* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: Arial, sans-serif;
    padding: 20px;
    background: #f5f5f5;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    background: white;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

h1 {
    text-align: center;
    margin-bottom: 20px;
    color: #333;
}

.room-controls {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    justify-content: center;
}

#room-id {
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 5px;
    width: 200px;
}

#join-btn {
    padding: 10px 20px;
    background: #007bff;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}

#join-btn:disabled {
    background: #6c757d;
}

.video-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 20px;
}

.video-wrapper {
    background: #000;
    border-radius: 5px;
    position: relative;
}

video {
    width: 100%;
    height: 300px;
    border-radius: 5px;
}

.video-wrapper label {
    position: absolute;
    bottom: 10px;
    left: 10px;
    background: rgba(0,0,0,0.7);
    color: white;
    padding: 5px 10px;
    border-radius: 3px;
    font-size: 12px;
}

.controls {
    display: flex;
    justify-content: center;
    gap: 10px;
}

.control-btn {
    padding: 10px 15px;
    border: 1px solid #ddd;
    background: white;
    border-radius: 5px;
    cursor: pointer;
}

.control-btn.end {
    background: #dc3545;
    color: white;
    border-color: #dc3545;
}

@media (max-width: 768px) {
    .video-container {
        grid-template-columns: 1fr;
    }
}