:root{--ink:#102d40;--muted:#506476;--blue:#075e96;--line:#cedde7;--paper:#f4f8fb;--accent:#bbf5dd;--radius:18px}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:24px}body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.6 system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}a{color:var(--blue);text-underline-offset:3px}a:hover{color:#003d65}button,input{font:inherit}button,a,input{-webkit-tap-highlight-color:transparent}:focus-visible{outline:3px solid #d57900;outline-offset:4px}header,main,footer{max-width:1240px;margin:auto;padding:24px}header{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;border-bottom:1px solid var(--line)}.brand{font-size:1.25rem;font-weight:800;text-decoration:none;color:var(--ink)}nav{display:flex;gap:24px;flex-wrap:wrap}.intro{padding:46px 0 30px;max-width:850px}.eyebrow{text-transform:uppercase;letter-spacing:.12em;font-weight:700;font-size:.76rem;color:var(--muted);margin:0 0 12px}h1{font-size:clamp(2.5rem,5.5vw,4.5rem);letter-spacing:-.05em;line-height:1.05;margin:0 0 24px}h2{line-height:1.2;letter-spacing:-.025em}h3{line-height:1.3}.lead{max-width:70ch;font-size:1.12rem}.facts{display:flex;gap:10px;flex-wrap:wrap;margin:24px 0}.facts span{background:#e3eef5;border-radius:30px;padding:6px 14px;font-size:.88rem}.intro-actions{display:flex;gap:24px;align-items:center;flex-wrap:wrap}.button,button{border:0;border-radius:8px;background:var(--blue);color:white;text-decoration:none;padding:10px 16px;font-weight:650;cursor:pointer}.button:hover,button:hover{background:#003e65;color:white}.note{border-left:4px solid #238570;border-radius:0 var(--radius) var(--radius) 0;background:#e7f3ee;padding:18px 24px;margin:12px 0 44px}.note h2{font-size:1.18rem;margin-top:0}.note p{margin:8px 0;max-width:100ch}.section-heading{display:flex;justify-content:space-between;gap:28px;align-items:center;flex-wrap:wrap}.section-heading h2{font-size:2rem;margin:0}.filter label{display:block;font-weight:650;font-size:.85rem}.filter input{border:1px solid #8ca3b3;background:white;border-radius:8px;padding:10px;width:300px;max-width:100%}.filter p{font-size:.8rem;margin:4px 0;color:var(--muted)}.format-links{gap:8px;margin:20px 0 28px}.format-links a{font-weight:650;padding:3px 9px;border:1px solid var(--line);border-radius:6px;background:white;text-decoration:none;font-size:.84rem}.samples{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}.sample{background:white;border:1px solid var(--line);border-radius:var(--radius);padding:24px;min-width:0;scroll-margin-top:20px}.sample[hidden]{display:none}.card-head{display:flex;justify-content:space-between;align-items:center;gap:12px}.badge{font-size:.78rem;background:var(--accent);padding:3px 10px;border-radius:5px;font-weight:800;color:#164d3c}.kind{font-size:.76rem;color:var(--muted);text-align:right}.sample h2{font-size:1.45rem;margin:14px 0 18px}.video-frame{background:#102437;overflow:hidden;border-radius:9px;width:100%;aspect-ratio:16/9}.video-frame video{width:100%;height:100%;display:block}.video-js{width:100%;height:100%;font-size:12px}.video-js .vjs-big-play-button{border:0;border-radius:50%;height:2em;width:2em;line-height:2em;left:50%;top:50%;transform:translate(-50%,-50%);margin:0}.description{font-size:.93rem;min-height:3em;margin-bottom:10px}.codec{font-size:.76rem;color:var(--muted);padding-bottom:12px;border-bottom:1px solid var(--line);overflow-wrap:anywhere}.player{font-size:.84rem;font-weight:600}.route{font-size:.8rem;color:var(--muted);min-height:3em}.actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}.actions button{font-size:.83rem;padding:10px 12px;min-height:44px}.secondary{background:#edf3f8;color:var(--ink);border:1px solid #cbd9e3}.secondary:hover{background:#d9e9f3;color:var(--ink)}button:disabled{opacity:.6;cursor:default;background:#e8edf0;color:#425b6c}.status{min-height:3.5em;font-size:.8rem;color:var(--muted)}.downloads{display:flex;gap:16px;flex-wrap:wrap;border-top:1px solid var(--line);padding-top:12px;font-size:.83rem;font-weight:650}.explanation{padding:48px 0 20px;max-width:100ch}.explanation h2{font-size:2rem}footer{display:flex;gap:20px;justify-content:space-between;align-items:center;flex-wrap:wrap;border-top:1px solid var(--line);font-size:.84rem;color:var(--muted);margin-top:30px}.skip{position:absolute;left:-9999px}.skip:focus{left:12px;top:12px;background:white;padding:12px;z-index:9999}@media(max-width:800px){.samples{grid-template-columns:1fr}.intro{padding-top:30px}.sample{padding:18px}header,main,footer{padding:18px}.kind{max-width:58%}.status,.route,.description{min-height:0}.filter{width:100%}.filter input{width:100%}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

@media print{header nav,.intro-actions,.filter,.format-links,.video-frame,.actions,.status{display:none}.samples{display:block}.sample{break-inside:avoid;margin-bottom:18px}body{background:white}a{color:#102d40}}
