@layer teachsystem-tokens, teachsystem-base, teachsystem-components, teachsystem-shell, teachsystem-features, teachsystem-responsive;@layer teachsystem-tokens{:root{color-scheme:light;--ds-bg:#ffffff;--ds-bg-soft:#f5f3ee;--ds-bg-warm:#efede6;--ds-surface:#ffffff;--ds-surface-raised:#fffefa;--ds-ink:#0a0a0a;--ds-ink-2:#1c1c1e;--ds-muted:#6e6e73;--ds-muted-2:#9a968e;--ds-line:#e6e2d8;--ds-line-2:#edeae2;--ds-accent:#6b5aed;--ds-accent-soft:#eeebff;--ds-accent-hover:#e5e0ff;--ds-accent-border:#ddd6ff;--ds-accent-ink:#4c3cab;--ds-success:#2ba84a;--ds-success-soft:#eaf8ee;--ds-danger:#c8372d;--ds-danger-soft:#fff0ee;--ds-radius-control:14px;--ds-radius-card:28px;--ds-radius-large:34px;--ds-radius-dialog:26px;--ds-pill:999px;--ds-container:1100px;--ds-container-narrow:820px;--ds-gutter:36px;--ds-shadow-floating:0 20px 55px rgba(28,28,30,0.12);--ds-font:"Helvetica Neue",Helvetica,"Inter Tight","SF Pro Text",-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;--bg:var(--ds-bg);--bg-soft:var(--ds-bg-soft);--bg-warm:var(--ds-bg-warm);--surface:var(--ds-surface);--surface-raised:var(--ds-surface-raised);--ink:var(--ds-ink);--ink-2:var(--ds-ink-2);--muted:var(--ds-muted);--muted-2:var(--ds-muted-2);--line:var(--ds-line);--line-2:var(--ds-line-2);--accent:var(--ds-accent);--accent-soft:var(--ds-accent-soft);--danger:var(--ds-danger);--danger-soft:var(--ds-danger-soft);--ok:var(--ds-success);--ok-soft:var(--ds-success-soft);--radius:var(--ds-radius-card);--radius-sm:var(--ds-radius-control);--pill:var(--ds-pill);--maxw:var(--ds-container);--font:var(--ds-font)}}@layer teachsystem-polish{.ai-admin-shell{--admin-max-width:1360px;background:#f7f7f5;padding:18px 28px 72px}.admin-topbar-wrap,.ai-admin-header,.ai-admin-prompt-workspace,.ai-admin-runs-view,.ai-admin-status,.ai-admin-view-tabs,.product-admin-loading,.product-admin-metrics,.product-admin-overview-grid,.product-admin-shell .ai-admin-header,.product-admin-shell .ai-admin-status,.product-transcription-history,.product-user-detail-grid,.product-users-card{width:min(100%,var(--admin-max-width))}.admin-topbar-wrap{margin:0 auto 54px}.admin-topbar{display:grid;grid-template-columns:minmax(160px,1fr) auto minmax(160px,1fr);align-items:center;min-height:58px;border-bottom:1px solid #dededa}.admin-topbar a,.admin-topbar button{color:#62625e;text-decoration:none}.admin-topbar-brand{display:inline-flex;align-items:center;justify-self:start;gap:10px}.admin-topbar-brand>span:last-child{border-left:1px solid #d5d5d0;padding-left:10px;color:#878782;font-size:12px;font-weight:650;letter-spacing:.04em;text-transform:uppercase}.admin-topbar-sections{display:flex;align-items:center;justify-content:center;gap:4px;border-radius:999px;background:#ebebe8;padding:4px}.admin-topbar-sections a,.admin-topbar-utilities a,.admin-topbar-utilities button{display:inline-flex;align-items:center;justify-content:center;gap:7px;min-height:34px;border:0;border-radius:999px;background:transparent;padding:0 12px;font:inherit;font-size:12px;font-weight:650;transition:background-color .14s ease,color .14s ease}.admin-topbar-sections a.is-active,.admin-topbar-sections a:hover{background:#fff;color:#11110f;box-shadow:0 1px 4px rgba(18,18,16,.08)}.admin-topbar-utilities{display:flex;align-items:center;justify-content:flex-end;gap:2px}.admin-topbar-utilities a:hover,.admin-topbar-utilities button:hover{background:#ebebe8;color:#11110f}.ai-admin-header{align-items:flex-end;margin-bottom:28px}.ai-admin-header .eyebrow{margin-bottom:10px;color:#858580;font-size:11px;font-weight:700;letter-spacing:.08em}.ai-admin-header h1,.ai-admin-login-card h1{font-size:clamp(38px,4.8vw,62px);font-weight:450;letter-spacing:-.06em}.ai-admin-header p:not(.eyebrow){max-width:600px;margin-top:11px;color:#74746f;font-size:15px}.ai-admin-view-tabs{gap:24px;margin-bottom:20px}.ai-admin-view-tabs button{padding:0 2px;color:#797974;font-size:13px}.ai-admin-view-tabs button.is-active,.ai-admin-view-tabs button:hover{color:#11110f}.ai-admin-view-tabs button.is-active{border-bottom-color:#11110f}.ai-admin-card,.ai-admin-login-card{border-color:#dededa;border-radius:18px;background:#fff}.ai-admin-prompt-workspace{grid-template-columns:236px minmax(0,1fr);gap:12px}.ai-admin-sidebar{top:18px;border-radius:16px;padding:10px}.ai-admin-sidebar .ai-admin-card-heading{padding:8px 8px 5px}.ai-admin-prompt-list{gap:2px}.ai-admin-prompt-item{border-radius:11px;padding:11px 10px}.ai-admin-prompt-item.is-active{border-color:transparent;background:#ededeb;color:#11110f}.ai-admin-prompt-item.is-active code,.ai-admin-prompt-item.is-active small{color:#686863}.ai-admin-editor-head,.ai-admin-editor-section{padding:26px 28px}.ai-admin-editor-state{display:flex;align-items:flex-end;flex-direction:column;gap:7px}.ai-admin-draft-badge{display:inline-flex;align-items:center;gap:6px;color:#9b641f;font-size:11px;font-weight:650}.ai-admin-draft-badge:before{width:6px;height:6px;border-radius:50%;background:#d68d31;content:""}.ai-admin-version-badge{min-height:28px;border:0;background:#f0f0ed;padding:0 10px;color:#696964;font-size:11px}.ai-admin-shell input,.ai-admin-shell select,.ai-admin-shell textarea{border-color:#d9d9d4;border-radius:10px;background:#fff}.ai-admin-shell input:focus,.ai-admin-shell select:focus,.ai-admin-shell textarea:focus{border-color:#85857f;box-shadow:0 0 0 3px rgba(34,34,31,.08)}.ai-model-route{border-color:#dfdfda;border-radius:14px;background:#f7f7f5}.ai-model-catalog-note,.ai-prompt-model-note{border-radius:10px}.product-admin-metrics{gap:10px}.product-admin-metric{min-height:142px;border-radius:16px;padding:18px}.product-admin-metric-label svg{color:#74746f}.product-activity-chart span,.product-dau-day>span,.product-feature-row i{background:#20201e}.product-users-card{border-radius:18px}.product-user-search{border-color:#d9d9d4;border-radius:999px;background:#f3f3f0}.product-users-table th{background:#f5f5f2}.product-users-table tbody tr:hover{background:#f8f8f6}.product-admin-breadcrumb:hover,.product-user-open{color:#11110f}.product-user-open:hover{background:#ebebe8}@media (max-width:960px){.ai-admin-prompt-workspace{grid-template-columns:minmax(0,1fr)}.ai-admin-sidebar{position:static;max-height:none;overflow:visible}}}@layer teachsystem-polish{@media (max-width:760px){.ai-admin-shell{padding:10px 14px 48px}.admin-topbar-wrap{margin-bottom:36px}.admin-topbar{grid-template-columns:auto 1fr auto}.admin-topbar-brand>span:last-child,.admin-topbar-sections svg,.admin-topbar-utilities span{display:none}.admin-topbar-sections{justify-self:center}.admin-topbar-utilities a,.admin-topbar-utilities button{width:36px;padding:0}.ai-admin-header{align-items:stretch}.ai-admin-editor-state{align-items:flex-start}.ai-admin-editor-head,.ai-admin-editor-section{padding:20px 17px}}@media (max-width:420px){.admin-topbar-brand .logo-sub{display:none}.admin-topbar-sections a{padding-inline:10px}}}@layer teachsystem-features{.lesson-homework-panel{display:grid;gap:20px;border:0;border-radius:0;background:transparent;box-shadow:none;padding:8px 0 0}.homework-panel-header,.homework-question-heading,.homework-results-heading{display:flex;align-items:flex-start;justify-content:space-between;gap:20px}.homework-panel-header>div:first-child,.homework-question-heading>div,.homework-results-heading>div{display:grid;gap:5px}.homework-panel-header h2{margin:0;color:var(--ds-ink);font-size:clamp(28px,4vw,36px);font-weight:550;letter-spacing:-.045em}.homework-panel-header p{max-width:650px;margin:0;color:var(--ds-muted);font-size:14px;line-height:1.5}.homework-instructions{display:grid;gap:5px;border-left:3px solid var(--ds-accent);border-radius:0 16px 16px 0;background:var(--ds-bg-soft);padding:14px 18px}.homework-instructions strong,.quiz-builder-intro strong{color:var(--ds-ink);font-size:14px}.homework-instructions p,.quiz-builder-intro p{margin:0;color:var(--ds-muted);font-size:13px;line-height:1.45}.quiz-builder{display:grid;gap:0;border-top:1px solid var(--ds-line);border-bottom:1px solid var(--ds-line);background:transparent;padding:0}.quiz-builder.is-locked{opacity:.78}.quiz-builder-intro{display:grid;grid-template-columns:auto minmax(0,1fr);gap:12px;align-items:center;padding:20px 0}.quiz-builder-icon{display:grid;place-items:center;width:40px;height:40px;border-radius:14px;background:var(--ds-accent);color:white;box-shadow:0 10px 22px rgba(107,90,237,.2)}.quiz-builder-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.quiz-builder-section{display:grid;gap:16px;border-top:1px solid var(--ds-line);padding:22px 0}.quiz-builder-section h3{margin:0;color:var(--ds-ink);font-size:16px;font-weight:750;letter-spacing:-.02em}.homework-meta-editor label,.quiz-builder-field{display:grid;gap:7px;min-width:0}.homework-meta-editor label>span,.quiz-builder-field>span,.quiz-builder-topics>span{color:var(--ds-muted);font-size:11px;font-weight:800;letter-spacing:.055em;text-transform:uppercase}.quiz-builder-label{display:inline-flex;align-items:center;gap:5px}.quiz-builder-info{display:inline-grid;place-items:center;width:22px;height:22px;border:0;border-radius:50%;background:transparent;color:var(--ds-muted-2);cursor:help;padding:0}.quiz-builder-info:focus-visible,.quiz-builder-info:hover{background:var(--ds-accent-soft);color:var(--ds-accent);outline:0}.quiz-builder-tooltip{max-width:290px;line-height:1.45}.homework-meta-editor input,.homework-meta-editor textarea,.quiz-builder-field input,.quiz-builder-field select,.quiz-builder-field textarea{width:100%;min-height:44px;border:1px solid var(--ds-line);border-radius:14px;outline:0;background:rgba(255,255,255,.88);color:var(--ds-ink);font:inherit;font-size:14px;font-weight:650;line-height:1.4;padding:10px 12px;transition:border-color .15s ease,box-shadow .15s ease}.homework-meta-editor textarea,.quiz-builder-field textarea{resize:vertical}.homework-meta-editor input:focus,.homework-meta-editor textarea:focus,.quiz-builder-field input:focus,.quiz-builder-field select:focus,.quiz-builder-field textarea:focus{border-color:var(--ds-accent);box-shadow:0 0 0 3px rgba(107,90,237,.12)}.quiz-builder-field input:disabled,.quiz-builder-field select:disabled,.quiz-builder-field textarea:disabled{background:rgba(255,255,255,.52);color:var(--ds-muted)}.quiz-builder-field.is-wide{position:relative}.quiz-builder-field.is-wide small{position:absolute;right:12px;bottom:10px;color:var(--ds-muted-2);font-size:10px}.quiz-builder-types{display:grid;gap:8px;margin:0;border:0;padding:0}.quiz-builder-types legend{display:flex;align-items:center;gap:5px;color:var(--ds-muted);font-size:11px;font-weight:800;letter-spacing:.055em;text-transform:uppercase}.homework-weak-skills>div,.quiz-builder-topics>div,.quiz-builder-types>div{display:flex;flex-wrap:wrap;gap:8px}.homework-weak-skills span,.quiz-builder-topics button,.quiz-builder-types label{display:inline-flex;align-items:center;gap:6px;min-height:34px;border:1px solid var(--ds-line);border-radius:var(--ds-pill);background:rgba(255,255,255,.82);color:var(--ds-muted);font-size:12px;font-weight:750;padding:0 12px}.quiz-builder-types label{cursor:pointer}.quiz-builder-topics button.is-selected,.quiz-builder-types label.is-selected{border-color:var(--ds-accent-border);background:var(--ds-accent);color:white}.quiz-builder-types input{position:absolute;opacity:0;pointer-events:none}.quiz-builder-types label:not(.is-selected) svg{display:none}.quiz-builder-topics{display:grid;gap:9px}.quiz-builder-topics button{cursor:pointer}.quiz-builder-footer{display:flex;align-items:center;justify-content:space-between;gap:20px;border-top:1px solid var(--ds-line);padding:20px 0}.quiz-builder-footer p{margin:0;color:var(--ds-muted);font-size:12px;line-height:1.45}.quiz-builder-advanced{border-top:1px solid var(--ds-line);padding:0}.quiz-builder-advanced summary{display:flex;align-items:center;min-height:58px;color:var(--ds-ink-2);cursor:pointer;font-size:13px;font-weight:750;list-style:none}.quiz-builder-advanced summary::-webkit-details-marker{display:none}.quiz-builder-advanced summary:after{content:"+";margin-left:auto;color:var(--ds-accent);font-size:20px;font-weight:500}.quiz-builder-advanced[open] summary:after{content:"−"}.quiz-builder-advanced>div{display:grid;gap:16px;padding:0 0 22px}.quiz-builder-mistakes{display:flex;align-items:flex-start;gap:10px;cursor:pointer}.quiz-builder-mistakes input{width:18px;height:18px;margin-top:2px;accent-color:var(--ds-accent)}.quiz-builder-mistakes span{display:grid;gap:2px}.quiz-builder-mistakes strong{color:var(--ds-ink);font-size:13px}.quiz-builder-mistakes small{color:var(--ds-muted);font-size:11px}.homework-meta-editor{display:grid;grid-template-columns:minmax(190px,.8fr) minmax(260px,1.3fr) auto;gap:12px;align-items:end;border:1px solid var(--ds-line);border-radius:20px;background:var(--ds-bg-soft);padding:18px}.quiz-control-card{display:grid;gap:16px;border:1px solid var(--ds-accent-border);border-radius:22px;background:linear-gradient(135deg,rgba(107,90,237,.09),rgba(255,255,255,.92) 58%),white;padding:20px}.quiz-control-card.is-published{border-color:#b8dfc5;background:linear-gradient(135deg,rgba(57,166,91,.1),rgba(255,255,255,.94) 58%),white}.quiz-control-card.is-closed{border-color:var(--ds-line);background:var(--ds-bg-soft)}.quiz-control-card.is-failed{border-color:#f0cbc6;background:var(--ds-danger-soft)}.quiz-control-heading>div{display:grid;gap:5px}.quiz-control-heading strong{color:var(--ds-ink);font-size:17px;letter-spacing:-.015em}.quiz-control-heading p{max-width:680px;margin:0;color:var(--ds-muted);font-size:13px;line-height:1.45}.quiz-control-status{display:inline-flex;align-items:center;gap:7px;width:fit-content;color:var(--ds-accent-ink);font-size:11px;font-weight:850;letter-spacing:.06em;text-transform:uppercase}.quiz-control-status>span{width:8px;height:8px;border-radius:50%;background:currentColor}.quiz-control-status.is-published{color:#20723a}.quiz-control-status.is-closed{color:var(--ds-muted)}.quiz-control-status.is-failed{color:var(--ds-danger)}.quiz-control-status.is-generating>span{animation:quiz-analysis-pulse 1.1s ease-in-out infinite}.quiz-control-link{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:14px;align-items:end;border:1px solid rgba(107,90,237,.18);border-radius:16px;background:rgba(255,255,255,.78);padding:13px 14px}.quiz-control-link>div:first-child{display:grid;gap:4px;min-width:0}.quiz-control-link>div:first-child>span:first-child{color:var(--ds-muted);font-size:11px;font-weight:800;text-transform:uppercase}.quiz-control-link a,.quiz-control-link-value{min-width:0;overflow:hidden;color:var(--ds-accent-ink);font-size:13px;font-weight:700;text-overflow:ellipsis;white-space:nowrap}.quiz-control-link.is-disabled{border-color:var(--ds-line);background:rgba(255,255,255,.45)}.quiz-control-link.is-disabled .quiz-control-link-value{color:var(--ds-muted-2);text-decoration:line-through}.quiz-control-actions,.quiz-control-link-actions{display:flex;flex-wrap:wrap;gap:8px}.quiz-control-actions{align-items:center}.quiz-settings-summary{display:flex;flex-wrap:wrap;gap:7px;margin-top:-4px}.quiz-settings-summary>span{display:inline-flex;align-items:center;min-height:30px;border:1px solid var(--ds-line);border-radius:var(--ds-pill);background:white;color:var(--ds-muted);font-size:12px;font-weight:700;padding:0 11px}.homework-lock-note{display:flex;align-items:center;gap:9px;border:1px solid #ead8a7;border-radius:14px;background:#fff9e9;color:#765d1d;font-size:13px;font-weight:700;padding:11px 14px}.homework-question-heading{align-items:center;margin-top:2px}.homework-question-heading h3,.homework-results-heading h3{margin:0;color:var(--ds-ink);font-size:22px;font-weight:550;letter-spacing:-.03em}.homework-results{display:grid;gap:16px;border:1px solid var(--ds-line);border-radius:24px;background:white;padding:20px}.homework-results-heading{align-items:center}.homework-completion{border-radius:var(--ds-pill);background:var(--ds-accent-soft);color:var(--ds-accent-ink);font-size:12px;font-weight:800;padding:8px 12px}.homework-stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px}.homework-stat-card{display:flex;align-items:center;gap:10px;min-width:0;border-radius:16px;background:var(--ds-bg-soft);padding:13px}.homework-stat-card>span{display:grid;place-items:center;width:34px;height:34px;flex:0 0 auto;border-radius:11px;background:white;color:var(--ds-accent)}.homework-stat-card div{display:grid;min-width:0}.homework-stat-card strong{color:var(--ds-ink);font-size:18px;line-height:1.1}.homework-stat-card small{color:var(--ds-muted);font-size:11px}.homework-weak-skills{display:grid;gap:8px}.homework-weak-skills>strong{color:var(--ds-ink);font-size:13px}.homework-weak-skills span{min-height:30px;background:#fff7e8;color:#865b0d}.homework-attempt-table-wrap{overflow-x:auto;border:1px solid var(--ds-line);border-radius:16px}.homework-attempt-table{width:100%;min-width:670px;border-collapse:collapse}.homework-attempt-table td,.homework-attempt-table th{border-bottom:1px solid var(--ds-line-2);color:var(--ds-muted);font-size:12px;font-weight:650;padding:11px 13px;text-align:left}.homework-attempt-table th{background:var(--ds-bg-soft);font-size:10px;letter-spacing:.05em;text-transform:uppercase}.homework-attempt-table tr:last-child td{border-bottom:0}.homework-attempt-table tbody tr{cursor:pointer}.homework-attempt-table tbody tr.is-selected,.homework-attempt-table tbody tr:hover{background:color-mix(in srgb,var(--ds-accent-soft) 58%,white)}.homework-attempt-table button{border:0;background:transparent;color:var(--ds-ink);font:inherit;font-weight:800;padding:0}.homework-attempt-detail{display:grid;gap:14px;border-top:1px solid var(--ds-line);padding-top:18px}.quiz-preview-modal{max-height:min(880px,calc(100dvh - 30px))}.quiz-preview-switch{display:flex;justify-content:center;gap:4px;margin-bottom:14px}.quiz-preview-switch button{min-height:40px;border:0;border-radius:12px;background:transparent;color:var(--ds-muted);cursor:pointer;font:inherit;font-size:13px;font-weight:750;padding:0 14px}.quiz-preview-switch button.is-active{background:var(--ds-accent-soft);color:var(--ds-accent-ink)}.quiz-preview-device{width:min(760px,100%);margin:0 auto;overflow:hidden;border:1px solid #e0deeb;border-radius:28px;background:radial-gradient(circle at 15% -5%,rgba(107,90,237,.17),transparent 34%),linear-gradient(180deg,#f5f3ff,#f7f8fb 50%,#f3f5f7);box-shadow:0 22px 60px rgba(26,32,44,.12)}.quiz-preview-intro-card{width:min(620px,100%);min-height:0;margin:0 auto;border:0;background:transparent;box-shadow:none}.quiz-preview-play{display:grid;min-height:610px}.quiz-play-header.is-preview{width:calc(100% - 32px)}.quiz-play-stage.is-preview{width:min(680px,calc(100% - 40px));min-height:390px;padding:26px 0 34px}.quiz-play-stage.is-preview h1{font-size:clamp(25px,4vw,36px)}.quiz-play-footer.is-preview{position:static;z-index:auto;min-height:104px;padding:16px 28px;backdrop-filter:none}.quiz-preview-navigation{display:flex;align-items:center;justify-content:center;gap:14px;margin-top:16px}.quiz-preview-navigation>span{color:var(--ds-muted);font-size:12px;font-weight:800}.quiz-preview{display:grid;gap:16px;width:min(680px,100%);margin:0 auto}.quiz-preview-hero{display:grid;gap:10px;border:1px solid var(--ds-accent-border);border-radius:24px;background:var(--ds-accent-soft);padding:24px}.quiz-preview-hero>span{color:var(--ds-accent-ink);font-size:11px;font-weight:850;letter-spacing:.06em;text-transform:uppercase}.quiz-preview-hero h3{margin:0;color:var(--ds-ink);font-size:30px;letter-spacing:-.045em}.quiz-preview-hero p{margin:0;color:var(--ds-muted);line-height:1.5}.quiz-preview-hero>div{display:flex;flex-wrap:wrap;gap:8px}.quiz-preview-hero>div span{display:inline-flex;align-items:center;gap:5px;border-radius:var(--ds-pill);background:rgba(255,255,255,.75);color:var(--ds-muted);font-size:12px;font-weight:750;padding:7px 10px}.quiz-preview-questions{display:grid;gap:10px}.quiz-preview-questions article{display:grid;gap:10px;border:1px solid var(--ds-line);border-radius:20px;background:white;padding:18px}.quiz-preview-questions article>span{color:var(--ds-muted);font-size:11px;font-weight:800;text-transform:uppercase}.quiz-preview-questions article>strong{color:var(--ds-ink);font-size:17px;line-height:1.4}.quiz-preview-options{display:grid;gap:7px}.quiz-preview-answer-line,.quiz-preview-options div{display:flex;align-items:center;gap:9px;min-height:40px;border-radius:12px;background:var(--ds-bg-soft);color:var(--ds-ink-2);font-size:13px;padding:8px 11px}.quiz-preview-options div span{display:grid;place-items:center;width:24px;height:24px;border-radius:8px;background:white;color:var(--ds-muted);font-weight:800}.lesson-quiz-sentence-editor{display:grid;gap:12px}.lesson-quiz-sentence-editor>div:first-child{display:grid;gap:2px}.lesson-quiz-sentence-editor>div:first-child>span{color:var(--ds-ink);font-size:13px;font-weight:750}.lesson-quiz-sentence-editor>div:first-child>small{color:var(--ds-muted);font-size:11px}.lesson-quiz-sentence-order{display:flex;flex-wrap:wrap;gap:8px;border:1px dashed var(--ds-accent-border);border-radius:16px;background:var(--ds-accent-soft);padding:12px}.lesson-quiz-sentence-order>div{display:inline-flex;align-items:center;min-height:38px;border:1px solid var(--ds-line);border-radius:11px;background:var(--ds-bg)}.lesson-quiz-sentence-order strong{color:var(--ds-ink);font-size:12px;padding:0 5px}.lesson-quiz-sentence-order button{display:grid;place-items:center;width:34px;height:36px;border:0;background:transparent;color:var(--ds-muted);cursor:pointer}.lesson-quiz-sentence-order button:disabled{opacity:.3;cursor:default}.quiz-intro-page,.quiz-play-page,.quiz-result-page{min-height:100dvh;overflow-x:clip;background:radial-gradient(circle at 15% -5%,rgba(107,90,237,.17),transparent 34%),linear-gradient(180deg,#f5f3ff,#f7f8fb 50%,#f3f5f7);color:#17202a}body:has(.quiz-intro-page),body:has(.quiz-play-page),body:has(.quiz-result-page){background:#f4f5f8}.quiz-intro-page,.quiz-result-page{display:grid;place-items:center;padding:28px 18px}.quiz-intro-card,.quiz-public-state,.quiz-result-card{width:min(620px,100%);border:1px solid rgba(26,32,44,.08);border-radius:32px;background:rgba(255,255,255,.96);box-shadow:0 28px 80px rgba(43,35,92,.12)}.quiz-intro-card{display:grid;gap:22px;padding:clamp(24px,5vw,40px)}.quiz-intro-brand{display:flex;align-items:center;gap:9px;color:#5144b3;font-size:14px;font-weight:850}.quiz-intro-brand>span{display:grid;place-items:center;width:32px;height:32px;border-radius:11px;background:#6b5aed;color:white}.quiz-intro-copy{display:grid;gap:10px}.quiz-intro-eyebrow{color:#6b5aed;font-size:11px;font-weight:900;letter-spacing:.09em;text-transform:uppercase}.quiz-intro-copy h1,.quiz-result-card h1{margin:0;color:#17202a;font-size:clamp(34px,7vw,52px);font-weight:750;letter-spacing:-.055em;line-height:1.03}.quiz-intro-copy p,.quiz-result-card>p{margin:0;color:#667085;font-size:15px;line-height:1.55}.quiz-intro-metrics{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:9px}.quiz-intro-metrics>div{display:flex;align-items:flex-start;gap:8px;min-width:0;border-radius:16px;background:#f7f7fb;color:#6b5aed;padding:12px}.quiz-intro-metrics>div>span{display:grid;gap:2px;min-width:0}.quiz-intro-metrics strong{overflow:hidden;color:#273142;font-size:12px;line-height:1.25;text-overflow:ellipsis;white-space:nowrap}.quiz-intro-metrics small{color:#8b93a3;font-size:10px;line-height:1.25}.quiz-intro-name{display:grid;gap:7px}.quiz-intro-name>span{color:#667085;font-size:11px;font-weight:850;letter-spacing:.06em;text-transform:uppercase}.quiz-intro-name input,.quiz-play-textarea{width:100%;min-height:50px;border:2px solid #e5e7eb;border-radius:16px;outline:0;background:white;color:#17202a;font:inherit;font-size:16px;font-weight:650;line-height:1.45;padding:12px 14px;transition:border-color .15s ease,box-shadow .15s ease}.quiz-intro-name input:focus,.quiz-play-textarea:focus{border-color:#6b5aed;box-shadow:0 0 0 4px rgba(107,90,237,.12)}.quiz-intro-note,.quiz-result-feedback,.quiz-result-review{display:grid;gap:5px;border-radius:16px;background:#f7f7fb;padding:13px 15px}.quiz-intro-note strong,.quiz-result-review strong{color:#273142;font-size:12px}.quiz-intro-note p,.quiz-result-feedback p{margin:0;color:#667085;font-size:12px;line-height:1.45}.quiz-intro-status{margin:-8px 0 0;color:#c8372d;font-size:13px;font-weight:700}.quiz-intro-start,.quiz-play-primary{min-height:52px;border:0;border-radius:16px;background:#6b5aed;color:white;box-shadow:0 6px 0 #4c3cab;font-size:15px;font-weight:850}.quiz-intro-start:hover,.quiz-play-primary:hover{background:#5f4fe2;transform:translateY(-1px)}.quiz-intro-start:active,.quiz-play-primary:active{box-shadow:0 2px 0 #4c3cab;transform:translateY(3px)}.quiz-intro-save-note,.quiz-result-note{color:#98a0ae;font-size:11px;text-align:center}.quiz-play-page{display:grid;grid-template-rows:auto minmax(0,1fr) auto;padding-bottom:132px}.quiz-play-header{display:grid;grid-template-columns:44px minmax(0,1fr) auto;gap:14px;align-items:center;width:min(860px,calc(100% - 32px));margin:0 auto;padding:22px 0 12px}.quiz-play-close{display:grid;place-items:center;width:44px;height:44px;border:0;border-radius:14px;background:rgba(255,255,255,.8);color:#8b93a3}.quiz-play-progress{height:14px;overflow:hidden;border-radius:99px;background:#e5e7ec;box-shadow:inset 0 1px 2px rgba(26,32,44,.06)}.quiz-play-progress span{display:block;height:100%;border-radius:inherit;background:linear-gradient(90deg,#6b5aed,#8b7ff2);transition:width .32s cubic-bezier(.2,.8,.2,1)}.quiz-play-score{display:flex;gap:8px}.quiz-play-score span{display:inline-flex;align-items:center;gap:4px;min-height:36px;border-radius:12px;background:rgba(255,255,255,.82);color:#6b5aed;font-size:13px;font-weight:850;padding:0 9px}.quiz-play-score span:last-child{color:#e07a14}.quiz-play-stage{display:grid;align-content:center;gap:24px;width:min(720px,calc(100% - 36px));margin:0 auto;padding:34px 0 58px;animation:quiz-question-in .28s ease both}.quiz-play-question-meta{display:flex;align-items:center;justify-content:space-between;gap:12px}.quiz-play-question-meta>span{color:#6b5aed;font-size:12px;font-weight:900;letter-spacing:.07em;text-transform:uppercase}.quiz-play-question-meta small{border-radius:99px;background:rgba(255,255,255,.82);color:#667085;font-size:11px;font-weight:800;padding:7px 10px}.quiz-play-stage h1{margin:0;color:#17202a;font-size:clamp(27px,4.6vw,43px);font-weight:750;letter-spacing:-.045em;line-height:1.14}.quiz-play-options{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.quiz-play-option{display:grid;grid-template-columns:34px minmax(0,1fr);gap:12px;align-items:center;min-height:74px;border:solid #e1e4e9;border-width:2px 2px 5px;border-radius:18px;background:rgba(255,255,255,.9);color:#273142;cursor:pointer;padding:13px 15px 10px;transition:border-color .15s ease,background .15s ease,transform .15s ease}.quiz-play-option:hover{border-color:#cfc8ff;transform:translateY(-1px)}.quiz-play-option.is-selected{border-color:#6b5aed;background:#f0edff;color:#4c3cab}.quiz-play-option.is-correct{border-color:#2ba84a;background:#eaf8ee;color:#167236}.quiz-play-option.is-wrong{border-color:#d94a42;background:#fff0ee;color:#a82c24}.quiz-play-option input{position:absolute;opacity:0;pointer-events:none}.quiz-play-option-key{display:grid;place-items:center;width:34px;height:34px;border:2px solid;border-radius:11px;color:#98a0ae;font-size:13px;font-weight:900}.quiz-play-option.is-correct .quiz-play-option-key,.quiz-play-option.is-selected .quiz-play-option-key,.quiz-play-option.is-wrong .quiz-play-option-key{color:inherit}.quiz-play-option strong{font-size:15px;line-height:1.4}.quiz-play-textarea{min-height:180px;border-bottom-width:5px;padding:16px;resize:vertical}.quiz-play-footer{position:fixed;right:0;bottom:0;left:0;z-index:20;display:grid;grid-template-columns:minmax(0,1fr) auto;gap:22px;align-items:center;min-height:112px;border-top:1px solid rgba(26,32,44,.08);background:rgba(255,255,255,.92);box-shadow:0 -18px 50px rgba(26,32,44,.08);padding:18px max(24px,calc((100vw - 820px) / 2)) max(18px,env(safe-area-inset-bottom));backdrop-filter:blur(18px)}.quiz-play-footer.is-correct{border-color:#bce5c8;background:rgba(234,248,238,.96)}.quiz-play-footer.is-wrong{border-color:#f0cbc6;background:rgba(255,240,238,.96)}.quiz-play-footer.is-saved{border-color:#d9d4fb;background:rgba(243,241,255,.96)}.quiz-play-feedback{display:flex;align-items:center;gap:12px;min-width:0}.quiz-play-feedback>span{display:grid;place-items:center;width:46px;height:46px;flex:0 0 auto;border-radius:50%;background:white;color:#6b5aed}.quiz-play-footer.is-correct .quiz-play-feedback>span{color:#2ba84a}.quiz-play-footer.is-wrong .quiz-play-feedback>span{color:#c8372d}.quiz-play-feedback>div{display:grid;gap:3px;min-width:0}.quiz-play-feedback strong{color:#273142;font-size:16px}.quiz-play-feedback p{margin:0;color:#667085;font-size:12px;line-height:1.4}.quiz-play-correction{color:#8f2e27!important;font-weight:750}.quiz-play-feedback-note{color:#667085;font-size:11px;font-weight:650}.quiz-sentence-builder{display:grid;gap:18px}.quiz-sentence-answer{display:flex;flex-wrap:wrap;align-content:flex-start;gap:9px;min-height:112px;border:2px dashed #cfd3dc;border-radius:20px;background:rgba(255,255,255,.68);padding:16px}.quiz-sentence-answer.has-words{border-style:solid;border-color:#cfc8ff;background:#f7f5ff}.quiz-sentence-answer>span{align-self:center;width:100%;color:#7b8493;font-size:14px;text-align:center}.quiz-sentence-bank{display:flex;flex-wrap:wrap;gap:9px}.quiz-sentence-token{min-height:46px;border:solid #dfe2e8;border-width:2px 2px 4px;border-radius:13px;background:white;color:#273142;cursor:pointer;font:inherit;font-size:15px;font-weight:750;padding:9px 14px 7px;transition:border-color .15s ease,transform .15s ease}.quiz-sentence-token:hover:not(:disabled){border-color:#aa9ff6;transform:translateY(-1px)}.quiz-sentence-token.is-selected{border-color:#8b7ff2;background:#efecff;color:#4c3cab}.quiz-sentence-token:disabled{cursor:default}.quiz-sentence-reset{display:inline-flex;align-items:center;justify-self:start;gap:6px;min-height:44px;border:0;background:transparent;color:#6b5aed;cursor:pointer;font:inherit;font-size:13px;font-weight:800;padding:0}.quiz-play-primary{min-width:164px}.quiz-result-card{position:relative;display:grid;gap:18px;justify-items:center;overflow:hidden;padding:clamp(28px,6vw,46px);text-align:center}.quiz-result-icon{display:grid;place-items:center;width:76px;height:76px;border-radius:24px;background:linear-gradient(145deg,#6b5aed,#8b7ff2);color:white;box-shadow:0 15px 32px rgba(107,90,237,.25)}.quiz-public-state:not(.is-error) svg,.quiz-result-icon .lucide-loader-2{animation:ds-spin .9s linear infinite}.quiz-analysis-steps{display:grid;gap:9px;width:min(380px,100%);text-align:left}.quiz-analysis-steps span{display:flex;align-items:center;gap:9px;min-height:44px;border:1px solid #e5e7eb;border-radius:14px;background:rgba(255,255,255,.72);color:#7b8493;font-size:13px;font-weight:750;padding:9px 12px}.quiz-analysis-steps span.is-active{border-color:#cfc8ff;background:#f0edff;color:#5748c7}.quiz-analysis-steps span.is-active svg{animation:quiz-analysis-pulse 1.2s ease-in-out infinite}.quiz-result-score{color:#4c3cab;font-size:clamp(70px,17vw,112px);font-weight:800;letter-spacing:-.08em;line-height:.95}.quiz-result-stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:9px;width:100%}.quiz-result-stats>div{display:grid;gap:3px;justify-items:center;border-radius:16px;background:#f7f7fb;color:#6b5aed;padding:13px 8px}.quiz-result-stats strong{color:#273142;font-size:14px}.quiz-result-stats small{color:#8b93a3;font-size:10px}.quiz-result-feedback,.quiz-result-review{width:100%;text-align:left}.quiz-result-feedback{grid-template-columns:auto minmax(0,1fr);align-items:center;color:#6b5aed}.quiz-result-review>div{display:flex;flex-wrap:wrap;gap:6px}.quiz-result-review span{border-radius:99px;background:white;color:#6b5aed;font-size:11px;font-weight:800;padding:6px 9px}.quiz-result-celebration span{position:absolute;width:10px;height:18px;border-radius:4px;background:#6b5aed;animation:quiz-confetti .9s ease-out both}.quiz-result-celebration span:first-child{top:8%;left:14%;transform:rotate(22deg)}.quiz-result-celebration span:nth-child(2){top:15%;right:12%;background:#f2a33b;transform:rotate(-28deg);animation-delay:90ms}.quiz-result-celebration span:nth-child(3){top:42%;left:5%;background:#2ba84a;transform:rotate(-18deg);animation-delay:.14s}.quiz-result-celebration span:nth-child(4){top:48%;right:5%;background:#df5f9a;transform:rotate(31deg);animation-delay:.19s}.quiz-public-state{display:grid;gap:9px;justify-items:center;padding:36px;color:#6b5aed;text-align:center}.quiz-public-state.is-error{color:#c8372d}.quiz-public-state strong{color:#273142;font-size:19px}.quiz-public-state span{color:#667085;font-size:13px;line-height:1.45}@keyframes quiz-question-in{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@keyframes quiz-confetti{0%{opacity:0;transform:translateY(-24px) rotate(0)}to{opacity:1}}@keyframes quiz-analysis-pulse{50%{opacity:.45;transform:scale(.88)}}}@layer teachsystem-responsive{@media (max-width:980px){.quiz-builder-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}@media (max-width:720px){.homework-panel-header,.homework-question-heading,.homework-results-heading,.quiz-builder-footer{align-items:stretch;flex-direction:column}.homework-panel-header .lesson-quiz-actions{justify-content:flex-start}.quiz-builder{padding:0}.quiz-builder-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.homework-meta-editor,.quiz-control-link{grid-template-columns:1fr}.quiz-control-link{align-items:stretch}.homework-stats{grid-template-columns:repeat(2,minmax(0,1fr))}.quiz-play-options{grid-template-columns:1fr}.quiz-play-stage{align-content:start;padding-top:28px}.quiz-play-footer{grid-template-columns:1fr;gap:12px;max-height:52dvh;min-height:140px;overflow-y:auto;padding:14px 18px max(14px,env(safe-area-inset-bottom))}.quiz-play-primary{width:100%}.quiz-play-page{padding-bottom:172px}}@media (max-width:520px){.quiz-intro-page,.quiz-result-page{align-items:start;padding:0}.quiz-intro-card,.quiz-public-state,.quiz-result-card{min-height:100dvh;border:0;border-radius:0;box-shadow:none;padding:24px 18px max(28px,env(safe-area-inset-bottom))}.quiz-intro-metrics{grid-template-columns:1fr}.quiz-intro-metrics>div{align-items:center}.quiz-play-header{grid-template-columns:44px minmax(0,1fr);gap:10px;width:calc(100% - 24px);padding-top:12px}.quiz-play-close{width:44px;height:44px}.quiz-play-score{grid-column:1/-1;justify-content:flex-end;margin-top:-3px}.quiz-play-stage{width:calc(100% - 28px);gap:20px;padding-top:16px}.quiz-play-stage h1{font-size:clamp(25px,8vw,33px)}.quiz-play-option{min-height:68px}.quiz-play-feedback>span{width:38px;height:38px}.quiz-result-stats{grid-template-columns:1fr}.quiz-result-stats>div{grid-template-columns:auto auto minmax(0,1fr);align-items:center;justify-items:start;text-align:left}.quiz-builder-grid{grid-template-columns:1fr}.quiz-control-card{gap:14px;border-radius:18px;padding:16px}.quiz-control-actions,.quiz-control-link-actions{flex-direction:column;width:100%}.quiz-control-actions>*,.quiz-control-link-actions>*{width:100%;min-height:44px}.quiz-settings-summary{flex-wrap:wrap;margin-right:0;margin-left:0}.quiz-settings-summary>span{flex:0 1 auto}.homework-stats{grid-template-columns:1fr}}@media (prefers-reduced-motion:reduce){.quiz-play-stage,.quiz-public-state svg,.quiz-result-celebration span,.quiz-result-icon svg{animation:none!important}.quiz-play-option,.quiz-play-progress span{transition:none}}}@layer teachsystem-features{.ai-admin-shell{width:100%;min-height:100dvh;overflow-x:clip;background:var(--ds-bg-soft);color:var(--ds-ink);padding:32px 28px 72px}.ai-admin-shell *,.ai-admin-shell :after,.ai-admin-shell :before{min-width:0}.ai-admin-header,.ai-admin-prompt-workspace,.ai-admin-runs-view,.ai-admin-status,.ai-admin-view-tabs{width:min(100%,1400px);margin-right:auto;margin-left:auto}.ai-admin-header{display:flex;align-items:flex-start;justify-content:space-between;gap:28px;margin-bottom:22px}.ai-admin-header h1,.ai-admin-login-card h1{margin:0;font-size:clamp(38px,5vw,58px);font-weight:500;letter-spacing:-.055em;line-height:.98}.ai-admin-header p:not(.eyebrow){max-width:660px;margin:12px 0 0;color:var(--ds-muted);font-size:16px;line-height:1.5}.ai-admin-actions{display:flex;align-items:center;flex-wrap:wrap;justify-content:flex-end;gap:8px}.ai-admin-view-tabs{display:flex;gap:6px;margin-bottom:18px;border-bottom:1px solid var(--ds-line)}.ai-admin-view-tabs button{display:inline-flex;align-items:center;gap:8px;min-height:44px;margin-bottom:-1px;border:0;border-bottom:2px solid transparent;background:transparent;color:var(--ds-muted);cursor:pointer;font:inherit;font-size:14px;font-weight:650;padding:0 14px}.ai-admin-view-tabs button.is-active,.ai-admin-view-tabs button:hover{color:var(--ds-accent-ink)}.ai-admin-view-tabs button.is-active{border-bottom-color:var(--ds-accent)}.ai-admin-view-tabs button>span{display:inline-grid;min-width:22px;height:22px;place-items:center;border-radius:var(--ds-pill);background:var(--ds-bg-warm);color:var(--ds-muted);font-size:11px}.ai-admin-status{margin-top:0;margin-bottom:16px}.ai-admin-prompt-workspace{display:grid;grid-template-columns:250px minmax(0,1fr);align-items:start;gap:16px}.ai-admin-card,.ai-admin-login-card{border:1px solid var(--ds-line);border-radius:24px;background:var(--ds-bg);box-shadow:none}.ai-admin-card{min-width:0;padding:22px}.ai-admin-sidebar{position:sticky;top:20px;display:grid;gap:16px;max-height:calc(100dvh - 40px);overflow:auto;padding:16px}.ai-admin-card-heading,.ai-admin-editor-head,.ai-admin-runs-head,.ai-model-route-head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px}.ai-admin-card-heading>small{display:inline-grid;min-width:28px;height:28px;place-items:center;border-radius:var(--ds-pill);background:var(--ds-bg-soft);color:var(--ds-muted);font-size:12px}.ai-admin-shell .settings-title{display:inline-flex;align-items:center;gap:9px;color:var(--ds-ink-2);font-size:18px;font-weight:650}.ai-admin-section-heading>svg,.ai-admin-shell .settings-title svg{flex:0 0 auto;color:var(--ds-accent-ink)}.ai-admin-prompt-list{display:grid;gap:7px}.ai-admin-prompt-item{display:grid;gap:5px;width:100%;border:1px solid transparent;border-radius:15px;background:transparent;color:var(--ds-ink);cursor:pointer;font:inherit;padding:12px;text-align:left}.ai-admin-prompt-item:hover{background:var(--ds-bg-soft)}.ai-admin-prompt-item.is-active{border-color:var(--ds-accent-border);background:var(--ds-accent-soft);color:var(--ds-accent-ink)}.ai-admin-prompt-item strong{overflow-wrap:anywhere;font-size:14px;font-weight:650}.ai-admin-prompt-item code,.ai-admin-prompt-item small{overflow:hidden;color:var(--ds-muted);font-size:11px;text-overflow:ellipsis;white-space:nowrap}.ai-admin-editor{display:grid;gap:0;padding:0;overflow:hidden}.ai-admin-editor-head{padding:24px;border-bottom:1px solid var(--ds-line)}.ai-admin-editor-head p{max-width:720px;margin:8px 0 0;color:var(--ds-muted);font-size:14px;line-height:1.5}.ai-admin-version-badge{display:inline-flex;flex:0 0 auto;align-items:center;min-height:32px;border:1px solid var(--ds-line);border-radius:var(--ds-pill);background:var(--ds-bg-soft);color:var(--ds-muted);font-size:12px;font-weight:650;padding:0 12px;white-space:nowrap}.ai-admin-form{display:grid}.ai-admin-editor-section{display:grid;gap:16px;min-width:0;padding:24px;border-bottom:1px solid var(--ds-line)}.ai-admin-editor-section:last-child{border-bottom:0}.ai-admin-section-heading{display:flex;align-items:flex-start;gap:10px}.ai-admin-section-heading h2{margin:0;color:var(--ds-ink-2);font-size:16px;font-weight:650;letter-spacing:-.015em}.ai-admin-runs-head p,.ai-admin-section-heading p{margin:4px 0 0;color:var(--ds-muted);font-size:13px;line-height:1.45}.ai-admin-shell .settings-field{display:grid;gap:7px;width:100%;min-width:0;color:var(--ds-ink-2);font-size:13px;font-weight:650}.ai-admin-shell input,.ai-admin-shell select,.ai-admin-shell textarea{width:100%;min-width:0;border:1px solid var(--ds-line);border-radius:13px;outline:none;background:var(--ds-bg);color:var(--ds-ink);font:inherit;font-size:14px;transition:border-color .15s ease,box-shadow .15s ease}.ai-admin-shell input,.ai-admin-shell select{min-height:44px;padding:0 12px}.ai-admin-shell textarea{min-height:320px;padding:14px;line-height:1.55;resize:vertical}.ai-admin-shell input:focus,.ai-admin-shell select:focus,.ai-admin-shell textarea:focus{border-color:var(--ds-accent-border);box-shadow:0 0 0 3px color-mix(in srgb,var(--ds-accent) 12%,transparent)}.ai-admin-shell input:disabled,.ai-admin-shell select:disabled{background:var(--ds-bg-soft);color:var(--ds-muted);cursor:not-allowed}.ai-admin-generation-grid{display:grid;grid-template-columns:minmax(0,2fr) minmax(110px,.55fr) minmax(140px,.75fr);gap:12px}.ai-prompt-model-note{border:1px solid var(--ds-line);border-radius:14px;background:var(--ds-bg-soft);color:var(--ds-muted);font-size:13px;line-height:1.5;padding:12px 14px}.ai-admin-shell code,.ai-model-id-field input,.ai-model-id-field select{font-family:ui-monospace,SFMono-Regular,Consolas,Liberation Mono,monospace}.ai-model-route{display:grid;gap:16px;min-width:0;border:1px solid var(--ds-line);border-radius:18px;background:var(--ds-bg-soft);padding:16px}.ai-model-route-head>div{display:grid;gap:4px}.ai-model-route-head code{overflow-wrap:anywhere;color:var(--ds-ink-2);font-size:13px;font-weight:650}.ai-model-route-head span{color:var(--ds-muted);font-size:12px}.ai-model-route-head>span{flex:0 0 auto;border-radius:var(--ds-pill);background:var(--ds-bg);padding:6px 9px;font-weight:650}.ai-model-fields{display:grid;grid-template-columns:minmax(150px,.7fr) minmax(0,1.6fr) minmax(170px,.8fr);gap:12px}.ai-model-catalog-note{display:flex;align-items:center;justify-content:space-between;gap:16px;border:1px solid var(--ds-line);border-radius:14px;background:var(--ds-bg);padding:12px}.ai-model-catalog-note>div:first-child{display:grid;gap:3px}.ai-model-catalog-note strong{color:var(--ds-ink-2);font-size:12px;font-weight:650}.ai-model-catalog-note small,.ai-model-catalog-note span{color:var(--ds-muted);font-size:12px;line-height:1.4}.ai-model-catalog-note>div:last-child{display:flex;flex:0 0 auto;flex-wrap:wrap;justify-content:flex-end;gap:8px}.ai-model-route-options{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}.ai-model-toggle{display:flex;align-items:flex-start;gap:8px;min-width:0;border:1px solid var(--ds-line);border-radius:13px;background:var(--ds-bg);color:var(--ds-ink-2);cursor:pointer;font-size:12px;font-weight:600;line-height:1.35;padding:10px}.ai-model-toggle input{flex:0 0 auto;width:16px;min-width:16px;height:16px;min-height:16px;margin:0;accent-color:var(--ds-accent);box-shadow:none;padding:0}.ai-tool-editor{display:grid;gap:10px}.ai-tool-tags{display:flex;align-items:center;flex-wrap:wrap;gap:8px;min-height:50px;border:1px solid var(--ds-line);border-radius:14px;background:var(--ds-bg-soft);padding:9px}.ai-tool-chip{display:inline-flex;align-items:center;gap:6px;min-height:32px;max-width:100%;border:1px solid var(--ds-accent-border);border-radius:var(--ds-pill);background:var(--ds-accent-soft);color:var(--ds-accent-ink);cursor:pointer;font:inherit;font-size:12px;font-weight:650;overflow-wrap:anywhere;padding:0 10px}.ai-tool-empty{color:var(--ds-muted);font-size:13px}.ai-tool-select{max-width:300px}.ai-admin-form-actions,.ai-admin-test-row{display:flex;align-items:end;flex-wrap:wrap;gap:10px}.ai-admin-test-section{background:color-mix(in srgb,var(--ds-accent-soft) 36%,var(--ds-bg))}.ai-admin-test-row .settings-field{flex:1 1 320px}.ai-admin-runs-view{display:grid;gap:20px;padding:24px}.ai-admin-runs-head p{max-width:700px}.ai-admin-run-list{display:grid;gap:10px}.ai-admin-run-row{display:grid;grid-template-columns:minmax(0,1fr) auto auto;align-items:center;gap:22px;min-width:0;border:1px solid var(--ds-line);border-radius:16px;background:var(--ds-bg-soft);padding:16px}.ai-admin-run-main{display:grid;gap:5px;min-width:0}.ai-admin-run-main>div{display:flex;align-items:center;flex-wrap:wrap;gap:8px}.ai-admin-run-main strong{color:var(--ds-ink-2);font-size:14px;font-weight:650}.ai-admin-run-main code,.ai-admin-run-main>span{overflow-wrap:anywhere;color:var(--ds-muted);font-size:12px;line-height:1.4}.ai-admin-run-status{border-radius:var(--ds-pill);background:var(--ds-bg-warm);color:var(--ds-muted);font-size:10px;font-weight:700;padding:4px 7px;text-transform:uppercase}.ai-admin-run-status.is-completed,.ai-admin-run-status.is-success{background:var(--ds-success-soft);color:var(--ds-success)}.ai-admin-run-status.is-error,.ai-admin-run-status.is-failed{background:var(--ds-danger-soft);color:var(--ds-danger)}.ai-admin-run-metrics{display:flex;align-items:center;gap:8px}.ai-admin-run-metrics>span{display:grid;min-width:74px;gap:2px;border-left:1px solid var(--ds-line);color:var(--ds-muted);font-size:10px;padding-left:10px}.ai-admin-run-metrics strong{color:var(--ds-ink-2);font-size:13px;font-weight:650}.ai-admin-run-row time{color:var(--ds-muted);font-size:11px;white-space:nowrap}.ai-admin-empty{display:flex;align-items:center;justify-content:center;gap:8px;min-height:180px;color:var(--ds-muted);font-size:14px}.ai-run-error{color:var(--ds-danger)!important}.ai-admin-login-shell{display:grid;place-items:center;padding:24px}.ai-admin-login-card{display:grid;gap:18px;width:min(100%,480px);padding:30px}.ai-admin-login-card h1{font-size:clamp(36px,7vw,48px)}.ai-admin-login-card p{margin:0;color:var(--ds-muted);font-size:14px;line-height:1.55}.ai-admin-login-icon{display:inline-grid;width:48px;height:48px;place-items:center;border-radius:15px;background:var(--ds-accent-soft);color:var(--ds-accent-ink)}.ai-admin-login-form{display:grid;gap:14px}.ai-admin-back-link{color:var(--ds-muted);font-size:13px;font-weight:650;text-decoration:none}.ai-admin-back-link:hover{color:var(--ds-accent-ink)}.ai-admin-shell .ai-admin-profile-select{display:none}}@layer teachsystem-responsive{@media (max-width:1120px){.ai-model-fields{grid-template-columns:minmax(160px,.7fr) minmax(0,1.3fr)}.ai-model-fields .settings-field:last-child{grid-column:1/-1}.ai-admin-run-row{grid-template-columns:minmax(0,1fr) auto}.ai-admin-run-row time{grid-column:1/-1}}@media (max-width:960px){.ai-admin-prompt-workspace{grid-template-columns:minmax(0,1fr)}.ai-admin-sidebar{position:static;max-height:none;overflow:visible}.ai-admin-prompt-list,.ai-admin-sidebar .ai-admin-card-heading{display:none}.ai-admin-profile-select{display:grid}.ai-model-fields{grid-template-columns:repeat(2,minmax(0,1fr))}.ai-model-id-field{grid-column:1/-1;grid-row:2}.ai-model-fields .settings-field:last-child{grid-column:auto}.ai-admin-run-row{grid-template-columns:minmax(0,1fr);gap:14px}.ai-admin-run-row time{grid-column:auto}}@media (max-width:720px){.ai-admin-shell{padding:20px 14px 56px}.ai-admin-editor-head,.ai-admin-header,.ai-admin-runs-head{align-items:stretch;flex-direction:column}.ai-admin-actions{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));justify-content:stretch}.ai-admin-actions .button{width:100%}.ai-admin-card{border-radius:19px;padding:16px}.ai-admin-editor{padding:0}.ai-admin-editor-head,.ai-admin-editor-section{padding:18px 16px}.ai-admin-version-badge{align-self:flex-start;white-space:normal}.ai-admin-generation-grid,.ai-model-fields,.ai-model-route-options{grid-template-columns:minmax(0,1fr)}.ai-model-fields .settings-field:last-child,.ai-model-id-field{grid-column:auto;grid-row:auto}.ai-model-catalog-note{align-items:stretch;flex-direction:column}.ai-model-catalog-note>div:last-child{justify-content:flex-start}.ai-admin-form-actions,.ai-admin-test-row{align-items:stretch;flex-direction:column}.ai-admin-form-actions .button,.ai-admin-test-row .button{width:100%}.ai-admin-run-metrics{display:grid;grid-template-columns:repeat(2,minmax(0,1fr))}.ai-admin-run-metrics>span{min-width:0}}@media (max-width:420px){.ai-admin-header h1{font-size:40px}.ai-admin-view-tabs button{flex:1 1 0;justify-content:center;padding-inline:8px}.ai-admin-login-card{padding:22px}}}@layer teachsystem-polish{.student-page-head{margin-bottom:26px}.student-profile-hero{display:flex;align-items:flex-end;justify-content:space-between;gap:36px;padding:0 0 28px;border-bottom:1px solid var(--ds-line)}.student-profile-main{align-items:center;gap:16px}.student-profile-avatar{width:62px;height:62px;border-radius:18px;box-shadow:none;font-size:18px}.student-profile-copy{gap:5px}.student-profile-title{gap:12px}.student-profile-title h1{margin:0;font-size:clamp(34px,3.5vw,42px)}.student-contact-line{margin:0;color:var(--ds-muted);font-size:14px}.student-edit-link{width:fit-content;min-height:28px;border:0;border-radius:8px;background:transparent;padding:3px 7px;color:var(--ds-muted);font-size:12px;font-weight:600}.student-edit-link:hover{background:var(--ds-bg-soft);color:var(--ds-ink-2)}.student-meta-grid{display:flex;align-items:stretch;gap:0;min-width:min(100%,440px);margin:0;padding:0;border:0}.student-meta-grid>div{min-width:110px;border:0;border-left:1px solid var(--ds-line);border-radius:0;background:transparent;padding:2px 18px}.student-meta-grid dt{color:var(--ds-muted);font-size:11px;font-weight:500}.student-meta-grid dd{margin-top:5px;font-size:14px;font-weight:600}.student-profile-content{display:grid;grid-template-columns:minmax(0,1.65fr) minmax(260px,.75fr);gap:48px;margin-top:34px;padding-bottom:34px;border-bottom:1px solid var(--ds-line)}.student-ai-insight,.student-notes-panel{min-width:0}.student-ai-insight{padding:0}.student-notes-panel{align-self:start;gap:14px;border:0;border-radius:18px;background:var(--ds-bg-soft);padding:18px}.lesson-section-heading,.lesson-summary-heading,.student-section-heading{display:flex;align-items:center;justify-content:space-between;gap:18px}.lesson-section-heading h2,.lesson-summary-heading h2,.student-section-heading h2{margin:0;color:var(--ds-ink);font-size:21px;font-weight:500;letter-spacing:-.035em}.lesson-section-label,.student-section-label{display:block;margin-bottom:4px;color:var(--ds-muted);font-size:11px;font-weight:600;letter-spacing:.02em;text-transform:uppercase}.ask-ai-button{display:inline-flex;align-items:center;justify-content:center;gap:7px;min-height:34px;border:1px solid var(--ds-ink);border-radius:var(--ds-pill);background:var(--ds-ink);padding:0 13px;color:white;font-size:13px;font-weight:600}.ask-ai-button:hover{background:#2a2a2d}.student-insight-copy{display:grid;max-width:76ch;gap:12px;margin-top:20px}.student-insight-copy>a{width:fit-content;color:var(--ds-ink);font-size:18px;font-weight:600;line-height:1.3;text-decoration:none}.student-insight-copy>a:hover{text-decoration:underline;text-underline-offset:3px}.student-insight-copy p,.student-insight-empty,.student-notes-panel p{margin:0;color:var(--ds-muted);font-size:14px;line-height:1.62}.student-insight-copy ul{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:7px 22px;margin:2px 0 0;padding:14px 0 0 18px;border-top:1px solid var(--ds-line-2);color:var(--ds-ink-2);font-size:13px;line-height:1.45}.student-insight-empty{margin-top:20px}.student-summary-content{gap:18px}.student-insight-copy .student-summary-overview{color:var(--ds-ink-2);font-size:15px;line-height:1.65}.student-summary-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:10px}.student-summary-list{min-width:0;border:1px solid var(--ds-line-2);border-radius:14px;background:var(--ds-bg-soft);padding:14px}.student-summary-list h3{margin:0;color:var(--ds-ink);font-size:13px;font-weight:650}.student-insight-copy .student-summary-list ul{display:grid;grid-template-columns:1fr;gap:6px;margin:9px 0 0;border:0;padding:0 0 0 17px;color:var(--ds-muted);font-size:12px;line-height:1.5}.student-summary-meta{color:var(--ds-muted);font-size:11px}.student-summary-state{display:grid;justify-items:start;gap:7px;margin-top:20px;border:1px solid var(--ds-line-2);border-radius:14px;background:var(--ds-bg-soft);padding:16px}.student-summary-state strong{color:var(--ds-ink-2);font-size:14px}.student-summary-state p{margin:0;color:var(--ds-muted);font-size:13px;line-height:1.5}.student-summary-state.is-error{border-color:color-mix(in srgb,var(--ds-danger) 30%,var(--ds-line));background:var(--ds-danger-soft)}.student-lessons-panel{gap:14px;margin-top:30px;border:0;border-radius:0;padding:0}.student-lessons-panel .students-table-wrap{border:0;border-top:1px solid var(--ds-line);border-radius:0}.student-lessons-panel .students-table thead{background:transparent}.student-lessons-panel .students-table td,.student-lessons-panel .students-table th{padding-right:10px;padding-left:10px}.lesson-title-row h1{font-size:clamp(36px,4vw,48px)}.lesson-icon-danger,.lesson-subtle-action{min-height:32px;border-color:transparent;background:transparent;padding:0 9px;font-size:12px}.lesson-icon-danger:hover,.lesson-subtle-action:hover{background:var(--ds-bg-soft)}.lesson-subtle-action.is-primary{min-height:34px;border-color:var(--ds-accent-border);background:var(--ds-accent-soft)}.lesson-icon-danger{width:32px}.lesson-processing-compact{display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:11px;margin:0 0 14px;border-radius:14px;background:var(--ds-bg-soft);padding:10px 12px}.lesson-processing-compact-icon{display:grid;width:28px;height:28px;place-items:center;border-radius:50%;background:var(--ds-accent-soft);color:var(--ds-accent-ink)}.lesson-processing-compact-icon svg{animation:ds-spin .9s linear infinite}.lesson-processing-compact span,.lesson-processing-compact strong{display:block}.lesson-processing-compact strong{color:var(--ds-ink-2);font-size:13px;font-weight:600}.lesson-processing-compact div>span,.lesson-processing-compact small{color:var(--ds-muted);font-size:11px}.lesson-processing-compact.is-error{background:var(--ds-danger-soft)}.lesson-player-panel{min-height:64px;margin:0 0 18px;border-width:1px 0;border-radius:0;background:transparent;padding:12px 0}.lesson-custom-player{grid-template-columns:40px minmax(0,1fr);align-items:center;gap:12px}.lesson-custom-play{width:40px;height:40px;box-shadow:none}.lesson-custom-timeline{gap:4px;padding-top:0}.lesson-player-range{height:18px;border-radius:var(--ds-pill);background:linear-gradient(to right,var(--ds-accent) 0 var(--player-progress,0),#d8d4cb var(--player-progress,0) 100%);background-clip:content-box;padding:7px 0}.lesson-player-range::-webkit-slider-runnable-track{height:4px;background:transparent}.lesson-player-range::-moz-range-track{height:4px;border:0;border-radius:var(--ds-pill);background:#d8d4cb}.lesson-player-range::-moz-range-progress{height:4px;border-radius:var(--ds-pill);background:var(--ds-accent)}.lesson-player-range::-webkit-slider-thumb{width:14px;height:14px;margin-top:-5px;border-width:2px;box-shadow:0 1px 4px rgba(28,28,30,.18)}.lesson-player-times{font-size:11px;font-weight:500}.student-tabs{gap:22px;padding:0}.student-tab{min-height:40px;border-radius:0;padding:0 2px;font-size:13px;font-weight:600}.student-tab.is-active{border-bottom-color:var(--ds-ink);background:transparent;color:var(--ds-ink)}.lesson-overview{display:grid;gap:0}.lesson-summary-section{padding:30px 0 34px;border-bottom:1px solid var(--ds-line)}.lesson-summary-heading{margin-bottom:22px}.lesson-summary-section .ai-markdown{max-width:82ch;gap:10px}.lesson-summary-section .ai-markdown h3{font-size:18px;font-weight:600}.lesson-summary-section .ai-markdown p{color:var(--ds-muted);font-size:15px;line-height:1.65}.lesson-summary-section .ai-markdown ul{gap:6px}.lesson-summary-section .ai-markdown li{font-size:13px;line-height:1.5}.lesson-summary-section .ai-markdown li:before{top:8px;width:5px;height:5px;background:var(--ds-muted-2)}.lesson-overview-columns{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(320px,.9fr)}.lesson-overview-section{min-width:0;padding:28px 32px 8px 0}.lesson-overview-section+.lesson-overview-section{border-left:1px solid var(--ds-line);padding-right:0;padding-left:32px}.lesson-section-heading{margin-bottom:18px}.lesson-info-list{gap:0}.lesson-info-list div{grid-template-columns:130px minmax(0,1fr);gap:16px;padding:9px 0;border-bottom:1px solid var(--ds-line-2)}.lesson-info-list dd,.lesson-info-list dt{font-size:13px;font-weight:500}.lesson-overview-notes{margin-top:20px}.lesson-overview-notes>span{color:var(--ds-muted);font-size:12px}.lesson-overview-notes p{margin:6px 0 0;color:var(--ds-ink-2);font-size:13px;line-height:1.55}.lesson-chapter-list{gap:0}.lesson-chapter-list li{grid-template-columns:58px minmax(0,1fr);align-items:center;gap:10px;min-height:40px;border:0;border-bottom:1px solid var(--ds-line-2);border-radius:0;background:transparent;padding:7px 0}.lesson-chapter-time{justify-content:flex-start;width:auto;min-height:28px;border-radius:7px;background:transparent;padding:0 4px;color:var(--ds-accent-ink);font-size:12px;font-weight:600}.lesson-chapter-time:hover{background:var(--ds-accent-soft)}.lesson-chapter-list strong{font-size:13px;font-weight:500}[data-slot=dialog-content].app-dialog.ai-chat-modal{width:min(1040px,calc(100vw - 40px));max-width:1040px;height:min(760px,calc(100dvh - 40px));border-radius:24px}.ai-chat-header{align-items:center;padding:15px 20px}.ai-chat-header h2{font-size:18px;font-weight:600}.ai-chat-header .eyebrow{font-size:10px}.ai-chat-close{display:grid;width:34px;height:34px;place-items:center;border:1px solid var(--ds-line);border-radius:50%;background:transparent;color:var(--ds-muted)}.ai-chat-close:hover{background:var(--ds-bg-soft);color:var(--ds-ink)}.ai-chat-body{background:var(--ds-bg)}.ai-chat-body:has(>.ai-chat-state){grid-template-rows:1fr}.ai-chat-body>.ai-chat-state.is-error{align-self:center;justify-self:center;min-height:auto;border:0;background:transparent;padding:24px}.ai-chat-conversation-content{gap:22px;padding:24px 28px}.ai-chat-message-content{max-width:min(100%,760px);font-size:14px;line-height:1.55}.ai-chat-input{border-top:1px solid var(--ds-line);padding:10px 18px 14px}.ai-chat-input [data-slot=input-group]{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:end;border-color:var(--ds-line);border-radius:18px;box-shadow:none}.ai-chat-input textarea[data-slot=input-group-control]{min-height:48px;max-height:120px;padding:13px 14px;font-size:14px}.ai-chat-input-footer{align-self:end;border:0;padding:7px}.ai-chat-submit{width:34px;height:34px;min-height:34px;border-radius:50%;background:var(--ds-ink);color:white}.ai-chat-submit:hover{background:#2a2a2d}.lesson-quiz-panel.lesson-quiz-panel{gap:14px;border:0;border-radius:0;padding:28px 0 0}.lesson-quiz-title-row h2{font-size:24px}.lesson-quiz-empty{grid-template-columns:minmax(0,1fr) 92px auto;border:0;border-top:1px solid var(--ds-line);border-radius:0;background:transparent;padding:20px 0}.lesson-quiz-public-link,.lesson-quiz-result,.lesson-quiz-state{border-radius:14px;padding:12px 14px}.lesson-quiz-public-link{border-width:1px 0;border-radius:0;background:transparent}.lesson-quiz-question-details,.lesson-quiz-settings{border-top:1px solid var(--ds-line-2)}.lesson-quiz-question-details>summary,.lesson-quiz-settings>summary{width:fit-content;cursor:pointer;padding:10px 0;color:var(--ds-muted);font-size:12px;font-weight:600;list-style-position:inside}.lesson-quiz-meta{grid-template-columns:minmax(200px,.8fr) minmax(260px,1.2fr) auto;padding:4px 0 14px;border:0}.lesson-quiz-question-list{gap:0;border:1px solid var(--ds-line);border-radius:18px;overflow:hidden}.lesson-quiz-question{gap:12px;border:0;border-bottom:1px solid var(--ds-line);border-radius:0;padding:18px 20px}.lesson-quiz-question:last-child{border-bottom:0}.lesson-quiz-sequence,.lesson-quiz-skill,.lesson-quiz-type{min-height:22px;padding:0 7px;font-size:10px}.lesson-quiz-sequence{background:transparent;color:var(--ds-muted)}.lesson-quiz-option-editor{border:0;border-radius:10px;padding:6px 9px}.lesson-quiz-field textarea{min-height:42px}.lesson-quiz-question-actions{margin-top:-4px}.lesson-quiz-panel{box-shadow:none;padding:8px 0 0}.lesson-quiz-panel,.lesson-speaker-summary{border:0;border-radius:0;background:transparent}.lesson-speaker-summary{grid-template-columns:auto minmax(0,1fr) auto;gap:8px;border-bottom:1px solid var(--ds-line);padding:0 0 12px}.lesson-speaker-summary-label{color:var(--ds-muted);font-size:12px;font-weight:650}.lesson-speaker-chip-list{justify-content:flex-start;gap:5px}.lesson-speaker-chip{min-height:26px;border-color:var(--ds-line);background:var(--ds-bg);font-size:11px;font-weight:650;padding:0 9px}.lesson-speaker-summary .button{min-height:32px;padding:0 10px}.lesson-transcript-follow{position:absolute;z-index:2;right:24px;bottom:18px;border:1px solid var(--ds-accent-border);border-radius:var(--ds-pill);background:var(--ds-bg);box-shadow:0 8px 20px rgba(28,28,30,.12);color:var(--ds-accent-ink);font:inherit;font-size:12px;font-weight:650;padding:8px 11px}.lesson-transcript-panel{position:relative}.lesson-transcript-row.lesson-transcript-row{border-color:transparent;border-bottom-color:var(--ds-line-2);border-radius:0;padding:14px 4px}}@layer teachsystem-polish{.lesson-transcript-row.lesson-transcript-row:focus-within,.lesson-transcript-row.lesson-transcript-row:hover{border-color:transparent;border-bottom-color:var(--ds-line-2);background:transparent}.lesson-transcript-row.lesson-transcript-row.is-playing{border-bottom-color:var(--ds-accent-border);background:linear-gradient(90deg,var(--ds-accent-soft),transparent 82%)}.lesson-transcript-row.is-playing .lesson-transcript-seek{border-color:var(--ds-accent-border);background:var(--ds-bg)}@media (max-width:700px){.lesson-transcript-panel.lesson-transcript-panel{height:clamp(440px,calc(100dvh - 270px),620px);gap:14px;padding:22px 18px}.lesson-speaker-summary{grid-template-columns:auto minmax(0,1fr) auto;align-items:center;padding-bottom:10px}.lesson-speaker-summary-label{font-size:11px}.lesson-speaker-chip-list{flex-wrap:nowrap;overflow:hidden}.lesson-speaker-chip{flex:0 1 auto;max-width:104px}.lesson-speaker-summary .button{width:32px;min-width:32px;padding:0}.lesson-speaker-edit-label{display:none}.lesson-transcript-row.lesson-transcript-row{grid-template-columns:1fr;gap:8px;padding:12px 0}.lesson-transcript-seek{width:fit-content;min-height:26px;font-size:12px;padding:0 9px}.lesson-transcript-content{gap:2px}.lesson-transcript-content p{font-size:15px;line-height:1.45}.lesson-transcript-follow{right:18px;bottom:14px}}}@layer teachsystem-polish{@media (max-width:900px){.student-profile-hero{align-items:flex-start;flex-direction:column;gap:22px}.student-meta-grid{width:100%}.student-meta-grid>div:first-child{border-left:0;padding-left:0}.lesson-overview-columns,.student-profile-content{grid-template-columns:1fr;gap:0}.student-notes-panel{margin-top:28px}.lesson-overview-section,.lesson-overview-section+.lesson-overview-section{border-left:0;padding:26px 0 6px}.lesson-overview-section+.lesson-overview-section{border-top:1px solid var(--ds-line)}}@media (max-width:640px){.student-profile-hero{padding-bottom:22px}.student-profile-avatar{width:52px;height:52px;border-radius:16px;font-size:15px}.student-profile-title h1{font-size:34px}.student-profile-title{align-items:flex-start;flex-direction:column;gap:2px}.student-meta-grid{display:grid;grid-template-columns:1fr 1fr;row-gap:18px}.student-meta-grid>div{min-width:0;padding:0 14px}.student-meta-grid>div:nth-child(3){border-left:0;padding-left:0}.student-insight-copy ul{grid-template-columns:1fr}.lesson-summary-heading,.student-section-heading{align-items:flex-start;flex-direction:column}.lesson-processing-compact{grid-template-columns:auto minmax(0,1fr)}.lesson-processing-compact>small{display:none}.lesson-player-panel{grid-template-columns:minmax(0,1fr) auto;padding:10px 0}.lesson-custom-player{grid-template-columns:36px minmax(0,1fr)}.lesson-custom-play{width:36px;height:36px}.lesson-info-list div{grid-template-columns:1fr;gap:3px}[data-slot=dialog-content].app-dialog.ai-chat-modal{height:calc(100dvh - 16px);max-height:calc(100dvh - 16px);border-radius:22px 22px 0 0}.ai-chat-conversation-content{padding:18px 16px}.lesson-quiz-empty{grid-template-columns:1fr 78px}.lesson-quiz-empty>button{grid-column:1/-1;width:fit-content}.lesson-quiz-meta,.lesson-quiz-question-grid,.lesson-quiz-short-answer{grid-template-columns:1fr}.lesson-quiz-question{padding:16px 14px}}}@layer teachsystem-base{html{scroll-behavior:smooth;background:var(--ds-bg-soft)}body,html{min-width:320px}body{background:var(--ds-bg);color:var(--ds-ink-2);font-family:var(--ds-font);font-size:16px;line-height:1.55;text-rendering:optimizeLegibility}h1,h2,h3,h4,p{text-wrap:pretty}h1,h2,h3,h4{color:var(--ds-ink);font-weight:500;letter-spacing:-.035em}a,button,input,select,textarea{-webkit-tap-highlight-color:transparent}[tabindex]:focus-visible,a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid color-mix(in srgb,var(--ds-accent) 24%,transparent);outline-offset:3px}::selection{background:var(--ds-accent-soft);color:var(--ds-accent-ink)}}@layer teachsystem-components{.button,[data-slot=button]{min-height:44px;border-radius:var(--ds-pill);box-shadow:none;font-weight:600;letter-spacing:-.01em}.button:hover,[data-slot=button]:hover{box-shadow:none;transform:none}.button:active,[data-slot=button]:active{transform:translateY(1px)}.button-primary{border:1px solid var(--ds-accent-border);background:var(--ds-accent-soft);color:var(--ds-accent-ink)}.button-primary:hover{background:var(--ds-accent-hover)}.button-primary:after,.button-primary:before{display:none}.button-secondary{border:1px solid var(--ds-line);background:var(--ds-bg-warm);color:var(--ds-ink-2)}.button-secondary:hover{background:#e8e5dc}.button-danger{border-color:#f0cbc6;background:var(--ds-danger-soft);color:#a82c24}[data-slot=input],[data-slot=select-trigger],input:not([type=checkbox]):not([type=radio]):not([type=range]),select,textarea{min-height:46px;border:1px solid var(--ds-line);border-radius:var(--ds-radius-control);background:var(--ds-bg);box-shadow:none;color:var(--ds-ink-2)}textarea{min-height:112px;padding:12px 14px;resize:vertical}input::placeholder,textarea::placeholder{color:var(--ds-muted-2)}[data-slot=input]:focus,[data-slot=select-trigger]:focus,input:focus,select:focus,textarea:focus{border-color:var(--ds-accent-border);box-shadow:0 0 0 3px color-mix(in srgb,var(--ds-accent) 12%,transparent)}.eyebrow{margin:0 0 8px;color:var(--ds-accent-ink);font-size:12px;font-weight:700;letter-spacing:.12em;line-height:1.3;text-transform:uppercase}.ds-card{border:1px solid var(--ds-line);border-radius:var(--ds-radius-card);background:var(--ds-bg);padding:26px}.ds-card.is-soft{background:var(--ds-bg-soft)}.ds-card.is-accent{border-color:var(--ds-accent-border);background:var(--ds-accent-soft)}.ds-card.is-dark{border-color:var(--ds-ink);background:var(--ds-ink);color:#fff}.ds-card.is-dark h1,.ds-card.is-dark h2,.ds-card.is-dark h3{color:#fff}.ds-page-header,.page-header{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;margin:0 0 32px;padding:4px 0 0}.ds-page-heading h1,.page-header h1{margin:0;font-size:clamp(38px,4.2vw,56px);font-weight:500;letter-spacing:-.055em;line-height:.98}.ds-page-heading>p:last-child{max-width:640px;margin:14px 0 0;color:var(--ds-muted);font-size:17px}.ds-page-actions,.page-header-actions{display:flex;align-items:center;justify-content:flex-end;gap:10px}.ds-empty-state,.empty-table-state{display:flex;align-items:center;justify-content:center;gap:14px;min-height:150px;border:1px dashed var(--ds-line);border-radius:22px;background:var(--ds-bg-soft);padding:28px;color:var(--ds-muted);text-align:left}.ds-empty-state strong,.empty-table-state strong{display:block;color:var(--ds-ink-2);font-size:16px}.ds-empty-state p,.empty-table-state p{margin:4px 0 0}.ds-empty-icon{display:grid;flex:0 0 auto;width:44px;height:44px;place-items:center;border-radius:16px;background:var(--ds-accent-soft);color:var(--ds-accent-ink)}.ds-empty-action{margin-left:auto}.ds-async-state,.lesson-process-state{display:flex;align-items:flex-start;gap:12px;border:1px solid var(--ds-line);border-radius:18px;background:var(--ds-bg-soft);padding:16px 18px}.ds-async-state.is-progress,.lesson-process-state.is-processing,.lesson-process-state.processing{border-color:var(--ds-accent-border);background:var(--ds-accent-soft)}.ds-async-state.is-success{border-color:#cbe8d2;background:var(--ds-success-soft)}.ds-async-state.is-error,.lesson-process-state.failed,.lesson-process-state.is-failed{border-color:#f0cbc6;background:var(--ds-danger-soft)}.ds-async-state strong,.lesson-process-state strong{display:block;color:var(--ds-ink-2)}.ds-async-state p,.lesson-process-state span{margin:3px 0 0;color:var(--ds-muted)}.lesson-status,.lesson-status-chip,.status-badge{display:inline-flex;align-items:center;gap:6px;min-height:28px;border:1px solid var(--ds-line);border-radius:var(--ds-pill);background:var(--ds-bg-soft);padding:4px 10px;color:var(--ds-muted);font-size:12px;font-weight:600}.lesson-status-completed,.lesson-status-done,.status-active{border-color:#cbe8d2;background:var(--ds-success-soft);color:#237e3b}.lesson-status-processing,.lesson-status-progress{border-color:var(--ds-accent-border);background:var(--ds-accent-soft);color:var(--ds-accent-ink)}.inline-status{border:1px solid var(--ds-line);border-radius:16px;background:var(--ds-bg-soft);padding:12px 14px;color:var(--ds-muted)}.form-error{border-radius:14px;background:var(--ds-danger-soft);padding:10px 12px;color:#a82c24}.app-dialog,[data-slot=dialog-content].app-dialog{gap:22px;max-width:560px;border:1px solid var(--ds-line);border-radius:var(--ds-radius-dialog);background:var(--ds-bg);padding:28px;box-shadow:var(--ds-shadow-floating)}.app-dialog [data-slot=dialog-title]{font-size:26px;font-weight:500;letter-spacing:-.035em;line-height:1.1}.app-dialog [data-slot=dialog-description]{color:var(--ds-muted);font-size:15px;line-height:1.55}.toast-viewport{position:fixed;right:max(20px,env(safe-area-inset-right));bottom:max(20px,env(safe-area-inset-bottom));z-index:100;display:grid;width:min(390px,calc(100vw - 32px));gap:10px;pointer-events:none}.app-toast{display:grid;grid-template-columns:auto 1fr auto;align-items:start;gap:12px;border:1px solid var(--ds-line);border-radius:18px;background:color-mix(in srgb,var(--ds-bg) 96%,transparent);padding:15px 16px;box-shadow:var(--ds-shadow-floating);color:var(--ds-accent-ink);pointer-events:auto;backdrop-filter:blur(14px)}.app-toast.is-success{color:var(--ds-success)}.app-toast.is-error{color:var(--ds-danger)}.app-toast strong{display:block;margin-bottom:2px;color:var(--ds-ink-2)}.app-toast p{margin:0;color:var(--ds-muted);font-size:14px}.app-toast button{display:grid;width:30px;height:30px;place-items:center;border:0;border-radius:10px;background:transparent;color:var(--ds-muted)}.app-toast button:hover{background:var(--ds-bg-soft)}}@layer teachsystem-shell{.app-shell{display:grid;grid-template-columns:248px minmax(0,1fr);min-height:100dvh;background:var(--ds-bg);transition:grid-template-columns .18s ease}.app-shell.is-sidebar-collapsed{grid-template-columns:76px minmax(0,1fr)}.sidebar{position:sticky;top:0;z-index:20;display:flex;flex-direction:column;width:auto;height:100dvh;border-right:1px solid var(--ds-line);background:var(--ds-bg-soft);padding:22px 16px 16px;overflow:visible}.sidebar-head{display:flex;align-items:center;justify-content:space-between;min-height:42px;padding:0 4px}.brand{display:inline-flex;align-items:center;min-width:0;text-decoration:none}.icon-button,.sidebar-collapse{display:grid;flex:0 0 auto;width:38px;height:38px;place-items:center;border:0;border-radius:13px;background:transparent;color:var(--ds-muted)}.icon-button:hover,.sidebar-collapse:hover{background:var(--ds-bg-warm);color:var(--ds-ink-2)}.sidebar-nav{display:grid;gap:5px;margin-top:36px}.sidebar-link{display:flex;align-items:center;gap:12px;min-height:44px;border:0;border-radius:15px;background:transparent;padding:0 13px;color:var(--ds-muted);font-size:15px;font-weight:500;text-decoration:none}.sidebar-link:hover{background:var(--ds-bg-warm);color:var(--ds-ink-2)}.sidebar-link.is-active{background:var(--ds-accent-soft);color:var(--ds-accent-ink)}.sidebar-footer{display:grid;gap:14px;margin-top:auto}.sidebar-upload-button{width:100%}.sidebar-profile{position:relative}.sidebar-profile-trigger{display:grid;grid-template-columns:36px minmax(0,1fr) auto;align-items:center;gap:10px;width:100%;border:0;border-radius:16px;background:transparent;padding:8px;text-align:left}.sidebar-profile-trigger:hover{background:var(--ds-bg-warm)}.profile-avatar{display:grid;width:36px;height:36px;place-items:center;border:1px solid var(--ds-accent-border);border-radius:13px;background:var(--ds-accent-soft);color:var(--ds-accent-ink);font-size:13px;font-weight:700}.profile-copy{display:grid;min-width:0}.profile-copy span,.profile-copy strong{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.profile-copy strong{color:var(--ds-ink-2);font-size:13px}.profile-copy span{color:var(--ds-muted);font-size:11px}.sidebar-profile-menu{position:absolute;right:0;bottom:calc(100% + 8px);left:0;z-index:30;display:grid;gap:4px;border:1px solid var(--ds-line);border-radius:18px;background:var(--ds-bg);padding:6px;box-shadow:var(--ds-shadow-floating)}.sidebar-profile-action{display:flex;align-items:center;gap:9px;min-height:40px;border:0;border-radius:12px;background:transparent;padding:0 10px;color:var(--ds-ink-2);font-size:14px;text-decoration:none}.sidebar-profile-action:hover{background:var(--ds-bg-soft)}.app-shell.is-sidebar-collapsed .brand,.app-shell.is-sidebar-collapsed .profile-chevron,.app-shell.is-sidebar-collapsed .profile-copy,.app-shell.is-sidebar-collapsed .sidebar-link span,.app-shell.is-sidebar-collapsed .sidebar-upload-button span{display:none}.app-shell.is-sidebar-collapsed .sidebar-head,.app-shell.is-sidebar-collapsed .sidebar-link,.app-shell.is-sidebar-collapsed .sidebar-profile-trigger,.app-shell.is-sidebar-collapsed .sidebar-upload-button{justify-content:center}.app-shell.is-sidebar-collapsed .sidebar-profile-trigger{display:flex}.app-shell.is-sidebar-collapsed .sidebar-profile-menu{right:auto;bottom:0;left:calc(100% + 12px);width:190px}.workspace{min-width:0;min-height:100dvh;background:var(--ds-bg);padding:46px var(--ds-gutter) 72px}.email-verification-banner{display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:14px;width:min(100%,var(--ds-container));margin:0 auto 22px;border:1px solid var(--ds-accent-border);border-radius:18px;background:var(--ds-accent-soft);padding:14px 16px;color:var(--ds-accent-ink)}.email-verification-banner>svg{align-self:start;margin-top:2px}.email-verification-banner strong{display:block;margin-bottom:2px;color:var(--ds-ink-2)}.email-verification-banner p{margin:0;color:var(--ds-muted);font-size:13px;line-height:1.45}.content{width:min(100%,var(--ds-container));margin:0 auto;padding:0}.mobile-navigation{display:none}.app-session-state{display:grid;min-height:100dvh;place-content:center;justify-items:center;gap:14px;background:var(--ds-bg-soft);color:var(--ds-muted)}.app-session-spinner{width:28px;height:28px;border:3px solid var(--ds-accent-border);border-top-color:var(--ds-accent);border-radius:50%;animation:ds-spin .8s linear infinite}@keyframes ds-spin{to{transform:rotate(1turn)}}}@layer teachsystem-features{.auth-page{display:grid;min-height:100dvh;place-items:center;background:var(--ds-bg-soft);padding:32px}.auth-layout{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(390px,.95fr);width:min(100%,1000px);min-height:650px;border:1px solid var(--ds-line);border-radius:var(--ds-radius-large);background:var(--ds-bg);overflow:hidden}.auth-story{display:flex;flex-direction:column;justify-content:space-between;gap:40px;background:var(--ds-ink);padding:42px;color:#fff}.auth-story .logo-main{color:#fff}.auth-story .eyebrow,.auth-story .logo-sub{color:#bcb2ff}.auth-story h2{max-width:470px;margin:0;color:#fff;font-size:clamp(42px,5vw,64px);font-weight:500;letter-spacing:-.06em;line-height:.98}.auth-story>div>p:last-child{max-width:430px;margin:24px 0 0;color:#a7a7aa;font-size:16px}.auth-story ul{display:flex;flex-wrap:wrap;gap:8px;margin:0;padding:0;list-style:none}.auth-story li{display:inline-flex;align-items:center;gap:7px;border:1px solid rgba(221,214,255,.2);border-radius:var(--ds-pill);background:rgba(238,235,255,.08);padding:7px 10px;color:#ded9ff;font-size:12px}.auth-panel{align-self:center;display:grid;gap:18px;width:100%;max-width:470px;border:0;border-radius:0;background:transparent;padding:48px;box-shadow:none}.auth-mobile-logo{display:none}.auth-panel__header{gap:8px;margin-bottom:8px}.auth-panel__header h1{margin:0;font-size:clamp(36px,4vw,48px);font-weight:500;letter-spacing:-.055em}.auth-panel__header>p:last-child{margin:4px 0 0;color:var(--ds-muted)}.auth-panel .field{gap:7px;font-weight:600}.field-label-row{display:flex;align-items:center;justify-content:space-between;gap:12px}.field-label-row a{color:var(--ds-accent-ink);font-size:13px;font-weight:500;text-decoration:none}.field-label-row a:hover{text-decoration:underline}.auth-submit{width:100%;margin-top:4px}.auth-message{border-radius:14px;background:var(--ds-danger-soft);padding:10px 12px;color:#a82c24}.auth-message.is-success{background:color-mix(in srgb,var(--ds-success) 10%,white);color:var(--ds-success)}.auth-result{display:grid;gap:7px;border:1px solid color-mix(in srgb,var(--ds-success) 24%,var(--ds-line));border-radius:16px;background:color-mix(in srgb,var(--ds-success) 7%,white);padding:16px}.auth-result.is-error{border-color:color-mix(in srgb,var(--ds-danger) 24%,var(--ds-line));background:var(--ds-danger-soft)}.auth-result p,.auth-result strong{margin:0}.auth-result p{color:var(--ds-muted);font-size:14px;line-height:1.5}.auth-result .text-link{color:var(--ds-accent-ink);font-size:14px}.auth-switch{margin:2px 0 0;color:var(--ds-muted);font-size:14px;text-align:center}.auth-switch .text-link{color:var(--ds-accent-ink)}.settings-grid-redesigned{display:grid;grid-template-columns:.8fr 1.2fr;gap:16px}.settings-grid-redesigned .settings-card{padding:26px}.settings-recording-card{grid-column:1/-1}.settings-title{color:var(--ds-ink-2);font-size:18px;font-weight:600}.settings-title svg{color:var(--ds-accent-ink)}.settings-list div{border-color:var(--ds-line-2)}.settings-quota-value{display:flex;align-items:baseline;gap:9px;margin:22px 0 16px}.settings-quota-value strong{color:var(--ds-ink);font-size:48px;font-weight:500;letter-spacing:-.055em;line-height:1}.settings-quota-value span{color:var(--ds-muted)}.quota-meter{height:9px;border-radius:var(--ds-pill);background:var(--ds-bg-warm);overflow:hidden}.quota-meter>span{display:block;height:100%;border-radius:inherit;background:var(--ds-accent)}.settings-quota-skeleton{display:grid;gap:12px;margin-top:24px}.settings-workflow{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;margin:22px 0;padding:0;list-style:none}.settings-workflow li{display:grid;grid-template-columns:auto minmax(0,1fr);align-items:start;gap:11px;border-radius:18px;background:var(--ds-bg-soft);padding:16px}.settings-workflow li>span{display:grid;width:28px;height:28px;place-items:center;border-radius:10px;background:var(--ds-accent-soft);color:var(--ds-accent-ink);font-size:12px;font-weight:700}.settings-workflow strong{display:block;color:var(--ds-ink-2);font-size:14px}.settings-workflow p{margin:4px 0 0;color:var(--ds-muted);font-size:13px}.lesson-quiz-panel{display:grid;gap:18px}.lesson-quiz-title-row{align-items:flex-start}.lesson-quiz-title-row h2{font-size:30px}.lesson-quiz-subtitle{color:var(--ds-muted)}.lesson-quiz-empty,.lesson-quiz-meta,.lesson-quiz-public-link,.lesson-quiz-result,.lesson-quiz-state{border:1px solid var(--ds-line);border-radius:20px;background:var(--ds-bg-soft);padding:18px}.lesson-quiz-state.is-processing{border-color:var(--ds-accent-border);background:var(--ds-accent-soft)}.lesson-quiz-state.is-processing>svg{animation:ds-spin .9s linear infinite}.lesson-quiz-state.is-error{border-color:#f0cbc6;background:var(--ds-danger-soft)}.lesson-quiz-public-link{border-color:var(--ds-accent-border);background:var(--ds-accent-soft)}.lesson-quiz-question-list{display:grid;gap:12px}.lesson-quiz-question{border:1px solid var(--ds-line);border-radius:22px;background:var(--ds-bg);padding:20px}.lesson-quiz-option-editor{border:1px solid var(--ds-line);border-radius:16px;background:var(--ds-bg-soft)}.lesson-quiz-result{background:var(--ds-bg)}.lesson-quiz-score{color:var(--ds-accent-ink);font-weight:500}.public-quiz-page{width:min(100%,var(--ds-container-narrow));min-height:100dvh;margin:0 auto;background:var(--ds-bg-soft);padding:40px 16px 150px}body:has(.public-quiz-page){background:var(--ds-bg-soft)}.public-quiz-card{border-radius:var(--ds-radius-card);padding:28px}.public-quiz-hero{display:grid;grid-template-columns:minmax(0,1fr) 170px;gap:28px;border-color:var(--ds-accent-border);background:var(--ds-accent-soft)}.public-quiz-head h1{font-size:clamp(38px,7vw,62px);font-weight:500;letter-spacing:-.06em;line-height:.98}.public-quiz-meta span,.public-quiz-question-head small,.public-quiz-question-head span{border:1px solid var(--ds-line);border-radius:var(--ds-pill);background:rgba(255,255,255,.7);color:var(--ds-muted)}.public-quiz-progress-card{border-radius:22px;background:rgba(255,255,255,.72)}.public-quiz-jump-list button,.public-quiz-progress-track{background:var(--ds-bg-warm)}.public-quiz-jump-list button.is-answered,.public-quiz-progress-track span{background:var(--ds-accent)}.public-quiz-question{border-color:var(--ds-line-2)}.public-quiz-question.is-answered{background:color-mix(in srgb,var(--ds-accent-soft) 48%,white)}.public-quiz-question h2{font-size:clamp(21px,3vw,27px);font-weight:500;letter-spacing:-.035em}.public-quiz-option{min-height:58px;border:1px solid var(--ds-line);border-radius:18px;background:var(--ds-bg-soft)}.public-quiz-option.is-selected,.public-quiz-option:hover{border-color:var(--ds-accent-border);background:var(--ds-accent-soft)}.public-quiz-option-mark{border-color:var(--ds-line);background:var(--ds-bg);color:var(--ds-muted)}.public-quiz-option.is-selected .public-quiz-option-mark{border-color:var(--ds-accent);background:var(--ds-accent)}.public-quiz-submit{bottom:16px;width:min(calc(100% - 32px),var(--ds-container-narrow));border:1px solid var(--ds-line);border-radius:22px;background:color-mix(in srgb,var(--ds-bg) 94%,transparent);box-shadow:var(--ds-shadow-floating);backdrop-filter:blur(16px)}.public-quiz-result,.public-quiz-submit.is-ready{border-color:var(--ds-accent-border)}.public-quiz-result{min-height:420px;align-content:center;background:var(--ds-accent-soft);text-align:center}.public-quiz-score{color:var(--ds-accent-ink);font-size:clamp(64px,14vw,104px);font-weight:500;letter-spacing:-.07em}.download-page{min-height:100dvh;background:var(--ds-bg-soft);padding:28px var(--ds-gutter) 70px}.download-grid,.download-hero,.download-nav,.download-note{width:min(100%,var(--ds-container));max-width:var(--ds-container);margin-right:auto;margin-left:auto}.download-nav{border-bottom:0}.download-hero{margin-top:96px;margin-bottom:42px;text-align:center}.download-hero h1{max-width:920px;margin:0 auto;font-size:clamp(48px,8vw,88px);font-weight:500;letter-spacing:-.065em;line-height:.94}.download-hero p{max-width:660px;margin:26px auto 0;color:var(--ds-muted);font-size:18px}.download-card{min-height:270px;align-content:space-between;border-radius:var(--ds-radius-card);padding:26px}.download-card-icon{background:var(--ds-accent-soft);color:var(--ds-accent-ink)}.download-note{border-radius:22px;background:var(--ds-bg)}.center-page:has(.desktop-connect-panel){background:var(--ds-bg-soft);padding:24px}.desktop-connect-panel{border-radius:var(--ds-radius-large);padding:48px;box-shadow:none}.desktop-connect-panel h1{font-size:clamp(38px,6vw,58px);font-weight:500;letter-spacing:-.055em}.desktop-code{border-color:var(--ds-accent-border);border-radius:18px;background:var(--ds-accent-soft);color:var(--ds-accent-ink);font-weight:600}.dashboard-metrics{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-bottom:18px}.dashboard-metric{position:relative;display:grid;grid-template-columns:auto 1fr auto;align-items:center;min-height:156px;border:1px solid var(--ds-line);border-radius:24px;background:var(--ds-bg-soft);padding:22px;color:var(--ds-ink-2);text-decoration:none;transition:border-color .15s ease,background-color .15s ease,transform .15s ease}a.dashboard-metric:hover{border-color:var(--ds-accent-border);background:var(--ds-accent-soft);transform:translateY(-2px)}.dashboard-metric-icon{display:grid;width:40px;height:40px;place-items:center;border-radius:14px;background:var(--ds-bg-warm);color:var(--ds-accent-ink)}.dashboard-metric-label{margin-left:11px;color:var(--ds-muted);font-size:13px;line-height:1.3}.dashboard-metric strong{grid-column:1/-1;align-self:end;margin-top:18px;color:var(--ds-ink);font-size:42px;font-weight:500;letter-spacing:-.055em;line-height:.95}.dashboard-metric strong small{margin-left:7px;color:var(--ds-muted);font-size:13px;font-weight:500;letter-spacing:0}.dashboard-metric-arrow{color:var(--ds-muted-2)}.dashboard-layout{display:grid;grid-template-columns:minmax(0,1.55fr) minmax(280px,.85fr);align-items:start;gap:18px}.dashboard-recent-card{min-width:0}.dashboard-section-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:20px}.dashboard-card-heading h2,.dashboard-section-heading h2{margin:0;font-size:25px;font-weight:500;letter-spacing:-.04em}.dashboard-section-heading>a{display:inline-flex;align-items:center;gap:6px;color:var(--ds-accent-ink);font-size:14px;font-weight:600;text-decoration:none}.dashboard-lesson-list{display:grid}.dashboard-lesson-row{display:grid;grid-template-columns:minmax(0,1fr) auto auto;align-items:center;gap:14px;border-top:1px solid var(--ds-line-2);padding:15px 2px;color:var(--ds-ink-2);text-decoration:none}.dashboard-lesson-row:hover strong{color:var(--ds-accent-ink)}.dashboard-lesson-row>div{display:grid;min-width:0;gap:3px}.dashboard-lesson-row strong,.dashboard-lesson-row>div>span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.dashboard-lesson-row strong{font-size:15px}.dashboard-lesson-row>div>span{color:var(--ds-muted);font-size:13px}.dashboard-lesson-row>svg{color:var(--ds-muted-2)}.dashboard-side-stack{display:grid;gap:18px}.dashboard-card-heading{display:flex;align-items:center;gap:12px;margin-bottom:20px}.dashboard-card-heading p{margin:3px 0 0;color:var(--ds-muted);font-size:13px}.dashboard-card-icon{display:grid;width:40px;height:40px;place-items:center;border-radius:14px;background:var(--ds-bg);color:var(--ds-accent-ink)}.dashboard-processing-list,.dashboard-upcoming-list{display:grid;gap:8px}.dashboard-processing-list a,.dashboard-upcoming-list a{display:grid;gap:2px;border-radius:14px;background:color-mix(in srgb,var(--ds-bg) 76%,transparent);padding:11px 12px;color:var(--ds-ink-2);text-decoration:none}.dashboard-processing-list a:hover,.dashboard-upcoming-list a:hover{background:var(--ds-bg)}.dashboard-processing-list span,.dashboard-upcoming-list strong{overflow:hidden;font-size:14px;text-overflow:ellipsis;white-space:nowrap}.dashboard-card-empty,.dashboard-processing-list small,.dashboard-upcoming-list span{color:var(--ds-muted);font-size:12px}.dashboard-card-empty{margin:0}.dashboard-skeleton-panel{display:block;min-height:390px;border-radius:var(--ds-radius-card)}.skeleton-card{border:0;background:linear-gradient(90deg,var(--ds-bg-soft),#faf9f6,var(--ds-bg-soft));background-size:200% 100%;animation:skeleton-shift 1.4s ease infinite}.stats-row{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-bottom:24px}.stat-block{min-height:126px;border:1px solid var(--ds-line);border-radius:22px;background:var(--ds-bg-soft);padding:20px}.stat-block span{color:var(--ds-muted);font-size:13px}.stat-block strong{display:block;margin-top:16px;color:var(--ds-ink);font-size:34px;font-weight:500;letter-spacing:-.045em;line-height:1}.ai-admin-card,.ai-overview-card,.desktop-connect-panel,.download-card,.download-note,.lesson-panel,.lesson-player-panel,.public-quiz-card,.settings-card,.student-lessons-panel,.students-section{border:1px solid var(--ds-line);border-radius:var(--ds-radius-card);background:var(--ds-bg);box-shadow:none}.student-lessons-panel,.students-section{padding:8px 22px 18px}.student-tabs,.tabs-row{border-color:var(--ds-line)}.student-tab,.tab-button{border-radius:12px;color:var(--ds-muted);font-weight:500}.student-tab.is-active,.tab-button.is-active{background:var(--ds-accent-soft);color:var(--ds-accent-ink)}.toolbar{gap:12px;padding:18px 0}.table-search{min-height:46px;border:1px solid var(--ds-line);border-radius:var(--ds-radius-control);background:var(--ds-bg-soft)}.table-search input{min-height:auto!important;border:0!important;background:transparent!important;box-shadow:none!important}.students-table-wrap{border:1px solid var(--ds-line);border-radius:20px;overflow:hidden}.students-table{border-collapse:collapse;background:var(--ds-bg)}.students-table thead{background:var(--ds-bg-soft)}.students-table th{color:var(--ds-muted);font-size:12px;font-weight:600;letter-spacing:.02em}.students-table td,.students-table th{border-color:var(--ds-line-2);padding:15px 14px}.students-table tbody tr:hover{background:color-mix(in srgb,var(--ds-bg-soft) 68%,white)}.student-avatar{border-radius:14px}.ghost-icon-button,.row-action{border:0;border-radius:12px;background:transparent;color:var(--ds-muted)}.ghost-icon-button:hover,.row-action:hover{background:var(--ds-bg-soft);color:var(--ds-ink-2)}.lesson-icon-danger:hover,.row-action-danger:hover{background:var(--ds-danger-soft);color:var(--ds-danger)}.lesson-topic-link,.student-cell-link,.table-text-action{color:var(--ds-ink-2);font-weight:600;text-underline-offset:3px}.lesson-topic-link:hover,.student-cell-link:hover,.table-text-action:hover{color:var(--ds-accent-ink)}.lesson-planner-modal{width:min(100%,590px);max-height:calc(100dvh - 48px);border:1px solid var(--ds-line);border-radius:var(--ds-radius-dialog);background:var(--ds-bg);padding:28px;box-shadow:var(--ds-shadow-floating);overflow-y:auto}.app-dialog-overlay{position:fixed;inset:0;z-index:70;background:rgba(10,10,10,.44);backdrop-filter:blur(5px)}.app-confirm-dialog{position:fixed;top:50%;left:50%;z-index:71;display:grid;width:min(calc(100% - 32px),520px);transform:translate(-50%,-50%)}.app-dialog-header{display:grid;gap:10px}.app-dialog-header>[data-radix-collection-item],.app-dialog-header>h2{margin:0}.app-dialog-header>:first-child{color:var(--ds-ink);font-size:26px;font-weight:500;letter-spacing:-.04em;line-height:1.08}.app-dialog-header>:last-child{margin:0;color:var(--ds-muted);font-size:15px}.app-dialog-footer{display:flex;justify-content:flex-end;gap:9px}.lesson-planner-modal h2{font-size:28px;font-weight:500}.lesson-page-head{align-items:flex-start;margin-bottom:18px}.lesson-title-row h1,.student-profile-title h1{font-size:clamp(36px,4.5vw,54px);font-weight:500;letter-spacing:-.055em;line-height:1}.lesson-meta-row{color:var(--ds-muted)}.lesson-icon-danger,.lesson-subtle-action{min-height:40px;border:1px solid var(--ds-line);border-radius:var(--ds-pill);background:var(--ds-bg-soft);color:var(--ds-ink-2)}.lesson-subtle-action.is-primary{border-color:var(--ds-accent-border);background:var(--ds-accent-soft);color:var(--ds-accent-ink)}.lesson-icon-danger{width:40px;padding:0}.lesson-processing-rail{margin-bottom:18px;border:1px solid var(--ds-accent-border);border-radius:var(--ds-radius-card);background:var(--ds-accent-soft);padding:22px}.lesson-processing-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:18px}.lesson-processing-heading h2{margin:0;font-size:25px;font-weight:500;letter-spacing:-.04em}.lesson-processing-heading>span{border:1px solid var(--ds-accent-border);border-radius:var(--ds-pill);background:rgba(255,255,255,.7);padding:5px 10px;color:var(--ds-accent-ink);font-size:12px;font-weight:600}.lesson-processing-steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px}.lesson-processing-step{display:grid;grid-template-columns:auto minmax(0,1fr);align-items:start;gap:9px;border:1px solid color-mix(in srgb,var(--ds-accent-border) 72%,transparent);border-radius:16px;background:rgba(255,255,255,.58);padding:12px}.lesson-processing-index{display:grid;width:26px;height:26px;place-items:center;border-radius:9px;background:var(--ds-bg-warm);color:var(--ds-muted);font-size:11px;font-weight:700}.lesson-processing-step.is-ready .lesson-processing-index{background:var(--ds-success-soft);color:var(--ds-success)}.lesson-processing-step.is-active .lesson-processing-index{background:var(--ds-accent);color:white}.lesson-processing-step.is-active .lesson-processing-index svg{animation:ds-spin .9s linear infinite}.lesson-processing-step.is-error .lesson-processing-index{background:var(--ds-danger-soft);color:var(--ds-danger)}.lesson-processing-step small,.lesson-processing-step strong{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.lesson-processing-step strong{color:var(--ds-ink-2);font-size:13px}.lesson-processing-step small{margin-top:2px;color:var(--ds-muted);font-size:11px}.lesson-processing-note{margin:13px 0 0;color:var(--ds-accent-ink);font-size:12px}.lesson-player-panel{margin-bottom:18px;padding:16px 18px}.lesson-custom-play{background:var(--ds-accent-soft);color:var(--ds-accent-ink)}.lesson-detail-grid{display:block}.lesson-detail-main{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.lesson-detail-main>.lesson-panel:last-child{grid-column:1/-1}.ai-overview-card,.lesson-panel{padding:24px}.ai-overview-card h2,.lesson-panel h2,.panel-title-row h2{font-weight:500;letter-spacing:-.035em}.lesson-transcript-row{border-color:var(--ds-line-2)}.lesson-transcript-seek{border-radius:10px;background:var(--ds-bg-soft);color:var(--ds-accent-ink)}.student-overview-grid{grid-template-columns:1fr}.student-profile-panel{border:1px solid var(--ds-line);border-radius:var(--ds-radius-card);background:var(--ds-bg);padding:28px}.student-profile-avatar{border-radius:22px}.student-meta-grid>div,.student-notes-panel{border-color:var(--ds-line);border-radius:18px;background:var(--ds-bg-soft)}.lesson-planner-form label,.settings-field{color:var(--ds-ink-2);font-size:14px;font-weight:600}.lesson-planner-form label>span,.settings-field>span{display:block;margin-bottom:7px}.ai-overview-card{border-color:var(--ds-accent-border);background:var(--ds-accent-soft)}.ai-card-kicker{color:var(--ds-accent-ink)}.skeleton-circle,.skeleton-line,.skeleton-pill{background:linear-gradient(90deg,var(--ds-bg-warm),#f9f8f5,var(--ds-bg-warm));background-size:200% 100%}.product-admin-loading,.product-admin-metrics,.product-admin-overview-grid,.product-admin-shell .ai-admin-header,.product-admin-shell .ai-admin-status,.product-transcription-history,.product-user-detail-grid,.product-users-card{width:min(100%,1400px);margin-right:auto;margin-left:auto}.product-admin-metrics{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:12px;margin-bottom:14px}.product-admin-metric{align-content:start;min-height:154px;gap:10px;padding:18px}.product-admin-metric-label{display:flex;align-items:center;gap:8px;color:var(--ds-muted);font-size:12px;font-weight:600}.product-admin-metric-label svg{color:var(--ds-accent-ink)}.product-admin-metric>strong{margin-top:auto;color:var(--ds-ink);font-size:clamp(25px,2.4vw,34px);font-weight:500;letter-spacing:-.045em;line-height:1}.product-admin-metric>small{color:var(--ds-muted);font-size:11px}.product-admin-overview-grid{display:grid;grid-template-columns:minmax(0,2fr) minmax(280px,.75fr);gap:14px;margin-bottom:14px}.product-admin-chart-card,.product-feature-card,.product-retention-card{min-height:310px}.product-admin-section-head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px}.product-admin-section-head h2{margin:0;color:var(--ds-ink);font-size:20px;font-weight:500;letter-spacing:-.025em}.product-admin-section-head p{margin:4px 0 0;color:var(--ds-muted);font-size:13px}.product-dau-chart{display:grid;grid-template-columns:repeat(14,minmax(18px,1fr));align-items:end;gap:8px;height:205px;padding-top:22px}.product-dau-day{display:grid;grid-template-rows:20px minmax(0,1fr) 18px;align-items:end;gap:5px;height:100%;text-align:center}.product-dau-day small,.product-dau-day strong{color:var(--ds-muted);font-size:10px;font-weight:600}.product-dau-day>span{width:100%;min-height:5px;border-radius:7px 7px 3px 3px;background:var(--ds-accent);opacity:.78}.product-retention-card{align-content:start}.product-retention-row{display:grid;grid-template-columns:48px 1fr;align-items:center;gap:12px;border-top:1px solid var(--ds-line-2);padding-top:14px}.product-retention-row>strong{color:var(--ds-accent-ink);font-size:15px}.product-retention-row div{display:flex;align-items:baseline;justify-content:space-between;gap:10px}.product-retention-row div span{color:var(--ds-ink);font-size:28px;font-weight:500;letter-spacing:-.04em}.product-admin-note,.product-retention-row small{color:var(--ds-muted);font-size:11px}.product-admin-note{margin:0;line-height:1.5}.product-users-card{gap:0;padding:0;overflow:hidden}.product-users-head{align-items:center;padding:22px}.product-user-search{display:grid;grid-template-columns:auto minmax(180px,300px) auto;align-items:center;gap:9px;border:1px solid var(--ds-line);border-radius:var(--ds-radius-control);background:var(--ds-bg-soft);padding:4px 5px 4px 12px;color:var(--ds-muted)}.product-user-search input{min-width:0;border:0;outline:0;background:transparent;color:var(--ds-ink);font-size:14px}.product-users-table-wrap{overflow-x:auto}.product-users-table{width:100%;border-collapse:collapse;text-align:left}.product-users-table th{border-top:1px solid var(--ds-line);border-bottom:1px solid var(--ds-line);background:var(--ds-bg-soft);padding:10px 14px;color:var(--ds-muted);font-size:11px;font-weight:600;white-space:nowrap}.product-users-table td{min-width:140px;border-bottom:1px solid var(--ds-line-2);padding:13px 14px;vertical-align:middle}.product-users-table td:first-child{min-width:210px}.product-users-table td small,.product-users-table td span,.product-users-table td strong{display:block}.product-users-table td strong{color:var(--ds-ink-2);font-size:13px;font-weight:600}.product-users-table td small,.product-users-table td span{margin-top:2px;color:var(--ds-muted);font-size:11px}.product-users-table tbody tr:hover{background:var(--ds-bg-soft)}.product-user-open{display:grid;width:34px;height:34px;place-items:center;border-radius:11px;color:var(--ds-accent-ink)}.product-user-open:hover{background:var(--ds-accent-soft)}.product-pagination{display:flex;align-items:center;justify-content:flex-end;gap:12px;padding:14px 18px}.product-admin-empty,.product-admin-loading,.product-pagination span{color:var(--ds-muted);font-size:13px}.product-admin-empty{margin:0;padding:22px}.product-admin-loading{margin-bottom:14px}.product-admin-breadcrumb{display:inline-flex;align-items:center;gap:5px;margin-bottom:18px;color:var(--ds-muted);font-size:13px;font-weight:600;text-decoration:none}.product-admin-breadcrumb:hover{color:var(--ds-accent-ink)}.product-user-state{display:inline-flex;align-items:center;gap:7px;min-height:38px;border:1px solid var(--ds-line);border-radius:var(--ds-pill);padding:0 13px;color:var(--ds-muted);font-size:12px;font-weight:600}.product-user-state>span{width:7px;height:7px;border-radius:50%;background:var(--ds-muted-2)}.product-user-state.is-active{border-color:#cbe8d2;background:var(--ds-success-soft);color:var(--ds-success)}.product-user-state.is-active>span{background:var(--ds-success)}.product-user-metrics{grid-template-columns:repeat(4,minmax(0,1fr))}.product-user-usage-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.product-activity-chart{display:flex;align-items:end;gap:5px;height:205px;padding-top:20px}.product-activity-chart>div{display:grid;grid-template-rows:minmax(0,1fr) 18px;align-items:end;gap:5px;min-width:10px;height:100%;flex:1;text-align:center}.product-activity-chart span{display:block;width:100%;min-height:6px;border-radius:5px 5px 2px 2px;background:var(--ds-accent);opacity:.72}.product-activity-chart small{color:var(--ds-muted);font-size:9px}.product-feature-list{display:grid;gap:13px}.product-feature-row{display:grid;grid-template-columns:100px minmax(0,1fr) 42px;align-items:center;gap:10px}.product-feature-row>span{display:inline-flex;align-items:center;gap:7px;color:var(--ds-muted);font-size:12px}.product-feature-row>div{height:7px;border-radius:var(--ds-pill);background:var(--ds-bg-warm);overflow:hidden}.product-feature-row i{display:block;height:100%;border-radius:inherit;background:var(--ds-accent)}.product-feature-row strong{color:var(--ds-ink-2);font-size:12px;text-align:right}.product-user-detail-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin-bottom:14px}.product-detail-list-card{align-content:start}.product-detail-row{display:grid;grid-template-columns:minmax(0,1fr) auto auto;align-items:center;gap:12px;border-top:1px solid var(--ds-line-2);padding-top:12px}.product-detail-row>div:first-child small,.product-detail-row>div:first-child span,.product-detail-row>div:first-child strong{display:block}.product-detail-row strong{color:var(--ds-ink-2);font-size:13px}.product-detail-row small,.product-detail-row span{margin-top:2px;color:var(--ds-muted);font-size:11px}.product-detail-row a{color:var(--ds-accent-ink)}.product-detail-badges{display:flex;align-items:center;flex-wrap:wrap;justify-content:flex-end;gap:5px}.product-detail-badges small{border-radius:var(--ds-pill);background:var(--ds-bg-soft);padding:4px 7px}.product-ai-detail-row{grid-template-columns:minmax(0,1fr) auto}.product-ai-detail-row>div:last-child{text-align:right}.product-transcription-history{margin-bottom:40px}}@layer teachsystem-features{}@layer teachsystem-responsive{@media (max-width:1040px){:root{--ds-gutter:24px}.app-shell{grid-template-columns:220px minmax(0,1fr)}.product-admin-metrics{grid-template-columns:repeat(3,minmax(0,1fr))}.product-admin-overview-grid,.product-user-detail-grid,.product-user-usage-grid{grid-template-columns:1fr}}@media (max-width:820px){:root{--ds-gutter:16px}.app-shell,.app-shell.is-sidebar-collapsed{display:block;min-height:100dvh}.sidebar{display:none}.workspace{min-height:100dvh;padding:28px var(--ds-gutter) calc(108px + env(safe-area-inset-bottom))}.email-verification-banner{grid-template-columns:auto minmax(0,1fr);margin-bottom:18px}.email-verification-banner [data-slot=button]{grid-column:1/-1;width:100%}.mobile-navigation{position:fixed;right:10px;bottom:max(10px,env(safe-area-inset-bottom));left:10px;z-index:50;display:grid;grid-template-columns:repeat(5,minmax(0,1fr));align-items:end;min-height:68px;border:1px solid var(--ds-line);border-radius:24px;background:color-mix(in srgb,var(--ds-bg) 94%,transparent);padding:7px 8px;box-shadow:0 14px 42px rgba(28,28,30,.13);backdrop-filter:blur(16px)}.mobile-navigation>a,.mobile-upload-action{display:flex;min-width:0;min-height:52px;flex-direction:column;align-items:center;justify-content:center;gap:4px;border:0;border-radius:16px;background:transparent;color:var(--ds-muted);text-decoration:none}.mobile-navigation>a.is-active{background:var(--ds-accent-soft);color:var(--ds-accent-ink)}.mobile-navigation small{max-width:100%;overflow:hidden;font-size:10px;font-weight:600;text-overflow:ellipsis;white-space:nowrap}.mobile-upload-action{color:var(--ds-accent-ink)}.mobile-upload-action>span{display:grid;width:48px;height:48px;margin-top:-22px;place-items:center;border:1px solid var(--ds-accent-border);border-radius:18px;background:var(--ds-accent-soft);box-shadow:0 8px 24px rgba(76,60,171,.16)}.mobile-upload-action small{margin-top:-1px}.toast-viewport{right:16px;bottom:calc(94px + env(safe-area-inset-bottom));left:16px;width:auto}.ds-page-header,.page-header{align-items:flex-start;flex-direction:column;margin-bottom:24px}.ds-page-heading h1,.page-header h1{font-size:clamp(36px,11vw,48px)}.ds-page-actions,.page-header-actions{width:100%;justify-content:stretch}.ds-page-actions>*,.page-header-actions>*{flex:1 1 auto}.stats-row{grid-template-columns:1fr 1fr}.dashboard-layout{grid-template-columns:1fr}.dashboard-metrics,.lesson-processing-steps{grid-template-columns:1fr 1fr}.lesson-detail-main{grid-template-columns:1fr}.lesson-detail-main>.lesson-panel:last-child{grid-column:auto}.lesson-page-head,.student-page-head{align-items:flex-start;flex-direction:column;gap:16px}.auth-page{padding:16px}.auth-layout{display:block;min-height:0;border-radius:26px}.auth-story{display:none}.auth-mobile-logo{display:block;margin-bottom:24px}.auth-panel{max-width:none;padding:32px 24px}.settings-grid-redesigned,.settings-workflow{grid-template-columns:1fr}.settings-recording-card{grid-column:auto}.product-admin-metrics,.product-user-metrics{grid-template-columns:repeat(2,minmax(0,1fr))}.product-user-detail-header,.product-users-head{align-items:stretch;flex-direction:column}.product-user-search{grid-template-columns:auto minmax(0,1fr) auto;width:100%}.product-dau-chart{gap:4px}.public-quiz-page{padding-top:18px}.public-quiz-hero{grid-template-columns:1fr}.public-quiz-progress-card{width:100%}.download-hero{margin-top:64px}.lesson-head-actions{width:100%;flex-wrap:wrap}.dashboard-metric:last-child,.stat-block:last-child{grid-column:1/-1}.filters,.toolbar{align-items:stretch;flex-direction:column}.filters,.select-field,.table-search{width:100%}.app-dialog,.lesson-planner-modal,[data-slot=dialog-content].app-dialog{width:100%;max-height:calc(100dvh - 24px);border-radius:26px 26px 0 0;padding:24px 18px calc(24px + env(safe-area-inset-bottom))}.app-dialog,[data-slot=dialog-content].app-dialog{top:auto;bottom:0;max-width:100%;translate:-50% 0;overflow-y:auto}.app-confirm-dialog{top:auto;bottom:0;width:100%;max-width:100%;transform:translateX(-50%)}}@media (max-width:640px){.dashboard-metrics{grid-template-columns:1fr}.dashboard-metric:last-child{grid-column:auto}.dashboard-metric{min-height:132px}.lesson-processing-steps{grid-template-columns:1fr}.lesson-processing-step small,.lesson-processing-step strong{white-space:normal}.ai-overview-card,.lesson-panel,.lesson-processing-rail,.public-quiz-card,.student-profile-panel{border-radius:22px;padding:20px}.public-quiz-student,.public-quiz-submit{align-items:stretch;flex-direction:column}.public-quiz-submit{right:10px;bottom:10px;left:10px;width:auto;border-radius:20px}.public-quiz-submit-button{width:100%}.download-page{padding-right:16px;padding-left:16px}.download-hero{text-align:left}.download-hero h1,.download-hero p{margin-right:0;margin-left:0}.desktop-connect-panel{border-radius:24px;padding:30px 20px}.dashboard-lesson-row{grid-template-columns:minmax(0,1fr) auto}.dashboard-lesson-row>svg{display:none}.dashboard-lesson-row .lesson-status{align-self:start}.stats-row{grid-template-columns:1fr}.stat-block:last-child{grid-column:auto}.ds-card{border-radius:22px;padding:20px}.student-lessons-panel,.students-section{border-radius:22px;padding:6px 14px 14px}.students-table-wrap{border:0;border-radius:0;overflow:visible}.students-table,.students-table tbody{display:block;width:100%}.students-table thead{display:none}.students-table tbody{display:grid;gap:10px}.students-table tbody tr{display:grid;gap:0;border:1px solid var(--ds-line);border-radius:20px;background:var(--ds-bg);padding:7px 14px;overflow:hidden}.students-table tbody tr.skeleton-row{min-height:170px}.students-table td{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:44px;border-bottom:1px solid var(--ds-line-2);padding:10px 0;text-align:right}.students-table td:last-child{border-bottom:0}.students-table td[data-label]:before{content:attr(data-label);flex:0 0 auto;color:var(--ds-muted);font-size:12px;font-weight:500;text-align:left}.students-table td[data-label="Урок"],.students-table td[data-label="Ученик"]{align-items:flex-start;flex-direction:column;gap:6px;text-align:left}.students-table td[data-label="Урок"]:before,.students-table td[data-label="Ученик"]:before{display:none}.students-table .lesson-topic-link,.students-table .student-cell{width:100%}.students-table .row-actions{justify-content:flex-end;width:100%}.page-header-actions{flex-direction:column}.page-header-actions>*{width:100%}}@media (prefers-reduced-motion:reduce){*,:after,:before{scroll-behavior:auto!important;animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}@media (max-width:520px){.product-admin-metrics,.product-user-metrics{grid-template-columns:1fr}.product-user-search{grid-template-columns:auto minmax(0,1fr)}.product-user-search .button{grid-column:1/-1}.product-dau-day strong{display:none}.product-dau-day{grid-template-rows:minmax(0,1fr) 18px}.product-detail-row{grid-template-columns:1fr auto}.product-detail-badges{grid-column:1/-1;justify-content:flex-start}}}@layer teachsystem-polish{.ds-page-header.is-compact{align-items:flex-end;gap:24px;margin-bottom:28px}.ds-page-header.is-compact .ds-page-heading{gap:7px}.ds-page-header.is-compact .ds-page-heading h1{font-size:clamp(38px,4.5vw,52px)}.ds-page-header.is-compact .ds-page-heading>p:last-child{max-width:58ch;font-size:14px}.record-index{min-width:0;border-top:1px solid var(--ds-line)}.record-index-heading{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:16px 0}.record-index-heading>p{margin:0;color:var(--ds-muted);font-size:13px;font-weight:500}.record-search{display:flex;width:min(100%,360px);min-height:42px;align-items:center;gap:9px;border:1px solid var(--ds-line);border-radius:13px;background:var(--ds-bg-soft);padding:0 13px;color:var(--ds-muted)}.record-search:focus-within{border-color:var(--ds-accent-border);box-shadow:0 0 0 3px color-mix(in srgb,var(--ds-accent-soft) 78%,transparent)}.record-search input{width:100%;min-width:0;min-height:40px!important;border:0!important;outline:0;background:transparent!important;padding:0!important;box-shadow:none!important;color:var(--ds-ink-2);font-size:14px}.record-table-wrap{min-width:0;border-top:1px solid var(--ds-line)}.record-table{width:100%;border-collapse:collapse;table-layout:fixed}.record-table thead{background:transparent}.record-table th{padding:12px 10px;color:var(--ds-muted);font-size:11px;font-weight:600;letter-spacing:.025em;text-align:left;text-transform:uppercase}.record-table td{min-width:0;border-top:1px solid var(--ds-line-2);padding:14px 10px;color:var(--ds-ink-2);font-size:13px;vertical-align:middle}.record-table td:first-child,.record-table th:first-child{width:34%;padding-left:0}.record-table td:last-child,.record-table th:last-child{width:48px;padding-right:0;text-align:right}.record-table-students td:nth-child(2),.record-table-students th:nth-child(2){width:23%}.record-table-students td:nth-child(3),.record-table-students th:nth-child(3){width:12%}.record-table-lessons td:first-child,.record-table-lessons th:first-child{width:29%}.record-table-lessons td:nth-child(2),.record-table-lessons th:nth-child(2){width:22%}.record-table-lessons td:nth-child(3),.record-table-lessons th:nth-child(3){width:24%}.record-row{cursor:pointer;transition:background-color .14s ease}.record-row:hover{background:color-mix(in srgb,var(--ds-bg-soft) 62%,white)}.record-row:focus-within{background:var(--ds-bg-soft)}.record-mobile-primary>span:last-child,.record-table .student-cell,.record-table .student-cell>span:last-child{min-width:0}.record-mobile-primary small,.record-mobile-primary strong,.record-table .student-cell small,.record-table .student-cell strong{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.record-menu-trigger{display:inline-grid;width:36px;height:36px;place-items:center;border:0;border-radius:50%;background:transparent;color:var(--ds-muted)}.record-menu-trigger:hover,.record-menu-trigger[data-state=open]{background:var(--ds-bg-soft);color:var(--ds-ink)}.record-actions-menu,[data-slot=dropdown-menu-content]{max-width:calc(100vw - 24px);min-width:168px;border-color:var(--ds-line);border-radius:13px;background:var(--ds-bg);padding:5px;box-shadow:0 14px 34px rgba(28,28,30,.12)}[data-slot=dropdown-menu-item]{min-height:36px;border-radius:9px;padding:7px 10px;font-size:13px}.sidebar-profile-trigger[data-state=open] .profile-chevron{transform:rotate(180deg)}.sidebar-profile-dropdown{width:220px}.record-mobile-list{display:none}.record-mobile-item{position:relative;display:grid;grid-template-columns:minmax(0,1fr) 44px;gap:12px;border-bottom:1px solid var(--ds-line);padding:16px 0}.record-mobile-primary{display:flex;min-width:0;align-items:center;gap:11px;color:var(--ds-ink-2);text-decoration:none}.record-mobile-primary strong{font-size:15px;font-weight:600}.record-mobile-primary small{margin-top:3px;color:var(--ds-muted);font-size:12px}.record-mobile-meta{display:grid;grid-column:1/-1;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin:2px 0 0}.record-mobile-meta div{min-width:0}.record-mobile-meta dd,.record-mobile-meta dt{margin:0;font-size:12px}.record-mobile-meta dt{margin-bottom:3px;color:var(--ds-muted)}.record-mobile-meta dd{overflow-wrap:anywhere;color:var(--ds-ink-2);font-weight:500}.record-mobile-footer,.record-mobile-footnote{grid-column:1/-1;color:var(--ds-muted);font-size:12px}.record-mobile-footer{display:flex;align-items:center;justify-content:space-between;gap:12px}.record-mobile-item.is-skeleton{min-height:128px;align-content:center}.record-index>.empty-table-state{border-top:1px solid var(--ds-line-2);border-radius:0;padding:28px 0}.collapsible-content{display:grid;justify-items:start}.collapsible-content-viewport{position:relative;width:100%}.collapsible-content-viewport.is-collapsed{max-height:var(--collapsible-height);overflow:hidden}.collapsible-content-viewport.is-collapsed:after{position:absolute;right:0;bottom:0;left:0;height:72px;background:linear-gradient(to bottom,transparent,var(--ds-bg) 88%);content:"";pointer-events:none}.collapsible-content-viewport.is-expanded{max-height:none;overflow:visible}.collapsible-content-toggle{min-height:40px;border:0;border-radius:9px;background:transparent;padding:6px 8px;color:var(--ds-accent-ink);font-size:13px;font-weight:600}.collapsible-content-toggle:hover{background:var(--ds-accent-soft)}.student-insight-content{display:grid;gap:12px}.app-dialog,[data-slot=dialog-content].app-dialog{display:grid;grid-template-rows:auto minmax(0,1fr) auto;gap:0;width:min(calc(100vw - 40px),560px);max-height:calc(100dvh - 40px);border-radius:22px;padding:0;overflow:hidden}[data-slot=dialog-content].app-dialog-sm{max-width:440px}[data-slot=dialog-content].app-dialog-md{max-width:560px}[data-slot=dialog-content].app-dialog-lg{max-width:740px}[data-slot=dialog-content].app-dialog-wide{max-width:1040px}.app-dialog-headerbar{display:flex;align-items:flex-start;justify-content:space-between;gap:20px;padding:22px 24px 16px}.app-dialog-headerbar>div{min-width:0}.app-dialog-headerbar .eyebrow{margin:0 0 6px;font-size:10px}.app-dialog-headerbar [data-slot=dialog-title]{margin:0;overflow-wrap:anywhere;font-size:24px;font-weight:500;letter-spacing:-.04em;line-height:1.12}.app-dialog-headerbar [data-slot=dialog-description]{margin:8px 0 0;font-size:14px}.app-dialog-close{display:grid;width:36px;height:36px;flex:0 0 auto;place-items:center;border:1px solid var(--ds-line);border-radius:50%;background:transparent;color:var(--ds-muted)}.app-dialog-close:hover{background:var(--ds-bg-soft);color:var(--ds-ink)}.app-dialog-close:disabled{cursor:not-allowed;opacity:.45}.app-dialog-body{min-width:0;min-height:0;padding:0 24px 24px;overflow-y:auto;overscroll-behavior:contain}.app-dialog>.app-dialog-footer{border-top:1px solid var(--ds-line);padding:14px 24px}.app-confirm-dialog{width:min(calc(100% - 32px),440px);max-width:440px;grid-template-rows:auto auto;gap:20px;padding:24px}.app-confirm-dialog .app-dialog-header>:first-child{font-size:22px}.lesson-upload-expectation{border:0;border-top:1px solid var(--ds-line-2);border-radius:0;background:transparent;padding:12px 0 0}[data-slot=dialog-content].app-dialog.ai-chat-modal{width:min(1040px,calc(100vw - 40px));height:min(760px,calc(100dvh - 40px));border-radius:24px}.ai-chat-modal .app-dialog-headerbar{border-bottom:1px solid var(--ds-line);padding:14px 20px}.ai-chat-modal .app-dialog-headerbar [data-slot=dialog-title]{font-size:18px;font-weight:600}.ai-chat-modal .app-dialog-body{display:flex;padding:0;overflow:hidden}.ai-chat-modal .ai-chat-body{width:100%;min-height:0}.dashboard-metrics{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0;margin-bottom:28px;border-top:1px solid var(--ds-line);border-bottom:1px solid var(--ds-line)}.dashboard-metric,.dashboard-metric:last-child{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:8px;min-height:0;border:0;border-right:1px solid var(--ds-line);border-radius:0;background:transparent;padding:16px 20px}.dashboard-metric:last-child{border-right:0}a.dashboard-metric:hover{background:var(--ds-bg-soft);transform:none}.dashboard-metric-icon{display:none}.dashboard-metric-label{align-self:center;margin:0;font-size:12px}.dashboard-metric strong{grid-column:auto;grid-row:1;align-self:center;margin:0;font-size:27px}.dashboard-metric-arrow{display:none}.dashboard-recent-card{border:0;border-radius:0;padding:0}.dashboard-skeleton .dashboard-metric{min-height:64px}.dashboard-side-stack .ds-card{border:0;border-bottom:1px solid var(--ds-line);border-radius:0;background:transparent;padding:0 0 22px}.dashboard-card-icon{display:none}.settings-grid-redesigned{gap:32px}.settings-grid-redesigned .settings-card{border:0;border-top:1px solid var(--ds-line);border-radius:0;padding:22px 0 0}@media (max-width:900px){.record-table-wrap{display:none}.record-mobile-list{display:grid;border-top:1px solid var(--ds-line)}}@media (max-width:820px){.ds-page-header.is-compact{gap:16px;margin-bottom:22px}.ds-page-header.is-compact .ds-page-heading h1{font-size:clamp(36px,11vw,46px)}.ds-page-header.is-compact .ds-page-actions{width:auto}.ds-page-header.is-compact .ds-page-actions>*{flex:none}.record-index-heading{align-items:stretch;flex-direction:column;gap:12px}.record-search{width:100%}.app-dialog input,.app-dialog select,.app-dialog textarea,.record-search input{font-size:16px!important}.record-table-wrap{display:none}.record-mobile-list{display:grid;border-top:1px solid var(--ds-line)}.app-dialog-close,.record-menu-trigger{width:44px;height:44px}.ask-ai-button,.ds-page-actions [data-slot=button],.lesson-icon-danger,.lesson-subtle-action,.student-edit-link,.student-tab,[data-slot=dropdown-menu-item]{min-height:44px}.app-dialog,[data-slot=dialog-content].app-dialog{top:auto;right:0;bottom:0;left:0;width:100%;max-width:none;max-height:calc(100dvh - 12px);border-radius:24px 24px 0 0;transform:none;translate:none}.app-dialog-headerbar{padding:18px 16px 13px}.app-dialog-body{padding:0 16px calc(18px + env(safe-area-inset-bottom))}.app-dialog .lesson-planner-actions,.app-dialog>.app-dialog-footer{padding:12px 16px calc(12px + env(safe-area-inset-bottom))}.app-dialog .lesson-planner-actions{position:sticky;bottom:calc(-18px - env(safe-area-inset-bottom));z-index:2;margin:8px -16px calc(-18px - env(safe-area-inset-bottom));border-top:1px solid var(--ds-line);background:color-mix(in srgb,var(--ds-bg) 96%,transparent);backdrop-filter:blur(12px)}.app-dialog .lesson-planner-actions .button,.app-dialog .lesson-planner-actions [data-slot=button]{min-height:44px}.app-confirm-dialog{top:50%;right:auto;bottom:auto;left:50%;width:calc(100% - 32px);max-width:440px;border-radius:22px;padding:22px;transform:translate(-50%,-50%)}[data-slot=dialog-content].app-dialog.ai-chat-modal{width:100%;height:calc(100dvh - 8px);max-height:calc(100dvh - 8px);border-radius:22px 22px 0 0}.ai-chat-modal .app-dialog-headerbar{padding:12px 16px}.dashboard-metrics{grid-template-columns:1fr 1fr}.dashboard-metric:nth-child(2){border-right:0}.dashboard-metric:last-child{grid-column:1/-1;border-top:1px solid var(--ds-line)}.settings-grid-redesigned{gap:24px}}@media (max-width:640px){.workspace{overflow-x:clip}.collapsible-content-viewport.is-collapsed{max-height:var(--collapsible-mobile-height)}.collapsible-content-toggle{min-height:44px;margin-left:-8px}.record-mobile-meta{grid-template-columns:1fr;gap:10px}.student-lessons-panel .students-table tbody{gap:0}.student-lessons-panel .students-table tbody tr{border:0;border-bottom:1px solid var(--ds-line);border-radius:0;padding:8px 0}.record-mobile-footer{align-items:flex-start;flex-direction:column}.dashboard-metrics{grid-template-columns:1fr}.dashboard-metric,.dashboard-metric:last-child,.dashboard-metric:nth-child(2){grid-column:auto;border-right:0;border-bottom:1px solid var(--ds-line)}.dashboard-metric:last-child{border-bottom:0}.app-dialog-headerbar [data-slot=dialog-title]{font-size:22px}.app-confirm-dialog .app-dialog-footer{display:grid;grid-template-columns:1fr 1fr}.app-confirm-dialog .app-dialog-footer>*{min-height:44px}}}@layer teachsystem-polish{.student-plan-label-short{display:none}.student-profile-load-error{margin:-8px 0 20px;color:var(--ds-danger);font-size:13px}.student-profile-loading{display:flex;align-items:center;gap:14px;min-height:96px;border-bottom:1px solid var(--ds-line);padding-bottom:24px}.student-profile-loading>div{display:grid;gap:9px;width:min(340px,calc(100% - 70px))}@media (max-width:820px){.student-ai-insight,.student-lessons-panel,.student-lessons-panel .student-lessons-table,.student-lessons-panel .students-table-wrap,.student-notes-panel,.student-page-head,.student-profile-content,.student-profile-hero{width:100%;min-width:0;max-width:100%}.student-page-head{align-items:center;flex-direction:row;justify-content:space-between;gap:12px}.student-page-head .back-link{min-width:0}.student-page-head [data-slot=button]{flex:0 0 auto;width:auto}.student-lessons-panel .students-table-wrap{overflow:visible}.student-lessons-panel .student-lessons-table,.student-lessons-panel .student-lessons-table tbody{display:block}.student-lessons-panel .student-lessons-table thead{display:none}.student-lessons-panel .student-lessons-table tbody{display:grid;gap:0;width:100%;min-width:0}.student-lessons-panel .student-lessons-table tbody tr{display:grid;width:100%;min-width:0;border-bottom:1px solid var(--ds-line);padding:8px 0}.student-lessons-panel .student-lessons-table td{display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%;min-width:0;min-height:44px;border-bottom:1px solid var(--ds-line-2);padding:10px 0;text-align:right}.student-lessons-panel .student-lessons-table td:last-child{border-bottom:0}.student-lessons-panel .student-lessons-table td[data-label]:before{content:attr(data-label);flex:0 0 auto;color:var(--ds-muted);font-size:12px;font-weight:500;text-align:left}.student-lessons-panel .student-lessons-table td[data-label="Урок"]{align-items:flex-start;flex-direction:column;gap:6px;text-align:left}.student-lessons-panel .student-lessons-table td[data-label="Урок"]:before{display:none}.student-lessons-panel .lesson-topic-link{width:100%;min-width:0;overflow-wrap:anywhere}.student-lessons-panel .lesson-status{min-width:0;justify-content:flex-end;text-align:right}.student-lessons-panel .record-menu-trigger{flex:0 0 44px}}@media (max-width:640px){.student-page-head{align-items:center;flex-direction:row;justify-content:space-between;gap:10px;margin-bottom:20px}.student-page-head .back-link{min-width:0;min-height:44px;padding:0 4px 0 0}.student-page-head [data-slot=button]{flex:0 0 auto;min-height:40px;padding-inline:14px}.student-plan-label-full{display:none}.student-plan-label-short{display:inline}.student-profile-hero{display:block;padding-bottom:18px}.student-profile-main{display:flex;align-items:center;flex-direction:row;gap:12px;width:100%;min-width:0}.student-profile-avatar{flex:0 0 48px;width:48px;height:48px;border-radius:14px;font-size:14px}.student-profile-copy{flex:1 1 auto;width:calc(100% - 60px);min-width:0}.student-profile-title{display:flex;align-items:center;flex-direction:row;gap:4px;width:100%;min-width:0}.student-profile-title h1{flex:1 1 auto;min-width:0;font-size:clamp(28px,9vw,34px);line-height:1.05;overflow-wrap:anywhere}.student-profile-title .student-edit-link{flex:0 0 auto;min-height:38px;padding-inline:8px}.student-contact-line{max-width:100%;margin-top:3px;line-height:1.35;overflow-wrap:anywhere}.student-meta-grid{display:grid;grid-template-columns:1fr;gap:0;width:100%;min-width:0;margin-top:18px}.student-meta-grid>div,.student-meta-grid>div:first-child,.student-meta-grid>div:nth-child(3){display:grid;grid-template-columns:minmax(104px,.8fr) minmax(0,1.2fr);align-items:baseline;gap:12px;min-width:0;border:0;border-top:1px solid var(--ds-line-2);padding:10px 0}.student-meta-grid dd,.student-meta-grid dt{margin:0;line-height:1.35}.student-meta-grid dd{text-align:right;overflow-wrap:anywhere}.student-profile-content{gap:0;margin-top:24px;padding-bottom:24px}.student-ai-insight .student-section-heading{align-items:center;flex-direction:row;gap:12px}.student-ai-insight .student-section-heading>div{min-width:0}.student-ai-insight .ask-ai-button{flex:0 0 auto;min-height:40px;padding-inline:12px}.student-notes-panel{margin-top:24px;border-radius:16px;padding:16px}.student-insight-copy,.student-insight-copy p,.student-notes-panel p{min-width:0;overflow-wrap:anywhere}.student-notes-panel .student-section-heading{align-items:center;flex-direction:row}.student-lessons-panel{margin-top:24px}}}