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.in-player{background:#101b29}.in-player .site-header{display:none}.player-header{display:flex;align-items:center;gap:25px;padding:20px 32px;border-bottom:1px solid #ffffff1a;background:#142133;color:#f9f8f3;min-height:94px}.player-header>div{flex:1;min-width:0}.player-header .label{color:#b1c5d8;font-size:.75rem}.player-header h1{font-size:1.25rem;line-height:1.4;letter-spacing:-.03em;margin:4px 0 0}.player-header .secondary{background:transparent;border-color:#ffffff33;color:#e5edf6;font-size:.875rem}.player-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;min-height:calc(100dvh - 95px)}.playlist{grid-column:2;grid-row:1;background:#162335;border-left:1px solid #ffffff15;padding:21px 16px;max-height:calc(100dvh - 95px);overflow:auto;overscroll-behavior:contain}.playlist h2{color:#b0c3d7;font-size:.75rem;letter-spacing:.02em;margin:20px 9px 9px}.playlist h2:first-child{margin-top:0}.playlist button{width:100%;display:flex;gap:12px;text-align:left;background:transparent;color:#d4dde6;padding:13px 11px;border-radius:8px;font-size:.875rem;line-height:1.55}.playlist button:hover:not(:disabled){background:#ffffff08}.playlist button[aria-current=true]{background:#26445c;color:#fff;box-shadow:inset 3px 0 var(--cyan)}.playlist button>small{font-size:.75rem;color:#97acc0;padding-top:2px;flex-shrink:0}.playlist button span small{font-size:.75rem;color:#9caec0;display:block;margin-top:3px}.playlist button:disabled{color:#8d9dad}.player-main{grid-column:1;grid-row:1;display:flex;flex-direction:column;justify-content:center;min-width:0;padding:27px 30px;background:#101b29}.player-frame-wrap{position:relative;aspect-ratio:16/9;width:100%;background:#070f18;border:1px solid #ffffff12;border-radius:10px;overflow:hidden;box-shadow:0 20px 70px #0005}.player-frame-wrap iframe{position:absolute;inset:0;width:100%;height:100%;border:0;background:#070f18}#frameLoading{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;flex-direction:column;background:#152335;color:#c4d0dc;z-index:2;font-size:.875rem}#frameLoading strong{margin-top:14px}#frameLoading p{font-size:.8125rem}.loader{width:26px;height:26px;border-radius:50%;border:2px solid #ffffff22;border-top-color:var(--cyan);animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.player-bottom{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:23px 0 0;color:#c7d7e5}.player-bottom p{font-size:.8125rem;font-variant-numeric:tabular-nums;text-align:center;margin:0}.player-bottom .secondary{background:transparent;border-color:#ffffff2b;color:#dce7f0;font-size:.875rem}.player-bottom .primary{background:#d8e790;border-color:#d8e790;color:#142133;font-size:.875rem}.player-bottom button:disabled{background:#1d2c3d;border-color:#ffffff18;color:#94a8bb}.player-help{display:flex;align-items:start;justify-content:space-between;gap:24px;margin-top:14px;font-size:.75rem;color:#9cb0c4}.player-help p{margin:0;max-width:56em}.player-help a{color:#c1d5e7;white-space:nowrap;text-decoration:underline;text-underline-offset:4px}.narrow-reading-tip{display:none}#togglePlaylist{display:none}
html[data-theme=dark]{color-scheme:dark;--paper:#101b29;--surface:#172638;--soft:#203247;--ink:#f3f3ed;--muted:#b4c0cb;--line:#324151;--navy:#203e5c;--accent:#f08b72;--focus:#9ed6e0}html[data-theme=dark] .course-card.featured{background:#23445d;border-color:#365972}html[data-theme=dark] .course-card[aria-pressed=true]{outline-color:#f08b72}html[data-theme=dark] .card-number{color:#c1d4e4}
@media(min-width:1600px){.player-layout{grid-template-columns:minmax(0,1fr) 340px}.player-main{padding:36px 50px}}
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