@import"https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=Nunito:wght@600;700;800;900&family=Open+Sans:wght@400&display=swap";body.mp-tutor-chat-open{overflow:hidden}.mp-tutor-chat-overlay{position:fixed;top:0;right:0;bottom:0;left:0;z-index:10050;display:flex;flex-direction:column;background:linear-gradient(180deg,#fbf6ec 0%,var(--mp-tutor-page, #f4eee4) 35%)}.mp-tutor-chat-page--overlay{flex:1;min-height:0}.mp-tutor-chat-page{--mp-tutor-sidebar: 18.5rem;--mp-tutor-sidebar-collapsed: 3.25rem;--mp-tutor-header: 3.35rem;--mp-tutor-gold: #ffc02e;--mp-tutor-gold-dark: #e9a844;--mp-tutor-ink: #1a1612;--mp-tutor-muted: #6b6258;--mp-tutor-line: #ebe3d6;--mp-tutor-page: #f4eee4;--mp-tutor-card: #fffdf8;min-height:100vh;height:100dvh;max-height:100dvh;overflow:hidden;display:flex;flex-direction:column;background:linear-gradient(180deg,#fbf6ec 0%,var(--mp-tutor-page) 35%);color:var(--mp-tutor-ink);font-family:var(--mp-font-ui, "Nunito", "Inter", sans-serif)}.mp-tutor-chat-page__header{height:var(--mp-tutor-header);flex-shrink:0;display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:0 1rem 0 1.1rem;border-bottom:1px solid var(--mp-tutor-line);background:#fffdf8f5;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.mp-tutor-chat-page__brand{display:flex;align-items:center;gap:.65rem;min-width:0}.mp-tutor-chat-page__logo{width:2.35rem;height:2.35rem;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;background:linear-gradient(145deg,#ffd34a 0%,var(--mp-tutor-gold-dark) 100%);border:2px solid #fff;box-shadow:0 4px 12px #d98a2f40;flex-shrink:0}.mp-tutor-chat-page__title{margin:0;font-size:1.05rem;font-weight:800;line-height:1.2}.mp-tutor-chat-page__context{margin:.1rem 0 0;font-size:.82rem;color:var(--mp-tutor-muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:min(42vw,28rem)}.mp-tutor-chat-page__close{width:2rem;height:2rem;border:none;border-radius:999px;background:#1a16120f;color:#78716c;font-size:1.25rem;line-height:1;cursor:pointer}.mp-tutor-chat-page__close:hover{background:#1a16121a}.mp-tutor-chat-page__body{flex:1;min-height:0;display:grid;grid-template-columns:var(--mp-tutor-sidebar) 1fr}.mp-tutor-chat-page__body.is-history-collapsed{grid-template-columns:var(--mp-tutor-sidebar-collapsed) 1fr}.mp-tutor-chat-history{border-right:1px solid rgba(26,22,18,.08);background:transparent;display:flex;flex-direction:column;min-height:0;overflow:hidden}.mp-tutor-chat-history--collapsed{align-items:center;padding-top:1rem}.mp-tutor-chat-history__expand{writing-mode:vertical-rl;transform:rotate(180deg);border:none;background:transparent;font:inherit;font-size:.68rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:#9ca3af;cursor:pointer;padding:.5rem .25rem}.mp-tutor-chat-history__head{display:flex;align-items:center;justify-content:space-between;gap:.5rem;padding:1.15rem 1rem .9rem}.mp-tutor-chat-history__label{margin:0;font-size:.68rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:#9ca3af}.mp-tutor-chat-history__actions{display:flex;align-items:center;gap:.35rem}.mp-tutor-chat-history__collapse{display:inline-flex;align-items:center;justify-content:center;width:1.65rem;height:1.65rem;border:none;border-radius:.4rem;background:transparent;color:#9ca3af;cursor:pointer}.mp-tutor-chat-history__collapse:hover{background:#1a16120d;color:var(--mp-tutor-ink)}.mp-tutor-chat-history__new{border:none;border-radius:.45rem;padding:.2rem .35rem;font:inherit;font-size:.88rem;font-weight:800;background:transparent;color:var(--mp-tutor-ink);cursor:pointer}.mp-tutor-chat-history__new.is-active,.mp-tutor-chat-history__new:hover{color:#000}.mp-tutor-chat-history__list{list-style:none;margin:0;padding:0 .85rem 1rem;overflow:auto;flex:1;display:grid;gap:.65rem;align-content:start}.mp-tutor-chat-history__card{width:100%;text-align:left;border:1.5px solid transparent;border-radius:.9rem;padding:.85rem .9rem .8rem;background:#fff;box-shadow:0 2px 14px #1a16120f;cursor:pointer;font:inherit;transition:border-color .15s ease,box-shadow .15s ease,transform .15s ease}.mp-tutor-chat-history__card:hover{box-shadow:0 6px 20px #1a161214}.mp-tutor-chat-history__card.is-active{border-color:var(--mp-tutor-gold-dark);box-shadow:0 6px 22px #e9a8442e}.mp-tutor-chat-history__card-title{display:block;font-size:.92rem;font-weight:700;line-height:1.35;color:var(--mp-tutor-ink);margin-bottom:.55rem}.mp-tutor-chat-history__card-meta{display:flex;align-items:center;gap:.45rem;flex-wrap:wrap}.mp-tutor-chat-history__badge{display:inline-flex;align-items:center;padding:.18rem .5rem;border-radius:999px;background:#ecfdf5;color:#047857;font-size:.62rem;font-weight:800;letter-spacing:.05em}.mp-tutor-chat-history__time{font-size:.78rem;font-weight:500;color:#9ca3af}.mp-tutor-chat-history__preview{margin-top:.55rem;padding-top:.55rem;border-top:1px solid rgba(26,22,18,.06);font-size:.82rem;line-height:1.4;color:#6b7280;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.mp-tutor-chat-history__status,.mp-tutor-chat-history__empty,.mp-tutor-chat-history__error{margin:.35rem 1rem .85rem;font-size:.84rem;line-height:1.45;color:var(--mp-tutor-muted)}.mp-tutor-chat-history__error{color:#b91c1c}.mp-tutor-chat-history__retry{margin:0 .85rem .85rem;border:1px solid var(--mp-tutor-line);border-radius:.65rem;padding:.45rem .75rem;font:inherit;cursor:pointer;background:#fff}.mp-tutor-chat-page__main{min-width:0;min-height:0;display:flex;flex-direction:column;overflow:hidden;background:transparent}.mp-tutor-chat-page__content{flex:1;min-height:0;display:flex;flex-direction:column;overflow:hidden}.mp-tutor-chat-page__composer-dock{flex-shrink:0;border-top:none;background:transparent;padding:0 1.25rem max(1.25rem,env(safe-area-inset-bottom,0px));box-shadow:none;z-index:5;width:100%;box-sizing:border-box}.mp-tutor-chat-page__composer-dock .mp-doubt-chat-footer--docked{padding:0;border-top:none;background:transparent;width:100%}.mp-tutor-chat-page__history{flex:1;min-height:0;display:flex;flex-direction:column;overflow:hidden}.mp-tutor-chat-page__history-head{display:flex;align-items:center;justify-content:space-between;gap:.75rem;padding:.65rem 1rem;border-bottom:1px solid var(--mp-tutor-line);background:var(--mp-tutor-card);flex-shrink:0}.mp-tutor-chat-page__history-head h3{margin:0;font-size:.92rem;font-weight:700}.mp-tutor-chat-page__history-new{border:none;border-radius:999px;padding:.4rem .75rem;font:inherit;font-size:.78rem;font-weight:700;cursor:pointer;background:linear-gradient(135deg,var(--mp-tutor-gold) 0%,var(--mp-tutor-gold-dark) 100%);color:var(--mp-tutor-ink)}.mp-tutor-chat-page__history-scroll{flex:1;min-height:0;overflow:auto;padding:0;background:var(--mp-tutor-page, #f4eee4)}.mp-tutor-chat-history-messages{display:flex;flex-direction:column;gap:.85rem;padding:1rem 0 1.5rem;min-height:min(100%,100%)}.mp-tutor-chat-history-messages .mp-doubt-chat-msg--user{align-self:flex-end;align-items:flex-end;margin-left:1.25rem;margin-right:1.25rem;max-width:min(100%,36rem)}.mp-tutor-chat-history-messages .mp-doubt-chat-msg--with-slide{align-self:stretch;width:100%;max-width:none}.mp-tutor-chat-history-messages .mp-doubt-chat-msg--bare-slide{margin:0}.mp-tutor-chat-history-messages .mp-tutor-chat-slide--bare{margin:0 1.25rem}.mp-tutor-chat-history-messages .mp-doubt-chat-msg--ai:not(.mp-doubt-chat-msg--with-slide){align-self:flex-start;margin-left:1.25rem;margin-right:1.25rem;max-width:min(100%,36rem)}.mp-tutor-chat-page__live{flex:1;min-height:0;display:flex;flex-direction:column;overflow:hidden}.mp-tutor-chat-page__live.is-collapsed{flex:0 0 0;height:0;min-height:0;overflow:hidden;pointer-events:none}.mp-tutor-chat-page__live .mp-doubt-chat-panel--page,.mp-tutor-chat-page__live .mp-doubt-chat-panel--page.is-composer-docked .chapter-parts-agent-chat-panel__main{flex:1;min-height:0;overflow:hidden;display:flex;flex-direction:column}.mp-tutor-chat-page__live .mp-doubt-chat-panel--page .mp-doubt-chat-messages{flex:1;min-height:0;overflow:auto;padding:0;display:flex;flex-direction:column;gap:.85rem}.mp-tutor-chat-welcome{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:2rem 1.5rem 1rem;min-height:min(52vh,28rem)}.mp-tutor-chat-welcome__title{margin:0;font-family:var(--mp-font-display, "Fraunces", "Georgia", serif);font-size:clamp(2rem,4vw,2.75rem);font-weight:700;line-height:1.15;color:var(--mp-tutor-ink)}.mp-tutor-chat-welcome__subtitle{margin:.65rem 0 0;font-size:1rem;color:#6b7280}.mp-tutor-chat-welcome__suggestions{margin-top:2rem;width:min(100%,40rem)}.mp-tutor-chat-welcome__suggestions-label{margin:0 0 .85rem;font-size:.82rem;color:#9ca3af}.mp-tutor-chat-welcome__chips{display:flex;flex-wrap:wrap;justify-content:center;gap:.55rem}.mp-tutor-chat-welcome__chip{padding:.55rem .95rem;border-radius:999px;border:1px solid rgba(26,22,18,.12);background:#fff;color:var(--mp-tutor-ink);font:inherit;font-size:.84rem;font-weight:600;line-height:1.35;cursor:pointer;transition:background .15s ease,border-color .15s ease,color .15s ease}.mp-tutor-chat-welcome__chip:hover:not(:disabled){background:#111;border-color:#111;color:#fff}.mp-tutor-chat-welcome__chip:disabled{opacity:.55;cursor:not-allowed}.mp-tutor-chat-page__composer-dock .mp-doubt-chat-composer--page{width:100%;max-width:none;margin:0;align-items:center;background:#fff;border-radius:.85rem;box-shadow:0 10px 32px #1a16121a;padding:.35rem .35rem .35rem 1rem;border:1px solid rgba(26,22,18,.06)}.mp-tutor-chat-page__composer-dock .mp-doubt-chat-input{border:none;background:transparent;box-shadow:none;padding:.65rem .5rem;font-size:.95rem;line-height:1.25}.mp-tutor-chat-page__composer-dock .mp-doubt-chat-input:focus{box-shadow:none}.mp-tutor-chat-page__composer-dock .mp-doubt-chat-send--ask{min-width:4.25rem;height:2.65rem;align-self:center;border-radius:.65rem;border:none;font-size:.92rem;font-weight:800;padding:0 1rem;flex-shrink:0}.mp-tutor-chat-page__live .mp-doubt-chat-msg--with-slide{align-self:stretch;align-items:stretch;width:100%;max-width:none;margin-left:0;margin-right:0}.mp-tutor-chat-page__live .mp-doubt-chat-msg--bare-slide{margin:0}.mp-tutor-chat-page__live .mp-doubt-chat-msg:not(.mp-doubt-chat-msg--with-slide){margin-left:1.25rem;margin-right:1.25rem}.mp-tutor-chat-question-pill{align-self:flex-end;max-width:min(100%,22rem);margin:.85rem 1.25rem 0;padding:.55rem .95rem;border-radius:999px;background:#fff6df;border:1px solid #f1d48a;color:var(--mp-tutor-ink, #1a1612);font-size:.86rem;font-weight:700;line-height:1.35;box-shadow:0 4px 14px #1a14100f}.mp-tutor-chat-slide{width:100%;margin:0;background:#fff}.mp-tutor-chat-slide--bare{margin:0 1.25rem;border-radius:1.15rem;overflow:hidden;border:1px solid var(--mp-tutor-line, #ebe3d6);box-shadow:0 10px 30px #1a14100f}.mp-tutor-chat-slide--bare .agent-chat-slide-html,.mp-tutor-chat-slide--bare .agent-whiteboard__seed--verbatim{width:100%;max-width:none}.mp-tutor-chat-slide--bare .verbatim-html-scroll-wrap{width:100%;max-width:none;overflow-x:auto;border-radius:0}.mp-tutor-chat-slide--bare .agent-whiteboard__verbatim-frame{width:100%!important;min-width:100%;max-width:none}.mp-doubt-chat-slide__chrome{display:flex;align-items:center;justify-content:space-between;gap:.75rem;padding:.75rem 1.25rem;background:linear-gradient(180deg,#fff8e6,#fffdf8);border-bottom:1px solid var(--mp-tutor-line, #ebe3d6)}.mp-doubt-chat-slide.is-collapsed .mp-doubt-chat-slide__chrome{border-bottom:none}.mp-doubt-chat-slide__summary{margin:0;flex:1;min-width:0;font-size:.92rem;font-weight:700;line-height:1.45;color:var(--mp-tutor-ink, #1a1612)}.mp-doubt-chat-slide__summary--placeholder{color:var(--mp-tutor-muted, #6b6258);font-weight:600}.mp-doubt-chat-slide__toggle{flex-shrink:0;display:inline-flex;align-items:center;gap:.35rem;border:1px solid var(--mp-tutor-line, #ebe3d6);border-radius:999px;padding:.35rem .75rem;font:inherit;font-size:.78rem;font-weight:700;background:#fff;color:var(--mp-tutor-ink, #1a1612);cursor:pointer}.mp-doubt-chat-slide__toggle:hover{border-color:var(--mp-tutor-gold-dark, #e9a844);background:#fff8e6}.mp-doubt-chat-slide__toggle-icon{font-size:.7rem;line-height:1}.mp-doubt-chat-slide__body{width:100%;min-height:min(52vh,28rem);max-height:min(72vh,40rem);overflow:auto;padding:.75rem 1.25rem 1rem;background:#fffdf8}.mp-doubt-chat-slide__body.is-hidden{display:none}.mp-doubt-chat-slide__body .agent-chat-slide-html,.mp-doubt-chat-slide__body .agent-whiteboard__seed--verbatim{width:100%;max-width:none}.mp-doubt-chat-slide__body .verbatim-html-scroll-wrap{width:100%;max-width:none;overflow-x:auto;border-radius:0}.mp-doubt-chat-slide__body .agent-whiteboard__verbatim-frame{width:100%!important;min-width:100%;max-width:none}.mp-doubt-chat-msg__bubble .agent-chat-slide-html{margin-top:.35rem;max-width:min(100%,44rem)}.mp-doubt-chat-msg__bubble .agent-chat-slide-html .verbatim-html-scroll-wrap{border-radius:.75rem;overflow:hidden}.mp-tutor-chat-page__composer-dock .mp-doubt-chat-footer__label,.mp-tutor-chat-page__live .mp-doubt-chat-footer__label{margin:0 0 .55rem;font-size:.82rem;font-weight:800;color:var(--mp-tutor-ink)}.mp-tutor-chat-page__composer-dock .mp-doubt-chat-input,.mp-tutor-chat-page__live .mp-doubt-chat-input{background:#fff;border-color:var(--mp-tutor-line);font-size:.9rem;padding:.72rem 1rem}.mp-tutor-chat-page__composer-dock .mp-doubt-chat-send,.mp-tutor-chat-page__live .mp-doubt-chat-send{background:linear-gradient(135deg,var(--mp-tutor-gold) 0%,var(--mp-tutor-gold-dark) 100%);color:var(--mp-tutor-ink)}.mp-tutor-chat-page__composer-dock .mp-doubt-chat-mic,.mp-tutor-chat-page__live .mp-doubt-chat-mic{background:linear-gradient(135deg,var(--mp-tutor-gold) 0%,var(--mp-tutor-gold-dark) 100%);border-color:var(--mp-tutor-gold-dark);color:var(--mp-tutor-ink)}.mp-tutor-chat-thread{display:grid;gap:1rem}.mp-tutor-chat-thread__status,.mp-tutor-chat-thread__empty{margin:0;color:var(--mp-tutor-muted);font-size:.9rem}.mp-tutor-chat-thread__msg{display:flex;flex-direction:column;gap:.35rem;max-width:100%}.mp-tutor-chat-thread__msg--user{align-items:flex-end}.mp-tutor-chat-thread__msg--agent{align-items:flex-start}.mp-tutor-chat-thread__time{font-size:.72rem;color:var(--mp-tutor-muted)}.mp-tutor-chat-thread__bubble{max-width:min(100%,44rem);border-radius:1rem;padding:.75rem .9rem;line-height:1.45;font-size:.92rem}.mp-tutor-chat-thread__msg--user .mp-tutor-chat-thread__bubble{background:linear-gradient(135deg,var(--mp-tutor-gold) 0%,var(--mp-tutor-gold-dark) 100%);color:var(--mp-tutor-ink);border-bottom-right-radius:.35rem}.mp-tutor-chat-thread__msg--agent .mp-tutor-chat-thread__bubble{background:#faf7f1;border:1px solid var(--mp-tutor-line);border-bottom-left-radius:.35rem;padding:.5rem}.mp-tutor-chat-thread__fallback{margin:0;padding:.35rem .45rem}@media (max-width: 820px){.mp-tutor-chat-page__body,.mp-tutor-chat-page__body.is-history-collapsed{grid-template-columns:1fr;grid-template-rows:auto 1fr}.mp-tutor-chat-history,.mp-tutor-chat-history--collapsed{max-height:13rem;border-right:none;border-bottom:1px solid var(--mp-tutor-line);writing-mode:horizontal-tb}.mp-tutor-chat-history__expand{writing-mode:horizontal-tb;transform:none}}.mp-tutor-chat-loading{width:100%;padding:.5rem 0 1rem}.mp-tutor-chat-loading__card{width:100%;border-radius:1.1rem;background:#1a1816;color:#f5f0e8;padding:1.15rem 1.2rem 1rem;box-shadow:0 18px 40px #1a161238}.mp-tutor-chat-loading__tags{display:flex;flex-wrap:wrap;gap:.45rem;margin-bottom:.85rem}.mp-tutor-chat-loading__tag{display:inline-flex;align-items:center;padding:.28rem .65rem;border-radius:999px;border:1px solid rgba(255,255,255,.14);background:#ffffff0a;font-size:.68rem;font-weight:700;letter-spacing:.04em;text-transform:uppercase;color:#f5f0e8e0}.mp-tutor-chat-loading__tag--primary{background:var(--mp-tutor-gold, #ffc02e);border-color:var(--mp-tutor-gold, #ffc02e);color:#1a1612}.mp-tutor-chat-loading__tag--topic{text-transform:none;letter-spacing:0;font-size:.72rem;font-weight:600}.mp-tutor-chat-loading__terminal{position:relative;border-radius:.85rem;background:#282421;padding:1rem 1rem .85rem;margin-bottom:.85rem}.mp-tutor-chat-loading__terminal-dots{display:flex;gap:.35rem;margin-bottom:.85rem}.mp-tutor-chat-loading__terminal-dots span{width:.55rem;height:.55rem;border-radius:999px;background:#ffc02e73}.mp-tutor-chat-loading__flow{margin:0 0 .85rem;font-family:var(--mp-font-display, "Fraunces", "Georgia", serif);font-size:clamp(1.35rem,2.5vw,1.75rem);line-height:1.25;color:#fff}.mp-tutor-chat-loading__arrow{color:#ffffff8c;padding:0 .15rem}.mp-tutor-chat-loading__tiles{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.55rem}.mp-tutor-chat-loading__tile{border-radius:.55rem;background:#00000038;padding:.55rem .65rem}.mp-tutor-chat-loading__tile--next{opacity:.45}.mp-tutor-chat-loading__tile-label{display:block;font-size:.58rem;font-weight:800;letter-spacing:.08em;color:var(--mp-tutor-gold, #ffc02e);margin-bottom:.15rem}.mp-tutor-chat-loading__tile-value{display:block;font-size:.92rem;font-weight:600;color:#fff}.mp-tutor-chat-loading__caption{margin:0 0 .85rem;font-size:.88rem;color:#f5f0e8b8}.mp-tutor-chat-loading__progress-track{height:.22rem;border-radius:999px;background:#ffffff1f;overflow:hidden}.mp-tutor-chat-loading__progress-bar{height:100%;width:38%;border-radius:inherit;background:linear-gradient(90deg,var(--mp-tutor-gold, #ffc02e) 0%,#ffd966 100%);animation:mp-tutor-chat-loading-progress 1.8s ease-in-out infinite}@keyframes mp-tutor-chat-loading-progress{0%{transform:translate(-120%);width:28%}50%{width:42%}to{transform:translate(320%);width:28%}}:root{--mp-tutor-edge: .75rem;--mp-tutor-top-gap: .35rem;--mp-tutor-chat-width: min(25rem, 30%)}html.mp-agent-open,html.mp-agent-open body{overflow:hidden!important;height:100%;overscroll-behavior:none}.mp-brand-my{font-family:var(--mp-font-brand, "Nunito", "Inter", sans-serif);font-weight:800;color:#1a1410}.mp-brand-pencil{font-family:var(--mp-font-brand, "Nunito", "Inter", sans-serif);font-weight:800;color:#d98b29}.mp-assistant-fab-anchor{position:fixed;right:max(1rem,env(safe-area-inset-right,0px));bottom:max(1.25rem,env(safe-area-inset-bottom,0px));z-index:1100;display:flex;flex-direction:column;align-items:flex-end;gap:.85rem;pointer-events:none}.mp-assistant-fab-anchor>*{pointer-events:auto}html.mp-agent-open .mp-assistant-fab-anchor{display:none}.mp-assistant-fab-popup{position:relative;width:min(19rem,calc(100vw - 2.75rem));padding:1rem 1rem .9rem;border-radius:1.35rem;border:1px solid rgba(26,22,18,.08);background:#fff;box-shadow:0 16px 42px #1a161224;font-family:var(--mp-font-ui, "Nunito", "Inter", sans-serif);animation:mp-assistant-popup-in .28s cubic-bezier(.22,1,.36,1)}@keyframes mp-assistant-popup-in{0%{opacity:0;transform:translateY(.65rem) scale(.96)}to{opacity:1;transform:translateY(0) scale(1)}}.mp-assistant-fab-popup__close{position:absolute;top:.65rem;right:.65rem;width:1.65rem;height:1.65rem;border:none;border-radius:999px;background:#1a16120f;color:#78716c;font-size:1.1rem;line-height:1;cursor:pointer;display:flex;align-items:center;justify-content:center}.mp-assistant-fab-popup__close:hover{background:#1a16121a;color:#44403c}.mp-assistant-fab-popup__head{display:flex;align-items:center;gap:.55rem;margin-bottom:.65rem;padding-right:1.75rem}.mp-assistant-fab-popup__logo{width:2.35rem;height:2.35rem;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;overflow:hidden;background:linear-gradient(145deg,#ffd34a,#e9a844);border:2px solid rgba(255,255,255,.95);box-shadow:0 4px 14px #d98a2f47}.mp-assistant-fab-popup__logo-img{display:block;width:118%;height:118%;-o-object-fit:contain;object-fit:contain;transform:scale(1.14)}.mp-assistant-fab-popup__brand{font-size:1.05rem;font-weight:800;line-height:1.2;color:#1a1612}.mp-assistant-fab-popup__message{margin:0 0 .85rem;font-size:.92rem;font-weight:600;line-height:1.45;color:#1a1612}.mp-assistant-fab-popup__cta{width:100%;border:none;border-radius:999px;padding:.72rem 1rem;background:linear-gradient(135deg,#ffc02e,#e9a844);color:#1a1612;font-family:inherit;font-size:.92rem;font-weight:800;cursor:pointer;box-shadow:0 6px 18px #d98b2947;transition:transform .16s ease,box-shadow .16s ease}.mp-assistant-fab-popup__cta:hover{transform:translateY(-1px);box-shadow:0 10px 22px #d98b2957}.mp-assistant-fab{position:relative;flex-shrink:0;width:4rem;height:4rem;border:3px solid #fff;border-radius:50%;background:linear-gradient(145deg,#ffd34a,#e5a035);box-shadow:0 10px 28px #d98a2f75,0 4px 10px #1a161224;cursor:pointer;display:flex;align-items:center;justify-content:center;padding:0;overflow:hidden;transition:transform .18s ease,box-shadow .18s ease}.mp-assistant-fab:hover{transform:translateY(-2px) scale(1.03);box-shadow:0 14px 34px #d98a2f85,0 6px 14px #1a161229}.mp-assistant-fab:focus-visible{outline:3px solid rgba(255,193,46,.55);outline-offset:3px}.mp-assistant-fab__icon-wrap{width:82%;height:82%;display:flex;align-items:center;justify-content:center;border-radius:50%;overflow:hidden}.mp-assistant-fab__pencil{display:block;width:122%;height:122%;-o-object-fit:contain;object-fit:contain;transform:scale(1.16)}.mp-assistant-fab__chat-badge{position:absolute;right:-.1rem;bottom:-.05rem;width:1.35rem;height:1.35rem;border-radius:50%;background:#1a1612;color:#ffd34a;border:2px solid #fff;display:flex;align-items:center;justify-content:center;box-shadow:0 2px 8px #1a161238;pointer-events:none}.mp-assistant-fab__chat-badge svg{display:block;width:.72rem;height:.72rem}.mp-assistant-fab__dot{position:absolute;top:.2rem;right:.2rem;width:.62rem;height:.62rem;border-radius:50%;background:#ef4444;border:2px solid #fff;z-index:1}@media (max-width: 540px){.mp-assistant-fab-anchor{right:.85rem;bottom:.85rem}.mp-assistant-fab-popup{width:min(18rem,calc(100vw - 1.7rem));padding:.9rem .9rem .8rem}.mp-assistant-fab-popup__message{font-size:.86rem}.mp-assistant-fab{width:3.75rem;height:3.75rem}.mp-assistant-fab__chat-badge{width:1.2rem;height:1.2rem}}.mp-assistant-root{position:fixed;right:1rem;bottom:1rem;z-index:1300;width:min(22rem,calc(100vw - 2rem));max-height:min(34rem,calc(100vh - 2rem));font-family:var(--mp-font-ui, "Nunito", "Inter", sans-serif)}.mp-assistant-root.is-minimized{width:auto;max-height:none}.mp-assistant-minibar{display:flex;align-items:center;gap:.55rem;padding:.55rem .85rem;border:1px solid rgba(26,20,16,.12);border-radius:999px;background:#fff;box-shadow:0 8px 24px #1a14101f;cursor:pointer;font-size:.85rem;font-weight:700}.mp-assistant-panel{display:flex;flex-direction:column;height:min(34rem,calc(100vh - 2rem));border-radius:1.1rem;overflow:hidden;border:1px solid rgba(26,20,16,.1);box-shadow:0 18px 48px #1a14102e;background:#fdf8f0}.mp-assistant-header{display:flex;align-items:center;justify-content:space-between;gap:.75rem;padding:.85rem .95rem;background:#1a1410;color:#fff}.mp-assistant-header__left{display:flex;align-items:center;gap:.65rem;min-width:0}.mp-assistant-logo{width:2.25rem;height:2.25rem;border-radius:.65rem;background:linear-gradient(135deg,#ffc02e,#e6ad29);display:flex;align-items:center;justify-content:center;font-size:1.1rem;flex-shrink:0}.mp-assistant-title{margin:0;font-size:1rem;font-weight:800;line-height:1.2;display:flex;align-items:center;gap:.35rem}.mp-assistant-title .mp-brand-my{color:#fff}.mp-assistant-online{width:.45rem;height:.45rem;border-radius:50%;background:#22c55e;flex-shrink:0}.mp-assistant-subtitle{margin:.15rem 0 0;font-size:.72rem;opacity:.82;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:12rem}.mp-assistant-header__actions{display:flex;gap:.35rem}.mp-assistant-icon-btn{width:1.75rem;height:1.75rem;border:none;border-radius:.45rem;background:#ffffff1f;color:#fff;font-size:1rem;line-height:1;cursor:pointer}.mp-assistant-tabs{display:grid;grid-template-columns:1fr 1fr;gap:.35rem;padding:.55rem .65rem 0;background:#1a1410}.mp-assistant-tab{border:1px solid rgba(255,255,255,.14);border-radius:999px;background:transparent;color:#ffffffbf;font-size:.78rem;font-weight:700;padding:.4rem .5rem;cursor:pointer}.mp-assistant-tab.is-active{background:#fdf8f0;color:#1a1410;border-color:#fdf8f0}.mp-assistant-modes{display:grid;grid-template-columns:repeat(3,1fr);gap:.35rem;padding:.55rem .65rem;background:#fdf8f0;border-bottom:1px solid rgba(26,20,16,.08)}.mp-assistant-mode{border:1px solid rgba(26,20,16,.1);border-radius:.65rem;background:#fff;font-size:.72rem;font-weight:700;padding:.35rem .25rem;cursor:pointer;color:#1a1410}.mp-assistant-mode.is-active{background:#fff4db;border-color:#d98b29;color:#9a3412}.mp-assistant-body{flex:1;min-height:0;overflow-y:auto;padding:.85rem;background:#fdf8f0}.mp-assistant-body--history,.mp-assistant-body--voice{display:flex;flex-direction:column;gap:.55rem}.mp-assistant-msg{display:flex;flex-direction:column;margin-bottom:.65rem;max-width:92%}.mp-assistant-msg--user{align-self:flex-end;align-items:flex-end}.mp-assistant-msg--ai{align-self:flex-start;align-items:flex-start}.mp-assistant-msg__bubble{padding:.65rem .8rem;border-radius:1rem;font-size:.82rem;line-height:1.55;box-shadow:0 2px 8px #1a14100f}.mp-assistant-msg--user .mp-assistant-msg__bubble{background:linear-gradient(135deg,#ffc02e,#f59e0b);color:#1a1410;border-bottom-right-radius:.25rem}.mp-assistant-msg--ai .mp-assistant-msg__bubble{background:#fff;color:#1a1410;border:1px solid rgba(26,20,16,.08);border-bottom-left-radius:.25rem}.mp-assistant-msg__time{font-size:.65rem;color:#78716c;margin-top:.2rem}.mp-assistant-history-row{display:flex;align-items:center;gap:.65rem;width:100%;text-align:left;border:1px solid rgba(26,20,16,.08);border-radius:.85rem;background:#fff;padding:.65rem .75rem;cursor:pointer}.mp-assistant-history-row__icon{width:2rem;height:2rem;border-radius:.55rem;background:#fff4db;display:flex;align-items:center;justify-content:center;flex-shrink:0}.mp-assistant-history-row__text{display:flex;flex-direction:column;min-width:0}.mp-assistant-history-row__title{font-size:.82rem;font-weight:700;color:#1a1410}.mp-assistant-history-row__meta{font-size:.68rem;color:#78716c}.mp-assistant-history-all{margin-top:auto;border:none;border-radius:.85rem;background:#fff4db;color:#9a3412;font-weight:700;font-size:.82rem;padding:.7rem .85rem;cursor:pointer}.mp-assistant-voice-title{margin:0;font-size:.95rem;font-weight:800;color:#1a1410}.mp-assistant-voice-sub{margin:0;font-size:.82rem;line-height:1.55;color:#57534e}.mp-assistant-voice-btn{align-self:flex-start;border:none;border-radius:999px;background:linear-gradient(135deg,#ffc02e,#e6ad29);color:#1a1410;font-weight:800;font-size:.82rem;padding:.55rem .9rem;cursor:pointer}.mp-assistant-empty{font-size:.82rem;color:#78716c;margin:0}.mp-assistant-footer{display:flex;align-items:center;gap:.45rem;padding:.65rem;background:#fff;border-top:1px solid rgba(26,20,16,.08)}.mp-assistant-input{flex:1;min-width:0;border:1px solid rgba(26,20,16,.12);border-radius:999px;padding:.55rem .85rem;font-size:.82rem;font-family:inherit;background:#fdf8f0}.mp-assistant-send{width:2.2rem;height:2.2rem;border:none;border-radius:999px;background:linear-gradient(135deg,#ffc02e,#e6ad29);color:#1a1410;font-weight:800;cursor:pointer}.mp-message-bar{margin:.75rem 0 1rem;padding:.85rem;border-radius:1rem;background:linear-gradient(180deg,#fff,#fdf8f0);border:1px solid rgba(217,139,41,.25);box-shadow:0 4px 14px #1a14100f}.mp-message-bar--compact{margin:.5rem 0;padding:.65rem}.mp-message-bar__head{display:flex;gap:.65rem;align-items:flex-start}.mp-message-bar__logo{width:2rem;height:2rem;border-radius:.55rem;background:linear-gradient(135deg,#ffc02e,#e6ad29);display:flex;align-items:center;justify-content:center;flex-shrink:0}.mp-message-bar__brand{margin:0 0 .2rem;font-size:.82rem;font-weight:800}.mp-message-bar__text{margin:0;font-size:.78rem;line-height:1.5;color:#44403c}.mp-message-bar__modes{display:grid;grid-template-columns:repeat(3,1fr);gap:.35rem;margin-top:.65rem}.mp-message-bar__mode{border:1px solid rgba(26,20,16,.1);border-radius:.6rem;background:#fff;font-size:.72rem;font-weight:700;padding:.35rem .25rem;cursor:pointer}.mp-message-bar__mode:hover{background:#fff4db;border-color:#d98b29}.mp-message-bar__cta{margin-top:.55rem;width:100%;border:none;border-radius:999px;background:linear-gradient(135deg,#ffc02e,#e6ad29);color:#1a1410;font-weight:800;font-size:.78rem;padding:.5rem .75rem;cursor:pointer}.mp-message-bar__hint{margin:.45rem 0 0;font-size:.68rem;color:#78716c;font-style:italic}.subject-card .mp-subject-hint{margin-top:.65rem;padding:.55rem .65rem;border-radius:.65rem;background:#fdf8f0;border:1px dashed rgba(217,139,41,.35);font-size:.78rem;line-height:1.45;color:#57534e;font-family:var(--mp-font-ui, "Nunito", "Inter", sans-serif)}.dashboard-planner-card{margin-top:1.5rem;padding:1.1rem 1.25rem;border-radius:1rem;background:#fff;border:1px solid rgba(26,20,16,.08);box-shadow:0 4px 16px #1a14100d}.dashboard-planner-card__title{margin:0 0 .35rem;font-size:1rem;font-weight:800;color:#1a1410}.dashboard-planner-card__text{margin:0;font-size:.88rem;color:#57534e}.dashboard-planner-card__link{color:#d98b29;font-weight:700;cursor:pointer;border:none;background:none;padding:0;font:inherit}.mp-dashboard-title,.top-navbar .mp-navbar-logo__text{font-family:var(--mp-font-brand, "Nunito", "Inter", sans-serif)}.mp-navbar-logo{display:inline-flex;align-items:center;gap:.55rem;text-decoration:none}.mp-navbar-logo__icon{width:1.65rem;height:1.65rem;border-radius:.45rem;background:linear-gradient(135deg,#ffc02e,#e6ad29);display:inline-flex;align-items:center;justify-content:center;font-size:.85rem}.mp-navbar-logo__text{font-size:1rem;font-weight:900;line-height:1}@media (max-width: 640px){.mp-assistant-root{right:.5rem;left:.5rem;width:auto}}.mp-doubt-agent-overlay{position:fixed;top:0;right:0;bottom:0;left:0;z-index:1250;padding:calc(var(--app-top-navbar-offset, calc(3.25rem + 1px) ) + var(--mp-tutor-top-gap)) var(--mp-tutor-edge) var(--mp-tutor-edge);box-sizing:border-box;pointer-events:none;display:flex;flex-direction:column;align-items:stretch;overflow:hidden}.mp-doubt-agent-backdrop{position:absolute;top:0;right:0;bottom:0;left:0;z-index:0;border:none;background:#0f172a59;cursor:pointer;pointer-events:auto}.mp-doubt-agent-tutor-shell{position:relative!important;grid-column:unset!important;grid-row:unset!important;inset:unset!important;z-index:1;flex:1;min-height:0;width:100%;max-width:none;margin:0;height:100%;max-height:100%;align-items:stretch;justify-content:flex-end;pointer-events:none;overflow:hidden}.mp-doubt-agent-overlay .chapter-parts-tutor-shell>*{pointer-events:auto}.mp-doubt-agent-tutor-shell.has-whiteboard.is-full-split{justify-content:stretch;gap:var(--mp-tutor-edge)}.mp-doubt-agent-overlay .chapter-parts-tutor-shell .chapter-parts-agent-sidebar--mp-theme{flex:0 0 var(--mp-tutor-chat-width)!important;width:var(--mp-tutor-chat-width)!important;max-width:var(--mp-tutor-chat-width)!important}.mp-doubt-agent-overlay .chapter-parts-tutor-shell.has-whiteboard.is-full-split .agent-whiteboard{flex:1 1 auto;min-width:0;min-height:0;height:100%}@media (max-width: 1200px){:root{--mp-tutor-chat-width: min(22rem, 34%)}}@media (max-width: 768px){.mp-doubt-agent-overlay{padding-left:.5rem;padding-right:.5rem}.mp-doubt-agent-tutor-shell.has-whiteboard.is-full-split{flex-direction:column}.mp-doubt-agent-overlay .chapter-parts-tutor-shell.has-whiteboard.is-full-split .chapter-parts-agent-sidebar--mp-theme,.mp-doubt-agent-overlay .chapter-parts-tutor-shell .chapter-parts-agent-sidebar--mp-theme{flex:0 0 min(42vh,100%)!important;width:100%!important;max-width:100%!important}.mp-doubt-agent-overlay .chapter-parts-tutor-shell.has-whiteboard.is-full-split .agent-whiteboard{flex:1 1 auto;min-height:0}}.chapter-parts-agent-sidebar.chapter-parts-agent-sidebar--mp-theme{position:relative!important;top:auto!important;right:auto!important;bottom:auto!important;left:auto!important;transform:none!important;padding:0!important;height:100%;max-height:100%;min-height:0;min-width:0;display:flex;flex-direction:column}.chapter-parts-tutor-shell.is-main-column,.chapter-parts-tutor-shell.is-full-split,.chapter-parts-tutor-shell.mp-doubt-agent-tutor-shell{align-items:stretch;height:100%;min-height:0}.chapter-parts-tutor-shell:not(.has-whiteboard) .chapter-parts-agent-sidebar--mp-theme{flex:0 0 var(--mp-tutor-chat-width)!important;width:var(--mp-tutor-chat-width)!important;max-width:var(--mp-tutor-chat-width)!important;height:100%!important;align-self:stretch}.chapter-parts-tutor-shell.has-whiteboard.is-full-split{padding:0 var(--mp-tutor-edge) 0 var(--mp-tutor-edge);box-sizing:border-box}.chapter-parts-tutor-shell.has-whiteboard.is-full-split .chapter-parts-agent-sidebar--mp-theme{flex:0 0 var(--mp-tutor-chat-width)!important;width:var(--mp-tutor-chat-width)!important;max-width:var(--mp-tutor-chat-width)!important;height:100%!important;align-self:stretch}.chapter-parts-tutor-shell.has-whiteboard.is-full-split .agent-whiteboard{flex:1 1 auto;min-width:0;min-height:0;height:100%}.chapter-parts-tutor-shell.is-main-column:not(.has-whiteboard){padding-right:var(--mp-tutor-edge);box-sizing:border-box}.chapter-parts-agent-sidebar--mp-theme{--mp-chat-bg: #faf7f0;--mp-chat-header: #1a1612;--mp-chat-user: #e9a844;--mp-chat-ai: #f2e7c9;--mp-chat-send: #e9a844;background:var(--mp-chat-bg)!important;border:1px solid rgba(26,22,18,.08)!important;border-radius:1.25rem!important;box-shadow:0 18px 48px #1a161229!important;padding:0!important;overflow:hidden;font-family:var(--mp-font-ui, "Nunito", "Inter", sans-serif);display:flex;flex-direction:column;min-height:0;height:100%}.chapter-parts-tutor-shell .chapter-parts-agent-sidebar--mp-theme{border-radius:1.25rem!important}.mp-doubt-chat-header{flex-shrink:0;background:var(--mp-chat-header);color:#fff;padding:.85rem .95rem .65rem}.mp-doubt-chat-header__top{display:flex;align-items:flex-start;justify-content:space-between;gap:.65rem}.mp-doubt-chat-header__brand{display:flex;align-items:center;gap:.65rem;min-width:0}.mp-doubt-chat-header__logo{width:2.5rem;height:2.5rem;border-radius:50%;display:flex;align-items:center;justify-content:center;flex-shrink:0;overflow:hidden;background:linear-gradient(145deg,#ffd34a,#e9a844);border:2px solid rgba(255,255,255,.2);box-shadow:0 4px 12px #0000002e}.mp-doubt-chat-header__logo-img{display:block;width:118%;height:118%;-o-object-fit:contain;object-fit:contain;transform:scale(1.14)}.mp-doubt-chat-header__titles{min-width:0}.mp-doubt-chat-header__title{margin:0;font-size:1rem;font-weight:800;line-height:1.2;display:flex;align-items:center;gap:.35rem}.mp-doubt-chat-header__title .mp-brand-my{color:#fff}.mp-doubt-chat-header__title .mp-brand-pencil{color:#e9a844}.mp-doubt-chat-header__online{width:.45rem;height:.45rem;border-radius:50%;background:#22c55e;flex-shrink:0}.mp-doubt-chat-header__context{margin:.2rem 0 0;font-size:.72rem;color:#ffffffc7;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:14rem}.mp-doubt-chat-header__actions{display:flex;gap:.35rem;flex-shrink:0}.mp-doubt-chat-header__icon-btn{width:1.75rem;height:1.75rem;border:none;border-radius:.45rem;background:#ffffff1f;color:#fff;font-size:1.1rem;line-height:1;cursor:pointer}.mp-doubt-chat-tabs{display:grid;grid-template-columns:1fr 1fr;gap:.35rem;margin-top:.65rem}.mp-doubt-chat-tab{border:1px solid rgba(255,255,255,.14);border-radius:999px;background:transparent;color:#ffffffb8;font-size:.78rem;font-weight:700;padding:.42rem .5rem;cursor:pointer}.mp-doubt-chat-tab.is-active{background:var(--mp-chat-bg);color:#1a1612;border-color:var(--mp-chat-bg)}.mp-doubt-chat-mode-bar{display:flex;align-items:center;justify-content:space-between;gap:.5rem;padding:.45rem .85rem;font-size:.72rem;color:#57534e;background:#ffffff8c;border-bottom:1px solid rgba(26,22,18,.06);flex-shrink:0}.mp-doubt-chat-mode-bar strong{color:#1a1612}.mp-doubt-chat-mode-bar__change{border:1px solid rgba(26,22,18,.1);background:#fff;border-radius:999px;font-size:.68rem;font-weight:700;padding:.28rem .6rem;cursor:pointer;color:#44403c}.mp-doubt-chat-mode-picker{margin:.75rem .85rem 0}.mp-doubt-chat-body{flex:1;min-height:0;display:flex;flex-direction:column;overflow:hidden}.chapter-parts-agent-sidebar--mp-theme>.mp-doubt-chat-body>.chapter-parts-agent-chat-panel,.chapter-parts-agent-sidebar--mp-theme>.mp-doubt-chat-body>.chapter-parts-agent-voice,.chapter-parts-agent-sidebar--mp-theme>.mp-doubt-chat-body>.mp-doubt-session-panel{flex:1;min-height:0}.mp-doubt-chat-messages{background:var(--mp-chat-bg)!important;padding:.85rem!important;flex:1;min-height:0;overflow-y:auto;-webkit-overflow-scrolling:touch}.mp-doubt-chat-msg{display:flex;flex-direction:column;margin-bottom:.75rem;max-width:92%}.mp-doubt-chat-msg--user{align-self:flex-end;align-items:flex-end;margin-left:auto}.mp-doubt-chat-msg--ai{align-self:flex-start;align-items:flex-start}.mp-doubt-chat-msg__time{font-size:.65rem;color:#78716c;margin-bottom:.2rem}.mp-doubt-chat-msg__time--right{text-align:right}.mp-doubt-chat-msg__bubble{padding:.7rem .85rem;border-radius:1rem;font-size:.84rem;line-height:1.55;box-shadow:0 2px 8px #1a16120f;max-width:100%}.mp-doubt-chat-msg--user .mp-doubt-chat-msg__bubble{background:var(--mp-chat-user);color:#1a1612;border-bottom-right-radius:.25rem}.mp-doubt-chat-msg--ai .mp-doubt-chat-msg__bubble{background:var(--mp-chat-ai);color:#1a1612;border-bottom-left-radius:.25rem}.mp-doubt-chat-msg__text{font-size:.84rem;line-height:1.55;white-space:pre-wrap;word-break:break-word}.mp-doubt-chat-msg__text--mono{font-family:inherit;margin:0;white-space:pre-wrap}.mp-doubt-chat-whiteboard-hint{margin:0;font-size:.84rem;line-height:1.55;font-weight:600;color:#78350f}.mp-doubt-chat-msg__cursor{display:inline-block;width:.25rem;height:.85rem;margin-left:.15rem;background:#78716c;vertical-align:middle;animation:mp-doubt-chat-blink 1s step-end infinite}@keyframes mp-doubt-chat-blink{50%{opacity:0}}.mp-doubt-chat-panel{display:flex;flex-direction:column;flex:1;min-height:0}.mp-doubt-chat-footer{flex-shrink:0;padding:.65rem .85rem .85rem;background:#fff;border-top:1px solid rgba(26,22,18,.08)}.mp-doubt-chat-composer{display:flex;align-items:center;gap:.45rem}.mp-doubt-chat-mic{width:2.35rem;height:2.35rem;border:1px solid var(--mp-chat-user);border-radius:999px;background:var(--mp-chat-user);color:#fff;font-size:1rem;line-height:1;cursor:pointer;flex-shrink:0;display:flex;align-items:center;justify-content:center;order:-1}.mp-doubt-chat-mic.is-connecting{opacity:.7;animation:mp-doubt-mic-pulse 1s ease-in-out infinite}@keyframes mp-doubt-mic-pulse{50%{transform:scale(.94);opacity:.55}}.mp-doubt-chat-mic.is-active{background:var(--mp-chat-ai);border-color:var(--mp-chat-user)}.mp-doubt-chat-mic.is-open{background:var(--mp-chat-user);border-color:var(--mp-chat-user);color:#fff}.mp-doubt-chat-mic.is-live{box-shadow:0 0 0 3px #e9a84440}.mp-doubt-chat-mic:disabled{opacity:.45;cursor:not-allowed}.mp-doubt-chat-voice-controls{margin-bottom:.65rem;padding:.75rem .85rem .7rem;border-radius:14px;background:var(--mp-chat-bg);border:1px solid rgba(26,22,18,.08)}.mp-doubt-chat-voice-controls__media{display:flex;justify-content:center;align-items:flex-start;gap:2.5rem}.mp-doubt-chat-voice-controls__btn{display:flex;flex-direction:column;align-items:center;gap:.35rem;border:none;background:transparent;padding:.2rem;color:#1a1612;cursor:pointer}.mp-doubt-chat-voice-controls__btn:disabled{opacity:.45;cursor:not-allowed}.mp-doubt-chat-voice-controls__icon{display:inline-flex;width:2.5rem;height:2.5rem;align-items:center;justify-content:center}.mp-doubt-chat-voice-controls__icon svg{width:2.2rem;height:2.2rem}.mp-doubt-chat-voice-controls__label{font-size:.82rem;font-weight:700;line-height:1}.mp-doubt-chat-voice-controls__btn.is-on .mp-doubt-chat-voice-controls__label{color:#1a1612}.mp-doubt-chat-voice-controls__btn.is-off .mp-doubt-chat-voice-controls__label{color:#64748b}.mp-doubt-chat-voice-controls__btn.is-live .mp-doubt-chat-voice-controls__icon{box-shadow:0 0 0 3px #e9a84447;border-radius:999px}.mp-doubt-chat-voice-controls__hint{margin:.55rem 0 0;text-align:center;font-size:.74rem;line-height:1.35;color:#64748b}.mp-doubt-chat-audio-host{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;pointer-events:none}.mp-doubt-chat-input{flex:1;min-width:0;border:1px solid rgba(26,22,18,.12);border-radius:999px;padding:.6rem .95rem;font-size:.82rem;font-family:inherit;background:var(--mp-chat-bg);color:#1a1612}.mp-doubt-chat-input:focus{outline:none;border-color:#e9a844a6;box-shadow:0 0 0 3px #e9a84426}.mp-doubt-chat-input:disabled{opacity:.65;cursor:not-allowed}.mp-doubt-chat-send{width:2.35rem;height:2.35rem;border:none;border-radius:999px;background:var(--mp-chat-send);color:#fff;font-size:.95rem;font-weight:800;cursor:pointer;flex-shrink:0;display:flex;align-items:center;justify-content:center}.mp-doubt-chat-send:disabled{opacity:.45;cursor:not-allowed}.mp-doubt-chat-start-again{width:100%;margin-top:.55rem;border:none;border-radius:999px;background:var(--mp-chat-ai);color:#1a1612;font-weight:700;font-size:.78rem;padding:.5rem .75rem;cursor:pointer}.mp-doubt-chat-suggestions{display:flex;flex-wrap:wrap;gap:.45rem;margin:0 0 .65rem;padding:0 .15rem}.mp-doubt-chat-suggestions__chip{padding:.45rem .75rem;background:#fff;border:1px solid rgba(26,22,18,.1);border-radius:999px;font-size:.74rem;font-weight:600;line-height:1.35;color:#3d3830;cursor:pointer;text-align:left;white-space:normal;max-width:100%;transition:background .15s ease,border-color .15s ease,color .15s ease}.mp-doubt-chat-suggestions__chip:hover{background:#fffbeb;border-color:#f59e0b73;color:#92400e}.mp-doubt-chat-suggestions__chip:focus-visible{outline:2px solid rgba(245,158,11,.55);outline-offset:2px}.mp-doubt-chat-history{flex:1;min-height:0;overflow-y:auto;padding:.85rem;display:flex;flex-direction:column;gap:.55rem;background:var(--mp-chat-bg)}.mp-doubt-chat-history-row{display:flex;align-items:center;gap:.65rem;border:1px solid rgba(26,22,18,.08);border-radius:.85rem;background:#fff;padding:.65rem .75rem;width:100%;text-align:left;font:inherit}.mp-doubt-chat-history-row--clickable{cursor:pointer;transition:border-color .15s ease,box-shadow .15s ease}.mp-doubt-chat-history-row--clickable:hover:not(:disabled){border-color:#f59e0b59;box-shadow:0 0 0 1px #f59e0b1f}.mp-doubt-chat-history-row--clickable:disabled{opacity:.7;cursor:wait}.mp-doubt-chat-history-row__action{margin-left:auto;flex-shrink:0;font-size:.82rem;color:#78716c}.mp-doubt-chat-history__toolbar{display:flex;flex-direction:column;gap:.25rem;margin-bottom:.15rem}.mp-doubt-chat-history__nav{align-self:flex-start;border:none;background:transparent;color:#57534e;font-size:.78rem;font-weight:700;padding:0;cursor:pointer}.mp-doubt-chat-history__nav:hover{color:#1a1612}.mp-doubt-chat-history__subtitle,.mp-doubt-chat-history__lead{margin:0;font-size:.72rem;font-weight:700;letter-spacing:.04em;text-transform:uppercase;color:#78716c}.mp-doubt-chat-history__status{margin:0;font-size:.82rem;color:#78716c}.mp-doubt-chat-history__error{margin:0;font-size:.82rem;color:#b45309}.mp-doubt-chat-history__retry{align-self:flex-start;border:1px solid rgba(26,22,18,.12);border-radius:.65rem;background:#fff;color:#1a1612;font-size:.78rem;font-weight:700;padding:.45rem .65rem;cursor:pointer}.mp-doubt-chat-history-row__icon{width:2rem;height:2rem;border-radius:.55rem;background:var(--mp-chat-ai);display:flex;align-items:center;justify-content:center;flex-shrink:0}.mp-doubt-chat-history-row__text{display:flex;flex-direction:column;min-width:0}.mp-doubt-chat-history-row__title{font-size:.82rem;font-weight:700;color:#1a1612}.mp-doubt-chat-history-row__meta{font-size:.68rem;color:#78716c}.mp-doubt-chat-history__empty{margin:0;font-size:.82rem;color:#78716c}.chapter-parts-agent-sidebar--mp-theme .tutor-agent-thinking-msg{background:var(--mp-chat-ai);border-radius:1rem 1rem 1rem .25rem;padding:.7rem .85rem}.chapter-parts-agent-sidebar--mp-theme .chapter-parts-agent-voice{background:var(--mp-chat-bg);padding:0 .85rem .85rem}.chapter-parts-agent-sidebar--mp-theme .chapter-parts-agent-voice__transcript{background:#fff;border-color:#1a161214}.chapter-parts-agent-sidebar--mp-theme .chapter-parts-agent-mode-card{background:#fff;border-color:#1a16121a}.chapter-parts-agent-sidebar--mp-theme .chapter-parts-agent-mode-card:hover{background:var(--mp-chat-ai);border-color:var(--mp-chat-user)}.mp-doubt-session-panel{display:flex;flex-direction:column;flex:1;min-height:0;overflow:hidden}.mp-doubt-session-panel.chapter-parts-agent-chat-panel__main,.mp-doubt-session-panel>.chapter-parts-agent-chat-panel__main{flex:1;min-height:0;display:flex;flex-direction:column;overflow:hidden}.mp-doubt-mode-bar{display:flex;gap:.35rem;padding:.55rem .85rem .45rem;background:#fff;border-bottom:1px solid rgba(26,22,18,.08);flex-shrink:0}.mp-doubt-mode-btn{flex:1;border:1px solid rgba(26,22,18,.1);border-radius:999px;background:var(--mp-chat-bg);color:#78716c;font-size:.78rem;font-weight:700;padding:.45rem .65rem;cursor:pointer;font-family:inherit}.mp-doubt-mode-btn.is-active{background:var(--mp-chat-user);border-color:var(--mp-chat-user);color:#fff}.mp-doubt-session-label{margin:0 0 .65rem;font-size:.68rem;font-weight:700;letter-spacing:.04em;text-transform:uppercase;color:#78716c}.mp-doubt-voice-panel{display:flex;flex-direction:column;flex:1;min-height:0;background:var(--mp-chat-bg)}.mp-doubt-voice-panel .chapter-parts-agent-voice__main{flex:1;min-height:0;display:flex;flex-direction:column;padding:.65rem .85rem 0}.mp-doubt-voice-panel .chapter-parts-agent-voice__transcript{flex:1;min-height:0;display:flex;flex-direction:column;background:#fff;border:1px solid rgba(26,22,18,.08);border-radius:.85rem;overflow:hidden}.mp-doubt-voice-panel .chapter-parts-agent-voice__transcript-scroll{flex:1;min-height:0;overflow-y:auto;padding:.65rem .75rem}.mp-doubt-voice-panel .chapter-parts-agent-controls-card{flex-shrink:0;margin:.65rem .85rem .85rem;background:var(--mp-chat-bg);border:1px solid rgba(26,22,18,.08);border-radius:14px}.mp-doubt-voice-panel .chapter-parts-agent-voice__hint{font-size:.74rem;color:#64748b;text-align:center;margin:.35rem 0 0}.mp-chapters-hub{--mp-hub-gold: #ffc02e;--mp-hub-gold-dark: #e9a844;--mp-hub-ink: #1a1612;--mp-hub-muted: #78716c;--mp-hub-line: #ebe3d6;--mp-hub-page: #f4eee4;--mp-hub-card: #fffdf8;max-width:42rem;margin:0 auto;font-family:var(--mp-font-ui, "Nunito", "Inter", sans-serif);color:var(--mp-hub-ink)}.mp-chapters-hub__hero{background:var(--mp-hub-card);border:1px solid var(--mp-hub-line);border-radius:1.25rem;padding:1.75rem 1.5rem 1.5rem;text-align:center;box-shadow:0 8px 28px #1a14100f;margin-bottom:1.25rem}.mp-chapters-hub__badge{display:inline-block;padding:.28rem .75rem;border-radius:999px;background:linear-gradient(145deg,#ffd34a 0%,var(--mp-hub-gold-dark) 100%);font-size:.68rem;font-weight:800;letter-spacing:.06em;text-transform:uppercase;color:#1a1410;margin-bottom:.85rem}.mp-chapters-hub__title{margin:0;font-family:var(--mp-font-display, "Libre Baskerville", Georgia, serif);font-size:clamp(1.85rem,5vw,2.35rem);font-weight:700;line-height:1.15;letter-spacing:-.02em}.mp-chapters-hub__subtitle{margin:.55rem 0 1.15rem;font-size:.92rem;color:var(--mp-hub-muted);font-weight:500}.mp-chapters-hub__cta{display:inline-flex;align-items:center;justify-content:center;min-height:2.65rem;padding:0 1.35rem;border:none;border-radius:999px;background:linear-gradient(145deg,#ffd34a 0%,var(--mp-hub-gold-dark) 100%);color:#1a1410;font-size:.92rem;font-weight:800;cursor:pointer;box-shadow:0 4px 14px #d98a2f38;transition:transform .15s ease,box-shadow .15s ease}.mp-chapters-hub__cta:hover{transform:translateY(-1px);box-shadow:0 6px 18px #d98a2f47}.mp-chapters-hub__tabs{display:flex;justify-content:center;gap:.5rem;margin-bottom:1.15rem;flex-wrap:wrap}.mp-chapters-hub__tab{min-height:2.25rem;padding:0 1.1rem;border-radius:999px;border:1px solid var(--mp-hub-line);background:#fff;color:var(--mp-hub-muted);font-size:.88rem;font-weight:700;cursor:pointer;transition:background .15s,color .15s,border-color .15s}.mp-chapters-hub__tab.is-active{background:linear-gradient(145deg,#ffd34a 0%,var(--mp-hub-gold-dark) 100%);border-color:transparent;color:#1a1410}.mp-chapters-hub__list{display:flex;flex-direction:column;gap:1rem}.mp-chapter-card{background:var(--mp-hub-card);border:1px solid var(--mp-hub-line);border-radius:1.15rem;overflow:hidden;box-shadow:0 6px 22px #1a14100d}.mp-chapter-card__head{padding:1.15rem 1.25rem 1rem}.mp-chapter-card__badge{display:inline-block;padding:.22rem .6rem;border-radius:999px;background:#ffc02e59;font-size:.62rem;font-weight:800;letter-spacing:.05em;text-transform:uppercase;color:#6b4e00;margin-bottom:.55rem}.mp-chapter-card__title{margin:0;font-family:var(--mp-font-display, "Libre Baskerville", Georgia, serif);font-size:1.45rem;font-weight:700;line-height:1.2}.mp-chapter-card__desc{margin:.55rem 0 0;font-size:.88rem;line-height:1.5;color:var(--mp-hub-muted);text-align:center}.mp-chapter-card__meta{display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:.35rem .5rem;margin-top:.85rem;font-size:.78rem;color:var(--mp-hub-muted)}.mp-chapter-card__link{border:none;background:none;padding:0;font:inherit;font-weight:700;color:#2563eb;text-decoration:underline;cursor:pointer}.mp-chapter-card__nodes{border-top:1px solid var(--mp-hub-line)}.mp-chapter-node-row{display:grid;grid-template-columns:auto 1fr auto;gap:.75rem;align-items:start;padding:.95rem 1.15rem;border-bottom:1px solid var(--mp-hub-line)}.mp-chapter-node-row:last-child{border-bottom:none}.mp-chapter-node-row__index{width:1.65rem;height:1.65rem;border-radius:.35rem;background:#f3f0ea;display:flex;align-items:center;justify-content:center;font-size:.78rem;font-weight:800;color:var(--mp-hub-muted);flex-shrink:0}.mp-chapter-node-row__title{margin:0;font-size:.92rem;font-weight:800;line-height:1.3}.mp-chapter-node-row__text{margin:.2rem 0 0;font-size:.8rem;line-height:1.45;color:var(--mp-hub-muted)}.mp-chapter-node-row__open{align-self:center;min-height:2rem;padding:0 .85rem;border:none;border-radius:999px;background:linear-gradient(145deg,#ffd34a 0%,var(--mp-hub-gold-dark) 100%);color:#1a1410;font-size:.82rem;font-weight:800;cursor:pointer;white-space:nowrap}.mp-chapters-hub__loading,.mp-chapters-hub__empty{text-align:center;padding:2rem 1rem;color:var(--mp-hub-muted);font-size:.92rem}.mp-chapter-learn{--mp-learn-gold: #ffc02e;--mp-learn-gold-dark: #e9a844;--mp-learn-ink: #1a1612;--mp-learn-muted: #7a7168;--mp-learn-line: #ebe3d6;--mp-learn-page: #f4eee4;--mp-learn-card: #fffdf8;--mp-learn-surface: rgba(255, 253, 248, .94);--mp-learn-shadow: 0 4px 20px rgba(26, 22, 18, .06);--mp-learn-radius: 16px;--mp-learn-radius-sm: 10px;--mp-learn-max: 58rem;--mp-space-1: .25rem;--mp-space-2: .5rem;--mp-space-3: .75rem;--mp-space-4: 1rem;--mp-space-5: 1.25rem;--mp-space-6: 1.5rem;--mp-font-display: "Fraunces", Georgia, serif;--mp-font-ui: "Source Sans 3", system-ui, sans-serif;min-height:100vh;height:100dvh;max-height:100dvh;overflow:hidden;display:flex;flex-direction:column;color:var(--mp-learn-ink);font-family:var(--mp-font-ui);background:linear-gradient(180deg,#fbf6ec 0%,var(--mp-learn-page) 38%)}.mp-chapter-learn__header{flex-shrink:0;display:flex;flex-direction:column;gap:0;padding:0;border-bottom:none;background:var(--mp-learn-surface);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);box-shadow:0 1px #ebe3d6e6}.mp-chapter-learn__header-row{display:flex;align-items:center;justify-content:space-between;gap:var(--mp-space-3);padding:.65rem var(--mp-space-4) .55rem}.mp-chapter-learn__header-start{flex:1;min-width:0;display:flex;align-items:center;gap:var(--mp-space-3)}.mp-chapter-learn__header-copy{flex:1;min-width:0}.mp-chapter-learn__header-back{flex-shrink:0;width:2rem;height:2rem;border:none;border-radius:999px;background:#1a16120f;font-size:.95rem;line-height:1;cursor:pointer;color:var(--mp-learn-muted);transition:background .15s ease,color .15s ease}.mp-chapter-learn__header-back:hover{background:#1a16121a;color:var(--mp-learn-ink)}.mp-chapter-learn__header-back:focus-visible{outline:2px solid var(--mp-learn-gold);outline-offset:2px}.mp-chapter-learn__progress{width:100%;height:5px;border-radius:0;background:#ebe3d6d9;overflow:hidden}.mp-chapter-learn__progress-fill{height:100%;border-radius:inherit;background:linear-gradient(90deg,#ffd34a 0%,var(--mp-learn-gold) 55%,#ff9f1a 100%);box-shadow:0 0 10px #ffc02e73;transition:width .3s ease}.mp-chapter-learn__shell{flex:1;min-height:0;display:flex;overflow:hidden}.mp-chapter-learn__loading{flex:1;display:flex;align-items:center;justify-content:center;padding:var(--mp-space-8)}.mp-chapter-learn__nav-btn.is-active{background:#ffc02e38;border-color:#ffc02e8c;color:var(--mp-learn-ink)}.mp-chapter-learn__title{margin:0;font-family:var(--mp-font-ui);font-size:1.08rem;font-weight:800;line-height:1.22;letter-spacing:-.02em}.mp-chapter-learn__status{margin:.12rem 0 0;font-size:.76rem;font-weight:600;color:var(--mp-learn-muted)}.mp-chapter-learn__status-sep{margin:0 .25rem;opacity:.55}.mp-chapter-learn__nav-btn{min-height:2rem;padding:0 var(--mp-space-3);border-radius:999px;border:1px solid var(--mp-learn-line);background:var(--mp-learn-card);font-size:.78rem;font-weight:700;color:var(--mp-learn-muted);cursor:pointer;white-space:nowrap;transition:background .15s ease,border-color .15s ease,color .15s ease}.mp-chapter-learn__nav-btn:hover{color:var(--mp-learn-ink);border-color:#d9cbb8}.mp-chapter-learn__nav-btn:focus-visible{outline:2px solid var(--mp-learn-gold);outline-offset:2px}.mp-chapter-learn__body{flex:1;min-height:0;min-width:0;display:flex;flex-direction:column;width:100%;max-width:none;margin:0;padding:var(--mp-space-3) var(--mp-space-3) 0;box-sizing:border-box}.mp-chapter-learn__chat{flex:1;min-height:0;display:flex;flex-direction:column;overflow:hidden}.mp-chapter-learn__chat .chapter-parts-agent-chat-panel__main,.mp-chapter-learn__chat .mp-doubt-chat-panel--page{flex:1;min-height:0;display:flex;flex-direction:column;overflow:hidden;border:none;border-radius:0;background:transparent}.mp-chapter-learn__chat .mp-doubt-chat-panel--page .mp-doubt-chat-messages{flex:1;min-height:0;overflow-x:hidden;overflow-y:auto;-webkit-overflow-scrolling:touch;display:flex;flex-direction:column;gap:var(--mp-space-4);padding:var(--mp-space-2) 0 var(--mp-space-4);background:transparent;scroll-padding-top:var(--mp-space-3);scrollbar-gutter:stable;box-sizing:border-box}.mp-chapter-learn__chat .mp-doubt-chat-msg--bare-slide,.mp-chapter-learn__chat .mp-doubt-chat-msg--with-slide{width:100%;max-width:100%;margin:0;padding:0 0 var(--mp-space-3);box-sizing:border-box;overflow:visible}.mp-chapter-learn__chat .mp-tutor-chat-slide--bare{width:100%;max-width:none;border:none;border-radius:0;overflow:visible;background:transparent;box-shadow:none}.mp-chapter-learn__chat .mp-tutor-chat-slide--bare .verbatim-html-scroll-wrap,.mp-chapter-learn__chat .mp-tutor-chat-slide--bare .agent-whiteboard__verbatim-frame,.mp-chapter-learn__chat .mp-tutor-chat-slide--bare .agent-whiteboard__seed--verbatim{width:100%!important;max-width:none!important;min-width:0;pointer-events:auto!important}.mp-chapter-learn__chat .mp-doubt-chat-msg--with-slide:before,.mp-chapter-learn__chat .mp-doubt-chat-msg--ai:not(.mp-doubt-chat-msg--with-slide):before,.mp-chapter-learn__chat .mp-doubt-chat-msg--user:before,.mp-chapter-learn__chat .mp-doubt-chat-msg__time{display:none!important}.mp-chapter-learn__chat .mp-doubt-chat-msg--ai:not(.mp-doubt-chat-msg--with-slide) .mp-doubt-chat-msg__bubble{background:var(--mp-learn-card);border:1px solid var(--mp-learn-line);border-radius:var(--mp-learn-radius-sm);padding:var(--mp-space-3) var(--mp-space-4);font-size:.92rem;line-height:1.5;box-shadow:var(--mp-learn-shadow)}.mp-chapter-learn__chat .mp-doubt-chat-msg--user{align-self:flex-end;max-width:min(calc(100% - var(--mp-space-2)),24rem);margin-right:0;margin-top:var(--mp-space-2);margin-bottom:var(--mp-space-1);scroll-margin-top:var(--mp-space-3)}.mp-chapter-learn__chat .mp-doubt-chat-msg--ai:not(.mp-doubt-chat-msg--with-slide):not(.mp-doubt-chat-msg--bare-slide){align-self:flex-start;max-width:min(calc(100% - var(--mp-space-2)),28rem);margin-top:0;margin-bottom:var(--mp-space-2);scroll-margin-top:var(--mp-space-3)}.mp-chapter-learn__chat .mp-doubt-chat-msg--user .mp-doubt-chat-msg__bubble{background:linear-gradient(145deg,#ffe066,#ffc02e);color:#1a1612;border:2px solid #1a1612;border-radius:1.15rem 1.15rem .35rem;padding:.7rem 1rem;font-size:.92rem;font-weight:800;line-height:1.42;box-shadow:3px 3px #1a1612d1}.mp-chapter-learn__chat .mp-chapter-nav-loading{display:inline-flex;align-items:center;gap:.55rem;margin:.15rem 0 .65rem;padding:.35rem .15rem;align-self:flex-start}.mp-chapter-learn__chat .mp-chapter-nav-loading__icon{flex-shrink:0;animation:mp-chapter-nav-icon-pulse 1.2s ease-in-out infinite}.mp-chapter-learn__chat .mp-chapter-nav-loading__dots{display:inline-flex;align-items:center;gap:.28rem}.mp-chapter-learn__chat .mp-chapter-nav-loading__dots span{width:.38rem;height:.38rem;border-radius:50%;background:#d97706;animation:mp-chapter-nav-dot 1.2s ease-in-out infinite}.mp-chapter-learn__chat .mp-chapter-nav-loading__dots span:nth-child(2){animation-delay:.15s}.mp-chapter-learn__chat .mp-chapter-nav-loading__dots span:nth-child(3){animation-delay:.3s}@keyframes mp-chapter-nav-icon-pulse{0%,to{transform:scale(1);opacity:.92}50%{transform:scale(1.04);opacity:1}}@keyframes mp-chapter-nav-dot{0%,80%,to{opacity:.35;transform:scale(.85)}40%{opacity:1;transform:scale(1)}}.mp-chapter-learn__chat .mp-doubt-chat-msg--with-slide,.mp-chapter-learn__chat .mp-doubt-chat-msg--bare-slide{scroll-margin-top:var(--mp-space-3)}.mp-chapter-learn__chat .mp-doubt-chat-msg--ai,.mp-chapter-learn__chat .mp-doubt-chat-msg--with-slide{align-self:stretch}.mp-chapter-learn__chat .mp-doubt-chat-footer--docked,.mp-chapter-learn__chat .mp-doubt-chat-composer--page{width:100%;padding:0;background:transparent;border:none}.mp-chapter-learn__footer{flex-shrink:0;padding:var(--mp-space-2) var(--mp-space-4) max(var(--mp-space-3),env(safe-area-inset-bottom,0px));background:#fffdf8f5;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-top:1px solid var(--mp-learn-line)}.mp-chapter-learn__footer-inner{width:100%;max-width:none;margin:0}.mp-chapter-learn.is-help-open .mp-chapter-learn__footer{background:#fdfbf7f5}.mp-chapter-learn__chat .mp-chapter-explore{margin:.5rem 0 1.25rem;padding:1rem 1.05rem 1.05rem;border:1px solid #e8dfd2;border-radius:14px;background:#fff;box-shadow:0 8px 24px #1a16120f;overflow:visible}.mp-chapter-explore__head{display:flex;align-items:flex-start;gap:.65rem;margin-bottom:.85rem}.mp-chapter-explore__spark{flex-shrink:0;width:2rem;height:2rem;border-radius:.65rem;border:none;background:#ffc02e;display:inline-flex;align-items:center;justify-content:center;font-size:.95rem;font-weight:900;box-shadow:none}.mp-chapter-explore__kicker{margin:0;font-size:.92rem;font-weight:800;letter-spacing:-.02em;color:#1a1612}.mp-chapter-explore__sub{margin:.15rem 0 0;font-size:.78rem;font-weight:600;color:#7a7168}.mp-chapter-explore__list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:.55rem}.mp-chapter-explore__btn{display:flex;align-items:center;gap:.65rem;width:100%;min-height:3rem;padding:.65rem .85rem;border:1px solid #e8dfd2;border-radius:12px;background:#f3f3f3;color:#1a1612;font:inherit;text-align:left;cursor:pointer;transition:border-color .12s ease,background .12s ease}.mp-chapter-explore__btn:hover:not(:disabled){border-color:#d9cbb8;background:#faf8f5}.mp-chapter-explore__btn:focus-visible{outline:2px solid #ffc02e;outline-offset:2px}.mp-chapter-explore__btn.is-primary{border-color:#ffc02ebf;background:#fff6df}.mp-chapter-explore__btn.is-primary .mp-chapter-explore__icon{background:#ffc02e;border-color:#ffc02e}.mp-chapter-explore--next .mp-chapter-explore__spark{background:#ffc02e}.mp-chapter-explore__btn.is-active,.mp-chapter-explore__btn:disabled{opacity:.72;cursor:wait;transform:none}.mp-chapter-explore__icon{flex-shrink:0;width:1.85rem;height:1.85rem;border-radius:999px;border:none;background:#fff6df;display:inline-flex;align-items:center;justify-content:center;font-size:.82rem;font-weight:900;color:#7a6010}.mp-chapter-explore__label{flex:1;min-width:0;font-size:.88rem;font-weight:700;line-height:1.35}.mp-chapter-explore__arrow{flex-shrink:0;font-size:1rem;font-weight:900;color:#7a6010;opacity:.85}.mp-chapter-learn__footer-actions{display:flex;align-items:stretch;gap:var(--mp-space-3);width:100%}.mp-chapter-learn__composer-bar{flex:1;min-width:0;display:flex;align-items:center;min-height:2.75rem;background:var(--mp-learn-card);border:1px solid var(--mp-learn-line);border-radius:999px;box-shadow:var(--mp-learn-shadow);padding:.2rem .25rem .2rem var(--mp-space-4);transition:border-color .15s ease,box-shadow .15s ease}.mp-chapter-learn__composer-bar:focus-within{border-color:#ffc02ea6;box-shadow:0 0 0 3px #ffc02e26,var(--mp-learn-shadow)}.mp-chapter-learn__suggest{flex-shrink:0;align-self:center;max-width:min(42%,20rem);min-height:2.75rem;padding:0 var(--mp-space-4);border:1px solid rgba(255,192,46,.55);border-radius:999px;background:var(--mp-learn-gold);color:#1a1410;font-size:.88rem;font-weight:700;text-align:center;cursor:pointer;line-height:1.25;white-space:normal;box-shadow:none;transition:filter .15s ease,opacity .15s ease}.mp-chapter-learn__suggest:hover:not(:disabled){filter:brightness(1.03)}.mp-chapter-learn__suggest:focus-visible{outline:2px solid var(--mp-learn-ink);outline-offset:2px}.mp-chapter-learn__suggest:disabled{opacity:.55;cursor:wait;transform:none}.mp-chapter-learn__composer-host{flex:1;min-width:0}.mp-chapter-learn__composer-host .mp-doubt-chat-footer--docked,.mp-chapter-learn__composer-host .mp-doubt-chat-composer--page{width:100%;margin:0;padding:0;background:transparent;border:none;box-shadow:none;gap:var(--mp-space-2)}.mp-chapter-learn__composer-host .mp-doubt-chat-input{flex:1;min-width:0;min-height:2.35rem;border:none;background:transparent;box-shadow:none;padding:.55rem 0;font-size:.94rem;line-height:1.35;color:var(--mp-learn-ink)}.mp-chapter-learn__composer-host .mp-doubt-chat-input::-moz-placeholder{color:#9a9086}.mp-chapter-learn__composer-host .mp-doubt-chat-input::placeholder{color:#9a9086}.mp-chapter-learn__composer-host .mp-doubt-chat-input:focus{outline:none}.mp-chapter-learn__composer-host .mp-doubt-chat-send--ask{min-width:4rem;height:2.35rem;border-radius:999px;border:none;font-size:.86rem;font-weight:700;padding:0 var(--mp-space-4);flex-shrink:0;background:linear-gradient(145deg,#ffd34a 0%,var(--mp-learn-gold-dark) 100%);color:#1a1410;box-shadow:none;transition:filter .15s ease,opacity .15s ease}.mp-chapter-learn__composer-host .mp-doubt-chat-send--ask:hover:not(:disabled){filter:brightness(1.04)}.mp-chapter-learn__composer-host .mp-doubt-chat-send--ask:focus-visible{outline:2px solid var(--mp-learn-ink);outline-offset:2px}.mp-chapter-learn__composer-host .mp-doubt-chat-send--ask:disabled{opacity:.45}.mp-chapter-learn__nav-error{width:100%;margin:0 0 var(--mp-space-2);padding:var(--mp-space-2) var(--mp-space-3);border-radius:var(--mp-learn-radius-sm);background:#fdeef1;color:#8a3040;font-size:.8rem;font-weight:600}.mp-chapter-learn__footer-branch{display:flex;align-items:center;gap:var(--mp-space-3);width:100%}.mp-chapter-learn__footer-branch .mp-chapter-learn__composer-bar{flex:1;min-width:0}.mp-chapter-learn__back-lesson{display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;min-height:2.75rem;padding:0 var(--mp-space-4);border:1px solid var(--mp-learn-line);border-radius:999px;background:var(--mp-learn-card);font-size:.88rem;font-weight:700;cursor:pointer;color:var(--mp-learn-ink);box-shadow:none;transition:background .15s ease,border-color .15s ease}.mp-chapter-learn__back-lesson:hover{background:#faf7f2;border-color:#d9cbb8}.mp-chapter-learn__back-lesson:focus-visible{outline:2px solid var(--mp-learn-gold);outline-offset:2px}.mp-chapter-learn__topics-rail{flex-shrink:0;width:min(17.5rem,30vw);border-left:2px solid rgba(26,22,18,.08);background:linear-gradient(180deg,#fffdf8fa,#f8f2ffeb);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);display:flex;flex-direction:column;overflow:hidden}.mp-chapter-learn__topics-head{padding:var(--mp-space-4) var(--mp-space-4) var(--mp-space-3);border-bottom:1px solid var(--mp-learn-line)}.mp-chapter-learn__topics-title{margin:0;font-family:var(--mp-font-ui);font-size:.92rem;font-weight:800;letter-spacing:-.01em}.mp-chapter-learn__topics-meta{margin:.2rem 0 0;font-size:.72rem;font-weight:700;color:var(--mp-learn-muted)}.mp-chapter-learn__topics-list{list-style:none;margin:0;padding:var(--mp-space-3);overflow-y:auto;flex:1}.mp-chapter-learn__topic-item{margin-bottom:var(--mp-space-2)}.mp-chapter-learn__topic-btn{display:flex;align-items:flex-start;gap:var(--mp-space-2);width:100%;padding:.65rem .75rem;border:2px solid transparent;border-radius:var(--mp-learn-radius-sm);background:#ffffff8c;text-align:left;cursor:pointer;font:inherit;color:var(--mp-learn-ink);transition:transform .12s ease,box-shadow .12s ease,border-color .12s ease,background .12s ease}.mp-chapter-learn__topic-btn:hover{background:#fff;border-color:#1a16121a;box-shadow:2px 2px #1a161214}.mp-chapter-learn__topic-btn:focus-visible{outline:2px solid var(--mp-learn-gold);outline-offset:1px}.mp-chapter-learn__topic-btn--static{cursor:default;pointer-events:none}.mp-chapter-learn__topic-item.is-current .mp-chapter-learn__topic-btn{background:#fff;border-color:#ffc02ea6;box-shadow:3px 3px #1a16121f}.mp-chapter-learn__topic-item.is-mastered .mp-chapter-learn__topic-btn{background:linear-gradient(145deg,#fffdf8,#fff6df);border-color:#ffc02e73}.mp-chapter-learn__topic-index{flex-shrink:0;width:1.55rem;height:1.55rem;border-radius:.45rem;border:2px solid rgba(26,22,18,.12);background:#fff;display:flex;align-items:center;justify-content:center;font-size:.72rem;font-weight:800;color:var(--mp-learn-muted)}.mp-chapter-learn__topic-item.is-mastered .mp-chapter-learn__topic-index{background:#ffc02e;border-color:#1a1612;color:#1a1612}.mp-chapter-learn__topic-body{min-width:0;flex:1;display:flex;flex-direction:column;gap:.2rem}.mp-chapter-learn__topic-label{font-size:.82rem;font-weight:700;line-height:1.35}.mp-chapter-learn__topic-status-row{display:flex;align-items:center;gap:.35rem;flex-wrap:wrap}.mp-chapter-learn__topic-stars{display:inline-flex;gap:.05rem;line-height:1}.mp-chapter-learn__topic-star{font-size:.78rem;color:#7a716859}.mp-chapter-learn__topic-star.is-filled{color:#ffc02e;text-shadow:0 1px 0 rgba(26,22,18,.15)}.mp-chapter-learn__topic-stars.is-mastered .mp-chapter-learn__topic-star.is-filled{color:#ffb800}.mp-chapter-learn__topic-status{font-size:.64rem;font-weight:800;letter-spacing:.04em;text-transform:uppercase;color:var(--mp-learn-muted)}.mp-chapter-learn__topic-item.is-mastered .mp-chapter-learn__topic-status{color:#7a6010}.mp-chapter-learn__topic-badge{flex-shrink:0;width:1.35rem;height:1.35rem;border-radius:999px;border:2px solid #1a1612;background:#ffc02e;display:inline-flex;align-items:center;justify-content:center;font-size:.72rem;font-weight:900;line-height:1;box-shadow:2px 2px #1a1612bf}.mp-chapter-learn__rail{flex-shrink:0;width:min(15rem,30vw);border-left:1px solid var(--mp-learn-line);background:var(--mp-learn-surface);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);display:flex;flex-direction:column;overflow:hidden}.mp-chapter-learn__rail-head{display:flex;align-items:center;justify-content:space-between;padding:var(--mp-space-3) var(--mp-space-4);border-bottom:1px solid var(--mp-learn-line)}.mp-chapter-learn__rail-title{margin:0;font-family:var(--mp-font-display);font-size:.9rem;font-weight:700}.mp-chapter-learn__rail-close{border:none;background:none;width:1.75rem;height:1.75rem;border-radius:999px;font-size:1.15rem;line-height:1;cursor:pointer;color:var(--mp-learn-muted);transition:background .15s ease,color .15s ease}.mp-chapter-learn__rail-close:hover{background:#1a16120f;color:var(--mp-learn-ink)}.mp-chapter-learn__rail-list{list-style:none;margin:0;padding:var(--mp-space-3);overflow-y:auto;flex:1}.mp-chapter-learn__rail-item{margin-bottom:var(--mp-space-2)}.mp-chapter-learn__rail-btn{display:flex;align-items:flex-start;gap:var(--mp-space-2);width:100%;padding:var(--mp-space-2) var(--mp-space-3);border:1px solid transparent;border-radius:var(--mp-learn-radius-sm);background:transparent;text-align:left;cursor:pointer;font:inherit;color:var(--mp-learn-ink);transition:background .15s ease,border-color .15s ease}.mp-chapter-learn__rail-btn:hover:not(:disabled){background:#ffffffb3;border-color:var(--mp-learn-line)}.mp-chapter-learn__rail-btn:focus-visible{outline:2px solid var(--mp-learn-gold);outline-offset:1px}.mp-chapter-learn__rail-item.is-current .mp-chapter-learn__rail-btn{background:#fff6dfe6;border-color:#ffc02e73}.mp-chapter-learn__rail-item.is-done .mp-chapter-learn__rail-index{background:#eef8ef;color:#2a6a3a}.mp-chapter-learn__rail-index{flex-shrink:0;width:1.5rem;height:1.5rem;border-radius:.4rem;background:#f3f0ea;display:flex;align-items:center;justify-content:center;font-size:.72rem;font-weight:800;color:var(--mp-learn-muted)}.mp-chapter-learn__rail-body{min-width:0;display:flex;flex-direction:column;gap:.1rem}.mp-chapter-learn__rail-badge{font-size:.58rem;font-weight:800;letter-spacing:.04em;text-transform:uppercase;color:var(--mp-learn-muted)}.mp-chapter-learn__rail-label{font-size:.78rem;font-weight:600;line-height:1.35}@media (max-width: 900px){.mp-chapter-learn__body{padding:var(--mp-space-3) var(--mp-space-4) 0}.mp-chapter-learn__footer{padding:var(--mp-space-3) var(--mp-space-4) max(var(--mp-space-4),env(safe-area-inset-bottom,0px))}.mp-chapter-learn__topics-rail{width:min(14rem,34vw)}}@media (max-width: 720px){.mp-chapter-learn__header-row{padding:.55rem var(--mp-space-3) .45rem}.mp-chapter-learn__footer-actions,.mp-chapter-learn__footer-branch{flex-direction:column;align-items:stretch}.mp-chapter-learn__footer-branch .mp-chapter-learn__back-lesson{width:100%;justify-content:center}.mp-chapter-learn__suggest{max-width:none;width:100%}.mp-chapter-learn__composer-bar{border-radius:var(--mp-learn-radius-sm);min-height:3rem}.mp-chapter-learn.is-graph-open .mp-chapter-learn__rail{position:fixed;inset:auto 0 0 0;width:100%;max-height:42vh;z-index:30;border-left:none;border-top:1px solid var(--mp-learn-line);box-shadow:0 -8px 28px #1a14101f}.mp-chapter-learn__shell{flex-direction:column}.mp-chapter-learn__topics-rail{width:100%;max-height:10rem;flex-shrink:0;border-left:none;border-top:2px solid rgba(26,22,18,.08)}.mp-chapter-learn__topics-list{display:flex;flex-direction:row;gap:var(--mp-space-2);overflow-x:auto;overflow-y:hidden;padding-bottom:var(--mp-space-3)}.mp-chapter-learn__topic-item{flex:0 0 min(16rem,78vw);margin-bottom:0}}@media (max-width: 640px){.mp-chapter-learn__title{font-size:.92rem}.mp-chapter-learn__status{font-size:.72rem}}@font-face{font-display:block;font-family:KaTeX_AMS;font-style:normal;font-weight:400;src:url(/assets/KaTeX_AMS-Regular-BQhdFMY1.woff2) format("woff2"),url(/assets/KaTeX_AMS-Regular-DMm9YOAa.woff) format("woff"),url(/assets/KaTeX_AMS-Regular-DRggAlZN.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:700;src:url(/assets/KaTeX_Caligraphic-Bold-Dq_IR9rO.woff2) format("woff2"),url(/assets/KaTeX_Caligraphic-Bold-BEiXGLvX.woff) format("woff"),url(/assets/KaTeX_Caligraphic-Bold-ATXxdsX0.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Caligraphic-Regular-Di6jR-x-.woff2) format("woff2"),url(/assets/KaTeX_Caligraphic-Regular-CTRA-rTL.woff) format("woff"),url(/assets/KaTeX_Caligraphic-Regular-wX97UBjC.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Fraktur;font-style:normal;font-weight:700;src:url(/assets/KaTeX_Fraktur-Bold-CL6g_b3V.woff2) format("woff2"),url(/assets/KaTeX_Fraktur-Bold-BsDP51OF.woff) format("woff"),url(/assets/KaTeX_Fraktur-Bold-BdnERNNW.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Fraktur;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Fraktur-Regular-CTYiF6lA.woff2) format("woff2"),url(/assets/KaTeX_Fraktur-Regular-Dxdc4cR9.woff) format("woff"),url(/assets/KaTeX_Fraktur-Regular-CB_wures.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:normal;font-weight:700;src:url(/assets/KaTeX_Main-Bold-Cx986IdX.woff2) format("woff2"),url(/assets/KaTeX_Main-Bold-Jm3AIy58.woff) format("woff"),url(/assets/KaTeX_Main-Bold-waoOVXN0.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:italic;font-weight:700;src:url(/assets/KaTeX_Main-BoldItalic-DxDJ3AOS.woff2) format("woff2"),url(/assets/KaTeX_Main-BoldItalic-SpSLRI95.woff) format("woff"),url(/assets/KaTeX_Main-BoldItalic-DzxPMmG6.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:italic;font-weight:400;src:url(/assets/KaTeX_Main-Italic-NWA7e6Wa.woff2) format("woff2"),url(/assets/KaTeX_Main-Italic-BMLOBm91.woff) format("woff"),url(/assets/KaTeX_Main-Italic-3WenGoN9.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Main-Regular-B22Nviop.woff2) format("woff2"),url(/assets/KaTeX_Main-Regular-Dr94JaBh.woff) format("woff"),url(/assets/KaTeX_Main-Regular-ypZvNtVU.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Math;font-style:italic;font-weight:700;src:url(/assets/KaTeX_Math-BoldItalic-CZnvNsCZ.woff2) format("woff2"),url(/assets/KaTeX_Math-BoldItalic-iY-2wyZ7.woff) format("woff"),url(/assets/KaTeX_Math-BoldItalic-B3XSjfu4.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Math;font-style:italic;font-weight:400;src:url(/assets/KaTeX_Math-Italic-t53AETM-.woff2) format("woff2"),url(/assets/KaTeX_Math-Italic-DA0__PXp.woff) format("woff"),url(/assets/KaTeX_Math-Italic-flOr_0UB.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:normal;font-weight:700;src:url(/assets/KaTeX_SansSerif-Bold-D1sUS0GD.woff2) format("woff2"),url(/assets/KaTeX_SansSerif-Bold-DbIhKOiC.woff) format("woff"),url(/assets/KaTeX_SansSerif-Bold-CFMepnvq.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:italic;font-weight:400;src:url(/assets/KaTeX_SansSerif-Italic-C3H0VqGB.woff2) format("woff2"),url(/assets/KaTeX_SansSerif-Italic-DN2j7dab.woff) format("woff"),url(/assets/KaTeX_SansSerif-Italic-YYjJ1zSn.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:normal;font-weight:400;src:url(/assets/KaTeX_SansSerif-Regular-DDBCnlJ7.woff2) format("woff2"),url(/assets/KaTeX_SansSerif-Regular-CS6fqUqJ.woff) format("woff"),url(/assets/KaTeX_SansSerif-Regular-BNo7hRIc.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Script;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Script-Regular-D3wIWfF6.woff2) format("woff2"),url(/assets/KaTeX_Script-Regular-D5yQViql.woff) format("woff"),url(/assets/KaTeX_Script-Regular-C5JkGWo-.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size1;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Size1-Regular-mCD8mA8B.woff2) format("woff2"),url(/assets/KaTeX_Size1-Regular-C195tn64.woff) format("woff"),url(/assets/KaTeX_Size1-Regular-Dbsnue_I.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size2;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Size2-Regular-Dy4dx90m.woff2) format("woff2"),url(/assets/KaTeX_Size2-Regular-oD1tc_U0.woff) format("woff"),url(/assets/KaTeX_Size2-Regular-B7gKUWhC.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size3;font-style:normal;font-weight:400;src:url(data:font/woff2;base64,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) format("woff2"),url(/assets/KaTeX_Size3-Regular-CTq5MqoE.woff) format("woff"),url(/assets/KaTeX_Size3-Regular-DgpXs0kz.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size4;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Size4-Regular-Dl5lxZxV.woff2) format("woff2"),url(/assets/KaTeX_Size4-Regular-BF-4gkZK.woff) format("woff"),url(/assets/KaTeX_Size4-Regular-DWFBv043.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Typewriter;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Typewriter-Regular-CO6r4hn1.woff2) format("woff2"),url(/assets/KaTeX_Typewriter-Regular-C0xS9mPB.woff) format("woff"),url(/assets/KaTeX_Typewriter-Regular-D3Ib7_Hf.ttf) format("truetype")}.katex{font: 1.21em KaTeX_Main,Times New Roman,serif;line-height:1.2;position:relative;text-indent:0;text-rendering:auto}.katex *{-ms-high-contrast-adjust:none!important;border-color:currentColor}.katex .katex-version:after{content:"0.16.47"}.katex .katex-mathml{border:0;clip-path:inset(50%);height:1px;overflow:hidden;padding:0;position:absolute;width:1px}.katex .katex-html>.newline{display:block}.katex .base{position:relative;white-space:nowrap;width:-moz-min-content;width:min-content}.katex .base,.katex .strut{display:inline-block}.katex .textbf{font-weight:700}.katex .textit{font-style:italic}.katex .textrm{font-family:KaTeX_Main}.katex .textsf{font-family:KaTeX_SansSerif}.katex .texttt{font-family:KaTeX_Typewriter}.katex .mathnormal{font-family:KaTeX_Math;font-style:italic}.katex .mathit{font-family:KaTeX_Main;font-style:italic}.katex .mathrm{font-style:normal}.katex .mathbf{font-family:KaTeX_Main;font-weight:700}.katex .boldsymbol{font-family:KaTeX_Math;font-style:italic;font-weight:700}.katex .amsrm,.katex .mathbb,.katex .textbb{font-family:KaTeX_AMS}.katex .mathcal{font-family:KaTeX_Caligraphic}.katex .mathfrak,.katex .textfrak{font-family:KaTeX_Fraktur}.katex .mathboldfrak,.katex .textboldfrak{font-family:KaTeX_Fraktur;font-weight:700}.katex .mathtt{font-family:KaTeX_Typewriter}.katex .mathscr,.katex .textscr{font-family:KaTeX_Script}.katex .mathsf,.katex .textsf{font-family:KaTeX_SansSerif}.katex .mathboldsf,.katex .textboldsf{font-family:KaTeX_SansSerif;font-weight:700}.katex .mathitsf,.katex .mathsfit,.katex .textitsf{font-family:KaTeX_SansSerif;font-style:italic}.katex .mainrm{font-family:KaTeX_Main;font-style:normal}.katex .vlist-t{border-collapse:collapse;display:inline-table;table-layout:fixed}.katex .vlist-r{display:table-row}.katex .vlist{display:table-cell;position:relative;vertical-align:bottom}.katex .vlist>span{display:block;height:0;position:relative}.katex .vlist>span>span{display:inline-block}.katex .vlist>span>.pstrut{overflow:hidden;width:0}.katex .vlist-t2{margin-right:-2px}.katex .vlist-s{display:table-cell;font-size:1px;min-width:2px;vertical-align:bottom;width:2px}.katex .vbox{align-items:baseline;display:inline-flex;flex-direction:column}.katex .hbox{width:100%}.katex .hbox,.katex .thinbox{display:inline-flex;flex-direction:row}.katex .thinbox{max-width:0;width:0}.katex .msupsub{text-align:left}.katex .mfrac>span>span{text-align:center}.katex .mfrac .frac-line{border-bottom-style:solid;display:inline-block;width:100%}.katex .hdashline,.katex .hline,.katex .mfrac .frac-line,.katex .overline .overline-line,.katex .rule,.katex .underline .underline-line{min-height:1px}.katex .mspace{display:inline-block}.katex .smash{display:inline;line-height:0}.katex .clap,.katex .llap,.katex .rlap{position:relative;width:0}.katex .clap>.inner,.katex .llap>.inner,.katex .rlap>.inner{position:absolute}.katex .clap>.fix,.katex .llap>.fix,.katex .rlap>.fix{display:inline-block}.katex .llap>.inner{right:0}.katex .clap>.inner,.katex .rlap>.inner{left:0}.katex .clap>.inner>span{margin-left:-50%;margin-right:50%}.katex .rule{border:0 solid;display:inline-block;position:relative}.katex .hline,.katex .overline .overline-line,.katex .underline .underline-line{border-bottom-style:solid;display:inline-block;width:100%}.katex .hdashline{border-bottom-style:dashed;display:inline-block;width:100%}.katex .sqrt>.root{margin-left:.2777777778em;margin-right:-.5555555556em}.katex .fontsize-ensurer.reset-size1.size1,.katex .sizing.reset-size1.size1{font-size:1em}.katex .fontsize-ensurer.reset-size1.size2,.katex .sizing.reset-size1.size2{font-size:1.2em}.katex .fontsize-ensurer.reset-size1.size3,.katex .sizing.reset-size1.size3{font-size:1.4em}.katex .fontsize-ensurer.reset-size1.size4,.katex .sizing.reset-size1.size4{font-size:1.6em}.katex .fontsize-ensurer.reset-size1.size5,.katex .sizing.reset-size1.size5{font-size:1.8em}.katex .fontsize-ensurer.reset-size1.size6,.katex .sizing.reset-size1.size6{font-size:2em}.katex .fontsize-ensurer.reset-size1.size7,.katex .sizing.reset-size1.size7{font-size:2.4em}.katex .fontsize-ensurer.reset-size1.size8,.katex .sizing.reset-size1.size8{font-size:2.88em}.katex .fontsize-ensurer.reset-size1.size9,.katex .sizing.reset-size1.size9{font-size:3.456em}.katex .fontsize-ensurer.reset-size1.size10,.katex .sizing.reset-size1.size10{font-size:4.148em}.katex .fontsize-ensurer.reset-size1.size11,.katex .sizing.reset-size1.size11{font-size:4.976em}.katex .fontsize-ensurer.reset-size2.size1,.katex .sizing.reset-size2.size1{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size2.size2,.katex .sizing.reset-size2.size2{font-size:1em}.katex .fontsize-ensurer.reset-size2.size3,.katex .sizing.reset-size2.size3{font-size:1.1666666667em}.katex .fontsize-ensurer.reset-size2.size4,.katex .sizing.reset-size2.size4{font-size:1.3333333333em}.katex .fontsize-ensurer.reset-size2.size5,.katex .sizing.reset-size2.size5{font-size:1.5em}.katex .fontsize-ensurer.reset-size2.size6,.katex .sizing.reset-size2.size6{font-size:1.6666666667em}.katex .fontsize-ensurer.reset-size2.size7,.katex .sizing.reset-size2.size7{font-size:2em}.katex .fontsize-ensurer.reset-size2.size8,.katex .sizing.reset-size2.size8{font-size:2.4em}.katex .fontsize-ensurer.reset-size2.size9,.katex .sizing.reset-size2.size9{font-size:2.88em}.katex .fontsize-ensurer.reset-size2.size10,.katex .sizing.reset-size2.size10{font-size:3.4566666667em}.katex .fontsize-ensurer.reset-size2.size11,.katex .sizing.reset-size2.size11{font-size:4.1466666667em}.katex .fontsize-ensurer.reset-size3.size1,.katex .sizing.reset-size3.size1{font-size:.7142857143em}.katex .fontsize-ensurer.reset-size3.size2,.katex .sizing.reset-size3.size2{font-size:.8571428571em}.katex .fontsize-ensurer.reset-size3.size3,.katex .sizing.reset-size3.size3{font-size:1em}.katex .fontsize-ensurer.reset-size3.size4,.katex .sizing.reset-size3.size4{font-size:1.1428571429em}.katex .fontsize-ensurer.reset-size3.size5,.katex .sizing.reset-size3.size5{font-size:1.2857142857em}.katex .fontsize-ensurer.reset-size3.size6,.katex .sizing.reset-size3.size6{font-size:1.4285714286em}.katex .fontsize-ensurer.reset-size3.size7,.katex .sizing.reset-size3.size7{font-size:1.7142857143em}.katex .fontsize-ensurer.reset-size3.size8,.katex .sizing.reset-size3.size8{font-size:2.0571428571em}.katex .fontsize-ensurer.reset-size3.size9,.katex .sizing.reset-size3.size9{font-size:2.4685714286em}.katex .fontsize-ensurer.reset-size3.size10,.katex .sizing.reset-size3.size10{font-size:2.9628571429em}.katex .fontsize-ensurer.reset-size3.size11,.katex .sizing.reset-size3.size11{font-size:3.5542857143em}.katex .fontsize-ensurer.reset-size4.size1,.katex .sizing.reset-size4.size1{font-size:.625em}.katex .fontsize-ensurer.reset-size4.size2,.katex .sizing.reset-size4.size2{font-size:.75em}.katex .fontsize-ensurer.reset-size4.size3,.katex .sizing.reset-size4.size3{font-size:.875em}.katex .fontsize-ensurer.reset-size4.size4,.katex .sizing.reset-size4.size4{font-size:1em}.katex .fontsize-ensurer.reset-size4.size5,.katex .sizing.reset-size4.size5{font-size:1.125em}.katex .fontsize-ensurer.reset-size4.size6,.katex .sizing.reset-size4.size6{font-size:1.25em}.katex .fontsize-ensurer.reset-size4.size7,.katex .sizing.reset-size4.size7{font-size:1.5em}.katex .fontsize-ensurer.reset-size4.size8,.katex .sizing.reset-size4.size8{font-size:1.8em}.katex .fontsize-ensurer.reset-size4.size9,.katex .sizing.reset-size4.size9{font-size:2.16em}.katex .fontsize-ensurer.reset-size4.size10,.katex .sizing.reset-size4.size10{font-size:2.5925em}.katex .fontsize-ensurer.reset-size4.size11,.katex .sizing.reset-size4.size11{font-size:3.11em}.katex .fontsize-ensurer.reset-size5.size1,.katex .sizing.reset-size5.size1{font-size:.5555555556em}.katex .fontsize-ensurer.reset-size5.size2,.katex .sizing.reset-size5.size2{font-size:.6666666667em}.katex .fontsize-ensurer.reset-size5.size3,.katex .sizing.reset-size5.size3{font-size:.7777777778em}.katex .fontsize-ensurer.reset-size5.size4,.katex .sizing.reset-size5.size4{font-size:.8888888889em}.katex .fontsize-ensurer.reset-size5.size5,.katex .sizing.reset-size5.size5{font-size:1em}.katex .fontsize-ensurer.reset-size5.size6,.katex .sizing.reset-size5.size6{font-size:1.1111111111em}.katex .fontsize-ensurer.reset-size5.size7,.katex .sizing.reset-size5.size7{font-size:1.3333333333em}.katex .fontsize-ensurer.reset-size5.size8,.katex .sizing.reset-size5.size8{font-size:1.6em}.katex .fontsize-ensurer.reset-size5.size9,.katex .sizing.reset-size5.size9{font-size:1.92em}.katex .fontsize-ensurer.reset-size5.size10,.katex .sizing.reset-size5.size10{font-size:2.3044444444em}.katex .fontsize-ensurer.reset-size5.size11,.katex .sizing.reset-size5.size11{font-size:2.7644444444em}.katex .fontsize-ensurer.reset-size6.size1,.katex .sizing.reset-size6.size1{font-size:.5em}.katex .fontsize-ensurer.reset-size6.size2,.katex .sizing.reset-size6.size2{font-size:.6em}.katex .fontsize-ensurer.reset-size6.size3,.katex .sizing.reset-size6.size3{font-size:.7em}.katex .fontsize-ensurer.reset-size6.size4,.katex .sizing.reset-size6.size4{font-size:.8em}.katex .fontsize-ensurer.reset-size6.size5,.katex .sizing.reset-size6.size5{font-size:.9em}.katex .fontsize-ensurer.reset-size6.size6,.katex .sizing.reset-size6.size6{font-size:1em}.katex .fontsize-ensurer.reset-size6.size7,.katex .sizing.reset-size6.size7{font-size:1.2em}.katex .fontsize-ensurer.reset-size6.size8,.katex .sizing.reset-size6.size8{font-size:1.44em}.katex .fontsize-ensurer.reset-size6.size9,.katex .sizing.reset-size6.size9{font-size:1.728em}.katex .fontsize-ensurer.reset-size6.size10,.katex .sizing.reset-size6.size10{font-size:2.074em}.katex .fontsize-ensurer.reset-size6.size11,.katex .sizing.reset-size6.size11{font-size:2.488em}.katex .fontsize-ensurer.reset-size7.size1,.katex .sizing.reset-size7.size1{font-size:.4166666667em}.katex .fontsize-ensurer.reset-size7.size2,.katex .sizing.reset-size7.size2{font-size:.5em}.katex .fontsize-ensurer.reset-size7.size3,.katex .sizing.reset-size7.size3{font-size:.5833333333em}.katex .fontsize-ensurer.reset-size7.size4,.katex .sizing.reset-size7.size4{font-size:.6666666667em}.katex .fontsize-ensurer.reset-size7.size5,.katex .sizing.reset-size7.size5{font-size:.75em}.katex .fontsize-ensurer.reset-size7.size6,.katex .sizing.reset-size7.size6{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size7.size7,.katex .sizing.reset-size7.size7{font-size:1em}.katex .fontsize-ensurer.reset-size7.size8,.katex .sizing.reset-size7.size8{font-size:1.2em}.katex .fontsize-ensurer.reset-size7.size9,.katex .sizing.reset-size7.size9{font-size:1.44em}.katex .fontsize-ensurer.reset-size7.size10,.katex .sizing.reset-size7.size10{font-size:1.7283333333em}.katex .fontsize-ensurer.reset-size7.size11,.katex .sizing.reset-size7.size11{font-size:2.0733333333em}.katex .fontsize-ensurer.reset-size8.size1,.katex .sizing.reset-size8.size1{font-size:.3472222222em}.katex .fontsize-ensurer.reset-size8.size2,.katex .sizing.reset-size8.size2{font-size:.4166666667em}.katex .fontsize-ensurer.reset-size8.size3,.katex .sizing.reset-size8.size3{font-size:.4861111111em}.katex .fontsize-ensurer.reset-size8.size4,.katex .sizing.reset-size8.size4{font-size:.5555555556em}.katex .fontsize-ensurer.reset-size8.size5,.katex .sizing.reset-size8.size5{font-size:.625em}.katex .fontsize-ensurer.reset-size8.size6,.katex .sizing.reset-size8.size6{font-size:.6944444444em}.katex .fontsize-ensurer.reset-size8.size7,.katex .sizing.reset-size8.size7{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size8.size8,.katex .sizing.reset-size8.size8{font-size:1em}.katex .fontsize-ensurer.reset-size8.size9,.katex .sizing.reset-size8.size9{font-size:1.2em}.katex .fontsize-ensurer.reset-size8.size10,.katex .sizing.reset-size8.size10{font-size:1.4402777778em}.katex .fontsize-ensurer.reset-size8.size11,.katex .sizing.reset-size8.size11{font-size:1.7277777778em}.katex .fontsize-ensurer.reset-size9.size1,.katex .sizing.reset-size9.size1{font-size:.2893518519em}.katex .fontsize-ensurer.reset-size9.size2,.katex .sizing.reset-size9.size2{font-size:.3472222222em}.katex .fontsize-ensurer.reset-size9.size3,.katex .sizing.reset-size9.size3{font-size:.4050925926em}.katex .fontsize-ensurer.reset-size9.size4,.katex .sizing.reset-size9.size4{font-size:.462962963em}.katex .fontsize-ensurer.reset-size9.size5,.katex .sizing.reset-size9.size5{font-size:.5208333333em}.katex .fontsize-ensurer.reset-size9.size6,.katex .sizing.reset-size9.size6{font-size:.5787037037em}.katex .fontsize-ensurer.reset-size9.size7,.katex .sizing.reset-size9.size7{font-size:.6944444444em}.katex .fontsize-ensurer.reset-size9.size8,.katex .sizing.reset-size9.size8{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size9.size9,.katex .sizing.reset-size9.size9{font-size:1em}.katex .fontsize-ensurer.reset-size9.size10,.katex .sizing.reset-size9.size10{font-size:1.2002314815em}.katex .fontsize-ensurer.reset-size9.size11,.katex .sizing.reset-size9.size11{font-size:1.4398148148em}.katex .fontsize-ensurer.reset-size10.size1,.katex .sizing.reset-size10.size1{font-size:.2410800386em}.katex .fontsize-ensurer.reset-size10.size2,.katex .sizing.reset-size10.size2{font-size:.2892960463em}.katex .fontsize-ensurer.reset-size10.size3,.katex .sizing.reset-size10.size3{font-size:.337512054em}.katex .fontsize-ensurer.reset-size10.size4,.katex .sizing.reset-size10.size4{font-size:.3857280617em}.katex .fontsize-ensurer.reset-size10.size5,.katex .sizing.reset-size10.size5{font-size:.4339440694em}.katex .fontsize-ensurer.reset-size10.size6,.katex .sizing.reset-size10.size6{font-size:.4821600771em}.katex .fontsize-ensurer.reset-size10.size7,.katex .sizing.reset-size10.size7{font-size:.5785920926em}.katex .fontsize-ensurer.reset-size10.size8,.katex .sizing.reset-size10.size8{font-size:.6943105111em}.katex .fontsize-ensurer.reset-size10.size9,.katex .sizing.reset-size10.size9{font-size:.8331726133em}.katex .fontsize-ensurer.reset-size10.size10,.katex .sizing.reset-size10.size10{font-size:1em}.katex .fontsize-ensurer.reset-size10.size11,.katex .sizing.reset-size10.size11{font-size:1.1996142719em}.katex .fontsize-ensurer.reset-size11.size1,.katex .sizing.reset-size11.size1{font-size:.2009646302em}.katex .fontsize-ensurer.reset-size11.size2,.katex .sizing.reset-size11.size2{font-size:.2411575563em}.katex .fontsize-ensurer.reset-size11.size3,.katex .sizing.reset-size11.size3{font-size:.2813504823em}.katex .fontsize-ensurer.reset-size11.size4,.katex .sizing.reset-size11.size4{font-size:.3215434084em}.katex .fontsize-ensurer.reset-size11.size5,.katex .sizing.reset-size11.size5{font-size:.3617363344em}.katex .fontsize-ensurer.reset-size11.size6,.katex .sizing.reset-size11.size6{font-size:.4019292605em}.katex .fontsize-ensurer.reset-size11.size7,.katex .sizing.reset-size11.size7{font-size:.4823151125em}.katex .fontsize-ensurer.reset-size11.size8,.katex .sizing.reset-size11.size8{font-size:.578778135em}.katex .fontsize-ensurer.reset-size11.size9,.katex .sizing.reset-size11.size9{font-size:.6945337621em}.katex .fontsize-ensurer.reset-size11.size10,.katex .sizing.reset-size11.size10{font-size:.8336012862em}.katex .fontsize-ensurer.reset-size11.size11,.katex .sizing.reset-size11.size11{font-size:1em}.katex .delimsizing.size1{font-family:KaTeX_Size1}.katex .delimsizing.size2{font-family:KaTeX_Size2}.katex .delimsizing.size3{font-family:KaTeX_Size3}.katex .delimsizing.size4{font-family:KaTeX_Size4}.katex .delimsizing.mult .delim-size1>span{font-family:KaTeX_Size1}.katex .delimsizing.mult .delim-size4>span{font-family:KaTeX_Size4}.katex .nulldelimiter{display:inline-block;width:.12em}.katex .delimcenter,.katex .op-symbol{position:relative}.katex .op-symbol.small-op{font-family:KaTeX_Size1}.katex .op-symbol.large-op{font-family:KaTeX_Size2}.katex .accent>.vlist-t,.katex .op-limits>.vlist-t{text-align:center}.katex .accent .accent-body{position:relative}.katex .accent .accent-body:not(.accent-full){width:0}.katex .overlay{display:block}.katex .mtable .vertical-separator{display:inline-block;min-width:1px}.katex .mtable .arraycolsep{display:inline-block}.katex .mtable .col-align-c>.vlist-t{text-align:center}.katex .mtable .col-align-l>.vlist-t{text-align:left}.katex .mtable .col-align-r>.vlist-t{text-align:right}.katex .svg-align{text-align:left}.katex svg{fill:currentColor;stroke:currentColor;display:block;height:inherit;position:absolute;width:100%}.katex svg path{stroke:none}.katex svg{fill-rule:nonzero;fill-opacity:1;stroke-width:1;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1}.katex img{border-style:none;max-height:none;max-width:none;min-height:0;min-width:0}.katex .stretchy{display:block;overflow:hidden;position:relative;width:100%}.katex .stretchy:after,.katex .stretchy:before{content:""}.katex .hide-tail{overflow:hidden;position:relative;width:100%}.katex .halfarrow-left{left:0;overflow:hidden;position:absolute;width:50.2%}.katex .halfarrow-right{overflow:hidden;position:absolute;right:0;width:50.2%}.katex .brace-left{left:0;overflow:hidden;position:absolute;width:25.1%}.katex .brace-center{left:25%;overflow:hidden;position:absolute;width:50%}.katex .brace-right{overflow:hidden;position:absolute;right:0;width:25.1%}.katex .x-arrow-pad{padding:0 .5em}.katex .cd-arrow-pad{padding:0 .55556em 0 .27778em}.katex .mover,.katex .munder,.katex .x-arrow{text-align:center}.katex .boxpad{padding:0 .3em}.katex .fbox,.katex .fcolorbox{border:.04em solid;box-sizing:border-box}.katex .cancel-pad{padding:0 .2em}.katex .cancel-lap{margin-left:-.2em;margin-right:-.2em}.katex .sout{border-bottom-style:solid;border-bottom-width:.08em}.katex .angl{border-right:.049em solid;border-top:.049em solid;box-sizing:border-box;margin-right:.03889em}.katex .anglpad{padding:0 .03889em}.katex .eqn-num:before{content:"(" counter(katexEqnNo) ")";counter-increment:katexEqnNo}.katex .mml-eqn-num:before{content:"(" counter(mmlEqnNo) ")";counter-increment:mmlEqnNo}.katex .mtr-glue{width:50%}.katex .cd-vert-arrow{display:inline-block;position:relative}.katex .cd-label-left{display:inline-block;position:absolute;right:calc(50% + .3em);text-align:left}.katex .cd-label-right{display:inline-block;left:calc(50% + .3em);position:absolute;text-align:right}.katex-display{display:block;margin:1em 0;text-align:center}.katex-display>.katex{display:block;text-align:center;white-space:nowrap}.katex-display>.katex>.katex-html{display:block;position:relative}.katex-display>.katex>.katex-html>.tag{position:absolute;right:0}.katex-display.leqno>.katex>.katex-html>.tag{left:0;right:auto}.katex-display.fleqn>.katex{padding-left:2em;text-align:left}body{counter-reset:katexEqnNo mmlEqnNo}.chapter-parts-page{min-height:100vh;height:100vh;display:flex;flex-direction:column;overflow:hidden;background:linear-gradient(135deg,#fefce8,#fffbeb 45%,#fff);box-sizing:border-box}.chapter-parts-page__toolbar{flex-shrink:0;position:relative;z-index:900;max-width:1400px;width:100%;margin:0 auto;padding:var(--app-top-navbar-offset, calc(3.25rem + 1px) ) 1rem .25rem;min-height:0;overflow:visible}.chapter-parts-page__toolbar .chapter-parts-page__back-link{display:inline-flex;align-items:center;line-height:1.4}.chapter-parts-split-wrap{flex:1;min-height:0;max-width:1400px;width:100%;margin:0 auto;padding:0 1rem .75rem;display:flex;flex-direction:column;position:relative}.chapter-parts-split{position:relative;display:grid;grid-template-columns:22rem minmax(0,1fr);gap:1.25rem;flex:1;min-height:0;height:auto;max-height:none;align-items:stretch}.chapter-parts-split--collapsible-sidebar{grid-template-columns:minmax(0,1fr);gap:0}.chapter-parts-split--collapsible-sidebar.is-sidebar-open{grid-template-columns:22rem minmax(0,1fr);gap:1.25rem}.chapter-parts-split--collapsible-sidebar:not(.is-sidebar-open) .chapter-parts-split__sidebar{display:none}.chapter-parts-split--collapsible-sidebar .chapter-parts-split__sidebar-toggle{position:absolute;z-index:65;top:50%;left:0;transform:translateY(-50%);width:1.35rem;height:2.75rem;padding:0;border:1px solid var(--gray-200, #e5e7eb);border-left:none;border-radius:0 .45rem .45rem 0;background:#fff;color:#374151;box-shadow:0 2px 10px #0f172a1a;cursor:pointer;font-size:1.15rem;font-weight:700;line-height:1;display:flex;align-items:center;justify-content:center;transition:left .24s ease,transform .24s ease,border-radius .24s ease,box-shadow .24s ease}.chapter-parts-split--collapsible-sidebar .chapter-parts-split__sidebar-toggle:hover{background:#fffbeb;border-color:#ffc02e8c;box-shadow:0 4px 14px #0f172a1f}.chapter-parts-split--collapsible-sidebar .chapter-parts-split__sidebar-toggle:focus-visible{outline:2px solid var(--brand-color, #ffc02e);outline-offset:2px}.chapter-parts-split--collapsible-sidebar.is-sidebar-open .chapter-parts-split__sidebar-toggle{left:22rem;margin-left:.625rem;transform:translate(calc(-50% - .625rem),-50%);border-left:1px solid var(--gray-200, #e5e7eb);border-radius:999px}.chapter-parts-split--collapsible-sidebar:not(.is-sidebar-open) .chapter-parts-split__main{margin-left:.15rem}.chapter-parts-split--collapsible-sidebar:not(.is-sidebar-open) .chapter-parts-tutor-shell.is-main-column,.chapter-parts-split--collapsible-sidebar:not(.is-sidebar-open) .chapter-parts-agent-backdrop.is-main-column{grid-column:1}.chapter-parts-split__sidebar{display:flex;flex-direction:column;min-height:0;max-height:100%;background:#fff;border:1px solid var(--gray-200, #e5e7eb);border-radius:1rem;box-shadow:0 4px 20px #0000000f;overflow:hidden}.chapter-parts-split__sidebar-head{flex-shrink:0;padding:1rem 1rem .75rem;border-bottom:1px solid var(--gray-100, #f3f4f6);background:linear-gradient(180deg,#fffdf7,#fff)}.chapter-parts-split__sidebar-scroll{flex:1;min-height:0;overflow-y:auto;padding:.5rem .5rem .75rem}.chapter-parts-split__sidebar-foot{flex-shrink:0}.chapter-parts-content__meta-subchapter{font-weight:600;color:var(--gray-700, #374151)}.chapter-parts-nav-item{width:100%;text-align:left;display:flex;align-items:center;justify-content:space-between;gap:.5rem;padding:.75rem .85rem;margin-bottom:.35rem;border-radius:.65rem;border:1px solid transparent;background:var(--gray-50, #f9fafb);cursor:pointer;transition:background .15s ease,border-color .15s ease,box-shadow .15s ease}.chapter-parts-nav-item:hover{background:#fffef5;border-color:#fde68a}.chapter-parts-nav-item.is-active{background:linear-gradient(135deg,#fffbeb,#fff);border-color:var(--brand-color, #ffc02e);box-shadow:0 2px 10px #ffc02e40}.chapter-parts-nav-item__label{flex:1;min-width:0;font-size:.875rem;font-weight:500;color:var(--gray-900, #111827);line-height:1.35}.chapter-parts-nav-item__badge{flex-shrink:0;font-size:.6875rem;font-weight:700;text-transform:uppercase;letter-spacing:.04em;padding:.2rem .45rem;border-radius:.35rem;background:var(--brand-color, #ffc02e);color:#111827}.chapter-parts-split__main{display:flex;flex-direction:column;min-height:0;height:100%;max-height:100%;background:#fff;border:1px solid var(--gray-200, #e5e7eb);border-radius:1rem;box-shadow:0 4px 24px #00000012;overflow:hidden;position:relative;isolation:isolate}.chapter-parts-split__main>.chapter-parts-content{flex:1;min-height:0;overflow:hidden}.chapter-parts-content{flex:1;min-height:0;display:flex;flex-direction:column;overflow:hidden}.chapter-parts-content__header{flex-shrink:0;display:block!important;visibility:visible!important;padding:1rem 1.25rem;border-bottom:1px solid var(--gray-100, #f3f4f6);background:linear-gradient(90deg,rgba(255,192,46,.12) 0%,transparent 55%)}.chapter-parts-content__title{display:block!important;visibility:visible!important;height:auto!important;overflow:visible!important;font-size:1.25rem;font-weight:700;color:var(--gray-900, #111827);margin:0 0 .25rem;line-height:1.3;font-family:Inter,Plus Jakarta Sans,Segoe UI,sans-serif}.chapter-parts-content__meta{font-size:.75rem;font-weight:600;text-transform:uppercase;letter-spacing:.06em;color:var(--gray-500, #6b7280)}.chapter-parts-content__body{flex:1;min-height:0;overflow-x:hidden;overflow-y:auto;padding:1.25rem 1.5rem 1.5rem;-webkit-overflow-scrolling:touch}.chapter-parts-split__main:has(.chapter-parts-content--agent-html){background:transparent;border-color:transparent;box-shadow:none}.chapter-parts-content--agent-html .chapter-parts-content__body{padding:0;overflow-x:auto;overflow-y:auto}.chapter-parts-content--agent-html.chapter-parts-content--fixed-chrome .chapter-parts-content__body{padding-bottom:4.75rem}.chapter-parts-content--agent-html .chapter-part-rich--agent-html{background:transparent;animation:none;min-height:100%;pointer-events:auto;color:unset;font-family:unset;letter-spacing:unset;line-height:unset}.chapter-parts-content--agent-html .chapter-part-rich--agent-html .slide-agent-html{color:unset}.chapter-parts-content--agent-html .slide-agent-html,.chapter-parts-content--agent-html .slide-rich-doc.slide-agent-html{width:100%;min-height:100%;box-sizing:border-box;pointer-events:auto}.chapter-parts-content--agent-html .slide-agent-html button,.chapter-parts-content--agent-html .slide-agent-html [role=button],.chapter-parts-content--agent-html .slide-agent-html [onclick],.chapter-parts-content--agent-html .slide-agent-html [class*=btn],.chapter-parts-content--agent-html .slide-agent-html [class*=button],.chapter-parts-content--agent-html .slide-agent-html [class*=tab],.chapter-parts-content--agent-html .slide-agent-html [class*=pill],.chapter-parts-content--agent-html .slide-agent-html [class*=chip],.chapter-parts-content--agent-html .slide-agent-html [data-action],.chapter-parts-content--agent-html .slide-agent-html [data-tab],.chapter-parts-content--agent-html .slide-agent-html [data-exercise],.chapter-parts-content--agent-html .slide-agent-html a[href],.chapter-parts-content--agent-html .slide-agent-html input,.chapter-parts-content--agent-html .slide-agent-html select,.chapter-parts-content--agent-html .slide-agent-html textarea,.chapter-parts-content--agent-html .slide-agent-html [tabindex]:not([tabindex="-1"]),.chapter-parts-content--agent-html .slide-agent-html .flashcard,.chapter-parts-content--agent-html .slide-agent-html [data-flashcard],.chapter-parts-content--agent-html .slide-agent-html [data-flip-card],.chapter-parts-content--agent-html .slide-agent-html [data-agent-flashcard=true]{-webkit-text-fill-color:unset;background-clip:unset;-webkit-background-clip:unset;pointer-events:auto!important;cursor:pointer}.chapter-parts-content--fixed-chrome .chapter-parts-content__body{padding-bottom:3.35rem}.chapter-parts-split-wrap.has-slide-dock{padding-bottom:3.15rem}.chapter-parts-slide-dock{position:fixed;left:0;right:0;bottom:0;z-index:120;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:.5rem;padding:.35rem max(.75rem,env(safe-area-inset-right,0px)) calc(.35rem + env(safe-area-inset-bottom,0px)) .75rem;overflow:visible;background:linear-gradient(180deg,#ffffffe0,#fffffffa 45%);border-top:1px solid rgba(226,232,240,.95);box-shadow:0 -4px 16px #0f172a0f;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);pointer-events:auto}.chapter-parts-slide-dock__side{grid-column:1;min-width:0}.chapter-parts-slide-dock__side--end{position:absolute;right:0;bottom:0;top:0;display:flex;justify-content:flex-end;align-items:center;pointer-events:none}.chapter-parts-slide-dock__side--end .chapter-parts-slide-dock__doubt{pointer-events:auto;flex-shrink:0}.chapter-parts-slide-dock__nav{grid-column:2;display:flex;align-items:center;justify-content:center;gap:.45rem;min-width:0}.chapter-parts-slide-dock__nav-btn{display:inline-flex;align-items:center;justify-content:center;gap:.3rem;min-height:2rem;padding:.3rem .75rem;border-radius:999px;border:1px solid #e2e8f0;background:#fff;color:#334155;font-size:.75rem;font-weight:600;line-height:1;cursor:pointer;transition:background .15s ease,border-color .15s ease,color .15s ease,box-shadow .15s ease,transform .15s ease;box-shadow:0 1px 2px #0f172a0a}.chapter-parts-slide-dock__nav-btn:hover:not(:disabled){border-color:#cbd5e1;background:#f8fafc;transform:translateY(-1px)}.chapter-parts-slide-dock__nav-btn--next:not(:disabled){border-color:#fbbf24;background:linear-gradient(180deg,#ffe082,#ffc02e);color:#111827;box-shadow:0 2px 8px #ffc02e59}.chapter-parts-slide-dock__nav-btn--next:hover:not(:disabled){background:linear-gradient(180deg,#ffd54f,#ffb300);border-color:#f59e0b}.chapter-parts-slide-dock__nav-btn:disabled{opacity:.38;cursor:not-allowed;transform:none;box-shadow:none}.chapter-parts-slide-dock__nav-icon{font-size:.85rem;line-height:1}.chapter-parts-slide-dock__counter{flex-shrink:0;display:inline-flex;align-items:baseline;gap:.15rem;min-width:2.75rem;justify-content:center;padding:.2rem .45rem;border-radius:999px;background:#f8fafc;border:1px solid #e2e8f0;font-variant-numeric:tabular-nums}.chapter-parts-slide-dock__counter-current{font-size:.8125rem;font-weight:800;color:#0f172a}.chapter-parts-slide-dock__counter-sep{font-size:.6875rem;font-weight:600;color:#94a3b8}.chapter-parts-slide-dock__counter-total{font-size:.6875rem;font-weight:700;color:#64748b}.chapter-parts-slide-dock__doubt{flex-shrink:0;display:inline-flex;align-items:center;justify-content:center;gap:.4rem;min-height:2.15rem;padding:.4rem .85rem .4rem .75rem;border-radius:999px;border:1px solid rgba(255,255,255,.14);background:linear-gradient(180deg,#1e3a5f,#0f274d);color:#f8fafc;box-shadow:0 6px 20px #0f274d47,0 2px 6px #0f172a1f;font-size:.8125rem;font-weight:700;letter-spacing:.01em;cursor:pointer;transition:transform .16s ease,box-shadow .16s ease,background .16s ease}.chapter-parts-slide-dock__doubt:hover{transform:translateY(-2px);box-shadow:0 10px 26px #0f274d52,0 3px 8px #0f172a24}.chapter-parts-slide-dock__doubt.is-open{background:linear-gradient(180deg,#475569,#334155);padding:.4rem .8rem}.chapter-parts-slide-dock__doubt-icon{display:inline-flex;align-items:center;justify-content:center;width:1.25rem;height:1.25rem;font-size:.9rem;line-height:1}.chapter-parts-slide-dock__doubt-label{white-space:nowrap}.tests-page-wrap .chapter-parts-slide-dock{padding-left:1.25rem}.tests-page-wrap .chapter-parts-slide-dock__side--end{padding-right:max(1rem,env(safe-area-inset-right,0px))}.chapter-parts-split-wrap.is-agent-open>.chapter-parts-slide-dock,.chapter-parts-split.has-agent-open .chapter-parts-slide-dock,.chapter-parts-split-wrap.is-agent-open .tests-page-wrap .chapter-parts-slide-dock,.tests-page-wrap.is-agent-open .chapter-parts-slide-dock{z-index:110}.chapter-parts-split-wrap.is-agent-open.has-slide-dock,.chapter-parts-split.has-agent-open .chapter-parts-content--fixed-chrome .chapter-parts-content__body{padding-bottom:0}.chapter-parts-split-wrap.is-agent-open .chapter-parts-agent-backdrop.is-main-column{position:fixed;top:calc(var(--app-top-navbar-offset, calc(2.625rem + 1px) ) + var(--mp-tutor-top-gap, .35rem));left:0;right:0;bottom:0;z-index:240;grid-column:unset;grid-row:unset}.chapter-parts-split-wrap.is-agent-open .chapter-parts-tutor-shell.is-main-column,.chapter-parts-split-wrap.is-agent-open .chapter-parts-tutor-shell.is-full-split{position:fixed;top:calc(var(--app-top-navbar-offset, calc(2.625rem + 1px) ) + var(--mp-tutor-top-gap, .35rem));left:var(--mp-tutor-edge, .75rem);right:var(--mp-tutor-edge, .75rem);bottom:0;z-index:250;grid-column:unset;grid-row:unset;width:auto;height:auto;max-height:none;margin:0;padding:0;box-sizing:border-box}.chapter-parts-split-wrap.is-agent-open .chapter-parts-tutor-shell.has-whiteboard.is-full-split{padding:0 var(--mp-tutor-edge, .75rem)}.chapter-parts-split-wrap.is-agent-open .mp-doubt-chat-footer{background:var(--mp-chat-bg, #faf7f0);border-top:1px solid rgba(26,22,18,.06)}.chapter-parts-split-wrap.is-agent-open .agent-whiteboard,.chapter-parts-split-wrap.is-agent-open .chapter-parts-agent-sidebar--mp-theme{box-shadow:0 8px 32px #0f172a1f}.chapter-parts-split-wrap.is-agent-open .chapter-parts-tutor-shell.is-main-column:not(.has-whiteboard){padding-right:var(--mp-tutor-edge, .75rem);justify-content:flex-end}.chapter-part-rich{font-size:1rem;line-height:1.7;color:var(--gray-800, #1f2937);animation:chapterPartFade .35s ease;font-family:Inter,Plus Jakarta Sans,Segoe UI,sans-serif;letter-spacing:.005em;min-width:0;max-width:100%}.chapter-part-rich.chapter-part-rich--agent-html{color:unset;font-family:unset;letter-spacing:unset;line-height:unset}.chapter-part-rich.chapter-part-rich--agent-html[data-agent-shadow-host]{color:initial;font:initial;letter-spacing:initial;line-height:initial;display:block;width:100%;max-width:100%;min-width:0}.chapter-part-rich.chapter-part-rich--agent-html .slide-agent-html{color:unset}@keyframes chapterPartFade{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}.chapter-part-rich:not(.chapter-part-rich--agent-html) h1,.chapter-part-rich:not(.chapter-part-rich--agent-html) h2,.chapter-part-rich:not(.chapter-part-rich--agent-html) h3{color:var(--gray-900, #111827);font-weight:700;margin:1.25rem 0 .75rem;line-height:1.25;display:block;visibility:visible;height:auto;overflow:visible}.chapter-part-rich:not(.chapter-part-rich--agent-html) h2{font-size:1.35rem;padding-bottom:.35rem;border-bottom:2px solid rgba(255,192,46,.55)}.chapter-part-rich:not(.chapter-part-rich--agent-html) p{margin:0 0 1rem;font-size:.98rem}.chapter-part-rich:not(.chapter-part-rich--agent-html) ul,.chapter-part-rich:not(.chapter-part-rich--agent-html) ol{margin:0 0 1rem 1.25rem;padding-left:.25rem}.chapter-part-rich:not(.chapter-part-rich--agent-html) li{margin-bottom:.35rem}.chapter-part-rich:not(.chapter-part-rich--agent-html) li::marker{color:var(--brand-color, #ffc02e)}.chapter-part-rich .latex-list{margin:.75rem 0 1rem 1.25rem;padding-left:1.25rem}.chapter-part-rich .latex-list li{margin-bottom:.5rem}.chapter-part-rich .katex-inline{font-size:1.05em}.chapter-part-rich:not(.chapter-part-rich--agent-html) blockquote{margin:1rem 0;padding:.85rem 1rem;border-left:4px solid var(--brand-color, #ffc02e);background:linear-gradient(90deg,#fffbeb,#fff);border-radius:0 .5rem .5rem 0;color:var(--gray-700, #374151)}.chapter-part-rich:not(.chapter-part-rich--agent-html) code,.chapter-part-rich:not(.chapter-part-rich--agent-html) pre{font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;font-size:.9em}.chapter-part-rich:not(.chapter-part-rich--agent-html) pre{padding:1rem;border-radius:.65rem;background:var(--gray-900, #111827);color:#fef3c7;overflow-x:auto;border:1px solid #374151}.chapter-part-rich:not(.chapter-part-rich--agent-html) table{width:100%;border-collapse:collapse;margin:1rem 0;font-size:.95rem}.chapter-part-rich:not(.chapter-part-rich--agent-html) th,.chapter-part-rich:not(.chapter-part-rich--agent-html) td{border:1px solid var(--gray-200, #e5e7eb);padding:.5rem .65rem;text-align:left}.chapter-part-rich:not(.chapter-part-rich--agent-html) th{background:#fffbeb;font-weight:600}.chapter-parts-content__footer{flex-shrink:0;display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:.75rem 1.25rem;border-top:1px solid var(--gray-100, #f3f4f6);background:#fff;position:sticky;bottom:0;z-index:8;box-shadow:0 -6px 18px #0f172a14}.chapter-parts-content__footer .btn-secondary,.chapter-parts-content__footer .btn-primary{min-width:7rem}.chapter-parts-quiz-panel{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:2rem 1.5rem;gap:1rem}.chapter-parts-quiz-panel__icon{font-size:2.5rem}.chapter-parts-quiz-panel__title{font-size:1.2rem;font-weight:700;color:var(--gray-900, #111827)}.chapter-parts-quiz-panel__desc{font-size:.95rem;color:var(--gray-600, #4b5563);max-width:24rem}.chapter-parts-empty{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;color:var(--gray-500, #6b7280);padding:2rem;text-align:center}.chapter-part-rich--premium.slide-rich-doc,.chapter-part-rich--premium .slide-rich-doc{max-width:42rem}.chapter-part-rich--premium .slide-rich-doc.slide-agent-html{max-width:100%;width:100%;box-sizing:border-box;overflow-x:auto;overflow-wrap:anywhere;word-break:break-word;pointer-events:auto}.chapter-part-rich--premium .slide-agent-html button,.chapter-part-rich--premium .slide-agent-html [role=button],.chapter-part-rich--premium .slide-agent-html input,.chapter-part-rich--premium .slide-agent-html select,.chapter-part-rich--premium .slide-agent-html label,.chapter-part-rich--premium .slide-agent-html a,.chapter-part-rich--premium .slide-agent-html .flashcard,.chapter-part-rich--premium .slide-agent-html .card,.chapter-part-rich--premium .slide-agent-html [onclick],.chapter-part-rich--premium .slide-agent-html [data-action],.chapter-part-rich--premium .slide-agent-html [class*=btn],.chapter-part-rich--premium .slide-agent-html [class*=button]{pointer-events:auto!important;cursor:pointer}.chapter-part-rich--premium .slide-agent-html img,.chapter-part-rich--premium .slide-agent-html svg,.chapter-part-rich--premium .slide-agent-html video,.chapter-part-rich--premium .slide-agent-html canvas,.chapter-part-rich--premium .slide-agent-html iframe{max-width:100%;height:auto}.chapter-part-rich--premium .slide-agent-html table{display:block;width:100%;max-width:100%;overflow-x:auto}.chapter-part-rich--premium .slide-agent-html pre{max-width:100%;overflow-x:auto;white-space:pre-wrap;word-break:break-word}.chapter-part-rich--premium .slide-agent-html>:first-child{margin-top:0}.chapter-part-rich--premium .slide-agent-html>:last-child{margin-bottom:0}.chapter-part-rich--premium .slide-rich-heading{font-size:1.5rem;font-weight:800;color:var(--gray-900, #111827);margin:0 0 1rem;padding-bottom:.5rem;border-bottom:3px solid var(--brand-color, #ffc02e);letter-spacing:-.02em}.chapter-part-rich--premium .slide-rich-subheading{font-size:1.15rem;font-weight:700;margin:1.25rem 0 .65rem;color:var(--gray-800, #1f2937)}.chapter-part-rich--premium .slide-rich-lead{font-size:1.08rem;color:var(--gray-700, #374151);line-height:1.8;margin-bottom:1.25rem}.chapter-part-rich--premium .slide-rich-cards{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:.75rem}.chapter-part-rich--premium .slide-rich-card{display:flex;gap:1rem;align-items:flex-start;margin:0;padding:1rem 1.1rem;background:linear-gradient(135deg,#fff,#fffbeb);border:2px solid rgba(255,192,46,.35);border-radius:.85rem;box-shadow:0 2px 8px #1118270f;cursor:pointer;transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease}.chapter-part-rich--premium .slide-rich-card:hover,.chapter-part-rich--premium .slide-rich-card:focus-visible{border-color:var(--brand-color, #ffc02e);box-shadow:0 6px 20px #ffc02e38;transform:translateY(-2px);outline:none}.chapter-part-rich--premium .slide-rich-card.is-expanded{border-color:var(--brand-color, #ffc02e);background:linear-gradient(135deg,#fffef5,#fff);box-shadow:0 8px 24px #ffc02e2e}.chapter-part-rich--premium .slide-rich-card__num{flex-shrink:0;width:2rem;height:2rem;display:flex;align-items:center;justify-content:center;font-size:.875rem;font-weight:800;color:#1a1a1a;background:var(--brand-color, #ffc02e);border-radius:.5rem}.chapter-part-rich--premium .slide-rich-card__body{flex:1;min-width:0;font-size:1rem;line-height:1.7;color:var(--gray-800, #1f2937)}.chapter-part-rich--premium .slide-rich-strong{color:var(--gray-900, #111827);font-weight:700}.chapter-part-rich--premium .katex-inline{font-size:1.08em}.chapter-part-rich--premium .katex-display{margin:1rem 0;padding:.75rem;background:#fafafa;border-radius:.5rem;overflow-x:auto}.chapter-part-rich--premium{--chapter-image-max-width: min(100%, 36rem);--chapter-image-aspect: 9 / 7}.chapter-part-rich--premium .slide-rich-figure,.chapter-part-rich--premium .chapter-image-frame{display:flex;align-items:center;justify-content:center;width:100%;max-width:var(--chapter-image-max-width);margin:1.5rem auto 0;padding:0;aspect-ratio:var(--chapter-image-aspect);text-align:center;overflow:hidden}.chapter-part-rich--premium .slide-rich-illustration{display:block;max-width:100%;max-height:100%;width:auto;height:auto;margin:0 auto;-o-object-fit:contain;object-fit:contain;border-radius:.75rem;border:1px solid var(--gray-200, #e5e7eb);box-shadow:0 4px 16px #11182714}.chapter-part-rich--premium .slide-rich-illustration--loading{width:100%;height:100%;min-height:0;max-width:none;background:linear-gradient(135deg,#f9fafb,#fffbeb);-o-object-fit:contain;object-fit:contain}.chapter-part-rich--premium .slide-rich-illustration--error{width:100%;height:100%;min-height:0;max-width:none;background:#fef2f2;border-color:#fecaca;-o-object-fit:contain;object-fit:contain}.chapter-part-rich--premium [data-hidden-chapter-image=true]{display:none!important}.chapter-part-rich--premium .is-chapter-image-preferred{display:flex!important;flex-direction:column!important;align-items:center!important;justify-content:center!important;width:100%!important}.chapter-part-rich--premium .is-chapter-image-preferred img.slide-rich-illustration,.chapter-part-rich--premium .is-chapter-image-preferred img.slide-rich-illustration--preferred{display:block!important;max-width:100%!important;max-height:100%!important;width:auto!important;height:auto!important;margin:0 auto!important;position:static!important;-o-object-fit:contain!important;object-fit:contain!important}.chapter-part-rich--premium .is-chapter-image-preferred img.slide-rich-illustration--loaded{min-height:0}.chapter-part-rich--premium .slide-agent-html img.slide-rich-illustration,.chapter-part-rich--premium .slide-agent-html img[data-chapter-image-id],.chapter-part-rich--premium .slide-agent-html img[data-gcs-uri]{display:block!important;opacity:1!important;visibility:visible!important;max-width:100%;max-height:100%;width:auto;height:auto;-o-object-fit:contain;object-fit:contain}.chapter-part-rich--premium .slide-agent-html .answer-panel:not(.revealed),.chapter-part-rich--premium .slide-agent-html .reveal-panel:not(.revealed),.chapter-part-rich--premium .slide-agent-html [data-reveal]:not(.revealed),.chapter-part-rich--premium .slide-agent-html [data-hidden]:not(.revealed),.chapter-part-rich--premium .slide-agent-html .answer-hidden:not(.revealed),.chapter-part-rich--premium .slide-agent-html .answer-feedback:not(.revealed),.chapter-part-rich--premium .slide-agent-html .feedback-panel:not(.revealed){display:none!important}.chapter-part-rich--premium .slide-agent-html .answer-panel.revealed,.chapter-part-rich--premium .slide-agent-html .reveal-panel.revealed,.chapter-part-rich--premium .slide-agent-html [data-reveal].revealed,.chapter-part-rich--premium .slide-agent-html .answer-feedback.revealed,.chapter-part-rich--premium .slide-agent-html .feedback-panel.revealed,.chapter-part-rich--premium .slide-agent-html .answer-box.revealed,.chapter-part-rich--premium .slide-agent-html .correct-answer.revealed,.chapter-part-rich--premium .slide-agent-html [data-quiz-answer-revealed=true]{display:block!important;visibility:visible!important;opacity:1!important}.chapter-part-rich--premium .claude-json-doc{display:flex;flex-direction:column;gap:1.25rem;color:var(--gray-800, #1f2937)}.chapter-part-rich--premium .claude-json-doc--simple{gap:1.5rem}.chapter-part-rich--premium .claude-slide-head{padding-bottom:.25rem;border-bottom:1px solid var(--gray-100, #f3f4f6)}.chapter-part-rich--premium .claude-slide-head__badges{display:flex;flex-wrap:wrap;gap:.45rem;margin-bottom:.65rem}.chapter-part-rich--premium .claude-slide-badge{display:inline-flex;align-items:center;padding:.2rem .55rem;border-radius:999px;background:#f3f4f6;color:#4b5563;font-size:.72rem;font-weight:700;letter-spacing:.04em;text-transform:uppercase}.chapter-part-rich--premium .claude-slide-badge--type{background:#fffbeb;color:#92400e;border:1px solid rgba(255,192,46,.45)}.chapter-part-rich--premium .claude-slide-head__title{margin:0;font-family:Georgia,Times New Roman,serif;font-size:clamp(1.65rem,2.5vw,2.15rem);font-weight:700;line-height:1.15;letter-spacing:-.02em;color:#111827}.chapter-part-rich--premium .claude-slide-head__lead{margin:.55rem 0 0;font-size:.98rem;line-height:1.65;color:#4b5563}.chapter-part-rich--premium .claude-three-cards{display:flex;flex-direction:column;gap:1.25rem}.chapter-part-rich--premium .claude-simple-card{border-radius:.85rem;border:1px solid #e5e7eb;background:#fff;padding:1.35rem 1.4rem 1.45rem;box-shadow:0 1px 3px #0f172a0a}.chapter-part-rich--premium .claude-simple-card--key{border-color:#fcd34d;background:linear-gradient(180deg,#fffdf5,#fffbeb)}.chapter-part-rich--premium .claude-simple-card--note{border-color:#e5e7eb;background:#fafafa}.chapter-part-rich--premium .claude-simple-card__eyebrow{display:inline-flex;margin-bottom:.9rem;font-size:.68rem;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:#92400e}.chapter-part-rich--premium .claude-simple-card--intro .claude-simple-card__eyebrow{color:#6b7280}.chapter-part-rich--premium .claude-simple-card--note .claude-simple-card__eyebrow{color:#b45309}.chapter-part-rich--premium .claude-simple-card__heading{margin:0 0 .85rem;font-family:Georgia,Times New Roman,serif;font-size:1.15rem;font-weight:700;line-height:1.35;color:#111827}.chapter-part-rich--premium .claude-simple-card__body{display:flex;flex-direction:column;gap:1.1rem;font-size:.95rem;line-height:1.75;color:#374151}.chapter-part-rich--premium .claude-json-doc--simple .claude-simple-card__body>*{margin-top:0;margin-bottom:0}.chapter-part-rich--premium .claude-json-doc--simple .claude-section-chunk{display:flex;flex-direction:column;gap:.85rem}.chapter-part-rich--premium .claude-simple-card__body .claude-section-chunk+.claude-section-chunk{margin-top:0;padding-top:1.25rem;border-top:1px dashed #d1d5db}.chapter-part-rich--premium .claude-json-doc--simple .claude-callout{margin:0;padding:1rem 1.15rem 1.1rem 1.3rem;border-left-width:4px}.chapter-part-rich--premium .claude-json-doc--simple .claude-callout__label{margin-bottom:.55rem}.chapter-part-rich--premium .claude-json-doc--simple .claude-callout__body{line-height:1.75}.chapter-part-rich--premium .claude-json-doc--simple .claude-callout__body>*:last-child{margin-bottom:0}.chapter-part-rich--premium .claude-json-doc--simple .claude-summary{margin:0;padding:.9rem 0 .9rem 1.15rem;border-left-width:4px}.chapter-part-rich--premium .claude-json-doc--simple .claude-section__subtitle,.chapter-part-rich--premium .claude-json-doc--simple .claude-slide-head__lead,.chapter-part-rich--premium .claude-json-doc--simple .claude-rich-p,.chapter-part-rich--premium .claude-json-doc--simple .claude-section__content,.chapter-part-rich--premium .claude-json-doc--simple .claude-rich-block{margin:0}.chapter-part-rich--premium .claude-json-doc--simple .claude-rich-p+.claude-rich-p,.chapter-part-rich--premium .claude-json-doc--simple .claude-section__content+.claude-section__content{margin-top:.75rem}.chapter-part-rich--premium .claude-json-doc--simple .claude-rich-p,.chapter-part-rich--premium .claude-json-doc--simple .claude-section__content p,.chapter-part-rich--premium .claude-json-doc--simple .claude-callout__body p{margin:0 0 .75rem}.chapter-part-rich--premium .claude-json-doc--simple .claude-rich-p:last-child,.chapter-part-rich--premium .claude-json-doc--simple .claude-section__content p:last-child,.chapter-part-rich--premium .claude-json-doc--simple .claude-callout__body p:last-child{margin-bottom:0}.chapter-part-rich--premium .claude-json-doc--simple .claude-block{margin-top:0}.chapter-part-rich--premium .claude-json-doc--simple .claude-block__title{margin:0 0 .65rem}.chapter-part-rich--premium .claude-json-doc--simple .claude-list,.chapter-part-rich--premium .claude-json-doc--simple .claude-steps,.chapter-part-rich--premium .claude-json-doc--simple .claude-rich-ul,.chapter-part-rich--premium .claude-json-doc--simple .claude-rich-ol{margin:.35rem 0 0;padding-left:.25rem}.chapter-part-rich--premium .claude-json-doc--simple .claude-list__item,.chapter-part-rich--premium .claude-json-doc--simple .claude-rich-li{margin-bottom:.55rem}.chapter-part-rich--premium .claude-json-doc--simple .claude-list__item:last-child,.chapter-part-rich--premium .claude-json-doc--simple .claude-rich-li:last-child{margin-bottom:0}.chapter-part-rich--premium .claude-json-doc--simple .claude-chip-row{margin-top:0}.chapter-part-rich--premium .claude-json-doc--simple .claude-slide-head{padding-bottom:1.1rem;margin-bottom:.15rem}.chapter-part-rich--premium .claude-json-doc--simple .claude-slide-head__title{margin-bottom:.65rem}.chapter-part-rich--premium .claude-json-doc--simple .claude-slide-keywords{padding-top:1rem;margin-top:.25rem}.chapter-part-rich--premium .claude-json-doc--simple .claude-simple-card--key .claude-list__item{display:flex;align-items:flex-start;gap:.85rem;padding:.95rem 1.05rem;border:1px solid #fde68a;border-radius:.75rem;background:#fff;list-style:none;position:static}.chapter-part-rich--premium .claude-json-doc--simple .claude-simple-card--key .claude-list__item:before{content:none;display:none}.chapter-part-rich--premium .claude-json-doc--simple .claude-simple-card--key .claude-list__num{flex-shrink:0;display:inline-flex;align-items:center;justify-content:center;width:1.65rem;height:1.65rem;min-width:1.65rem;margin-top:.1rem;border-radius:999px;background:#f59e0b;color:#fff;font-size:.72rem;font-weight:800;line-height:1}.chapter-part-rich--premium .claude-json-doc--simple .claude-simple-card--key .claude-list__body{flex:1;min-width:0;line-height:1.65;padding-top:.05rem}.chapter-part-rich--premium .claude-json-doc--simple .claude-simple-card--key .claude-list{gap:.75rem}.chapter-part-rich--premium .claude-json-doc--simple .claude-simple-card--key .claude-rich-ul,.chapter-part-rich--premium .claude-json-doc--simple .claude-simple-card--key .claude-rich-ol{padding-left:0;list-style:none}.chapter-part-rich--premium .claude-json-doc--simple .claude-simple-card--key .claude-rich-li{list-style:none;position:relative;padding:.5rem 0 .5rem 1.35rem;margin-bottom:.35rem;line-height:1.65}.chapter-part-rich--premium .claude-json-doc--simple .claude-simple-card--key .claude-rich-li:before{content:"→";position:absolute;left:0;top:.55rem;color:#d97706;font-weight:700;font-size:.9rem}.chapter-part-rich--premium .claude-slide-keywords{padding-top:.25rem;border-top:1px solid var(--gray-100, #f3f4f6)}.chapter-part-rich--premium .claude-chip--keyword{background:#f9fafb;border-color:#e5e7eb;font-weight:600;font-size:.78rem}.chapter-part-rich--premium .claude-hero{position:relative;overflow:hidden;padding:1.35rem;border:1px solid rgba(255,192,46,.35);border-radius:1.15rem;background:radial-gradient(circle at top right,rgba(255,192,46,.22),transparent 34%),linear-gradient(135deg,#fffdf4,#fff 58%,#f9fafb);box-shadow:0 12px 32px #11182714}.chapter-part-rich--premium .claude-hero__title{margin:0;font-size:clamp(1.55rem,2.4vw,2.2rem);line-height:1.12;letter-spacing:-.04em;color:var(--gray-950, #030712)}.chapter-part-rich--premium .claude-hero__subtitle,.chapter-part-rich--premium .claude-summary{margin:.65rem 0 0;font-size:1.02rem;line-height:1.75;color:var(--gray-700, #374151)}.chapter-part-rich--premium .claude-summary{padding-left:.9rem;border-left:4px solid var(--brand-color, #ffc02e)}.chapter-part-rich--premium .claude-chip-row{display:flex;flex-wrap:wrap;gap:.5rem;margin-top:.85rem}.chapter-part-rich--premium .claude-chip{display:inline-flex;align-items:center;min-height:1.8rem;padding:.3rem .65rem;border:1px solid var(--gray-200, #e5e7eb);border-radius:999px;background:#fff;color:var(--gray-700, #374151);font-size:.8rem;font-weight:700}.chapter-part-rich--premium .claude-chip--meta{border-color:#ffc02e80;background:#fffbeb;color:#92400e}.chapter-part-rich--premium .claude-chip--soft{background:#f8fafc}.chapter-part-rich--premium .claude-section{padding:1.15rem;border:1px solid var(--gray-200, #e5e7eb);border-radius:1rem;background:#fff;box-shadow:0 8px 24px #1118270f}.chapter-part-rich--premium .claude-section__eyebrow{display:inline-flex;margin-bottom:.45rem;padding:.2rem .55rem;border-radius:999px;background:#fffbeb;color:#92400e;font-size:.72rem;font-weight:800;letter-spacing:.06em;text-transform:uppercase}.chapter-part-rich--premium .claude-section__title{margin:0;font-size:1.32rem;font-weight:850;letter-spacing:-.03em;color:var(--gray-950, #030712)}.chapter-part-rich--premium .claude-section__subtitle{margin:.35rem 0 0;color:var(--gray-600, #4b5563);line-height:1.65}.chapter-part-rich--premium .claude-section__content{margin:.9rem 0 0;font-size:1rem;line-height:1.8}.chapter-part-rich--premium .claude-rich-block>.claude-rich-p:first-child,.chapter-part-rich--premium .claude-rich-block>p.claude-rich-p:first-child{margin-top:0}.chapter-part-rich--premium .claude-rich-p{margin:.65rem 0 0;line-height:1.8}.chapter-part-rich--premium .claude-rich-p--spaced{margin-top:1rem}.chapter-part-rich--premium .claude-rich-p--bottom-spaced{margin-bottom:.75rem}.chapter-part-rich--premium .claude-rich-strong,.chapter-part-rich--premium strong.claude-rich-strong{font-weight:800;color:var(--gray-900, #111827)}.chapter-part-rich--premium .claude-rich-em,.chapter-part-rich--premium em.claude-rich-em{font-style:italic}.chapter-part-rich--premium .claude-rich-underline{text-decoration:underline;text-underline-offset:.12em}.chapter-part-rich--premium .claude-rich-ul,.chapter-part-rich--premium .claude-rich-ol{margin:.65rem 0 0;padding-left:1.35rem}.chapter-part-rich--premium .claude-rich-li{margin-top:.35rem;line-height:1.7}.chapter-part-rich--premium .claude-rich-quote{margin:.75rem 0 0;padding:.65rem .85rem;border-left:3px solid var(--gray-300, #d1d5db);color:var(--gray-700, #374151);background:var(--gray-50, #f9fafb);border-radius:.35rem}.chapter-part-rich--premium .claude-rich-code{font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;font-size:.9em;padding:.1em .35em;border-radius:.25rem;background:var(--gray-100, #f3f4f6)}.chapter-part-rich--premium .claude-rich-pre{margin:.75rem 0 0;padding:.75rem;overflow-x:auto;border-radius:.5rem;background:var(--gray-900, #111827);color:#f9fafb;font-size:.88rem;line-height:1.55}.chapter-part-rich--premium .claude-rich-heading{margin:1rem 0 0;font-size:1.05rem;font-weight:850}.chapter-part-rich--premium .claude-rich-subheading{margin:.85rem 0 0;font-size:.98rem;font-weight:800}.chapter-part-rich--premium .claude-rich-miniheading{margin:.75rem 0 0;font-size:.92rem;font-weight:750}.chapter-part-rich--premium .claude-block{margin-top:1rem}.chapter-part-rich--premium .claude-block__title{margin:0 0 .55rem;font-size:.92rem;font-weight:850;color:var(--gray-900, #111827)}.chapter-part-rich--premium .claude-callout{margin-top:.85rem;padding:.9rem 1rem;border:1px solid var(--gray-200, #e5e7eb);border-left:5px solid var(--brand-color, #ffc02e);border-radius:.85rem;background:#fffdf4}.chapter-part-rich--premium .claude-callout--warning,.chapter-part-rich--premium .claude-callout--mistake{border-left-color:#f97316;background:#fff7ed}.chapter-part-rich--premium .claude-callout--tip,.chapter-part-rich--premium .claude-callout--remember,.chapter-part-rich--premium .claude-callout--application{border-left-color:#10b981;background:#ecfdf5}.chapter-part-rich--premium .claude-callout__label{margin-bottom:.25rem;font-size:.78rem;font-weight:850;letter-spacing:.05em;text-transform:uppercase;color:var(--gray-700, #374151)}.chapter-part-rich--premium .claude-callout__body{line-height:1.75}.chapter-part-rich--premium .claude-formula-card{margin-top:.9rem;padding:1rem;border-radius:.9rem;background:#0f172a;color:#fff;box-shadow:inset 0 0 0 1px #ffffff14;overflow-x:auto}.chapter-part-rich--premium .claude-formula-card__label{margin-bottom:.4rem;color:#fde68a;font-size:.78rem;font-weight:850;letter-spacing:.08em;text-transform:uppercase}.chapter-part-rich--premium .claude-formula-card__body{font-size:1.08rem;line-height:1.75}.chapter-part-rich--premium .claude-list,.chapter-part-rich--premium .claude-steps{display:grid;gap:.65rem;margin:0;padding:0;list-style:none}.chapter-part-rich--premium .claude-list__item,.chapter-part-rich--premium .claude-step{display:grid;grid-template-columns:auto 1fr;gap:.75rem;align-items:flex-start;padding:.8rem;border:1px solid var(--gray-200, #e5e7eb);border-radius:.8rem;background:#fafafa}.chapter-part-rich--premium .claude-list__num,.chapter-part-rich--premium .claude-step__badge{display:inline-flex;align-items:center;justify-content:center;width:1.75rem;height:1.75rem;border-radius:.55rem;background:var(--brand-color, #ffc02e);color:#1a1a1a;font-size:.78rem;font-weight:850}.chapter-part-rich--premium .claude-step__label{margin-bottom:.2rem;font-size:.82rem;font-weight:850;color:var(--gray-900, #111827)}.chapter-part-rich--premium .claude-list__body,.chapter-part-rich--premium .claude-step__body{line-height:1.7}.chapter-part-rich--premium .claude-example-grid,.chapter-part-rich--premium .claude-practice-grid{display:grid;gap:.85rem}.chapter-part-rich--premium .claude-example-card,.chapter-part-rich--premium .claude-practice-card{padding:1rem;border:1px solid rgba(255,192,46,.35);border-radius:.95rem;background:linear-gradient(135deg,#fff,#fffbeb)}.chapter-part-rich--premium .claude-example-card__title,.chapter-part-rich--premium .claude-practice-card__title{margin:0 0 .55rem;font-size:1rem;font-weight:850;color:var(--gray-950, #030712)}.chapter-part-rich--premium .claude-example-card__problem,.chapter-part-rich--premium .claude-practice-card__hint{margin:0 0 .8rem;line-height:1.7}.chapter-part-rich--premium .claude-answer{display:flex;flex-wrap:wrap;gap:.45rem .75rem;align-items:center;margin-top:.75rem;padding:.7rem .8rem;border-radius:.75rem;background:#ecfdf5;color:#065f46}.chapter-part-rich--premium .claude-answer span{font-size:.75rem;font-weight:850;letter-spacing:.06em;text-transform:uppercase}.chapter-part-rich--premium .claude-answer strong{font-weight:850}.chapter-part-rich--premium .claude-qa-list{display:grid;gap:.65rem}.chapter-part-rich--premium .claude-qa{border:1px solid var(--gray-200, #e5e7eb);border-radius:.8rem;background:#fff}.chapter-part-rich--premium .claude-qa summary{cursor:pointer;padding:.8rem .9rem;font-weight:800}.chapter-part-rich--premium .claude-qa__answer{padding:0 .9rem .9rem;color:var(--gray-700, #374151);line-height:1.7}.chapter-part-rich--premium .claude-table-wrap{margin-top:1rem;overflow-x:auto;border:1px solid var(--gray-200, #e5e7eb);border-radius:.85rem}.chapter-part-rich--premium .claude-table{width:100%;border-collapse:collapse;min-width:28rem;background:#fff}.chapter-part-rich--premium .claude-table th,.chapter-part-rich--premium .claude-table td{padding:.8rem;border-bottom:1px solid var(--gray-200, #e5e7eb);text-align:left;vertical-align:top;line-height:1.55}.chapter-part-rich--premium .claude-table th{background:#fffbeb;color:#92400e;font-size:.82rem;font-weight:850}.chapter-part-rich--premium .claude-comparison{display:grid;gap:.65rem}.chapter-part-rich--premium .claude-comparison__row{display:grid;grid-template-columns:1fr 1fr;gap:.75rem}.chapter-part-rich--premium .claude-comparison__row>div{padding:.85rem;border:1px solid var(--gray-200, #e5e7eb);border-radius:.8rem;background:#f9fafb;line-height:1.65}.chapter-part-rich--premium .claude-figure__caption{margin-top:.55rem;color:var(--gray-600, #4b5563);font-size:.88rem;line-height:1.55}.chapter-part-rich--premium .claude-video-link{display:inline-flex;margin-top:.85rem;padding:.65rem .9rem;border-radius:.8rem;background:var(--gray-900, #111827);color:#fff;font-weight:800;text-decoration:none}.chapter-part-rich--premium .claude-video-link:hover{background:#000}@media (max-width: 640px){.chapter-part-rich--premium .claude-hero,.chapter-part-rich--premium .claude-section{padding:1rem}.chapter-part-rich--premium .claude-comparison__row{grid-template-columns:1fr}}@media (max-width: 960px){.chapter-parts-split{grid-template-columns:1fr;grid-template-rows:auto minmax(0,1fr);flex:1;min-height:0;height:auto;max-height:none}.chapter-parts-split__sidebar{max-height:32vh}.chapter-parts-split--collapsible-sidebar:not(.is-sidebar-open){grid-template-rows:minmax(0,1fr)}.chapter-parts-split--collapsible-sidebar.is-sidebar-open{grid-template-columns:1fr;grid-template-rows:auto minmax(0,1fr)}.chapter-parts-split--collapsible-sidebar.is-sidebar-open .chapter-parts-split__sidebar{display:flex;max-height:32vh}.chapter-parts-split--collapsible-sidebar.is-sidebar-open .chapter-parts-split__sidebar-toggle{top:.65rem;left:auto;right:0;transform:none;border-left:1px solid var(--gray-200, #e5e7eb);border-radius:.45rem;width:2rem;height:2rem}.chapter-parts-split--collapsible-sidebar:not(.is-sidebar-open) .chapter-parts-split__sidebar-toggle{top:.65rem;left:0;transform:none}.chapter-parts-split--collapsible-sidebar:not(.is-sidebar-open) .chapter-parts-tutor-shell.is-main-column,.chapter-parts-split--collapsible-sidebar:not(.is-sidebar-open) .chapter-parts-agent-backdrop.is-main-column{grid-column:1;grid-row:1}.chapter-parts-split__main{min-height:0;height:auto;max-height:none}}.chapter-parts-split-wrap.is-agent-open{padding-top:0;overflow:hidden;padding-bottom:0}.chapter-parts-split.has-agent-open{flex:1;min-height:0;overflow:hidden}.chapter-parts-split-wrap.is-agent-open .chapter-parts-split{margin-right:0}.chapter-parts-agent-backdrop{position:absolute;top:0;right:0;bottom:0;left:0;z-index:140;border:none;padding:0;margin:0;background:#0f172a57;-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px);cursor:pointer;border-radius:inherit}.chapter-parts-agent-launcher{position:fixed;right:1.35rem;bottom:1.35rem;width:3rem;height:3rem;border-radius:999px;border:1px solid rgba(15,23,42,.08);background:#0f274d;color:#f8fafc;box-shadow:0 8px 24px #0f172a24;font-size:1.05rem;cursor:pointer;z-index:55}.chapter-parts-split__main .chapter-parts-agent-sidebar{position:absolute;top:0;right:0;bottom:0;width:min(28.5rem,100%);max-width:100%;height:auto;background:#fff;border:1px solid rgba(15,23,42,.08);border-radius:1rem;box-shadow:-16px 0 42px #0f172a29;display:flex;flex-direction:column;padding:24px 20px 20px;overflow:hidden;transform:translate(100%);transition:transform .28s cubic-bezier(.22,1,.36,1);z-index:200;pointer-events:none}.chapter-parts-split__main .chapter-parts-agent-sidebar.is-open{transform:translate(0);pointer-events:auto}.chapter-parts-agent-sidebar{position:fixed;top:5rem;right:1.25rem;bottom:1.25rem;width:min(28.5rem,calc(35vw - .5rem));max-width:30rem;height:auto;background:#fff;border:1px solid rgba(15,23,42,.08);border-radius:24px;box-shadow:0 8px 30px #0f172a0f;display:flex;flex-direction:column;padding:24px 20px 20px;overflow:hidden;transform:translate(calc(100% + 1.75rem));transition:transform .28s cubic-bezier(.22,1,.36,1);z-index:45}.chapter-parts-agent-sidebar.is-open{transform:translate(0);z-index:200}.chapter-parts-agent-sidebar__head{display:flex;align-items:center;justify-content:space-between;gap:.75rem;padding:0 .2rem .55rem;border-bottom:1px solid rgba(15,23,42,.06);flex-shrink:0;min-height:2.25rem}.chapter-parts-agent-sidebar__head-title{display:flex;align-items:center;gap:.35rem;min-width:0;margin:0;flex:1 1 auto}.chapter-parts-agent-sidebar__bar-sep{color:#cbd5e1;font-weight:600;flex-shrink:0}.chapter-parts-agent-sidebar__head-actions{display:flex;flex-wrap:wrap;align-items:center;justify-content:flex-end;gap:.45rem;flex-shrink:0}.chapter-parts-agent-sidebar__close{border:1px solid rgba(15,23,42,.1);background:#0f274d;color:#f8fafc;border-radius:999px;padding:.38rem .75rem;font-size:.72rem;font-weight:700;cursor:pointer;white-space:nowrap;transition:background .15s ease,border-color .15s ease}.chapter-parts-agent-sidebar__close:hover{background:#1a3768;border-color:#0f172a2e}.chapter-parts-agent-sidebar__eyebrow{font-size:.68rem;letter-spacing:.04em;text-transform:uppercase;font-weight:600;color:#94a3b8;white-space:nowrap;flex-shrink:0}.chapter-parts-agent-sidebar__title{margin:0;font-size:.92rem;color:#0f172a;font-weight:750;letter-spacing:-.02em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.chapter-parts-agent-sidebar__mode-btn{border:1px solid rgba(15,23,42,.08);background:#f8fafc;color:#475569;border-radius:999px;font-size:.72rem;font-weight:600;padding:.35rem .7rem;transition:background .15s ease,border-color .15s ease}.chapter-parts-agent-sidebar__mode-btn:hover{background:#fff;border-color:#0f172a24}.chapter-parts-agent-sidebar__mode{padding:.75rem .2rem .35rem;font-size:.76rem;color:#64748b;flex-shrink:0}.chapter-parts-agent-sidebar__mode strong{color:#0f172a;font-weight:700;background:none;padding:0}.chapter-parts-agent-sidebar>.chapter-parts-agent-mode-picker,.chapter-parts-agent-sidebar>.chapter-parts-agent-voice,.chapter-parts-agent-sidebar>.chapter-parts-agent-chat-panel{flex:1;min-height:0;display:flex;flex-direction:column}.chapter-parts-agent-context{margin:.6rem .95rem .75rem;border:1px solid #e5e7eb;border-radius:.75rem;padding:.65rem .7rem;background:#f8fafc}.chapter-parts-agent-context__label{font-size:.68rem;text-transform:uppercase;letter-spacing:.03em;color:#64748b}.chapter-parts-agent-context__title{margin:.45rem 0 .2rem;font-size:.96rem;line-height:1.35;color:#0f172a}.chapter-parts-agent-context__tags{margin:0;font-size:.75rem;color:#64748b}.chapter-parts-agent-context__summary{margin:.45rem 0 0;font-size:.79rem;color:#334155;line-height:1.5}.chapter-parts-agent-mode-picker{margin:.35rem 0 0;padding:.15rem .1rem .25rem}.chapter-parts-agent-mode-picker__title{margin:0;font-size:.98rem;font-weight:750;letter-spacing:-.01em;color:#0f172a}.chapter-parts-agent-mode-picker__hint{margin:.35rem 0 .85rem;font-size:.76rem;line-height:1.5;color:#64748b}.chapter-parts-agent-mode-picker__cards{display:grid;grid-template-columns:1fr 1fr;gap:.7rem}.chapter-parts-agent-mode-card{border:1px solid rgba(15,23,42,.08);border-radius:18px;background:#fff;min-height:8.5rem;padding:.9rem .75rem;display:flex;flex-direction:column;align-items:center;justify-content:flex-start;gap:.4rem;text-align:center;box-shadow:0 2px 10px #0f172a08;transition:border-color .16s ease,box-shadow .16s ease,transform .16s ease}.chapter-parts-agent-mode-card:hover{border-color:#0f172a24;box-shadow:0 8px 24px #0f172a0f;transform:translateY(-1px)}.chapter-parts-agent-mode-card__icon{width:2.2rem;height:2.2rem;border-radius:999px;display:inline-flex;align-items:center;justify-content:center;font-size:1rem;background:#f8fafc}.chapter-parts-agent-mode-card__label{font-size:.92rem;font-weight:800;color:#0f172a}.chapter-parts-agent-mode-card__desc{font-size:.72rem;line-height:1.35;color:#64748b}.chapter-parts-tutor-shell{z-index:200;display:flex;flex-direction:row;align-items:stretch;min-height:0;pointer-events:none}.chapter-parts-tutor-shell.is-main-column,.chapter-parts-agent-backdrop.is-main-column{grid-column:2;grid-row:1;position:absolute;top:0;right:0;bottom:0;left:0}.chapter-parts-tutor-shell.is-full-split{grid-column:1 / -1;grid-row:1;position:absolute;top:0;right:0;bottom:0;left:0}.chapter-parts-agent-backdrop.is-main-column{z-index:130}.chapter-parts-tutor-shell>*{pointer-events:auto}.chapter-parts-tutor-shell:not(.has-whiteboard){justify-content:flex-end}.chapter-parts-tutor-shell.has-whiteboard.is-full-split,.chapter-parts-tutor-shell.has-whiteboard:not(.is-full-split){gap:.85rem;padding:0;border:none;background:transparent;box-shadow:none;overflow:visible}.chapter-parts-tutor-shell .chapter-parts-agent-sidebar{position:relative;top:auto;right:auto;bottom:auto;flex:0 0 min(28.5rem,44%);width:min(28.5rem,44%);max-width:44%;height:auto;transform:none!important;z-index:1;border:none;border-radius:0;box-shadow:none;pointer-events:auto}.chapter-parts-tutor-shell.has-whiteboard.is-full-split .chapter-parts-agent-sidebar{flex:0 0 min(26rem,34%);width:min(26rem,34%);max-width:34%}.chapter-parts-tutor-shell.has-whiteboard.is-full-split .agent-whiteboard{flex:1 1 66%;min-width:0}.chapter-parts-tutor-shell:not(.has-whiteboard) .chapter-parts-agent-sidebar{flex:0 0 min(28.5rem,100%);width:min(28.5rem,100%);max-width:100%;border:1px solid rgba(15,23,42,.08);border-radius:1rem;box-shadow:-16px 0 42px #0f172a29}.chapter-parts-tutor-shell.has-whiteboard .chapter-parts-agent-sidebar{border:1px solid rgba(15,23,42,.08);border-radius:1.125rem;box-shadow:0 14px 36px #0f172a1f;overflow:hidden}.chapter-parts-agent-sidebar__toolbar{flex-shrink:0;background:#fff;z-index:3}.chapter-parts-agent-sidebar--quiz{padding:0!important}.chapter-parts-agent-sidebar__bar{display:flex;align-items:flex-start;justify-content:space-between;gap:.65rem;padding:.55rem .85rem;border-bottom:1px solid rgba(226,232,240,.9);background:#fffffffa;flex-shrink:0;min-height:2.5rem}.chapter-parts-agent-sidebar__bar-main{display:flex;flex-direction:column;gap:.15rem;min-width:0;flex:1 1 auto}.chapter-parts-agent-sidebar__bar-title{display:flex;align-items:center;gap:.35rem;min-width:0;margin:0}.chapter-parts-agent-sidebar__bar-mode{font-size:.72rem;color:#64748b;line-height:1.2}.chapter-parts-agent-sidebar__bar-mode strong{color:#0f172a;font-weight:700;background:none;padding:0}.chapter-parts-agent-chat-panel strong,.chapter-parts-agent-chat strong{font-weight:inherit;background:none;padding:0}.chapter-parts-agent-sidebar__bar-actions{display:flex;flex-wrap:wrap;align-items:center;justify-content:flex-end;gap:.4rem;flex-shrink:0}@media (max-width: 1100px){.chapter-parts-tutor-shell--quiz .chapter-parts-agent-sidebar__bar{flex-wrap:wrap}.chapter-parts-tutor-shell--quiz .chapter-parts-agent-sidebar__bar-actions{width:100%;justify-content:flex-end}}.chapter-parts-agent-sidebar--quiz>.chapter-parts-agent-mode-picker,.chapter-parts-agent-sidebar--quiz>.chapter-parts-agent-voice,.chapter-parts-agent-sidebar--quiz>.chapter-parts-agent-chat-panel{padding:.85rem 1rem 1rem}.chapter-parts-agent-sidebar__mode-bar{display:flex;align-items:center;justify-content:space-between;gap:.55rem;padding:.15rem .2rem .55rem;border-bottom:1px solid rgba(15,23,42,.06);flex-shrink:0}.chapter-parts-agent-sidebar__mode-bar .chapter-parts-agent-sidebar__mode{padding:0;min-width:0}.chapter-parts-agent-sidebar__mode-bar .chapter-parts-agent-sidebar__head-actions{flex-shrink:0}.chapter-parts-agent-sidebar--quiz .chapter-parts-agent-sidebar__head{border-bottom:none;padding-bottom:.2rem}.chapter-parts-tutor-shell .agent-whiteboard{position:relative;flex:1 1 0;min-width:0;min-height:0;inset:auto;width:auto;height:auto;z-index:1;margin:0;border:1px solid rgba(15,23,42,.08);border-radius:1.125rem;background:#fff;-webkit-backdrop-filter:none;backdrop-filter:none;box-shadow:0 14px 36px #0f172a1f;animation:none;overflow:hidden}.chapter-parts-tutor-shell.has-whiteboard .agent-whiteboard__bar{border-top-left-radius:1.125rem;border-top-right-radius:1.125rem}.agent-whiteboard__waiting--idle{min-height:10rem}.agent-whiteboard__waiting--idle .agent-whiteboard__waiting-dots{display:none}.chapter-parts-tutor-shell.has-whiteboard .agent-whiteboard__waiting--idle{margin:.75rem 1rem 1rem;padding:1.25rem 1.15rem;border-radius:1rem;background:#f8fafc;border:1px solid rgba(15,23,42,.06);min-height:0}.chapter-parts-tutor-shell.has-whiteboard .agent-whiteboard__body{flex:1;min-height:0;overflow-x:auto;overflow-y:auto}.chapter-parts-tutor-shell--quiz{display:none}.chapter-parts-split__main .agent-whiteboard{z-index:160}.agent-whiteboard{position:absolute;top:0;right:0;bottom:0;left:0;z-index:20;display:flex;flex-direction:column;width:100%;height:100%;min-height:0;border-radius:1rem;overflow:hidden;color:#0f172a;border:1px solid rgba(226,232,240,.9);background:#ffffffe6;-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px);box-shadow:0 18px 42px #0f172a2e;animation:agent-whiteboard-in .22s ease}@keyframes agent-whiteboard-in{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.agent-whiteboard__bar{display:flex;align-items:center;justify-content:space-between;gap:.75rem;padding:.5rem .85rem;border-bottom:1px solid rgba(226,232,240,.9);background:#ffffffeb;flex-shrink:0;min-height:2.5rem}.agent-whiteboard__bar-title{display:flex;align-items:center;gap:.35rem;min-width:0;margin:0;flex:0 1 auto}.agent-whiteboard__bar-sep{color:#cbd5e1;font-weight:600;flex-shrink:0}.agent-whiteboard__eyebrow{margin:0;font-size:.68rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:#64748b;white-space:nowrap;flex-shrink:0}.agent-whiteboard__heading{margin:0;font-size:.92rem;line-height:1.25;font-weight:700;color:#0f172a;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.agent-whiteboard__bar .tutor-sync--inline{flex:1 1 8rem;min-width:0;max-width:14rem;margin-left:auto}.agent-whiteboard__close{border:1px solid #cbd5e1;background:#fff;color:#334155;width:2rem;height:2rem;border-radius:999px;font-size:.85rem;line-height:1;cursor:pointer;flex-shrink:0}.agent-whiteboard__close:hover{background:#f8fafc;border-color:#94a3b8}.agent-whiteboard__display{margin:0;padding:.85rem 1.15rem;font-size:.95rem;line-height:1.55;color:#334155;border-bottom:1px solid rgba(226,232,240,.9);background:#fffbebeb;flex-shrink:0}.agent-whiteboard__body{flex:1;min-height:0;overflow-x:auto;overflow-y:auto;padding:.65rem .75rem .85rem;background:transparent}.agent-whiteboard__body:has(.agent-whiteboard__shimmer){padding:0;overflow:hidden;display:flex;flex-direction:column}.agent-whiteboard__body:has(.agent-whiteboard__shimmer) .agent-whiteboard__shimmer{flex:1}.agent-chat-slide-html,.agent-chat-slide-html .chapter-part-rich--agent-html{width:100%;max-width:100%;min-width:0;box-sizing:border-box;pointer-events:auto;background:transparent;color:unset;font-family:unset;letter-spacing:unset;line-height:unset}.agent-whiteboard__seed--verbatim{position:relative;flex:0 0 auto;width:100%;max-width:100%;min-width:0}.verbatim-html-scroll-wrap{width:100%;max-width:100%;min-width:0;overflow-x:auto;overflow-y:hidden;-webkit-overflow-scrolling:touch}.agent-whiteboard__verbatim-frame{display:block;min-height:0;border:0;background:transparent;border-radius:.65rem;overflow:hidden;opacity:0;transition:opacity .18s ease}.agent-whiteboard__page-loading-overlay{position:absolute;top:0;right:0;bottom:0;left:0;z-index:2;min-height:0;background:#faf8f3;border-radius:0;padding:0;transition:opacity .2s ease}.agent-whiteboard__shimmer--hiding{opacity:0;pointer-events:none}.agent-whiteboard__shimmer{display:flex;flex-direction:column;align-items:stretch;justify-content:stretch;width:100%;height:100%;min-height:0;padding:0;border-radius:0;background:#faf8f3}.agent-whiteboard__shimmer-card{flex:1;display:flex;flex-direction:column;width:100%;height:100%;min-height:0;max-width:none;margin:0}.wb-loading{position:relative;width:100%;height:100%;min-height:0;margin:0;padding:0;background:#faf8f3;border-radius:0;overflow:hidden}.wb-loading--video{display:flex;flex-direction:column;flex:1;min-height:0}.wb-loading--fallback{display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:1.5rem 1rem;height:100%}.wb-loading__video-wrap{position:relative;flex:1;min-height:0;width:100%;display:flex;align-items:center;justify-content:center;overflow:hidden;background:#faf8f3;border-radius:0;box-shadow:none}.wb-loading__video{display:block;width:100%;height:100%;-o-object-fit:contain;object-fit:contain;-o-object-position:center center;object-position:center center;background:#faf8f3}.wb-loading__progress{position:relative;z-index:2;flex-shrink:0;width:100%;max-width:none;margin:0;padding:.55rem 1.15rem .85rem;background:#faf8f3}.wb-loading__progress--overlay{position:absolute;left:10%;right:10%;bottom:5.5%;width:auto;padding:0;background:transparent;pointer-events:none}.wb-loading__progress--overlay .agent-whiteboard__shimmer-progress-track{box-shadow:0 1px 4px #0f172a14}.wb-loading__progress--fallback{margin-top:1rem;position:static;width:min(100%,20rem);padding:0 .35rem}.wb-loading__float{position:absolute;font-size:.95rem;opacity:.55;animation:wb-loading-float 4.2s ease-in-out infinite}.wb-loading__float--bulb{filter:drop-shadow(0 0 6px rgba(250,204,21,.45));animation:wb-loading-glow 2.4s ease-in-out infinite}.wb-loading__float--1{top:8%;left:6%;animation-delay:0s}.wb-loading__float--2{top:10%;right:8%;animation-delay:.8s}.wb-loading__float--3{top:22%;left:12%;font-size:.75rem;animation-delay:.3s}.wb-loading__float--4{top:18%;right:14%;font-size:.7rem;animation-delay:1.1s}.wb-loading__float--5{bottom:34%;left:4%;animation-delay:.5s}.wb-loading__float--6{bottom:30%;right:5%;animation-delay:1.4s}.wb-loading__float--7{top:42%;right:3%;animation-delay:.2s}@keyframes wb-loading-float{0%,to{transform:translateY(0) rotate(0)}50%{transform:translateY(-6px) rotate(4deg)}}@keyframes wb-loading-glow{0%,to{opacity:.45;filter:drop-shadow(0 0 4px rgba(250,204,21,.35))}50%{opacity:.85;filter:drop-shadow(0 0 10px rgba(250,204,21,.65))}}.wb-loading__board-shell{position:relative;z-index:1;width:min(100%,22rem);margin:0 auto;padding:.35rem;border-radius:1rem;background:linear-gradient(180deg,#e5e7eb,#d1d5db);box-shadow:0 10px 28px #0f172a1a}.wb-loading__board{position:relative;border-radius:.75rem;background:#fff;padding:.65rem .55rem .5rem;min-height:11.5rem;overflow:hidden}.wb-loading__draw{display:block;width:100%;height:auto}.wb-loading__stroke path{transition:stroke-dashoffset .12s linear,opacity .18s ease}.wb-loading__label{font-family:Comic Sans MS,Segoe Print,Bradley Hand,cursive;font-size:4.5px;fill:#1f2937;transition:opacity .22s ease}.wb-loading__label--tiny{font-size:3.8px}.wb-loading__bubble{font-family:Comic Sans MS,Segoe Print,Bradley Hand,cursive;font-size:3.6px;fill:#374151;font-style:italic}.wb-loading__hero-pencil-bob{animation:wb-loading-pencil-bob 1.1s ease-in-out infinite;transform-origin:center center}@keyframes wb-loading-pencil-bob{0%,to{transform:translateY(0)}50%{transform:translateY(-1.2px)}}.wb-loading__sticky{position:absolute;width:1.35rem;height:1.35rem;border-radius:.15rem;background:linear-gradient(145deg,#fde68a,#fbbf24);box-shadow:0 2px 4px #0f172a1f;animation:wb-loading-stick 2.8s ease-in-out infinite}.wb-loading__sticky--1{top:.55rem;right:1.1rem;transform:rotate(6deg)}.wb-loading__sticky--2{top:.85rem;right:.35rem;transform:rotate(-4deg);animation-delay:.6s}@keyframes wb-loading-stick{0%,to{transform:rotate(6deg) translateY(0)}50%{transform:rotate(8deg) translateY(-2px)}}.wb-loading__sticky--2{animation-name:wb-loading-stick-alt}@keyframes wb-loading-stick-alt{0%,to{transform:rotate(-4deg) translateY(0)}50%{transform:rotate(-6deg) translateY(-2px)}}.wb-loading__copy{position:relative;z-index:1;margin-top:1rem;text-align:center;padding:0 .5rem}.wb-loading__title{margin:0;font-size:clamp(1rem,2.8vw,1.2rem);font-weight:800;color:#111827;letter-spacing:-.02em;transition:opacity .22s ease}.wb-loading__sub{margin:.35rem 0 0;font-size:.875rem;color:#64748b;line-height:1.45;transition:opacity .22s ease}.agent-whiteboard__shimmer-stage{position:relative;width:100%;border-radius:.85rem;overflow:hidden;background:#faf8f3;box-shadow:0 6px 22px #0f172a0f}.agent-whiteboard__shimmer-image{display:block;width:100%;height:auto;-o-object-fit:contain;object-fit:contain;vertical-align:middle}.agent-whiteboard__shimmer-progress-overlay{position:absolute;left:11%;right:11%;bottom:5.2%;pointer-events:none}.agent-whiteboard__shimmer-progress-mask{position:absolute;top:-.12rem;right:-.35rem;bottom:-.12rem;left:-.35rem;border-radius:999px;background:#faf8f3;z-index:0}.agent-whiteboard__shimmer-progress-track{position:relative;z-index:1;height:.52rem;border-radius:999px;background:#ede8dc;box-shadow:inset 0 1px 1px #0f172a0d;overflow:visible}.agent-whiteboard__shimmer-progress-track--fallback{width:100%;max-width:18rem;margin-top:1rem}.agent-whiteboard__shimmer-progress-line{position:absolute;left:0;top:50%;height:.34rem;margin-top:-.17rem;border-radius:999px;background:#8f683f;box-shadow:0 0 0 1px #8f683f1f;will-change:width}.agent-whiteboard__shimmer-pencil{position:absolute;top:50%;transform:translateY(-64%) rotate(-18deg);width:1.85rem;height:1.85rem;filter:drop-shadow(0 1px 2px rgba(15,23,42,.18));will-change:left;z-index:2}.agent-whiteboard__shimmer-pencil svg{display:block;width:100%;height:100%}.agent-whiteboard__shimmer-fallback{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:.5rem;padding:2rem 1rem;text-align:center;border-radius:1rem;background:#fff;border:1px solid #e2e8f0}.agent-whiteboard__shimmer-fallback-sub{margin:0;font-size:.875rem;color:#64748b;line-height:1.45}@media (prefers-reduced-motion: reduce){.agent-whiteboard__shimmer-progress-line,.agent-whiteboard__shimmer-pencil{will-change:auto}.wb-loading__float,.wb-loading__hero-pencil-bob,.wb-loading__sticky{animation:none!important}.wb-loading__stroke path{stroke-dashoffset:0!important;opacity:1!important}}.agent-whiteboard__verbatim-frame.is-ready{opacity:1}.revision-interactive-html,.chapter-part-interactive-html,.chapter-part-rich--interactive{width:100%;max-width:100%;min-width:0}.chapter-parts-content--agent-html .revision-interactive-html .verbatim-html-scroll-wrap,.chapter-parts-content--agent-html .revision-interactive-html .agent-whiteboard__verbatim-frame,.chapter-parts-content--agent-html .chapter-part-interactive-html .verbatim-html-scroll-wrap,.chapter-parts-content--agent-html .chapter-part-interactive-html .agent-whiteboard__verbatim-frame{border-radius:1rem}.agent-chat-slide-html .slide-agent-html,.agent-chat-slide-html .slide-rich-doc.slide-agent-html{width:100%;max-width:100%;min-height:0;box-sizing:border-box;pointer-events:auto;overflow-x:auto;overflow-wrap:anywhere;word-break:break-word}.agent-chat-slide-html .slide-agent-html button,.agent-chat-slide-html .slide-agent-html [role=button],.agent-chat-slide-html .slide-agent-html [onclick],.agent-chat-slide-html .slide-agent-html [class*=btn],.agent-chat-slide-html .slide-agent-html [class*=button],.agent-chat-slide-html .slide-agent-html [class*=tab],.agent-chat-slide-html .slide-agent-html [class*=pill],.agent-chat-slide-html .slide-agent-html [class*=chip],.agent-chat-slide-html .slide-agent-html [data-action],.agent-chat-slide-html .slide-agent-html [data-tab],.agent-chat-slide-html .slide-agent-html [data-exercise]{-webkit-text-fill-color:unset;background-clip:unset;-webkit-background-clip:unset;pointer-events:auto!important;cursor:pointer}.agent-chat-slide-html .slide-agent-html img,.agent-chat-slide-html .slide-agent-html svg,.agent-chat-slide-html .slide-agent-html table{max-width:100%;height:auto}.agent-whiteboard__seed{display:flex;flex-direction:column;gap:.75rem}.agent-whiteboard__seed-summary{margin:0;padding:.75rem .85rem;border-radius:.65rem;background:#fffbebf2;border:1px solid #fde68a;color:#78350f;font-size:.9rem;line-height:1.5}.agent-whiteboard__seed-html{color:#0f172a}.agent-whiteboard__seed-fallback{margin:0;font-size:1.05rem;font-weight:700;color:#0f172a}.agent-whiteboard__seed-hint{margin:.25rem 0 0;font-size:.78rem;color:#64748b;line-height:1.45}.agent-whiteboard__waiting{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:.35rem;text-align:center;height:100%;min-height:12rem;color:#475569;border-radius:1.125rem}.agent-whiteboard__waiting-dots{display:inline-flex;gap:.3rem;margin-bottom:.35rem}.agent-whiteboard__waiting-dots span{width:.5rem;height:.5rem;border-radius:999px;background:#f59e0b;animation:chapter-parts-agent-voice-pulse 1.1s ease-in-out infinite}.agent-whiteboard__waiting-dots span:nth-child(2){animation-delay:.15s}.agent-whiteboard__waiting-dots span:nth-child(3){animation-delay:.3s}.agent-whiteboard__waiting-title{margin:0;font-size:1rem;font-weight:800;color:#0f172a}.agent-whiteboard__waiting--loading{background:#ffffff8c;border-radius:.75rem;padding:1.5rem 1rem}.agent-whiteboard__waiting--loading .agent-whiteboard__waiting-dots span{background:#d97706;width:.6rem;height:.6rem}.agent-whiteboard__sync{padding:.55rem 1rem .35rem;border-bottom:1px solid rgba(226,232,240,.9);background:#fffbeb8c}.chapter-parts-agent-sidebar__tutor-sync{margin:.35rem 0 .75rem}.tutor-sync{display:flex;flex-direction:column;gap:.55rem;padding:.85rem .9rem;border-radius:16px;border:1px solid rgba(15,23,42,.06);background:linear-gradient(180deg,#fffbeb,#fff);box-shadow:0 2px 10px #0f172a08}.tutor-sync--compact{padding:.35rem 0;border:none;background:transparent;gap:.4rem}.tutor-sync--inline{display:flex;align-items:center;gap:.45rem;padding:0;border:none;background:transparent;min-width:0}.tutor-sync--inline .tutor-sync__phase-icon{font-size:.95rem;line-height:1;flex-shrink:0}.tutor-sync--inline .tutor-sync__phase-label{font-size:.72rem;white-space:nowrap;flex-shrink:0}.tutor-sync__progress--inline{display:flex;align-items:center;gap:.4rem;flex:1 1 auto;min-width:0}.tutor-sync__progress--inline .tutor-sync__progress-track{flex:1 1 auto;min-width:2.5rem;height:.28rem}.tutor-sync__progress-pct{font-size:.62rem;font-weight:700;color:#78716c;white-space:nowrap;flex-shrink:0}.tutor-sync__phase{display:flex;align-items:flex-start;gap:.55rem}.tutor-sync__phase-icon{font-size:1.1rem;line-height:1.2}.tutor-sync__phase-label{margin:0;font-size:.86rem;font-weight:800;color:#0f172a}.tutor-sync__phase-sub{margin:.15rem 0 0;font-size:.72rem;color:#78716c;display:flex;align-items:center;gap:.4rem}.tutor-sync__stage{display:flex;align-items:center;justify-content:space-between;gap:.5rem;padding:.35rem .5rem;border-radius:.55rem;background:#ecfdf5e6;border:1px solid #a7f3d0}.tutor-sync__stage-label{font-size:.62rem;font-weight:800;letter-spacing:.06em;text-transform:uppercase;color:#047857}.tutor-sync__stage-value{display:inline-flex;align-items:center;gap:.35rem;font-size:.8rem;font-weight:700;color:#065f46}.tutor-sync__stage-dot{width:.5rem;height:.5rem;border-radius:999px;background:#10b981;animation:tutor-stage-pulse 1.8s ease-in-out infinite}@keyframes tutor-stage-pulse{0%,to{opacity:.55;transform:scale(.85)}50%{opacity:1;transform:scale(1)}}.tutor-sync__progress-meta{display:flex;justify-content:space-between;font-size:.65rem;font-weight:700;letter-spacing:.04em;text-transform:uppercase;color:#92400e;margin-bottom:.2rem}.tutor-sync__progress-track{height:.35rem;border-radius:999px;background:#fef3c7;overflow:hidden}.tutor-sync__progress-fill{height:100%;border-radius:999px;background:linear-gradient(90deg,#f59e0b,#ea580c);transition:width .45s ease}.tutor-sync__checklist{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:.28rem}.tutor-sync__check-item{display:flex;align-items:center;gap:.4rem;font-size:.75rem;color:#94a3b8;transition:color .25s ease,opacity .25s ease}.tutor-sync__check-item.is-done{color:#15803d}.tutor-sync__check-item.is-active{color:#b45309;font-weight:600}.tutor-sync__check-mark{width:1rem;text-align:center;font-weight:800}.tutor-sync__wave{display:inline-flex;align-items:flex-end;gap:2px;height:.85rem}.tutor-sync__wave i{display:block;width:2px;height:40%;border-radius:2px;background:#f59e0b;animation:tutor-wave .9s ease-in-out infinite}.tutor-sync__wave i:nth-child(2){animation-delay:.12s;height:70%}.tutor-sync__wave i:nth-child(3){animation-delay:.24s;height:100%}.tutor-sync__wave i:nth-child(4){animation-delay:.36s;height:55%}@keyframes tutor-wave{0%,to{transform:scaleY(.45);opacity:.55}50%{transform:scaleY(1);opacity:1}}.tutor-agent-thinking-msg{margin:.35rem 0;padding:.85rem .95rem;border-radius:16px;border:1px solid rgba(15,23,42,.06);background:#fffbeb;box-shadow:0 2px 10px #0f172a08}.tutor-agent-thinking-msg__title{margin:0;font-size:.85rem;font-weight:700;color:#92400e}.tutor-agent-thinking-msg__hint{margin:.25rem 0 0;font-size:.72rem;color:#a8a29e}.tutor-reveal{display:flex;flex-direction:column;gap:.65rem;padding-bottom:1rem}.tutor-reveal__section{position:relative;padding:.75rem .85rem;border-radius:.75rem;border:1px solid transparent;border-left:3px solid transparent;background:#ffffff8c;opacity:0;transform:translateY(10px);animation:tutor-fade-up .45s ease forwards;transition:background .35s ease,border-color .35s ease,box-shadow .35s ease;scroll-margin-top:12%}.tutor-reveal__section.is-active{background:#fef3c7bf;border-left-color:#f59e0b;box-shadow:0 0 0 1px #f59e0b2e,0 8px 22px #f59e0b1f}.tutor-reveal__section.is-writing{border-left-color:#0f172a;background:#ffffffeb;box-shadow:0 0 0 1px #0f172a0f,0 10px 24px #0f172a0f}.tutor-reveal__writing-bar{display:inline-flex;align-items:center;gap:.4rem;margin-bottom:.45rem;padding:.2rem .5rem;border-radius:999px;background:#0f172a;color:#f8fafc;font-size:.65rem;font-weight:700;letter-spacing:.04em;text-transform:uppercase}.tutor-pencil{position:relative;display:inline-flex;align-items:center;color:#fbbf24;animation:tutor-pencil-write .7s ease-in-out infinite}.tutor-pencil__trail{position:absolute;left:100%;top:70%;width:.85rem;height:2px;margin-left:2px;border-radius:2px;background:linear-gradient(90deg,#fbbf24e6,#fbbf2400);transform-origin:left center;animation:tutor-pencil-trail .7s ease-in-out infinite}@keyframes tutor-pencil-write{0%,to{transform:translate(0) rotate(-12deg)}50%{transform:translate(3px,2px) rotate(-4deg)}}@keyframes tutor-pencil-trail{0%,to{opacity:.35;transform:scaleX(.55)}50%{opacity:1;transform:scaleX(1)}}.tutor-reveal__scroll-hint{margin:.35rem 0 0;padding:.35rem .15rem;font-size:.68rem;color:#94a3b8;text-align:center}@keyframes tutor-fade-up{to{opacity:1;transform:translateY(0)}}.tutor-reveal__title{margin:0;font-size:1.15rem;font-weight:800;color:#0f172a;line-height:1.3}.tutor-reveal__summary{margin:.4rem 0 0;font-size:.9rem;color:#475569;line-height:1.5}.tutor-reveal__block-title{margin:0;font-size:.95rem;font-weight:800;color:#1e293b}.tutor-reveal__label{margin:0 0 .35rem;font-size:.65rem;font-weight:800;letter-spacing:.06em;text-transform:uppercase;color:#94a3b8}.tutor-reveal__para{margin:0;font-size:.88rem;line-height:1.55;color:#334155}.tutor-reveal__strong{font-weight:650;color:#0f172a}.tutor-reveal__step-num{margin:0 0 .25rem;font-size:.78rem;font-weight:800;color:#b45309}.tutor-reveal__bullets{margin:0;padding:0 0 0 1.1rem;font-size:.86rem;color:#334155;line-height:1.45}.tutor-reveal__answer{margin:.45rem 0 0;padding:.4rem .55rem;border-radius:.45rem;background:#ecfdf5;color:#065f46;font-size:.84rem;font-weight:600}.tutor-reveal__meta{margin:.25rem 0 0;font-size:.68rem;font-weight:700;text-transform:uppercase;letter-spacing:.04em;color:#b45309}.chapter-parts-agent-voice{margin:0;border:none;border-radius:0;padding:0;background:transparent;display:flex;flex-direction:column;flex:1;min-height:0}.chapter-parts-agent-voice__main{display:flex;flex-direction:column;flex:1;min-height:0}.chapter-parts-agent-voice__sink{display:none}.chapter-parts-agent-voice__state{font-size:.7rem;text-transform:uppercase;letter-spacing:.06em;color:#64748b;font-weight:700;margin-bottom:.45rem;flex-shrink:0}.chapter-parts-agent-voice__state.is-live{color:#b45309}.chapter-parts-agent-voice__waiting{display:flex;align-items:flex-start;gap:.65rem;margin:0 0 .55rem;padding:.65rem .7rem;border-radius:.65rem;border:1px solid #fde68a;background:linear-gradient(180deg,#fffbeb,#fff7ed);flex-shrink:0}.chapter-parts-agent-voice__waiting-dots{display:inline-flex;align-items:center;gap:.22rem;margin-top:.35rem;flex-shrink:0}.chapter-parts-agent-voice__waiting-dots span{width:.38rem;height:.38rem;border-radius:999px;background:#d97706;animation:chapter-parts-agent-voice-pulse 1.1s ease-in-out infinite}.chapter-parts-agent-voice__waiting-dots span:nth-child(2){animation-delay:.15s}.chapter-parts-agent-voice__waiting-dots span:nth-child(3){animation-delay:.3s}@keyframes chapter-parts-agent-voice-pulse{0%,80%,to{opacity:.35;transform:translateY(0)}40%{opacity:1;transform:translateY(-2px)}}.chapter-parts-agent-voice__waiting-copy{min-width:0}.chapter-parts-agent-voice__waiting-title{margin:0;font-size:.82rem;font-weight:800;color:#92400e;line-height:1.3}.chapter-parts-agent-voice__waiting-sub{margin:.15rem 0 0;font-size:.7rem;color:#a16207;line-height:1.4}.chapter-parts-agent-voice__transcript-waiting{margin-top:.35rem;padding:.55rem .65rem;border-radius:.6rem;border:1px dashed #fcd34d;background:#fffbeb}.chapter-parts-agent-voice__transcript-waiting-bar{height:.35rem;width:42%;border-radius:999px;background:#fde68a;margin-bottom:.4rem;animation:chapter-parts-agent-voice-shimmer 1.2s ease-in-out infinite}.chapter-parts-agent-voice__transcript-waiting p{margin:0;font-size:.72rem;font-weight:600;color:#92400e}@keyframes chapter-parts-agent-voice-shimmer{0%,to{opacity:.45}50%{opacity:1}}.chapter-parts-agent-voice__actions{display:flex;gap:.6rem}.chapter-parts-agent-voice__media{display:flex;justify-content:center;align-items:flex-start;gap:2.4rem;margin:0;padding:.35rem .5rem .55rem}.chapter-parts-agent-controls-card{flex-shrink:0;margin-top:auto;border:1px solid rgba(15,23,42,.06);border-radius:18px;padding:.9rem .95rem;background:#fff;box-shadow:0 2px 12px #0f172a0a}.chapter-parts-agent-controls-card__actions{display:flex;gap:.55rem}.chapter-parts-agent-session-btn{flex:1;border:none;border-radius:14px;padding:.78rem .9rem;font-size:.88rem;font-weight:750;background:#ffc02e;color:#0f172a;cursor:pointer;transition:background .15s ease,transform .15s ease}.chapter-parts-agent-session-btn:hover:not(:disabled){background:#f0b010}.chapter-parts-agent-session-btn:disabled{opacity:.6;cursor:not-allowed}.chapter-parts-agent-voice__media-btn{display:flex;flex-direction:column;align-items:center;gap:.4rem;border:none;background:transparent;padding:.25rem;color:#0f172a;cursor:pointer}.chapter-parts-agent-voice__media-btn:disabled{opacity:.4;cursor:not-allowed}.chapter-parts-agent-voice__media-icon{display:inline-flex;width:2.6rem;height:2.6rem;align-items:center;justify-content:center}.chapter-parts-agent-voice__media-icon svg{width:2.35rem;height:2.35rem}.chapter-parts-agent-voice__media-label{font-size:.92rem;font-weight:700;color:#0f172a;line-height:1}.chapter-parts-agent-voice__media-btn.is-on .chapter-parts-agent-voice__media-label{color:#0f172a}.chapter-parts-agent-voice__media-btn.is-off .chapter-parts-agent-voice__media-label{color:#334155}.chapter-parts-agent-voice__start{width:100%;margin:0 0 .65rem;border:none;border-radius:.65rem;padding:.7rem .85rem;font-size:.9rem;font-weight:800}.chapter-parts-agent-voice__btn{flex:1;border:1px solid #cbd5e1;border-radius:.65rem;padding:.65rem .5rem;background:#f8fafc;color:#0f172a;font-weight:700;font-size:.82rem;display:flex;flex-direction:column;align-items:center;gap:.15rem;transition:border-color .15s ease,background .15s ease,box-shadow .15s ease}.chapter-parts-agent-voice__btn:hover:not(:disabled){border-color:#94a3b8}.chapter-parts-agent-voice__btn.is-active{border-color:#f59e0b;background:#fffbeb;box-shadow:0 0 0 2px #f59e0b33}.chapter-parts-agent-voice__btn:disabled{opacity:.6;cursor:not-allowed}.chapter-parts-agent-voice__btn-icon{font-size:1rem;line-height:1}.chapter-parts-agent-voice__btn-label{font-size:.86rem;font-weight:800}.chapter-parts-agent-voice__btn-sub{font-size:.66rem;font-weight:600;color:#64748b}.chapter-parts-agent-voice__error{margin:.45rem 0 0;font-size:.72rem;color:#b91c1c;line-height:1.4}.chapter-parts-agent-voice__hint{margin:.55rem 0 0;font-size:.72rem;color:#64748b}.chapter-parts-agent-voice__close{width:100%;margin-top:.55rem;border:1px solid #fecaca;border-radius:.55rem;background:#fff1f2;color:#b91c1c;font-size:.78rem;font-weight:700;padding:.45rem .6rem;cursor:pointer;transition:background .15s ease,border-color .15s ease}.chapter-parts-agent-voice__close:hover:not(:disabled){background:#ffe4e6;border-color:#fca5a5}.chapter-parts-agent-voice__close:disabled{opacity:.65;cursor:not-allowed}.chapter-parts-agent-chat-panel{display:flex;flex-direction:column;flex:1;min-height:0;margin:0}.chapter-parts-agent-chat-panel__main{display:flex;flex-direction:column;flex:1;min-height:0;overflow:hidden}.chapter-parts-agent-chat-panel__status{font-size:.7rem;text-transform:uppercase;letter-spacing:.06em;color:#64748b;font-weight:700;margin-bottom:.45rem;flex-shrink:0}.chapter-parts-agent-chat-panel__error{margin:0 0 .45rem;font-size:.72rem;color:#b91c1c;line-height:1.4}.chapter-parts-agent-chat-panel__start{width:100%;margin-top:.55rem;font-size:.82rem;padding:.5rem .75rem}.chapter-parts-agent-chat-panel__followup{display:block;width:100%;margin:0 0 .65rem;padding:.7rem .8rem;text-align:left;border:1px solid rgba(15,23,42,.06);border-radius:16px;background:#fffbeb;box-shadow:0 2px 10px #0f172a08;cursor:pointer;transition:background .15s ease,box-shadow .15s ease}.chapter-parts-agent-chat-panel__followup:hover{background:#fef3c7;box-shadow:0 4px 14px #0f172a0d}.chapter-parts-agent-chat-panel__followup-label{display:block;font-size:.62rem;font-weight:700;text-transform:uppercase;letter-spacing:.05em;color:#92400e;margin-bottom:.15rem}.chapter-parts-agent-chat-panel__followup-text{display:block;font-size:.78rem;line-height:1.4;color:#78350f}.chapter-parts-agent-chat__composer input:disabled{background:#f1f5f9;color:#94a3b8;cursor:not-allowed}.chapter-parts-agent-chat{flex:1;overflow-y:auto;padding:0 0 .75rem;display:flex;flex-direction:column;gap:.55rem;min-height:0}.chapter-parts-agent-chat--structured{gap:.75rem}.chapter-parts-agent-chat__message{display:flex;flex-direction:column;gap:.2rem}.chapter-parts-agent-chat__message--user{align-items:flex-end}.chapter-parts-agent-chat__message--agent{align-items:flex-start}.chapter-parts-agent-chat__time{display:block;font-size:.62rem;font-weight:600;letter-spacing:.02em;color:#94a3b8;line-height:1.2;padding:0 .15rem}.chapter-parts-agent-chat__time--left{text-align:left}.chapter-parts-agent-chat__time--right{text-align:right}.chapter-parts-agent-chat--structured .chapter-parts-agent-chat__bubble.is-user,.chapter-parts-agent-chat--structured .chapter-parts-agent-chat__bubble.is-agent{max-width:none;border:none;background:transparent;padding:0}.chapter-parts-agent-voice__transcript{margin:0;border:1px solid rgba(15,23,42,.06);border-radius:16px;background:#f8fafc;overflow:hidden;display:flex;flex-direction:column;flex:1;min-height:0}.chapter-parts-agent-voice__transcript-label{margin:0;padding:.55rem .85rem;font-size:.68rem;font-weight:700;text-transform:uppercase;letter-spacing:.05em;color:#94a3b8;border-bottom:1px solid rgba(15,23,42,.05);background:#ffffffb3;flex-shrink:0}.chapter-parts-agent-voice__transcript-scroll{flex:1;min-height:0;max-height:none;overflow-y:auto;padding:.7rem .75rem;margin:0}.chapter-parts-agent-voice__transcript-empty{margin:0;padding:.5rem;font-size:.72rem;color:#64748b;line-height:1.45}.chapter-parts-agent-chat__bubble{max-width:88%;border-radius:.72rem;padding:.55rem .65rem;font-size:.82rem;line-height:1.42;white-space:pre-wrap}.chapter-parts-agent-chat__bubble.is-agent{align-self:flex-start;background:#f8fafc;border:1px solid #e2e8f0;color:#1e293b}.chapter-parts-agent-chat__bubble.is-user{align-self:flex-end;background:#fef3c7;border:1px solid #fcd34d;color:#78350f}.chapter-parts-agent-chat__composer{display:flex;gap:.55rem;padding:0 0 .35rem;border-top:none;background:transparent}.chapter-parts-agent-chat__composer input{flex:1;border:1px solid rgba(15,23,42,.08);border-radius:14px;font-size:.84rem;padding:.65rem .85rem;background:#fff;transition:border-color .15s ease,box-shadow .15s ease}.chapter-parts-agent-chat__composer input:focus{outline:none;border-color:#0f172a2e;box-shadow:0 0 0 3px #0f172a0a}.chapter-parts-agent-chat__composer .btn-primary{padding:.65rem .95rem;font-size:.8rem;border-radius:14px;background:#ffc02e;color:#0f172a;font-weight:750}@media (max-width: 1200px){.chapter-parts-split__main .chapter-parts-agent-sidebar{width:min(24rem,100%);padding:20px 18px 18px}.chapter-parts-tutor-shell .chapter-parts-agent-sidebar{flex:0 0 min(24rem,44%);width:min(24rem,44%)}.chapter-parts-tutor-shell.has-whiteboard.is-full-split .chapter-parts-agent-sidebar{flex:0 0 min(22rem,36%);width:min(22rem,36%);max-width:36%}.chapter-parts-agent-sidebar{width:min(24rem,calc(40vw - .5rem));right:1rem;top:4.75rem;bottom:1rem;border-radius:22px;padding:20px 18px 18px}}@media (max-width: 960px){.chapter-parts-split__main .chapter-parts-agent-sidebar{width:100%;border-radius:1rem;padding:20px 16px 16px}.chapter-parts-tutor-shell.is-main-column,.chapter-parts-agent-backdrop.is-main-column{grid-column:1;grid-row:2}.chapter-parts-tutor-shell.is-full-split{grid-column:1;grid-row:1 / -1}.chapter-parts-tutor-shell.has-whiteboard{flex-direction:column;gap:.75rem}.chapter-parts-tutor-shell.has-whiteboard .agent-whiteboard{flex:1 1 42%;min-height:0;border-radius:1.125rem}.chapter-parts-tutor-shell.has-whiteboard .agent-whiteboard__bar{border-top-left-radius:1.125rem;border-top-right-radius:1.125rem}.chapter-parts-tutor-shell.has-whiteboard .chapter-parts-agent-sidebar{flex:1 1 58%;width:100%;max-width:none;border-radius:1.125rem}.chapter-parts-slide-dock{flex-wrap:nowrap;gap:.4rem;padding:.3rem .65rem calc(.3rem + env(safe-area-inset-bottom,0px)) .65rem}.chapter-parts-slide-dock__side--end{padding-right:max(.5rem,env(safe-area-inset-right,0px))}.chapter-parts-slide-dock__side--end .chapter-parts-slide-dock__doubt{min-height:2rem;padding:.35rem .7rem .35rem .6rem}.chapter-parts-slide-dock__nav-text{display:none}.chapter-parts-slide-dock__nav-btn{min-width:2.15rem;min-height:2rem;padding:.3rem .55rem}.chapter-parts-slide-dock__doubt-label{display:none}.chapter-parts-slide-dock__doubt{min-width:2.15rem;min-height:2rem;padding:.35rem .7rem .35rem .6rem;width:auto;border-radius:999px}.chapter-parts-tutor-shell--quiz.has-whiteboard.is-full-split{left:.75rem;right:.75rem;top:4.75rem;bottom:.75rem}.chapter-parts-agent-sidebar{top:.85rem;right:.75rem;bottom:.85rem;height:auto;width:min(22rem,calc(100vw - 1.5rem));border-radius:22px;padding:20px 16px 16px}}.tests-page-wrap.has-slide-dock{padding-bottom:3.15rem}.tests-page-wrap.is-agent-open{height:100vh;overflow:hidden;padding-bottom:0}.tests-page-wrap.is-agent-open>.bg-white{height:100vh;min-height:0!important;overflow:hidden;display:flex;flex-direction:column}.tests-page-wrap.is-agent-open .quiz-page-content{height:calc(100vh - var(--app-top-navbar-offset, calc(3.25rem + 1px) ));min-height:0!important;overflow:hidden;padding-top:0!important;padding-bottom:0!important;box-sizing:border-box;flex:1;display:flex;flex-direction:column}.quiz-page-content.is-agent-open{padding-top:0}.quiz-agent-shell{max-width:none;width:100%;height:100%;min-height:0;display:flex;flex-direction:column;flex:1}.test-layout.has-quiz-agent,.test-layout.has-quiz-whiteboard{position:relative;align-items:stretch;height:100%;min-height:0;overflow:hidden}.test-layout.has-quiz-whiteboard{grid-template-columns:minmax(0,1fr);gap:0;padding:0}.test-layout.has-quiz-whiteboard .test-sidebar{display:none}.test-layout.has-quiz-agent .test-main-area{position:relative;align-self:stretch;min-height:0;height:100%;overflow:hidden}.test-layout.has-quiz-agent .chapter-parts-agent-backdrop.is-main-column{position:fixed;top:calc(var(--app-top-navbar-offset, calc(2.625rem + 1px) ) + var(--mp-tutor-top-gap, .35rem));left:0;right:0;bottom:0;z-index:240}.test-layout.has-quiz-agent .chapter-parts-tutor-shell.is-main-column,.test-layout.has-quiz-agent .chapter-parts-tutor-shell.is-full-split{position:fixed;top:calc(var(--app-top-navbar-offset, calc(2.625rem + 1px) ) + var(--mp-tutor-top-gap, .35rem));left:var(--mp-tutor-edge, .75rem);right:var(--mp-tutor-edge, .75rem);bottom:0;z-index:250;width:auto;height:auto;max-height:none}.tests-page-wrap.is-agent-open .chapter-parts-slide-dock{z-index:110}.test-layout.has-quiz-agent .chapter-parts-tutor-shell.has-whiteboard.is-full-split{overflow:hidden;gap:var(--mp-tutor-edge, .75rem);padding:0 var(--mp-tutor-edge, .75rem);box-sizing:border-box}.test-layout.has-quiz-agent .chapter-parts-tutor-shell.is-main-column:not(.has-whiteboard){padding-right:var(--mp-tutor-edge, .75rem);box-sizing:border-box}.test-layout.has-quiz-agent .chapter-parts-tutor-shell .chapter-parts-agent-sidebar--mp-theme{flex:0 0 var(--mp-tutor-chat-width, min(25rem, 30%))!important;width:var(--mp-tutor-chat-width, min(25rem, 30%))!important;max-width:var(--mp-tutor-chat-width, min(25rem, 30%))!important}.test-layout.has-quiz-agent .chapter-parts-tutor-shell .chapter-parts-agent-sidebar{position:relative!important;top:auto!important;right:auto!important;bottom:auto!important;left:auto!important;transform:none!important;height:100%;max-height:100%;min-height:0}.test-layout.has-quiz-agent .chapter-parts-tutor-shell .agent-whiteboard{position:relative!important;inset:auto!important;height:100%;min-height:0;flex:1 1 auto;min-width:0}@media (max-width: 1100px){.test-layout.has-quiz-agent .chapter-parts-tutor-shell.has-whiteboard.is-full-split{flex-direction:column;gap:.85rem}}@media (max-width: 900px){.test-layout.has-quiz-agent,.test-layout.has-quiz-whiteboard{min-height:0}.tests-page-wrap.is-agent-open .quiz-page-content{height:calc(100vh - var(--app-top-navbar-offset, calc(3rem + 1px) ))}}.doubt-session-page{background:linear-gradient(160deg,#fffbeb,#fff 45%)}.doubt-session-page__header{margin-bottom:1.25rem}.doubt-session-page__title{margin:0 0 .35rem;font-size:1.65rem;font-weight:850;color:#111827}.doubt-session-page__subtitle{margin:0;color:#4b5563;line-height:1.55}.doubt-session-page__meta{margin:.5rem 0 0;font-size:.85rem;color:#6b7280}.doubt-session-page__meta code{font-size:.82rem;background:#f3f4f6;padding:.1rem .35rem;border-radius:.25rem}.doubt-session__room{border:1px solid #e5e7eb;border-radius:1rem;background:#fff;box-shadow:0 10px 30px #1118270f;overflow:hidden}.doubt-session__error{margin:0;padding:.85rem 1rem;background:#fef2f2;color:#b91c1c;border-bottom:1px solid #fecaca;font-size:.92rem}.doubt-session__grid{min-height:360px;padding:1rem;display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:.85rem;background:#0f172a}.doubt-session__placeholder{grid-column:1 / -1;display:flex;align-items:center;justify-content:center;color:#cbd5e1;text-align:center;min-height:280px}.doubt-session__tile{background:#1e293b;border-radius:.75rem;overflow:hidden;border:1px solid #334155;display:flex;flex-direction:column}.doubt-session__tile-label{padding:.45rem .65rem;font-size:.78rem;font-weight:700;color:#e2e8f0;background:#0f172aa6}.doubt-session__tile-media{position:relative;min-height:160px;display:flex;align-items:center;justify-content:center;background:#0b1220}.doubt-session__media{width:100%;height:100%;max-height:220px;-o-object-fit:cover;object-fit:cover;display:block}.doubt-session__controls{display:flex;flex-wrap:wrap;gap:.65rem;padding:1rem;border-top:1px solid #e5e7eb;background:#fafafa}.doubt-session__grid--audio{background:#0f172a;min-height:280px;padding:1rem;display:flex;flex-direction:column;gap:.85rem}.doubt-session__audio-sink{position:absolute;width:0;height:0;overflow:hidden;opacity:0;pointer-events:none}.doubt-session__voice-status{display:flex;align-items:center;gap:.55rem;padding:.7rem .85rem;border-radius:.65rem;font-size:.9rem;font-weight:600;background:#1e293b;color:#cbd5e1;border:1px solid #334155}.doubt-session__voice-status.is-live{border-color:#10b981;color:#d1fae5}.doubt-session__voice-status.is-muted{border-color:#f59e0b;color:#fde68a}.doubt-session__voice-dot{width:.55rem;height:.55rem;border-radius:999px;background:#64748b;flex-shrink:0}.doubt-session__voice-status.is-live .doubt-session__voice-dot{background:#34d399;box-shadow:0 0 0 4px #34d39940}.doubt-session__voice-status.is-muted .doubt-session__voice-dot{background:#fbbf24}.doubt-session__agent-status{margin:0;font-size:.85rem;color:#94a3b8}.doubt-session__participant-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:.5rem}.doubt-session__participant-row{display:flex;align-items:center;gap:.65rem;padding:.7rem .85rem;border-radius:.65rem;background:#1e293b;border:1px solid #334155}.doubt-session__participant-avatar{font-size:1.1rem}.doubt-session__participant-name{flex:1;font-weight:700;color:#f1f5f9;font-size:.92rem}.doubt-session__participant-meta{font-size:.78rem;color:#94a3b8}.doubt-session__leave{margin-left:auto;color:#b91c1c;border-color:#fecaca}.doubt-session__ended{grid-column:1 / -1;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;min-height:280px;padding:2rem 1.5rem;color:#e2e8f0}.doubt-session__ended-icon{width:3rem;height:3rem;border-radius:999px;display:flex;align-items:center;justify-content:center;background:#10b981;color:#fff;font-size:1.35rem;font-weight:800;margin-bottom:.85rem}.doubt-session__ended-title{margin:0 0 .35rem;font-size:1.25rem;font-weight:800;color:#f8fafc}.doubt-session__ended-text{margin:0;max-width:28rem;color:#cbd5e1;line-height:1.55}.chapter-sidebar .doubt-session-sidebar-cta{display:block;width:100%;margin:.25rem 0 .5rem;padding:.75rem .9rem;border:none;border-radius:.75rem;background:linear-gradient(135deg,#111827,#1f2937);color:#fff;font-size:.88rem;font-weight:750;text-align:left;cursor:pointer;transition:transform .15s ease,box-shadow .15s ease;box-shadow:0 8px 20px #1118272e}.chapter-sidebar .doubt-session-sidebar-cta:hover{transform:translateY(-1px);box-shadow:0 10px 24px #11182738}.chapter-sidebar .doubt-session-sidebar-cta__hint{display:block;margin-top:.2rem;font-size:.72rem;font-weight:500;color:#d1d5db}.doubt-session__agent-status.is-speaking{color:#6ee7b7;font-weight:700}.doubt-session__debug{margin:0;font-size:.78rem;color:#64748b;font-family:ui-monospace,monospace}.doubt-session__enable-audio,.doubt-session__retry-agent{align-self:flex-start}.authPage{min-height:100vh;display:flex;align-items:center;justify-content:center;background:#f5f6fb;padding:24px}.authCard{width:420px;max-width:95%;background:#fff;border-radius:16px;padding:28px;box-shadow:0 10px 25px #00000014;border:1px solid #eee}.brandRow{display:flex;align-items:center;gap:10px;margin-bottom:14px}.brandLogo{font-size:26px}.brandText{font-size:20px;font-weight:800}.brandMy{margin-right:4px}.brandPencil{color:#f4b400}.authTitle{margin:0;font-size:28px}.authSubtitle{margin:6px 0 18px;color:#6b7280}.authError{margin:0 0 14px;padding:.7rem .85rem;border-radius:.65rem;background:#fef2f2;border:1px solid #fecaca;color:#b91c1c;font-size:.88rem;font-weight:600;line-height:1.4}.modeRow{display:flex;justify-content:center;gap:10px;margin-bottom:14px}.modeLink{background:transparent;border:none;cursor:pointer;font-weight:700;color:#6b7280}.modeActive{color:#111827;text-decoration:underline}.modeDot{color:#9ca3af}.fieldLabel{display:block;font-weight:700;margin:12px 0 6px;color:#111827}.phoneGroup{display:flex;align-items:center;border:1px solid #e5e7eb;border-radius:12px;overflow:hidden}.countryCode{padding:12px;background:#f9fafb;border-right:1px solid #e5e7eb;font-weight:700}.phoneInput{flex:1;border:none;outline:none;padding:12px}.otpInput{width:100%;border:1px solid #e5e7eb;border-radius:12px;padding:12px;outline:none}.primaryBtn{width:100%;margin-top:14px;background:#111827;color:#fff;border:none;border-radius:12px;padding:12px 14px;font-weight:800;cursor:pointer}.linkBtn{width:100%;margin-top:10px;background:transparent;border:none;color:#2563eb;cursor:pointer;font-weight:700}.termsText{margin-top:16px;font-size:13px;color:#6b7280;text-align:center}.termsLink{color:#111827;font-weight:700}.signupWrap{min-height:100vh;display:grid;grid-template-columns:1.2fr 1fr;background:#fff8e6}.signupLeft{padding:60px}.signupRight{display:flex;align-items:center;justify-content:center;padding:40px}.signupCard{width:520px;max-width:95%;background:#fff;border-radius:16px;box-shadow:0 10px 30px #00000014;padding:28px;border:1px solid #eee}.signupTitle{font-size:36px;margin:0}.signupSubtitle{margin-top:6px;color:#6b7280}.signupBadge{margin:14px 0 18px;display:inline-block;padding:10px 14px;border-radius:10px;border:1px solid #b7f3c6;background:#eafff0;color:#15803d;font-weight:600}.signupBrand{display:flex;align-items:center;gap:10px;margin-bottom:24px}.brandLogoBig{font-size:34px}.heroTitle{font-size:56px;line-height:1;margin:0 0 14px}.heroAccent{color:#f4b400}.heroSub{font-size:18px;color:#4b5563;margin:0 0 26px}.featureCard{display:flex;gap:14px;align-items:center;padding:16px;border-radius:14px;background:#fff;border:1px solid #eee;margin-top:14px}.featureIcon{width:44px;height:44px;border-radius:999px;display:flex;align-items:center;justify-content:center;background:#f4b400}.featureTitle{font-weight:800}.featureDesc{color:#6b7280;font-size:14px}.grid2{display:grid;grid-template-columns:1fr 1fr;gap:14px}.tosRow{display:flex;align-items:flex-start;gap:10px;margin:14px 0 18px;color:#374151;font-size:14px}@media (max-width: 980px){.signupWrap{grid-template-columns:1fr}.signupLeft{padding:30px}}*,:before,:after{--tw-border-spacing-x: 0;--tw-border-spacing-y: 0;--tw-translate-x: 0;--tw-translate-y: 0;--tw-rotate: 0;--tw-skew-x: 0;--tw-skew-y: 0;--tw-scale-x: 1;--tw-scale-y: 1;--tw-pan-x: ;--tw-pan-y: ;--tw-pinch-zoom: ;--tw-scroll-snap-strictness: proximity;--tw-gradient-from-position: ;--tw-gradient-via-position: ;--tw-gradient-to-position: ;--tw-ordinal: ;--tw-slashed-zero: ;--tw-numeric-figure: ;--tw-numeric-spacing: ;--tw-numeric-fraction: ;--tw-ring-inset: ;--tw-ring-offset-width: 0px;--tw-ring-offset-color: #fff;--tw-ring-color: rgb(59 130 246 / .5);--tw-ring-offset-shadow: 0 0 #0000;--tw-ring-shadow: 0 0 #0000;--tw-shadow: 0 0 #0000;--tw-shadow-colored: 0 0 #0000;--tw-blur: ;--tw-brightness: ;--tw-contrast: ;--tw-grayscale: ;--tw-hue-rotate: ;--tw-invert: ;--tw-saturate: ;--tw-sepia: ;--tw-drop-shadow: ;--tw-backdrop-blur: ;--tw-backdrop-brightness: ;--tw-backdrop-contrast: ;--tw-backdrop-grayscale: ;--tw-backdrop-hue-rotate: ;--tw-backdrop-invert: ;--tw-backdrop-opacity: ;--tw-backdrop-saturate: ;--tw-backdrop-sepia: ;--tw-contain-size: ;--tw-contain-layout: ;--tw-contain-paint: ;--tw-contain-style: }::backdrop{--tw-border-spacing-x: 0;--tw-border-spacing-y: 0;--tw-translate-x: 0;--tw-translate-y: 0;--tw-rotate: 0;--tw-skew-x: 0;--tw-skew-y: 0;--tw-scale-x: 1;--tw-scale-y: 1;--tw-pan-x: ;--tw-pan-y: ;--tw-pinch-zoom: ;--tw-scroll-snap-strictness: proximity;--tw-gradient-from-position: ;--tw-gradient-via-position: ;--tw-gradient-to-position: ;--tw-ordinal: ;--tw-slashed-zero: ;--tw-numeric-figure: ;--tw-numeric-spacing: ;--tw-numeric-fraction: ;--tw-ring-inset: ;--tw-ring-offset-width: 0px;--tw-ring-offset-color: #fff;--tw-ring-color: rgb(59 130 246 / .5);--tw-ring-offset-shadow: 0 0 #0000;--tw-ring-shadow: 0 0 #0000;--tw-shadow: 0 0 #0000;--tw-shadow-colored: 0 0 #0000;--tw-blur: ;--tw-brightness: ;--tw-contrast: ;--tw-grayscale: ;--tw-hue-rotate: ;--tw-invert: ;--tw-saturate: ;--tw-sepia: ;--tw-drop-shadow: ;--tw-backdrop-blur: ;--tw-backdrop-brightness: ;--tw-backdrop-contrast: ;--tw-backdrop-grayscale: ;--tw-backdrop-hue-rotate: ;--tw-backdrop-invert: ;--tw-backdrop-opacity: ;--tw-backdrop-saturate: ;--tw-backdrop-sepia: ;--tw-contain-size: ;--tw-contain-layout: ;--tw-contain-paint: ;--tw-contain-style: }*,:before,:after{box-sizing:border-box;border-width:0;border-style:solid;border-color:#e5e7eb}:before,:after{--tw-content: ""}html,:host{line-height:1.5;-webkit-text-size-adjust:100%;-moz-tab-size:4;-o-tab-size:4;tab-size:4;font-family:ui-sans-serif,system-ui,sans-serif,"Apple Color Emoji","Segoe UI Emoji",Segoe UI Symbol,"Noto Color Emoji";font-feature-settings:normal;font-variation-settings:normal;-webkit-tap-highlight-color:transparent}body{margin:0;line-height:inherit}hr{height:0;color:inherit;border-top-width:1px}abbr:where([title]){-webkit-text-decoration:underline dotted;text-decoration:underline dotted}h1,h2,h3,h4,h5,h6{font-size:inherit;font-weight:inherit}a{color:inherit;text-decoration:inherit}b,strong{font-weight:bolder}code,kbd,samp,pre{font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,Liberation Mono,Courier New,monospace;font-feature-settings:normal;font-variation-settings:normal;font-size:1em}small{font-size:80%}sub,sup{font-size:75%;line-height:0;position:relative;vertical-align:baseline}sub{bottom:-.25em}sup{top:-.5em}table{text-indent:0;border-color:inherit;border-collapse:collapse}button,input,optgroup,select,textarea{font-family:inherit;font-feature-settings:inherit;font-variation-settings:inherit;font-size:100%;font-weight:inherit;line-height:inherit;letter-spacing:inherit;color:inherit;margin:0;padding:0}button,select{text-transform:none}button,input:where([type=button]),input:where([type=reset]),input:where([type=submit]){-webkit-appearance:button;background-color:transparent;background-image:none}:-moz-focusring{outline:auto}:-moz-ui-invalid{box-shadow:none}progress{vertical-align:baseline}::-webkit-inner-spin-button,::-webkit-outer-spin-button{height:auto}[type=search]{-webkit-appearance:textfield;outline-offset:-2px}::-webkit-search-decoration{-webkit-appearance:none}::-webkit-file-upload-button{-webkit-appearance:button;font:inherit}summary{display:list-item}blockquote,dl,dd,h1,h2,h3,h4,h5,h6,hr,figure,p,pre{margin:0}fieldset{margin:0;padding:0}legend{padding:0}ol,ul,menu{list-style:none;margin:0;padding:0}dialog{padding:0}textarea{resize:vertical}input::-moz-placeholder,textarea::-moz-placeholder{opacity:1;color:#9ca3af}input::placeholder,textarea::placeholder{opacity:1;color:#9ca3af}button,[role=button]{cursor:pointer}:disabled{cursor:default}img,svg,video,canvas,audio,iframe,embed,object{display:block;vertical-align:middle}img,video{max-width:100%;height:auto}[hidden]:where(:not([hidden=until-found])){display:none}.\!container{width:100%!important}.container{width:100%}@media (min-width: 640px){.\!container{max-width:640px!important}.container{max-width:640px}}@media (min-width: 768px){.\!container{max-width:768px!important}.container{max-width:768px}}@media (min-width: 1024px){.\!container{max-width:1024px!important}.container{max-width:1024px}}@media (min-width: 1280px){.\!container{max-width:1280px!important}.container{max-width:1280px}}@media (min-width: 1536px){.\!container{max-width:1536px!important}.container{max-width:1536px}}.\!visible{visibility:visible!important}.visible{visibility:visible}.invisible{visibility:hidden}.collapse{visibility:collapse}.static{position:static}.fixed{position:fixed}.absolute{position:absolute}.relative{position:relative}.sticky{position:sticky}.inset-0{top:0;right:0;bottom:0;left:0}.-right-4{right:-1rem}.-top-4{top:-1rem}.-top-6{top:-1.5rem}.bottom-0{bottom:0}.bottom-20{bottom:5rem}.left-0{left:0}.left-1\/2{left:50%}.left-10{left:2.5rem}.left-8{left:2rem}.right-0{right:0}.right-10{right:2.5rem}.top-0{top:0}.top-1\/2{top:50%}.top-20{top:5rem}.z-50{z-index:50}.m-0{margin:0}.mx-auto{margin-left:auto;margin-right:auto}.mb-0{margin-bottom:0}.mb-1{margin-bottom:.25rem}.mb-1\.5{margin-bottom:.375rem}.mb-10{margin-bottom:2.5rem}.mb-12{margin-bottom:3rem}.mb-16{margin-bottom:4rem}.mb-5{margin-bottom:1.25rem}.mb-8{margin-bottom:2rem}.ml-1{margin-left:.25rem}.ml-4{margin-left:1rem}.ml-auto{margin-left:auto}.mt-0\.5{margin-top:.125rem}.mt-1{margin-top:.25rem}.mt-1\.5{margin-top:.375rem}.mt-12{margin-top:3rem}.mt-2\.5{margin-top:.625rem}.mt-3{margin-top:.75rem}.\!block{display:block!important}.block{display:block}.inline-block{display:inline-block}.\!inline{display:inline!important}.inline{display:inline}.inline-flex{display:inline-flex}.\!table{display:table!important}.table{display:table}.\!grid{display:grid!important}.grid{display:grid}.hidden{display:none}.h-1\.5{height:.375rem}.h-10{height:2.5rem}.h-12{height:3rem}.h-14{height:3.5rem}.h-16{height:4rem}.h-2{height:.5rem}.h-20{height:5rem}.h-3{height:.75rem}.h-6{height:1.5rem}.h-72{height:18rem}.h-9{height:2.25rem}.h-96{height:24rem}.h-auto{height:auto}.h-full{height:100%}.max-h-\[min\(70vh\,calc\(100dvh-3\.5rem\)\)\]{max-height:min(70vh,calc(100dvh - 3.5rem))}.min-h-\[50vh\]{min-height:50vh}.min-h-screen{min-height:100vh}.w-1\.5{width:.375rem}.w-1\/3{width:33.333333%}.w-10{width:2.5rem}.w-12{width:3rem}.w-14{width:3.5rem}.w-16{width:4rem}.w-2\/3{width:66.666667%}.w-20{width:5rem}.w-6{width:1.5rem}.w-72{width:18rem}.w-8{width:2rem}.w-96{width:24rem}.w-full{width:100%}.min-w-0{min-width:0px}.min-w-\[480px\]{min-width:480px}.max-w-2xl{max-width:42rem}.max-w-3xl{max-width:48rem}.max-w-4xl{max-width:56rem}.max-w-5xl{max-width:64rem}.max-w-6xl{max-width:72rem}.max-w-7xl{max-width:80rem}.max-w-full{max-width:100%}.max-w-lg{max-width:32rem}.flex-shrink-0,.shrink-0{flex-shrink:0}.border-collapse{border-collapse:collapse}.-translate-x-1\/2{--tw-translate-x: -50%;transform:translate(var(--tw-translate-x),var(--tw-translate-y)) rotate(var(--tw-rotate)) skew(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y))}.rotate-180{--tw-rotate: 180deg;transform:translate(var(--tw-translate-x),var(--tw-translate-y)) rotate(var(--tw-rotate)) skew(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y))}.scale-105{--tw-scale-x: 1.05;--tw-scale-y: 1.05;transform:translate(var(--tw-translate-x),var(--tw-translate-y)) rotate(var(--tw-rotate)) skew(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y))}.\!transform{transform:translate(var(--tw-translate-x),var(--tw-translate-y)) rotate(var(--tw-rotate)) skew(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y))!important}.transform{transform:translate(var(--tw-translate-x),var(--tw-translate-y)) rotate(var(--tw-rotate)) skew(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y))}@keyframes pulse{50%{opacity:.5}}.animate-pulse{animation:pulse 2s cubic-bezier(.4,0,.6,1) infinite}.cursor-pointer{cursor:pointer}.resize-y{resize:vertical}.resize{resize:both}.list-none{list-style-type:none}.grid-cols-1{grid-template-columns:repeat(1,minmax(0,1fr))}.grid-cols-2{grid-template-columns:repeat(2,minmax(0,1fr))}.flex-wrap{flex-wrap:wrap}.items-start{align-items:flex-start}.justify-center{justify-content:center}.justify-between{justify-content:space-between}.gap-1{gap:.25rem}.gap-1\.5{gap:.375rem}.gap-12{gap:3rem}.gap-16{gap:4rem}.gap-6{gap:1.5rem}.gap-8{gap:2rem}.-space-x-3>:not([hidden])~:not([hidden]){--tw-space-x-reverse: 0;margin-right:calc(-.75rem * var(--tw-space-x-reverse));margin-left:calc(-.75rem * calc(1 - var(--tw-space-x-reverse)))}.space-y-1>:not([hidden])~:not([hidden]){--tw-space-y-reverse: 0;margin-top:calc(.25rem * calc(1 - var(--tw-space-y-reverse)));margin-bottom:calc(.25rem * var(--tw-space-y-reverse))}.space-y-1\.5>:not([hidden])~:not([hidden]){--tw-space-y-reverse: 0;margin-top:calc(.375rem * calc(1 - var(--tw-space-y-reverse)));margin-bottom:calc(.375rem * var(--tw-space-y-reverse))}.space-y-2>:not([hidden])~:not([hidden]){--tw-space-y-reverse: 0;margin-top:calc(.5rem * calc(1 - var(--tw-space-y-reverse)));margin-bottom:calc(.5rem * var(--tw-space-y-reverse))}.space-y-2\.5>:not([hidden])~:not([hidden]){--tw-space-y-reverse: 0;margin-top:calc(.625rem * calc(1 - var(--tw-space-y-reverse)));margin-bottom:calc(.625rem * var(--tw-space-y-reverse))}.space-y-3>:not([hidden])~:not([hidden]){--tw-space-y-reverse: 0;margin-top:calc(.75rem * calc(1 - var(--tw-space-y-reverse)));margin-bottom:calc(.75rem * var(--tw-space-y-reverse))}.space-y-4>:not([hidden])~:not([hidden]){--tw-space-y-reverse: 0;margin-top:calc(1rem * calc(1 - var(--tw-space-y-reverse)));margin-bottom:calc(1rem * var(--tw-space-y-reverse))}.space-y-6>:not([hidden])~:not([hidden]){--tw-space-y-reverse: 0;margin-top:calc(1.5rem * calc(1 - var(--tw-space-y-reverse)));margin-bottom:calc(1.5rem * var(--tw-space-y-reverse))}.divide-y>:not([hidden])~:not([hidden]){--tw-divide-y-reverse: 0;border-top-width:calc(1px * calc(1 - var(--tw-divide-y-reverse)));border-bottom-width:calc(1px * var(--tw-divide-y-reverse))}.divide-slate-100>:not([hidden])~:not([hidden]){--tw-divide-opacity: 1;border-color:rgb(241 245 249 / var(--tw-divide-opacity, 1))}.overflow-hidden{overflow:hidden}.overflow-x-auto{overflow-x:auto}.whitespace-pre-wrap{white-space:pre-wrap}.break-words{overflow-wrap:break-word}.rounded{border-radius:.25rem}.rounded-2xl{border-radius:1rem}.rounded-3xl{border-radius:1.5rem}.rounded-full{border-radius:9999px}.rounded-lg{border-radius:.5rem}.rounded-md{border-radius:.375rem}.rounded-xl{border-radius:.75rem}.border{border-width:1px}.border-2{border-width:2px}.border-4{border-width:4px}.border-b{border-bottom-width:1px}.border-l-4{border-left-width:4px}.border-t{border-top-width:1px}.border-t-2{border-top-width:2px}.border-dashed{border-style:dashed}.border-amber-100{--tw-border-opacity: 1;border-color:rgb(254 243 199 / var(--tw-border-opacity, 1))}.border-amber-200{--tw-border-opacity: 1;border-color:rgb(253 230 138 / var(--tw-border-opacity, 1))}.border-amber-400{--tw-border-opacity: 1;border-color:rgb(251 191 36 / var(--tw-border-opacity, 1))}.border-blue-100{--tw-border-opacity: 1;border-color:rgb(219 234 254 / var(--tw-border-opacity, 1))}.border-blue-200{--tw-border-opacity: 1;border-color:rgb(191 219 254 / var(--tw-border-opacity, 1))}.border-emerald-200{--tw-border-opacity: 1;border-color:rgb(167 243 208 / var(--tw-border-opacity, 1))}.border-gray-100{--tw-border-opacity: 1;border-color:rgb(243 244 246 / var(--tw-border-opacity, 1))}.border-gray-200{--tw-border-opacity: 1;border-color:rgb(229 231 235 / var(--tw-border-opacity, 1))}.border-red-200{--tw-border-opacity: 1;border-color:rgb(254 202 202 / var(--tw-border-opacity, 1))}.border-slate-100{--tw-border-opacity: 1;border-color:rgb(241 245 249 / var(--tw-border-opacity, 1))}.border-slate-200{--tw-border-opacity: 1;border-color:rgb(226 232 240 / var(--tw-border-opacity, 1))}.border-slate-300{--tw-border-opacity: 1;border-color:rgb(203 213 225 / var(--tw-border-opacity, 1))}.border-violet-100{--tw-border-opacity: 1;border-color:rgb(237 233 254 / var(--tw-border-opacity, 1))}.border-white{--tw-border-opacity: 1;border-color:rgb(255 255 255 / var(--tw-border-opacity, 1))}.bg-amber-100{--tw-bg-opacity: 1;background-color:rgb(254 243 199 / var(--tw-bg-opacity, 1))}.bg-amber-400{--tw-bg-opacity: 1;background-color:rgb(251 191 36 / var(--tw-bg-opacity, 1))}.bg-amber-50{--tw-bg-opacity: 1;background-color:rgb(255 251 235 / var(--tw-bg-opacity, 1))}.bg-amber-50\/40{background-color:#fffbeb66}.bg-amber-50\/60{background-color:#fffbeb99}.bg-blue-100{--tw-bg-opacity: 1;background-color:rgb(219 234 254 / var(--tw-bg-opacity, 1))}.bg-blue-200{--tw-bg-opacity: 1;background-color:rgb(191 219 254 / var(--tw-bg-opacity, 1))}.bg-blue-50{--tw-bg-opacity: 1;background-color:rgb(239 246 255 / var(--tw-bg-opacity, 1))}.bg-blue-50\/50{background-color:#eff6ff80}.bg-blue-500{--tw-bg-opacity: 1;background-color:rgb(59 130 246 / var(--tw-bg-opacity, 1))}.bg-emerald-100{--tw-bg-opacity: 1;background-color:rgb(209 250 229 / var(--tw-bg-opacity, 1))}.bg-emerald-50{--tw-bg-opacity: 1;background-color:rgb(236 253 245 / var(--tw-bg-opacity, 1))}.bg-gray-100{--tw-bg-opacity: 1;background-color:rgb(243 244 246 / var(--tw-bg-opacity, 1))}.bg-gray-200{--tw-bg-opacity: 1;background-color:rgb(229 231 235 / var(--tw-bg-opacity, 1))}.bg-gray-50{--tw-bg-opacity: 1;background-color:rgb(249 250 251 / var(--tw-bg-opacity, 1))}.bg-green-100{--tw-bg-opacity: 1;background-color:rgb(220 252 231 / var(--tw-bg-opacity, 1))}.bg-green-500{--tw-bg-opacity: 1;background-color:rgb(34 197 94 / var(--tw-bg-opacity, 1))}.bg-orange-100{--tw-bg-opacity: 1;background-color:rgb(255 237 213 / var(--tw-bg-opacity, 1))}.bg-orange-400{--tw-bg-opacity: 1;background-color:rgb(251 146 60 / var(--tw-bg-opacity, 1))}.bg-purple-100{--tw-bg-opacity: 1;background-color:rgb(243 232 255 / var(--tw-bg-opacity, 1))}.bg-red-100{--tw-bg-opacity: 1;background-color:rgb(254 226 226 / var(--tw-bg-opacity, 1))}.bg-red-50{--tw-bg-opacity: 1;background-color:rgb(254 242 242 / var(--tw-bg-opacity, 1))}.bg-slate-100{--tw-bg-opacity: 1;background-color:rgb(241 245 249 / var(--tw-bg-opacity, 1))}.bg-slate-200{--tw-bg-opacity: 1;background-color:rgb(226 232 240 / var(--tw-bg-opacity, 1))}.bg-slate-50{--tw-bg-opacity: 1;background-color:rgb(248 250 252 / var(--tw-bg-opacity, 1))}.bg-slate-50\/80{background-color:#f8fafccc}.bg-slate-900{--tw-bg-opacity: 1;background-color:rgb(15 23 42 / var(--tw-bg-opacity, 1))}.bg-violet-50{--tw-bg-opacity: 1;background-color:rgb(245 243 255 / var(--tw-bg-opacity, 1))}.bg-violet-50\/50{background-color:#f5f3ff80}.bg-white{--tw-bg-opacity: 1;background-color:rgb(255 255 255 / var(--tw-bg-opacity, 1))}.bg-white\/80{background-color:#fffc}.bg-white\/95{background-color:#fffffff2}.bg-yellow-100{--tw-bg-opacity: 1;background-color:rgb(254 249 195 / var(--tw-bg-opacity, 1))}.bg-gradient-to-b{background-image:linear-gradient(to bottom,var(--tw-gradient-stops))}.bg-gradient-to-br{background-image:linear-gradient(to bottom right,var(--tw-gradient-stops))}.bg-gradient-to-r{background-image:linear-gradient(to right,var(--tw-gradient-stops))}.from-amber-50{--tw-gradient-from: #fffbeb var(--tw-gradient-from-position);--tw-gradient-to: rgb(255 251 235 / 0) var(--tw-gradient-to-position);--tw-gradient-stops: var(--tw-gradient-from), var(--tw-gradient-to)}.from-blue-100{--tw-gradient-from: #dbeafe var(--tw-gradient-from-position);--tw-gradient-to: rgb(219 234 254 / 0) var(--tw-gradient-to-position);--tw-gradient-stops: var(--tw-gradient-from), var(--tw-gradient-to)}.from-blue-50{--tw-gradient-from: #eff6ff var(--tw-gradient-from-position);--tw-gradient-to: rgb(239 246 255 / 0) var(--tw-gradient-to-position);--tw-gradient-stops: var(--tw-gradient-from), var(--tw-gradient-to)}.from-gray-50{--tw-gradient-from: #f9fafb var(--tw-gradient-from-position);--tw-gradient-to: rgb(249 250 251 / 0) var(--tw-gradient-to-position);--tw-gradient-stops: var(--tw-gradient-from), var(--tw-gradient-to)}.from-green-100{--tw-gradient-from: #dcfce7 var(--tw-gradient-from-position);--tw-gradient-to: rgb(220 252 231 / 0) var(--tw-gradient-to-position);--tw-gradient-stops: var(--tw-gradient-from), var(--tw-gradient-to)}.from-orange-100{--tw-gradient-from: #ffedd5 var(--tw-gradient-from-position);--tw-gradient-to: rgb(255 237 213 / 0) var(--tw-gradient-to-position);--tw-gradient-stops: var(--tw-gradient-from), var(--tw-gradient-to)}.from-purple-100{--tw-gradient-from: #f3e8ff var(--tw-gradient-from-position);--tw-gradient-to: rgb(243 232 255 / 0) var(--tw-gradient-to-position);--tw-gradient-stops: var(--tw-gradient-from), var(--tw-gradient-to)}.from-purple-400{--tw-gradient-from: #c084fc var(--tw-gradient-from-position);--tw-gradient-to: rgb(192 132 252 / 0) var(--tw-gradient-to-position);--tw-gradient-stops: var(--tw-gradient-from), var(--tw-gradient-to)}.from-white{--tw-gradient-from: #fff var(--tw-gradient-from-position);--tw-gradient-to: rgb(255 255 255 / 0) var(--tw-gradient-to-position);--tw-gradient-stops: var(--tw-gradient-from), var(--tw-gradient-to)}.from-yellow-50{--tw-gradient-from: #fefce8 var(--tw-gradient-from-position);--tw-gradient-to: rgb(254 252 232 / 0) var(--tw-gradient-to-position);--tw-gradient-stops: var(--tw-gradient-from), var(--tw-gradient-to)}.via-orange-50{--tw-gradient-to: rgb(255 247 237 / 0) var(--tw-gradient-to-position);--tw-gradient-stops: var(--tw-gradient-from), #fff7ed var(--tw-gradient-via-position), var(--tw-gradient-to)}.to-emerald-100{--tw-gradient-to: #d1fae5 var(--tw-gradient-to-position)}.to-indigo-100{--tw-gradient-to: #e0e7ff var(--tw-gradient-to-position)}.to-indigo-50{--tw-gradient-to: #eef2ff var(--tw-gradient-to-position)}.to-orange-50{--tw-gradient-to: #fff7ed var(--tw-gradient-to-position)}.to-pink-100{--tw-gradient-to: #fce7f3 var(--tw-gradient-to-position)}.to-pink-400{--tw-gradient-to: #f472b6 var(--tw-gradient-to-position)}.to-slate-50\/80{--tw-gradient-to: rgb(248 250 252 / .8) var(--tw-gradient-to-position)}.to-white{--tw-gradient-to: #fff var(--tw-gradient-to-position)}.to-yellow-100{--tw-gradient-to: #fef9c3 var(--tw-gradient-to-position)}.p-10{padding:2.5rem}.p-3{padding:.75rem}.p-4{padding:1rem}.p-5{padding:1.25rem}.p-6{padding:1.5rem}.p-8{padding:2rem}.px-1{padding-left:.25rem;padding-right:.25rem}.px-1\.5{padding-left:.375rem;padding-right:.375rem}.px-10{padding-left:2.5rem;padding-right:2.5rem}.px-2{padding-left:.5rem;padding-right:.5rem}.px-2\.5{padding-left:.625rem;padding-right:.625rem}.px-3{padding-left:.75rem;padding-right:.75rem}.px-4{padding-left:1rem;padding-right:1rem}.px-6{padding-left:1.5rem;padding-right:1.5rem}.px-8{padding-left:2rem;padding-right:2rem}.py-0\.5{padding-top:.125rem;padding-bottom:.125rem}.py-1{padding-top:.25rem;padding-bottom:.25rem}.py-1\.5{padding-top:.375rem;padding-bottom:.375rem}.py-12{padding-top:3rem;padding-bottom:3rem}.py-16{padding-top:4rem;padding-bottom:4rem}.py-2{padding-top:.5rem;padding-bottom:.5rem}.py-2\.5{padding-top:.625rem;padding-bottom:.625rem}.py-20{padding-top:5rem;padding-bottom:5rem}.py-3{padding-top:.75rem;padding-bottom:.75rem}.py-4{padding-top:1rem;padding-bottom:1rem}.py-5{padding-top:1.25rem;padding-bottom:1.25rem}.py-6{padding-top:1.5rem;padding-bottom:1.5rem}.py-8{padding-top:2rem;padding-bottom:2rem}.pb-12{padding-bottom:3rem}.pb-32{padding-bottom:8rem}.pb-6{padding-bottom:1.5rem}.pb-8{padding-bottom:2rem}.pt-20{padding-top:5rem}.pt-24{padding-top:6rem}.pt-6{padding-top:1.5rem}.pt-8{padding-top:2rem}.text-left{text-align:left}.align-top{vertical-align:top}.text-3xl{font-size:1.875rem;line-height:2.25rem}.text-4xl{font-size:2.25rem;line-height:2.5rem}.text-5xl{font-size:3rem;line-height:1}.text-6xl{font-size:3.75rem;line-height:1}.text-\[10px\]{font-size:10px}.text-\[11px\]{font-size:11px}.text-xs{font-size:.75rem;line-height:1rem}.font-bold{font-weight:700}.font-medium{font-weight:500}.font-semibold{font-weight:600}.uppercase{text-transform:uppercase}.italic{font-style:italic}.leading-\[1\.1\]{line-height:1.1}.leading-relaxed{line-height:1.625}.leading-snug{line-height:1.375}.leading-tight{line-height:1.25}.tracking-wide{letter-spacing:.025em}.text-amber-100{--tw-text-opacity: 1;color:rgb(254 243 199 / var(--tw-text-opacity, 1))}.text-amber-600{--tw-text-opacity: 1;color:rgb(217 119 6 / var(--tw-text-opacity, 1))}.text-amber-800{--tw-text-opacity: 1;color:rgb(146 64 14 / var(--tw-text-opacity, 1))}.text-amber-900{--tw-text-opacity: 1;color:rgb(120 53 15 / var(--tw-text-opacity, 1))}.text-amber-950{--tw-text-opacity: 1;color:rgb(69 26 3 / var(--tw-text-opacity, 1))}.text-black{--tw-text-opacity: 1;color:rgb(0 0 0 / var(--tw-text-opacity, 1))}.text-blue-700{--tw-text-opacity: 1;color:rgb(29 78 216 / var(--tw-text-opacity, 1))}.text-blue-800{--tw-text-opacity: 1;color:rgb(30 64 175 / var(--tw-text-opacity, 1))}.text-blue-900{--tw-text-opacity: 1;color:rgb(30 58 138 / var(--tw-text-opacity, 1))}.text-blue-950{--tw-text-opacity: 1;color:rgb(23 37 84 / var(--tw-text-opacity, 1))}.text-emerald-700{--tw-text-opacity: 1;color:rgb(4 120 87 / var(--tw-text-opacity, 1))}.text-emerald-800{--tw-text-opacity: 1;color:rgb(6 95 70 / var(--tw-text-opacity, 1))}.text-emerald-900{--tw-text-opacity: 1;color:rgb(6 78 59 / var(--tw-text-opacity, 1))}.text-gray-500{--tw-text-opacity: 1;color:rgb(107 114 128 / var(--tw-text-opacity, 1))}.text-gray-600{--tw-text-opacity: 1;color:rgb(75 85 99 / var(--tw-text-opacity, 1))}.text-gray-700{--tw-text-opacity: 1;color:rgb(55 65 81 / var(--tw-text-opacity, 1))}.text-gray-800{--tw-text-opacity: 1;color:rgb(31 41 55 / var(--tw-text-opacity, 1))}.text-gray-900{--tw-text-opacity: 1;color:rgb(17 24 39 / var(--tw-text-opacity, 1))}.text-green-500{--tw-text-opacity: 1;color:rgb(34 197 94 / var(--tw-text-opacity, 1))}.text-green-600{--tw-text-opacity: 1;color:rgb(22 163 74 / var(--tw-text-opacity, 1))}.text-green-700{--tw-text-opacity: 1;color:rgb(21 128 61 / var(--tw-text-opacity, 1))}.text-orange-700{--tw-text-opacity: 1;color:rgb(194 65 12 / var(--tw-text-opacity, 1))}.text-purple-700{--tw-text-opacity: 1;color:rgb(126 34 206 / var(--tw-text-opacity, 1))}.text-red-500{--tw-text-opacity: 1;color:rgb(239 68 68 / var(--tw-text-opacity, 1))}.text-red-600{--tw-text-opacity: 1;color:rgb(220 38 38 / var(--tw-text-opacity, 1))}.text-red-700{--tw-text-opacity: 1;color:rgb(185 28 28 / var(--tw-text-opacity, 1))}.text-red-800{--tw-text-opacity: 1;color:rgb(153 27 27 / var(--tw-text-opacity, 1))}.text-red-900{--tw-text-opacity: 1;color:rgb(127 29 29 / var(--tw-text-opacity, 1))}.text-red-900\/80{color:#7f1d1dcc}.text-slate-400{--tw-text-opacity: 1;color:rgb(148 163 184 / var(--tw-text-opacity, 1))}.text-slate-500{--tw-text-opacity: 1;color:rgb(100 116 139 / var(--tw-text-opacity, 1))}.text-slate-600{--tw-text-opacity: 1;color:rgb(71 85 105 / var(--tw-text-opacity, 1))}.text-slate-700{--tw-text-opacity: 1;color:rgb(51 65 85 / var(--tw-text-opacity, 1))}.text-slate-800{--tw-text-opacity: 1;color:rgb(30 41 59 / var(--tw-text-opacity, 1))}.text-slate-900{--tw-text-opacity: 1;color:rgb(15 23 42 / var(--tw-text-opacity, 1))}.text-violet-800{--tw-text-opacity: 1;color:rgb(91 33 182 / var(--tw-text-opacity, 1))}.text-violet-900{--tw-text-opacity: 1;color:rgb(76 29 149 / var(--tw-text-opacity, 1))}.text-white{--tw-text-opacity: 1;color:rgb(255 255 255 / var(--tw-text-opacity, 1))}.text-yellow-700{--tw-text-opacity: 1;color:rgb(161 98 7 / var(--tw-text-opacity, 1))}.underline{text-decoration-line:underline}.no-underline{text-decoration-line:none}.opacity-10{opacity:.1}.\!shadow{--tw-shadow: 0 1px 3px 0 rgb(0 0 0 / .1), 0 1px 2px -1px rgb(0 0 0 / .1) !important;--tw-shadow-colored: 0 1px 3px 0 var(--tw-shadow-color), 0 1px 2px -1px var(--tw-shadow-color) !important;box-shadow:var(--tw-ring-offset-shadow, 0 0 #0000),var(--tw-ring-shadow, 0 0 #0000),var(--tw-shadow)!important}.shadow{--tw-shadow: 0 1px 3px 0 rgb(0 0 0 / .1), 0 1px 2px -1px rgb(0 0 0 / .1);--tw-shadow-colored: 0 1px 3px 0 var(--tw-shadow-color), 0 1px 2px -1px var(--tw-shadow-color);box-shadow:var(--tw-ring-offset-shadow, 0 0 #0000),var(--tw-ring-shadow, 0 0 #0000),var(--tw-shadow)}.shadow-2xl{--tw-shadow: 0 25px 50px -12px rgb(0 0 0 / .25);--tw-shadow-colored: 0 25px 50px -12px var(--tw-shadow-color);box-shadow:var(--tw-ring-offset-shadow, 0 0 #0000),var(--tw-ring-shadow, 0 0 #0000),var(--tw-shadow)}.shadow-inner{--tw-shadow: inset 0 2px 4px 0 rgb(0 0 0 / .05);--tw-shadow-colored: inset 0 2px 4px 0 var(--tw-shadow-color);box-shadow:var(--tw-ring-offset-shadow, 0 0 #0000),var(--tw-ring-shadow, 0 0 #0000),var(--tw-shadow)}.shadow-lg{--tw-shadow: 0 10px 15px -3px rgb(0 0 0 / .1), 0 4px 6px -4px rgb(0 0 0 / .1);--tw-shadow-colored: 0 10px 15px -3px var(--tw-shadow-color), 0 4px 6px -4px var(--tw-shadow-color);box-shadow:var(--tw-ring-offset-shadow, 0 0 #0000),var(--tw-ring-shadow, 0 0 #0000),var(--tw-shadow)}.shadow-md{--tw-shadow: 0 4px 6px -1px rgb(0 0 0 / .1), 0 2px 4px -2px rgb(0 0 0 / .1);--tw-shadow-colored: 0 4px 6px -1px var(--tw-shadow-color), 0 2px 4px -2px var(--tw-shadow-color);box-shadow:var(--tw-ring-offset-shadow, 0 0 #0000),var(--tw-ring-shadow, 0 0 #0000),var(--tw-shadow)}.shadow-sm{--tw-shadow: 0 1px 2px 0 rgb(0 0 0 / .05);--tw-shadow-colored: 0 1px 2px 0 var(--tw-shadow-color);box-shadow:var(--tw-ring-offset-shadow, 0 0 #0000),var(--tw-ring-shadow, 0 0 #0000),var(--tw-shadow)}.shadow-xl{--tw-shadow: 0 20px 25px -5px rgb(0 0 0 / .1), 0 8px 10px -6px rgb(0 0 0 / .1);--tw-shadow-colored: 0 20px 25px -5px var(--tw-shadow-color), 0 8px 10px -6px var(--tw-shadow-color);box-shadow:var(--tw-ring-offset-shadow, 0 0 #0000),var(--tw-ring-shadow, 0 0 #0000),var(--tw-shadow)}.ring{--tw-ring-offset-shadow: var(--tw-ring-inset) 0 0 0 var(--tw-ring-offset-width) var(--tw-ring-offset-color);--tw-ring-shadow: var(--tw-ring-inset) 0 0 0 calc(3px + var(--tw-ring-offset-width)) var(--tw-ring-color);box-shadow:var(--tw-ring-offset-shadow),var(--tw-ring-shadow),var(--tw-shadow, 0 0 #0000)}.ring-1{--tw-ring-offset-shadow: var(--tw-ring-inset) 0 0 0 var(--tw-ring-offset-width) var(--tw-ring-offset-color);--tw-ring-shadow: var(--tw-ring-inset) 0 0 0 calc(1px + var(--tw-ring-offset-width)) var(--tw-ring-color);box-shadow:var(--tw-ring-offset-shadow),var(--tw-ring-shadow),var(--tw-shadow, 0 0 #0000)}.ring-amber-200{--tw-ring-opacity: 1;--tw-ring-color: rgb(253 230 138 / var(--tw-ring-opacity, 1))}.ring-emerald-100{--tw-ring-opacity: 1;--tw-ring-color: rgb(209 250 229 / var(--tw-ring-opacity, 1))}.ring-emerald-200{--tw-ring-opacity: 1;--tw-ring-color: rgb(167 243 208 / var(--tw-ring-opacity, 1))}.ring-red-200{--tw-ring-opacity: 1;--tw-ring-color: rgb(254 202 202 / var(--tw-ring-opacity, 1))}.blur-3xl{--tw-blur: blur(64px);filter:var(--tw-blur) var(--tw-brightness) var(--tw-contrast) var(--tw-grayscale) var(--tw-hue-rotate) var(--tw-invert) var(--tw-saturate) var(--tw-sepia) var(--tw-drop-shadow)}.filter{filter:var(--tw-blur) var(--tw-brightness) var(--tw-contrast) var(--tw-grayscale) var(--tw-hue-rotate) var(--tw-invert) var(--tw-saturate) var(--tw-sepia) var(--tw-drop-shadow)}.backdrop-blur{--tw-backdrop-blur: blur(8px);-webkit-backdrop-filter:var(--tw-backdrop-blur) var(--tw-backdrop-brightness) var(--tw-backdrop-contrast) var(--tw-backdrop-grayscale) var(--tw-backdrop-hue-rotate) var(--tw-backdrop-invert) var(--tw-backdrop-opacity) var(--tw-backdrop-saturate) var(--tw-backdrop-sepia);backdrop-filter:var(--tw-backdrop-blur) var(--tw-backdrop-brightness) var(--tw-backdrop-contrast) var(--tw-backdrop-grayscale) var(--tw-backdrop-hue-rotate) var(--tw-backdrop-invert) var(--tw-backdrop-opacity) var(--tw-backdrop-saturate) var(--tw-backdrop-sepia)}.backdrop-blur-md{--tw-backdrop-blur: blur(12px);-webkit-backdrop-filter:var(--tw-backdrop-blur) var(--tw-backdrop-brightness) var(--tw-backdrop-contrast) var(--tw-backdrop-grayscale) var(--tw-backdrop-hue-rotate) var(--tw-backdrop-invert) var(--tw-backdrop-opacity) var(--tw-backdrop-saturate) var(--tw-backdrop-sepia);backdrop-filter:var(--tw-backdrop-blur) var(--tw-backdrop-brightness) var(--tw-backdrop-contrast) var(--tw-backdrop-grayscale) var(--tw-backdrop-hue-rotate) var(--tw-backdrop-invert) var(--tw-backdrop-opacity) var(--tw-backdrop-saturate) var(--tw-backdrop-sepia)}.transition{transition-property:color,background-color,border-color,text-decoration-color,fill,stroke,opacity,box-shadow,transform,filter,backdrop-filter;transition-timing-function:cubic-bezier(.4,0,.2,1);transition-duration:.15s}.transition-all{transition-property:all;transition-timing-function:cubic-bezier(.4,0,.2,1);transition-duration:.15s}.transition-colors{transition-property:color,background-color,border-color,text-decoration-color,fill,stroke;transition-timing-function:cubic-bezier(.4,0,.2,1);transition-duration:.15s}.transition-transform{transition-property:transform;transition-timing-function:cubic-bezier(.4,0,.2,1);transition-duration:.15s}*{margin:0;padding:0;box-sizing:border-box}html{-webkit-text-size-adjust:100%;-moz-text-size-adjust:100%;text-size-adjust:100%;overflow-x:hidden}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;overflow-x:hidden;min-width:0}#root{min-height:100vh;min-width:0}img,picture,video,canvas,svg{max-width:100%;height:auto}:root{--brand-color: #FFC02E;--brand-hover: #E6AD29;--mp-font-brand: "Nunito", "Inter", sans-serif;--mp-font-ui: "Nunito", "Inter", sans-serif}.fade-in{animation:fadeIn .5s ease-in}@keyframes fadeIn{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.placeholder\:text-slate-400::-moz-placeholder{--tw-text-opacity: 1;color:rgb(148 163 184 / var(--tw-text-opacity, 1))}.placeholder\:text-slate-400::placeholder{--tw-text-opacity: 1;color:rgb(148 163 184 / var(--tw-text-opacity, 1))}.hover\:scale-105:hover{--tw-scale-x: 1.05;--tw-scale-y: 1.05;transform:translate(var(--tw-translate-x),var(--tw-translate-y)) rotate(var(--tw-rotate)) skew(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y))}.hover\:bg-amber-100:hover{--tw-bg-opacity: 1;background-color:rgb(254 243 199 / var(--tw-bg-opacity, 1))}.hover\:bg-amber-50:hover{--tw-bg-opacity: 1;background-color:rgb(255 251 235 / var(--tw-bg-opacity, 1))}.hover\:bg-emerald-100:hover{--tw-bg-opacity: 1;background-color:rgb(209 250 229 / var(--tw-bg-opacity, 1))}.hover\:bg-gray-50:hover{--tw-bg-opacity: 1;background-color:rgb(249 250 251 / var(--tw-bg-opacity, 1))}.hover\:bg-slate-100:hover{--tw-bg-opacity: 1;background-color:rgb(241 245 249 / var(--tw-bg-opacity, 1))}.hover\:shadow-2xl:hover{--tw-shadow: 0 25px 50px -12px rgb(0 0 0 / .25);--tw-shadow-colored: 0 25px 50px -12px var(--tw-shadow-color);box-shadow:var(--tw-ring-offset-shadow, 0 0 #0000),var(--tw-ring-shadow, 0 0 #0000),var(--tw-shadow)}.hover\:shadow-xl:hover{--tw-shadow: 0 20px 25px -5px rgb(0 0 0 / .1), 0 8px 10px -6px rgb(0 0 0 / .1);--tw-shadow-colored: 0 20px 25px -5px var(--tw-shadow-color), 0 8px 10px -6px var(--tw-shadow-color);box-shadow:var(--tw-ring-offset-shadow, 0 0 #0000),var(--tw-ring-shadow, 0 0 #0000),var(--tw-shadow)}.focus\:border-amber-300:focus{--tw-border-opacity: 1;border-color:rgb(252 211 77 / var(--tw-border-opacity, 1))}.focus\:outline-none:focus{outline:2px solid transparent;outline-offset:2px}.focus\:ring-1:focus{--tw-ring-offset-shadow: var(--tw-ring-inset) 0 0 0 var(--tw-ring-offset-width) var(--tw-ring-offset-color);--tw-ring-shadow: var(--tw-ring-inset) 0 0 0 calc(1px + var(--tw-ring-offset-width)) var(--tw-ring-color);box-shadow:var(--tw-ring-offset-shadow),var(--tw-ring-shadow),var(--tw-shadow, 0 0 #0000)}.focus\:ring-amber-300:focus{--tw-ring-opacity: 1;--tw-ring-color: rgb(252 211 77 / var(--tw-ring-opacity, 1))}.focus\:ring-amber-400:focus{--tw-ring-opacity: 1;--tw-ring-color: rgb(251 191 36 / var(--tw-ring-opacity, 1))}.group:hover .group-hover\:scale-110{--tw-scale-x: 1.1;--tw-scale-y: 1.1;transform:translate(var(--tw-translate-x),var(--tw-translate-y)) rotate(var(--tw-rotate)) skew(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y))}@media (min-width: 640px){.sm\:inline{display:inline}.sm\:table{display:table}.sm\:hidden{display:none}.sm\:h-10{height:2.5rem}.sm\:grid-cols-2{grid-template-columns:repeat(2,minmax(0,1fr))}.sm\:flex-row{flex-direction:row}.sm\:gap-3{gap:.75rem}.sm\:gap-8{gap:2rem}.sm\:p-8{padding:2rem}.sm\:px-4{padding-left:1rem;padding-right:1rem}.sm\:px-5{padding-left:1.25rem;padding-right:1.25rem}.sm\:px-6{padding-left:1.5rem;padding-right:1.5rem}.sm\:py-3{padding-top:.75rem;padding-bottom:.75rem}.sm\:py-4{padding-top:1rem;padding-bottom:1rem}.sm\:pb-12{padding-bottom:3rem}.sm\:pt-28{padding-top:7rem}.sm\:text-3xl{font-size:1.875rem;line-height:2.25rem}.sm\:text-base{font-size:1rem;line-height:1.5rem}.sm\:text-lg{font-size:1.125rem;line-height:1.75rem}.sm\:text-sm{font-size:.875rem;line-height:1.25rem}}@media (min-width: 768px){.md\:block{display:block}.md\:flex{display:flex}.md\:hidden{display:none}.md\:grid-cols-2{grid-template-columns:repeat(2,minmax(0,1fr))}.md\:grid-cols-3{grid-template-columns:repeat(3,minmax(0,1fr))}.md\:grid-cols-5{grid-template-columns:repeat(5,minmax(0,1fr))}.md\:flex-row{flex-direction:row}.md\:gap-6{gap:1.5rem}.md\:gap-8{gap:2rem}.md\:px-8{padding-left:2rem;padding-right:2rem}.md\:text-2xl{font-size:1.5rem;line-height:2rem}.md\:text-3xl{font-size:1.875rem;line-height:2.25rem}.md\:text-4xl{font-size:2.25rem;line-height:2.5rem}.md\:text-5xl{font-size:3rem;line-height:1}.md\:text-6xl{font-size:3.75rem;line-height:1}.md\:text-sm{font-size:.875rem;line-height:1.25rem}}@media (min-width: 1024px){.lg\:block{display:block}.lg\:grid-cols-2{grid-template-columns:repeat(2,minmax(0,1fr))}.lg\:grid-cols-4{grid-template-columns:repeat(4,minmax(0,1fr))}.lg\:text-7xl{font-size:4.5rem;line-height:1}}:root{--brand-color: #FFC02E;--brand-hover: #E6AD29;--text-dark: #000;--text-light: #fff;--font-xs: .75rem;--font-sm: .875rem;--font-base: 1rem;--font-lg: 1.125rem;--font-xl: 1.25rem;--font-2xl: 1.5rem;--font-3xl: 1.875rem;--font-4xl: 2.25rem;--space-xs: .25rem;--space-sm: .5rem;--space-md: .75rem;--space-lg: 1rem;--space-xl: 1.5rem;--space-2xl: 2rem;--space-3xl: 3rem;--radius-sm: .375rem;--radius-md: .5rem;--radius-lg: .75rem;--radius-xl: 1rem;--gray-50: #f9fafb;--gray-100: #f3f4f6;--gray-200: #e5e7eb;--gray-300: #d1d5db;--gray-400: #9ca3af;--gray-500: #6b7280;--gray-600: #4b5563;--gray-700: #374151;--gray-800: #1f2937;--gray-900: #1a1a1a;--app-top-navbar-offset: calc(2.625rem + 1px) ;--transition-fast: .2s ease;--transition-normal: .3s ease;--transition-slow: .4s ease}*{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}.logo{font-family:Open Sans,sans-serif}.logo-img{height:4.5rem}.text-brand{color:var(--brand-color)}.bg-brand{background-color:var(--brand-color)}.border-brand{border-color:var(--brand-color)}.link-brand{color:var(--text-dark);font-weight:600;transition:color .2s}.link-brand:hover{color:var(--brand-color)}.hover\:border-brand:hover{border-color:var(--brand-color)}.hover\:bg-brand:hover{background-color:var(--brand-color)}.hover\:shadow-xl:hover,.shadow-xl{box-shadow:0 20px 25px -5px #0000001a,0 10px 10px -5px #0000000a}.shadow-2xl{box-shadow:0 25px 50px -12px #00000040}.fade-in{animation:fadeIn .3s ease-in}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.slide-in{animation:slideIn .4s ease-out}@keyframes slideIn{0%{opacity:0;transform:translate(-20px)}to{opacity:1;transform:translate(0)}}.scale-in{animation:scaleIn .3s ease-out}@keyframes scaleIn{0%{opacity:0;transform:scale(.95)}to{opacity:1;transform:scale(1)}}.modal{-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.btn-primary{background-color:var(--brand-color);color:var(--text-dark);padding:var(--space-md) var(--space-xl);border-radius:var(--radius-md);transition:all .2s ease;font-weight:600;font-size:var(--font-base);cursor:pointer;border:none;text-decoration:none;display:inline-flex;align-items:center;justify-content:center;gap:var(--space-sm)}.btn-primary:hover{background-color:var(--brand-hover);transform:translateY(-1px);box-shadow:0 4px 12px #ffc02e4d}.btn-secondary{background-color:var(--text-dark);color:var(--brand-color);padding:var(--space-md) var(--space-xl);border-radius:var(--radius-md);transition:all .2s ease;font-weight:600;font-size:var(--font-base);cursor:pointer;border:2px solid var(--text-dark);text-decoration:none;display:inline-flex;align-items:center;justify-content:center;gap:var(--space-sm)}.btn-secondary:hover{background-color:#2d2d2d;border-color:var(--brand-color);box-shadow:0 4px 12px #0003}.btn-sm{padding:var(--space-sm) var(--space-lg);font-size:var(--font-sm)}.btn-link{color:var(--brand-color);font-weight:600;font-size:var(--font-sm);text-decoration:none;transition:color .2s ease;background:none;border:none;cursor:pointer}.btn-link:hover{color:var(--brand-hover);text-decoration:underline}.card{background:#fff;border-radius:var(--radius-xl);transition:all .3s ease}.card:hover{transform:translateY(-2px);box-shadow:0 12px 24px #00000014}.group:hover .group-hover\:scale-110{transform:scale(1.1)}.transition-transform{transition:transform .3s ease}.top-navbar{position:fixed;top:0;left:0;right:0;background:#fff;border-bottom:1px solid #e5e7eb;box-shadow:0 2px 8px #0000000a;z-index:1000}html body nav.top-navbar{display:block!important;visibility:visible!important;opacity:1!important;position:fixed!important;top:0!important;left:0!important;right:0!important;height:auto!important;min-height:2.625rem!important;overflow:visible!important;pointer-events:auto!important;z-index:10000!important}.top-navbar-wrapper{max-width:none;margin:0;padding-left:env(safe-area-inset-left,0px);padding-right:env(safe-area-inset-right,0px)}.top-navbar-content{display:flex;align-items:center;gap:.65rem;padding:.375rem 1rem;min-height:2.625rem}.top-navbar-logo{display:inline-flex;align-items:center;flex-shrink:0;text-decoration:none}.breadcrumb-header{flex:1;min-width:0;display:flex;flex-direction:column}.breadcrumb-nav{display:flex;align-items:center;gap:.35rem;flex-wrap:nowrap;overflow-x:auto;max-width:100%;-webkit-overflow-scrolling:touch;scrollbar-width:none}.breadcrumb-nav::-webkit-scrollbar{display:none}.breadcrumb-nav-item{display:inline-flex;align-items:center;gap:var(--space-sm);padding:.2rem .45rem;border-radius:var(--radius-md);font-size:.8125rem;font-weight:600;text-decoration:none;transition:background .2s ease,color .2s ease;color:var(--gray-600);background:transparent;white-space:nowrap;flex-shrink:0}.breadcrumb-nav-item:hover:not(.active){background:var(--gray-100);color:var(--gray-900)}.breadcrumb-nav-item.active{background:#ffc02e2e;color:var(--gray-900);padding:.2rem .55rem;font-size:.8125rem;font-weight:700;border:1px solid rgba(255,192,46,.45)}.breadcrumb-icon{font-size:1.125rem;display:inline-flex}.breadcrumb-nav-separator{color:var(--gray-300);font-size:var(--font-base);font-weight:300;-webkit-user-select:none;-moz-user-select:none;user-select:none;flex-shrink:0}.breadcrumb-subtitle{font-size:var(--font-base);color:var(--gray-600);font-weight:600;margin-left:var(--space-xs);background:linear-gradient(135deg,#fef3c7,#fef9e7);padding:var(--space-sm) var(--space-lg);border-radius:var(--radius-md);border-left:3px solid var(--brand-color);display:inline-block;box-shadow:0 2px 4px #0000000d}.top-navbar-logo-center{display:none}.logo-img-top{height:2rem;width:auto;display:block}.top-navbar-right{display:flex;align-items:center;justify-content:flex-end;flex-shrink:0;gap:var(--space-md);margin-left:auto}.top-back-btn{display:flex;align-items:center;gap:var(--space-sm);padding:.35rem .75rem;border-radius:var(--radius-lg);background:var(--gray-50);color:var(--gray-600);text-decoration:none;transition:all .2s ease;font-weight:500;font-size:.8125rem;border:1px solid var(--gray-200);white-space:nowrap}.app-content-below-nav{padding-top:calc(var(--app-top-navbar-offset) + .75rem)}.top-back-btn:hover{background:#fff;color:var(--gray-900);border-color:var(--gray-300);transform:translate(-2px)}.testing-menu-dropdown{position:relative}.testing-menu-btn{display:flex;align-items:center;justify-content:center;width:2.5rem;height:2.5rem;border-radius:var(--radius-lg);background:#fff;border:1px solid var(--gray-200);cursor:pointer;transition:all .2s ease;color:var(--gray-500)}.testing-menu-btn:hover{background:var(--gray-50);border-color:var(--gray-300);color:var(--gray-900)}.testing-dropdown-menu{position:absolute;top:calc(100% + .5rem);right:0;background:#fff;border:1px solid #e5e7eb;border-radius:.75rem;box-shadow:0 4px 16px #0000001a;min-width:12rem;opacity:0;visibility:hidden;transform:translateY(-.5rem);transition:all .2s ease;z-index:1001}.testing-menu-dropdown.open .testing-dropdown-menu{opacity:1;visibility:visible;transform:translateY(0)}.dropdown-section-title{padding:.75rem 1rem .5rem;font-size:.75rem;font-weight:600;color:#9ca3af;text-transform:uppercase;letter-spacing:.05em}.dropdown-toggle-item{display:flex;align-items:center;gap:.75rem;padding:.75rem 1rem;color:#4b5563;background:none;border:none;text-decoration:none;transition:all .15s ease;cursor:pointer;width:100%;text-align:left;font-size:.9375rem;font-weight:500}.dropdown-toggle-item:hover{background:#f9fafb;color:#1a1a1a}.dropdown-toggle-item.active{background:#fef3c7;color:#1a1a1a;font-weight:600}.toggle-check{width:1.125rem;height:1.125rem;display:flex;align-items:center;justify-content:center;font-size:.875rem;opacity:0;transition:opacity .2s ease}.dropdown-toggle-item.active .toggle-check{opacity:1;color:var(--brand-color)}.user-profile-dropdown{position:relative}.user-profile-btn{display:flex;align-items:center;gap:.35rem;padding:.25rem .625rem;border-radius:var(--radius-lg);background:#fff;border:1px solid var(--gray-200);cursor:pointer;transition:all .2s ease;font-weight:500;color:var(--gray-900);min-height:2rem}.user-profile-btn:hover{background:var(--gray-50);border-color:var(--gray-300)}.user-avatar-small{width:1.75rem;height:1.75rem;background:linear-gradient(135deg,var(--brand-color) 0%,#E6AD29 100%);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:.8125rem;font-weight:600;color:#1a1a1a;flex-shrink:0}.user-name-text{font-size:.875rem;font-weight:500;color:#1a1a1a}.dropdown-icon{color:#6b7280;transition:transform .2s ease}.user-profile-dropdown.open .dropdown-icon{transform:rotate(180deg)}.user-dropdown-menu{position:absolute;top:calc(100% + .5rem);right:0;background:#fff;border:1px solid #e5e7eb;border-radius:.75rem;box-shadow:0 4px 16px #0000001a;min-width:14rem;opacity:0;visibility:hidden;transform:translateY(-.5rem);transition:all .2s ease;z-index:1001}.user-profile-dropdown.open .user-dropdown-menu{opacity:1;visibility:visible;transform:translateY(0)}.dropdown-user-info{padding:1rem}.dropdown-user-name{font-weight:600;font-size:1rem;color:#1a1a1a;margin-bottom:.25rem}.dropdown-user-class{font-size:.875rem;color:#6b7280}.dropdown-divider{height:1px;background:#f3f4f6;margin:.25rem 0}.dropdown-item{display:flex;align-items:center;gap:var(--space-md);padding:var(--space-md) var(--space-lg);color:var(--gray-600);text-decoration:none;transition:all .15s ease;cursor:pointer;border:none;background:none;width:100%;text-align:left;font-size:var(--font-sm);font-weight:500}.dropdown-item:hover{background:var(--gray-50);color:var(--gray-900)}.dropdown-item-icon{font-size:1.125rem;display:flex;align-items:center;justify-content:center;width:1.25rem}.dropdown-item-danger{color:#dc2626}.dropdown-item-danger:hover{background:#fef2f2;color:#b91c1c}@media (max-width: 1200px){.chapter-sidebar{width:240px}}@media (max-width: 992px){.chapter-sidebar{position:relative;top:0;width:100%;margin-bottom:2rem}#chapters-view .flex{flex-direction:column}}@media (max-width: 1024px){.top-navbar-content{gap:.65rem;padding:.625rem 1rem}.breadcrumb-nav-item{font-size:var(--font-xs);padding:.24rem .42rem}.breadcrumb-nav-item.active{font-size:var(--font-xs);padding:.24rem .5rem;max-width:min(100%,12rem);overflow:hidden;text-overflow:ellipsis}.breadcrumb-nav-separator{font-size:var(--font-sm)}.logo-img-top{height:1.75rem}}@media (max-width: 768px){.top-navbar-content{padding:.3rem .75rem;gap:.45rem;min-height:2.5rem}:root{--app-top-navbar-offset: calc(2.5rem + 1px) }.breadcrumb-header{display:flex}.breadcrumb-nav-item.active{max-width:min(100%,10rem)}.logo-img-top{height:1.65rem}.top-navbar-right{gap:var(--space-sm)}.user-name-text{display:none}.user-profile-btn{padding:var(--space-sm);gap:0}.user-dropdown-menu,.testing-dropdown-menu{right:-1rem}.top-back-btn span{display:none}.top-back-btn:before{content:"←"}}.chapter-sidebar{width:280px;background:#fff;border-radius:var(--radius-xl);border:1px solid var(--gray-200);padding:var(--space-xl);height:-moz-fit-content;height:fit-content;position:sticky;top:90px;flex-shrink:0;box-shadow:0 2px 8px #0000000a}.chapter-sidebar-header{text-align:center;padding-bottom:var(--space-lg);margin-bottom:var(--space-md)}.subject-icon-circle{width:4rem;height:4rem;background:linear-gradient(135deg,var(--brand-color) 0%,#E6AD29 100%);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:2rem;box-shadow:0 4px 12px #ffc02e40;transition:transform .3s ease;flex-shrink:0}.subject-icon-circle-lg{width:5rem;height:5rem;font-size:2.5rem}.subject-icon-circle-xl{width:6rem;height:6rem;font-size:3rem}.sidebar-subject-name{font-size:var(--font-lg);font-weight:700;color:var(--gray-900);margin-bottom:var(--space-sm)}.sidebar-subject-info{font-size:var(--font-xs);color:var(--gray-500);font-weight:600;text-transform:uppercase;letter-spacing:.05em}.chapter-sidebar-list{display:flex;flex-direction:column;gap:.375rem;max-height:280px;overflow-y:auto;padding-right:.25rem}.chapter-sidebar-list::-webkit-scrollbar{width:4px}.chapter-sidebar-list::-webkit-scrollbar-track{background:#f3f4f6;border-radius:2px}.chapter-sidebar-list::-webkit-scrollbar-thumb{background:#d1d5db;border-radius:2px}.chapter-sidebar-list::-webkit-scrollbar-thumb:hover{background:#9ca3af}.sidebar-unit-item{display:flex;flex-direction:column;gap:.25rem;padding:.75rem;background:#f9fafb;border-radius:.5rem;text-decoration:none;transition:all .2s ease;cursor:pointer}.sidebar-unit-item:hover{background:#f3f4f6}.unit-label{font-size:.6875rem;font-weight:600;color:#9ca3af;text-transform:uppercase;letter-spacing:.05em}.unit-name{font-size:.875rem;font-weight:500;color:#1a1a1a}.sidebar-section{margin-bottom:.75rem}.sidebar-section:not(:first-of-type){padding-top:1rem;border-top:1px solid #f3f4f6}.sidebar-section:first-of-type{padding-top:0;border-top:none}.sidebar-section-toggle{width:100%;display:flex;align-items:center;gap:var(--space-sm);padding:var(--space-sm) var(--space-md);background:transparent;border:none;border-radius:var(--radius-md);cursor:pointer;transition:all .2s ease;text-align:left}.sidebar-section-toggle:hover{background:var(--gray-50)}.sidebar-section-toggle.is-active{background:#fffbeb}.sidebar-section-toggle.is-active .section-toggle-title{color:#92400e}.section-toggle-icon{font-size:var(--font-xs);color:var(--gray-500);width:var(--space-lg);transition:transform .2s ease}.section-toggle-title{flex:1;font-size:var(--font-sm);font-weight:600;color:var(--gray-900)}.section-badge{background:var(--brand-color);color:var(--gray-900);font-size:var(--font-xs);font-weight:700;padding:var(--space-xs) var(--space-sm);border-radius:var(--radius-sm)}.sidebar-section-content{margin-top:.5rem;display:flex;flex-direction:column;gap:.375rem}.sidebar-activity-item{display:flex;align-items:center;justify-content:space-between;gap:.5rem;padding:.75rem;background:#f9fafb;border-radius:.5rem;text-decoration:none;transition:all .2s ease}.sidebar-activity-item:hover{background:#f3f4f6}.activity-item-info{flex:1;min-width:0}.activity-item-title{font-size:.8125rem;font-weight:600;color:#1a1a1a;margin-bottom:.25rem;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.activity-item-meta{font-size:.6875rem;color:#6b7280;font-weight:500}.activity-item-action{font-size:.75rem;color:var(--brand-color);font-weight:600;flex-shrink:0}.sidebar-revision-test-row .sidebar-revision-review-btn,.sidebar-revision-content-row .sidebar-revision-review-btn{background:none;border:none;padding:0;cursor:pointer;font:inherit;text-align:right}.sidebar-revision-test-row .sidebar-revision-review-btn:hover,.sidebar-revision-content-row .sidebar-revision-review-btn:hover{text-decoration:underline;color:var(--brand-hover)}.revision-quiz-card-block{position:relative}.revision-quiz-card-block.has-revision-completed-badge{padding-top:2rem}.revision-quiz-badge-completed{display:inline-block;font-size:.6875rem;font-weight:700;text-transform:uppercase;letter-spacing:.04em;color:#065f46;background:#d1fae5;border:1px solid #6ee7b7;padding:.25rem .5rem;border-radius:.375rem;line-height:1.2}.revision-quiz-badge-completed--corner{position:absolute;top:.5rem;right:.75rem;z-index:1}.revision-quiz-part-summary{font-size:.875rem;color:#374151;font-weight:600;margin:0;line-height:1.45}.revision-quiz-part-summary--sidebar{font-size:.6875rem;font-weight:600;color:#4b5563;margin:.125rem 0 .25rem;line-height:1.35}.revision-quiz-footer-meta{flex:1;min-width:0}.revision-quiz-total-questions{font-size:.875rem;color:#6b7280;font-weight:500;margin:.25rem 0 0;line-height:1.4}.revision-quiz-footer-meta .revision-quiz-part-summary+.revision-quiz-total-questions{margin-top:.125rem;font-size:.8125rem}.revision-card-header.revision-quiz-card-block.has-revision-completed-badge .revision-info,.revision-quiz-show-test-card.revision-quiz-card-block.has-revision-completed-badge .revision-info{padding-right:5.5rem}.sidebar-revision-test-body{min-width:0;padding-right:3.5rem}.sidebar-revision-test-row.revision-quiz-card-block:not(.has-revision-completed-badge) .sidebar-revision-test-body{padding-right:0}.chapter-main-content{flex:1;min-width:0}.revision-toggle-btn{padding:.5rem 1rem;border-radius:.5rem;border:1px solid #d1d5db;background:#fff;color:#4b5563;font-size:.875rem;font-weight:500;cursor:pointer;transition:all .2s ease}.revision-toggle-btn:hover{background:#f9fafb;border-color:#9ca3af}.revision-toggle-btn.active{background:#1a1a1a;color:var(--brand-color);border-color:#1a1a1a;font-weight:600}#revision-section{margin-bottom:2rem}.revision-card{background:linear-gradient(135deg,#fef3c7,#fef9e7);border-radius:var(--radius-xl);padding:var(--space-xl);border:2px solid var(--brand-color);margin-bottom:var(--space-2xl);box-shadow:0 4px 16px #ffc02e33}.revision-card-header{display:flex;align-items:flex-start;gap:var(--space-lg);margin-bottom:var(--space-xl)}.revision-icon{width:3.5rem;height:3.5rem;background:#fff;border-radius:.75rem;display:flex;align-items:center;justify-content:center;font-size:2rem;flex-shrink:0;box-shadow:0 2px 8px #0000001a}.revision-info{flex:1}.revision-title{font-size:1.25rem;font-weight:700;color:#1a1a1a;margin-bottom:.5rem}.revision-desc{font-size:.9375rem;color:#4b5563;font-weight:500}.revision-card-content{display:flex;align-items:center;justify-content:space-between;gap:2rem;flex-wrap:wrap}.revision-card-content--cta-only{justify-content:flex-end}.revision-quiz-show-test-card{display:flex;flex-direction:column;align-items:stretch;min-width:0}.revision-quiz-show-test-card__main{display:flex;align-items:flex-start;gap:var(--space-lg);flex:1;min-width:0}.revision-quiz-show-test-card__footer{display:flex;justify-content:flex-end;align-items:center;margin-top:var(--space-md);padding-top:var(--space-md);border-top:1px solid var(--gray-100)}.revision-stats{display:flex;gap:2rem;flex-wrap:wrap}.revision-stat{display:flex;align-items:center;gap:.5rem}.revision-stat .stat-label{font-size:.875rem;color:#6b7280;font-weight:500}.revision-stat .stat-value{font-size:1rem;color:#1a1a1a;font-weight:700}.revision-topics-container{margin-bottom:2rem}.revision-section-header{margin-bottom:1.25rem}.revision-section-title{font-size:1.25rem;font-weight:700;color:#1a1a1a;margin-bottom:.5rem}.revision-section-desc{font-size:.9375rem;color:#6b7280;font-weight:500}.revision-topics-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:1rem}.revision-topic-card{background:#fff;border-radius:.75rem;padding:1.25rem;border:2px solid #f59e0b;transition:all .2s ease}.revision-topic-card:hover{border-color:var(--brand-color);box-shadow:0 4px 12px #ffc02e33}.revision-topic-header{display:flex;align-items:center;gap:.75rem;margin-bottom:.75rem}.revision-topic-number{width:2rem;height:2rem;background:#f59e0b;color:#fff;border-radius:.5rem;display:flex;align-items:center;justify-content:center;font-size:.875rem;font-weight:700;flex-shrink:0}.revision-topic-name{font-size:1rem;font-weight:700;color:#1a1a1a}.revision-topic-reason{font-size:.875rem;color:#6b7280;margin-bottom:1rem;font-weight:500}.revision-topic-actions{display:flex;gap:.75rem}.sidebar-revision-content-group{margin-bottom:.75rem}.sidebar-revision-back-btn{display:block;width:100%;margin-bottom:.5rem;padding:.4rem .5rem;font-size:.72rem;font-weight:700;color:#92400e;background:transparent;border:none;text-align:left;cursor:pointer}.sidebar-revision-back-btn:hover{color:#78350f;text-decoration:underline}.sidebar-revision-chapter-btn{display:flex;flex-direction:column;align-items:flex-start;gap:.15rem;width:100%;margin-bottom:.35rem;padding:.55rem .65rem;font:inherit;text-align:left;background:#fff;border:1px solid #e5e7eb;border-radius:.55rem;cursor:pointer;transition:border-color .15s ease,background .15s ease}.sidebar-revision-chapter-btn:hover,.sidebar-revision-chapter-btn.is-active{border-color:var(--brand-color, #ffc02e);background:#fffbeb}.sidebar-revision-chapter-name{font-size:.82rem;font-weight:700;color:#111827;line-height:1.3}.sidebar-revision-chapter-count{font-size:.68rem;font-weight:600;color:#6b7280}.sidebar-revision-topic-list{display:flex;flex-direction:column;gap:.2rem}.sidebar-revision-topic-btn{display:flex;align-items:flex-start;gap:.45rem;width:100%;padding:.45rem .5rem;font:inherit;text-align:left;background:transparent;border:none;border-radius:.45rem;cursor:pointer;transition:background .15s ease}.sidebar-revision-topic-btn:hover{background:#fffbeb}.sidebar-revision-topic-btn.is-active{background:#fffbeb;box-shadow:inset 3px 0 0 var(--brand-color, #ffc02e)}.sidebar-revision-topic-num{flex-shrink:0;width:1.35rem;height:1.35rem;display:flex;align-items:center;justify-content:center;font-size:.65rem;font-weight:800;color:#111827;background:var(--brand-color, #ffc02e);border-radius:.35rem}.sidebar-revision-topic-label{font-size:.76rem;font-weight:600;color:#374151;line-height:1.35}.sidebar-revision-content-chapter{font-size:.65rem;font-weight:800;letter-spacing:.06em;text-transform:uppercase;color:#92400e;padding:.35rem .5rem .25rem}.sidebar-revision-content-item{display:block;padding:.45rem .5rem .45rem .75rem;margin-bottom:.15rem;font-size:.78rem;font-weight:600;color:#374151;text-decoration:none;border-radius:.45rem;border-left:3px solid rgba(255,192,46,.55);transition:background .15s ease,color .15s ease}.sidebar-revision-content-item:hover{background:#fffbeb;color:#111827}.revision-content-preview{margin-bottom:1.5rem}.revision-content-list{display:flex;flex-direction:column;gap:1rem}.revision-content-list--compact{gap:.75rem}.revision-content-empty{font-size:.875rem;color:#6b7280;padding:.75rem .25rem}.revision-content-empty--error{color:#b91c1c}.revision-content-card{background:linear-gradient(135deg,#fff,#fffef5);border:2px solid rgba(255,192,46,.35);border-radius:1rem;padding:1.1rem 1.25rem;box-shadow:0 2px 10px #1118270d}.revision-content-card--compact{padding:.9rem 1rem}.revision-content-card__chapter{font-size:.7rem;font-weight:800;letter-spacing:.05em;text-transform:uppercase;color:#b45309;margin:0 0 .35rem}.revision-content-card__title{font-size:1.05rem;font-weight:800;color:#111827;margin:0 0 .5rem;line-height:1.35}.revision-content-card__definition{font-size:.925rem;color:#374151;margin:0 0 .75rem;line-height:1.6;font-weight:500}.revision-content-card__section{margin-top:.85rem}.revision-content-card__section-label{font-size:.72rem;font-weight:800;letter-spacing:.04em;text-transform:uppercase;color:#92400e;margin:0 0 .4rem}.revision-content-card__text{font-size:.9rem;color:#374151;line-height:1.65;margin:0}.revision-content-card__list{margin:0;padding-left:1.15rem;display:flex;flex-direction:column;gap:.35rem}.revision-content-card__list li{font-size:.9rem;color:#374151;line-height:1.55}.revision-content-card__hook{margin-top:1rem;padding:.75rem .9rem;border-radius:.65rem;background:#fffbeb;border:1px dashed rgba(255,192,46,.65)}.revision-content-card__hook-label{display:block;font-size:.68rem;font-weight:800;letter-spacing:.05em;text-transform:uppercase;color:#b45309;margin-bottom:.35rem}.revision-content-card__hook-text{margin:0;font-size:.925rem;font-weight:600;color:#1f2937;line-height:1.55}.sidebar-revision-content-chapter--active{margin-bottom:.5rem;padding-bottom:.35rem;border-bottom:1px solid rgba(255,192,46,.45)}.revision-chapter-picker{display:grid;grid-template-columns:repeat(auto-fill,minmax(14rem,1fr));gap:.75rem}.revision-chapter-picker__btn{display:flex;flex-direction:column;align-items:flex-start;gap:.25rem;padding:1rem 1.1rem;text-align:left;font:inherit;background:#fff;border:2px solid rgba(255,192,46,.35);border-radius:.85rem;cursor:pointer;transition:border-color .15s ease,box-shadow .15s ease}.revision-chapter-picker__btn:hover{border-color:var(--brand-color, #ffc02e);box-shadow:0 4px 14px #ffc02e2e}.revision-chapter-picker__name{font-size:1rem;font-weight:800;color:#111827}.revision-chapter-picker__meta{font-size:.8rem;font-weight:600;color:#6b7280}.revision-content-reader{margin-bottom:1.5rem;background:#fff;border:2px solid rgba(255,192,46,.35);border-radius:1rem;overflow:hidden;box-shadow:0 4px 20px #1118270f}.revision-content-reader__header{padding:1rem 1.25rem;border-bottom:1px solid #f3f4f6;background:linear-gradient(180deg,#fffef5,#fff)}.revision-content-reader__back{display:inline-block;margin-bottom:.65rem;padding:0;font-size:.8rem;font-weight:700;color:#92400e;background:none;border:none;cursor:pointer}.revision-content-reader__back:hover{text-decoration:underline}.revision-content-reader__chapter{margin:0 0 .2rem;font-size:.72rem;font-weight:800;letter-spacing:.05em;text-transform:uppercase;color:#b45309}.revision-content-reader__topic-index{margin:0;font-size:1.15rem;font-weight:800;color:#111827}.revision-content-reader__body{padding:1.25rem}.revision-content-reader__footer{display:flex;justify-content:space-between;gap:.75rem;padding:1rem 1.25rem;border-top:1px solid #f3f4f6;background:#fafafa}.revision-content-reader__empty{padding:2.5rem 1.5rem;text-align:center;color:#6b7280}.revision-content-reader__empty--error{color:#b91c1c}.topic-unit-revision-content{margin-top:1.25rem;padding-top:1rem;border-top:1px dashed #e5e7eb}.topic-unit-revision-title{font-size:.95rem;font-weight:800;color:#111827;margin:0 0 .75rem}.topic-link{flex:1;text-align:center;padding:.625rem 1rem;border-radius:.5rem;background:#f9fafb;color:#1a1a1a;text-decoration:none;font-size:.875rem;font-weight:600;border:1px solid #e5e7eb;transition:all .2s ease}.topic-link:hover{background:#fff;border-color:var(--brand-color);color:#1a1a1a}.detailed-topics-section{margin-top:0}.up-next-badge{background:linear-gradient(135deg,#fef3c7,#fef9e7);color:#92400e;font-size:var(--font-xs);font-weight:700;padding:var(--space-sm) var(--space-md);border-radius:var(--radius-sm);text-transform:uppercase;letter-spacing:.03em;border:1px solid var(--brand-color)}.section-title{font-size:var(--font-2xl);font-weight:700;color:var(--gray-900);margin-bottom:var(--space-xl);line-height:1.2}.topics-list{display:flex;flex-direction:column;gap:1.5rem}.topic-unit-card{background:#fff;border-radius:var(--radius-xl);padding:var(--space-xl);border:1px solid var(--gray-200);scroll-margin-top:100px;transition:all .2s ease}.topic-unit-card:hover{border-color:var(--gray-300);box-shadow:0 4px 12px #0000000f}.topic-unit-header{display:flex;align-items:center;gap:var(--space-lg);margin-bottom:var(--space-xl)}.topic-unit-number-box{width:3rem;height:3rem;background:linear-gradient(135deg,var(--brand-color) 0%,#E6AD29 100%);border-radius:var(--radius-lg);display:flex;align-items:center;justify-content:center;font-size:var(--font-2xl);font-weight:700;color:var(--gray-900);flex-shrink:0;box-shadow:0 4px 12px #ffc02e4d}.topic-unit-info{flex:1}.unit-title-row{display:flex;align-items:center;gap:var(--space-md);margin-bottom:var(--space-md)}.topic-unit-title{font-size:var(--font-lg);font-weight:700;color:var(--gray-900)}.unit-progress-bar{width:100%;height:.5rem;background:var(--gray-100);border-radius:var(--radius-sm);overflow:hidden;margin-bottom:var(--space-sm)}.unit-progress-fill{height:100%;background:linear-gradient(90deg,#8b5cf6 0%,#3b82f6 50%,var(--brand-color) 100%);border-radius:var(--radius-sm);transition:width .5s ease}.topic-unit-mastery{font-size:var(--font-sm);color:var(--gray-500);font-weight:600}.topic-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:.5rem}.topic-item{display:flex;align-items:center;justify-content:space-between;gap:var(--space-md);padding:var(--space-md) var(--space-lg);background:var(--gray-50);border-radius:var(--radius-md);transition:all .2s ease;border:1px solid transparent}.topic-item__main{flex:1;min-width:0;display:flex;flex-direction:column;gap:.35rem}.topic-item__progress{display:flex;align-items:center;gap:.5rem;max-width:12rem}.topic-item__progress-bar{flex:1;height:.35rem;background:var(--gray-200);border-radius:var(--radius-sm);overflow:hidden}.topic-item__progress-fill{height:100%;background:linear-gradient(90deg,#8b5cf6 0%,var(--brand-color) 100%);border-radius:var(--radius-sm);transition:width .4s ease}.topic-item__progress-pct{font-size:var(--font-xs);font-weight:700;color:var(--gray-500);white-space:nowrap}.sidebar-subject-progress{margin-top:var(--space-sm)}.sidebar-subject-progress--above-icon{margin-top:0;margin-bottom:var(--space-md);background:#ffc02e47}.sidebar-subject-progress--above-icon .unit-progress-fill{background:linear-gradient(90deg,#ffc02e,#d99000)}.sidebar-unit-item__row{display:flex;align-items:center;justify-content:space-between;gap:.5rem}.sidebar-unit-progress{font-size:var(--font-xs);font-weight:700;color:var(--brand-color);white-space:nowrap;flex-shrink:0}.topic-item:hover{background:var(--gray-100);border-color:var(--gray-200)}.topic-name{font-size:var(--font-base);font-weight:500;color:var(--gray-900)}.topic-name--mathtext .math-content,.subtopic-item .math-content{font-size:inherit;font-weight:inherit;line-height:1.4}.slide-title .math-content{font-size:inherit;font-weight:inherit}.slide-body--mathtext .math-content{max-width:100%;line-height:1.6}.topic-action{font-size:var(--font-sm);font-weight:600;color:var(--brand-color);text-decoration:none;transition:all .2s ease}.topic-action:hover{color:var(--brand-hover)}.topic-action.quiz-link{background:linear-gradient(135deg,var(--brand-color) 0%,#E6AD29 100%);color:var(--gray-900);padding:var(--space-sm) var(--space-md);border-radius:var(--radius-sm)}.topic-action.quiz-link:hover{transform:translateY(-1px);box-shadow:0 4px 8px #ffc02e4d}.sidebar{background:#fff;box-shadow:2px 0 16px #0000000f;border-right:1px solid #e5e7eb}.sidebar-user-mini{display:flex;align-items:center;gap:.75rem;padding:.75rem;margin-bottom:1rem;background:linear-gradient(135deg,#fef3c7,#fef9e7);border-radius:.75rem;border:1px solid var(--brand-color)}.user-avatar-sidebar{width:2.5rem;height:2.5rem;background:linear-gradient(135deg,var(--brand-color) 0%,#E6AD29 100%);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1rem;font-weight:600;color:#1a1a1a;flex-shrink:0}.user-info-sidebar{flex:1;min-width:0}.user-name-sidebar{font-weight:600;font-size:.9375rem;color:#1a1a1a;line-height:1.2}.user-class-sidebar{font-size:.8125rem;color:#6b7280;margin-top:.125rem}.sidebar-home-btn{display:flex;align-items:center;gap:.75rem;padding:.875rem 1rem;margin-bottom:.75rem;border-radius:.75rem;background:linear-gradient(135deg,var(--brand-color) 0%,#E6AD29 100%);color:#1a1a1a;text-decoration:none;transition:all .2s ease;font-weight:600;box-shadow:0 2px 8px #ffc02e4d}.sidebar-home-btn:hover{box-shadow:0 4px 12px #ffc02e66;transform:translateY(-1px)}.sidebar-home-btn .sidebar-item-icon{font-size:1.25rem}.sidebar-back-btn{display:flex;align-items:center;gap:.75rem;padding:.75rem .875rem;margin-bottom:.75rem;border-radius:.625rem;background:#f9fafb;color:#4b5563;text-decoration:none;transition:all .2s ease;font-weight:500;border:1px solid #e5e7eb}.sidebar-back-btn:hover{background:#fff;color:#1a1a1a;border-color:#d1d5db;transform:translate(-2px)}.sidebar-divider{height:1px;background:#f3f4f6;margin:1rem 0}.sidebar-nav{display:flex;flex-direction:column;gap:.25rem}.sidebar-item{display:flex;align-items:center;gap:.75rem;padding:.75rem .875rem;border-radius:.625rem;color:#6b7280;text-decoration:none;transition:all .2s ease;font-weight:500;position:relative}.sidebar-item:hover{color:#1a1a1a;background-color:#f9fafb;transform:translate(2px)}.sidebar-item-icon{font-size:1.125rem;width:1.375rem;height:1.375rem;display:flex;align-items:center;justify-content:center;flex-shrink:0}.sidebar-item:hover .sidebar-item-icon{transform:scale(1.05)}.sidebar-item-label{font-size:.9375rem;letter-spacing:-.01em}.sidebar-item.active{background:linear-gradient(135deg,var(--brand-color) 0%,#E6AD29 100%);color:#1a1a1a;font-weight:600;box-shadow:0 2px 8px #ffc02e4d}.sidebar-item.active:hover{transform:translate(0);box-shadow:0 4px 12px #ffc02e66}.sidebar-item.active .sidebar-item-icon{transform:scale(1)}.sidebar-logout{margin-top:auto;padding-top:1.5rem;border-top:1px solid #f3f4f6}.sidebar-logout-btn{display:flex;align-items:center;gap:.75rem;padding:.75rem .875rem;border-radius:.625rem;color:#dc2626;background-color:#fef2f2;border:1px solid #fecaca;text-decoration:none;transition:all .2s ease;font-weight:500;cursor:pointer;width:100%;font-size:.9375rem}.sidebar-logout-btn:hover{background-color:#fee2e2;border-color:#fca5a5;color:#b91c1c;transform:translate(2px)}.sidebar-logout-btn .sidebar-item-icon{font-size:1.125rem;width:1.375rem;height:1.375rem;display:flex;align-items:center;justify-content:center}.input-field{width:100%;padding:.75rem;border:1px solid #d1d5db;border-radius:.5rem;transition:all .2s}.input-field:focus{outline:none;border-color:var(--brand-color);box-shadow:0 0 0 3px #ffc02e33}.study-slide{opacity:0;transform:translateY(20px);transition:all .4s ease-out}.study-slide.slide-visible{opacity:1;transform:translateY(0)}.study-slide.slide-exit{opacity:0;transform:translateY(-20px);transition:all .3s ease-in}.playback-controls{display:flex;gap:.5rem;align-items:center}.speed-btn{background:#fff;color:#1a1a1a;padding:.5rem .875rem;border-radius:.5rem;font-size:.875rem;font-weight:700;border:2px solid var(--brand-color);cursor:pointer;transition:all .3s ease;min-width:3rem}.speed-btn:hover{background:var(--brand-color);transform:scale(1.05)}.autoplay-btn{background:linear-gradient(135deg,var(--brand-color) 0%,#E6AD29 100%);color:#1a1a1a;padding:.5rem 1rem;border-radius:.5rem;font-size:.875rem;font-weight:600;border:none;cursor:pointer;transition:all .3s ease;box-shadow:0 2px 8px #ffc02e4d}.autoplay-btn:hover{transform:scale(1.05);box-shadow:0 4px 12px #ffc02e66}.autoplay-btn.playing{animation:pulse 2s infinite;box-shadow:0 0 20px #ffc02e99}@keyframes pulse{0%,to{opacity:1}50%{opacity:.85}}.progress-indicator{height:4px;background:#ffc02e33;border-radius:2px;overflow:hidden;margin-bottom:1rem}.progress-fill-animated{height:100%;background:linear-gradient(90deg,var(--brand-color) 0%,#E6AD29 100%);width:0;animation:progressFill 5s linear}@keyframes progressFill{0%{width:0}to{width:100%}}.animate-in{opacity:0;transform:translateY(30px);transition:all .6s cubic-bezier(.34,1.56,.64,1)}.animate-in.animated{opacity:1;transform:translateY(0)}.item-reveal{animation:itemSlideIn .5s cubic-bezier(.34,1.56,.64,1) forwards}@keyframes itemSlideIn{0%{opacity:0;transform:translate(-20px)}to{opacity:1;transform:translate(0)}}.step{opacity:0;transform:translate(-30px)}.step.step-reveal{animation:stepReveal .6s cubic-bezier(.34,1.56,.64,1) forwards}@keyframes stepReveal{0%{opacity:0;transform:translate(-30px)}to{opacity:1;transform:translate(0)}}.step.step-highlight{animation:highlightPulse 1s ease-in-out}@keyframes highlightPulse{0%,to{background:#fff;transform:scale(1)}50%{background:#ffc02e33;transform:scale(1.02);box-shadow:0 4px 20px #ffc02e4d}}.typing-effect{position:relative}.typing-effect:after{content:"|";animation:blink .7s infinite;margin-left:2px}@keyframes blink{0%,49%{opacity:1}50%,to{opacity:0}}.important-note{background:linear-gradient(135deg,#fef3c7,#fde68a);border:2px solid #f59e0b;border-left:4px solid #f59e0b;padding:1rem 1.5rem;border-radius:.75rem;margin-top:1.5rem;position:relative;overflow:hidden}.important-note:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(245,158,11,.2),transparent);animation:shimmer 3s infinite}.difference-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1rem;margin-top:1rem}.diff-card{background:#fff;border:2px solid #e5e7eb;border-radius:.75rem;padding:1.25rem;text-align:center;opacity:0;animation:cardPop .5s cubic-bezier(.34,1.56,.64,1) forwards}.diff-card:nth-child(1){animation-delay:.2s}.diff-card:nth-child(2){animation-delay:.4s}@keyframes cardPop{0%{opacity:0;transform:scale(.8) rotate(-5deg)}to{opacity:1;transform:scale(1) rotate(0)}}strong{position:relative;background:linear-gradient(180deg,transparent 60%,rgba(255,192,46,.3) 60%);padding:0 .25rem}em{color:var(--brand-color);font-style:normal;font-weight:600}.slide-agent-html :is(strong,b){background:none;background-image:none;padding:0;position:static}.slide-agent-html :is(em,i){color:revert;font-style:revert;font-weight:revert}.slide-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem;padding-bottom:.75rem;border-bottom:2px solid rgba(255,192,46,.2)}.slide-number{font-size:.875rem;color:#666;font-weight:600}.slide-subtitle{font-size:.875rem;color:var(--brand-color);font-weight:600}.slide-icon{text-align:center;font-size:3rem;margin:1rem 0;animation:bounceIn .6s ease-out}@keyframes bounceIn{0%{transform:scale(0) rotate(-10deg);opacity:0}50%{transform:scale(1.2) rotate(5deg)}75%{transform:scale(.95) rotate(-2deg)}to{transform:scale(1) rotate(0);opacity:1}}.slide-title{font-size:1.875rem;font-weight:700;margin-bottom:1.25rem;text-align:center;color:#1a1a1a}.slide-content{margin:1.25rem 0;line-height:1.6}.slide-type-intro{background:linear-gradient(135deg,rgba(255,192,46,.1) 0%,transparent 100%);border-left:4px solid var(--brand-color)}.slide-type-problem{background:linear-gradient(135deg,rgba(59,130,246,.05) 0%,transparent 100%);border-left:4px solid #3b82f6}.slide-type-practice{background:linear-gradient(135deg,rgba(16,185,129,.05) 0%,transparent 100%);border-left:4px solid #10b981}.slide-type-summary{background:linear-gradient(135deg,rgba(139,92,246,.05) 0%,transparent 100%);border-left:4px solid #8b5cf6}.definition-box,.formula-box,.problem-statement{background:linear-gradient(135deg,#ffc02e1a,#ffc02e0d);border:2px solid rgba(255,192,46,.3);border-radius:var(--radius-lg);padding:var(--space-xl);margin:var(--space-lg) 0;max-height:50vh;overflow-y:auto}.learning-objectives,.key-points{background:#fff;border:2px solid #e5e7eb;border-radius:.75rem;padding:1.25rem;margin:1rem 0}.learning-objectives ul,.key-points ul{list-style:none;padding:0}.learning-objectives li{padding:.5rem 0;color:#374151}.point-card{background:#f9fafb;padding:.875rem;border-radius:.5rem;border-left:3px solid var(--brand-color)}.real-life-example{background:linear-gradient(135deg,#dbeafe,#e0e7ff);border-left:4px solid #3b82f6;padding:.875rem 1.25rem;border-radius:.75rem;margin-top:1rem}.motion-types{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1rem;margin-top:1rem}.type-card{background:#fff;border:2px solid #e5e7eb;border-radius:.75rem;padding:1rem;text-align:center;transition:all .3s ease}.type-card:hover{transform:translateY(-4px);border-color:var(--brand-color);box-shadow:0 10px 20px #0000001a}.type-icon{font-size:2.5rem;margin-bottom:.75rem}.example{margin-top:.75rem;font-size:.875rem;color:#6b7280;font-style:italic}.comparison-table{border:2px solid #e5e7eb;border-radius:.75rem;overflow:hidden;margin:1rem 0}.comparison-row{display:grid;grid-template-columns:1fr 1fr 1fr;gap:0;opacity:0;transform:translate(-20px);animation:rowSlideIn .5s ease-out forwards}.comparison-row:nth-child(1){animation-delay:0s}.comparison-row:nth-child(2){animation-delay:.1s}.comparison-row:nth-child(3){animation-delay:.2s}.comparison-row:nth-child(4){animation-delay:.3s}.comparison-row:nth-child(5){animation-delay:.4s}@keyframes rowSlideIn{0%{opacity:0;transform:translate(-20px)}to{opacity:1;transform:translate(0)}}.comparison-row.header{background:var(--brand-color);color:#1a1a1a;font-weight:700}.comparison-row .col{padding:.875rem;border-right:1px solid #e5e7eb;border-bottom:1px solid #e5e7eb;font-size:.9375rem}.comparison-row .col:last-child{border-right:none}.comparison-row:last-child .col{border-bottom:none}.visual-example{margin-top:1rem}.example-box{background:#f9fafb;border:2px dashed #d1d5db;border-radius:.75rem;padding:1.25rem;text-align:center}.path-visual{font-size:1.75rem;margin-bottom:.75rem;letter-spacing:.2rem}.formula-display{background:#fff;padding:1.25rem;border-radius:.75rem;text-align:center;margin:.75rem 0}.formula-display p{margin:.375rem 0;opacity:0;animation:fadeInUp .6s ease-out forwards}.formula-display p:nth-child(1){animation-delay:.2s}.formula-display p:nth-child(2){animation-delay:.4s}.formula-display p:nth-child(3){animation-delay:.6s}@keyframes fadeInUp{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.units{background:#f3f4f6;padding:.75rem;border-radius:.5rem;font-size:.875rem}.speed-types,.acc-types{display:flex;flex-direction:column;gap:1rem;margin-top:1rem}.speed-type,.acc-type{background:#fff;border:2px solid #e5e7eb;border-radius:.75rem;padding:1rem;transition:all .3s ease}.speed-type:hover,.acc-type:hover{border-color:var(--brand-color);transform:translate(4px)}.acc-type.positive{border-left:4px solid #10b981}.acc-type.negative{border-left:4px solid #ef4444}.acc-type.zero{border-left:4px solid #6b7280}.formula-small{margin-top:.5rem;padding:.5rem;background:#fef3c7;border-radius:.375rem;font-size:.875rem;font-weight:600}.problem-text{font-size:1rem;padding:1rem;background:#fff;border-left:4px solid #3b82f6;border-radius:.5rem;font-weight:500;position:relative;overflow:hidden}.problem-text:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(59,130,246,.1),transparent);animation:shimmer 2s infinite}@keyframes shimmer{0%{left:-100%}to{left:100%}}.solution-steps{display:flex;flex-direction:column;gap:1.5rem}.step{background:#fff;border:2px solid #e5e7eb;border-radius:.75rem;position:relative;padding:1.25rem 1.25rem 1.25rem 1.5rem}.step strong{display:block;color:var(--brand-color);margin-bottom:.75rem;font-size:1.1rem}.step p{margin:.25rem 0;padding-left:1rem}.tip{background:#fef3c7;padding:.75rem;border-radius:.5rem;margin-top:.75rem;font-size:.875rem;border-left:3px solid #f59e0b}.answer-box{background:linear-gradient(135deg,#d1fae5,#a7f3d0);border:2px solid #10b981;border-radius:.75rem;padding:1rem;font-size:1rem;text-align:center;margin-top:.75rem;animation:finalAnswerReveal .8s cubic-bezier(.34,1.56,.64,1) forwards;opacity:0;transform:scale(.9)}@keyframes finalAnswerReveal{0%{opacity:0;transform:scale(.9)}60%{transform:scale(1.05)}to{opacity:1;transform:scale(1)}}.approach-steps{list-style:none;counter-reset:approach-counter;padding:0}.approach-steps li{counter-increment:approach-counter;position:relative;padding-left:2.25rem;padding-top:.375rem;padding-bottom:.375rem;margin-bottom:.375rem;font-size:.9375rem}.approach-steps li:before{content:counter(approach-counter);position:absolute;left:0;top:.375rem;background:var(--brand-color);color:#1a1a1a;width:1.5rem;height:1.5rem;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:.875rem}.equations{display:grid;gap:1rem;margin:1.25rem 0}.equation-card{background:#fff;border:2px solid #e5e7eb;border-radius:.75rem;padding:1.25rem;text-align:center;transition:all .3s ease}.equation-card:hover{border-color:var(--brand-color);transform:scale(1.02);box-shadow:0 10px 25px #ffc02e33}.equation-number{font-size:1rem;font-weight:700;color:var(--brand-color);margin-bottom:.75rem}.equation-formula{font-size:1.5rem;font-weight:700;margin:1rem 0;font-family:Courier New,monospace;color:#1a1a1a}.equation-use{font-size:.875rem;color:#6b7280;font-style:italic}.symbols-guide{background:#f9fafb;border:2px solid #e5e7eb;border-radius:.75rem;padding:1.25rem}.symbols p{margin:.375rem 0;font-family:Courier New,monospace;font-size:.9375rem}.quiz-section{background:linear-gradient(135deg,#dbeafe,#e0e7ff);border:2px solid #3b82f6;border-radius:.75rem;padding:1.25rem;margin:1.25rem 0}.quiz-title{font-size:1.125rem;font-weight:700;color:#1e40af;margin-bottom:.75rem}.quiz-question{font-size:1rem;font-weight:500;margin-bottom:1rem;color:#1f2937}.quiz-options{display:flex;flex-direction:column;gap:.75rem}.quiz-option{background:#fff;border:2px solid #93c5fd;border-radius:.75rem;padding:.875rem 1rem;text-align:left;font-size:.9375rem;cursor:pointer;transition:all .3s ease}.quiz-option:hover:not(:disabled){background:#eff6ff;border-color:#3b82f6;transform:translate(4px)}.quiz-option:disabled{cursor:not-allowed}.quiz-option.correct{background:#d1fae5;border-color:#10b981;font-weight:600}.quiz-option.incorrect{background:#fee2e2;border-color:#ef4444}.quiz-result{margin-top:1rem;padding:1rem;border-radius:.75rem;opacity:0;transform:translateY(-10px);transition:all .3s ease}.quiz-result.show{opacity:1;transform:translateY(0)}.result-correct{background:#d1fae5;border:2px solid #10b981;padding:1rem;border-radius:.75rem;color:#065f46}.result-incorrect{background:#fee2e2;border:2px solid #ef4444;padding:1rem;border-radius:.75rem;color:#991b1b}.practice-section{background:linear-gradient(135deg,#d1fae5,#a7f3d0);border:2px solid #10b981;border-radius:.75rem;padding:1.25rem;margin:1.25rem 0}.practice-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem}.practice-title{font-size:1.125rem;font-weight:700;color:#065f46}.practice-progress{display:flex;gap:.375rem}.practice-dot{width:.625rem;height:.625rem;border-radius:50%;background:#d1d5db;transition:all .3s ease}.practice-dot.completed{background:#10b981}.practice-dot.current{background:#10b981;transform:scale(1.2)}.practice-question{font-size:1rem;font-weight:500;margin-bottom:1rem;color:#1f2937}.practice-options{display:flex;flex-direction:column;gap:.75rem}.practice-option{background:#fff;border:2px solid #6ee7b7;border-radius:.75rem;padding:.875rem 1rem;text-align:left;font-size:.9375rem;cursor:pointer;transition:all .3s ease}.practice-option:hover:not(:disabled){background:#ecfdf5;border-color:#10b981;transform:translate(4px)}.practice-option:disabled{cursor:not-allowed}.practice-option.correct{background:#d1fae5;border-color:#10b981;font-weight:600}.practice-option.incorrect{background:#fee2e2;border-color:#ef4444}.practice-result{margin-top:1rem;opacity:0;transform:translateY(-10px);transition:all .3s ease}.practice-result.show{opacity:1;transform:translateY(0)}.practice-results{text-align:center;padding:1.5rem}.results-icon{font-size:4rem;margin-bottom:.75rem;animation:bounceIn .6s ease-out}.results-title{font-size:1.75rem;font-weight:700;margin-bottom:1rem;color:#1a1a1a}.results-score{margin:1.5rem 0}.score-circle{display:inline-block;background:linear-gradient(135deg,var(--brand-color) 0%,#E6AD29 100%);border-radius:50%;padding:1.5rem;box-shadow:0 10px 30px #ffc02e66}.score-number{font-size:2.5rem;font-weight:700;color:#1a1a1a}.score-label{font-size:.9375rem;color:#1a1a1a;margin-top:.375rem}.results-message{font-size:1rem;color:#4b5563;margin:1rem 0}.results-actions{display:flex;gap:1rem;justify-content:center;margin-top:2rem}.summary-points{display:grid;gap:1rem;margin:1.25rem 0}.summary-card{background:#fff;border:2px solid #e5e7eb;border-radius:.75rem;padding:1.25rem;border-left:4px solid var(--brand-color)}.summary-card ul{list-style:none;padding:0;margin-top:.75rem}.summary-card li{padding:.375rem 0 .375rem 1.25rem;position:relative;font-size:.9375rem}.summary-card li:before{content:"→";position:absolute;left:0;color:var(--brand-color);font-weight:700}.congratulations{background:linear-gradient(135deg,#fef3c7,#fde68a);border:3px solid var(--brand-color);border-radius:.75rem;padding:1.5rem}.completion-message{text-align:center;padding:2rem 1.5rem}.completion-icon{font-size:4rem;margin-bottom:1rem;animation:bounceIn .8s ease-out}.completion-title{font-size:2rem;font-weight:700;margin-bottom:.75rem;color:#1a1a1a}.completion-text{font-size:1.125rem;color:#4b5563;margin-bottom:1.5rem}.completion-actions{display:flex;gap:1rem;justify-content:center;flex-wrap:wrap}.slide-navigation{display:flex;justify-content:space-between;align-items:center;margin-top:2rem;padding-top:1.5rem;border-top:2px solid #e5e7eb}.nav-btn{padding:.75rem 1.5rem;font-size:.9375rem;font-weight:600;border-radius:.75rem;transition:all .3s ease}.slide-indicators{display:flex;gap:.5rem;align-items:center}.indicator{width:.75rem;height:.75rem;border-radius:50%;background:#d1d5db;cursor:pointer;transition:all .3s ease}.indicator:hover{transform:scale(1.3)}.indicator.active{background:var(--brand-color);width:2rem;border-radius:1rem}.indicator.completed{background:#10b981}.test-layout{display:grid;grid-template-columns:320px 1fr;gap:var(--space-2xl);align-items:start}.test-sidebar{position:sticky;top:120px;background:#fff;border-radius:var(--radius-xl);border:2px solid var(--gray-200);padding:var(--space-xl);box-shadow:0 4px 12px #0000000d}.sidebar-sticky{display:flex;flex-direction:column;gap:var(--space-xl)}.sidebar-chapter-info{padding-bottom:var(--space-lg);border-bottom:2px solid var(--gray-100)}.sidebar-subject-badge{display:inline-block;background:linear-gradient(135deg,var(--brand-color) 0%,#f59e0b 100%);color:var(--gray-900);font-size:var(--font-xs);font-weight:700;padding:var(--space-xs) var(--space-md);border-radius:var(--radius-md);text-transform:uppercase;letter-spacing:.05em;margin-bottom:var(--space-md)}.sidebar-chapter-title{font-size:var(--font-xl);font-weight:700;color:var(--gray-900);line-height:1.3;margin:0}.sidebar-timer-compact{display:flex;align-items:center;gap:var(--space-sm);background:var(--gray-100);border-radius:var(--radius-md);padding:var(--space-sm) var(--space-md);justify-content:center}.timer-compact-icon{font-size:var(--font-base)}.timer-compact-label{font-size:var(--font-xs);font-weight:600;color:var(--gray-600)}.timer-compact-value{font-size:var(--font-sm);font-weight:700;color:var(--gray-900);font-family:Courier New,monospace;min-width:2rem}.sidebar-progress-card{background:linear-gradient(135deg,#fafafa,#fff);border:2px solid var(--gray-200);border-radius:var(--radius-lg);padding:var(--space-lg)}.progress-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--space-md)}.progress-label{font-size:var(--font-sm);font-weight:600;color:var(--gray-600);text-transform:uppercase;letter-spacing:.05em}.progress-percentage{font-size:var(--font-2xl);font-weight:700;color:var(--brand-color)}.progress-bar-container{background:var(--gray-200);height:10px;border-radius:var(--radius-md);overflow:hidden;margin-bottom:var(--space-lg)}.progress-bar-fill{background:linear-gradient(90deg,var(--brand-color) 0%,#f59e0b 100%);height:100%;transition:width .5s ease;border-radius:var(--radius-md)}.progress-stats{display:flex;align-items:center;justify-content:space-around}.stat-item{display:flex;flex-direction:column;align-items:center;gap:var(--space-xs)}.stat-value{font-size:var(--font-2xl);font-weight:700;color:var(--gray-900)}.stat-label{font-size:var(--font-xs);font-weight:600;color:var(--gray-500);text-transform:uppercase;letter-spacing:.05em}.stat-divider{width:2px;height:40px;background:var(--gray-200)}.sidebar-questions-list{display:flex;flex-direction:column;gap:var(--space-md)}.sidebar-section-title{font-size:var(--font-sm);font-weight:700;color:var(--gray-700);text-transform:uppercase;letter-spacing:.05em;margin:0}.questions-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:var(--space-sm)}.questions-grid--quiz{gap:var(--space-md);width:100%}.questions-grid--quiz .question-item{min-width:0;width:100%;max-width:100%}.question-item{position:relative;aspect-ratio:1;display:flex;align-items:center;justify-content:center;background:var(--gray-100);color:var(--gray-600);border:2px solid var(--gray-200);border-radius:var(--radius-md);font-size:var(--font-sm);font-weight:600;cursor:pointer;transition:all var(--transition-fast)}.question-item-num{line-height:1}.question-item-mark{position:absolute;bottom:3px;right:3px;font-size:.65rem;font-weight:800;line-height:1;pointer-events:none}.question-item.correct .question-item-mark,.question-item.wrong .question-item-mark{color:#fffffff2}.question-item.viewed-solution .question-item-mark{color:#ffffffe6}.question-item:hover{background:var(--gray-200);border-color:var(--gray-300);transform:scale(1.05)}.question-item.correct{background:#10b981;color:#fff;border-color:#059669}.question-item.wrong{background:#ef4444;color:#fff;border-color:#dc2626}.question-item.viewed-solution{background:#94a3b8;color:#fff;border-color:#64748b}.question-item.correct.active{background:#059669;color:#fff;border-color:var(--gray-900);box-shadow:0 0 0 3px var(--brand-color);transform:scale(1.08)}.question-item.wrong.active{background:#dc2626;color:#fff;border-color:var(--gray-900);box-shadow:0 0 0 3px var(--brand-color);transform:scale(1.08)}.question-item.viewed-solution.active{background:#64748b;color:#fff;border-color:var(--gray-900);box-shadow:0 0 0 3px var(--brand-color);transform:scale(1.08)}.question-item.active:not(.correct):not(.wrong):not(.viewed-solution){background:var(--brand-color);color:var(--gray-900);border-color:var(--gray-900);font-weight:700;transform:scale(1.1)}.test-main-area{min-width:0}.test-container{padding:0;overflow:hidden;min-height:auto}#test-content{padding:var(--space-xl);min-height:auto;max-height:calc(100vh - 180px);overflow-y:auto}.question-content{max-height:calc(100vh - 280px);overflow-y:auto;padding-right:var(--space-sm);padding-bottom:var(--space-xl)}.test-bottom-actions{position:sticky;bottom:0;background:#fff;border-top:1px solid var(--gray-200);padding:var(--space-sm) var(--space-xl);margin:0 calc(-1 * var(--space-xl));box-shadow:0 -1px 4px #0000000d}.action-buttons-row{display:flex;align-items:center;gap:var(--space-sm);flex-wrap:nowrap}.feedback-inline{font-size:var(--font-sm);font-weight:700;padding:var(--space-sm) var(--space-md);border-radius:var(--radius-md);display:flex;align-items:center;gap:var(--space-xs);white-space:nowrap;flex-shrink:0}.feedback-inline.correct{background:#d1fae5;color:#065f46}.feedback-inline.wrong{background:#fed7aa;color:#92400e}.feedback-inline.solution-viewed{background:#e2e8f0;color:#475569}.btn-action-compact{padding:var(--space-sm) var(--space-md);border-radius:var(--radius-md);font-size:var(--font-xs);font-weight:600;cursor:pointer;transition:all var(--transition-fast);border:2px solid;white-space:nowrap;flex-shrink:0}.btn-submit-compact{background:var(--brand-color);color:var(--gray-900);border-color:var(--gray-900);flex:1}.btn-submit-compact:hover{background:var(--brand-hover)}.btn-next{background:var(--brand-color);color:var(--gray-900);border-color:var(--gray-900);flex:1}.btn-next:hover{background:var(--brand-hover)}.btn-skip-compact{background:#fff;color:var(--gray-600);border-color:var(--gray-300)}.btn-skip-compact:hover{background:var(--gray-100);border-color:var(--gray-400)}.btn-retake-compact{background:#fef3c7;color:var(--gray-900);border-color:#f59e0b}.btn-retake-compact:hover{background:#fde68a}.btn-solution-compact{background:#dbeafe;color:#1e40af;border-color:#3b82f6}.btn-solution-compact:hover{background:#bfdbfe}.toast-notification{position:fixed;top:100px;left:50%;transform:translate(-50%) translateY(-150%);background:linear-gradient(135deg,#fef3c7,#fde68a);color:#78350f;padding:var(--space-md) var(--space-xl);border-radius:var(--radius-lg);border:2px solid #f59e0b;box-shadow:0 8px 24px #f59e0b66;z-index:200;display:flex;align-items:center;gap:var(--space-md);font-weight:600;font-size:var(--font-sm);transition:all .4s cubic-bezier(.34,1.56,.64,1);max-width:400px;opacity:0}.toast-notification.show{transform:translate(-50%) translateY(0);opacity:1}.toast-icon{font-size:var(--font-2xl);flex-shrink:0;animation:iconBounce .5s ease-out}@keyframes iconBounce{0%,to{transform:scale(1)}50%{transform:scale(1.2)}}.toast-message{flex:1}.shake{animation:shake .4s cubic-bezier(.36,.07,.19,.97) both}@keyframes shake{10%,90%{transform:translate(-2px)}20%,80%{transform:translate(4px)}30%,50%,70%{transform:translate(-4px)}40%,60%{transform:translate(4px)}}.typeform-question{animation:questionSlideIn .5s cubic-bezier(.34,1.56,.64,1)}@keyframes questionSlideIn{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}.question-exit{animation:questionSlideOut .3s ease-in}@keyframes questionSlideOut{0%{opacity:1;transform:translateY(0)}to{opacity:0;transform:translateY(-30px)}}.question-enter{animation:questionSlideIn .5s cubic-bezier(.34,1.56,.64,1)}.question-number{font-size:var(--font-xs);color:var(--brand-color);font-weight:700;text-transform:uppercase;letter-spacing:.05em;margin-bottom:var(--space-md)}.math-content{line-height:1.5;word-break:break-word}.math-content .math-text-plain{white-space:pre-wrap}.math-content .katex-display{display:block;margin:.65rem 0;text-align:center}.math-content .katex-inline .katex,.math-content .katex-display .katex{font-size:1.08em}.option-label .math-content .katex-inline .katex,.option-label .math-content .katex-display .katex{font-size:1em}.option-label .math-content{flex:1;min-width:0;align-self:center}.question-text{font-size:var(--font-2xl);font-weight:700;line-height:1.3;margin-bottom:var(--space-xl);color:var(--gray-900)}.question-text.math-content{font-weight:700}.quiz-question-images-wrap{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:var(--space-md);margin-top:calc(-1 * var(--space-sm));margin-bottom:var(--space-xl)}.quiz-question-image-card{margin:0;border:1px solid var(--gray-200);border-radius:var(--radius-lg);background:linear-gradient(180deg,#fff,#f8fafc);padding:var(--space-sm);box-shadow:0 8px 20px #0f172a0f}.quiz-question-image-shell{border-radius:var(--radius-md);border:1px solid var(--gray-200);overflow:hidden;background:#f8fafc;min-height:160px;display:grid;place-items:center;position:relative}.quiz-question-image-shell.is-loading:after{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:linear-gradient(90deg,#f1f5f940,#f1f5f9d9,#f1f5f940);transform:translate(-100%);animation:quizImageShimmer 1.4s infinite}.quiz-question-image{width:100%;max-height:min(48vh,420px);-o-object-fit:contain;object-fit:contain;display:block;background:#fff}.quiz-question-image-caption{font-size:var(--font-xs);color:var(--gray-500);margin-top:var(--space-sm);font-weight:600}.quiz-question-image-error{border:1px dashed #f59e0b;background:#fffbeb;color:#92400e;border-radius:var(--radius-md);min-height:96px;display:flex;align-items:center;justify-content:center;gap:var(--space-sm);padding:var(--space-md);font-size:var(--font-sm)}@keyframes quizImageShimmer{to{transform:translate(100%)}}.options-container{display:flex;flex-direction:column;gap:var(--space-md);margin-bottom:var(--space-xl)}.option-wrapper{opacity:0;animation:optionFadeIn .4s ease-out forwards}@keyframes optionFadeIn{0%{opacity:0;transform:translate(-20px)}to{opacity:1;transform:translate(0)}}.option-wrapper input[type=radio]{display:none}.option-label{display:flex;align-items:center;gap:var(--space-lg);padding:var(--space-lg) var(--space-xl);background:#fff;border:2px solid var(--gray-200);border-radius:var(--radius-lg);cursor:pointer;transition:all .3s cubic-bezier(.34,1.56,.64,1);position:relative;overflow:hidden}.option-label:before{content:"";position:absolute;left:0;top:0;width:0;height:100%;background:linear-gradient(90deg,rgba(255,192,46,.1) 0%,transparent 100%);transition:width .3s ease}.option-label:hover{border-color:var(--brand-color);transform:translate(8px);box-shadow:0 4px 12px #00000014}.option-label:hover:before{width:100%}.option-letter{width:2rem;height:2rem;background:var(--gray-100);border:2px solid var(--gray-300);border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:var(--font-base);transition:all .3s ease;flex-shrink:0}.option-text{flex:1;font-size:var(--font-base);font-weight:500;color:var(--gray-700)}.option-check{font-size:var(--font-xl);color:var(--brand-color);opacity:0;transform:scale(0);transition:all .3s cubic-bezier(.34,1.56,.64,1)}input[type=radio]:checked+.option-label{border-color:var(--brand-color);background:#ffc02e0d;box-shadow:0 4px 16px #ffc02e33}input[type=radio]:checked+.option-label .option-letter{background:var(--brand-color);border-color:var(--brand-color);color:var(--gray-900);transform:scale(1.1)}input[type=radio]:checked+.option-label .option-check{opacity:1;transform:scale(1)}.option-label.selected{animation:optionSelect .5s cubic-bezier(.34,1.56,.64,1)}@keyframes optionSelect{0%{transform:scale(1)}50%{transform:scale(1.02)}to{transform:scale(1)}}.option-wrapper--correct .option-label,.option-wrapper--correct input[type=radio]:checked+.option-label,.option-wrapper--correct input[type=radio]:disabled+.option-label{background:#d1fae5!important;border-color:#059669!important;box-shadow:none;transform:none;cursor:default}.option-wrapper--correct .option-label:before,.option-wrapper--wrong-pick .option-label:before{display:none}.option-wrapper--correct .option-label:hover{border-color:#059669!important;transform:none;box-shadow:none}.option-wrapper--correct .option-label .option-text{color:#065f46;font-weight:600}.option-wrapper--correct .option-label .option-letter{background:#10b981!important;border-color:#047857!important;color:#fff!important}.option-wrapper--correct .option-label .option-check{opacity:1;transform:scale(1);color:#059669}.option-wrapper--wrong-pick .option-label,.option-wrapper--wrong-pick input[type=radio]:checked+.option-label,.option-wrapper--wrong-pick input[type=radio]:disabled+.option-label{background:#ffedd5!important;border-color:#ea580c!important;box-shadow:none;transform:none;cursor:default}.option-wrapper--wrong-pick .option-label:hover{border-color:#ea580c!important;transform:none;box-shadow:none}.option-wrapper--wrong-pick .option-label .option-text{color:#9a3412;font-weight:600}.option-wrapper--wrong-pick .option-label .option-letter{background:#fb923c!important;border-color:#c2410c!important;color:#fff!important}.option-wrapper--wrong-pick .option-label .option-check{opacity:0;transform:scale(0)}.solution-sidekick{position:fixed;right:-500px;top:0;width:500px;height:100vh;background:linear-gradient(to bottom,#fafafa,#fff);box-shadow:-4px 0 24px #00000026;z-index:100;transition:right .3s ease;overflow:hidden;display:flex;flex-direction:column}body.solution-open .solution-sidekick{right:0}body.solution-open .solution-overlay{opacity:1;pointer-events:auto}.solution-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0006;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);z-index:99;opacity:0;pointer-events:none;transition:opacity .3s ease}.solution-header{background:#fff;padding:var(--space-lg) var(--space-xl);display:flex;justify-content:space-between;align-items:center;flex-shrink:0;z-index:10;border-bottom:1px solid var(--gray-200);box-shadow:0 1px 3px #0000000d}.solution-title{display:flex;align-items:center;gap:var(--space-sm);font-size:var(--font-lg);font-weight:600;color:var(--gray-900)}.solution-title:before{content:"🤖";font-size:var(--font-xl)}.close-solution{width:2.25rem;height:2.25rem;flex-shrink:0;background:var(--gray-100);border:none;border-radius:var(--radius-md);font-size:1.35rem;line-height:1;cursor:pointer;transition:all .2s ease;display:flex;align-items:center;justify-content:center;color:var(--gray-700)}.close-solution:hover{background:var(--gray-200);color:var(--gray-900)}.solution-content{padding:var(--space-xl);flex:1;min-height:0;overflow-y:auto;scroll-behavior:smooth;-webkit-overflow-scrolling:touch}.solution-footer-actions{position:sticky;bottom:0;margin-top:var(--space-xl);padding-top:var(--space-md);border-top:1px solid var(--gray-100);background:linear-gradient(to top,#fff 85%,#fff0);display:flex;flex-direction:column;gap:var(--space-sm)}.solution-footer-actions__primary{width:100%;border:none;border-radius:var(--radius-lg);background:#0f274d;color:#f8fafc;padding:.85rem 1rem;font-size:var(--font-sm);font-weight:700;cursor:pointer;transition:background .2s ease}.solution-footer-actions__primary:hover:not(:disabled){background:#1a3560}.solution-footer-actions__primary:disabled{opacity:.5;cursor:not-allowed}.solution-footer-actions__close{width:100%;border:1px solid #059669;border-radius:var(--radius-lg);background:#059669;color:#fff;padding:.75rem 1rem;font-size:var(--font-sm);font-weight:600;cursor:pointer;transition:background .2s ease,border-color .2s ease}.solution-footer-actions__close:hover{background:#047857;border-color:#047857;color:#fff}.ai-response-intro{margin-bottom:var(--space-xl)}.ai-correct-msg{background:linear-gradient(135deg,#d1fae5,#a7f3d0);border:1px solid #10b981;border-left:3px solid #10b981;border-radius:var(--radius-lg);padding:var(--space-lg);font-size:var(--font-base);font-weight:600;color:#065f46}.ai-incorrect-msg{background:linear-gradient(135deg,#fef3c7,#fef9e7);border:1px solid #f59e0b;border-left:3px solid #f59e0b;border-radius:var(--radius-lg);padding:var(--space-lg);font-size:var(--font-base);font-weight:600;color:#92400e}.ai-solution-viewed-msg{background:linear-gradient(135deg,#e0e7ff,#dbeafe);border:1px solid #3b82f6;border-left:3px solid #3b82f6;border-radius:var(--radius-lg);padding:var(--space-lg);font-size:var(--font-base);font-weight:600;color:#1e40af}.solution-answer{background:linear-gradient(135deg,#fef3c7,#fef9e7);border:2px solid var(--brand-color);border-radius:var(--radius-lg);padding:var(--space-lg);margin-bottom:var(--space-xl)}.answer-label{font-size:var(--font-xs);color:#92400e;font-weight:700;text-transform:uppercase;letter-spacing:.05em;margin-bottom:var(--space-sm);display:flex;align-items:center;gap:var(--space-xs)}.answer-label:before{content:"✓";font-size:var(--font-base)}.answer-value{font-size:var(--font-xl);font-weight:700;color:var(--gray-900)}.solution-section-title{font-size:var(--font-lg);font-weight:700;margin-bottom:var(--space-lg);color:var(--gray-900);display:flex;align-items:center;gap:var(--space-sm)}.solution-section-title:before{content:"💡";font-size:var(--font-lg)}.solution-explanation{background:#fff;border:1px solid var(--gray-200);border-radius:var(--radius-lg);padding:var(--space-lg);margin-bottom:var(--space-xl);box-shadow:0 2px 8px #0000000d;position:relative}.solution-explanation:before{content:"🤖";position:absolute;top:-10px;left:var(--space-lg);background:#fff;padding:0 var(--space-sm);font-size:var(--font-base)}.solution-explanation p{font-size:var(--font-base);line-height:1.6;color:var(--gray-700)}.solution-steps-section{margin-bottom:var(--space-2xl)}.solution-steps-list{display:flex;flex-direction:column;gap:var(--space-md)}.solution-step{display:flex;gap:var(--space-md);background:var(--gray-50);border:1px solid var(--gray-200);border-left:3px solid var(--brand-color);border-radius:var(--radius-md);padding:var(--space-lg);opacity:0;transform:translateY(10px);transition:all .3s ease}.solution-step.step-visible{opacity:1;transform:translateY(0)}.step-number{width:1.75rem;height:1.75rem;background:linear-gradient(135deg,var(--brand-color) 0%,#E6AD29 100%);color:var(--gray-900);border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:var(--font-sm);flex-shrink:0}.step-content{flex:1;font-size:var(--font-sm);line-height:1.6;color:var(--gray-700)}.solution-concept{background:linear-gradient(135deg,#eff6ff,#dbeafe);border:1px solid #3b82f6;border-left:3px solid #3b82f6;border-radius:var(--radius-lg);padding:var(--space-lg);margin-bottom:var(--space-xl)}.solution-concept:before{content:"💡 Key Concept";display:block;font-size:var(--font-xs);font-weight:700;color:#1e40af;text-transform:uppercase;letter-spacing:.05em;margin-bottom:var(--space-sm)}.solution-concept p{font-size:var(--font-sm);line-height:1.6;color:#1e3a8a;font-weight:500}.quiz-key-concept-box{border:1px solid #3b82f6;border-radius:var(--radius-lg);background:linear-gradient(135deg,#eff6ff,#f8fafc);padding:var(--space-lg);margin-top:var(--space-xl)}.quiz-key-concept-header{display:flex;align-items:center;gap:var(--space-sm)}.quiz-key-concept-icon{font-size:1.125rem;line-height:1}.quiz-key-concept-title{font-size:var(--font-xs);font-weight:800;color:#1d4ed8;text-transform:uppercase;letter-spacing:.06em}.quiz-key-concept-rule{border:none;border-top:1px solid var(--gray-200);margin:var(--space-md) 0}.quiz-key-concept-body{font-size:var(--font-sm);color:var(--gray-800);line-height:1.65}.quiz-key-concept-body .math-content{color:inherit}.solution-actions{padding:var(--space-xl);border-top:1px solid var(--gray-200);background:#fff;display:flex;flex-direction:column;gap:var(--space-md);position:sticky;bottom:0}.ai-footer-message{font-size:var(--font-xs);color:var(--gray-500);text-align:center;font-style:italic}.ai-footer-message:before{content:"✨ "}.ai-chat-header{background:linear-gradient(135deg,#6366f1,#8b5cf6);padding:var(--space-lg) var(--space-xl);display:flex;justify-content:space-between;align-items:center;position:sticky;top:0;z-index:10;box-shadow:0 4px 12px #6366f133}.ai-header-left{display:flex;align-items:center;gap:var(--space-md)}.ai-avatar{position:relative;width:56px;height:56px}.ai-avatar-icon{width:56px;height:56px;background:linear-gradient(135deg,var(--brand-color) 0%,#E6AD29 100%);border-radius:var(--radius-lg);display:flex;align-items:center;justify-content:center;font-size:24px;box-shadow:0 4px 12px #fcd34d66,0 2px 4px #0000001a,inset 0 -2px 4px #0000001a;overflow:hidden}.ai-tutor-icon-img{width:100%;height:100%;-o-object-fit:contain;object-fit:contain;padding:6px}.ai-status-indicator{position:absolute;bottom:-2px;right:-2px;width:12px;height:12px;background:#10b981;border:2px solid white;border-radius:50%;animation:pulse-status 2s ease-in-out infinite}@keyframes pulse-status{0%,to{opacity:1;transform:scale(1)}50%{opacity:.7;transform:scale(.95)}}.ai-header-info{color:#fff}.ai-assistant-name{font-size:var(--font-lg);font-weight:700;margin:0;color:#fff}.ai-status-text{font-size:var(--font-xs);margin:0;opacity:.9;color:#ffffffe6}.ai-close-btn{width:36px;height:36px;background:#fff3;border:none;border-radius:var(--radius-md);font-size:var(--font-xl);cursor:pointer;transition:all .2s ease;display:flex;align-items:center;justify-content:center;color:#fff;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.ai-close-btn:hover{background:#ffffff4d;transform:scale(1.05)}.ai-chat-content{flex:1;overflow-y:auto;padding:var(--space-xl);background:#f8fafc;scroll-behavior:smooth}.ai-question-card{background:#fff;border-radius:var(--radius-xl);padding:var(--space-lg);margin-bottom:var(--space-xl);box-shadow:0 4px 12px #00000014;border:2px solid #e2e8f0}.ai-card-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--space-md)}.ai-card-label{font-size:var(--font-sm);font-weight:700;color:#6366f1;text-transform:uppercase;letter-spacing:.05em}.ai-card-badge{font-size:var(--font-xs);background:#ede9fe;color:#7c3aed;padding:.25rem .75rem;border-radius:var(--radius-full);font-weight:600}.ai-question-text{font-size:var(--font-lg);font-weight:600;color:var(--gray-900);margin-bottom:var(--space-lg);line-height:1.5}.ai-options-list{display:flex;flex-direction:column;gap:var(--space-sm)}.ai-option-item{display:flex;align-items:center;gap:var(--space-sm);padding:var(--space-md);background:#f8fafc;border:2px solid #e2e8f0;border-radius:var(--radius-md);transition:all .2s ease;position:relative}.ai-option-item.correct-option{background:linear-gradient(135deg,#d1fae5,#a7f3d0);border-color:#10b981}.ai-option-item.wrong-option{background:linear-gradient(135deg,#fee2e2,#fecaca);border-color:#ef4444}.ai-option-item.user-selected{border-width:2px}.ai-option-letter{width:28px;height:28px;background:#fff;border:2px solid #cbd5e1;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:var(--font-sm);color:var(--gray-700);flex-shrink:0}.ai-option-item.correct-option .ai-option-letter{background:#10b981;border-color:#10b981;color:#fff}.ai-option-item.wrong-option .ai-option-letter{background:#ef4444;border-color:#ef4444;color:#fff}.ai-option-text{flex:1;font-size:var(--font-sm);color:var(--gray-700);font-weight:500}.ai-user-choice-badge{font-size:var(--font-xs);background:#3b82f6;color:#fff;padding:.25rem .5rem;border-radius:var(--radius-sm);font-weight:600}.ai-correct-badge{font-size:var(--font-lg);color:#10b981}.ai-message-group{display:flex;gap:var(--space-sm);margin-bottom:var(--space-lg)}.ai-message-group.user-message-group{flex-direction:row-reverse}.ai-message-group.ai-tutor-group{flex-direction:row}.ai-message{max-width:85%;padding:var(--space-md) var(--space-lg);border-radius:var(--radius-lg);font-size:var(--font-sm);line-height:1.6;box-shadow:0 2px 8px #0000000f}.user-message{background:linear-gradient(135deg,#3b82f6,#2563eb);color:#fff;border-bottom-right-radius:4px}.ai-tutor-message{background:#fff;color:var(--gray-800);border:1px solid #e2e8f0;border-bottom-left-radius:4px}.message-content{margin:0}.message-content strong{font-weight:700}.message-avatar{width:32px;height:32px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:var(--font-sm);flex-shrink:0}.user-avatar{background:linear-gradient(135deg,#3b82f6,#2563eb);color:#fff}.ai-tutor-avatar{width:36px;height:36px;flex-shrink:0;font-size:28px;line-height:1;background:linear-gradient(135deg,var(--brand-color) 0%,#E6AD29 100%);border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;overflow:hidden;box-shadow:0 3px 8px #fcd34d59,0 1px 3px #0000001a,inset 0 -1px 2px #0000001a}.ai-tutor-avatar-img{width:100%;height:100%;-o-object-fit:contain;object-fit:contain;padding:3px}.ai-explanation-header{display:flex;align-items:center;gap:var(--space-sm);margin-bottom:var(--space-sm);padding-bottom:var(--space-sm);border-bottom:1px solid #e2e8f0}.ai-explanation-icon{font-size:var(--font-lg)}.ai-explanation-title{font-size:var(--font-sm);font-weight:700;color:#6366f1;text-transform:uppercase;letter-spacing:.05em}.ai-step-card{background:linear-gradient(135deg,#fef3c7,#fef9e7);border:2px solid var(--brand-color);border-radius:var(--radius-lg);padding:var(--space-md);margin-bottom:var(--space-md);box-shadow:0 2px 8px #fcd34d33}.ai-step-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--space-sm)}.ai-step-number{font-size:var(--font-sm);font-weight:700;color:#92400e;text-transform:uppercase;letter-spacing:.05em}.ai-step-progress{font-size:var(--font-xs);color:#78350f;background:#ffffffb3;padding:.25rem .5rem;border-radius:var(--radius-sm);font-weight:600}.ai-step-content{font-size:var(--font-sm);color:var(--gray-800);line-height:1.6}.ai-concept-message{background:linear-gradient(135deg,#eff6ff,#dbeafe);border:2px solid #3b82f6}.ai-concept-header{display:flex;align-items:center;gap:var(--space-sm);margin-bottom:var(--space-sm);padding-bottom:var(--space-sm);border-bottom:1px solid rgba(59,130,246,.2)}.ai-concept-icon{font-size:var(--font-lg)}.ai-concept-title{font-size:var(--font-sm);font-weight:700;color:#1e40af;text-transform:uppercase;letter-spacing:.05em}.ai-recommendations-section{background:#fff;border-radius:var(--radius-lg);padding:var(--space-lg);margin-top:var(--space-xl);box-shadow:0 2px 8px #0000000f}.ai-recommend-label{font-size:var(--font-sm);font-weight:700;color:var(--gray-700);margin-bottom:var(--space-md)}.ai-recommend-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--space-sm)}.ai-recommend-btn{display:flex;flex-direction:column;align-items:center;gap:var(--space-xs);padding:var(--space-md);background:#f8fafc;border:2px solid #e2e8f0;border-radius:var(--radius-md);cursor:pointer;transition:all .2s ease;text-align:center}.ai-recommend-btn:hover{background:#ede9fe;border-color:#8b5cf6;transform:translateY(-2px);box-shadow:0 4px 12px #8b5cf633}.recommend-icon{font-size:var(--font-xl)}.recommend-text{font-size:var(--font-xs);font-weight:600;color:var(--gray-700)}.ai-chat-footer{background:#fff;border-top:2px solid #e2e8f0;padding:var(--space-lg) var(--space-xl);position:sticky;bottom:0;box-shadow:0 -4px 12px #0000000d}.ai-footer-main-actions,.ai-footer-completion-actions{display:flex;gap:var(--space-sm)}.ai-btn-primary{flex:1;display:flex;align-items:center;justify-content:center;gap:var(--space-sm);padding:var(--space-md) var(--space-lg);background:linear-gradient(135deg,#6366f1,#8b5cf6);color:#fff;border:none;border-radius:var(--radius-lg);font-size:var(--font-base);font-weight:600;cursor:pointer;transition:all .2s ease;box-shadow:0 4px 12px #6366f14d}.ai-btn-primary:hover{transform:translateY(-2px);box-shadow:0 6px 16px #6366f166}.ai-btn-primary:active{transform:translateY(0)}.ai-btn-animate{animation:pulse-btn 2s ease-in-out infinite}@keyframes pulse-btn{0%,to{box-shadow:0 4px 12px #6366f14d}50%{box-shadow:0 6px 20px #6366f180}}.ai-btn-got-it{background:linear-gradient(135deg,#10b981,#059669);box-shadow:0 4px 12px #10b9814d}.ai-btn-got-it:hover{box-shadow:0 6px 16px #10b98166}.btn-icon{font-size:var(--font-lg)}.ai-doubt-section{margin-top:var(--space-md)}.ai-doubt-input-wrapper{display:flex;gap:var(--space-sm);margin-bottom:var(--space-sm)}.ai-doubt-input{flex:1;padding:var(--space-md) var(--space-lg);border:2px solid #e2e8f0;border-radius:var(--radius-lg);font-size:var(--font-sm);font-family:inherit;transition:all .2s ease;background:#f8fafc}.ai-doubt-input:focus{outline:none;border-color:#6366f1;background:#fff;box-shadow:0 0 0 3px #6366f11a}.ai-send-btn{width:44px;height:44px;background:linear-gradient(135deg,#6366f1,#8b5cf6);color:#fff;border:none;border-radius:var(--radius-lg);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .2s ease}.ai-send-btn:hover{transform:scale(1.05);box-shadow:0 4px 12px #6366f14d}.ai-send-btn:active{transform:scale(.95)}.ai-doubt-suggestions{display:flex;flex-wrap:wrap;gap:var(--space-xs)}.ai-suggestion-chip{padding:.5rem .75rem;background:#f8fafc;border:1px solid #e2e8f0;border-radius:var(--radius-full);font-size:var(--font-xs);font-weight:500;color:var(--gray-700);cursor:pointer;transition:all .2s ease}.ai-suggestion-chip:hover{background:#ede9fe;border-color:#8b5cf6;color:#7c3aed}.ai-typing-indicator{display:flex;gap:4px;padding:var(--space-sm) 0}.ai-typing-indicator span{width:8px;height:8px;background:#94a3b8;border-radius:50%;animation:typing-bounce 1.4s ease-in-out infinite}.ai-typing-indicator span:nth-child(1){animation-delay:0s}.ai-typing-indicator span:nth-child(2){animation-delay:.2s}.ai-typing-indicator span:nth-child(3){animation-delay:.4s}@keyframes typing-bounce{0%,60%,to{transform:translateY(0)}30%{transform:translateY(-8px)}}.fade-in-up{animation:fadeInUp .4s ease-out forwards}.stat-card{background:#f9fafb;border:2px solid #e5e7eb;border-radius:1rem;padding:1rem}.stat-label{font-size:.875rem;color:#6b7280;font-weight:600;margin-bottom:.5rem}.stat-value{font-size:1.75rem;font-weight:700;color:var(--brand-color);font-family:Courier New,monospace}.detailed-results-section{margin-top:2rem;padding-top:2rem;border-top:2px solid #e5e7eb;text-align:left}.detailed-results{display:flex;flex-direction:column;gap:.75rem;margin-top:1rem}.result-item{background:#fff;border:2px solid #e5e7eb;border-radius:.75rem;padding:1rem;transition:all .3s ease}.result-item.correct{border-color:#10b981;background:linear-gradient(135deg,#f0fdf4,#dcfce7)}.result-item.incorrect{border-color:#ef4444;background:linear-gradient(135deg,#fef2f2,#fee2e2)}.result-item-header{display:flex;justify-content:space-between;align-items:center;gap:1rem}.result-q-number{font-weight:700;font-size:var(--font-base);color:var(--gray-900)}.result-status{font-weight:600;font-size:var(--font-sm)}.result-item.correct .result-status{color:#047857}.result-item.incorrect .result-status{color:#dc2626}.result-time{font-size:var(--font-sm);color:var(--gray-500);font-family:Courier New,monospace}.result-answer-comparison{margin-top:var(--space-md);display:flex;gap:var(--space-lg);font-size:var(--font-sm)}.your-answer{color:#dc2626;font-weight:600}.skipped-answer{color:#6b7280;font-weight:600;font-style:italic}.correct-answer{color:#047857;font-weight:600}.user-type-toggle{display:flex;gap:.5rem;background:#fff;padding:.375rem;border-radius:.75rem;border:2px solid #e5e7eb}.toggle-btn{padding:.625rem 1.25rem;border-radius:.5rem;font-weight:600;font-size:.9375rem;background:transparent;color:#6b7280;border:none;cursor:pointer;transition:all .3s ease}.toggle-btn:hover{color:#1a1a1a}.toggle-btn.active{background:var(--brand-color);color:#1a1a1a;box-shadow:0 2px 8px #ffc02e4d}.subject-card{padding:var(--space-xl);display:flex;flex-direction:column;gap:var(--space-xl);transition:all .3s ease;min-height:100%;min-width:0}.subject-header{display:flex;flex-direction:column;align-items:center;text-align:center;gap:var(--space-md);padding-bottom:var(--space-lg);border-bottom:2px solid var(--gray-100)}.subject-header-horizontal{display:flex;flex-direction:row;align-items:center;gap:var(--space-lg);padding-bottom:var(--space-lg);border-bottom:2px solid var(--gray-100)}.subject-icon{font-size:2.5rem}.subject-icon-img{width:3rem;height:3rem;-o-object-fit:contain;object-fit:contain}.subject-name{font-size:var(--font-xl);font-weight:700;color:var(--gray-900);margin:0;line-height:1.2}.subject-body{flex:1;display:flex;flex-direction:column;gap:var(--space-lg)}.current-chapter{flex:1}.chapter-label{font-size:var(--font-xs);color:var(--gray-500);font-weight:600;text-transform:uppercase;letter-spacing:.05em;margin-bottom:var(--space-xs)}.chapter-name{font-size:var(--font-lg);font-weight:700;color:var(--gray-900);margin-bottom:var(--space-xs)}.chapter-status{font-size:var(--font-sm);color:var(--gray-400)}.progress-section{margin-top:auto}.progress-label{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--space-sm);font-size:var(--font-sm);font-weight:600;color:var(--gray-600)}.progress-percent{color:var(--brand-color);font-weight:700}.subject-actions{display:flex;gap:var(--space-sm);margin-top:auto}.btn-sm{padding:var(--space-sm) var(--space-lg);font-size:var(--font-sm);font-weight:600;border-radius:var(--radius-md);text-align:center;text-decoration:none;transition:all var(--transition-normal)}.bite-carousel-container{position:relative;margin:0 -1.5rem;padding:0 1.5rem;overflow:visible}.bite-carousel{display:flex;gap:var(--space-lg);overflow-x:auto;overflow-y:visible;scroll-behavior:smooth;scroll-snap-type:x mandatory;padding:var(--space-sm) 0 var(--space-md) 0;margin-top:calc(-1 * var(--space-sm));-webkit-overflow-scrolling:touch}.bite-carousel::-webkit-scrollbar{height:6px}.bite-carousel::-webkit-scrollbar-track{background:var(--gray-100);border-radius:var(--radius-md)}.bite-carousel::-webkit-scrollbar-thumb{background:var(--brand-color);border-radius:var(--radius-md)}.bite-carousel::-webkit-scrollbar-thumb:hover{background:var(--brand-hover)}.bite-card-compact{flex:0 0 300px;min-height:240px;scroll-snap-align:start;padding:var(--space-xl) var(--space-lg);position:relative;transition:all var(--transition-normal);cursor:pointer;display:flex;flex-direction:column}.bite-card-compact:hover{transform:translateY(-6px);box-shadow:0 12px 24px #00000026}.bite-header-compact{display:flex;gap:var(--space-md);align-items:flex-start;justify-content:space-between;min-height:60px;margin-bottom:auto}.bite-info-compact{flex:1;min-width:0;display:flex;flex-direction:column;align-items:flex-start;gap:6px}.bite-subject-icon{width:3rem;height:3rem;background:linear-gradient(135deg,var(--brand-color) 0%,#E6AD29 100%);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.5rem;box-shadow:0 2px 8px #ffc02e40;flex-shrink:0}.bite-subject-icon.generic{background:linear-gradient(135deg,var(--gray-200) 0%,var(--gray-300) 100%);box-shadow:0 2px 8px #00000014}.bite-title-compact{font-size:var(--font-base);font-weight:700;color:var(--gray-900);line-height:1.4;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;width:100%}.bite-tags-row{display:flex;gap:var(--space-sm);align-items:center;flex-wrap:wrap;min-height:32px;margin-bottom:var(--space-sm)}.bite-tag-subject{padding:5px 10px;border-radius:var(--radius-sm);font-size:11px;font-weight:700;text-transform:capitalize;letter-spacing:.02em;background:var(--gray-100);color:var(--gray-700);border:1px solid var(--gray-300)}.bite-tag-type{padding:5px 10px;border-radius:var(--radius-sm);font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.03em;line-height:1.2}.bite-tag-type.revision{background:linear-gradient(135deg,#e9d5ff,#d8b4fe);color:#6b21a8}.bite-tag-type.memory{background:linear-gradient(135deg,#dbeafe,#bfdbfe);color:#1e40af}.bite-tag-type.bonus{background:linear-gradient(135deg,#fed7aa,#fdba74);color:#9a3412}.bite-tag-time{font-size:12px;color:var(--gray-500);font-weight:500;white-space:nowrap;line-height:1}.bite-tag-difficulty{padding:5px 10px;border-radius:var(--radius-sm);font-size:11px;font-weight:700;text-transform:capitalize;line-height:1.2}.bite-tag-difficulty.easy{background:#d1fae5;color:#065f46}.bite-tag-difficulty.medium{background:#fef3c7;color:#92400e}.bite-tag-difficulty.hard{background:#fecaca;color:#991b1b}.btn-bite-compact{width:100%;padding:12px var(--space-lg);background:var(--brand-color);color:var(--gray-900);border:2px solid var(--gray-900);border-radius:var(--radius-md);font-size:var(--font-sm);font-weight:700;cursor:pointer;transition:all var(--transition-fast);white-space:nowrap;min-height:44px}.btn-bite-compact:hover{background:var(--brand-hover);transform:translateY(-1px);box-shadow:0 4px 8px #00000026}.btn-bite-compact:active{transform:translateY(0)}.learning-bite-card{display:flex;flex-direction:column;position:relative;transition:all var(--transition-normal)}.learning-bite-card:hover{transform:translateY(-4px);box-shadow:0 8px 24px #00000014}.bite-badge{position:absolute;top:var(--space-lg);right:var(--space-lg);padding:var(--space-xs) var(--space-md);border-radius:var(--radius-md);font-size:var(--font-xs);font-weight:700;text-transform:uppercase;letter-spacing:.05em}.bite-badge.revision{background:linear-gradient(135deg,#e9d5ff,#d8b4fe);color:#6b21a8}.bite-badge.memory{background:linear-gradient(135deg,#dbeafe,#bfdbfe);color:#1e40af}.bite-badge.bonus{background:linear-gradient(135deg,#fed7aa,#fdba74);color:#9a3412}.bite-icon{font-size:3rem;margin-bottom:var(--space-md);margin-top:var(--space-lg)}.bite-title{font-size:var(--font-xl);font-weight:700;color:var(--gray-900);margin-bottom:var(--space-sm);line-height:1.3}.bite-subject{font-size:var(--font-sm);color:var(--gray-500);font-weight:600;margin-bottom:var(--space-lg)}.bite-content{flex:1;margin-bottom:var(--space-lg)}.bite-summary{margin-bottom:.75rem}.bite-summary p{font-size:.9375rem;color:#4b5563;line-height:1.5}.bite-includes{background:#f9fafb;border-radius:.5rem;padding:.75rem;display:flex;flex-direction:column;gap:.5rem}.bite-include-item{font-size:.875rem;color:#374151;font-weight:500}.bite-meta{display:flex;gap:var(--space-md);align-items:center;margin-bottom:var(--space-sm)}.bite-duration{font-size:var(--font-sm);color:var(--gray-500);font-weight:600}.bite-difficulty{padding:var(--space-xs) var(--space-sm);border-radius:var(--radius-sm);font-size:var(--font-xs);font-weight:700}.bite-difficulty.easy{background:#d1fae5;color:#065f46}.bite-difficulty.medium{background:#fef3c7;color:#92400e}.bite-difficulty.hard{background:#fecaca;color:#991b1b}.bite-reason{display:flex;align-items:center;gap:.5rem;background:linear-gradient(135deg,#ffc02e1a,#ffc02e0d);border:1px solid rgba(255,192,46,.3);border-radius:.5rem;padding:.625rem .875rem;margin-top:.75rem}.reason-icon{font-size:1rem}.reason-text{font-size:.8125rem;color:#78350f;font-weight:600}.activity-timeline{display:flex;flex-direction:column;gap:var(--space-lg)}.activity-list{display:flex;flex-direction:column;gap:var(--space-md);position:relative}.activity-list:before{content:"";position:absolute;left:1.75rem;top:0;bottom:0;width:2px;background:linear-gradient(180deg,var(--brand-color) 0%,var(--gray-200) 100%);opacity:.3}.activity-row{display:grid;grid-template-columns:auto 1fr auto auto;align-items:start;gap:var(--space-lg);padding:var(--space-xl);background:#fff;border-radius:var(--radius-lg);transition:all var(--transition-normal);position:relative;min-height:80px;box-shadow:0 1px 3px #0000000f;border-left:3px solid transparent}.activity-row:hover{transform:translate(4px);box-shadow:0 4px 12px #0000001a;border-left-color:var(--brand-color)}.activity-row.upcoming{background:linear-gradient(135deg,#fffbeb,#fffef5);border-left-color:var(--brand-color);box-shadow:0 2px 8px #ffc02e26}.activity-icon-circle-sm{width:3.5rem;height:3.5rem;background:linear-gradient(135deg,var(--brand-color) 0%,#E6AD29 100%);border-radius:50%;display:flex;align-items:center;justify-content:center;flex-shrink:0;box-shadow:0 4px 12px #ffc02e4d;transition:all var(--transition-fast);align-self:center;position:relative;z-index:1}.activity-row:hover .activity-icon-circle-sm{transform:scale(1.08);box-shadow:0 6px 20px #ffc02e80}.activity-emoji-sm{font-size:1.5rem}.activity-main{flex:1;min-width:0;display:flex;flex-direction:column;gap:8px;align-self:center}.activity-row-header{display:flex;flex-direction:column;gap:4px}.activity-row-title{font-size:1.125rem;font-weight:700;color:var(--gray-900);line-height:1.4}.activity-row-meta{display:flex;flex-wrap:wrap;gap:10px;align-items:center}.activity-type-badge{background:linear-gradient(135deg,var(--gray-100) 0%,var(--gray-50) 100%);padding:4px 10px;border-radius:var(--radius-sm);font-size:10px;font-weight:700;text-transform:uppercase;letter-spacing:.05em;color:var(--gray-600);border:1px solid var(--gray-200)}.activity-type-badge.upcoming{background:linear-gradient(135deg,#fed7aa,#fdba74);color:#9a3412;border-color:#fb923c}.activity-stat-sm{font-size:12px;font-weight:600;color:var(--gray-500);white-space:nowrap;display:inline-flex;align-items:center;gap:4px}.activity-stat-sm.score-excellent{color:#047857;font-weight:700;background:linear-gradient(135deg,#d1fae5,#a7f3d0);padding:4px 10px;border-radius:var(--radius-sm)}.activity-stat-sm.bookmarked{color:#92400e;font-weight:700}.activity-stat-sm.upcoming-badge{background:linear-gradient(135deg,#fed7aa,#fdba74);color:#9a3412;padding:4px 10px;border-radius:var(--radius-sm);font-weight:700;border:1px solid #fb923c}.activity-row-time{font-size:13px;color:var(--gray-400);font-weight:600;white-space:nowrap;padding:6px 12px;background:var(--gray-50);border-radius:var(--radius-md);border:1px solid var(--gray-200);align-self:center;display:flex;align-items:center;height:-moz-fit-content;height:fit-content}.activity-row-time.upcoming{color:#c2410c;font-weight:700;background:linear-gradient(135deg,#fed7aa,#fecaca);border-color:#fb923c}.activity-action-btn{padding:10px 20px;background:linear-gradient(135deg,var(--brand-color) 0%,#E6AD29 100%);color:var(--gray-900);border:2px solid var(--gray-900);border-radius:var(--radius-md);font-size:var(--font-sm);font-weight:700;cursor:pointer;transition:all var(--transition-fast);white-space:nowrap;flex-shrink:0;box-shadow:0 2px 6px #0000001a;align-self:center;display:flex;align-items:center;justify-content:center;height:-moz-fit-content;height:fit-content;min-width:140px}.activity-action-btn:hover{background:linear-gradient(135deg,#E6AD29 0%,var(--brand-color) 100%);transform:translateY(-2px);box-shadow:0 4px 12px #ffc02e66}@media (max-width: 768px){.activity-list:before{left:1.25rem}.activity-row{grid-template-columns:auto 1fr;gap:var(--space-md);padding:var(--space-lg)}.activity-row:hover{transform:translate(2px)}.activity-main{grid-column:span 2}.activity-row-time{grid-column:1;justify-self:start}.activity-action-btn{grid-column:2;justify-self:end;width:auto;min-width:120px}.activity-icon-circle-sm{width:2.5rem;height:2.5rem}.activity-emoji-sm{font-size:1.25rem}}.btn-link{background:none;border:none;color:var(--brand-color);font-weight:600;font-size:.9375rem;cursor:pointer;padding:0;transition:all .3s ease}.btn-link:hover{text-decoration:underline;color:#e6ad29}.welcome-section{overflow:hidden}.welcome-icon{font-size:4rem;margin-bottom:1rem;animation:bounceIn .8s ease-out}.welcome-steps{display:flex;justify-content:center;align-items:center;gap:1rem;flex-wrap:wrap}.step-item{display:flex;flex-direction:column;align-items:center;gap:.5rem}.step-number{width:3rem;height:3rem;background:var(--brand-color);color:#1a1a1a;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.5rem;font-weight:700;box-shadow:0 4px 12px #ffc02e66}.step-text{font-size:.9375rem;font-weight:600;color:#374151;text-align:center}.step-arrow{font-size:2rem;color:var(--brand-color);font-weight:700}.subject-card-new{text-align:center;transition:all var(--transition-normal);padding:var(--space-xl)}.subject-card-new:hover{transform:translateY(-4px);box-shadow:0 8px 24px #00000014}.subject-icon-large{font-size:4rem;margin-bottom:1rem}.subject-icon-img-large{width:5rem;height:5rem;-o-object-fit:contain;object-fit:contain;margin:0 auto 1rem}.subject-name-large{font-size:var(--font-2xl);font-weight:700;color:var(--gray-900);margin-bottom:var(--space-sm)}.subject-chapters{font-size:var(--font-sm);color:var(--gray-500);font-weight:500;margin-bottom:var(--space-md)}.how-it-works-icon{font-size:3rem;text-align:center;margin-bottom:1rem}.subject-icon-homepage{width:4rem;height:4rem;-o-object-fit:contain;object-fit:contain}.subject-icon-page{width:5rem;height:5rem;-o-object-fit:contain;object-fit:contain}.beginner-hero{position:relative;overflow:hidden}.celebration-icon{font-size:4rem;animation:bounceIn .8s ease-out}.achievement-badges{display:flex;gap:1rem;flex-wrap:wrap}.achievement-badge{display:flex;align-items:center;gap:.5rem;background:#fff;padding:.625rem 1rem;border-radius:.75rem;border:2px solid var(--brand-color);box-shadow:0 2px 8px #ffc02e33}.badge-icon{font-size:1.25rem}.badge-text{font-size:.9375rem;font-weight:600;color:#1a1a1a}.beginner-subject-card{background:linear-gradient(135deg,#ffc02e0d,#fff);padding:var(--space-2xl)}.beginner-progress{background:var(--gray-50);border-radius:var(--radius-xl);padding:var(--space-xl)}.chapter-name-large{font-size:var(--font-2xl);font-weight:700;color:var(--gray-900);margin-bottom:var(--space-sm)}.progress-detailed{margin-top:1rem}.progress-stats{display:flex;gap:2rem;margin-bottom:1rem}.stat{text-align:center}.stat-value{font-size:1.75rem;font-weight:700;color:var(--brand-color);margin-bottom:.25rem}.stat-label{font-size:.875rem;color:#6b7280;font-weight:600}.progress-bar-large{height:10px;background:#e5e7eb;border-radius:5px;overflow:hidden}.beginner-actions{margin-top:1.5rem}.learning-path{display:flex;flex-direction:column;gap:1rem}.path-step{display:flex;gap:1rem;padding:1rem;border-radius:.75rem;transition:all .3s ease}.path-step.completed{background:linear-gradient(135deg,#d1fae5,#ecfdf5);border:2px solid #10b981}.path-step.current{background:linear-gradient(135deg,#fef3c7,#fef9e7);border:2px solid var(--brand-color);box-shadow:0 4px 12px #ffc02e4d}.path-step.upcoming{background:#f9fafb;border:2px solid #e5e7eb}.path-step-icon{width:2.5rem;height:2.5rem;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:1.125rem;flex-shrink:0}.path-step.completed .path-step-icon{background:#10b981;color:#fff}.path-step.current .path-step-icon{background:var(--brand-color);color:#1a1a1a;animation:pulse 2s infinite}.path-step.upcoming .path-step-icon{background:#d1d5db;color:#6b7280}.path-step-content{flex:1}.path-step-title{font-size:1rem;font-weight:700;color:#1a1a1a;margin-bottom:.25rem}.path-step-desc{font-size:.875rem;color:#6b7280}.empty-activity{text-align:center}.tip-card{transition:all .3s ease}.tip-card:hover{transform:translateY(-4px)}.tip-icon{font-size:2.5rem;margin-bottom:1rem}.tip-title{font-size:1.125rem;font-weight:700;color:#1a1a1a;margin-bottom:.5rem}.tip-desc{font-size:.9375rem;color:#4b5563;line-height:1.6}.explore-subject-card{text-align:center;transition:all var(--transition-normal);padding:var(--space-xl)}.explore-subject-card:hover{transform:translateY(-4px);box-shadow:0 8px 24px #00000014}.engaged-hero{position:relative}.engaged-stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1.5rem}.engaged-stat-card{background:linear-gradient(135deg,#f9fafb,#fff);border:2px solid #e5e7eb;border-radius:1rem;padding:1.25rem;text-align:center;transition:all .3s ease}.engaged-stat-card:hover{border-color:var(--brand-color);transform:translateY(-2px);box-shadow:0 4px 12px #0000001a}.engaged-stat-icon{font-size:2rem;margin-bottom:.5rem}.engaged-stat-value{font-size:1.875rem;font-weight:700;color:#1a1a1a;margin-bottom:.25rem}.engaged-stat-label{font-size:.875rem;color:#6b7280;font-weight:500}.achievement-milestone{background:linear-gradient(135deg,var(--brand-color) 0%,#ffb800 100%);border-radius:1rem;padding:1.5rem;text-align:center;box-shadow:0 4px 16px #ffc02e4d}.milestone-icon{font-size:3rem;margin-bottom:.5rem}.milestone-text{font-size:1rem;font-weight:700;color:#1a1a1a}.engaged-subject-card{padding:var(--space-xl);transition:all var(--transition-normal)}.engaged-subject-card:hover{transform:translateY(-4px);box-shadow:0 8px 24px #0000001f}.recommendation-card{position:relative;transition:all var(--transition-normal)}.recommendation-card:hover{transform:translateY(-4px);box-shadow:0 8px 24px #0000001f}.rec-badge{position:absolute;top:var(--space-lg);right:var(--space-lg);padding:var(--space-xs) var(--space-sm);border-radius:var(--radius-md);font-size:var(--font-xs);font-weight:700;text-transform:uppercase;letter-spacing:.05em}.rec-badge.focus{background:linear-gradient(135deg,#fed7aa,#fdba74);color:#9a3412}.rec-badge.quick{background:linear-gradient(135deg,#d1fae5,#a7f3d0);color:#065f46}.rec-badge.explore{background:linear-gradient(135deg,#e9d5ff,#d8b4fe);color:#6b21a8}.rec-icon{font-size:3rem;margin-bottom:var(--space-md)}.rec-title{font-size:var(--font-xl);font-weight:700;color:var(--gray-900);margin-bottom:var(--space-sm)}.rec-desc{font-size:var(--font-sm);color:var(--gray-600);line-height:1.6;margin-bottom:var(--space-lg)}.rec-meta{display:flex;gap:var(--space-md);font-size:var(--font-xs);color:var(--gray-500);font-weight:600;margin-bottom:var(--space-md)}.status-badge{display:inline-block;padding:var(--space-xs) var(--space-md);border-radius:var(--radius-md);font-size:var(--font-xs);font-weight:700;text-transform:uppercase;letter-spacing:.05em}.status-badge.completed{background:#d1fae5;color:#065f46}.status-badge.in-progress{background:#fef3c7;color:#92400e}.chapter-meta{display:flex;gap:var(--space-lg);font-size:var(--font-sm);color:var(--gray-500);margin-top:var(--space-sm);flex-wrap:wrap}.subject-progress{margin-top:var(--space-lg)}.subject-progress .progress-bar-container{height:8px;background:var(--gray-200);border-radius:var(--radius-sm);overflow:hidden;margin-bottom:var(--space-sm)}.subject-progress .progress-bar-fill{height:100%;border-radius:var(--radius-sm);transition:width .5s ease}.progress-bar-fill.green{background:linear-gradient(90deg,#10b981,#34d399)}.progress-bar-fill.blue{background:linear-gradient(90deg,#3b82f6,#60a5fa)}.progress-info{display:flex;justify-content:space-between;font-size:var(--font-sm);color:var(--gray-500)}.subject-performance{margin-top:var(--space-lg);padding-top:var(--space-lg);border-top:1px solid var(--gray-200);display:flex;justify-content:space-between;gap:var(--space-lg)}.perf-item{display:flex;flex-direction:column;gap:var(--space-xs);flex:1}.perf-label{font-size:var(--font-xs);color:var(--gray-500);font-weight:600}.perf-value{font-size:var(--font-base);font-weight:700;color:var(--gray-900)}.perf-value.good{color:#10b981}.perf-value.average{color:#f59e0b}.subject-actions{display:flex;gap:.75rem;margin-top:1.5rem}.subject-actions .btn-primary,.subject-actions .btn-secondary{flex:1;text-align:center}.next-step-card{transition:all .3s ease}.next-step-card:hover{transform:translateY(-4px);box-shadow:0 8px 24px #0000001f}.step-badge{display:inline-block;padding:.375rem .875rem;border-radius:.5rem;font-size:.8125rem;font-weight:600;margin-bottom:1rem}.step-badge.primary{background:#dbeafe;color:#1e40af}.step-badge.focus{background:#fed7aa;color:#9a3412}.step-badge.quick,.step-badge.test,.step-badge.learn{background:#d1fae5;color:#065f46}.step-badge.explore{background:#e9d5ff;color:#6b21a8}.step-icon{font-size:2.5rem;margin-bottom:1rem}.step-title{font-size:1.25rem;font-weight:700;color:#1a1a1a;margin-bottom:.75rem}.step-desc{font-size:.9375rem;color:#4b5563;line-height:1.6;margin-bottom:1rem}.step-meta{display:flex;gap:1rem;font-size:.8125rem;color:#6b7280;font-weight:500}.insight-card{transition:all .3s ease}.insight-card:hover{transform:translateY(-2px)}.insight-header{display:flex;align-items:center;gap:.75rem;margin-bottom:1.5rem}.insight-icon{font-size:2rem}.insight-title{font-size:1.5rem;font-weight:700;color:#1a1a1a}.insight-content{display:flex;flex-direction:column;gap:1.25rem;margin-bottom:1.5rem}.strength-item,.weakness-item{display:flex;flex-direction:column;gap:.5rem}.strength-topic,.weakness-topic{font-size:.9375rem;font-weight:600;color:#1a1a1a}.strength-bar-wrapper,.weakness-bar-wrapper{display:flex;align-items:center;gap:.75rem}.strength-bar,.weakness-bar{flex:1;height:8px;border-radius:4px;transition:width .5s ease}.strength-bar{background:linear-gradient(90deg,#10b981,#34d399)}.weakness-bar{background:linear-gradient(90deg,#f59e0b,#fbbf24)}.strength-score,.weakness-score{font-size:.875rem;font-weight:700;min-width:3rem;text-align:right}.strength-score{color:#10b981}.weakness-score{color:#f59e0b}.weakness-action{align-self:flex-start;padding:.375rem .875rem;background:#fff;border:2px solid var(--brand-color);border-radius:.5rem;font-size:.8125rem;font-weight:600;color:#1a1a1a;cursor:pointer;transition:all .2s ease}.weakness-action:hover{background:var(--brand-color)}.insight-footer{font-size:.875rem;color:#6b7280;font-style:italic;text-align:center;padding-top:1rem;border-top:1px solid #e5e7eb}.auth-branding{animation:fadeInLeft .6s ease-out}.feature-item{animation:fadeInLeft .8s ease-out;animation-fill-mode:both;transition:all var(--transition-normal)}.feature-item:nth-child(1){animation-delay:.1s}.feature-item:nth-child(2){animation-delay:.2s}.feature-item:nth-child(3){animation-delay:.3s}.feature-item:nth-child(4){animation-delay:.4s}.feature-item:hover{transform:translate(8px);box-shadow:0 4px 12px #00000014}.feature-icon{font-size:var(--font-3xl);flex-shrink:0}.auth-card{animation:fadeInRight .6s ease-out;max-width:520px;margin:0 auto}.auth-header h2{background:linear-gradient(135deg,var(--gray-900) 0%,var(--gray-600) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.form-group{margin-bottom:0}.form-label{display:block;font-size:var(--font-sm);font-weight:600;color:var(--gray-700);margin-bottom:var(--space-sm)}.auth-card .input-field{transition:all var(--transition-fast);font-size:var(--font-base);padding:var(--space-md) var(--space-lg)}.auth-card .input-field:focus{border-color:var(--brand-color);box-shadow:0 0 0 3px #ffc02e26;transform:translateY(-1px)}.auth-card .input-field:hover{border-color:var(--gray-400)}.auth-divider{position:relative;text-align:center;margin:var(--space-xl) 0}.auth-divider:before{content:"";position:absolute;top:50%;left:0;right:0;height:1px;background:var(--gray-200)}.auth-divider span{position:relative;background:#fff;padding:0 var(--space-lg);font-size:var(--font-sm);color:var(--gray-400);font-weight:500}.social-login-btn{display:flex;align-items:center;justify-content:center;gap:var(--space-sm);padding:var(--space-md) var(--space-lg);border:2px solid var(--gray-300);border-radius:var(--radius-md);background:#fff;font-size:var(--font-sm);font-weight:600;color:var(--gray-700);cursor:pointer;transition:all var(--transition-fast)}.social-login-btn:hover{border-color:var(--brand-color);background:var(--gray-50);transform:translateY(-2px);box-shadow:0 4px 12px #00000014}.social-login-btn:active{transform:translateY(0)}.otp-input-group{display:flex;gap:var(--space-lg);justify-content:center}.otp-input{width:4rem;height:4rem;text-align:center;font-size:var(--font-2xl);font-weight:700;border:2px solid var(--gray-300);border-radius:var(--radius-lg);transition:all var(--transition-fast);background:var(--gray-50)}.otp-input:focus{border-color:var(--brand-color);background:#fff;box-shadow:0 0 0 3px #ffc02e26;outline:none;transform:scale(1.05)}.otp-input:not(:-moz-placeholder){border-color:var(--brand-color);background:#fef3c7;color:var(--gray-900)}.otp-input:not(:placeholder-shown){border-color:var(--brand-color);background:#fef3c7;color:var(--gray-900)}.otp-input::-moz-selection{background:var(--brand-color);color:var(--gray-900)}.otp-input::selection{background:var(--brand-color);color:var(--gray-900)}@keyframes fadeInLeft{0%{opacity:0;transform:translate(-30px)}to{opacity:1;transform:translate(0)}}@keyframes fadeInRight{0%{opacity:0;transform:translate(30px)}to{opacity:1;transform:translate(0)}}@media (max-width: 768px){.slide-title{font-size:1.75rem}.comparison-row{grid-template-columns:1fr}.slide-navigation{flex-direction:column;gap:1rem}.nav-btn{width:100%}.solution-sidekick{width:100%;right:-100%}.solution-content{padding:var(--space-lg)}.solution-step{padding:var(--space-md)}.test-timers{flex-direction:column;gap:.5rem}.question-text{font-size:1.25rem}.test-header{margin-bottom:1rem}.option-label{padding:.875rem 1rem}.user-type-toggle{width:100%}.toggle-btn{flex:1;padding:.5rem .75rem;font-size:.8125rem}.achievement-badges{flex-direction:column}.progress-stats{gap:1rem}.engaged-stats-grid{grid-template-columns:repeat(2,1fr);gap:1rem}.achievement-milestone{margin-top:1rem}.subject-actions{flex-direction:column}.subject-actions .btn-primary,.subject-actions .btn-secondary{width:100%}.otp-input{width:3rem;height:3rem;font-size:1.25rem}.otp-input-group{gap:.5rem}.feature-icon{font-size:2rem}.auth-header h2{font-size:1.875rem}.bite-carousel-container{margin:0 -1rem;padding:0 1rem}.bite-card-compact{flex:0 0 240px;min-height:220px;padding:var(--space-lg) var(--space-md);gap:var(--space-md)}.bite-subject-icon{width:2.25rem;height:2.25rem;font-size:1.125rem}.bite-title-compact{font-size:.875rem}.bite-tags-row{gap:6px}.bite-tag-subject,.bite-tag-type,.bite-tag-difficulty{font-size:10px;padding:4px 8px}.bite-tag-time{font-size:11px}.btn-bite-compact{padding:6px var(--space-sm);font-size:11px}}.text-balance{text-wrap:balance}.transition-colors{transition:color .2s ease}.max-h-\[90vh\]{max-height:90vh}.overflow-y-auto{overflow-y:auto}.cursor-not-allowed{cursor:not-allowed}.opacity-50{opacity:.5}.text-sm{font-size:.875rem;line-height:1.25rem}.text-base{font-size:1rem;line-height:1.5rem}.text-lg{font-size:1.125rem;line-height:1.75rem}.text-xl{font-size:1.25rem;line-height:1.75rem}.text-2xl{font-size:1.5rem;line-height:2rem}.mt-2{margin-top:.5rem}.mt-4{margin-top:1rem}.mt-6{margin-top:1.5rem}.mb-2{margin-bottom:.5rem}.mb-3{margin-bottom:.75rem}.mb-4{margin-bottom:1rem}.space-y-2>*+*{margin-top:.5rem}.space-y-4>*+*{margin-top:1rem}.flex{display:flex}.flex-col{flex-direction:column}.flex-1{flex:1 1 0%}.items-center{align-items:center}.gap-2{gap:.5rem}.gap-3{gap:.75rem}.gap-4{gap:1rem}.brightness-0{filter:brightness(0)}.invert{filter:invert(1)}.h-8{height:2rem}.mb-6{margin-bottom:1.5rem}.grid-background{background-color:#fafafa;background-image:linear-gradient(rgba(255,192,46,.08) 1.5px,transparent 1.5px),linear-gradient(90deg,rgba(255,192,46,.08) 1.5px,transparent 1.5px),linear-gradient(rgba(255,192,46,.04) .5px,transparent .5px),linear-gradient(90deg,rgba(255,192,46,.04) .5px,transparent .5px);background-size:100px 100px,100px 100px,20px 20px,20px 20px;background-position:-1.5px -1.5px,-1.5px -1.5px,-.5px -.5px,-.5px -.5px;position:relative}.grid-background:before{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background:radial-gradient(ellipse at 50% 40%,rgba(255,192,46,.08) 0%,rgba(255,192,46,.03) 30%,transparent 65%);pointer-events:none}.grid-background:after{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background:linear-gradient(180deg,#fafafa00,#fafafa4d);pointer-events:none}.grid-background-overlay{position:relative;z-index:1}.page-container{max-width:1280px;margin:0 auto}.section-padding{padding:4rem 1.5rem}.grid-responsive{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:1.5rem}.loading{opacity:.6;pointer-events:none}.status-completed{color:#059669}.status-in-progress{color:#2563eb}.status-pending{color:#6b7280}.progress-bar{height:8px;background-color:#e5e7eb;border-radius:4px;overflow:hidden}.progress-fill{height:100%;background-color:var(--brand-color);transition:width .3s ease}.spinner{border:3px solid #f3f3f3;border-top:3px solid var(--brand-color);border-radius:50%;width:40px;height:40px;animation:spin 1s linear infinite}@media (max-width: 768px){.test-layout{grid-template-columns:1fr;gap:var(--space-lg)}.test-sidebar{position:static;order:2}.test-main-area{order:1}.sidebar-chapter-title{font-size:var(--font-lg)}.questions-grid{grid-template-columns:repeat(5,1fr)}.solution-sidekick{right:-100%;width:100%}.ai-chat-header{padding:var(--space-md) var(--space-lg)}.ai-avatar{width:48px;height:48px}.ai-avatar-icon{width:48px;height:48px;font-size:20px}.ai-tutor-icon-img{padding:4px}.ai-tutor-avatar{width:32px;height:32px}.ai-tutor-avatar-img{padding:2px}.ai-assistant-name{font-size:var(--font-base)}.ai-status-text{font-size:.625rem}.ai-chat-content{padding:var(--space-lg)}.ai-question-card{padding:var(--space-md)}.ai-question-text{font-size:var(--font-base)}.ai-option-item{padding:var(--space-sm)}.ai-option-text{font-size:var(--font-xs)}.ai-message{max-width:90%;padding:var(--space-sm) var(--space-md);font-size:var(--font-xs)}.ai-recommend-grid{grid-template-columns:1fr;gap:var(--space-xs)}.ai-recommend-btn{flex-direction:row;justify-content:flex-start;padding:var(--space-sm) var(--space-md)}.ai-chat-footer{padding:var(--space-md) var(--space-lg)}.ai-doubt-input{padding:var(--space-sm) var(--space-md);font-size:var(--font-xs)}.ai-send-btn{width:40px;height:40px}.ai-suggestion-chip{padding:.375rem .625rem;font-size:.625rem}.ai-step-card{padding:var(--space-sm)}.ai-step-content{font-size:var(--font-xs)}.breadcrumb-nav-item{font-size:var(--font-sm);padding:var(--space-xs) var(--space-sm)}.breadcrumb-nav-item.active{font-size:var(--font-base)}#test-content{padding:var(--space-lg);max-height:calc(100vh - 150px)}.problem-statement{max-height:60vh}.action-buttons-row{flex-wrap:wrap}.feedback-inline{width:100%;justify-content:center;margin-bottom:var(--space-xs)}.btn-action-compact{flex:1;min-width:-moz-fit-content;min-width:fit-content}.toast-notification{top:80px;max-width:calc(100vw - 2rem);padding:var(--space-sm) var(--space-lg)}.toast-icon{font-size:var(--font-xl)}.toast-message{font-size:var(--font-xs)}}@media (min-width: 769px) and (max-width: 1024px){.test-layout{grid-template-columns:280px 1fr;gap:var(--space-xl)}.test-sidebar{padding:var(--space-lg)}.sidebar-chapter-title{font-size:var(--font-lg)}.questions-grid{grid-template-columns:repeat(4,1fr)}.solution-sidekick{width:420px;right:-420px}}@media (max-width: 480px){.breadcrumb-nav-item{font-size:.7rem;padding:var(--space-xs)}.breadcrumb-nav-separator{font-size:var(--font-base)}.questions-grid.questions-grid--quiz{grid-template-columns:repeat(4,minmax(0,1fr))!important}}@media (max-width: 360px){.questions-grid.questions-grid--quiz{grid-template-columns:repeat(3,minmax(0,1fr))!important}}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.loading-state{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:300px}.content-blocks{display:flex;flex-direction:column;gap:1.5rem}.content-block{padding:1rem;border-radius:var(--radius-lg);background:var(--gray-50)}.definition-box{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;padding:1.5rem;border-radius:var(--radius-xl);box-shadow:0 10px 25px #667eea4d;margin-bottom:1.5rem;transform:translateY(0);transition:transform var(--transition-normal),box-shadow var(--transition-normal)}.definition-box:hover{transform:translateY(-2px);box-shadow:0 15px 35px #667eea66}.definition-box h4{color:#fff;opacity:.95;font-size:var(--font-lg);margin-bottom:.75rem}.definition-box p{line-height:1.6}.formula-box{background:linear-gradient(135deg,#f093fb,#f5576c);color:#fff;padding:2rem;border-radius:var(--radius-xl);box-shadow:0 10px 25px #f093fb4d;margin-bottom:1.5rem;text-align:center}.formula-box h4{color:#fff;opacity:.95}.formula-display{margin:1.5rem 0;padding:1rem;background:#fff3;border-radius:var(--radius-lg);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.units{background:#ffffff26;padding:1rem;border-radius:var(--radius-md);margin-top:1rem}.type-card{background:#fff;padding:1.5rem;border-radius:var(--radius-xl);box-shadow:0 4px 15px #0000001a;transition:all var(--transition-normal);border:2px solid transparent}.type-card:hover{transform:translateY(-5px);box-shadow:0 10px 30px #00000026;border-color:var(--brand-color)}.type-icon{font-size:2.5rem;margin-bottom:1rem;display:flex;align-items:center;justify-content:center;height:70px}.example-block,.real-life-example{background:linear-gradient(135deg,#ffeaa7,#fdcb6e);padding:1.5rem;border-radius:var(--radius-xl);box-shadow:0 5px 20px #fdcb6e4d;margin-top:1.5rem}.example-block h4,.real-life-example h4{color:#2d3436}.visual-example{background:linear-gradient(135deg,#a29bfe,#6c5ce7);color:#fff;padding:1.5rem;border-radius:var(--radius-xl);box-shadow:0 5px 20px #6c5ce74d}.visual-example h4{color:#fff;opacity:.95}.example-box{background:#fff3;padding:1rem;border-radius:var(--radius-lg);margin-top:1rem;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.path-visual{font-size:1.5rem;text-align:center;padding:1rem;margin-bottom:1rem;font-family:monospace}.comparison-table{background:#fff;border-radius:var(--radius-xl);overflow:hidden;box-shadow:0 5px 20px #0000001a;margin-bottom:1.5rem}.comparison-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:1px;background:var(--gray-200)}.comparison-row.header{background:linear-gradient(135deg,#4facfe,#00f2fe)}.comparison-row.header .col{color:#fff;font-weight:700;background:transparent}.comparison-row .col{padding:1rem;background:#fff;display:flex;align-items:center;justify-content:center;text-align:center}.diff-card{background:#fff;padding:1rem;border-radius:var(--radius-lg);margin-bottom:1rem;box-shadow:0 2px 10px #00000014;border-left:4px solid var(--brand-color)}.problem-statement{background:linear-gradient(135deg,#fa709a,#fee140);color:#2d3436;padding:1.5rem;border-radius:var(--radius-xl);box-shadow:0 5px 20px #fa709a4d;margin-bottom:1.5rem}.problem-statement h4{color:#2d3436}.problem-text{font-size:var(--font-lg);font-weight:500;line-height:1.6}.solution{background:linear-gradient(135deg,#30cfd0,#330867);color:#fff;padding:1.5rem;border-radius:var(--radius-xl);box-shadow:0 5px 20px #30cfd04d}.solution h4{color:#fff;opacity:.95}.solution-steps .step{background:#ffffff26;padding:1rem;border-radius:var(--radius-lg);margin-bottom:1rem;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-left:4px solid rgba(255,255,255,.5)}.solution-steps .step strong{display:block;margin-bottom:.5rem;font-size:var(--font-lg)}.solution-steps .step .tip{background:#fff3;padding:.5rem 1rem;border-radius:var(--radius-md);margin-top:.5rem;font-size:var(--font-sm)}.answer-box{background:#ffffff40;padding:1rem;border-radius:var(--radius-lg);margin-top:1rem;font-size:var(--font-lg);text-align:center;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.important-note{background:linear-gradient(135deg,#ff6b6b,#ee5a6f);color:#fff;padding:1.5rem;border-radius:var(--radius-xl);box-shadow:0 5px 20px #ff6b6b4d;margin-top:1.5rem}.important-note h4{color:#fff;opacity:.95}.approach-tip{background:linear-gradient(135deg,#84fab0,#8fd3f4);color:#2d3436;padding:1.5rem;border-radius:var(--radius-xl);box-shadow:0 5px 20px #84fab04d;margin-top:1.5rem}.approach-tip h4{color:#2d3436}.approach-steps{list-style-position:inside;padding-left:0}.approach-steps li{padding:.5rem 0;border-bottom:1px solid rgba(0,0,0,.1)}.approach-steps li:last-child{border-bottom:none}.summary-card{background:#fff;padding:1.5rem;border-radius:var(--radius-xl);box-shadow:0 5px 20px #00000014;margin-bottom:1.5rem;border-top:4px solid var(--brand-color);transition:all var(--transition-normal)}.summary-card:hover{transform:translateY(-3px);box-shadow:0 10px 30px #0000001f}.summary-card h4{color:var(--gray-900);margin-bottom:1rem}.summary-card ul{list-style:none;padding:0}.summary-card ul li{padding:.5rem 0 .5rem 1.5rem;position:relative}.summary-card ul li:before{content:"✓";position:absolute;left:0;color:var(--brand-color);font-weight:700}.symbols-guide{background:linear-gradient(135deg,#d299c2,#fef9d7);padding:1.5rem;border-radius:var(--radius-xl);box-shadow:0 5px 20px #d299c24d;margin-top:1.5rem}.symbols-guide h4{color:#2d3436}.symbols p{padding:.5rem 0;font-size:var(--font-lg)}.symbols strong{color:#6c5ce7;font-size:var(--font-xl)}.equations{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:1rem;margin-top:1.5rem}.equation-card{background:#fff3;padding:1.5rem;border-radius:var(--radius-xl);text-align:center;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:2px solid rgba(255,255,255,.3);transition:all var(--transition-normal)}.equation-card:hover{transform:scale(1.05);border-color:#fff9}.equation-number{font-size:var(--font-lg);font-weight:700;margin-bottom:.5rem}.equation-formula{font-size:var(--font-2xl);font-weight:700;margin:1rem 0;font-family:Courier New,monospace}.equation-use{font-size:var(--font-sm);opacity:.9;margin-top:.5rem}.point-card{background:#fff;padding:1rem;border-radius:var(--radius-lg);box-shadow:0 2px 10px #0000000d;transition:all var(--transition-fast)}.point-card:hover{box-shadow:0 4px 15px #0000001a;transform:translate(5px)}@media (max-width: 768px){.equations,.comparison-row{grid-template-columns:1fr}.formula-box,.definition-box,.problem-statement,.solution{padding:1rem}.formula-display{font-size:var(--font-lg)}}.content-blocks>*{animation:fadeInUp .5s ease forwards;opacity:0}.content-blocks>*:nth-child(1){animation-delay:.1s}.content-blocks>*:nth-child(2){animation-delay:.2s}.content-blocks>*:nth-child(3){animation-delay:.3s}.content-blocks>*:nth-child(4){animation-delay:.4s}.content-blocks>*:nth-child(5){animation-delay:.5s}.content-blocks>*:nth-child(6){animation-delay:.6s}@keyframes fadeInUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}:root{--brand-yellow: #FFC02E;--brand-yellow-light: #FFD670;--brand-yellow-dark: #E6AD29;--white: #FFFFFF;--gray-50: #F9FAFB;--gray-100: #F3F4F6;--gray-200: #E5E7EB;--gray-300: #D1D5DB;--gray-400: #9CA3AF;--gray-500: #6B7280;--gray-600: #4B5563;--gray-700: #374151;--gray-800: #1F2937;--gray-900: #111827;--black: #000000}.study-container{display:flex;min-height:calc(100vh - 88px);background:var(--white);margin-top:88px}.study-sidebar{width:320px;background:var(--gray-50);border-right:1px solid var(--gray-200);overflow-y:auto;position:fixed;left:0;top:88px;bottom:0;z-index:100}.sidebar-header{padding:2rem 1.5rem 1rem;border-bottom:1px solid var(--gray-200);background:var(--white)}.chapter-title{font-size:1.5rem;font-weight:800;color:var(--gray-900);margin-bottom:.5rem}.chapter-meta{display:flex;align-items:center;gap:1rem;font-size:.875rem;color:var(--gray-600)}.progress-bar{height:4px;background:var(--gray-200);border-radius:2px;margin-top:1rem;overflow:hidden}.progress-fill{height:100%;background:var(--brand-yellow);border-radius:2px;transition:width .3s ease}.subtopics-list{padding:.5rem 0}.subtopic-item{padding:.65rem 1rem;cursor:pointer;font-size:.9rem;color:var(--gray-700);border-left:3px solid transparent;transition:background .15s ease,color .15s ease}.subtopic-item:hover{background:var(--gray-100);color:var(--gray-900)}.subtopic-item.active{background:var(--white);border-left-color:var(--brand-yellow);font-weight:600;color:var(--gray-900)}.subtopic-section{margin-bottom:.25rem}.subtopic-header{padding:.75rem 1rem;cursor:pointer;transition:all .2s;display:flex;align-items:center;justify-content:space-between;font-weight:600;font-size:.9rem;color:var(--gray-800);-webkit-user-select:none;-moz-user-select:none;user-select:none}.subtopic-header:hover{background:var(--gray-100)}.subtopic-header.active{background:var(--white);color:var(--gray-900)}.subtopic-header-left{display:flex;align-items:center;gap:.5rem}.subtopic-icon{width:20px;height:20px;border-radius:50%;border:2px solid var(--gray-300);display:flex;align-items:center;justify-content:center;font-size:.7rem;flex-shrink:0}.subtopic-header.completed .subtopic-icon{background:var(--brand-yellow);border-color:var(--brand-yellow);color:var(--white)}.subtopic-header.active .subtopic-icon{border-color:var(--brand-yellow)}.subtopic-expand{font-size:.7rem;color:var(--gray-400);transition:transform .2s}.subtopic-section.expanded .subtopic-expand{transform:rotate(90deg)}.slides-list{max-height:0;overflow:hidden;transition:max-height .3s ease;background:var(--gray-50)}.subtopic-section.expanded .slides-list{max-height:1000px}.slide-item{padding:.5rem 1rem .5rem 3rem;cursor:pointer;transition:all .2s;border-left:3px solid transparent;font-size:.85rem;color:var(--gray-600);position:relative}.slide-item:before{content:"•";position:absolute;left:2.25rem;color:var(--gray-400)}.slide-item:hover{background:var(--white);color:var(--gray-900);border-left-color:var(--brand-yellow)}.slide-item.active{background:var(--white);color:var(--gray-900);border-left-color:var(--brand-yellow);font-weight:600}.slide-item.active:before{content:"▸";color:var(--brand-yellow)}.slide-item.completed{color:var(--gray-500)}.slide-item.completed:before{content:"✓";color:var(--brand-yellow)}.study-content{margin-left:320px;flex:1;padding:2rem 3rem;max-width:1200px;min-width:0}.slide-container{width:100%;min-width:0}.slide-body{min-width:0;overflow-x:auto}.content-slide{background:var(--white);border-radius:12px;border:1px solid var(--gray-200);margin-bottom:2rem}.content-header{padding:1.5rem 2rem;border-bottom:1px solid var(--gray-200);display:flex;justify-content:space-between;align-items:center}.slide-tag{display:inline-block;padding:.25rem .75rem;background:var(--brand-yellow);color:var(--gray-900);font-size:.75rem;font-weight:700;border-radius:4px;text-transform:uppercase;letter-spacing:.5px}.slide-title-main{font-size:2rem;font-weight:700;color:var(--gray-900);margin:.75rem 0 0}.content-body{padding:2rem}.content-block{margin-bottom:2rem}.content-block:last-child{margin-bottom:0}.block-definition{background:var(--gray-50);border-left:4px solid var(--brand-yellow);padding:1.5rem;border-radius:8px}.block-definition .block-label{display:flex;align-items:center;gap:.5rem;font-size:.875rem;font-weight:700;color:var(--gray-700);text-transform:uppercase;letter-spacing:.5px;margin-bottom:.75rem}.block-definition .block-content{font-size:1.05rem;line-height:1.7;color:var(--gray-800)}.block-formula{background:var(--white);border:2px solid var(--brand-yellow);padding:1.5rem;border-radius:8px;text-align:center}.formula-main{font-size:1.75rem;font-weight:700;color:var(--gray-900);margin:1rem 0;font-family:Courier New,monospace}.formula-explanation{font-size:.95rem;color:var(--gray-600);margin-top:.75rem}.block-keypoints{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:1rem}.keypoint-card{background:var(--white);border:1px solid var(--gray-200);border-radius:8px;padding:1.25rem;transition:all .2s}.keypoint-card:hover{border-color:var(--brand-yellow);box-shadow:0 4px 12px #ffc02e1a}.keypoint-card .icon{width:40px;height:40px;background:var(--brand-yellow);border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:1.25rem;margin-bottom:.75rem}.keypoint-card h4{font-size:1rem;font-weight:700;color:var(--gray-900);margin-bottom:.5rem}.keypoint-card p{font-size:.9rem;color:var(--gray-600);line-height:1.6}.block-example{background:var(--white);border:1px solid var(--gray-200);border-radius:8px;overflow:hidden}.example-header{background:var(--gray-50);padding:1rem 1.5rem;border-bottom:1px solid var(--gray-200);font-weight:600;color:var(--gray-900)}.example-content{padding:1.5rem}.example-problem{font-size:1.05rem;font-weight:500;color:var(--gray-800);margin-bottom:1.5rem}.example-solution{background:var(--gray-50);border-radius:8px;padding:1.25rem}.solution-step{margin-bottom:1rem;padding-bottom:1rem;border-bottom:1px solid var(--gray-200)}.solution-step:last-child{margin-bottom:0;padding-bottom:0;border-bottom:none}.step-label{font-size:.875rem;font-weight:700;color:var(--brand-yellow);margin-bottom:.5rem}.step-content{font-size:.95rem;color:var(--gray-700);line-height:1.6}.solution-answer{background:var(--brand-yellow);color:var(--gray-900);padding:1rem;border-radius:6px;margin-top:1rem;font-weight:600;text-align:center}.block-comparison table{width:100%;border-collapse:collapse;border:1px solid var(--gray-200);border-radius:8px;overflow:hidden}.block-comparison thead{background:var(--gray-900);color:var(--white)}.block-comparison th{padding:1rem;text-align:left;font-weight:600;font-size:.9rem}.block-comparison td{padding:1rem;border-bottom:1px solid var(--gray-200);font-size:.95rem;color:var(--gray-700)}.block-comparison tbody tr:hover{background:var(--gray-50)}.block-comparison tbody tr:last-child td{border-bottom:none}.block-important{background:#fff9e6;border:2px solid var(--brand-yellow);border-radius:8px;padding:1.5rem;display:flex;gap:1rem}.block-important .icon{font-size:1.5rem;flex-shrink:0}.block-important .content{flex:1}.block-important .title{font-weight:700;color:var(--gray-900);margin-bottom:.5rem}.block-important .text{font-size:.95rem;color:var(--gray-700);line-height:1.6}.types-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1rem}.type-card-compact{background:var(--white);border:1px solid var(--gray-200);border-radius:8px;padding:1.25rem;text-align:center;transition:all .2s}.type-card-compact:hover{border-color:var(--brand-yellow);transform:translateY(-2px);box-shadow:0 4px 12px #00000014}.type-card-compact .icon{font-size:2rem;margin-bottom:.75rem}.type-card-compact .title{font-size:1rem;font-weight:600;color:var(--gray-900);margin-bottom:.5rem}.type-card-compact .description{font-size:.85rem;color:var(--gray-600);line-height:1.5}.quiz-container{background:var(--gray-50);border:1px solid var(--gray-200);border-radius:8px;padding:1.5rem}.quiz-question{font-size:1.05rem;font-weight:600;color:var(--gray-900);margin-bottom:1.25rem}.quiz-options{display:grid;gap:.75rem}.quiz-option{background:var(--white);border:2px solid var(--gray-200);border-radius:6px;padding:1rem;cursor:pointer;transition:all .2s;font-size:.95rem}.quiz-option:hover{border-color:var(--brand-yellow);background:#fffef8}.quiz-option.correct{border-color:#10b981;background:#ecfdf5;color:#065f46}.quiz-option.incorrect{border-color:#ef4444;background:#fef2f2;color:#991b1b}.slide-navigation{display:flex;justify-content:space-between;align-items:center;padding:1.5rem 2rem;border-top:1px solid var(--gray-200);background:var(--gray-50)}.nav-button{padding:.75rem 1.5rem;border-radius:6px;font-weight:600;font-size:.95rem;cursor:pointer;transition:all .2s;border:none}.nav-button-primary{background:var(--brand-yellow);color:var(--gray-900)}.nav-button-primary:hover{background:var(--brand-yellow-dark)}.nav-button-secondary{background:var(--white);color:var(--gray-700);border:1px solid var(--gray-300)}.nav-button-secondary:hover{background:var(--gray-50)}.nav-button:disabled{opacity:.5;cursor:not-allowed}.slide-progress{display:flex;gap:.5rem;align-items:center}.progress-dot{width:8px;height:8px;border-radius:50%;background:var(--gray-300);transition:all .2s}.progress-dot.active{background:var(--brand-yellow);width:24px;border-radius:4px}.progress-dot.completed{background:var(--gray-400)}@media (max-width: 1024px){.study-container{flex-direction:column;min-height:calc(100vh - 88px);margin-top:88px}.study-sidebar{position:relative;left:auto;top:auto;bottom:auto;width:100%;max-height:min(50vh,22rem);overflow-y:auto;border-right:none;border-bottom:1px solid var(--gray-200);flex-shrink:0}.study-content{margin-left:0;padding:1.25rem 1rem;max-width:none;width:100%;min-width:0}.sidebar-toggle{display:none}}@media (max-width: 768px){.study-content{padding:1rem}.slide-navigation{flex-wrap:wrap;gap:.75rem;justify-content:center;padding:1rem 1.25rem}.content-body{padding:1.5rem}.slide-title-main{font-size:1.5rem}.block-keypoints,.types-grid{grid-template-columns:1fr}}.content-body h1{font-size:2rem;font-weight:700;color:var(--gray-900);margin-bottom:1rem}.content-body h2{font-size:1.5rem;font-weight:700;color:var(--gray-900);margin-bottom:.75rem}.content-body h3{font-size:1.25rem;font-weight:600;color:var(--gray-900);margin-bottom:.5rem}.content-body h4{font-size:1.1rem;font-weight:600;color:var(--gray-900);margin-bottom:.5rem}.content-body p{font-size:1rem;line-height:1.7;color:var(--gray-700);margin-bottom:1rem}.content-body ul,.content-body ol{padding-left:1.5rem;margin-bottom:1rem}.content-body li{font-size:.95rem;line-height:1.7;color:var(--gray-700);margin-bottom:.5rem}.content-body strong{font-weight:600;color:var(--gray-900)}.content-body em{font-style:italic}.content-body code{background:var(--gray-100);padding:.125rem .375rem;border-radius:3px;font-family:Courier New,monospace;font-size:.9em}.loading-state{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:4rem 2rem}.spinner{width:40px;height:40px;border:4px solid var(--gray-200);border-top-color:var(--brand-yellow);border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.block-list ul{list-style:none;padding:0;background:var(--white);border:1px solid var(--gray-200);border-radius:8px;overflow:hidden}.block-list li{padding:1rem;border-bottom:1px solid var(--gray-200);color:var(--gray-700);transition:background .2s}.block-list li:last-child{border-bottom:none}.block-list li:hover{background:var(--gray-50)}.content-block p{line-height:1.7;color:var(--gray-700)}.text-center{text-align:center}.text-right{text-align:right}.mb-0{margin-bottom:0!important}.mb-1{margin-bottom:.5rem}.mb-2{margin-bottom:1rem}.mb-3{margin-bottom:1.5rem}.mt-2{margin-top:1rem}.mt-3{margin-top:1.5rem}.weekly-planner{font-family:var(--mp-font-ui, "Nunito", "Inter", sans-serif)}.weekly-planner--home{margin-top:.5rem;padding:1.15rem 1.35rem 1.25rem;border-radius:1.15rem;background:#fff;border:1px solid rgba(26,20,16,.07);box-shadow:0 4px 18px #1a14100d}.weekly-planner__home-header{display:flex;flex-wrap:wrap;align-items:flex-start;justify-content:space-between;gap:1rem;margin-bottom:.85rem}.weekly-planner__home-title{margin:0;font-size:1.05rem;font-weight:900;color:#1a1410}.weekly-planner__home-summary{margin:.25rem 0 0;font-size:.88rem;font-weight:700;color:#57534e}.weekly-planner__empty-note{margin:1rem 0 0;font-size:.92rem;line-height:1.55;color:#78716c}.weekly-planner__empty-link{border:none;background:none;padding:0;font:inherit;font-weight:700;color:#d98b29;cursor:pointer}.weekly-planner__empty-link:hover{text-decoration:underline}.weekly-planner--home .weekly-planner__progress-row{margin-bottom:1rem}.weekly-planner--home .weekly-planner__grid{min-height:14rem}.weekly-planner--home .weekly-planner__day{min-height:13rem}.weekly-planner__header{display:flex;flex-wrap:wrap;align-items:flex-start;justify-content:space-between;gap:1rem;margin-bottom:1.25rem}.weekly-planner__title{margin:0;font-size:clamp(1.75rem,4vw,2.35rem);font-weight:900;color:#1a1410;letter-spacing:-.02em}.weekly-planner__subtitle{margin:.35rem 0 0;font-size:.95rem;color:#78716c}.weekly-planner__nav{display:inline-flex;align-items:center;gap:.65rem;padding:.35rem .5rem;border-radius:999px;background:#ffffffbf;border:1px solid rgba(26,20,16,.08)}.weekly-planner__nav-btn{width:2rem;height:2rem;border:none;border-radius:999px;background:#fff;color:#57534e;font-size:1.25rem;line-height:1;cursor:pointer;box-shadow:0 1px 4px #1a141014}.weekly-planner__nav-btn:hover{color:#d98b29}.weekly-planner__range{font-size:.92rem;font-weight:700;color:#44403c;min-width:9.5rem;text-align:center}.weekly-planner__progress-row{display:flex;align-items:center;gap:.75rem;margin-bottom:1.25rem;flex-wrap:wrap}.weekly-planner__progress-label{font-size:.82rem;font-weight:800;color:#57534e;text-transform:uppercase;letter-spacing:.04em}.weekly-planner__progress-track{flex:1;min-width:6rem;height:.45rem;border-radius:999px;background:#1a141014;overflow:hidden}.weekly-planner__progress-fill{height:100%;border-radius:inherit;background:linear-gradient(90deg,#ffc02e,#e6ad29);transition:width .25s ease}.weekly-planner__progress-status{font-size:.82rem;color:#78716c}.weekly-planner__error{margin:0 0 1rem;font-size:.88rem;color:#b45309}.weekly-planner__grid{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));gap:.65rem;min-height:18rem}@media (max-width: 900px){.weekly-planner__grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (max-width: 520px){.weekly-planner__grid{grid-template-columns:1fr}}.weekly-planner__day{display:flex;flex-direction:column;min-height:16rem;border-radius:1rem;background:#fff;border:1px solid rgba(26,20,16,.08);overflow:hidden}.weekly-planner__day--sunday{background:#fff8ef;border-color:#d98b2938}.weekly-planner__day-head{position:relative;display:flex;flex-direction:column;align-items:center;padding:.85rem .5rem .65rem;border-bottom:1px solid rgba(26,20,16,.06)}.weekly-planner__day--today .weekly-planner__day-head{padding-top:1rem}.weekly-planner__today-mark{position:absolute;top:0;left:.75rem;right:.75rem;height:3px;border-radius:0 0 4px 4px;background:#d98b29}.weekly-planner__day-label{font-size:.68rem;font-weight:800;letter-spacing:.06em;color:#a8a29e}.weekly-planner__day--today .weekly-planner__day-label,.weekly-planner__day--today .weekly-planner__day-num{color:#d98b29}.weekly-planner__day-num{font-size:1.35rem;font-weight:900;color:#44403c;line-height:1.1}.weekly-planner__day-body{flex:1;display:flex;flex-direction:column;gap:.5rem;padding:.65rem}.weekly-planner__empty-slot{flex:1;display:flex;align-items:center;justify-content:center;min-height:10rem;border:2px dashed rgba(168,162,158,.45);border-radius:.75rem;background:#fafaf999}.weekly-planner__day--sunday .weekly-planner__empty-slot{background:#fff8ef80;border-color:#d98b2947}.weekly-planner__empty-text{font-size:.82rem;font-weight:700;color:#a8a29e}.weekly-planner__task{display:flex;align-items:flex-start;gap:.45rem;width:100%;border:1px solid rgba(217,139,41,.25);border-radius:.75rem;background:#fffdf8;transition:border-color .15s ease,box-shadow .15s ease}.weekly-planner__task:hover{border-color:#d98b29;box-shadow:0 4px 12px #d98b291f}.weekly-planner__task-check{flex-shrink:0;width:1.35rem;height:1.35rem;margin:.65rem 0 0 .55rem;padding:0;border:2px solid rgba(217,139,41,.45);border-radius:.35rem;background:#fff;cursor:pointer;display:inline-flex;align-items:center;justify-content:center}.weekly-planner__task-check:hover:not(:disabled){border-color:#d98b29}.weekly-planner__task-check:disabled{opacity:.5;cursor:wait}.weekly-planner__task-check-icon{width:.55rem;height:.85rem;border-right:2px solid transparent;border-bottom:2px solid transparent;transform:rotate(45deg) translate(-1px,-1px);opacity:0}.weekly-planner__task--done .weekly-planner__task-check{border-color:#22c55e;background:#22c55e}.weekly-planner__task--done .weekly-planner__task-check-icon{border-right-color:#fff;border-bottom-color:#fff;opacity:1}.weekly-planner__task-body{display:flex;flex:1;flex-direction:column;align-items:flex-start;gap:.2rem;min-width:0;padding:.65rem .7rem .65rem 0;border:none;background:transparent;text-align:left;cursor:pointer}.weekly-planner__task-body:hover{background:transparent}.weekly-planner__task--done{opacity:.65;border-color:#22c55e59;background:#f0fdf4}.weekly-planner__task-subject{font-size:.68rem;font-weight:800;text-transform:uppercase;letter-spacing:.04em;color:#d98b29}.weekly-planner__task-chapter{font-size:.78rem;font-weight:800;color:#1a1410}.weekly-planner__task-activity{font-size:.82rem;line-height:1.35;color:#44403c}.weekly-planner__task-duration{font-size:.72rem;font-weight:700;color:#78716c}.weekly-planner__cta{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:1rem;margin-top:1.5rem;padding:1rem 1.25rem;border-radius:1rem;background:#fff8ef;border:1px solid rgba(217,139,41,.22)}.weekly-planner__cta-text{margin:0;flex:1;min-width:14rem;font-size:.92rem;line-height:1.5;color:#57534e}.weekly-planner__cta-btn{border:none;border-radius:999px;padding:.65rem 1.25rem;font-size:.88rem;font-weight:800;color:#fff;background:linear-gradient(135deg,#ffc02e,#e6ad29);cursor:pointer;white-space:nowrap}.weekly-planner__cta-btn:hover{filter:brightness(.97)}.home-dashboard{font-family:var(--mp-font-ui, "Nunito", "Inter", sans-serif)}.home-subjects{margin-bottom:2rem}.home-subjects__header{margin-bottom:1.35rem}.home-subjects__title{margin:0;font-size:clamp(1.85rem,4vw,2.5rem);font-weight:900;color:#1a1410;letter-spacing:-.02em;line-height:1.15}.home-subjects__subtitle{margin:.4rem 0 0;font-size:.92rem;color:#78716c;font-weight:500}.home-subjects__grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1rem;align-items:stretch}@media (max-width: 1100px){.home-subjects__grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (max-width: 560px){.home-subjects__grid{grid-template-columns:1fr}}.home-subject-card{display:flex;flex-direction:column;gap:1rem;padding:1.15rem 1.15rem 1.1rem;border-radius:1.15rem;background:#fff;border:1px solid rgba(26,20,16,.07);box-shadow:0 4px 18px #1a14100d;min-height:100%}.home-subject-card--featured{border-color:#d98b2973;box-shadow:0 6px 22px #d98b291a}.home-subject-card__head{display:flex;align-items:center;gap:.75rem}.home-subject-card__icon{width:2.65rem;height:2.65rem;flex-shrink:0;border-radius:.7rem;background:linear-gradient(145deg,#fff4d6,#ffe8a8);display:flex;align-items:center;justify-content:center;font-size:1.35rem;line-height:1}.home-subject-card__name{margin:0;font-size:1.05rem;font-weight:800;color:#1a1410;line-height:1.25}.home-subject-card__section{display:flex;flex-direction:column;gap:.2rem}.home-subject-card__label{margin:0;font-size:.62rem;font-weight:800;letter-spacing:.07em;text-transform:uppercase;color:#a8a29e}.home-subject-card__chapter{margin:0;font-size:.95rem;font-weight:800;color:#1a1410;line-height:1.35}.home-subject-card__accessed{margin:.15rem 0 0;font-size:.78rem;color:#a8a29e}.home-subject-card__progress-wrap{margin-top:auto}.home-subject-card__progress-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:.4rem}.home-subject-card__percent{font-size:.82rem;font-weight:800;color:#d98b29}.home-subject-card__progress-track{height:.42rem;border-radius:999px;background:#1a141014;overflow:hidden}.home-subject-card__progress-fill{height:100%;border-radius:inherit;background:linear-gradient(90deg,#ffc02e,#e6ad29);transition:width .25s ease}.home-subject-card__actions{display:grid;grid-template-columns:1fr 1fr;gap:.55rem;margin-top:.15rem}.home-subject-card__btn{border:none;border-radius:.65rem;padding:.62rem .5rem;font-size:.82rem;font-weight:800;font-family:inherit;cursor:pointer;transition:filter .15s ease,transform .15s ease;white-space:nowrap}.home-subject-card__btn:hover{filter:brightness(.97)}.home-subject-card__btn--primary{background:linear-gradient(135deg,#ffc02e,#e6ad29);color:#1a1410}.home-subject-card__btn--secondary{background:#2b2118;color:#fff}
