@import"https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&display=swap";:root{font-family:Manrope,Inter,system-ui,sans-serif;color:#e9eef9;background:#070b14;font-synthesis:none;--bg: #070b14;--surface: #0e1524;--surface-2: #131c2e;--line: #22304a;--muted: #8f9bb2;--primary: #7c5cff;--cyan: #35d6ff;--success: #39d98a;--danger: #ff6680}*{box-sizing:border-box}body{margin:0;min-width:320px;min-height:100vh;background:radial-gradient(circle at 70% -20%,#20164d 0,transparent 35%),var(--bg)}button,input,textarea,select{font:inherit}button{cursor:pointer}button:disabled{opacity:.55;cursor:wait}input,textarea,select{color:#ecf2ff;background:#0a1120;border:1px solid var(--line);border-radius:12px;padding:12px 14px;outline:none}input:focus,textarea:focus,select:focus{border-color:#765df1;box-shadow:0 0 0 3px #765df124}select option{background:#101828}label{display:grid;gap:7px;color:#c8d1e2;font-size:13px;font-weight:600}label>span{display:flex;align-items:center;gap:6px}h1,h2,h3,h4,p{margin-top:0}h2{font-size:clamp(25px,3vw,38px);margin-bottom:0}h3{margin-bottom:12px}small,.muted{color:var(--muted)}.app-shell{min-height:100vh;display:grid;grid-template-columns:250px minmax(0,1fr)}.sidebar{position:sticky;top:0;height:100vh;background:#090f1cdd;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-right:1px solid var(--line);padding:20px 14px;display:flex;flex-direction:column;z-index:30}.sidebar-brand{display:flex;align-items:center;gap:10px;padding:0 5px 22px}.sidebar-brand strong{display:block;font-size:17px}.sidebar-brand span{color:var(--muted);font-size:10px}.brand-mark{width:58px;height:58px;display:grid;place-items:center;border-radius:19px;color:#fff;background:linear-gradient(135deg,var(--primary),#4ebcff);box-shadow:0 12px 35px #6d5df34a;margin:0 auto}.small-mark{width:40px;height:40px;border-radius:12px;margin:0;flex:0 0 auto}.small-mark svg{width:20px}.new-lesson,.primary,.secondary,.ghost,.danger,.link-button{border:0;border-radius:11px;min-height:40px;padding:9px 14px;font-weight:700;display:inline-flex;align-items:center;justify-content:center;gap:7px}.new-lesson,.primary{color:#fff;background:linear-gradient(135deg,#7457f5,#4d8af7);box-shadow:0 8px 24px #5f5fec33}.new-lesson{width:100%;margin-bottom:16px}.secondary{color:#c9c0ff;background:#6f5aff20;border:1px solid #745eff52}.ghost{color:#bdc8da;background:#111a2a;border:1px solid var(--line)}.danger{color:#ff9bac;background:#ff668017;border:1px solid #ff668039}.wide{width:100%}.link-button{background:none;color:#aaa0ff;width:100%;margin-top:10px}.sidebar nav{display:grid;gap:3px;overflow-y:auto}.sidebar nav button,.logout{width:100%;color:#99a6bd;border:0;background:transparent;padding:10px 12px;border-radius:10px;display:flex;align-items:center;gap:11px;text-align:left;font-weight:600}.sidebar nav button:hover,.sidebar nav button.active{color:#f3f5ff;background:linear-gradient(90deg,#6e57ee24,#273b5d22)}.sidebar nav button.active{box-shadow:inset 3px 0 #8067ff}.sidebar nav em{margin-left:auto;color:#fff;background:#ff6680;border-radius:999px;padding:1px 7px;font-size:11px;font-style:normal}.sidebar-bottom{margin-top:auto;padding-top:15px;display:grid;gap:6px}.cloud-state{color:#75e6ad;background:#39d98a10;border:1px solid #39d98a22;padding:10px;border-radius:10px;display:flex;gap:7px;align-items:center;font-size:11px}.cloud-state.offline{color:#ffc76b}.main-area{min-width:0}.topbar{height:64px;border-bottom:1px solid #1c2639;display:flex;align-items:center;padding:0 clamp(16px,4vw,48px);position:sticky;top:0;z-index:15;background:#070b14cb;-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px)}.topbar-spacer{flex:1}.menu-button,.mobile-close{display:none}.back-button{border:0;color:#a9b5ca;background:transparent;display:flex;gap:4px;align-items:center}.autosave{color:#71dfa7;border:1px solid #39d98a30;background:#39d98a0d;border-radius:999px;padding:6px 10px;font-size:11px;display:flex;align-items:center;gap:4px}.content-page{max-width:1220px;margin:0 auto;padding:32px clamp(16px,4vw,48px) 80px}.page-title,.panel-heading{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:22px}.page-title{margin-bottom:28px}.panel-heading h3,.panel-heading p{margin-bottom:0}.eyebrow{color:#8774ee;font-size:10px;font-weight:800;letter-spacing:.16em;margin-bottom:5px}.panel{background:linear-gradient(145deg,#101827ed,#0c1321e8);border:1px solid var(--line);border-radius:18px;padding:clamp(16px,2.5vw,26px);box-shadow:0 16px 50px #00000024}.stack{display:grid;gap:18px}.kpi-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-bottom:22px}.kpi{background:#0e1625;border:1px solid var(--line);border-radius:15px;padding:18px;display:flex;align-items:center;gap:13px;color:#8a76ff}.kpi strong,.kpi small{display:block}.kpi strong{color:#fff;font-size:24px;line-height:1;margin-bottom:4px}.search-box{display:flex;align-items:center;gap:8px;padding:0 13px;border:1px solid var(--line);border-radius:12px;background:#0a1120;color:#697994;margin-bottom:20px}.search-box input{background:transparent;border:0;box-shadow:none;padding-left:3px;width:100%}.lesson-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:14px}.lesson-card{text-align:left;color:inherit;background:linear-gradient(145deg,#101827,#0c1320);border:1px solid var(--line);padding:20px;border-radius:16px;min-height:165px;transition:.18s ease}.lesson-card:hover,.lesson-card.selected{transform:translateY(-2px);border-color:#735de4;box-shadow:0 15px 38px #0005}.subject-dot{width:8px;height:8px;background:linear-gradient(135deg,#8d6dff,var(--cyan));border-radius:50%;box-shadow:0 0 12px #6f76ff;margin-bottom:18px}.lesson-card p{color:#8978e8;font-size:11px;font-weight:800;text-transform:uppercase;letter-spacing:.08em;margin-bottom:6px}.lesson-card h3{font-size:17px;min-height:42px}.lesson-footer{border-top:1px solid #1d2940;padding-top:12px;display:flex;justify-content:space-between;color:var(--muted);font-size:10px}.lesson-footer span{display:flex;align-items:center;gap:3px}.lesson-header{display:flex;align-items:center;gap:14px;margin-bottom:18px;padding:16px 20px}.lesson-inputs{display:grid;grid-template-columns:minmax(200px,2fr) minmax(130px,1fr);gap:9px;flex:1}.title-input{font-weight:800;font-size:16px}.save-state{color:var(--muted);font-size:10px}.icon-button{width:38px;height:38px;flex:0 0 auto;border-radius:10px;border:1px solid var(--line);display:inline-grid;place-items:center;color:#aeb9ca;background:#111a28;padding:0}.recorder-visual{text-align:center;display:grid;justify-items:center;gap:14px;padding:20px 0 28px}.recorder-visual strong{font-size:clamp(34px,6vw,58px);font-variant-numeric:tabular-nums;letter-spacing:.04em}.mic-orb{width:92px;height:92px;border-radius:50%;display:grid;place-items:center;color:#a99cff;background:radial-gradient(circle,#745bf82a,#121b2c 65%);border:1px solid #735df348}.mic-orb.active{color:#ff7187;animation:pulse 1.4s infinite}@keyframes pulse{50%{box-shadow:0 0 0 18px #ff668009,0 0 40px #ff668033}}.level-track{height:5px;max-width:380px;width:80%;background:#202b3e;border-radius:99px;overflow:hidden}.level-track span{display:block;height:100%;background:linear-gradient(90deg,#7661f1,#42d8e9);transition:width .1s}.button-row{display:flex;gap:9px;align-items:center;justify-content:center}.button-row.wrap{flex-wrap:wrap;justify-content:flex-start}.audio-result{margin-top:18px;padding-top:18px;border-top:1px solid var(--line);display:grid;gap:12px}audio{width:100%}.status-pill,.counter{color:#aeb9cc;border:1px solid var(--line);background:#111a2a;padding:6px 10px;border-radius:999px;font-size:10px}.status-pill.recording{color:#ff8497;border-color:#ff668044;background:#ff668010}.status-pill.paused{color:#ffd17a}.editor-area{width:100%;min-height:270px;line-height:1.7;resize:vertical}.editor-area.tall{min-height:480px}.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.settings-grid{max-width:820px}.toggle-row{grid-column:1 / -1;display:flex;align-items:center;justify-content:space-between;padding:15px;border:1px solid var(--line);border-radius:12px}.toggle-row span{display:grid}.toggle-row input{width:21px;height:21px}.notice{border-radius:11px;padding:12px 14px;display:flex;align-items:center;gap:8px;font-size:12px;margin-bottom:14px}.notice.info{color:#aabfff;background:#537cff13;border:1px solid #597ef534}.notice.error{color:#ff9dad;background:#ff668012;border:1px solid #ff66803d;justify-content:space-between}.notice.warning{color:#ffd27f;background:#ffc45710;border:1px solid #ffc45735}.notice.success{color:#85e8b5;background:#39d98a10;border:1px solid #39d98a32}.file-list{display:grid;gap:9px}.file-row{border:1px solid #202d43;border-radius:13px;padding:13px;display:grid;grid-template-columns:auto minmax(130px,1fr) auto;align-items:center;gap:12px}.file-icon{width:42px;height:42px;display:grid;place-items:center;border-radius:11px;color:#9684ff;background:#745cf31a}.file-meta{min-width:0}.file-meta strong,.file-meta small{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.file-meta strong{font-size:13px}.file-meta small{margin-top:4px;font-size:10px}.file-actions{display:flex;align-items:center;gap:7px}.inline-retry{border:0;background:transparent;color:inherit;display:inline-flex;align-items:center;gap:4px}.term-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:10px}.term-grid article,details{background:#0a1220;border:1px solid var(--line);border-radius:12px;padding:15px}.pdf-pagination{display:flex;align-items:center;justify-content:center;gap:12px;margin:0 0 14px;font-size:12px}.book-question{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:9px;margin:14px 0}.term-grid p,.prose p,.prose li{color:#b3bfd1;line-height:1.7}details summary{cursor:pointer;font-weight:700}.empty-state{text-align:center;display:grid;justify-items:center;padding:42px 20px;color:#7e8ca3}.empty-state h3,.empty-state h4{color:#d8e0ee;margin:12px 0 7px}.empty-state p{max-width:430px;font-size:12px}.auth-shell{min-height:100vh;display:grid;place-items:center;padding:20px}.auth-card{width:min(430px,100%);padding:38px;text-align:center}.glass{background:#0e1627e8;border:1px solid #273451;border-radius:24px;box-shadow:0 25px 80px #0008;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px)}.auth-card h1{margin:18px 0 8px}.auth-card form{text-align:left;margin-top:25px}.loading-screen{min-height:100vh;display:grid;place-content:center;justify-items:center;gap:14px;color:var(--muted)}.loading-screen.inline{min-height:60vh}.spin{animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.mobile-close,.nav-overlay{border:0;background:transparent;color:#fff}@media(max-width:850px){.app-shell{display:block}.sidebar{position:fixed;left:0;transform:translate(-105%);width:min(290px,88vw);transition:transform .22s ease}.sidebar.open{transform:translate(0)}.mobile-close{margin-left:auto;display:grid;place-items:center}.nav-overlay{display:block;position:fixed;top:0;right:0;bottom:0;left:0;z-index:25;background:#0009;width:100%}.menu-button{display:grid;place-items:center;width:38px;height:38px;background:#111a29;border:1px solid var(--line);border-radius:10px;color:#fff;margin-right:8px}.topbar{height:58px;padding:0 14px}.content-page{padding-top:22px}}@media(max-width:620px){.kpi-grid{grid-template-columns:1fr}.kpi{padding:13px}.kpi strong{font-size:20px}.lesson-grid{grid-template-columns:1fr}.lesson-card{min-height:140px}.page-title{align-items:flex-end}.panel-heading{align-items:flex-start;flex-wrap:wrap}.lesson-header{align-items:stretch}.lesson-inputs{grid-template-columns:1fr}.save-state{display:none}.form-grid{grid-template-columns:1fr}.file-row{grid-template-columns:auto minmax(0,1fr)}.file-actions{grid-column:1 / -1;flex-wrap:wrap}.file-actions .secondary{flex:1}.button-row{flex-wrap:wrap}.book-question{grid-template-columns:1fr}.button-row>button{flex:1;min-width:140px}.auth-card{padding:28px 20px}.autosave{display:none}}