* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }

        body {
            background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
            color: #fff;
            min-height: 100vh;
            padding: 20px;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 20px;
        }

        header {
            text-align: center;
            margin-bottom: 40px;
        }

        #login {
            background: rgba(15, 52, 96, 0.3);
            border-radius: 15px;
            padding: 30px;
            max-width: 400px;
            margin: 0 auto;
        }

        #login input {
            width: 100%;
            padding: 12px;
            margin: 10px 0;
            border: none;
            border-radius: 8px;
            background: rgba(255,255,255,0.1);
            color: white;
            font-size: 16px;
        }

        #login button {
            width: 100%;
            padding: 12px;
            background: linear-gradient(90deg, #4cc9f0 0%, #4361ee 100%);
            border: none;
            border-radius: 8px;
            color: white;
            font-size: 16px;
            cursor: pointer;
            margin-top: 10px;
        }

        #room {
            display: none;
        }

        #controls {
            text-align: center;
            margin-bottom: 20px;
        }

        .control-btn {
            padding: 10px 20px;
            margin: 5px;
            background: rgba(255,255,255,0.1);
            border: 1px solid #4cc9f0;
            border-radius: 5px;
            color: white;
            cursor: pointer;
        }

        .control-btn.active {
            background: #4cc9f0;
            color: #1a1a2e;
        }

        #videos {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 20px;
            padding: 20px;
        }

        .video-container {
            position: relative;
            background: #0f3460;
            border-radius: 10px;
            overflow: hidden;
            aspect-ratio: 16/9;
        }

        .video-container video {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .video-label {
            position: absolute;
            bottom: 10px;
            left: 10px;
            background: rgba(0,0,0,0.5);
            padding: 5px 10px;
            border-radius: 5px;
            font-size: 12px;
        }

        .status {
            position: fixed;
            top: 20px;
            right: 20px;
            background: rgba(0,0,0,0.7);
            padding: 10px;
            border-radius: 5px;
            font-size: 14px;
        }

        #activeCount {
            color: #4cc9f0;
            font-weight: bold;
        }