:root{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color-scheme:dark;--canvas:#10131b;--panel:#191e29;--text:#f5f6fa;--muted:#a3adbd;--line:#303747;--accent:#a69aff}*{box-sizing:border-box}body{margin:0;background:var(--canvas);color:var(--text)}button,a{font:inherit}a{color:inherit;text-decoration:none}button{cursor:pointer}button:focus-visible,a:focus-visible{outline:2px solid var(--accent);outline-offset:3px}button:disabled{cursor:default;opacity:.5}.watch-shell{height:100svh;min-height:320px;display:flex;flex-direction:column;padding:max(12px,env(safe-area-inset-top)) max(16px,env(safe-area-inset-right)) max(12px,env(safe-area-inset-bottom)) max(16px,env(safe-area-inset-left));gap:12px}.watch-header{display:flex;align-items:center;gap:14px;flex-shrink:0;min-width:0}.watch-logo{width:32px;height:32px;object-fit:contain;flex-shrink:0}.watch-titles{min-width:0;flex:1}.watch-titles h1{font-size:clamp(14px,2vw,20px);font-weight:600;letter-spacing:-.025em;line-height:1.4;margin:0;overflow-wrap:anywhere}.watch-eyebrow{font-size:11px;color:var(--muted);margin:3px 0 0}.watch-stage{display:flex;align-items:center;justify-content:center;flex:1;min-height:0;min-width:0;background:#050608;border:1px solid var(--line);border-radius:18px;overflow:hidden}.watch-stage mux-player{width:100%;height:100%;--media-object-fit:contain;--media-object-position:center;min-width:0}.watch-footer{flex-shrink:0;font-size:12px;color:var(--muted);line-height:1.6}.watch-footer details{max-height:18svh;overflow:auto}.watch-footer summary{cursor:pointer;padding:6px 0}.watch-footer p{white-space:pre-wrap;overflow-wrap:anywhere;margin:4px 0 0}.catalog-shell{min-height:100svh;display:flex;flex-direction:column;padding:20px;gap:20px;max-width:1600px;margin:auto}.catalog-heading{display:flex;align-items:center;gap:14px}.catalog-heading h1{font-size:clamp(20px,3vw,30px);letter-spacing:-.035em;font-weight:600;line-height:1.25;margin:0}.catalog-intro{color:var(--muted);font-size:13px;line-height:1.7;white-space:pre-wrap;margin:0;max-width:760px}.catalog-grid{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:20px;align-items:start}.catalog-view{min-width:0}.catalog-view .watch-stage{height:calc(100svh - 190px);min-height:260px;max-height:800px}.lesson-title{margin:14px 0 6px;font-size:18px;font-weight:600;line-height:1.5;letter-spacing:-.02em}.lesson-description{font-size:13px;color:var(--muted);line-height:1.7;white-space:pre-wrap}.lesson-list{border:1px solid var(--line);background:var(--panel);padding:8px;border-radius:18px;display:flex;flex-direction:column;gap:4px;max-height:75svh;overflow:auto}.lesson-list h2{font-size:12px;font-weight:600;padding:6px 8px;color:var(--muted);margin:0 0 4px}.lesson-button{display:flex;align-items:center;gap:10px;width:100%;min-width:0;min-height:64px;border:1px solid transparent;border-radius:11px;padding:8px;text-align:left;background:transparent;color:var(--text)}.lesson-button[aria-current=true]{background:#a69aff14;border-color:#a69aff60}.lesson-button img{width:78px;aspect-ratio:16/9;object-fit:cover;border-radius:7px;flex-shrink:0}.lesson-button span{font-size:12px;font-weight:550;line-height:1.5;overflow-wrap:anywhere}.catalog-empty{border:1px solid var(--line);background:var(--panel);border-radius:18px;padding:40px 20px;text-align:center;color:var(--muted)}.watch-error{min-height:100svh;display:grid;place-items:center;padding:24px}.watch-error section{max-width:500px;text-align:center}.watch-error h1{font-size:24px}.watch-error p{color:var(--muted);line-height:1.7}.catalog-brand{font-size:11px;color:var(--muted);margin-top:auto}@media(max-width:900px){.catalog-grid{grid-template-columns:1fr}.catalog-view .watch-stage{height:auto;aspect-ratio:16/10;min-height:210px;max-height:65svh}.lesson-list{max-height:none}.catalog-shell{padding:16px;gap:16px}}@media(max-width:520px){.watch-shell{padding-left:10px;padding-right:10px;gap:9px}.watch-stage{border-radius:12px}.watch-header{gap:9px}.watch-eyebrow{font-size:10px}.watch-logo{width:27px;height:27px}.watch-footer{font-size:11px}.lesson-button{min-height:72px}.catalog-view .watch-stage{aspect-ratio:4/3}}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}}
@media(prefers-color-scheme:light){body:has(.catalog-shell){--canvas:#f5f5f7;--panel:#fff;--text:#25283e;--muted:#65718a;--line:#e1e5ee;--accent:#6960f5;color-scheme:light}}
.catalog-shell,.watch-shell{-webkit-font-smoothing:antialiased}.catalog-heading h1{font-weight:650;letter-spacing:-1.1px}.lesson-list,.watch-stage{border-radius:20px}.lesson-button{border-radius:11px;transition:background .16s,border-color .16s}.lesson-button:hover{background:#a69aff0c}@media(prefers-reduced-motion:reduce){.lesson-button{transition:none}}
.watch-stage{position:relative}.player-loading{position:absolute;inset:0;z-index:2;display:flex;align-items:center;justify-content:center;flex-direction:column;gap:12px;pointer-events:none;background:#0506089c;color:#f5f6fa;text-align:center;padding:24px;font-size:13px;line-height:1.5}.player-loading[hidden]{display:none}.player-loading-spinner{width:30px;height:30px;border:3px solid #ffffff30;border-top-color:#c4b6ff;border-radius:50%;animation:player-loading-spin .8s linear infinite}.player-loading.is-error{inset:auto 12px 12px;border-radius:10px;padding:12px;background:#351e29e8}.player-loading.is-error .player-loading-spinner{display:none}@keyframes player-loading-spin{to{transform:rotate(360deg)}}@media(prefers-reduced-motion:reduce){.player-loading-spinner{animation:none;border-color:#c4b6ff #ffffff30 #ffffff30}}