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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 20px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    background: white;
    border-radius: 20px;
    padding: 30px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

h1 {
    color: #333;
    margin-bottom: 30px;
    text-align: center;
    font-size: 2.5em;
}

.status-panel {
    background: #f5f5f5;
    border-radius: 10px;
    padding: 20px;
    margin-bottom: 20px;
    display: flex;
    gap: 30px;
    flex-wrap: wrap;
}

.status-item {
    display: flex;
    align-items: center;
    gap: 10px;
}

.label {
    font-weight: 600;
    color: #666;
}

.status {
    padding: 5px 15px;
    border-radius: 20px;
    font-weight: 600;
    font-size: 0.9em;
}

.status.connected {
    background: #4caf50;
    color: white;
}

.status.disconnected {
    background: #f44336;
    color: white;
}

.control-panel {
    display: flex;
    gap: 15px;
    justify-content: center;
    margin-bottom: 30px;
}

.btn {
    padding: 15px 30px;
    border: none;
    border-radius: 10px;
    font-size: 1.1em;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.btn:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

.btn:active:not(:disabled) {
    transform: translateY(0);
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.btn-secondary {
    background: #f44336;
    color: white;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.info-panel {
    background: #e3f2fd;
    border-radius: 10px;
    padding: 20px;
    margin-bottom: 30px;
}

.info-panel h3 {
    color: #1976d2;
    margin-bottom: 15px;
}

.info-panel ol {
    margin-left: 20px;
    color: #555;
    line-height: 1.8;
}

.info-panel code {
    background: #fff;
    padding: 2px 8px;
    border-radius: 4px;
    font-family: 'Courier New', monospace;
    color: #d32f2f;
}

.preview-panel {
    background: #000;
    border-radius: 10px;
    padding: 20px;
    text-align: center;
}

.preview-panel h3 {
    color: white;
    margin-bottom: 15px;
}

#previewVideo {
    max-width: 100%;
    border-radius: 8px;
    background: #333;
}

#previewCanvas {
    display: none;
}

@media (max-width: 768px) {
    .container {
        padding: 20px;
    }
    
    h1 {
        font-size: 1.8em;
    }
    
    .status-panel {
        flex-direction: column;
        gap: 15px;
    }
    
    .control-panel {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
    }
}