body, html { margin: 0; padding: 0; height: 100%; font-family: Arial, sans-serif; background-color: #f0f2f5; color: #333; }
    .container { display: flex; flex-direction: column; align-items: center; justify-content: center; height: 100%; text-align: center; }
    .main-content { width: 90%; max-width: 800px; background: white; padding: 20px; border-radius: 8px; box-shadow: 0 4px 8px rgba(0,0,0,0.1); }
    .videos { display: flex; justify-content: space-around; margin-bottom: 20px; gap: 10px; }
    video { width: 45%; height: auto; background-color: #222; border-radius: 8px; border: 2px solid #ddd; }
    .controls { display: flex; flex-direction: column; gap: 15px; }
    .room-controls, .media-controls { display: flex; justify-content: center; gap: 10px; }
    #roomInput { padding: 10px; font-size: 16px; border: 1px solid #ccc; border-radius: 4px; }
    button { padding: 10px 20px; font-size: 16px; cursor: pointer; border: none; border-radius: 4px; background-color: #007bff; color: white; transition: background-color 0.3s; }
    button:hover { background-color: #0056b3; }
    button:disabled { background-color: #ccc; cursor: not-allowed; }
    #message { margin-top: 20px; font-size: 18px; color: #555; min-height: 25px; }