/* Responsive Design */

@media (max-width: 1024px) {
    .container {
        padding: 0 15px;
    }
    
    .product-grid {
        grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
        gap: 20px;
    }
    
    .brands-grid {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    }
}

@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: flex;
    }
    
    .main-nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: var(--white);
        box-shadow: -4px 0 20px rgba(0,0,0,0.1);
        transition: right 0.3s ease;
        padding: 80px 20px 20px;
        z-index: 999;
    }
    
    .main-nav.active {
        right: 0;
    }
    
    .main-nav ul {
        flex-direction: column;
        gap: 10px;
    }
    
    .main-nav a {
        display: block;
        padding: 12px 20px;
    }
    
    .hero-content h2 {
        font-size: 2rem;
    }
    
    .hero-content p {
        font-size: 1rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .cart-item {
        grid-template-columns: 80px 1fr;
        gap: 15px;
    }
    
    .cart-item img {
        width: 80px;
        height: 80px;
    }
    
    .cart-item-quantity, .cart-item-price, .remove-item {
        grid-column: 2;
    }
    
    .payment-options {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .logo h1 {
        font-size: 1.5rem;
    }
    
    .hero-section {
        padding: 40px 0;
    }
    
    .hero-content h2 {
        font-size: 1.6rem;
    }
    
    .btn {
        padding: 10px 20px;
        font-size: 0.9rem;
    }
    
    .product-grid {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
        gap: 15px;
    }
    
    .product-card {
        padding: 15px;
    }
    
    .product-card img {
        height: 150px;
    }
    
    .brands-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }
    
    .login-container {
        margin: 30px 15px;
        padding: 30px 20px;
    }
    
    .admin-table {
        font-size: 0.9rem;
    }
    
    .admin-table th,
    .admin-table td {
        padding: 8px 10px;
    }
    
    .cart-item {
        padding: 15px;
    }
}

/* Mobile menu overlay */
.menu-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.5);
    z-index: 998;
}

.menu-overlay.active {
    display: block;
}

/* Print styles */
@media print {
    .main-header, .main-footer, .btn, .cart-item-quantity, .remove-item {
        display: none;
    }
    
    .cart-item {
        grid-template-columns: 1fr;
        box-shadow: none;
        border: 1px solid #ddd;
    }
}