:root{color-scheme:dark;--bg:#101d29;--panel:#192b39;--ink:#eef4f6;--muted:#aebeca;--line:#3b5060;--cyan:#69d7cc;--amber:#ffbc74}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font-family:system-ui,-apple-system,sans-serif;line-height:1.5}
.shell{max-width:1320px;margin:auto;padding:22px}
header{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-bottom:18px}
h1{font-size:clamp(24px,3vw,34px);line-height:1.15;margin:2px 0 8px}
h2{font-size:18px;margin:0}
h3{font-size:14px;margin:12px 0 6px}
.eyebrow{color:var(--cyan);font-size:11px;letter-spacing:2px;margin:0}
.subtitle,.note{color:var(--muted);font-size:13px;margin:5px 0}
a{color:var(--cyan)}
.download{font-size:13px;border:1px solid var(--line);border-radius:8px;padding:9px 14px;white-space:nowrap;text-decoration:none}
.page-tabs{display:flex;gap:8px;flex-wrap:wrap;margin:0 0 18px}
.page-tabs a{display:block;border:1px solid var(--line);border-radius:8px;padding:8px 15px;color:var(--muted);font-size:13px;text-decoration:none}
.page-tabs a[aria-current=page]{border-color:var(--cyan);background:#233b4d;color:var(--cyan);font-weight:600}
.page-tabs a:focus-visible,a:focus-visible,button:focus-visible{outline:2px solid var(--cyan);outline-offset:3px}
.monitor{display:grid;grid-template-columns:1.55fr 1fr;gap:16px;align-items:start}
.panel{padding:18px;background:var(--panel);border:1px solid var(--line);border-radius:12px;margin-bottom:16px}
.panel-title{display:flex;align-items:flex-start;justify-content:space-between;gap:10px}
.status{border:1px solid var(--line);border-radius:20px;padding:3px 10px;font-size:12px;color:var(--amber);white-space:nowrap}
.video-frame{background:#08131c;aspect-ratio:16/9;margin:14px 0;overflow:hidden;border-radius:8px}
.video-frame iframe{width:100%;height:100%;border:0}
.prompt{border-left:3px solid var(--cyan);padding:8px 12px;margin:12px 0;color:#f1f7f8;font-size:14px}
.video-buttons{display:grid;gap:8px;margin-top:12px}
.video-choice{display:flex;justify-content:space-between;gap:12px;width:100%;text-align:left;background:#233b4d;border:1px solid var(--line);color:var(--ink);padding:10px 12px;border-radius:7px;font:inherit;cursor:pointer}
.video-choice small{color:var(--muted);white-space:nowrap}
.video-choice[aria-pressed=true]{border-color:var(--cyan);color:var(--cyan);background:#203d46}
.plain-links{padding-left:20px}
.reference-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.reference-grid ul{margin:6px 0;padding-left:18px}
.reference-grid li{margin:5px 0;font-size:13px}
.sources,footer{font-size:12px;color:var(--muted)}
footer{text-align:center;padding:10px}
p{margin:10px 0}
@media(max-width:850px){.monitor,.reference-grid{grid-template-columns:1fr}
header{align-items:flex-start;flex-direction:column}
}
@media(max-width:500px){.shell{padding:14px}
.page-tabs{gap:5px}
.page-tabs a{font-size:11px;padding:7px 9px}
.panel{padding:14px}
.panel-title{flex-direction:column}
.video-choice{font-size:13px}
}