body {
            font-family: Arial, sans-serif;
            margin: 0;
            padding: 20px;
            background: #f5f5f5;
            color: #333;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            background: white;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
        }
        header {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            padding: 2rem 1rem;
            text-align: center;
        }
        h1 {
            margin: 0 0 0.5rem 0;
            font-size: 2rem;
        }
        .test-card {
            background: #f8f9fa;
            border-radius: 8px;
            padding: 1.5rem;
            margin: 1.5rem;
        }
        .image-info {
            background: #e9ecef;
            padding: 1rem;
            border-radius: 6px;
            margin: 1rem 0;
            font-size: 0.9rem;
        }
        .stats {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 1rem;
            margin: 1rem 0;
        }
        .stat-item {
            background: white;
            padding: 1rem;
            border-radius: 6px;
            text-align: center;
        }
        footer {
            text-align: center;
            padding: 1.5rem;
            background: #2c3e50;
            color: white;
            margin-top: 2rem;
        }