/*
Theme Name: RPC Design
Theme URI: https://rpcdesign.com
Author: RPC Design Team
Author URI: https://rpcdesign.com
Description: A premium Elementor-based WooCommerce theme for luxury bag stores. Features a clean black and white design, full WooCommerce integration, and responsive layout.
Version: 1.0.0
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: rpc-design
Domain Path: /languages
Tags: e-commerce, custom-menu, custom-logo, featured-images, threaded-comments, translation-ready, blog, grid-layout, one-column, two-columns, custom-colors

WC requires at least: 7.0
WC tested up to: 8.0
*/

/* ============================================
   TABLE OF CONTENTS
   ============================================
   1. CSS Variables & Reset
   2. Base Styles
   3. Header & Navigation
   4. Hero Section
   5. Product Grid
   6. Single Product
   7. Cart & Checkout
   8. Footer
   9. Responsive Design
   10. Utility Classes
   ============================================ */

/* ============================================
   1. CSS VARIABLES & RESET
   ============================================ */
:root {
    /* Colors - Black & White Theme */
    --color-primary: #000000;
    --color-secondary: #ffffff;
    --color-text: #1a1a1a;
    --color-text-light: #666666;
    --color-text-muted: #999999;
    --color-bg: #ffffff;
    --color-bg-alt: #f5f5f5;
    --color-bg-dark: #0a0a0a;
    --color-border: #e5e5e5;
    --color-border-dark: #333333;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-heading: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    
    /* Font Sizes */
    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --text-3xl: 1.875rem;
    --text-4xl: 2.25rem;
    --text-5xl: 3rem;
    --text-6xl: 3.75rem;
    
    /* Spacing */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    --space-24: 6rem;
    
    /* Layout */
    --container-max: 1400px;
    --container-narrow: 1200px;
    --header-height: 80px;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
}

/* Reset */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-primary);
    font-size: var(--text-base);
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--color-text-light);
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

ul, ol {
    list-style: none;
}

/* ============================================
   2. BASE STYLES
   ============================================ */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-6);
}

.container-narrow {
    max-width: var(--container-narrow);
}

.section {
    padding: var(--space-20) 0;
}

.section-sm {
    padding: var(--space-12) 0;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.2;
    color: var(--color-primary);
}

h1 { font-size: var(--text-5xl); }
h2 { font-size: var(--text-4xl); }
h3 { font-size: var(--text-3xl); }
h4 { font-size: var(--text-2xl); }
h5 { font-size: var(--text-xl); }
h6 { font-size: var(--text-lg); }

p {
    margin-bottom: var(--space-4);
}

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-4) var(--space-8);
    font-size: var(--text-sm);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    transition: all var(--transition-base);
    border: 1px solid transparent;
}

.btn-primary {
    background-color: var(--color-primary);
    color: var(--color-secondary);
    border-color: var(--color-primary);
}

.btn-primary:hover {
    background-color: transparent;
    color: var(--color-primary);
}

.btn-secondary {
    background-color: transparent;
    color: var(--color-primary);
    border-color: var(--color-primary);
}

.btn-secondary:hover {
    background-color: var(--color-primary);
    color: var(--color-secondary);
}

.btn-white {
    background-color: var(--color-secondary);
    color: var(--color-primary);
    border-color: var(--color-secondary);
}

.btn-white:hover {
    background-color: transparent;
    color: var(--color-secondary);
}

/* ============================================
   3. HEADER & NAVIGATION
   ============================================ */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: var(--header-height);
    background-color: var(--color-secondary);
    border-bottom: 1px solid var(--color-border);
    transition: all var(--transition-base);
}

.site-header.scrolled {
    box-shadow: var(--shadow-md);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.site-logo {
    font-size: var(--text-xl);
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.site-logo a {
    color: var(--color-primary);
}

/* Main Navigation */
.main-nav {
    display: flex;
    align-items: center;
    gap: var(--space-8);
}

.main-nav ul {
    display: flex;
    align-items: center;
    gap: var(--space-8);
}

.main-nav a {
    font-size: var(--text-sm);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text);
    position: relative;
}

.main-nav a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background-color: var(--color-primary);
    transition: width var(--transition-base);
}

.main-nav a:hover::after {
    width: 100%;
}

/* Header Actions */
.header-actions {
    display: flex;
    align-items: center;
    gap: var(--space-6);
}

.header-action {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    color: var(--color-primary);
    transition: color var(--transition-fast);
}

.header-action:hover {
    color: var(--color-text-light);
}

.header-action svg {
    width: 20px;
    height: 20px;
}

.cart-count {
    position: absolute;
    top: 0;
    right: 0;
    width: 18px;
    height: 18px;
    background-color: var(--color-primary);
    color: var(--color-secondary);
    font-size: 10px;
    font-weight: 600;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Mobile Menu Toggle */
.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    padding: var(--space-2);
}

.menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--color-primary);
    transition: all var(--transition-base);
}

/* ============================================
   4. HERO SECTION
   ============================================ */
.hero-section {
    position: relative;
    height: 100vh;
    min-height: 700px;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to right, rgba(0,0,0,0.6) 0%, rgba(0,0,0,0.2) 50%, transparent 100%);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 600px;
    color: var(--color-secondary);
}

.hero-subtitle {
    font-size: var(--text-sm);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    margin-bottom: var(--space-4);
    opacity: 0.8;
}

.hero-title {
    font-size: var(--text-6xl);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: var(--space-6);
    color: var(--color-secondary);
}

.hero-description {
    font-size: var(--text-lg);
    line-height: 1.7;
    margin-bottom: var(--space-8);
    opacity: 0.9;
}

.hero-buttons {
    display: flex;
    gap: var(--space-4);
}

/* ============================================
   5. PRODUCT GRID
   ============================================ */
.section-header {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    margin-bottom: var(--space-12);
}

.section-title {
    font-size: var(--text-3xl);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.section-description {
    max-width: 500px;
    color: var(--color-text-light);
    margin-top: var(--space-4);
}

.view-all {
    font-size: var(--text-sm);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
}

.view-all::after {
    content: '→';
    transition: transform var(--transition-base);
}

.view-all:hover::after {
    transform: translateX(4px);
}

/* Product Grid */
.products-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-6);
}

.product-card {
    position: relative;
    group: true;
}

.product-image {
    position: relative;
    aspect-ratio: 3/4;
    overflow: hidden;
    background-color: var(--color-bg-alt);
    margin-bottom: var(--space-4);
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.product-card:hover .product-image img {
    transform: scale(1.05);
}

.product-actions {
    position: absolute;
    bottom: var(--space-4);
    left: 50%;
    transform: translateX(-50%) translateY(20px);
    display: flex;
    gap: var(--space-2);
    opacity: 0;
    transition: all var(--transition-base);
}

.product-card:hover .product-actions {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

.product-action-btn {
    width: 44px;
    height: 44px;
    background-color: var(--color-secondary);
    color: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.product-action-btn:hover {
    background-color: var(--color-primary);
    color: var(--color-secondary);
}

.product-category {
    font-size: var(--text-xs);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-muted);
    margin-bottom: var(--space-1);
}

.product-title {
    font-size: var(--text-base);
    font-weight: 500;
    margin-bottom: var(--space-2);
}

.product-title a:hover {
    color: var(--color-text-light);
}

.product-price {
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--color-text);
}

.product-price .sale-price {
    color: var(--color-text-muted);
    text-decoration: line-through;
    margin-left: var(--space-2);
}

/* Badge */
.product-badge {
    position: absolute;
    top: var(--space-4);
    left: var(--space-4);
    padding: var(--space-1) var(--space-3);
    font-size: var(--text-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    background-color: var(--color-primary);
    color: var(--color-secondary);
}

/* ============================================
   6. SINGLE PRODUCT
   ============================================ */
.single-product {
    padding-top: calc(var(--header-height) + var(--space-12));
}

.product-gallery {
    position: sticky;
    top: calc(var(--header-height) + var(--space-6));
}

.product-main-image {
    aspect-ratio: 3/4;
    background-color: var(--color-bg-alt);
    margin-bottom: var(--space-4);
}

.product-main-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.product-thumbnails {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-2);
}

.product-thumbnail {
    aspect-ratio: 1;
    background-color: var(--color-bg-alt);
    cursor: pointer;
    border: 2px solid transparent;
    transition: border-color var(--transition-fast);
}

.product-thumbnail.active,
.product-thumbnail:hover {
    border-color: var(--color-primary);
}

.product-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Product Info */
.product-info {
    padding-left: var(--space-12);
}

.product-info .product-category {
    font-size: var(--text-sm);
    margin-bottom: var(--space-2);
}

.product-info .product-title {
    font-size: var(--text-3xl);
    font-weight: 600;
    margin-bottom: var(--space-4);
}

.product-info .product-price {
    font-size: var(--text-2xl);
    font-weight: 600;
    margin-bottom: var(--space-6);
}

.product-short-description {
    color: var(--color-text-light);
    margin-bottom: var(--space-8);
    line-height: 1.8;
}

/* Product Meta */
.product-meta {
    border-top: 1px solid var(--color-border);
    padding-top: var(--space-6);
    margin-top: var(--space-8);
}

.product-meta-item {
    display: flex;
    gap: var(--space-4);
    margin-bottom: var(--space-3);
    font-size: var(--text-sm);
}

.product-meta-label {
    font-weight: 500;
    min-width: 100px;
}

/* Add to Cart Form */
.add-to-cart-form {
    margin-bottom: var(--space-8);
}

.quantity-selector {
    display: flex;
    align-items: center;
    border: 1px solid var(--color-border);
    margin-bottom: var(--space-4);
    width: fit-content;
}

.quantity-btn {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-lg);
    transition: background-color var(--transition-fast);
}

.quantity-btn:hover {
    background-color: var(--color-bg-alt);
}

.quantity-input {
    width: 60px;
    height: 48px;
    text-align: center;
    border: none;
    border-left: 1px solid var(--color-border);
    border-right: 1px solid var(--color-border);
    font-size: var(--text-base);
    font-weight: 500;
}

.add-to-cart-btn {
    width: 100%;
    padding: var(--space-5) var(--space-8);
    background-color: var(--color-primary);
    color: var(--color-secondary);
    font-size: var(--text-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    transition: all var(--transition-base);
}

.add-to-cart-btn:hover {
    background-color: var(--color-text);
}

/* ============================================
   7. CART & CHECKOUT
   ============================================ */
.cart-section {
    padding-top: calc(var(--header-height) + var(--space-12));
}

.cart-header {
    margin-bottom: var(--space-8);
}

.cart-header h1 {
    font-size: var(--text-3xl);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Cart Table */
.cart-table {
    width: 100%;
    border-collapse: collapse;
}

.cart-table th {
    text-align: left;
    padding: var(--space-4) 0;
    font-size: var(--text-sm);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-bottom: 1px solid var(--color-border);
    color: var(--color-text-muted);
}

.cart-table td {
    padding: var(--space-6) 0;
    border-bottom: 1px solid var(--color-border);
    vertical-align: middle;
}

.cart-product {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.cart-product-image {
    width: 100px;
    aspect-ratio: 3/4;
    background-color: var(--color-bg-alt);
}

.cart-product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.cart-product-info h4 {
    font-size: var(--text-base);
    font-weight: 500;
    margin-bottom: var(--space-1);
}

.cart-product-info .variation {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
}

.cart-product-info .remove-item {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    text-decoration: underline;
    margin-top: var(--space-2);
    display: inline-block;
}

.cart-product-info .remove-item:hover {
    color: var(--color-primary);
}

/* Cart Actions */
.cart-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-6) 0;
}

.coupon-form {
    display: flex;
    gap: var(--space-2);
}

.coupon-input {
    padding: var(--space-3) var(--space-4);
    border: 1px solid var(--color-border);
    font-size: var(--text-sm);
    min-width: 200px;
}

.coupon-input:focus {
    outline: none;
    border-color: var(--color-primary);
}

.update-cart-btn {
    padding: var(--space-3) var(--space-6);
    border: 1px solid var(--color-primary);
    font-size: var(--text-sm);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    transition: all var(--transition-base);
}

.update-cart-btn:hover {
    background-color: var(--color-primary);
    color: var(--color-secondary);
}

/* Cart Totals */
.cart-totals {
    background-color: var(--color-bg-alt);
    padding: var(--space-8);
}

.cart-totals h3 {
    font-size: var(--text-xl);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-6);
}

.cart-totals-table {
    width: 100%;
    margin-bottom: var(--space-6);
}

.cart-totals-table tr {
    border-bottom: 1px solid var(--color-border);
}

.cart-totals-table td {
    padding: var(--space-4) 0;
}

.cart-totals-table .label {
    font-weight: 500;
}

.cart-totals-table .value {
    text-align: right;
}

.cart-totals-table .total {
    font-size: var(--text-lg);
    font-weight: 600;
}

.checkout-btn {
    width: 100%;
    padding: var(--space-5) var(--space-8);
    background-color: var(--color-primary);
    color: var(--color-secondary);
    font-size: var(--text-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    transition: background-color var(--transition-base);
}

.checkout-btn:hover {
    background-color: var(--color-text);
}

/* Checkout */
.checkout-section {
    padding-top: calc(var(--header-height) + var(--space-12));
}

.checkout-form h3 {
    font-size: var(--text-xl);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-6);
    padding-bottom: var(--space-4);
    border-bottom: 1px solid var(--color-border);
}

.form-row {
    margin-bottom: var(--space-4);
}

.form-row label {
    display: block;
    font-size: var(--text-sm);
    font-weight: 500;
    margin-bottom: var(--space-2);
}

.form-row input,
.form-row select,
.form-row textarea {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    border: 1px solid var(--color-border);
    font-size: var(--text-base);
    transition: border-color var(--transition-fast);
}

.form-row input:focus,
.form-row select:focus,
.form-row textarea:focus {
    outline: none;
    border-color: var(--color-primary);
}

.form-row-half {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4);
}

/* ============================================
   8. FOOTER
   ============================================ */
.site-footer {
    background-color: var(--color-bg-dark);
    color: var(--color-secondary);
    padding: var(--space-20) 0 var(--space-8);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--space-12);
    margin-bottom: var(--space-16);
}

.footer-brand .site-logo {
    color: var(--color-secondary);
    margin-bottom: var(--space-4);
}

.footer-brand p {
    color: var(--color-text-muted);
    font-size: var(--text-sm);
    line-height: 1.8;
    max-width: 300px;
}

.footer-column h4 {
    font-size: var(--text-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--space-6);
    color: var(--color-secondary);
}

.footer-column ul li {
    margin-bottom: var(--space-3);
}

.footer-column ul li a {
    color: var(--color-text-muted);
    font-size: var(--text-sm);
    transition: color var(--transition-fast);
}

.footer-column ul li a:hover {
    color: var(--color-secondary);
}

/* Newsletter */
.newsletter-form {
    display: flex;
    gap: var(--space-2);
    margin-top: var(--space-4);
}

.newsletter-input {
    flex: 1;
    padding: var(--space-3) var(--space-4);
    background-color: transparent;
    border: 1px solid var(--color-border-dark);
    color: var(--color-secondary);
    font-size: var(--text-sm);
}

.newsletter-input::placeholder {
    color: var(--color-text-muted);
}

.newsletter-input:focus {
    outline: none;
    border-color: var(--color-secondary);
}

.newsletter-btn {
    padding: var(--space-3) var(--space-6);
    background-color: var(--color-secondary);
    color: var(--color-primary);
    font-size: var(--text-sm);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    transition: all var(--transition-base);
}

.newsletter-btn:hover {
    background-color: var(--color-primary);
    color: var(--color-secondary);
    border: 1px solid var(--color-secondary);
}

/* Footer Bottom */
.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--space-8);
    border-top: 1px solid var(--color-border-dark);
}

.footer-copyright {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
}

.footer-social {
    display: flex;
    gap: var(--space-4);
}

.footer-social a {
    color: var(--color-text-muted);
    transition: color var(--transition-fast);
}

.footer-social a:hover {
    color: var(--color-secondary);
}

/* ============================================
   9. RESPONSIVE DESIGN
   ============================================ */
@media (max-width: 1200px) {
    .products-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 992px) {
    :root {
        --header-height: 70px;
    }
    
    .hero-title {
        font-size: var(--text-5xl);
    }
    
    .product-info {
        padding-left: 0;
        margin-top: var(--space-8);
    }
    
    .single-product .container {
        display: flex;
        flex-direction: column;
    }
    
    .product-gallery {
        position: relative;
        top: 0;
    }
}

@media (max-width: 768px) {
    .menu-toggle {
        display: flex;
    }
    
    .main-nav {
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        bottom: 0;
        background-color: var(--color-secondary);
        flex-direction: column;
        justify-content: flex-start;
        padding: var(--space-8);
        transform: translateX(-100%);
        transition: transform var(--transition-base);
    }
    
    .main-nav.active {
        transform: translateX(0);
    }
    
    .main-nav ul {
        flex-direction: column;
        gap: var(--space-6);
    }
    
    .main-nav a {
        font-size: var(--text-xl);
    }
    
    .hero-title {
        font-size: var(--text-4xl);
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-4);
    }
    
    .section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-4);
    }
    
    .cart-table thead {
        display: none;
    }
    
    .cart-table tr {
        display: block;
        margin-bottom: var(--space-6);
        border: 1px solid var(--color-border);
        padding: var(--space-4);
    }
    
    .cart-table td {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: var(--space-3) 0;
        border-bottom: 1px solid var(--color-border);
    }
    
    .cart-table td::before {
        content: attr(data-label);
        font-weight: 500;
        text-transform: uppercase;
        font-size: var(--text-sm);
    }
    
    .cart-product {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .cart-actions {
        flex-direction: column;
        gap: var(--space-4);
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: var(--space-8);
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: var(--space-4);
        text-align: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--space-4);
    }
    
    .hero-title {
        font-size: var(--text-3xl);
    }
    
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .section {
        padding: var(--space-12) 0;
    }
}

/* ============================================
   10. UTILITY CLASSES
   ============================================ */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.hidden {
    display: none !important;
}

.visible {
    display: block !important;
}

.flex {
    display: flex;
}

.flex-col {
    flex-direction: column;
}

.items-center {
    align-items: center;
}

.justify-center {
    justify-content: center;
}

.justify-between {
    justify-content: space-between;
}

.gap-4 {
    gap: var(--space-4);
}

.gap-6 {
    gap: var(--space-6);
}

.mt-4 {
    margin-top: var(--space-4);
}

.mt-8 {
    margin-top: var(--space-8);
}

.mb-4 {
    margin-bottom: var(--space-4);
}

.mb-8 {
    margin-bottom: var(--space-8);
}

/* Loading State */
.loading {
    position: relative;
    pointer-events: none;
}

.loading::after {
    content: '';
    position: absolute;
    inset: 0;
    background-color: rgba(255, 255, 255, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fade-in {
    animation: fadeIn 0.6s ease forwards;
}

/* WooCommerce Specific Styles */
.woocommerce-message,
.woocommerce-info,
.woocommerce-error {
    padding: var(--space-4) var(--space-6);
    margin-bottom: var(--space-6);
    border-left: 4px solid;
}

.woocommerce-message {
    background-color: #f0fdf4;
    border-color: #22c55e;
    color: #166534;
}

.woocommerce-info {
    background-color: #eff6ff;
    border-color: #3b82f6;
    color: #1e40af;
}

.woocommerce-error {
    background-color: #fef2f2;
    border-color: #ef4444;
    color: #991b1b;
}

/* Star Rating */
.star-rating {
    color: #fbbf24;
}

/* Breadcrumbs */
.woocommerce-breadcrumb {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    margin-bottom: var(--space-6);
}

.woocommerce-breadcrumb a {
    color: var(--color-text);
}

.woocommerce-breadcrumb a:hover {
    color: var(--color-primary);
}

/* Tabs */
.wc-tabs {
    display: flex;
    gap: var(--space-8);
    border-bottom: 1px solid var(--color-border);
    margin-bottom: var(--space-6);
}

.wc-tabs li a {
    display: block;
    padding: var(--space-4) 0;
    font-size: var(--text-sm);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-muted);
    border-bottom: 2px solid transparent;
    margin-bottom: -1px;
}

.wc-tabs li.active a {
    color: var(--color-primary);
    border-bottom-color: var(--color-primary);
}

/* Related Products */
.related-products {
    margin-top: var(--space-16);
    padding-top: var(--space-16);
    border-top: 1px solid var(--color-border);
}

.related-products h2 {
    font-size: var(--text-2xl);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-8);
}