/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #fff;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* Header Styles */
.header {
    background: #fff;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid #e5e5e5;
}

.nav-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 4rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    color: inherit;
}

.logo-icon {
    width: 2rem;
    height: 2rem;
    background: #000;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: bold;
    font-size: 0.875rem;
}

.logo-text {
    font-size: 1.25rem;
    font-weight: bold;
    color: #111;
}

.nav-desktop {
    display: flex;
    gap: 2rem;
}

.nav-link {
    text-decoration: none;
    color: #666;
    font-weight: 500;
    transition: color 0.2s;
}

.nav-link:hover,
.nav-link.active {
    color: #000;
}

.nav-icons {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.icon-btn {
    background: none;
    border: none;
    padding: 0.5rem;
    cursor: pointer;
    border-radius: 0.375rem;
    transition: background-color 0.2s;
    position: relative;
}

.icon-btn:hover {
    background-color: #f5f5f5;
}

.cart-count {
    position: absolute;
    top: -0.25rem;
    right: -0.25rem;
    background: #000;
    color: white;
    border-radius: 50%;
    width: 1.25rem;
    height: 1.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: bold;
}

.mobile-menu-btn {
    display: none;
}

.nav-mobile {
    display: none;
    flex-direction: column;
    gap: 0.5rem;
    padding: 1rem 0;
    border-top: 1px solid #e5e5e5;
    background: white;
}

.nav-mobile .nav-link {
    padding: 0.5rem 0.75rem;
    border-radius: 0.375rem;
}

.nav-mobile .nav-link:hover {
    background-color: #f5f5f5;
}

/* Page Management */
.page {
    display: none;
}

.page.active {
    display: block;
}

/* Hero Section */
.hero {
    height: 70vh;
    background: linear-gradient(rgba(0,0,0,0.4), rgba(0,0,0,0.4)), 
                url('https://images.unsplash.com/photo-1441986300917-64674bd600d8?w=1200&h=800&fit=crop');
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    color: white;
}

.hero-content {
    max-width: 600px;
    padding: 0 1rem;
}

.hero-title {
    font-size: 3rem;
    font-weight: bold;
    margin-bottom: 1.5rem;
    line-height: 1.1;
}

.hero-highlight {
    color: #fbbf24;
    display: block;
}

.hero-description {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    color: #e5e5e5;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

/* Button Styles */
.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 0.375rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    font-size: 1rem;
}

.btn-primary {
    background: #000;
    color: white;
}

.btn-primary:hover {
    background: #333;
}

.btn-secondary {
    background: transparent;
    color: white;
    border: 2px solid white;
}

.btn-secondary:hover {
    background: white;
    color: #000;
}

.btn-outline {
    background: transparent;
    color: #333;
    border: 1px solid #d1d5db;
}

.btn-outline:hover {
    background: #f9fafb;
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.125rem;
    width: 100%;
}

/* Features Section */
.features {
    padding: 4rem 0;
    background: #f9fafb;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.feature {
    text-align: center;
}

.feature-icon {
    width: 4rem;
    height: 4rem;
    background: #000;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    color: white;
    font-size: 2rem;
}

.feature h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.feature p {
    color: #666;
}

/* Categories Section */
.categories {
    padding: 4rem 0;
}

.section-title {
    font-size: 2rem;
    font-weight: bold;
    text-align: center;
    margin-bottom: 3rem;
}

.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.category-card {
    position: relative;
    height: 16rem;
    border-radius: 0.5rem;
    overflow: hidden;
    cursor: pointer;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    transition: transform 0.3s, box-shadow 0.3s;
}

.category-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}

.category-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s;
}

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

.category-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
}

.category-overlay h3 {
    font-size: 1.5rem;
    font-weight: bold;
}

/* Featured Products Section */
.featured-products {
    padding: 4rem 0;
    background: #f9fafb;
}

.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-description {
    color: #666;
    margin-top: 1rem;
}

.section-footer {
    text-align: center;
    margin-top: 3rem;
}

/* Products Grid */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 2rem;
}

.product-card {
    background: white;
    border-radius: 0.5rem;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    overflow: hidden;
    transition: transform 0.3s, box-shadow 0.3s;
    cursor: pointer;
}

.product-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}

.product-image {
    width: 100%;
    height: 16rem;
    object-fit: cover;
    transition: transform 0.3s;
}

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

.product-details {
    padding: 1rem;
}

.product-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    transition: color 0.2s;
}

.product-card:hover .product-title {
    color: #2563eb;
}

.product-rating {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

.stars {
    display: flex;
    gap: 0.125rem;
}

.star {
    color: #fbbf24;
}

.star.empty {
    color: #d1d5db;
}

.rating-text {
    font-size: 0.875rem;
    color: #666;
}

.product-price-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.5rem;
}

.product-price {
    font-size: 1.25rem;
    font-weight: bold;
    color: #111;
}

.product-original-price {
    font-size: 0.875rem;
    color: #666;
    text-decoration: line-through;
    margin-left: 0.5rem;
}

.product-meta {
    font-size: 0.875rem;
    color: #666;
}

/* Newsletter Section */
.newsletter {
    padding: 4rem 0;
    background: #000;
    color: white;
    text-align: center;
}

.newsletter h2 {
    font-size: 2rem;
    font-weight: bold;
    margin-bottom: 1rem;
}

.newsletter p {
    color: #ccc;
    margin-bottom: 2rem;
}

.newsletter-form {
    display: flex;
    max-width: 400px;
    margin: 0 auto;
    gap: 1rem;
}

.newsletter-input {
    flex: 1;
    padding: 0.75rem;
    border: none;
    border-radius: 0.375rem;
    font-size: 1rem;
}

/* Products Page */
.page-header {
    margin-bottom: 2rem;
}

.page-title {
    font-size: 2rem;
    font-weight: bold;
    margin-bottom: 1rem;
}

.controls {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.search-bar {
    position: relative;
    max-width: 400px;
}

.search-bar i {
    position: absolute;
    left: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    color: #666;
}

.search-bar input {
    width: 100%;
    padding: 0.75rem 0.75rem 0.75rem 2.5rem;
    border: 1px solid #d1d5db;
    border-radius: 0.375rem;
    font-size: 1rem;
}

.search-bar input:focus {
    outline: none;
    border-color: #000;
    box-shadow: 0 0 0 2px rgba(0,0,0,0.1);
}

.control-buttons {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.sort-select {
    padding: 0.5rem 1rem;
    border: 1px solid #d1d5db;
    border-radius: 0.375rem;
    background: white;
    cursor: pointer;
}

.view-toggle {
    display: flex;
    border: 1px solid #d1d5db;
    border-radius: 0.375rem;
    overflow: hidden;
}

.view-btn {
    padding: 0.5rem;
    border: none;
    background: white;
    cursor: pointer;
    transition: background-color 0.2s;
}

.view-btn.active {
    background: #000;
    color: white;
}

.view-btn:hover:not(.active) {
    background: #f5f5f5;
}

.products-layout {
    display: grid;
    grid-template-columns: 250px 1fr;
    gap: 2rem;
}

/* Filters Sidebar */
.filters-sidebar {
    background: white;
    padding: 1.5rem;
    border-radius: 0.5rem;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    height: fit-content;
}

.filter-group {
    margin-bottom: 2rem;
}

.filter-group h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.filter-options {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.filter-option {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
}

.filter-option input {
    margin: 0;
}

.price-inputs {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.price-inputs input {
    width: 5rem;
    padding: 0.25rem 0.5rem;
    border: 1px solid #d1d5db;
    border-radius: 0.25rem;
}

.price-slider {
    width: 100%;
}

.products-content {
    min-height: 400px;
}

.products-count {
    margin-bottom: 1rem;
    font-size: 0.875rem;
    color: #666;
}

/* List View */
.products-grid.list-view {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.products-grid.list-view .product-card {
    display: flex;
    height: 150px;
}

.products-grid.list-view .product-image {
    width: 150px;
    height: 100%;
    flex-shrink: 0;
}

.products-grid.list-view .product-details {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

/* Product Detail Page */
.breadcrumb {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 2rem;
    font-size: 0.875rem;
    color: #666;
}

.breadcrumb a {
    color: #666;
    text-decoration: none;
}

.breadcrumb a:hover {
    color: #000;
}

.product-detail-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    margin-bottom: 4rem;
}

.product-images {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.main-image {
    width: 100%;
    height: 500px;
    border-radius: 0.5rem;
    overflow: hidden;
}

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

.thumbnail-images {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
}

.thumbnail {
    width: 100%;
    height: 80px;
    border-radius: 0.375rem;
    overflow: hidden;
    cursor: pointer;
    border: 2px solid transparent;
    transition: border-color 0.2s;
}

.thumbnail.active {
    border-color: #000;
}

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

.product-info {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.product-info h1 {
    font-size: 2rem;
    font-weight: bold;
    margin-bottom: 0.5rem;
}

.product-info .product-rating {
    margin-bottom: 1rem;
}

.product-info .product-price {
    font-size: 2rem;
    font-weight: bold;
}

.discount {
    background: #fee2e2;
    color: #dc2626;
    padding: 0.25rem 0.5rem;
    border-radius: 0.25rem;
    font-size: 0.875rem;
    font-weight: 600;
    margin-left: 1rem;
}

.product-description {
    color: #666;
    line-height: 1.6;
}

.product-features h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
}

.product-features ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.product-features li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: #666;
}

.product-features li::before {
    content: '';
    width: 0.5rem;
    height: 0.5rem;
    background: #000;
    border-radius: 50%;
    flex-shrink: 0;
}

.product-option h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
}

.color-options {
    display: flex;
    gap: 0.75rem;
}

.color-option {
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 50%;
    border: 2px solid #d1d5db;
    cursor: pointer;
    transition: border-color 0.2s;
}

.color-option.active {
    border-color: #000;
}

.size-options {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 0.75rem;
}

.size-option {
    padding: 0.5rem 1rem;
    border: 1px solid #d1d5db;
    border-radius: 0.375rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s;
    background: white;
}

.size-option.active {
    border-color: #000;
    background: #000;
    color: white;
}

.size-option:hover:not(.active) {
    border-color: #666;
}

.quantity-controls {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.quantity-btn {
    padding: 0.5rem;
    border: 1px solid #d1d5db;
    border-radius: 0.375rem;
    background: white;
    cursor: pointer;
    transition: background-color 0.2s;
}

.quantity-btn:hover {
    background: #f5f5f5;
}

.quantity-value {
    font-size: 1.25rem;
    font-weight: 600;
    min-width: 3rem;
    text-align: center;
}

.stock-status {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.stock-indicator {
    width: 0.75rem;
    height: 0.75rem;
    border-radius: 50%;
    background: #10b981;
}

.stock-status.out-of-stock .stock-indicator {
    background: #ef4444;
}

.product-actions {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.secondary-actions {
    display: flex;
    gap: 1rem;
}

.secondary-actions .btn {
    flex: 1;
}

.shipping-info {
    border-top: 1px solid #e5e5e5;
    padding-top: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.shipping-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: #666;
    font-size: 0.875rem;
}

.shipping-item i {
    color: #666;
}

.related-products {
    margin-top: 4rem;
}

.related-products h2 {
    font-size: 1.5rem;
    font-weight: bold;
    margin-bottom: 2rem;
}

/* Footer */
.footer {
    background: #111;
    color: white;
    padding: 3rem 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.footer-logo .logo-icon {
    background: white;
    color: #000;
}

.footer-section p {
    color: #ccc;
    margin-bottom: 1rem;
    line-height: 1.6;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-links a {
    color: #ccc;
    font-size: 1.25rem;
    transition: color 0.2s;
}

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

.footer-section ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.footer-section ul a {
    color: #ccc;
    text-decoration: none;
    transition: color 0.2s;
}

.footer-section ul a:hover {
    color: white;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: #ccc;
}

.contact-item i {
    color: #ccc;
}

.footer-bottom {
    border-top: 1px solid #333;
    padding-top: 1rem;
    text-align: center;
    color: #ccc;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-desktop {
        display: none;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .nav-mobile.active {
        display: flex;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-description {
        font-size: 1rem;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .controls {
        flex-direction: column;
        align-items: stretch;
    }
    
    .control-buttons {
        justify-content: space-between;
    }
    
    .products-layout {
        grid-template-columns: 1fr;
    }
    
    .filters-sidebar {
        display: none;
    }
    
    .filters-sidebar.active {
        display: block;
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        z-index: 1000;
        background: white;
        padding: 2rem;
        overflow-y: auto;
    }
    
    .product-detail-layout {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .main-image {
        height: 300px;
    }
    
    .secondary-actions {
        flex-direction: column;
    }
    
    .newsletter-form {
        flex-direction: column;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 0.5rem;
    }
    
    .hero-title {
        font-size: 1.75rem;
    }
    
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .categories-grid {
        grid-template-columns: 1fr;
    }
    
    .size-options {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* Utility Classes */
.hidden {
    display: none !important;
}

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

.mb-1 { margin-bottom: 0.25rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 0.75rem; }
.mb-4 { margin-bottom: 1rem; }

.mt-1 { margin-top: 0.25rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-3 { margin-top: 0.75rem; }
.mt-4 { margin-top: 1rem; }

/* Loading and Animation */
.fade-in {
    animation: fadeIn 0.3s ease-in;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.loading {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 200px;
    color: #666;
}

.no-results {
    text-align: center;
    padding: 3rem;
    color: #666;
}

.no-results h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}