            border-radius: 8px;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
            overflow: hidden;
        }
        .room-header {
            background: #007bff;
            color: white;
            padding: 20px;
            text-align: center;
        }
        .room-header h3 {
            margin: 0;
            font-size: 1.5em;
        }
        .room-controls {
            padding: 20px;
            border-bottom: 1px solid #eee;
            display: flex;
            gap: 10px;
   