:root{--bg: #0e1116;--panel: #171c24;--panel2: #1f2630;--text: #e7ecf3;--muted: #93a1b3;--accent: #4f8cff;--danger: #ff4d4f;--ok: #25c26e}*{box-sizing:border-box}[hidden]{display:none!important}body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text)}h1,h2{margin:0 0 12px}input,select,button{font:inherit}input,select{width:100%;padding:9px 11px;border-radius:8px;border:1px solid #2c3543;background:var(--panel2);color:var(--text);margin-top:4px}label{display:block;margin:10px 0;color:var(--muted);font-size:14px}button{cursor:pointer;border:none;border-radius:8px;padding:10px 14px;background:var(--accent);color:#fff;font-weight:600}button.ghost{background:#28323f;color:var(--text)}button:disabled{opacity:.5;cursor:default}.error{color:var(--danger);margin-top:8px;min-height:18px;font-size:14px}.login{display:grid;place-items:center;min-height:100vh;padding:20px}.login-card{background:var(--panel);padding:28px;border-radius:14px;width:320px;text-align:center}.login-card p{color:var(--muted);margin-top:0}.topbar{display:flex;align-items:center;gap:12px;padding:12px 18px;background:var(--panel);border-bottom:1px solid #232c38}.grow{flex:1}.badge{padding:4px 10px;border-radius:999px;background:#3a2326;color:var(--danger);font-size:12px;font-weight:700}.badge.live{background:#14361f;color:var(--ok)}.layout{display:grid;grid-template-columns:340px 1fr;gap:16px;padding:16px;align-items:start}.panel{background:var(--panel);border-radius:14px;padding:18px}.grow2{min-height:60vh}.row{margin-top:12px}.bg-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-top:6px}.bg-swatch{height:46px;border-radius:8px;cursor:pointer;border:2px solid transparent}.bg-swatch.active{border-color:#fff}.invite{margin-top:10px;font-size:13px;word-break:break-all;color:var(--muted)}.invite a{color:var(--accent)}.sep{border:none;border-top:1px solid #2a3340;margin:18px 0}.hint{color:var(--muted);font-size:12px;margin:8px 0 0}.tiles{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}.tile{position:relative;aspect-ratio:9/16;background:#0a0d12;border-radius:10px;overflow:hidden}.tile video{width:100%;height:100%;object-fit:cover}.tile .tag{position:absolute;left:6px;bottom:6px;background:#0009;padding:2px 8px;border-radius:6px;font-size:12px}.empty{color:var(--muted);padding:24px 0;text-align:center}.mixer{margin-top:16px;display:grid;gap:10px}.mix-row{display:grid;grid-template-columns:140px 1fr 44px;align-items:center;gap:10px;background:var(--panel2);padding:8px 10px;border-radius:10px}.mix-row input[type=range]{width:100%}.mix-row .nm{display:flex;gap:6px}.mix-row .nm input{padding:5px 8px}.controls{position:sticky;bottom:0;display:flex;align-items:center;gap:14px;padding:14px 18px;background:var(--panel);border-top:1px solid #232c38}button.start{background:var(--ok);font-size:16px;padding:12px 22px}button.stop{background:var(--danger);font-size:16px;padding:12px 22px}.ctl-msg{color:var(--muted);font-size:14px}@media (max-width: 820px){.layout{grid-template-columns:1fr}}