:root {
    /* Colors */
    --shop-primary: #2563eb;
    --shop-primary-dark: #1d4ed8;
    --shop-secondary: #f97316;
    --shop-background: #f8fafc;
    --shop-surface: #ffffff;
    --shop-border: #e2e8f0;
    --shop-text: #1e293b;
    --shop-text-light: #64748b;
    --shop-success: #22c55e;
    --shop-error: #ef4444;

    /* Spacing */
    --shop-spacing-xs: 0.25rem;
    --shop-spacing-sm: 0.5rem;
    --shop-spacing-md: 1rem;
    --shop-spacing-lg: 1.5rem;
    --shop-spacing-xl: 2rem;
    --shop-spacing-2xl: 3rem;

    /* Border Radius */
    --shop-radius-sm: 0.375rem;
    --shop-radius-md: 0.5rem;
    --shop-radius-lg: 0.75rem;
    --shop-radius-full: 9999px;

    /* Shadows */
    --shop-shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shop-shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    --shop-shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
}

/* Dark Theme */
[data-theme="dark"] {
    --shop-background: #0f172a;
    --shop-surface: #1e293b;
    --shop-border: #334155;
    --shop-text: #f8fafc;
    --shop-text-light: #94a3b8;
}

/* Base Styles */
body {
    background-color: var(--shop-background);
    color: var(--shop-text);
    font-family: 'Inter', sans-serif;
    line-height: 1.5;
}

/* Shop Navigation */
.shop-nav {
    background: var(--shop-surface);
    border-bottom: 1px solid var(--shop-border);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: var(--shop-spacing-md) 0;
}

.shop-nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--shop-spacing-lg);
}

.shop-logo {
    display: flex;
    align-items: center;
    gap: var(--shop-spacing-sm);
    text-decoration: none;
    color: var(--shop-text);
    font-weight: 600;
    font-size: 1.25rem;
}

.shop-logo i {
    color: var(--shop-primary);
}

.shop-nav-links {
    display: flex;
    align-items: center;
    gap: var(--shop-spacing-xl);
}

.shop-nav-link {
    text-decoration: none;
    color: var(--shop-text-light);
    font-weight: 500;
    transition: color 0.2s;
}

.shop-nav-link:hover {
    color: var(--shop-primary);
}

.shop-nav-link.active {
    color: var(--shop-primary);
}

/* Hero Section */
.shop-hero {
    background: linear-gradient(to right, var(--shop-primary), var(--shop-primary-dark));
    padding: var(--shop-spacing-2xl) 0;
    margin-top: 64px;
    color: white;
}

.shop-hero-content {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--shop-spacing-lg);
    text-align: center;
}

.shop-hero h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: var(--shop-spacing-md);
    line-height: 1.2;
}

.shop-hero p {
    font-size: 1.25rem;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto;
}

/* Category Navigation */
.shop-categories {
    background: var(--shop-surface);
    padding: var(--shop-spacing-lg) 0;
    border-bottom: 1px solid var(--shop-border);
    position: relative;
}

.shop-categories::after {
    content: '';
    position: absolute;
    right: 0;
    top: 0;
    bottom: 0;
    width: 40px;
    background: linear-gradient(to right, transparent, var(--shop-surface));
    pointer-events: none;
}

.category-list {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--shop-spacing-lg);
    display: flex;
    gap: var(--shop-spacing-md);
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scroll-behavior: smooth;
    scrollbar-width: none;
    -ms-overflow-style: none;
    padding-bottom: var(--shop-spacing-sm);
}

.category-list::-webkit-scrollbar {
    display: none;
}

.category-button {
    padding: var(--shop-spacing-sm) var(--shop-spacing-lg);
    border: 1px solid var(--shop-border);
    border-radius: var(--shop-radius-full);
    background: var(--shop-surface);
    color: var(--shop-text);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    white-space: nowrap;
    flex-shrink: 0;
    min-width: max-content;
}

.category-button:hover {
    border-color: var(--shop-primary);
    color: var(--shop-primary);
}

.category-button.active {
    background: var(--shop-primary);
    color: white;
    border-color: var(--shop-primary);
}

/* Product Grid */
.shop-products {
    max-width: 1280px;
    margin: var(--shop-spacing-2xl) auto;
    padding: 0 var(--shop-spacing-lg);
}

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

.product-card {
    background: var(--shop-surface);
    border: 1px solid var(--shop-border);
    border-radius: var(--shop-radius-lg);
    overflow: hidden;
    transition: all 0.3s;
}

.product-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shop-shadow-lg);
}

.product-image {
    position: relative;
    aspect-ratio: 4/3;
    overflow: hidden;
}

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

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

.product-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s;
}

.product-card:hover .product-overlay {
    opacity: 1;
}

.product-content {
    padding: var(--shop-spacing-lg);
}

.product-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--shop-spacing-sm);
}

.product-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--shop-text);
    margin: 0;
}

.product-price {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--shop-primary);
}

.product-description {
    color: var(--shop-text-light);
    margin-bottom: var(--shop-spacing-md);
    line-height: 1.5;
}

.product-meta {
    display: flex;
    align-items: center;
    gap: var(--shop-spacing-md);
    font-size: 0.875rem;
    color: var(--shop-text-light);
}

.product-meta i {
    color: var(--shop-secondary);
}

/* Product Modal */
.shop-modal {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: var(--shop-spacing-md);
}

.modal-container {
    background: var(--shop-surface);
    border-radius: var(--shop-radius-lg);
    max-width: 900px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
}

.modal-close {
    position: absolute;
    top: var(--shop-spacing-md);
    right: var(--shop-spacing-md);
    background: var(--shop-surface);
    border: 1px solid var(--shop-border);
    width: 36px;
    height: 36px;
    border-radius: var(--shop-radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s;
    z-index: 1;
}

.modal-close:hover {
    background: var(--shop-primary);
    color: white;
    border-color: var(--shop-primary);
}

.modal-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--shop-spacing-xl);
    padding: var(--shop-spacing-xl);
}

.modal-image {
    border-radius: var(--shop-radius-lg);
    overflow: hidden;
}

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

.modal-details {
    display: flex;
    flex-direction: column;
    gap: var(--shop-spacing-md);
}

.modal-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--shop-text);
}

.modal-price {
    font-size: 2rem;
    font-weight: 700;
    color: var(--shop-primary);
}

.modal-description {
    color: var(--shop-text-light);
    line-height: 1.6;
}

.modal-features {
    margin-top: var(--shop-spacing-lg);
}

.modal-features h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: var(--shop-spacing-md);
    color: var(--shop-text);
}

.feature-list {
    display: grid;
    gap: var(--shop-spacing-sm);
}

.feature-item {
    display: flex;
    align-items: center;
    gap: var(--shop-spacing-sm);
    color: var(--shop-text);
}

.feature-item i {
    color: var(--shop-success);
}

.modal-actions {
    display: flex;
    gap: var(--shop-spacing-md);
    margin-top: var(--shop-spacing-lg);
}

/* Buttons */
.shop-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--shop-spacing-sm);
    padding: var(--shop-spacing-sm) var(--shop-spacing-lg);
    border-radius: var(--shop-radius-md);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
}

.shop-btn-primary {
    background: var(--shop-primary);
    color: white;
    border: none;
}

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

.shop-btn-secondary {
    background: transparent;
    color: var(--shop-text);
    border: 1px solid var(--shop-border);
}

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

/* Responsive Design */
@media (max-width: 768px) {
    .shop-hero h1 {
        font-size: 2rem;
    }

    .shop-hero p {
        font-size: 1rem;
    }

    .modal-content {
        grid-template-columns: 1fr;
    }

    .modal-image {
        aspect-ratio: 16/9;
    }

    .shop-nav-links {
        display: none;
    }

    .shop-categories {
        padding: var(--shop-spacing-md) 0;
    }

    .category-list {
        gap: var(--shop-spacing-sm);
        padding: 0 var(--shop-spacing-md);
        margin-right: var(--shop-spacing-md);
    }

    .category-button {
        padding: var(--shop-spacing-xs) var(--shop-spacing-md);
        font-size: 0.875rem;
    }

    .shop-categories::after {
        width: 60px;
    }
}

@media (max-width: 480px) {
    .products-grid {
        grid-template-columns: 1fr;
    }

    .category-list {
        gap: var(--shop-spacing-xs);
        padding: 0 var(--shop-spacing-sm);
        margin-right: var(--shop-spacing-sm);
    }

    .category-button {
        padding: var(--shop-spacing-xs) var(--shop-spacing-sm);
        font-size: 0.813rem;
    }
}