.category-grid {display: grid;grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));gap: 20px;margin-top: 30px;}.category-card {display: block;padding: 25px;background: #f6f6f6;border-radius: 6px;text-align: center;text-decoration: none;color: #000;transition: all 0.3s ease;}.category-card:hover {background: #00a1fe;color: #fff;transform: translateY(-4px);}.category-card h3 {margin-bottom: 10px;font-size: 18px;}