:root{color-scheme:light;--fg: #1a1a1a;--muted: #6b6b6b;--bg: #fafafa;--card: #fff;--line: #e3e3e3;--accent: #2b59c3;--danger: #b3261e;--ok: #1e7e34}*{box-sizing:border-box}body{margin:0;font:15px/1.45 system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:var(--fg);background:var(--bg)}main{max-width:760px;margin:0 auto;padding:24px 16px 48px}h1{font-size:22px;margin:0 0 16px}h2{font-size:16px;margin:20px 0 8px}.card{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:16px;margin-bottom:14px}label{display:block;font-size:13px;color:var(--muted);margin:10px 0 4px}input{width:100%;padding:9px 10px;border:1px solid var(--line);border-radius:8px;font:inherit}button{font:inherit;padding:9px 14px;border-radius:8px;border:1px solid var(--accent);background:var(--accent);color:#fff;cursor:pointer}button.secondary{background:#fff;color:var(--accent)}button.danger{background:var(--danger);border-color:var(--danger)}button:disabled{opacity:.5;cursor:default}.row{display:flex;gap:10px;flex-wrap:wrap;align-items:center}.muted{color:var(--muted);font-size:13px}.err{color:var(--danger);font-size:13px}ul.plain{list-style:none;padding:0;margin:0}ul.plain li{padding:8px 0;border-top:1px solid var(--line)}ul.plain li:first-child{border-top:0}.pill{display:inline-block;font-size:12px;padding:2px 8px;border-radius:999px;border:1px solid var(--line);color:var(--muted);margin-left:6px}.pill.on,.pill.live{border-color:var(--ok);color:var(--ok)}.pill.err{border-color:var(--danger);color:var(--danger)}.speaking{width:10px;height:10px;border-radius:50%;background:var(--line);display:inline-block;margin-right:8px;vertical-align:middle}.speaking.on{background:var(--ok);box-shadow:0 0 0 4px #1e7e3426}.transcript{max-height:320px;overflow-y:auto;font-size:14px}.transcript p{margin:6px 0}.transcript b{color:var(--accent)}.transcript .agent b{color:#7a3fb3}a{color:var(--accent)}code{background:#f0f0f0;padding:1px 5px;border-radius:4px}.video-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:12px;margin:16px 0}.tile{position:relative;margin:0;background:#000;border-radius:10px;overflow:hidden;aspect-ratio:4 / 3;outline:3px solid transparent}.tile.speaking-tile{outline-color:#2e9e5b}.tile video{width:100%;height:100%;object-fit:cover;display:block}.tile video.mirror{transform:scaleX(-1)}.tile figcaption{position:absolute;left:8px;bottom:8px;padding:2px 8px;border-radius:6px;background:#0000008c;color:#fff;font-size:13px}.chat-log{max-height:280px;overflow-y:auto;margin-bottom:10px}.chat-log p{margin:0 0 10px;white-space:pre-wrap;overflow-wrap:anywhere}.chat-log p.mine b{color:#3a5bd9}.chat-form{display:flex;gap:8px}.chat-form input{flex:1;min-width:0}