.video-lessons-shell{--video-ink:#11192f;--video-panel:color-mix(in srgb,var(--surface) 93%,var(--surface-lilac));--video-glow:color-mix(in srgb,var(--purple) 24%,transparent);--video-cyan:color-mix(in srgb,var(--cyan) 62%,var(--blue));--video-rose:color-mix(in srgb,var(--pink) 70%,var(--purple))}
.video-hub{display:grid;gap:56px;padding-top:54px}
.video-hub-hero{position:relative;display:grid;grid-template-columns:minmax(0,1.06fr) minmax(320px,.94fr);gap:52px;align-items:center;min-height:470px}
.video-hub-copy{min-width:0}.video-hub-copy h1{max-width:760px;margin:14px 0 18px;font-size:clamp(2.7rem,5.5vw,5.6rem);line-height:.97;letter-spacing:-.055em;color:var(--ink-strong)}.video-hub-copy .copy{max-width:720px;font-size:1rem;line-height:1.7}
.video-hub-signals{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px}.video-hub-signals span{min-height:36px;display:inline-flex;align-items:center;gap:7px;padding:7px 11px;border:1px solid var(--line);border-radius:999px;background:color-mix(in srgb,var(--surface) 88%,transparent);box-shadow:0 7px 18px rgba(48,66,105,.07);color:var(--muted);font-size:.68rem;font-weight:900}.video-signal-dot{width:8px;height:8px;border-radius:50%;background:var(--mint);box-shadow:0 0 0 4px color-mix(in srgb,var(--mint) 16%,transparent)}
.video-hub-visual{display:grid;place-items:center;min-height:360px;perspective:1100px}.video-prism{position:relative;width:min(410px,88vw);aspect-ratio:1.1/1;display:grid;place-items:center;transform:rotateX(3deg) rotateY(-4deg);transform-style:preserve-3d}.video-prism::before{content:"";position:absolute;inset:12% 4% 10%;border-radius:44% 56% 48% 52%/51% 40% 60% 49%;background:linear-gradient(145deg,color-mix(in srgb,var(--surface-cyan) 86%,var(--surface)),color-mix(in srgb,var(--surface-lilac) 78%,var(--surface)),color-mix(in srgb,var(--surface-warm) 78%,var(--surface)));border:1px solid color-mix(in srgb,var(--purple) 16%,var(--line));box-shadow:0 34px 75px rgba(59,76,130,.16),inset 0 1px 0 rgba(255,255,255,.6);transform:translateZ(-26px)}
.video-prism-screen{position:relative;z-index:3;width:72%;aspect-ratio:16/10;border-radius:26px;border:1px solid color-mix(in srgb,var(--purple) 24%,var(--line));background:linear-gradient(155deg,#16223c,#242650 54%,#432969);box-shadow:0 13px 0 rgba(47,43,88,.16),0 25px 48px rgba(42,50,98,.25),inset 0 0 0 1px rgba(255,255,255,.08);display:grid;place-items:center;overflow:hidden;transform:translateZ(24px)}.video-prism-screen::before{content:"";position:absolute;inset:8%;border:1px solid rgba(255,255,255,.1);border-radius:18px;background:radial-gradient(circle at 25% 20%,rgba(120,222,244,.2),transparent 36%),radial-gradient(circle at 78% 72%,rgba(255,112,170,.18),transparent 34%)}.video-prism-screen>i{position:absolute;height:4px;border-radius:99px;background:rgba(255,255,255,.13)}.video-prism-screen>i:nth-of-type(1){left:13%;right:42%;bottom:18%}.video-prism-screen>i:nth-of-type(2){left:13%;right:61%;bottom:12%}.video-prism-screen>i:nth-of-type(3){left:42%;right:13%;top:15%;background:linear-gradient(90deg,rgba(88,208,239,.38),rgba(171,140,255,.38))}.video-prism-play{position:relative;z-index:2;width:72px;height:72px;border-radius:24px;background:linear-gradient(145deg,#f8fbff,#dcd8ff);box-shadow:0 9px 0 rgba(86,70,153,.28),0 18px 35px rgba(6,9,27,.26);transform:rotate(-2deg)}.video-prism-play::before{content:"";position:absolute;left:29px;top:23px;border-left:23px solid #755df0;border-top:14px solid transparent;border-bottom:14px solid transparent}.video-prism-orbit{position:absolute;border:1px dashed color-mix(in srgb,var(--purple) 22%,transparent);border-radius:50%;transform:translateZ(1px)}.video-prism-orbit.is-one{width:88%;height:58%;transform:rotate(-13deg) translateZ(1px)}.video-prism-orbit.is-two{width:67%;height:88%;transform:rotate(22deg) translateZ(1px)}.video-prism>b{position:absolute;z-index:4;right:9%;bottom:17%;padding:7px 10px;border-radius:11px;background:var(--surface);border:1px solid var(--line);box-shadow:0 6px 0 color-mix(in srgb,var(--line-strong) 72%,transparent);color:var(--purple);font-size:.63rem;letter-spacing:.12em}
.video-collection-rail{display:flex;gap:10px;overflow:auto;padding:2px 2px 10px;scrollbar-width:thin;scroll-snap-type:x proximity}.video-collection-chip{flex:0 0 auto;min-width:220px;max-width:340px;display:grid;grid-template-columns:42px minmax(0,1fr);align-items:center;gap:10px;padding:10px 14px 12px;border:1px solid var(--line);border-radius:18px;background:var(--surface);box-shadow:0 5px 0 color-mix(in srgb,var(--line-strong) 60%,transparent);text-decoration:none;scroll-snap-align:start}.video-collection-chip.is-active{border-color:color-mix(in srgb,var(--purple) 34%,var(--line));background:linear-gradient(145deg,color-mix(in srgb,var(--surface-lilac) 68%,var(--surface)),var(--surface));box-shadow:0 5px 0 color-mix(in srgb,var(--purple) 12%,var(--line))}.video-collection-flag{width:40px;height:32px;border-radius:11px;display:grid;place-items:center;background:var(--surface);border:1px solid var(--line)}.video-collection-flag img{width:28px;height:19px;border-radius:4px}.video-collection-chip>span:last-child{min-width:0;display:grid;gap:2px}.video-collection-chip strong{font-size:.78rem;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.video-collection-chip small{color:var(--muted);font-size:.64rem;font-weight:800}
.video-library-section{display:grid;gap:24px}.video-library-head{display:flex;justify-content:space-between;align-items:end;gap:24px}.video-library-head>div{min-width:0}.video-library-head h2{margin:5px 0 9px;font-size:clamp(2rem,4vw,3.5rem);line-height:1.02}.video-library-head .copy{max-width:760px;margin:0}.video-library-count{flex:0 0 auto;padding:9px 12px;border-radius:999px;background:var(--surface-lilac);border:1px solid color-mix(in srgb,var(--purple) 18%,var(--line));color:var(--purple);font-size:.68rem;font-weight:950}
.video-lesson-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}.video-lesson-card{position:relative;min-width:0;overflow:hidden;border:1px solid var(--line);border-radius:28px;background:var(--surface);box-shadow:var(--shadow-card);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}.video-card-hit{position:absolute;inset:0;z-index:6;border-radius:inherit}.video-card-hit:focus-visible{outline:4px solid color-mix(in srgb,var(--blue) 38%,transparent);outline-offset:-5px}.video-card-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:#141a30}.video-card-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 45%,rgba(10,14,32,.44));pointer-events:none}.video-card-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s cubic-bezier(.2,.8,.2,1),filter .35s ease}.video-card-index,.video-card-duration{position:absolute;z-index:2;top:13px;padding:6px 9px;border-radius:10px;background:rgba(16,22,42,.76);border:1px solid rgba(255,255,255,.16);backdrop-filter:blur(8px);color:#fff;font-size:.64rem;font-weight:950}.video-card-index{left:13px;letter-spacing:.12em}.video-card-duration{right:13px}.video-card-play{position:absolute;z-index:3;left:50%;top:50%;width:62px;height:62px;border-radius:21px;display:grid;place-items:center;transform:translate(-50%,-50%);background:rgba(255,255,255,.91);border:1px solid rgba(255,255,255,.82);box-shadow:0 9px 0 rgba(32,25,77,.24),0 17px 28px rgba(8,10,30,.28);transition:transform .18s ease,box-shadow .18s ease}.video-card-play i{width:0;height:0;border-left:19px solid #7057eb;border-top:12px solid transparent;border-bottom:12px solid transparent;margin-left:4px}.video-card-body{padding:22px;display:grid;gap:9px}.video-card-kicker{margin:0;color:var(--purple)!important;font-size:.65rem!important;font-weight:950;letter-spacing:.11em;text-transform:uppercase}.video-card-body h3{margin:0;font-size:1.35rem;line-height:1.15}.video-card-body>p:not(.video-card-kicker){margin:0;color:var(--muted);font-size:.8rem;line-height:1.6}.video-card-tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:4px}.video-card-tags span{padding:5px 8px;border-radius:999px;border:1px solid var(--line);background:color-mix(in srgb,var(--surface-soft) 78%,var(--surface));color:var(--muted);font-size:.62rem;font-weight:850}.video-card-cta{display:inline-flex;align-items:center;gap:8px;margin-top:8px;color:var(--purple);font-size:.76rem;font-weight:950}.video-card-arrow{width:17px;height:11px;position:relative}.video-card-arrow::before{content:"";position:absolute;left:0;top:5px;width:13px;height:2px;border-radius:2px;background:currentColor}.video-card-arrow::after{content:"";position:absolute;right:0;top:2px;width:7px;height:7px;border-top:2px solid currentColor;border-right:2px solid currentColor;transform:rotate(45deg)}
@media(hover:hover) and (pointer:fine){.video-lesson-card:hover{transform:translateY(-5px);border-color:color-mix(in srgb,var(--purple) 28%,var(--line));box-shadow:0 12px 0 color-mix(in srgb,var(--purple) 7%,var(--line)),0 30px 60px rgba(46,57,100,.14)}.video-lesson-card:hover .video-card-media img{transform:scale(1.025);filter:saturate(1.03)}.video-lesson-card:hover .video-card-play{transform:translate(-50%,-54%) scale(1.04);box-shadow:0 6px 0 rgba(32,25,77,.22),0 20px 36px rgba(8,10,30,.34)}}
.video-learning-boundary{display:grid;grid-template-columns:minmax(0,.78fr) minmax(0,1.22fr);gap:28px;align-items:center;padding:28px;background:linear-gradient(120deg,color-mix(in srgb,var(--surface-cyan) 46%,var(--surface)),var(--surface),color-mix(in srgb,var(--surface-lilac) 48%,var(--surface)))}.video-learning-boundary h2{margin:5px 0 8px;font-size:clamp(1.7rem,3vw,2.7rem)}.video-learning-boundary p{margin:0;color:var(--muted);line-height:1.65}.video-flow-steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:9px}.video-flow-steps article{min-width:0;display:grid;grid-template-columns:38px minmax(0,1fr);gap:9px;padding:12px;border:1px solid var(--line);border-radius:17px;background:color-mix(in srgb,var(--surface) 91%,transparent)}.video-flow-steps article>span{width:36px;height:36px;border-radius:12px;display:grid;place-items:center;background:linear-gradient(145deg,var(--surface-lilac),var(--surface));border:1px solid color-mix(in srgb,var(--purple) 20%,var(--line));color:var(--purple);font-weight:950}.video-flow-steps article>div{display:grid;gap:3px;min-width:0}.video-flow-steps strong{font-size:.76rem}.video-flow-steps small{color:var(--muted);font-size:.64rem;line-height:1.45}

/* Watch page */
.video-watch-page{display:grid;gap:24px;padding-top:34px}.video-watch-context{min-width:0}.video-watch-layout{display:grid;grid-template-columns:minmax(0,1.58fr) minmax(320px,.72fr);gap:22px;align-items:start}.video-stage-card{min-width:0}.school-video-player{position:relative;min-width:0}.video-depth-frame{position:relative;padding:9px 9px 16px;border-radius:34px;background:linear-gradient(145deg,color-mix(in srgb,var(--surface) 75%,#edf4ff),color-mix(in srgb,var(--surface-lilac) 88%,var(--surface)),color-mix(in srgb,var(--surface-cyan) 72%,var(--surface)));border:1px solid color-mix(in srgb,var(--purple) 17%,var(--line));box-shadow:0 12px 0 color-mix(in srgb,var(--line-strong) 45%,transparent),0 34px 78px rgba(42,55,103,.18);isolation:isolate}.video-depth-frame::before{content:"";position:absolute;inset:12px 6% -15px;border-radius:0 0 30px 30px;background:linear-gradient(90deg,color-mix(in srgb,var(--blue) 20%,transparent),color-mix(in srgb,var(--purple) 20%,transparent),color-mix(in srgb,var(--pink) 17%,transparent));filter:blur(20px);opacity:.48;z-index:-1}.video-frame-edge{position:absolute;z-index:-1;top:18%;bottom:18%;width:18px;border-radius:12px;background:linear-gradient(180deg,color-mix(in srgb,var(--cyan) 55%,var(--surface)),color-mix(in srgb,var(--purple) 45%,var(--surface)));opacity:.42}.video-frame-edge.is-left{left:-7px;transform:skewY(-13deg)}.video-frame-edge.is-right{right:-7px;transform:skewY(13deg)}
.video-surface{position:relative;overflow:hidden;aspect-ratio:16/9;border-radius:26px;background:#080d1c;border:1px solid rgba(255,255,255,.14);box-shadow:inset 0 0 0 1px rgba(0,0,0,.35),0 12px 30px rgba(8,13,31,.24)}.video-surface video{width:100%;height:100%;object-fit:contain;background:#050814;display:block}.school-video-player.is-enhanced video{outline:none}.school-video-player:not(.is-enhanced) .video-center-play,.school-video-player:not(.is-enhanced) .video-controls,.school-video-player:not(.is-enhanced) .video-state-layer{display:none}.video-surface::before{content:"";position:absolute;z-index:4;inset:0;pointer-events:none;box-shadow:inset 0 0 0 1px rgba(255,255,255,.05),inset 0 -90px 80px -80px rgba(0,0,0,.55)}
.video-center-play{position:absolute;z-index:8;left:50%;top:50%;transform:translate(-50%,-50%);min-width:132px;min-height:72px;padding:10px 18px;border:1px solid rgba(255,255,255,.5);border-radius:24px;background:linear-gradient(145deg,rgba(255,255,255,.96),rgba(236,233,255,.94));box-shadow:0 10px 0 rgba(72,54,138,.28),0 23px 45px rgba(1,5,20,.36);display:flex;align-items:center;justify-content:center;gap:12px;color:#5d48ce;font-weight:950;cursor:pointer;transition:transform .18s ease,box-shadow .18s ease,opacity .16s ease}.video-center-play-icon{width:0;height:0;border-left:22px solid currentColor;border-top:14px solid transparent;border-bottom:14px solid transparent}.school-video-player.is-playing .video-center-play,.school-video-player.has-started:not(.is-paused) .video-center-play{opacity:0;pointer-events:none}.school-video-player.is-paused.has-started .video-center-play{opacity:1}.school-video-player.is-ended .video-center-play{display:none}
@media(hover:hover) and (pointer:fine){.video-center-play:hover{transform:translate(-50%,calc(-50% - 3px));box-shadow:0 7px 0 rgba(72,54,138,.27),0 28px 48px rgba(1,5,20,.4)}}
.video-state-layer{position:absolute;z-index:9;inset:0;display:grid;place-items:center;align-content:center;gap:10px;background:rgba(5,8,20,.32);color:#fff;opacity:0;pointer-events:none;transition:opacity .14s ease}.school-video-player.is-loading .video-state-layer,.school-video-player.has-error .video-state-layer{opacity:1}.video-state-spinner{width:34px;height:34px;border-radius:50%;border:3px solid rgba(255,255,255,.22);border-top-color:#fff;animation:video-spin .8s linear infinite}.school-video-player.has-error .video-state-spinner{display:none}.video-state-copy{padding:6px 10px;border-radius:10px;background:rgba(9,12,28,.66);font-size:.72rem;font-weight:900}@keyframes video-spin{to{transform:rotate(360deg)}}
.video-end-card{position:absolute;z-index:11;inset:0;place-items:center;align-content:center;gap:12px;padding:20px;text-align:center;background:linear-gradient(145deg,rgba(7,12,28,.88),rgba(34,25,68,.88));color:#fff}.video-end-card:not([hidden]){display:grid}.video-end-mark{width:56px;height:56px;border-radius:20px;display:grid;place-items:center;background:linear-gradient(145deg,#6fe4b6,#48c995);box-shadow:0 7px 0 rgba(19,110,80,.32);font-size:1.5rem;font-weight:950}.video-end-card>strong{font-size:1.05rem}.video-end-actions{display:flex;flex-wrap:wrap;justify-content:center;gap:8px}.video-end-actions button,.video-end-actions a{min-height:44px;padding:0 14px;border-radius:14px;border:1px solid rgba(255,255,255,.18);display:inline-flex;align-items:center;justify-content:center;text-decoration:none;font-size:.72rem;font-weight:950;cursor:pointer}.video-end-replay{background:rgba(255,255,255,.12);color:#fff}.video-end-next{background:#fff;color:#5d48ce}
.video-controls{position:absolute;z-index:10;left:0;right:0;bottom:0;padding:36px 14px 12px;background:linear-gradient(180deg,transparent,rgba(4,7,18,.78) 42%,rgba(4,7,18,.94));opacity:1;transform:translateY(0);transition:opacity .16s ease,transform .16s ease}.school-video-player.is-playing.is-controls-hidden .video-controls{opacity:0;transform:translateY(8px);pointer-events:none}.school-video-player.is-playing.is-controls-hidden{cursor:none}.video-seek-wrap{position:relative;display:block;height:20px;margin:0 2px 7px}.video-seek-buffer{position:absolute;left:0;right:0;top:8px;height:5px;border-radius:99px;background:linear-gradient(90deg,rgba(255,255,255,.38) var(--buffered,0%),rgba(255,255,255,.16) var(--buffered,0%));pointer-events:none}.video-seek{position:absolute;inset:0;width:100%;height:20px;margin:0;appearance:none;background:transparent;cursor:pointer}.video-seek::-webkit-slider-runnable-track{height:5px;border-radius:99px;background:linear-gradient(90deg,#8d78ff var(--played,0%),transparent var(--played,0%))}.video-seek::-moz-range-track{height:5px;border-radius:99px;background:rgba(255,255,255,.16)}.video-seek::-moz-range-progress{height:5px;border-radius:99px;background:#8d78ff}.video-seek::-webkit-slider-thumb{appearance:none;width:15px;height:15px;margin-top:-5px;border-radius:50%;border:2px solid #fff;background:#8d78ff;box-shadow:0 2px 8px rgba(0,0,0,.45)}.video-seek::-moz-range-thumb{width:13px;height:13px;border-radius:50%;border:2px solid #fff;background:#8d78ff;box-shadow:0 2px 8px rgba(0,0,0,.45)}.video-seek:focus-visible{outline:3px solid rgba(127,156,255,.58);outline-offset:4px;border-radius:99px}
.video-control-row{display:grid;grid-template-columns:auto minmax(74px,1fr) auto;align-items:center;gap:10px}.video-control-cluster{display:flex;align-items:center;gap:5px}.video-control-secondary{justify-content:flex-end}.video-control{position:relative;width:44px;height:44px;flex:0 0 44px;border:1px solid rgba(255,255,255,.12);border-radius:13px;background:rgba(255,255,255,.08);color:#fff;display:grid;place-items:center;cursor:pointer;transition:background .14s ease,transform .14s ease}.video-control:hover{background:rgba(255,255,255,.16)}.video-control:active{transform:translateY(1px)}.video-control:focus-visible{outline:3px solid rgba(147,171,255,.74);outline-offset:2px}.video-time{min-width:0;color:rgba(255,255,255,.9);font-variant-numeric:tabular-nums;font-size:.68rem;font-weight:900;white-space:nowrap}.video-time i{margin:0 4px;color:rgba(255,255,255,.4);font-style:normal}.video-speed{width:46px;flex-basis:46px}.video-speed span{font-size:.68rem;font-weight:950}.video-volume-wrap{width:82px;display:grid;place-items:center}.video-volume{width:76px;height:20px;appearance:none;background:transparent;cursor:pointer}.video-volume::-webkit-slider-runnable-track{height:4px;border-radius:99px;background:linear-gradient(90deg,#fff var(--volume,100%),rgba(255,255,255,.24) var(--volume,100%))}.video-volume::-moz-range-track{height:4px;border-radius:99px;background:rgba(255,255,255,.24)}.video-volume::-moz-range-progress{height:4px;border-radius:99px;background:#fff}.video-volume::-webkit-slider-thumb{appearance:none;width:12px;height:12px;margin-top:-4px;border-radius:50%;border:0;background:#fff}.video-volume::-moz-range-thumb{width:12px;height:12px;border-radius:50%;border:0;background:#fff}.video-volume:focus-visible{outline:2px solid rgba(147,171,255,.78);outline-offset:3px;border-radius:99px}
.video-glyph{position:relative;display:block}.video-glyph.is-play{width:0;height:0;border-left:13px solid currentColor;border-top:8px solid transparent;border-bottom:8px solid transparent;margin-left:3px}.video-toggle[aria-label][data-state="pause"] .video-glyph.is-play{width:14px;height:16px;border:0;margin:0}.video-toggle[data-state="pause"] .video-glyph.is-play::before,.video-toggle[data-state="pause"] .video-glyph.is-play::after{content:"";position:absolute;top:0;bottom:0;width:4px;border-radius:2px;background:currentColor}.video-toggle[data-state="pause"] .video-glyph.is-play::before{left:1px}.video-toggle[data-state="pause"] .video-glyph.is-play::after{right:1px}.video-skip-glyph{position:relative;font-size:.56rem;font-weight:950;line-height:1}.video-skip-glyph::before{content:"";position:absolute;width:20px;height:20px;border:2px solid currentColor;border-right-color:transparent;border-radius:50%;left:50%;top:50%;transform:translate(-50%,-50%) rotate(-20deg)}.video-skip-glyph::after{content:"";position:absolute;left:-9px;top:-10px;width:0;height:0;border-right:6px solid currentColor;border-top:4px solid transparent;border-bottom:4px solid transparent;transform:rotate(22deg)}.video-skip-glyph.is-forward::before{border-right-color:currentColor;border-left-color:transparent;transform:translate(-50%,-50%) rotate(20deg)}.video-skip-glyph.is-forward::after{left:auto;right:-9px;border-right:0;border-left:6px solid currentColor;transform:rotate(-22deg)}.video-glyph.is-volume{width:17px;height:14px;border-left:6px solid currentColor;border-top:5px solid transparent;border-bottom:5px solid transparent}.video-glyph.is-volume::before{content:"";position:absolute;left:-11px;top:3px;width:7px;height:8px;border-radius:2px;background:currentColor}.video-glyph.is-volume::after{content:"";position:absolute;left:10px;top:1px;width:7px;height:10px;border-right:2px solid currentColor;border-radius:0 50% 50% 0}.video-mute[data-muted="true"] .video-glyph.is-volume::after{left:9px;top:5px;width:10px;height:2px;border:0;border-radius:2px;background:currentColor;transform:rotate(-45deg)}.video-glyph.is-fullscreen{width:18px;height:18px;background:linear-gradient(currentColor,currentColor) left top/7px 2px no-repeat,linear-gradient(currentColor,currentColor) left top/2px 7px no-repeat,linear-gradient(currentColor,currentColor) right top/7px 2px no-repeat,linear-gradient(currentColor,currentColor) right top/2px 7px no-repeat,linear-gradient(currentColor,currentColor) left bottom/7px 2px no-repeat,linear-gradient(currentColor,currentColor) left bottom/2px 7px no-repeat,linear-gradient(currentColor,currentColor) right bottom/7px 2px no-repeat,linear-gradient(currentColor,currentColor) right bottom/2px 7px no-repeat}.video-glyph.is-pip{width:20px;height:15px;border:2px solid currentColor;border-radius:3px}.video-glyph.is-pip::after{content:"";position:absolute;right:2px;bottom:2px;width:8px;height:6px;border-radius:1px;background:currentColor}
.video-keyboard-hint{margin:11px 4px 0;text-align:center;color:var(--muted);font-size:.62rem;line-height:1.45}.video-lesson-info{position:sticky;top:100px;padding:23px;display:grid;gap:14px;background:linear-gradient(145deg,color-mix(in srgb,var(--surface-lilac) 46%,var(--surface)),var(--surface) 46%,color-mix(in srgb,var(--surface-cyan) 35%,var(--surface)))}.video-lesson-info h1{margin:0;font-size:clamp(1.8rem,3.2vw,2.8rem);line-height:1.02;letter-spacing:-.04em}.video-lesson-description{margin:0;color:var(--muted);font-size:.82rem;line-height:1.62}.video-lesson-metrics{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:7px}.video-lesson-metrics span{min-width:0;padding:10px;border:1px solid var(--line);border-radius:15px;background:color-mix(in srgb,var(--surface) 86%,transparent);display:grid;gap:3px}.video-lesson-metrics small{color:var(--muted);font-size:.58rem;font-weight:850;text-transform:uppercase;letter-spacing:.07em}.video-lesson-metrics strong{font-size:.78rem;overflow-wrap:anywhere}.video-info-tags{margin-top:0}.video-original-note{display:flex;align-items:center;gap:9px;padding:10px 11px;border-radius:14px;background:color-mix(in srgb,var(--surface-mint) 70%,var(--surface));border:1px solid color-mix(in srgb,var(--mint) 20%,var(--line));color:var(--muted);font-size:.66rem;font-weight:800}.video-original-note i{width:10px;height:10px;flex:0 0 auto;border-radius:50%;background:var(--mint);box-shadow:0 0 0 4px color-mix(in srgb,var(--mint) 14%,transparent)}.video-related-actions{display:grid;grid-template-columns:1fr;gap:8px}.video-related-actions .button{width:100%;min-width:0}.video-lesson-nav{display:grid;gap:7px;padding-top:3px}.video-lesson-nav a{min-width:0;min-height:54px;padding:8px 10px;border:1px solid var(--line);border-radius:15px;background:color-mix(in srgb,var(--surface) 88%,transparent);display:grid;grid-template-columns:28px minmax(0,1fr);align-items:center;gap:8px;text-decoration:none}.video-lesson-nav a.is-next{grid-template-columns:minmax(0,1fr) 28px;text-align:right}.video-lesson-nav a>span:not(.video-nav-arrow){min-width:0;display:grid;gap:2px}.video-lesson-nav small{color:var(--muted);font-size:.57rem;font-weight:850}.video-lesson-nav strong{font-size:.7rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.video-nav-arrow{position:relative;width:24px;height:24px;border-radius:9px;background:var(--surface-lilac);color:var(--purple)}.video-nav-arrow::before{content:"";position:absolute;left:7px;top:8px;width:7px;height:7px;border-top:2px solid currentColor;border-right:2px solid currentColor;transform:rotate(45deg)}.video-nav-arrow.is-back::before{left:10px;transform:rotate(-135deg)}.video-watch-boundary{margin-top:8px}

html[data-theme="night"] .video-prism-screen{background:linear-gradient(155deg,#091021,#171a39 54%,#301f50)}html[data-theme="night"] .video-depth-frame{box-shadow:0 10px 0 rgba(0,0,0,.26),0 34px 78px rgba(0,0,0,.34)}html[data-theme="night"] .video-lesson-card{box-shadow:0 10px 0 rgba(0,0,0,.16),0 24px 54px rgba(0,0,0,.27)}
@media(prefers-color-scheme:dark){html[data-theme="auto"] .video-prism-screen{background:linear-gradient(155deg,#091021,#171a39 54%,#301f50)}html[data-theme="auto"] .video-depth-frame{box-shadow:0 10px 0 rgba(0,0,0,.26),0 34px 78px rgba(0,0,0,.34)}html[data-theme="auto"] .video-lesson-card{box-shadow:0 10px 0 rgba(0,0,0,.16),0 24px 54px rgba(0,0,0,.27)}}

@media(max-width:1040px){.video-hub-hero{grid-template-columns:1fr;gap:22px;min-height:auto}.video-hub-visual{min-height:300px}.video-prism{width:min(350px,78vw)}.video-watch-layout{grid-template-columns:1fr}.video-lesson-info{position:static;grid-template-columns:minmax(0,1fr);}.video-related-actions{grid-template-columns:repeat(2,minmax(0,1fr))}.video-lesson-nav{grid-template-columns:repeat(2,minmax(0,1fr))}.video-learning-boundary{grid-template-columns:1fr}}
@media(max-width:760px){.video-hub{gap:42px;padding-top:32px}.video-hub-copy h1{font-size:clamp(2.5rem,10vw,4rem)}.video-lesson-grid{grid-template-columns:1fr}.video-library-head{align-items:flex-start;flex-direction:column}.video-library-count{align-self:flex-start}.video-flow-steps{grid-template-columns:1fr}.video-learning-boundary{padding:21px}.video-watch-page{padding-top:24px}.video-depth-frame{padding:6px 6px 12px;border-radius:27px}.video-surface{border-radius:21px}.video-controls{padding:30px 9px 8px}.video-control-row{gap:7px}.video-volume-wrap{display:none}.video-control{width:44px;height:44px;flex-basis:44px}.video-mute{display:none}.video-pip{display:none}.video-time{font-size:.64rem}.video-lesson-info{padding:19px}.video-related-actions{grid-template-columns:1fr 1fr}.video-keyboard-hint{display:none}}
@media(max-width:520px){.video-hub{padding-top:22px}.video-hub-hero{gap:16px}.video-hub-copy h1{font-size:clamp(2.3rem,12.2vw,3.35rem)}.video-hub-signals{display:grid;grid-template-columns:1fr 1fr}.video-hub-signals span:first-child{grid-column:1/-1}.video-hub-visual{min-height:260px}.video-prism{width:min(290px,88vw)}.video-prism-play{width:60px;height:60px;border-radius:20px}.video-prism-play::before{left:25px;top:19px;border-left-width:20px;border-top-width:12px;border-bottom-width:12px}.video-prism>b{right:5%;bottom:13%;font-size:.57rem}.video-collection-chip{min-width:200px}.video-card-body{padding:18px}.video-card-body h3{font-size:1.2rem}.video-learning-boundary{border-radius:24px}.video-depth-frame{margin-inline:-2px}.video-frame-edge{display:none}.video-center-play{min-width:112px;min-height:64px;padding:8px 15px;border-radius:20px}.video-center-play strong{font-size:.78rem}.video-center-play-icon{border-left-width:18px;border-top-width:11px;border-bottom-width:11px}.video-control-row{grid-template-columns:auto minmax(48px,1fr) auto;gap:5px}.video-control-cluster{gap:3px}.video-control{width:44px;height:44px;flex-basis:44px;border-radius:12px}.video-speed{width:44px;flex-basis:44px}.video-time{font-size:.6rem}.video-time i{margin-inline:2px}.video-lesson-metrics{gap:5px}.video-lesson-metrics span{padding:8px}.video-related-actions{grid-template-columns:1fr}.video-lesson-nav{grid-template-columns:1fr}.video-lesson-nav a.is-next{text-align:left;grid-template-columns:28px minmax(0,1fr)}.video-lesson-nav a.is-next>span:first-child{grid-column:2}.video-lesson-nav a.is-next>.video-nav-arrow{grid-column:1;grid-row:1}.video-lesson-nav a.is-next>.video-nav-arrow::before{left:7px}.video-end-actions{display:grid;width:min(250px,90%)}.video-end-actions button,.video-end-actions a{width:100%}}
@media(max-width:380px){.video-hub-signals{grid-template-columns:1fr}.video-hub-signals span:first-child{grid-column:auto}.video-prism{width:min(270px,calc(100vw - 34px))}.video-library-head h2{font-size:1.8rem}.video-card-play{width:54px;height:54px;border-radius:18px}.video-card-play i{border-left-width:17px;border-top-width:10px;border-bottom-width:10px}.video-controls{padding-inline:7px}.video-control-row{gap:3px}.video-control-cluster{gap:2px}.video-control{width:44px;height:44px;flex-basis:44px}.video-speed{width:44px;flex-basis:44px}.video-time{font-size:.56rem}.video-current,.video-total{display:inline}.video-center-play{min-width:102px}.video-skip-glyph::before{width:18px;height:18px}.video-lesson-info{padding:16px}.video-lesson-metrics{grid-template-columns:1fr 1fr}.video-lesson-metrics span:last-child{grid-column:1/-1}.video-card-tags span{font-size:.59rem}}
@media(max-width:340px){.video-control-primary .video-forward{display:none}.video-time{justify-self:center}.video-control-row{grid-template-columns:auto 1fr auto}.video-center-play strong{display:none}.video-center-play{min-width:64px;width:64px;padding:0;border-radius:21px}.video-end-card{padding:12px}}
@media(prefers-reduced-motion:reduce){.video-lesson-card,.video-card-media img,.video-card-play,.video-center-play,.video-controls,.video-control,.video-state-layer{transition:none!important}.video-state-spinner{animation:none!important;border-top-color:rgba(255,255,255,.8)}}
@media(forced-colors:active){.video-prism::before,.video-prism-screen,.video-collection-chip,.video-lesson-card,.video-depth-frame,.video-learning-boundary,.video-lesson-info{background:Canvas;border:1px solid CanvasText;box-shadow:none}.video-card-play,.video-center-play,.video-control{background:ButtonFace;color:ButtonText;border:1px solid ButtonText;box-shadow:none}.video-surface{border:1px solid CanvasText}.video-frame-edge,.video-depth-frame::before{display:none}.video-card-media::after{display:none}}
.video-control:disabled,.video-seek:disabled{opacity:.48;cursor:default}.video-control:disabled:hover{background:rgba(255,255,255,.08)}

@media(pointer:coarse){.video-control{min-width:44px;min-height:44px}.video-volume{height:44px}.video-volume-wrap{height:44px}}

/* VIDEO-0075 — public-facing polish: functional collection navigation, expressive titles and rich series cards. */
.video-display-title{width:fit-content;max-width:100%;color:var(--ink-strong);background:linear-gradient(102deg,var(--purple) 0%,color-mix(in srgb,var(--purple) 64%,var(--pink)) 32%,var(--blue) 68%,color-mix(in srgb,var(--cyan) 72%,var(--blue)) 100%);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;text-wrap:balance;text-shadow:0 12px 34px color-mix(in srgb,var(--purple) 11%,transparent)}
.video-library-section{scroll-margin-top:126px}.video-library-head{position:relative}.video-library-head::after{content:"";position:absolute;left:0;bottom:-12px;width:min(180px,42vw);height:5px;border-radius:99px;background:linear-gradient(90deg,var(--purple),var(--pink),var(--cyan));opacity:.72;transform-origin:left center}.video-library-section:target .video-library-head::after{animation:video-target-spark .7s cubic-bezier(.2,.8,.2,1) both}@keyframes video-target-spark{0%{transform:scaleX(.18);filter:saturate(1.5)}100%{transform:scaleX(1);filter:saturate(1)}}
.video-collection-chip{grid-template-columns:42px minmax(0,1fr) 34px;transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease,background .18s ease}.video-collection-copy{min-width:0;display:grid;gap:2px}.video-collection-go{width:32px;height:32px;border-radius:12px;display:grid;place-items:center;background:linear-gradient(145deg,color-mix(in srgb,var(--surface-lilac) 76%,var(--surface)),color-mix(in srgb,var(--surface-cyan) 68%,var(--surface)));border:1px solid color-mix(in srgb,var(--purple) 18%,var(--line));box-shadow:0 3px 0 color-mix(in srgb,var(--purple) 10%,var(--line));color:var(--purple);transition:transform .18s ease,box-shadow .18s ease}.video-collection-go i{position:relative;width:13px;height:10px}.video-collection-go i::before{content:"";position:absolute;left:0;top:4px;width:11px;height:2px;border-radius:2px;background:currentColor}.video-collection-go i::after{content:"";position:absolute;right:0;top:1px;width:6px;height:6px;border-top:2px solid currentColor;border-right:2px solid currentColor;transform:rotate(45deg)}.video-collection-chip.is-active .video-collection-go{background:linear-gradient(145deg,color-mix(in srgb,var(--purple) 15%,var(--surface)),color-mix(in srgb,var(--cyan) 15%,var(--surface)));box-shadow:0 3px 0 color-mix(in srgb,var(--purple) 16%,var(--line)),0 8px 18px color-mix(in srgb,var(--purple) 10%,transparent)}
.video-card-body{position:relative}.video-card-body::before{content:"";position:absolute;left:22px;top:0;width:72px;height:4px;border-radius:0 0 99px 99px;background:linear-gradient(90deg,var(--purple),var(--pink),var(--cyan));opacity:.9}.video-card-title{width:fit-content;max-width:100%;margin:0;font-size:1.35rem;line-height:1.15;letter-spacing:-.025em;color:var(--ink-strong);background:linear-gradient(100deg,var(--purple),color-mix(in srgb,var(--purple) 54%,var(--pink)) 46%,var(--blue));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}.video-lesson-card:nth-child(even) .video-card-title{background-image:linear-gradient(100deg,color-mix(in srgb,var(--cyan) 66%,var(--blue)),var(--blue) 48%,color-mix(in srgb,var(--purple) 72%,var(--pink)))}
.video-lesson-info{overflow:hidden;isolation:isolate;border-color:color-mix(in srgb,var(--purple) 18%,var(--line));box-shadow:0 9px 0 color-mix(in srgb,var(--purple) 6%,var(--line)),0 24px 58px rgba(52,65,112,.12)}.video-lesson-info::before{content:"";position:absolute;z-index:-1;inset:-35% -28% auto 42%;height:210px;border-radius:50%;background:radial-gradient(circle,color-mix(in srgb,var(--purple) 15%,transparent),color-mix(in srgb,var(--cyan) 8%,transparent) 42%,transparent 72%);pointer-events:none}.video-lesson-info::after{content:"";position:absolute;z-index:-1;right:18px;top:18px;width:58px;height:58px;border-radius:18px;border:1px solid color-mix(in srgb,var(--purple) 14%,transparent);transform:rotate(13deg);opacity:.42;pointer-events:none}.video-lesson-heading{display:grid;gap:8px;min-width:0}.video-kicker-orb{width:10px;height:10px;border-radius:50%;display:inline-block;vertical-align:-1px;margin-right:7px;background:linear-gradient(145deg,var(--mint),var(--cyan));box-shadow:0 0 0 4px color-mix(in srgb,var(--mint) 14%,transparent),0 5px 12px color-mix(in srgb,var(--cyan) 20%,transparent)}.video-lesson-info h1.video-display-title{font-size:clamp(1.95rem,3.2vw,3rem);line-height:.98;letter-spacing:-.05em;padding-bottom:3px}.video-lesson-description{font-size:.84rem;line-height:1.68}.video-lesson-metrics span{position:relative;overflow:hidden;min-height:62px;justify-content:center;box-shadow:inset 0 1px 0 color-mix(in srgb,#fff 50%,transparent)}.video-lesson-metrics span::after{content:"";position:absolute;left:0;right:0;bottom:0;height:3px;border-radius:3px;background:linear-gradient(90deg,var(--purple),var(--pink));opacity:.72}.video-lesson-metrics span:nth-child(2)::after{background:linear-gradient(90deg,var(--cyan),var(--blue))}.video-lesson-metrics span:nth-child(3)::after{background:linear-gradient(90deg,var(--mint),var(--cyan))}.video-lesson-metrics strong{font-size:.82rem;color:var(--ink-strong)}.video-info-tags span{background:linear-gradient(145deg,color-mix(in srgb,var(--surface-lilac) 54%,var(--surface)),color-mix(in srgb,var(--surface-cyan) 36%,var(--surface)));border-color:color-mix(in srgb,var(--purple) 13%,var(--line));color:color-mix(in srgb,var(--ink-strong) 76%,var(--muted))}.video-comfort-note{display:flex;align-items:center;gap:10px;padding:11px 12px;border-radius:15px;background:linear-gradient(115deg,color-mix(in srgb,var(--surface-mint) 70%,var(--surface)),color-mix(in srgb,var(--surface-cyan) 45%,var(--surface)));border:1px solid color-mix(in srgb,var(--mint) 22%,var(--line));color:var(--muted);font-size:.67rem;font-weight:820;line-height:1.45}.video-comfort-note i{width:11px;height:11px;flex:0 0 auto;border-radius:50%;background:var(--mint);box-shadow:0 0 0 4px color-mix(in srgb,var(--mint) 13%,transparent),inset 0 -2px 3px color-mix(in srgb,var(--blue) 18%,transparent)}
.video-lesson-nav{display:grid;grid-template-columns:1fr;gap:9px;padding-top:4px}.video-lesson-nav .video-series-card{position:relative;min-width:0;min-height:76px;padding:8px;border:1px solid color-mix(in srgb,var(--purple) 13%,var(--line));border-radius:18px;background:linear-gradient(120deg,color-mix(in srgb,var(--surface-lilac) 44%,var(--surface)),var(--surface) 58%,color-mix(in srgb,var(--surface-cyan) 35%,var(--surface)));display:grid;grid-template-columns:86px minmax(0,1fr) 30px;align-items:center;gap:10px;text-align:left;text-decoration:none;box-shadow:0 4px 0 color-mix(in srgb,var(--line-strong) 46%,transparent);overflow:hidden;transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease}.video-series-card::after{content:"";position:absolute;inset:auto -14px -28px auto;width:78px;height:78px;border-radius:50%;background:radial-gradient(circle,color-mix(in srgb,var(--purple) 13%,transparent),transparent 70%);pointer-events:none}.video-series-thumb{position:relative;width:86px;aspect-ratio:16/9;border-radius:12px;overflow:hidden;background:#151b31;border:1px solid color-mix(in srgb,var(--purple) 14%,var(--line));box-shadow:0 5px 12px rgba(36,45,83,.12)}.video-series-thumb img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .24s ease,filter .24s ease}.video-series-play{position:absolute;left:50%;top:50%;width:28px;height:28px;border-radius:10px;transform:translate(-50%,-50%);background:rgba(255,255,255,.9);box-shadow:0 4px 10px rgba(17,22,48,.22)}.video-series-play::before{content:"";position:absolute;left:11px;top:8px;border-left:9px solid #7359ef;border-top:6px solid transparent;border-bottom:6px solid transparent}.video-series-copy{min-width:0;display:grid;grid-template-columns:minmax(0,1fr) auto;gap:2px 7px;align-items:center}.video-series-copy small{grid-column:1/-1;color:var(--purple);font-size:.58rem;font-weight:950;letter-spacing:.06em;text-transform:uppercase}.video-series-copy strong{min-width:0;color:var(--ink-strong);font-size:.74rem;line-height:1.25;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.video-series-copy em{font-style:normal;color:var(--muted);font-size:.57rem;font-weight:950;letter-spacing:.08em}.video-lesson-nav .video-nav-arrow{width:28px;height:28px;border-radius:10px;background:linear-gradient(145deg,color-mix(in srgb,var(--surface-lilac) 82%,var(--surface)),color-mix(in srgb,var(--surface-cyan) 58%,var(--surface)));box-shadow:0 3px 0 color-mix(in srgb,var(--purple) 10%,var(--line));transition:transform .18s ease,box-shadow .18s ease}.video-lesson-nav .video-nav-arrow::before{left:8px;top:9px}.video-lesson-nav .video-nav-arrow.is-back::before{left:11px}
@media(hover:hover) and (pointer:fine){.video-collection-chip:hover{transform:translateY(-3px);border-color:color-mix(in srgb,var(--purple) 28%,var(--line));box-shadow:0 8px 0 color-mix(in srgb,var(--purple) 9%,var(--line)),0 18px 34px rgba(51,61,105,.11)}.video-collection-chip:hover .video-collection-go{transform:translateX(2px);box-shadow:0 2px 0 color-mix(in srgb,var(--purple) 13%,var(--line)),0 8px 18px color-mix(in srgb,var(--purple) 13%,transparent)}.video-lesson-nav .video-series-card:hover{transform:translateY(-3px);border-color:color-mix(in srgb,var(--purple) 28%,var(--line));box-shadow:0 7px 0 color-mix(in srgb,var(--purple) 8%,var(--line)),0 17px 30px rgba(47,59,106,.13)}.video-series-card:hover .video-series-thumb img{transform:scale(1.045);filter:saturate(1.05)}.video-series-card:hover .video-nav-arrow{transform:translateX(2px)}.video-series-card.is-previous:hover .video-nav-arrow{transform:translateX(-2px)}}
.video-collection-chip:focus-visible,.video-lesson-nav .video-series-card:focus-visible{outline:4px solid color-mix(in srgb,var(--blue) 34%,transparent);outline-offset:3px}
@media(max-width:520px){.video-collection-chip{grid-template-columns:40px minmax(0,1fr) 32px;min-width:218px;padding-inline:11px}.video-collection-go{width:30px;height:30px}.video-card-body::before{left:18px}.video-lesson-info h1.video-display-title{font-size:clamp(1.9rem,10vw,2.55rem)}.video-lesson-nav .video-series-card{grid-template-columns:82px minmax(0,1fr) 28px;padding:7px;gap:9px}.video-series-thumb{width:82px}.video-series-copy strong{font-size:.72rem}}
@media(max-width:360px){.video-lesson-nav .video-series-card{grid-template-columns:70px minmax(0,1fr) 26px;gap:7px}.video-series-thumb{width:70px;border-radius:10px}.video-series-copy strong{font-size:.68rem}.video-series-copy em{display:none}.video-lesson-metrics strong{font-size:.75rem}.video-display-title{background-image:linear-gradient(102deg,var(--purple),var(--blue) 76%,var(--cyan))}}
@media(prefers-reduced-motion:reduce){.video-library-section:target .video-library-head::after{animation:none}.video-collection-chip,.video-collection-go,.video-lesson-nav .video-series-card,.video-series-thumb img,.video-lesson-nav .video-nav-arrow{transition:none!important}}
@media(forced-colors:active){.video-display-title,.video-card-title{-webkit-text-fill-color:CanvasText;background:none;color:CanvasText;text-shadow:none}.video-collection-go,.video-comfort-note,.video-series-card,.video-series-thumb,.video-lesson-metrics span{background:Canvas;border:1px solid CanvasText;box-shadow:none}.video-library-head::after,.video-lesson-metrics span::after,.video-lesson-info::after{display:none}}
.video-lesson-nav a.video-series-card,.video-lesson-nav a.video-series-card.is-next{grid-template-columns:86px minmax(0,1fr) 30px;text-align:left}.video-lesson-nav a.video-series-card>span.video-series-thumb{display:block}.video-lesson-nav a.video-series-card>span.video-series-copy{display:grid}.video-lesson-nav a.video-series-card>.video-nav-arrow{grid-column:auto;grid-row:auto}
@media(max-width:520px){.video-lesson-nav a.video-series-card,.video-lesson-nav a.video-series-card.is-next{grid-template-columns:82px minmax(0,1fr) 28px;text-align:left}.video-lesson-nav a.video-series-card.is-next>span:first-child{grid-column:auto}.video-lesson-nav a.video-series-card.is-next>.video-nav-arrow{grid-column:auto;grid-row:auto}}
@media(max-width:360px){.video-lesson-nav a.video-series-card,.video-lesson-nav a.video-series-card.is-next{grid-template-columns:70px minmax(0,1fr) 26px}}

/* VIDEO-0075 — player reliability: clean mobile media viewport, pause glass, real speed chooser and immersive fullscreen. */
.video-surface{aspect-ratio:auto}
.video-media-viewport{position:relative;aspect-ratio:16/9;overflow:hidden;background:#050814;isolation:isolate}
.video-media-viewport video{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;background:#050814;display:block;transition:filter .2s ease,transform .2s ease}
.video-surface::before{display:none}
.video-media-viewport::before{content:"";position:absolute;z-index:4;inset:0;pointer-events:none;box-shadow:inset 0 0 0 1px rgba(255,255,255,.05),inset 0 -90px 80px -80px rgba(0,0,0,.55)}
.video-media-viewport::after{content:"";position:absolute;z-index:6;inset:0;pointer-events:none;opacity:0;background:linear-gradient(135deg,rgba(11,15,35,.12),rgba(91,69,152,.16));-webkit-backdrop-filter:blur(0) saturate(100%);backdrop-filter:blur(0) saturate(100%);transition:opacity .2s ease,-webkit-backdrop-filter .2s ease,backdrop-filter .2s ease}
.school-video-player.is-paused.has-started:not(.is-ended) .video-media-viewport::after{opacity:1;-webkit-backdrop-filter:blur(4.5px) saturate(92%);backdrop-filter:blur(4.5px) saturate(92%)}
.school-video-player.is-paused.has-started:not(.is-ended) .video-media-viewport video{filter:saturate(.94) brightness(.96)}
.video-speed-wrap{position:relative;display:grid;place-items:center;flex:0 0 auto}
.video-speed-menu{position:absolute;z-index:22;right:0;bottom:calc(100% + 10px);width:190px;padding:8px;border:1px solid rgba(255,255,255,.18);border-radius:18px;background:linear-gradient(145deg,rgba(19,23,48,.97),rgba(37,29,72,.97));box-shadow:0 18px 42px rgba(0,0,0,.35),inset 0 1px 0 rgba(255,255,255,.08);-webkit-backdrop-filter:blur(14px) saturate(120%);backdrop-filter:blur(14px) saturate(120%);grid-template-columns:repeat(2,minmax(0,1fr));gap:6px}
.video-speed-menu:not([hidden]){display:grid}
.video-speed-menu button{min-width:0;min-height:44px;padding:0 8px;border:1px solid rgba(255,255,255,.1);border-radius:12px;background:rgba(255,255,255,.07);color:#fff;font:inherit;font-size:.68rem;font-weight:950;cursor:pointer;transition:transform .14s ease,background .14s ease,border-color .14s ease}
.video-speed-menu button[aria-checked="true"]{background:linear-gradient(145deg,rgba(132,107,255,.5),rgba(88,150,246,.34));border-color:rgba(193,184,255,.58);box-shadow:inset 0 1px 0 rgba(255,255,255,.16)}
.video-speed-menu button:focus-visible{outline:3px solid rgba(167,188,255,.78);outline-offset:2px}
@media(hover:hover) and (pointer:fine){.video-speed-menu button:hover{transform:translateY(-1px);background:rgba(255,255,255,.14)}}
.video-stage-card{scroll-margin-top:86px;scroll-margin-bottom:112px}

@media(max-width:980px){
  .video-watch-body .site-header{position:relative;top:auto}
  .video-surface{overflow:hidden;border-radius:22px;background:linear-gradient(180deg,#080d1c,#0e1427)}
  .video-media-viewport{border-radius:21px 21px 0 0}
  .video-controls{position:relative;left:auto;right:auto;bottom:auto;padding:10px 9px 9px;background:linear-gradient(180deg,#0c1225,#080d1c);border-top:1px solid rgba(255,255,255,.08);opacity:1;transform:none}
  .school-video-player.is-playing.is-controls-hidden .video-controls{opacity:1;transform:none;pointer-events:auto}
  .school-video-player.is-playing.is-controls-hidden{cursor:auto}
  .video-seek-wrap{margin-bottom:5px}
  .video-control-row{min-height:46px}
  .video-speed-wrap{position:static}
  .video-speed-menu{left:8px;right:8px;top:8px;bottom:auto;width:auto;grid-template-columns:repeat(6,minmax(0,1fr));padding:6px;border-radius:15px}
  .video-speed-menu button{min-height:44px;padding-inline:2px;font-size:.61rem;border-radius:10px}
  .school-video-player.is-speed-open .video-controls{padding-top:66px}
  html.video-compact-player-focus .mobile-nav,html.video-compact-player-focus .school-assistant{opacity:0!important;visibility:hidden!important;pointer-events:none!important;transform:translateY(16px) scale(.97)!important;transition:opacity .16s ease,transform .16s ease,visibility .16s ease!important}
}
@media(max-width:380px){
  .video-controls{padding-inline:7px}
  .video-speed-menu{left:6px;right:6px;gap:4px}
  .video-speed-menu button{font-size:.58rem}
}

html.video-fullscreen-active{background:#030611}
html.video-fullscreen-active body{overflow:hidden;background:#030611}
html.video-fullscreen-active .site-header,html.video-fullscreen-active .mobile-nav,html.video-fullscreen-active .school-assistant{display:none!important}
.school-video-player:fullscreen,.school-video-player:-webkit-full-screen{width:100vw;height:100vh;max-width:none;margin:0;padding:0;background:#030611;display:grid;place-items:center;outline:0}
.school-video-player:fullscreen .video-depth-frame,.school-video-player:-webkit-full-screen .video-depth-frame{width:100%;height:100%;padding:0;border:0;border-radius:0;background:#030611;box-shadow:none;display:grid;place-items:center}
.school-video-player:fullscreen .video-depth-frame::before,.school-video-player:-webkit-full-screen .video-depth-frame::before,.school-video-player:fullscreen .video-frame-edge,.school-video-player:-webkit-full-screen .video-frame-edge,.school-video-player:fullscreen .video-keyboard-hint,.school-video-player:-webkit-full-screen .video-keyboard-hint{display:none}
.school-video-player:fullscreen .video-surface,.school-video-player:-webkit-full-screen .video-surface{position:relative;width:100%;height:100%;border:0;border-radius:0;background:#030611;box-shadow:none;overflow:hidden}
.school-video-player:fullscreen .video-media-viewport,.school-video-player:-webkit-full-screen .video-media-viewport{width:100%;height:100%;aspect-ratio:auto;border-radius:0}
.school-video-player:fullscreen .video-controls,.school-video-player:-webkit-full-screen .video-controls{position:absolute!important;z-index:30;left:0!important;right:0!important;top:auto!important;bottom:0!important;padding:46px max(14px,env(safe-area-inset-right)) max(14px,env(safe-area-inset-bottom)) max(14px,env(safe-area-inset-left))!important;background:linear-gradient(180deg,transparent,rgba(3,6,17,.76) 42%,rgba(3,6,17,.96))!important;border:0!important;border-radius:0!important;transform:none!important}
.school-video-player:fullscreen.is-playing.is-controls-hidden .video-controls,.school-video-player:-webkit-full-screen.is-playing.is-controls-hidden .video-controls{opacity:0;transform:translateY(8px)!important;pointer-events:none}
.school-video-player:fullscreen .video-speed-menu,.school-video-player:-webkit-full-screen .video-speed-menu{position:absolute;left:auto;right:0;top:auto;bottom:calc(100% + 10px);width:190px;grid-template-columns:repeat(2,minmax(0,1fr));padding:8px}
.school-video-player:fullscreen.is-speed-open .video-controls,.school-video-player:-webkit-full-screen.is-speed-open .video-controls{padding-top:46px!important}

@media(prefers-reduced-motion:reduce){.video-media-viewport::after,.video-media-viewport video,.video-speed-menu button,html.video-compact-player-focus .mobile-nav,html.video-compact-player-focus .school-assistant{transition:none!important}}
@media(forced-colors:active){.video-media-viewport::after{display:none}.video-speed-menu,.video-speed-menu button{background:Canvas;border:1px solid CanvasText;color:CanvasText;box-shadow:none}}

/* VIDEO-0075 — expressive hierarchy without turning every heading into decoration. */
.video-hub-copy h1{width:fit-content;max-width:100%;background:linear-gradient(105deg,var(--ink-strong) 0 18%,var(--purple) 34%,color-mix(in srgb,var(--purple) 58%,var(--pink)) 53%,var(--blue) 75%,color-mix(in srgb,var(--cyan) 72%,var(--blue)) 100%);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;text-shadow:0 18px 46px color-mix(in srgb,var(--purple) 10%,transparent);text-wrap:balance}
.video-learning-boundary h2{position:relative;width:fit-content;max-width:100%;padding-bottom:9px}
.video-learning-boundary h2::after{content:"";position:absolute;left:0;bottom:0;width:min(96px,55%);height:4px;border-radius:999px;background:linear-gradient(90deg,var(--mint),var(--cyan),var(--purple));opacity:.78}
@media(forced-colors:active){.video-hub-copy h1{-webkit-text-fill-color:CanvasText;background:none;color:CanvasText;text-shadow:none}.video-learning-boundary h2::after{display:none}}

/* VIDEO-0076 · Video Lab identity visual: a real School mini-player instead of a generic play tile. */
.video-prism-screen{display:block;padding:15px 16px 13px}.video-prism-screen::before{inset:9% 7%;border-radius:19px}.video-prism-screen>i{display:none}.video-prism-head{position:relative;z-index:5;display:flex;align-items:center;justify-content:space-between;gap:10px}.video-prism-brand{display:flex;align-items:center;gap:7px;min-width:0;color:#fff;font-size:.67rem;font-weight:900;letter-spacing:-.015em}.video-prism-brand img{width:20px;height:20px;filter:drop-shadow(0 2px 5px rgba(0,0,0,.22))}.video-prism-lab{padding:5px 7px;border-radius:9px;border:1px solid rgba(255,255,255,.13);background:rgba(255,255,255,.08);color:#e8e5ff;font-size:.5rem;font-weight:950;letter-spacing:.12em}.video-prism-glow{position:absolute;z-index:1;border-radius:50%;filter:blur(.2px);pointer-events:none}.video-prism-glow.is-a{width:150px;height:150px;left:-38px;top:22px;background:radial-gradient(circle,rgba(72,214,238,.2),transparent 68%)}.video-prism-glow.is-b{width:135px;height:135px;right:-30px;bottom:-17px;background:radial-gradient(circle,rgba(244,104,173,.18),transparent 69%)}
.video-prism-play{position:absolute;z-index:5;left:50%;top:50%;width:auto;height:auto;min-width:122px;min-height:64px;padding:9px 16px;border-radius:22px;border:1px solid rgba(255,255,255,.5);background:linear-gradient(145deg,rgba(255,255,255,.98),rgba(236,233,255,.96));box-shadow:0 9px 0 rgba(72,54,138,.3),0 20px 38px rgba(1,5,20,.32);display:flex;align-items:center;justify-content:center;gap:10px;color:#5d48ce;transform:translate(-50%,-50%) rotate(-1.5deg)}.video-prism-play::before{content:none}.video-prism-play>i{width:0;height:0;border-left:20px solid currentColor;border-top:12px solid transparent;border-bottom:12px solid transparent}.video-prism-play>strong{font-size:.7rem;font-weight:950}.video-prism-topic{position:absolute;z-index:4;left:16px;bottom:38px;padding:5px 8px;border-radius:9px;background:rgba(4,9,24,.5);border:1px solid rgba(255,255,255,.1);color:rgba(255,255,255,.78);font-size:.56rem;font-weight:900}.video-prism-controls{position:absolute;z-index:5;left:16px;right:16px;bottom:13px;display:grid;grid-template-columns:minmax(0,1fr) auto auto;gap:8px;align-items:center}.video-prism-track{height:4px;border-radius:999px;background:rgba(255,255,255,.15);overflow:hidden}.video-prism-track i{display:block;width:41%;height:100%;border-radius:inherit;background:linear-gradient(90deg,#78ddeb,#9a76ff,#f27cb9);transform-origin:left center}.video-prism-controls>b{font-size:.49rem;color:rgba(255,255,255,.62)}.video-prism-dots{display:flex;gap:4px}.video-prism-dots i{width:5px;height:5px;border-radius:50%;background:rgba(255,255,255,.38)}
.video-prism-badge{position:absolute;z-index:6;right:5%;bottom:13%;min-height:38px;padding:6px 9px 7px 7px;border-radius:13px;display:flex;align-items:center;gap:7px;background:var(--surface);border:1px solid var(--line);box-shadow:0 6px 0 color-mix(in srgb,var(--line-strong) 72%,transparent),0 14px 28px rgba(45,57,105,.12);color:var(--purple)}.video-prism-badge-icon{position:relative;width:27px;height:24px;border-radius:8px;background:linear-gradient(145deg,#17203b,#38265d);border:1px solid color-mix(in srgb,var(--purple) 18%,var(--line));box-shadow:inset 0 0 0 1px rgba(255,255,255,.06)}.video-prism-badge-icon::before{content:"";position:absolute;left:10px;top:7px;border-left:8px solid #fff;border-top:5px solid transparent;border-bottom:5px solid transparent}.video-prism-badge>b{font-size:.58rem;letter-spacing:.11em}.video-prism>b{display:none}
@keyframes video-prism-glow-drift{50%{transform:translate3d(6px,-5px,0) scale(1.05);opacity:.78}}@keyframes video-prism-progress{50%{transform:scaleX(.84);opacity:.74}}.video-prism-glow.is-a{animation:video-prism-glow-drift 6.6s ease-in-out infinite}.video-prism-glow.is-b{animation:video-prism-glow-drift 7.4s ease-in-out infinite reverse}.video-prism-track i{animation:video-prism-progress 3.9s ease-in-out infinite}
@media(max-width:520px){.video-prism-screen{padding:12px}.video-prism-brand{font-size:.59rem}.video-prism-brand img{width:18px;height:18px}.video-prism-lab{font-size:.45rem}.video-prism-play{min-width:102px;min-height:56px;padding:8px 13px;border-radius:19px}.video-prism-play>i{border-left-width:17px;border-top-width:10px;border-bottom-width:10px}.video-prism-play>strong{font-size:.62rem}.video-prism-topic{left:12px;bottom:34px}.video-prism-controls{left:12px;right:12px;bottom:11px}.video-prism-badge{right:3%;bottom:10%;min-height:34px;padding:5px 8px 6px 6px}.video-prism-badge-icon{width:24px;height:21px}.video-prism-badge-icon::before{left:9px;top:6px;border-left-width:7px;border-top-width:4px;border-bottom-width:4px}.video-prism-badge>b{font-size:.52rem}}
@media(max-width:360px){.video-prism-play{min-width:58px;width:58px;padding:0}.video-prism-play>strong{display:none}.video-prism-brand strong{font-size:.54rem}.video-prism-lab{display:none}.video-prism-badge>b{display:none}.video-prism-badge{padding:5px}}
@media(prefers-reduced-motion:reduce){.video-prism-glow,.video-prism-track i{animation:none!important}.video-prism-play{transition:none!important}}
@media(forced-colors:active){.video-prism-badge{background:Canvas;border:1px solid CanvasText;box-shadow:none}.video-prism-play{background:ButtonFace;color:ButtonText;border:1px solid ButtonText;box-shadow:none}.video-prism-glow{display:none}}

/* VIDEO-0077 · playful Video Lab hero identity + mobile landscape/fullscreen behavior. */
.video-prism{isolation:isolate}.video-prism::after{content:"";position:absolute;z-index:0;inset:20% 16% 9%;border-radius:50%;background:radial-gradient(circle,color-mix(in srgb,var(--purple) 16%,transparent),transparent 67%);filter:blur(10px);pointer-events:none}.video-prism-screen{width:76%;aspect-ratio:16/10;isolation:isolate;transition:transform .28s cubic-bezier(.2,.8,.2,1),box-shadow .28s ease}.video-prism-screen::after{content:"";position:absolute;z-index:1;inset:-45% 58% -35% -28%;background:radial-gradient(circle,rgba(89,220,239,.15),transparent 68%);pointer-events:none}.video-prism-scene{position:absolute;z-index:2;left:16px;right:16px;top:46px;bottom:34px;border-radius:18px;overflow:hidden;border:1px solid rgba(255,255,255,.075);background:radial-gradient(circle at 24% 23%,rgba(82,214,237,.16),transparent 36%),radial-gradient(circle at 78% 73%,rgba(245,105,176,.15),transparent 37%),linear-gradient(145deg,rgba(255,255,255,.025),rgba(255,255,255,.008));display:grid;place-items:center}.video-prism-grid{position:absolute;inset:0;opacity:.27;background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);background-size:34px 34px;mask-image:linear-gradient(110deg,transparent 0,#000 25%,#000 74%,transparent 100%)}
.video-prism-play{top:50%;z-index:7}.video-prism-wave{position:absolute;z-index:4;left:9%;bottom:12%;height:34px;display:flex;align-items:center;gap:4px;opacity:.73}.video-prism-wave i{width:4px;height:100%;border-radius:99px;background:linear-gradient(180deg,#91e9f1,#a17aff);transform-origin:center;transform:scaleY(.36)}.video-prism-wave i:nth-child(2),.video-prism-wave i:nth-child(6){transform:scaleY(.7)}.video-prism-wave i:nth-child(3),.video-prism-wave i:nth-child(5){transform:scaleY(.95)}.video-prism-wave i:nth-child(4){transform:scaleY(.54)}
.video-prism-spark{position:absolute;z-index:4;width:10px;height:10px;border-radius:4px;transform:rotate(45deg);background:linear-gradient(145deg,#fff6ad,#ffd668);box-shadow:0 0 0 4px rgba(255,222,108,.06)}.video-prism-spark::before,.video-prism-spark::after{content:"";position:absolute;inset:3px -4px;border-radius:99px;background:inherit}.video-prism-spark::after{transform:rotate(90deg)}.video-prism-spark.is-one{left:17%;top:22%;transform:rotate(45deg) scale(.76)}.video-prism-spark.is-two{right:16%;top:29%;transform:rotate(45deg) scale(.57);background:linear-gradient(145deg,#a6f3f7,#7bdde9)}.video-prism-spark.is-three{right:25%;bottom:19%;transform:rotate(45deg) scale(.48);background:linear-gradient(145deg,#ffd0e4,#f68ab8)}.video-prism-spark.is-four{left:31%;bottom:18%;transform:rotate(45deg) scale(.36);background:linear-gradient(145deg,#d8c9ff,#a98bff)}
.video-prism-controls{grid-template-columns:minmax(0,1fr) auto}.video-prism-dots{justify-self:end}.video-prism-track i{width:34%}.video-prism-orbit.is-three{width:52%;height:104%;transform:rotate(62deg) translateZ(1px);border-color:color-mix(in srgb,var(--cyan) 18%,transparent)}
.video-prism-satellite{position:absolute;z-index:6;background:var(--surface);border:1px solid color-mix(in srgb,var(--purple) 16%,var(--line));box-shadow:0 6px 0 color-mix(in srgb,var(--line-strong) 60%,transparent),0 18px 34px rgba(45,57,105,.12);pointer-events:none}.video-prism-satellite.is-star{left:4%;top:24%;width:48px;height:48px;border-radius:17px}.video-prism-satellite.is-star::before{content:"";position:absolute;left:16px;top:16px;width:16px;height:16px;border-radius:5px;transform:rotate(45deg);background:linear-gradient(145deg,#ffe77d,#ff9bc8);box-shadow:0 0 0 5px color-mix(in srgb,var(--pink) 8%,transparent)}.video-prism-satellite.is-sound{right:3%;top:30%;width:54px;height:44px;border-radius:16px;display:flex;align-items:center;justify-content:center;gap:4px}.video-prism-satellite.is-sound i{width:4px;border-radius:99px;background:linear-gradient(180deg,var(--cyan),var(--purple));height:13px}.video-prism-satellite.is-sound i:nth-child(2){height:25px}.video-prism-satellite.is-sound i:nth-child(3){height:19px}.video-prism-satellite.is-sound i:nth-child(4){height:9px}
@keyframes video-prism-orbit-sway{50%{opacity:.86}}@keyframes video-prism-spark-float{50%{translate:0 -5px;opacity:1}}@keyframes video-prism-wave-live{0%,100%{transform:scaleY(.34)}50%{transform:scaleY(1)}}@keyframes video-prism-play-breathe{50%{transform:translate(-50%,calc(-50% - 2px)) rotate(-.5deg);box-shadow:0 7px 0 rgba(72,54,138,.29),0 25px 42px rgba(1,5,20,.36)}}@keyframes video-prism-satellite-bob{50%{transform:translateY(-6px) rotate(2deg)}}
.video-prism-orbit{animation:video-prism-orbit-sway 10s ease-in-out infinite}.video-prism-orbit.is-two{animation-delay:-3.2s}.video-prism-orbit.is-three{animation-delay:-6.1s}.video-prism-spark{animation:video-prism-spark-float 4.9s ease-in-out infinite}.video-prism-spark.is-two{animation-delay:-1.5s}.video-prism-spark.is-three{animation-delay:-3s}.video-prism-spark.is-four{animation-delay:-4.1s}.video-prism-wave i{animation:video-prism-wave-live 1.9s ease-in-out infinite}.video-prism-wave i:nth-child(2){animation-delay:-.28s}.video-prism-wave i:nth-child(3){animation-delay:-.62s}.video-prism-wave i:nth-child(4){animation-delay:-.95s}.video-prism-wave i:nth-child(5){animation-delay:-1.22s}.video-prism-wave i:nth-child(6){animation-delay:-.58s}.video-prism-wave i:nth-child(7){animation-delay:-.17s}.video-prism-play{animation:video-prism-play-breathe 4.3s ease-in-out infinite}.video-prism-satellite{animation:video-prism-satellite-bob 6.4s ease-in-out infinite}.video-prism-satellite.is-sound{animation-delay:-2.9s}
@media(max-width:520px){.video-prism-scene{left:12px;right:12px;top:42px;bottom:31px;border-radius:15px}.video-prism-wave{left:7%;bottom:10%;height:27px}.video-prism-wave i{width:3px}.video-prism-satellite.is-star{left:1%;top:21%;width:40px;height:40px;border-radius:14px}.video-prism-satellite.is-star::before{left:14px;top:14px;width:12px;height:12px}.video-prism-satellite.is-sound{right:0;top:29%;width:45px;height:38px;border-radius:14px}.video-prism-satellite.is-sound i{width:3px}.video-prism-spark.is-four{display:none}}
@media(max-width:360px){.video-prism-satellite{display:none}.video-prism-orbit.is-three{display:none}.video-prism-wave{height:23px}.video-prism-spark.is-three{display:none}}

/* Fullscreen controls auto-hide on touch as well as mouse; inline landscape stays inside the visual viewport instead of stretching under browser chrome. */
.school-video-player:fullscreen.is-playing.is-controls-hidden,.school-video-player:-webkit-full-screen.is-playing.is-controls-hidden{cursor:none}
@media(max-width:980px) and (orientation:landscape) and (max-height:620px){
  .video-watch-page{padding-top:12px;gap:12px}.video-watch-context{margin-bottom:0}.video-watch-layout{gap:18px}.video-stage-card{display:grid;place-items:start center;min-height:0}.school-video-player:not(:fullscreen){width:min(100%,calc((var(--video-visual-height,100dvh) - 74px) * 1.7777778));margin-inline:auto;scroll-margin-top:8px;scroll-margin-bottom:8px}.school-video-player:not(:fullscreen) .video-depth-frame{padding:5px 5px 8px;border-radius:20px;box-shadow:0 6px 0 color-mix(in srgb,var(--line-strong) 36%,transparent),0 18px 38px rgba(42,55,103,.14)}.school-video-player:not(:fullscreen) .video-depth-frame::before,.school-video-player:not(:fullscreen) .video-frame-edge{display:none}.school-video-player:not(:fullscreen) .video-surface{border-radius:16px}.school-video-player:not(:fullscreen) .video-media-viewport{border-radius:15px 15px 0 0}.school-video-player:not(:fullscreen) .video-controls{padding:7px 8px 7px}.school-video-player:not(:fullscreen) .video-seek-wrap{height:16px;margin-bottom:3px}.school-video-player:not(:fullscreen) .video-seek{height:16px}.school-video-player:not(:fullscreen) .video-seek-buffer{top:6px}.school-video-player:not(:fullscreen) .video-control-row{min-height:40px;gap:5px}.school-video-player:not(:fullscreen) .video-control{width:40px;height:40px;flex-basis:40px;border-radius:11px}.school-video-player:not(:fullscreen) .video-speed{width:40px;flex-basis:40px}.school-video-player:not(:fullscreen) .video-volume-wrap{display:none}.school-video-player:not(:fullscreen) .video-time{font-size:.59rem}.school-video-player:not(:fullscreen) .video-keyboard-hint{display:none}.school-video-player:not(:fullscreen) .video-center-play{min-width:104px;min-height:56px;border-radius:18px}.video-lesson-info{position:static}
}
@media(max-width:740px) and (orientation:landscape) and (max-height:500px){.school-video-player:not(:fullscreen){width:min(100%,calc((var(--video-visual-height,100dvh) - 66px) * 1.7777778))}.school-video-player:not(:fullscreen) .video-back,.school-video-player:not(:fullscreen) .video-forward,.school-video-player:not(:fullscreen) .video-pip{display:none}.school-video-player:not(:fullscreen) .video-control-row{grid-template-columns:auto minmax(52px,1fr) auto}}
@media(prefers-reduced-motion:reduce){.video-prism-orbit,.video-prism-spark,.video-prism-wave i,.video-prism-play,.video-prism-satellite{animation:none!important}.video-prism-screen,.video-prism-satellite{transition:none!important}}
@media(forced-colors:active){.video-prism-satellite,.video-prism-scene{background:Canvas;border:1px solid CanvasText;box-shadow:none}.video-prism-grid,.video-prism-spark,.video-prism-wave,.video-prism::after{display:none}}

/* VIDEO-0078 · autonomous smooth Video Lab motion + stateful first-party controls. */
.video-hub-visual{pointer-events:none}
.video-prism-screen{transition:box-shadow .22s ease;will-change:transform;animation:video-prism-screen-drift 11.5s cubic-bezier(.45,.05,.55,.95) infinite}
.video-prism::before{will-change:transform;animation:video-prism-shell-drift 15s cubic-bezier(.45,.05,.55,.95) infinite}
.video-prism-badge{will-change:transform;animation:video-prism-badge-float 7.8s ease-in-out infinite}
.video-prism-satellite.is-star{animation-duration:7.1s}.video-prism-satellite.is-sound{animation-duration:8.3s}
@keyframes video-prism-screen-drift{0%,100%{transform:translate3d(0,0,24px) rotateX(.25deg) rotateY(-.45deg)}32%{transform:translate3d(-2px,-3px,27px) rotateX(-.35deg) rotateY(.35deg)}67%{transform:translate3d(2px,2px,25px) rotateX(.3deg) rotateY(.55deg)}}
@keyframes video-prism-shell-drift{0%,100%{transform:translate3d(0,0,-26px) rotate(0deg)}50%{transform:translate3d(0,-3px,-26px) rotate(.45deg)}}
@keyframes video-prism-badge-float{0%,100%{transform:translate3d(0,0,0) rotate(0deg)}50%{transform:translate3d(0,-4px,0) rotate(-.35deg)}}

.video-control{isolation:isolate;overflow:visible;background:linear-gradient(145deg,rgba(255,255,255,.105),rgba(255,255,255,.055));box-shadow:inset 0 1px 0 rgba(255,255,255,.08),0 3px 9px rgba(0,0,0,.12);transition:background .16s ease,transform .16s cubic-bezier(.2,.8,.2,1),box-shadow .16s ease,border-color .16s ease}
.video-control::before{content:"";position:absolute;z-index:-1;inset:3px;border-radius:10px;background:radial-gradient(circle at 30% 18%,rgba(255,255,255,.15),transparent 48%);opacity:.7;pointer-events:none}
@media(hover:hover) and (pointer:fine){.video-control:hover{transform:translateY(-1px);background:linear-gradient(145deg,rgba(255,255,255,.18),rgba(255,255,255,.08));border-color:rgba(255,255,255,.22);box-shadow:inset 0 1px 0 rgba(255,255,255,.12),0 5px 12px rgba(0,0,0,.2)}.video-control:active{transform:translateY(1px);box-shadow:inset 0 1px 0 rgba(255,255,255,.08),0 1px 5px rgba(0,0,0,.18)}}

.video-glyph.is-volume{position:relative;width:24px;height:20px;border:0!important;margin:0;background:none}
.video-glyph.is-volume::before{content:"";position:absolute;left:1px;top:7px;width:7px;height:8px;border-radius:2px 1px 1px 2px;background:currentColor}
.video-glyph.is-volume::after{content:"";position:absolute;left:6px;top:4px;width:0;height:0;border-top:6px solid transparent;border-bottom:6px solid transparent;border-right:0;border-left:8px solid currentColor;transform:none;background:none;border-radius:0}
.video-glyph.is-volume i{position:absolute;top:50%;border:2px solid transparent;border-right-color:currentColor;border-radius:50%;transform:translateY(-50%);opacity:1;transition:opacity .14s ease,transform .14s ease}
.video-glyph.is-volume i:nth-child(1){left:10px;width:6px;height:9px}
.video-glyph.is-volume i:nth-child(2){left:10px;width:10px;height:14px}
.video-glyph.is-volume i:nth-child(3){left:10px;width:15px;height:19px}
.video-mute[data-volume-level="low"] .video-glyph.is-volume i:nth-child(n+2),.video-mute[data-volume-level="mid"] .video-glyph.is-volume i:nth-child(3),.video-mute[data-volume-level="muted"] .video-glyph.is-volume i{opacity:0;transform:translateY(-50%) scale(.72)}
.video-mute[data-volume-level="muted"]::after{content:"";position:absolute;z-index:3;left:10px;top:21px;width:25px;height:2px;border-radius:99px;background:currentColor;box-shadow:0 0 0 1px rgba(5,8,20,.24);transform:rotate(-45deg);transform-origin:center}
.video-mute[data-volume-level="high"] .video-glyph.is-volume i:nth-child(3){filter:drop-shadow(0 0 3px rgba(255,255,255,.22))}
.video-volume-wrap{position:relative}.video-volume-wrap::before{content:"";position:absolute;left:3px;right:3px;bottom:3px;height:1px;background:linear-gradient(90deg,transparent,rgba(255,255,255,.08),transparent);pointer-events:none}
.video-speed{font-variant-numeric:tabular-nums}.video-speed[aria-expanded="true"]{background:rgba(141,120,255,.22);border-color:rgba(174,158,255,.38);box-shadow:inset 0 1px 0 rgba(255,255,255,.13),0 0 0 3px rgba(141,120,255,.1)}

@media(prefers-reduced-motion:reduce){.video-prism-screen,.video-prism::before,.video-prism-badge{animation:none!important}.video-glyph.is-volume i,.video-control{transition:none!important}}
.video-mute[data-muted="true"] .video-glyph.is-volume::after{left:6px;top:4px;width:0;height:0;border-top:6px solid transparent;border-bottom:6px solid transparent;border-right:0;border-left:8px solid currentColor;border-radius:0;background:none;transform:none}

/* INTERACT-0079 · pointer clicks never draw the browser's default player rectangle. */
.school-video-player:focus{outline:none}
.school-video-player:focus-visible .video-depth-frame{box-shadow:0 9px 0 color-mix(in srgb,var(--purple) 11%,var(--line)),0 26px 58px rgba(37,48,94,.18),0 0 0 4px color-mix(in srgb,var(--blue) 24%,transparent)}
.video-control,.video-center-play,.video-speed-menu button,.video-seek,.video-volume{-webkit-tap-highlight-color:transparent}
@media(prefers-reduced-motion:reduce){.school-video-player:focus-visible .video-depth-frame{transition:none!important}}
.school-video-player{-webkit-tap-highlight-color:transparent}


/* CONTENT-0087 · Video Lab catalogue: unfiltered state shows every collection; chips are true filters. */
.video-collection-rail{scroll-margin-top:116px}.video-collection-all-mark{width:34px;height:34px;border-radius:12px;display:grid;grid-template-columns:repeat(2,7px);grid-template-rows:repeat(2,7px);place-content:center;gap:4px;background:linear-gradient(145deg,color-mix(in srgb,var(--surface-lilac) 78%,var(--surface)),color-mix(in srgb,var(--surface-cyan) 72%,var(--surface)));border:1px solid color-mix(in srgb,var(--purple) 16%,var(--line));box-shadow:0 3px 0 color-mix(in srgb,var(--purple) 9%,var(--line))}.video-collection-all-mark i{display:block;width:7px;height:7px;border-radius:3px;background:linear-gradient(145deg,var(--purple),var(--blue))}.video-collection-all-mark i:nth-child(2){background:linear-gradient(145deg,var(--pink),var(--purple))}.video-collection-all-mark i:nth-child(3){background:linear-gradient(145deg,var(--cyan),var(--blue))}.video-collection-all-mark i:nth-child(4){background:linear-gradient(145deg,var(--mint),var(--cyan))}.video-collection-all.is-active .video-collection-all-mark{border-color:color-mix(in srgb,var(--purple) 32%,var(--line));box-shadow:0 3px 0 color-mix(in srgb,var(--purple) 15%,var(--line)),0 9px 22px color-mix(in srgb,var(--purple) 10%,transparent)}
.video-library-stack{display:grid;gap:72px}.video-library-stack.is-filtered{gap:0}.video-library-stack.is-all .video-library-section+ .video-library-section{position:relative;padding-top:8px}.video-library-stack.is-all .video-library-section+ .video-library-section::before{content:"";position:absolute;left:0;right:0;top:-34px;height:1px;background:linear-gradient(90deg,transparent,color-mix(in srgb,var(--purple) 15%,var(--line)),color-mix(in srgb,var(--cyan) 14%,var(--line)),transparent)}
.video-lesson-card{isolation:isolate}.video-card-media::before{content:"";position:absolute;z-index:4;inset:0;pointer-events:none;background:linear-gradient(112deg,transparent 24%,rgba(255,255,255,.17) 46%,transparent 63%);transform:translateX(-72%);opacity:0}.video-card-play{transition:transform .2s ease,box-shadow .2s ease}.video-card-cta .video-card-arrow{transition:transform .18s ease}.video-lesson-card:focus-within{border-color:color-mix(in srgb,var(--purple) 28%,var(--line));box-shadow:0 10px 0 color-mix(in srgb,var(--purple) 8%,var(--line)),0 26px 56px rgba(45,56,102,.15)}
@keyframes video-card-sheen{0%{transform:translateX(-72%);opacity:0}22%{opacity:.72}100%{transform:translateX(72%);opacity:0}}
@media(hover:hover) and (pointer:fine){.video-lesson-card:hover .video-card-media::before{animation:video-card-sheen .72s ease-out both}.video-lesson-card:hover .video-card-play{transform:translate(-50%,-50%) scale(1.06);box-shadow:0 7px 0 rgba(64,50,130,.28),0 20px 36px rgba(24,27,67,.25)}.video-lesson-card:hover .video-card-cta .video-card-arrow{transform:translateX(3px)}}
@media(max-width:520px){.video-library-stack{gap:54px}.video-library-stack.is-all .video-library-section+ .video-library-section::before{top:-27px}.video-collection-all-mark{width:32px;height:32px}}
@media(prefers-reduced-motion:reduce){.video-card-media::before{animation:none!important;display:none}.video-card-play,.video-card-cta .video-card-arrow{transition:none!important}}
@media(forced-colors:active){.video-collection-all-mark{background:Canvas;border:1px solid CanvasText;box-shadow:none}.video-collection-all-mark i{background:CanvasText}.video-library-stack.is-all .video-library-section+ .video-library-section::before{background:CanvasText}}