*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:#0f0f0f;color:#e0e0e0;height:100dvh;overflow:hidden}#app{height:100dvh;display:flex;flex-direction:column}#lobby{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100dvh;gap:16px}#lobby h1{font-size:2.5rem;color:#fff}#lobby p{color:#888;margin-bottom:16px}#lobby-form,#join-section{display:flex;flex-direction:column;align-items:center;gap:12px}input[type=text]{padding:12px 16px;border:1px solid #333;border-radius:8px;background:#1a1a1a;color:#fff;font-size:1rem;outline:none;width:300px}input[type=text]:focus{border-color:#4a9eff}button{padding:12px 24px;border:none;border-radius:8px;font-size:1rem;cursor:pointer;background:#4a9eff;color:#fff;transition:background .2s}button:hover{background:#3a8eef}#connection-status{display:none;background:#b8860b;color:#fff;text-align:center;padding:8px;font-size:.85rem;flex-shrink:0}#room{display:flex;flex-direction:column;height:100dvh}#room-header{display:flex;align-items:center;justify-content:space-between;padding:12px 20px;background:#1a1a1a;border-bottom:1px solid #2a2a2a}#room-header h2{font-size:1.1rem;color:#fff}#share-section{display:flex;gap:8px;align-items:center}#share-link{width:320px;padding:8px 12px;font-size:.85rem}#copy-link-btn{padding:8px 16px;font-size:.85rem}#room-content{display:flex;flex:1;overflow:hidden}#video-grid{flex:1;display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:8px;padding:8px;align-content:start;overflow-y:auto}.video-container{position:relative;background:#1a1a1a;border-radius:12px;overflow:hidden;aspect-ratio:16/9;transition:box-shadow .15s ease}.video-container video{width:100%;height:100%;object-fit:cover}#cam-overlay{display:none;position:absolute;top:8px;right:8px;width:25%;min-width:80px;max-width:180px;border-radius:8px;border:2px solid #333;object-fit:cover;z-index:2;aspect-ratio:4/3}#cam-overlay.visible{display:block}.video-label{position:absolute;bottom:8px;left:8px;background:#000000b3;padding:4px 10px;border-radius:4px;font-size:.85rem}#sidebar{width:300px;display:flex;flex-direction:column;border-left:1px solid #2a2a2a;background:#141414}#participants{padding:12px;border-bottom:1px solid #2a2a2a}#participants h3{font-size:.9rem;margin-bottom:8px;color:#888}#participant-list{list-style:none}#participant-list li{padding:4px 0;font-size:.9rem}#chat{flex:1;display:flex;flex-direction:column;overflow:hidden}#chat-messages{flex:1;overflow-y:auto;padding:12px}#chat-messages .msg{margin-bottom:8px}#chat-messages .msg-name{font-weight:600;color:#4a9eff;font-size:.8rem}#chat-messages .msg-text{font-size:.9rem;word-break:break-word}#chat-form{display:flex;padding:8px;gap:8px;border-top:1px solid #2a2a2a}#chat-form input{flex:1;width:auto;padding:8px 12px;font-size:.85rem}#chat-form button{padding:8px 16px;font-size:.85rem}#controls{display:flex;justify-content:center;flex-wrap:wrap;gap:8px;padding:12px 16px;background:#1a1a1a;border-top:1px solid #2a2a2a;flex-shrink:0}.control-btn{padding:10px 20px;border-radius:24px;font-size:.9rem;background:#2a2a2a;white-space:nowrap}.control-btn:hover{background:#3a3a3a}.control-btn.active{background:#4a9eff}select.control-btn{background:#2a2a2a;color:#e0e0e0;border:1px solid #444;max-width:160px;cursor:pointer}.control-btn.danger{background:#d9534f}.control-btn.danger:hover{background:#c9302c}#qr-modal{position:fixed;top:0;right:0;bottom:0;left:0;background:#000c;z-index:1000;display:flex;align-items:center;justify-content:center}#qr-modal-content{background:#fff;border-radius:16px;padding:24px;display:flex;flex-direction:column;align-items:center;gap:16px}#qr-canvas{border-radius:8px}#qr-close{background:#333}#debug-panel{display:none;position:fixed;bottom:0;left:0;right:0;height:40vh;background:#000000f2;border-top:2px solid #4a9eff;z-index:9999;flex-direction:column;font-family:monospace;font-size:.75rem}#debug-panel.visible{display:flex}#debug-header{display:flex;align-items:center;gap:8px;padding:6px 10px;background:#1a1a2e;border-bottom:1px solid #333}#debug-header span{flex:1;font-weight:700;color:#4a9eff}#debug-header button{padding:2px 8px;font-size:.7rem;background:#333;border-radius:4px}#debug-log{flex:1;overflow-y:auto;padding:6px}.debug-entry{padding:1px 0;color:#aaa;word-break:break-all}.debug-entry b{color:#4a9eff}.debug-ws b{color:#5dba5d}.debug-rtc b{color:#e8a838}.debug-ice b{color:#c678dd}.debug-error b{color:#e06c75}.debug-media b{color:#56b6c2}@media (max-width: 768px){#room-header{padding:8px 12px}#room-content{flex-direction:column;min-height:0}#video-grid{flex:1;min-height:0;grid-template-columns:1fr 1fr;grid-auto-rows:min-content;gap:4px;padding:4px}.video-container{border-radius:8px;aspect-ratio:4/3}#sidebar{width:100%;max-height:30dvh;border-left:none;border-top:1px solid #2a2a2a;flex-shrink:0}#participants{padding:8px}#chat-form input{min-width:0}#controls{padding:8px 12px;gap:6px}.control-btn{padding:8px 12px;font-size:.8rem}select.control-btn{max-width:120px}#share-section{display:none}#lobby h1{font-size:1.8rem}input[type=text]{width:260px}}