/**
 * Estilos principales - Refaccionaria Diesel Chihuahua
 * Colores: Azul industrial, gris metálico, naranja para acentos
 */

/* ========================================
   VARIABLES Y RESET
   ======================================== */
:root {
    /* Colores principales */
    --color-primary: #1e3a8a; /* Azul industrial */
    --color-primary-dark: #1e40af;
    --color-primary-light: #3b82f6;
    --color-secondary: #6b7280; /* Gris metálico */
    --color-accent: #ea580c; /* Naranja */
    --color-accent-hover: #c2410c;
    
    /* Colores de texto */
    --color-text: #1f2937;
    --color-text-light: #6b7280;
    --color-text-dark: #111827;
    
    /* Colores de fondo */
    --color-bg: #ffffff;
    --color-bg-light: #f9fafb;
    --color-bg-dark: #111827;
    
    /* Colores de estado */
    --color-success: #059669;
    --color-error: #dc2626;
    --color-warning: #d97706;
    --color-info: #0284c7;
    
    /* Espaciado */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    
    /* Tipografía */
    --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-size-base: 16px;
    
    /* Bordes */
    --border-radius: 0.5rem;
    --border-radius-sm: 0.25rem;
    --border-radius-lg: 1rem;
    
    /* Sombras */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    
    /* Transiciones */
    --transition: all 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: var(--font-size-base);
    scroll-behavior: smooth;
}

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

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

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

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

/* ========================================
   UTILIDADES
   ======================================== */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-text-dark);
    margin-bottom: var(--spacing-sm);
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--color-text-light);
}

.section-footer {
    text-align: center;
    margin-top: var(--spacing-xl);
}

/* ========================================
   BOTONES
   ======================================== */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    font-weight: 600;
    text-align: center;
    border: 2px solid transparent;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    line-height: 1;
}

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

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

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

.btn-secondary:hover {
    background-color: #4b5563;
    color: white;
}

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

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

.btn-whatsapp {
    background-color: #25d366;
    color: white;
}

.btn-whatsapp:hover {
    background-color: #128c7e;
    color: white;
}

.btn-phone {
    background-color: var(--color-accent);
    color: white;
}

.btn-phone:hover {
    background-color: var(--color-accent-hover);
    color: white;
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

.btn-block {
    display: block;
    width: 100%;
}

.btn-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    padding: 0;
    border-radius: 50%;
    position: relative;
}

/* ========================================
   HEADER
   ======================================== */
.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background-color: white;
    box-shadow: var(--shadow-md);
}

.top-bar {
    background-color: var(--color-bg-dark);
    color: white;
    padding: var(--spacing-xs) 0;
    font-size: 0.875rem;
}

.top-bar-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.contact-info {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.contact-item {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: white;
}

.contact-item:hover {
    color: var(--color-accent);
}

.social-links {
    display: flex;
    gap: var(--spacing-sm);
}

.social-links a {
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    color: white;
}

.social-links a:hover {
    background-color: var(--color-accent);
    color: white;
}

.main-header {
    padding: var(--spacing-md) 0;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-md);
}

.logo a {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-text-dark);
}

.logo img {
    height: 50px;
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--color-text);
    cursor: pointer;
}

.main-nav {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-md);
    margin: 0;
}

.nav-menu li {
    position: relative;
}

.nav-menu a {
    display: block;
    padding: 0.5rem 1rem;
    color: var(--color-text);
    font-weight: 600;
}

.nav-menu a:hover {
    color: var(--color-primary);
}

.has-submenu:hover .submenu {
    display: block;
}

.submenu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 220px;
    background-color: white;
    box-shadow: var(--shadow-lg);
    border-radius: var(--border-radius);
    padding: var(--spacing-sm) 0;
    list-style: none;
}

.submenu li {
    margin: 0;
}

.submenu a {
    padding: 0.5rem 1rem;
}

.submenu a:hover {
    background-color: var(--color-bg-light);
}

.header-actions {
    display: flex;
    gap: var(--spacing-sm);
}

.btn-cart {
    position: relative;
}

.cart-badge {
    position: absolute;
    top: -5px;
    right: -5px;
    background-color: var(--color-accent);
    color: white;
    font-size: 0.75rem;
    font-weight: 700;
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
}

/* ========================================
   HERO SECTION
   ======================================== */
.hero-section {
    position: relative;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: white;
    padding: 6rem 0;
    text-align: center;
    overflow: hidden;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml,<svg width="60" height="60" xmlns="http://www.w3.org/2000/svg"><rect width="60" height="60" fill="none"/><path d="M30 0L60 30L30 60L0 30Z" fill="rgba(255,255,255,0.05)"/></svg>');
    opacity: 0.1;
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-xl);
    opacity: 0.9;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

/* ========================================
   FEATURES
   ======================================== */
.features-section {
    padding: var(--spacing-xl) 0;
    background-color: var(--color-bg-light);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
}

.feature-card {
    background-color: white;
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-md);
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 2rem;
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-dark);
}

/* ========================================
   CATEGORIES
   ======================================== */
.categories-section {
    padding: var(--spacing-xl) 0;
}

.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

.category-card {
    background-color: white;
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    border: 2px solid transparent;
}

.category-card:hover {
    border-color: var(--color-primary);
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.category-icon {
    width: 60px;
    height: 60px;
    background-color: var(--color-primary);
    color: white;
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
}

.category-card h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-dark);
}

.category-card p {
    color: var(--color-text-light);
    margin-bottom: var(--spacing-md);
    font-size: 0.9rem;
}

.category-link {
    color: var(--color-primary);
    font-weight: 600;
}

.category-card:hover .category-link {
    color: var(--color-accent);
}

/* ========================================
   PRODUCTS
   ======================================== */
.products-section {
    padding: var(--spacing-xl) 0;
    background-color: var(--color-bg-light);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

.product-card {
    background-color: white;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.product-image {
    position: relative;
    width: 100%;
    height: 220px;
    overflow: hidden;
    background-color: var(--color-bg-light);
}

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

.product-badge {
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    background-color: var(--color-accent);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: var(--border-radius);
    font-size: 0.875rem;
    font-weight: 600;
}

.product-info {
    padding: var(--spacing-md);
    flex: 1;
    display: flex;
    flex-direction: column;
}

.product-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-dark);
    line-height: 1.4;
}

.product-category {
    font-size: 0.875rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-sm);
}

.product-meta {
    font-size: 0.875rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-md);
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.product-brand {
    font-weight: 600;
    color: var(--color-primary);
}

.product-part-number {
    color: var(--color-text-light);
}

.product-actions {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: auto;
}

.product-actions .btn {
    flex: 1;
    font-size: 0.875rem;
    padding: 0.625rem 1rem;
}

/* ========================================
   CTA SECTION
   ======================================== */
.cta-section {
    padding: var(--spacing-xl) 0;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: white;
    text-align: center;
}

.cta-content h2 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
}

.cta-content p {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-xl);
    opacity: 0.9;
}

.cta-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

/* ========================================
   BRANDS SECTION
   ======================================== */
.brands-section {
    padding: var(--spacing-xl) 0;
    text-align: center;
}

.brands-text p {
    font-size: 1.125rem;
    color: var(--color-text-light);
    line-height: 2;
}

/* ========================================
   FOOTER
   ======================================== */
.site-footer {
    background-color: var(--color-bg-dark);
    color: white;
    padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-column h3 {
    margin-bottom: var(--spacing-md);
    font-size: 1.25rem;
}

.footer-column p {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.8;
}

.footer-social {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.footer-social a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    color: white;
}

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

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: var(--spacing-sm);
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
}

.footer-links a:hover {
    color: white;
}

.footer-contact {
    list-style: none;
}

.footer-contact li {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    align-items: flex-start;
}

.footer-contact i {
    color: var(--color-accent);
    margin-top: 0.25rem;
}

.footer-contact a {
    color: rgba(255, 255, 255, 0.7);
}

.footer-contact a:hover {
    color: white;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-md);
    text-align: center;
    color: rgba(255, 255, 255, 0.5);
}

.footer-credits {
    font-size: 0.875rem;
    margin-top: var(--spacing-sm);
}

/* ========================================
   WHATSAPP FLOAT BUTTON
   ======================================== */
.whatsapp-float {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background-color: #25d366;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    box-shadow: var(--shadow-xl);
    z-index: 999;
    transition: var(--transition);
}

.whatsapp-float:hover {
    background-color: #128c7e;
    transform: scale(1.1);
    color: white;
}

/* ========================================
   PAGE HEADER
   ======================================== */
.page-header {
    padding: var(--spacing-xl) 0 var(--spacing-lg);
    text-align: center;
}

.page-header h1 {
    font-size: 2.5rem;
    color: var(--color-text-dark);
    margin-bottom: var(--spacing-sm);
}

.breadcrumb {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    font-size: 0.875rem;
    color: var(--color-text-light);
    margin-top: var(--spacing-md);
}

/* ========================================
   FORMS
   ======================================== */
.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
    color: var(--color-text-dark);
}

.required {
    color: var(--color-error);
}

.form-control, .form-select {
    width: 100%;
    padding: 0.75rem;
    font-size: 1rem;
    border: 2px solid #e5e7eb;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

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

textarea.form-control {
    resize: vertical;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
}

.form-section {
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg);
    background-color: var(--color-bg-light);
    border-radius: var(--border-radius-lg);
}

.form-section h3 {
    margin-bottom: var(--spacing-md);
    color: var(--color-text-dark);
    border-bottom: 2px solid var(--color-primary);
    padding-bottom: var(--spacing-sm);
}

.form-actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    margin-top: var(--spacing-xl);
}

/* ========================================
   ALERTS
   ======================================== */
.alert {
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.alert-success {
    background-color: #d1fae5;
    color: var(--color-success);
    border: 1px solid var(--color-success);
}

.alert-error {
    background-color: #fee2e2;
    color: var(--color-error);
    border: 1px solid var(--color-error);
}

/* ========================================
   CATALOG PAGE
   ======================================== */
.catalog-layout {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: var(--spacing-xl);
    margin-top: var(--spacing-lg);
}

.catalog-sidebar {
    position: sticky;
    top: 100px;
    height: fit-content;
}

.sidebar-section {
    background-color: white;
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    margin-bottom: var(--spacing-md);
}

.sidebar-section h3 {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-md);
    color: var(--color-text-dark);
}

.filter-list {
    list-style: none;
}

.filter-list li {
    margin-bottom: var(--spacing-xs);
}

.filter-list a {
    display: block;
    padding: 0.5rem;
    border-radius: var(--border-radius);
    color: var(--color-text);
}

.filter-list a:hover,
.filter-list a.active {
    background-color: var(--color-bg-light);
    color: var(--color-primary);
    font-weight: 600;
}

.catalog-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md);
    background-color: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
}

.results-count {
    font-weight: 600;
    color: var(--color-text);
}

.toolbar-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.no-results {
    text-align: center;
    padding: var(--spacing-xl);
    background-color: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
}

.no-results i {
    color: var(--color-text-light);
    margin-bottom: var(--spacing-md);
}

.no-results h3 {
    margin-bottom: var(--spacing-sm);
}

/* ========================================
   CART PAGE
   ======================================== */
.cart-layout {
    display: grid;
    grid-template-columns: 1fr 400px;
    gap: var(--spacing-xl);
    margin-top: var(--spacing-lg);
}

.cart-items {
    background-color: white;
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
}

.cart-item {
    display: grid;
    grid-template-columns: 100px 1fr auto auto;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    border-bottom: 1px solid #e5e7eb;
}

.cart-item:last-child {
    border-bottom: none;
}

.cart-item-image {
    width: 100px;
    height: 100px;
    background-color: var(--color-bg-light);
    border-radius: var(--border-radius);
    overflow: hidden;
}

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

.cart-item-info h3 {
    font-size: 1rem;
    margin-bottom: var(--spacing-xs);
}

.cart-item-meta {
    font-size: 0.875rem;
    color: var(--color-text-light);
}

.cart-item-quantity label {
    display: block;
    font-size: 0.875rem;
    margin-bottom: var(--spacing-xs);
}

.quantity-input {
    width: 80px;
    padding: 0.5rem;
    border: 2px solid #e5e7eb;
    border-radius: var(--border-radius);
}

.btn-remove {
    background: none;
    border: none;
    color: var(--color-error);
    font-size: 1.25rem;
    cursor: pointer;
    padding: 0.5rem;
}

.btn-remove:hover {
    color: #b91c1c;
}

.cart-footer {
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 1px solid #e5e7eb;
}

.cart-summary {
    position: sticky;
    top: 100px;
    height: fit-content;
}

.summary-card,
.info-card {
    background-color: white;
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    margin-bottom: var(--spacing-md);
}

.summary-card h3 {
    margin-bottom: var(--spacing-md);
    color: var(--color-text-dark);
}

.summary-item {
    display: flex;
    justify-content: space-between;
    margin-bottom: var(--spacing-sm);
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid #e5e7eb;
}

.summary-actions {
    margin-top: var(--spacing-lg);
}

.summary-actions .btn {
    width: 100%;
    margin-bottom: var(--spacing-sm);
}

.info-card h4 {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-sm);
    color: var(--color-primary);
}

.empty-cart {
    text-align: center;
    padding: var(--spacing-xl) 0;
}

.empty-cart i {
    color: var(--color-text-light);
    margin-bottom: var(--spacing-md);
}

/* ========================================
   RESPONSIVE DESIGN
   ======================================== */
@media (max-width: 1024px) {
    .catalog-layout {
        grid-template-columns: 1fr;
    }
    
    .catalog-sidebar {
        position: static;
    }
    
    .cart-layout {
        grid-template-columns: 1fr;
    }
    
    .cart-summary {
        position: static;
    }
}

@media (max-width: 768px) {
    .top-bar {
        font-size: 0.75rem;
    }
    
    .contact-info {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    .main-nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background-color: white;
        box-shadow: var(--shadow-xl);
        padding: var(--spacing-lg);
        transition: var(--transition);
        flex-direction: column;
        align-items: flex-start;
        overflow-y: auto;
    }
    
    .main-nav.active {
        right: 0;
    }
    
    .nav-menu {
        flex-direction: column;
        width: 100%;
    }
    
    .submenu {
        position: static;
        display: none;
        box-shadow: none;
        padding-left: var(--spacing-md);
    }
    
    .has-submenu.active .submenu {
        display: block;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1.125rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .products-grid,
    .categories-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    }
    
    .cart-item {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.5rem;
    }
    
    .products-grid,
    .categories-grid {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
}