* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        
        body {
            background-color: #f8f9fa;
            color: #333;
            line-height: 1.6;
        }
        
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        
        header {
            background-color: #fff;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
            padding: 20px 0;
            position: sticky;
            top: 0;
            z-index: 100;
        }
        
        .logo {
            font-size: 1.8rem;
            font-weight: 700;
            color: rgb(197, 47, 47);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        
        .logo i {
            color: #ff6b6b;
        }
        
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        nav a {
            text-decoration: none;
            color: #555;
            margin-left: 25px;
            font-weight: 500;
            transition: color 0.3s;
        }
        
        nav a:hover {
            color: #1a73e8;
        }
        
        .hero {
            background-color: #fff;
            padding: 60px 0 40px;
            text-align: center;
            border-bottom: 1px solid #eee;
        }
        
        h1 {
            font-size: 2.5rem;
            color: #2c3e50;
            margin-bottom: 15px;
        }
        
        .subtitle {
            font-size: 1.2rem;
            color: #7f8c8d;
            max-width: 700px;
            margin: 0 auto 30px;
        }
        
        .divider {
            height: 1px;
            background-color: #eaeaea;
            margin: 40px 0;
        }
        
        .filters-section {
            background-color: #fff;
            padding: 30px;
            border-radius: 10px;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
            margin-bottom: 40px;
        }
        
        .section-title {
            font-size: 1.3rem;
            color: #2c3e50;
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid #f0f0f0;
        }
        
        .filters {
            display: flex;
            flex-wrap: wrap;
            gap: 30px;
        }
        
        .filter-group {
            flex: 1;
            min-width: 250px;
        }
        
        .filter-group label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
            color: #555;
        }
        
        .filter-input {
            width: 100%;
            padding: 12px 15px;
            border: 1px solid #ddd;
            border-radius: 6px;
            font-size: 1rem;
        }
        
        .filter-select {
            width: 100%;
            padding: 12px 15px;
            border: 1px solid #ddd;
            border-radius: 6px;
            font-size: 1rem;
            background-color: #fff;
            cursor: pointer;
        }
        
        .tests-section {
            margin-bottom: 50px;
        }
        
        .test-category {
            background-color: #fff;
            padding: 25px;
            border-radius: 10px;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
            margin-bottom: 30px;
        }
        
        .category-title {
            font-size: 1.4rem;
            color: #2c3e50;
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        
        .category-title i {
            color: rgb(197, 47, 47);
        }
        
        .test-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 20px;
        }
        
        .test-item {
            background-color: #f9f9f9;
            padding: 20px;
            border-radius: 8px;
            border-left: 4px solid #1a73e8;
            transition: transform 0.3s, box-shadow 0.3s;
        }
        
        .test-item:hover {
            transform: translateY(-5px);
            box-shadow: 0 6px 15px rgba(0, 0, 0, 0.08);
        }
        
        .test-title {
            font-size: 1.1rem;
            color: #2c3e50;
            margin-bottom: 10px;
        }
        
        .test-info {
            color: #7f8c8d;
            font-size: 0.9rem;
            margin-bottom: 15px;
        }
        
        .take-test-btn {
            display: inline-block;
            background-color: rgb(197, 47, 47);
            color: white;
            padding: 8px 18px;
            border-radius: 6px;
            text-decoration: none;
            font-weight: 600;
            transition: background-color 0.3s;
        }
        
        .take-test-btn:hover {
            background-color: #0d62d9;
        }
        
        .test-type-table {
            width: 100%;
            border-collapse: collapse;
            margin-top: 20px;
        }
        
        .test-type-table th {
            background-color: #f1f8ff;
            padding: 15px;
            text-align: left;
            color: #2c3e50;
            border-bottom: 2px solid #eaeaea;
        }
        
        .test-type-table td {
            padding: 15px;
            border-bottom: 1px solid #f0f0f0;
        }
        
        .test-type-table tr:hover {
            background-color: #f9f9f9;
        }
        
        .test-type {
            display: inline-block;
            padding: 4px 10px;
            border-radius: 4px;
            font-size: 0.8rem;
            font-weight: 600;
        }
        
        .academic-type {
            background-color: #e3f2fd;
            color: #1565c0;
        }
        
        .general-type {
            background-color: #e8f5e9;
            color: #2e7d32;
        }
        
        footer {
            background-color: #2c3e50;
            color: #ecf0f1;
            padding: 40px 0;
            text-align: center;
        }
        
        .footer-content {
            display: flex;
            flex-direction: column;
            align-items: center;
        }
        
        .footer-logo {
            font-size: 1.8rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 20px;
        }
        
        .copyright {
            color: #bdc3c7;
            font-size: 0.9rem;
            margin-top: 20px;
        }
        
        @media (max-width: 768px) {
            .header-content {
                flex-direction: column;
                gap: 15px;
            }
            
            nav a {
                margin: 0 10px;
            }
            
            h1 {
                font-size: 2rem;
            }
            
            .test-grid {
                grid-template-columns: 1fr;
            }
        }