.demo-container {
            --demo-bg-primary: #ffffff;
            --demo-bg-secondary: #f8f9fa;
            --demo-text-primary: #212529;
            --demo-text-secondary: #6c757d;
            --demo-border: #dee2e6;
            --demo-accent: #007bff;
            
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            background-color: var(--demo-bg-primary);
            color: var(--demo-text-primary);
            padding: 2rem;
            border-radius: 12px;
            border: 1px solid var(--demo-border);
            transition: all 0.3s ease;
            max-width: 600px;
            margin: 0 auto;
        }
        
        @media (prefers-color-scheme: dark) {
            .demo-container {
                --demo-bg-primary: #1a1a1a;
                --demo-bg-secondary: #2d2d2d;
                --demo-text-primary: #ffffff;
                --demo-text-secondary: #b3b3b3;
                --demo-border: #404040;
                --demo-accent: #4dabf7;
            }
        }
        
        .demo-header {
            text-align: center;
            margin-bottom: 2rem;
        }
        
        .demo-title {
            font-size: 1.5rem;
            font-weight: 600;
            margin-bottom: 0.5rem;
            color: var(--demo-text-primary);
        }
        
        .demo-subtitle {
            color: var(--demo-text-secondary);
            font-size: 0.9rem;
        }
        
        .demo-content {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1rem;
            margin-bottom: 2rem;
        }
        
        .demo-card {
            background-color: var(--demo-bg-secondary);
            padding: 1.5rem;
            border-radius: 8px;
            border: 1px solid var(--demo-border);
        }
        
        .demo-card h4 {
            margin: 0 0 1rem 0;
            color: var(--demo-accent);
            font-size: 1.1rem;
        }
        
        .demo-card p {
            margin: 0;
            line-height: 1.5;
            color: var(--demo-text-secondary);
        }
        
        .demo-button {
            background-color: var(--demo-accent);
            color: white;
            border: none;
            padding: 0.75rem 1.5rem;
            border-radius: 6px;
            font-size: 0.9rem;
            cursor: pointer;
            transition: opacity 0.2s ease;
            display: block;
            margin: 0 auto;
        }
        
        .demo-button:hover {
            opacity: 0.9;
        }
        
        .theme-indicator {
            display: inline-block;
            padding: 0.25rem 0.75rem;
            background-color: var(--demo-bg-secondary);
            border: 1px solid var(--demo-border);
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 500;
            color: var(--demo-text-secondary);
        }
        
        @media (max-width: 600px) {
            .demo-content {
                grid-template-columns: 1fr;
            }
        }