/* ============================================
   VapeMarket - Responsive Design
   Mobile-First Approach
   ============================================ */

/* Large Desktop (1440px+) */
@media (min-width: 1440px) {
    .container {
        max-width: 1400px;
    }
    
    .hero-content {
        grid-template-columns: 1.2fr 0.8fr;
    }
    
    .products-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* Desktop (1024px - 1439px) */
@media (max-width: 1439px) {
    .container {
        max-width: 1200px;
    }
    
    .hero-product-grid {
        max-width: 280px;
    }
}

/* Laptop (768px - 1023px) */
@media (max-width: 1023px) {
    .container {
        padding: 0 var(--space-sm);
    }
    
    /* Header adjustments */
    .header-content {
        height: 70px;
    }
    
    .nav {
        display: none;
    }
    
    .search {
        max-width: 250px;
    }
    
    .user-actions .btn-seller {
        display: none;
    }
    
    /* Hero section */
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: var(--space-lg);
    }
    
    .hero-product-grid {
        margin: 0 auto;
        max-width: 320px;
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .quick-search {
        flex-direction: column;
        max-width: 400px;
        margin: 0 auto var(--space-xl);
    }
    
    /* Grid adjustments */
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .categories-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .benefits-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    /* Seller/Admin panels */
    .seller-dashboard,
    .admin-panel {
        grid-template-columns: 1fr;
        gap: var(--space-md);
    }
    
    .seller-sidebar,
    .admin-sidebar {
        order: -1;
    }
    
    .dashboard-stats {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Tablet (768px - 1023px) */
@media (max-width: 1023px) and (min-width: 768px) {
    /* Keep tablet styles from laptop */
}

/* Mobile (320px - 767px) */
@media (max-width: 767px) {
    .container {
        padding: 0 var(--space-sm);
    }
    
    /* Hide desktop navigation */
    .header {
        display: none;
    }
    
    /* Show mobile navigation */
    .mobile-nav {
        display: flex;
        justify-content: space-around;
        align-items: center;
    }
    
    .mobile-nav-item {
        flex: 1;
        text-align: center;
    }
    
    .mobile-nav-item span:first-child {
        font-size: 18px;
    }
    
    /* Main content padding for mobile nav */
    main {
        padding-bottom: 80px;
    }
    
    /* Hero section */
    .hero {
        padding: var(--space-lg) 0;
        margin-top: 70px; /* Account for mobile nav */
    }
    
    .hero-title {
        font-size: 28px;
        line-height: 1.2;
    }
    
    .hero-subtitle {
        font-size: var(--text-base);
    }
    
    .hero-stats {
        flex-direction: column;
        gap: var(--space-sm);
        text-align: center;
    }
    
    .quick-search {
        flex-direction: column;
        gap: var(--space-sm);
    }
    
    .quick-search-input,
    .quick-search .btn {
        width: 100%;
    }
    
    /* Product grids */
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-sm);
    }
    
    .product-card {
        border-radius: var(--radius-sm);
    }
    
    .product-info {
        padding: var(--space-sm);
    }
    
    .product-title {
        font-size: var(--text-sm);
        -webkit-line-clamp: 1;
    }
    
    .product-price {
        font-size: var(--text-base);
    }
    
    .btn-cart {
        padding: 8px 12px;
        font-size: var(--text-xs);
        min-height: 36px;
    }
    
    /* Categories */
    .categories-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-sm);
    }
    
    .category-card {
        padding: var(--space-md);
        border-radius: var(--radius-sm);
    }
    
    .category-icon {
        font-size: 24px;
    }
    
    .category-card h3 {
        font-size: var(--text-sm);
    }
    
    .category-card p {
        font-size: var(--text-xs);
    }
    
    /* Benefits */
    .benefits-grid {
        grid-template-columns: 1fr;
        gap: var(--space-md);
    }
    
    .benefit-card {
        padding: var(--space-md);
        border-radius: var(--radius-sm);
    }
    
    .benefit-icon {
        font-size: 36px;
    }
    
    .benefit-card h3 {
        font-size: var(--text-base);
    }
    
    .benefit-card p {
        font-size: var(--text-xs);
    }
    
    /* Footer */
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--space-md);
        text-align: center;
    }
    
    .footer-section h3 {
        font-size: var(--text-base);
    }
    
    .social-links {
        justify-content: center;
    }
    
    /* Section spacing */
    .categories,
    .featured,
    .benefits {
        padding: var(--space-lg) 0;
    }
    
    .section-title {
        font-size: var(--text-xl);
        margin-bottom: var(--space-lg);
    }
    
    /* Forms */
    .form-row {
        grid-template-columns: 1fr;
        gap: var(--space-sm);
    }
    
    .cart-item {
        flex-direction: column;
        align-items: stretch;
        text-align: center;
        gap: var(--space-sm);
    }
    
    .cart-item-image {
        width: 100%;
        height: 120px;
        align-self: center;
    }
    
    .cart-item-controls {
        justify-content: center;
    }
    
    .cart-item-price {
        font-size: var(--text-base);
    }
    
    /* Profile pages */
    .profile-page {
        padding: var(--space-md) 0;
    }
    
    .profile-sidebar {
        margin-bottom: var(--space-md);
    }
    
    .profile-content {
        padding: var(--space-md);
    }
    
    /* Dashboard stats */
    .dashboard-stats {
        grid-template-columns: 1fr;
    }
    
    .stat-card {
        padding: var(--space-md);
        text-align: center;
    }
    
    .stat-card .number {
        font-size: var(--text-xl);
    }
    
    /* Data tables */
    .table-header,
    .table-row {
        grid-template-columns: 1fr;
        gap: var(--space-xs);
        text-align: left;
    }
    
    .table-header {
        display: none;
    }
    
    .table-row {
        border: 1px solid var(--border-color);
        border-radius: var(--radius-sm);
        margin-bottom: var(--space-sm);
        padding: var(--space-sm);
    }
    
    .table-row::before {
        content: attr(data-label);
        font-weight: 600;
        color: var(--text-primary);
        display: block;
        margin-bottom: 4px;
    }
    
    /* Notifications */
    .notification {
        left: var(--space-sm);
        right: var(--space-sm);
        min-width: auto;
        top: var(--space-sm);
    }
    
    /* Modal adjustments */
    .modal-content {
        padding: var(--space-lg);
        margin: var(--space-sm);
    }
    
    .modal-actions {
        flex-direction: column;
    }
    
    /* Touch improvements */
    .btn,
    .icon-btn,
    .category-card,
    .product-card,
    .action-btn {
        min-height: 44px;
        touch-action: manipulation;
    }
    
    /* Improve tap targets */
    .nav-link,
    .footer-section a,
    .social-link {
        min-height: 44px;
        display: flex;
        align-items: center;
    }
}

/* Small Mobile (320px - 479px) */
@media (max-width: 479px) {
    .container {
        padding: 0 var(--space-xs);
    }
    
    /* Further reduce spacing */
    :root {
        --space-md: 16px;
        --space-lg: 24px;
        --space-xl: 48px;
        --space-xxl: 64px;
    }
    
    .hero-title {
        font-size: 24px;
    }
    
    .products-grid {
        grid-template-columns: 1fr;
        gap: var(--space-sm);
    }
    
    .categories-grid {
        grid-template-columns: 1fr;
    }
    
    .hero-product-grid {
        grid-template-columns: 1fr;
        max-width: 200px;
    }
    
    .hero-product-card:nth-child(2) {
        display: none;
    }
    
    /* Hide some content on very small screens */
    .hero-stats {
        display: none;
    }
    
    .section-header {
        flex-direction: column;
        gap: var(--space-xs);
        text-align: center;
    }
}

/* High DPI / Retina displays */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .product-image img,
    .cart-item-image img,
    .hero-product-card img {
        image-rendering: -webkit-optimize-contrast;
        image-rendering: crisp-edges;
    }
}

/* Dark mode preferences */
@media (prefers-color-scheme: dark) {
    /* Already designed for dark mode, but can add overrides here if needed */
}

/* Reduced motion preferences */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Print styles */
@media print {
    .header,
    .mobile-nav,
    .footer,
    .btn,
    .icon-btn {
        display: none !important;
    }
    
    body {
        background: white !important;
        color: black !important;
    }
    
    .product-card,
    .category-card,
    .benefit-card {
        border: 1px solid #ccc !important;
        break-inside: avoid;
    }
}

/* Landscape mobile orientation */
@media (max-width: 767px) and (orientation: landscape) {
    .hero {
        padding: var(--space-md) 0;
    }
    
    .hero-title {
        font-size: 24px;
    }
    
    .categories,
    .featured,
    .benefits {
        padding: var(--space-md) 0;
    }
}

/* Large mobile devices (480px - 767px) */
@media (min-width: 480px) and (max-width: 767px) {
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .hero-product-grid {
        grid-template-columns: 1fr 1fr;
        max-width: 240px;
    }
}