/* Frontend Styles - Public Website */
:root {
    --primary: #3b82f6;
    --primary-dark: #2563eb;
    --secondary: #1e40af;
    --accent: #f59e0b;
    --success: #10b981;
    --danger: #ef4444;
    
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-card: #ffffff;
    
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;
    
    --border-color: #e2e8f0;
    --border-radius: 12px;
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px -1px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
    
    --container-width: 1200px;
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    line-height: 1.6;
}

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

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

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

.container {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.site-header {
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo img {
    height: 40px;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.logo-text span {
    color: var(--primary);
}

/* Navigation */
.main-nav ul {
    display: flex;
    list-style: none;
    gap: 8px;
}

.main-nav a {
    display: block;
    padding: 10px 18px;
    color: var(--text-secondary);
    font-weight: 500;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.main-nav a:hover,
.main-nav a.active {
    color: var(--primary);
    background: rgba(59, 130, 246, 0.08);
}

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

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
    padding: 80px 0;
    text-align: center;
}

.hero h1 {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 16px;
    line-height: 1.2;
}

.hero p {
    font-size: 1.25rem;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto 30px;
}

.hero-search {
    max-width: 500px;
    margin: 0 auto;
    position: relative;
}

.hero-search input {
    width: 100%;
    padding: 16px 24px;
    padding-right: 120px;
    font-size: 1rem;
    border: none;
    border-radius: 50px;
    box-shadow: var(--shadow-lg);
}

.hero-search button {
    position: absolute;
    right: 6px;
    top: 50%;
    transform: translateY(-50%);
    padding: 10px 24px;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: 50px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.hero-search button:hover {
    background: var(--primary-dark);
}

.hero-button {
    display: inline-block;
    margin-top: 24px;
    padding: 14px 32px;
    background: white;
    color: var(--primary);
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition);
    box-shadow: var(--shadow-md);
}

.hero-button:hover {
    background: rgba(255, 255, 255, 0.9);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* Categories Bar */
.categories-bar {
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    padding: 12px 0;
}

.categories-list {
    display: flex;
    gap: 12px;
    overflow-x: auto;
    padding-bottom: 4px;
    -webkit-overflow-scrolling: touch;
}

.categories-list::-webkit-scrollbar {
    height: 4px;
}

.categories-list::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

.category-chip {
    display: inline-flex;
    align-items: center;
    padding: 8px 18px;
    background: var(--bg-secondary);
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    white-space: nowrap;
    transition: var(--transition);
}

.category-chip:hover,
.category-chip.active {
    background: var(--primary);
    color: white;
}

/* Products Section */
.products-section {
    padding: 50px 0;
}

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 30px;
}

.section-title {
    font-size: 1.75rem;
    font-weight: 700;
}

.view-all {
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 6px;
}

/* Product Grid */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 24px;
}

/* Product Card */
.product-card {
    background: var(--bg-card);
    border-radius: var(--border-radius);
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: var(--transition);
    position: relative;
}

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

.product-badge {
    position: absolute;
    top: 12px;
    left: 12px;
    padding: 4px 12px;
    background: var(--accent);
    color: white;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 50px;
    z-index: 1;
}

.product-image {
    height: 220px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-secondary);
    padding: 20px;
}

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

.product-info {
    padding: 20px;
}

.product-category {
    font-size: 0.75rem;
    color: var(--primary);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 8px;
}

.product-title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 12px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    line-height: 1.4;
}

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

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

.product-description {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 16px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.product-price {
    display: flex;
    align-items: baseline;
    gap: 10px;
    margin-bottom: 16px;
}

.price-current {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.price-original {
    font-size: 1rem;
    color: var(--text-muted);
    text-decoration: line-through;
}

.product-cta {
    display: block;
    width: 100%;
    padding: 12px;
    background: var(--primary);
    color: white;
    text-align: center;
    font-weight: 600;
    border-radius: 8px;
    transition: var(--transition);
}

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

/* Product Detail Page */
.product-detail {
    padding: 40px 0;
}

.product-detail-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: start;
}

.product-gallery {
    background: var(--bg-card);
    border-radius: var(--border-radius);
    padding: 30px;
    border: 1px solid var(--border-color);
}

.product-gallery-main {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 400px;
    margin-bottom: 16px;
}

.product-gallery-main img {
    max-width: 100%;
    max-height: 400px;
    object-fit: contain;
}

.product-gallery-thumbs {
    display: flex;
    gap: 10px;
    overflow-x: auto;
}

.gallery-thumb {
    width: 70px;
    height: 70px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
    cursor: pointer;
    transition: var(--transition);
}

.gallery-thumb:hover,
.gallery-thumb.active {
    border-color: var(--primary);
}

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

.product-detail-info h1 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 16px;
}

.product-detail-price {
    display: flex;
    align-items: baseline;
    gap: 14px;
    margin-bottom: 20px;
}

.product-detail-price .price-current {
    font-size: 2.25rem;
}

.product-detail-description {
    color: var(--text-secondary);
    margin-bottom: 30px;
    line-height: 1.8;
}

.product-buy-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    width: 100%;
    padding: 16px 32px;
    background: var(--accent);
    color: white;
    font-size: 1.125rem;
    font-weight: 700;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
}

.product-buy-btn:hover {
    background: #d97706;
    color: white;
    transform: scale(1.02);
}

.product-meta {
    margin-top: 30px;
    padding-top: 30px;
    border-top: 1px solid var(--border-color);
}

.product-meta-item {
    display: flex;
    margin-bottom: 10px;
    font-size: 0.875rem;
}

.product-meta-label {
    width: 120px;
    color: var(--text-muted);
}

.product-meta-value {
    font-weight: 500;
}

/* Category Page */
.category-header {
    background: var(--bg-primary);
    padding: 40px 0;
    border-bottom: 1px solid var(--border-color);
}

.category-header h1 {
    font-size: 2rem;
    margin-bottom: 10px;
}

.category-header p {
    color: var(--text-secondary);
}

/* Sidebar */
.page-layout {
    display: grid;
    grid-template-columns: 260px 1fr;
    gap: 30px;
    padding: 40px 0;
}

.page-sidebar {
    background: var(--bg-card);
    border-radius: var(--border-radius);
    padding: 20px;
    border: 1px solid var(--border-color);
    height: fit-content;
    position: sticky;
    top: 90px;
}

.sidebar-section {
    margin-bottom: 24px;
}

.sidebar-section:last-child {
    margin-bottom: 0;
}

.sidebar-title {
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 12px;
    color: var(--text-secondary);
}

.sidebar-categories li {
    list-style: none;
}

.sidebar-categories a {
    display: block;
    padding: 10px 12px;
    color: var(--text-primary);
    border-radius: 8px;
    transition: var(--transition);
}

.sidebar-categories a:hover,
.sidebar-categories a.active {
    background: rgba(59, 130, 246, 0.08);
    color: var(--primary);
}

.price-filter {
    display: flex;
    gap: 10px;
    align-items: center;
}

.price-filter input {
    width: 100%;
    padding: 10px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 0.875rem;
}

.page-content {
    min-width: 0;
}

/* Footer */
.site-footer {
    background: var(--text-primary);
    color: white;
    padding: 60px 0 30px;
    margin-top: 60px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-about p {
    color: rgba(255, 255, 255, 0.7);
    margin-top: 16px;
    line-height: 1.7;
}

.footer-column h4 {
    font-size: 1rem;
    margin-bottom: 20px;
}

.footer-column ul {
    list-style: none;
}

.footer-column a {
    display: block;
    padding: 6px 0;
    color: rgba(255, 255, 255, 0.7);
}

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

.footer-social {
    display: flex;
    gap: 12px;
    margin-top: 20px;
}

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

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

.footer-bottom {
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.875rem;
}

/* Breadcrumb */
.breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 16px 0;
    font-size: 0.875rem;
}

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

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

.breadcrumb span {
    color: var(--text-muted);
}

.breadcrumb-current {
    color: var(--text-primary);
    font-weight: 500;
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 40px;
}

.pagination a,
.pagination span {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 14px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-weight: 500;
    color: var(--text-primary);
    transition: var(--transition);
}

.pagination a:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.pagination .current {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
}

/* Responsive */
@media (max-width: 1024px) {
    .page-layout {
        grid-template-columns: 1fr;
    }
    
    .page-sidebar {
        position: static;
    }
    
    .product-detail-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .header-inner {
        height: 60px;
    }
    
    .main-nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--bg-primary);
        border-bottom: 1px solid var(--border-color);
        padding: 20px;
        z-index: 100;
    }
    
    .main-nav.open {
        display: block;
    }
    
    .main-nav ul {
        flex-direction: column;
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    .hero {
        padding: 50px 0;
    }
    
    .hero h1 {
        font-size: 1.75rem;
    }
    
    .hero p {
        font-size: 0.95rem;
    }
    
    .hero-search input {
        padding: 14px 18px;
        padding-right: 100px;
    }
    
    .hero-search button {
        padding: 8px 16px;
        font-size: 0.875rem;
    }
    
    .section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }
    
    .section-title {
        font-size: 1.5rem;
    }
    
    .products-grid {
        grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
        gap: 12px;
    }
    
    .product-image {
        height: 160px;
        padding: 12px;
    }
    
    .product-info {
        padding: 14px;
    }
    
    .product-title {
        font-size: 0.9rem;
    }
    
    .price-current {
        font-size: 1.25rem;
    }
    
    .product-cta {
        padding: 10px;
        font-size: 0.875rem;
    }
    
    .product-detail-info h1 {
        font-size: 1.5rem;
    }
    
    .product-detail-price .price-current {
        font-size: 1.75rem;
    }
    
    .product-gallery {
        padding: 16px;
    }
    
    .product-gallery-main {
        min-height: 280px;
    }
    
    .product-buy-btn {
        padding: 14px 24px;
        font-size: 1rem;
    }
    
    .product-variants {
        margin: 16px 0;
    }
    
    .variants-list {
        gap: 8px;
    }
    
    .variant-btn {
        padding: 8px 14px !important;
        font-size: 0.875rem !important;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-social {
        justify-content: center;
    }
    
    .container {
        padding: 0 16px;
    }
    
    .products-section {
        padding: 30px 0;
    }
    
    .breadcrumb {
        font-size: 0.8rem;
        flex-wrap: wrap;
    }
    
    .pagination a,
    .pagination span {
        min-width: 36px;
        height: 36px;
        padding: 0 10px;
        font-size: 0.875rem;
    }
}

@media (max-width: 480px) {
    .products-grid {
        grid-template-columns: 1fr 1fr;
        gap: 10px;
    }
    
    .product-image {
        height: 140px;
    }
    
    .product-info {
        padding: 10px;
    }
    
    .product-title {
        font-size: 0.85rem;
        -webkit-line-clamp: 1;
    }
    
    .price-current {
        font-size: 1.1rem;
    }
    
    .product-cta {
        padding: 8px;
        font-size: 0.8rem;
    }
    
    .hero h1 {
        font-size: 1.5rem;
    }
    
    .hero-search {
        padding: 0 10px;
    }
    
    .hero-search input {
        padding: 12px 14px;
        padding-right: 90px;
        font-size: 0.9rem;
    }
    
    .hero-search button {
        padding: 6px 12px;
        font-size: 0.8rem;
    }
    
    .category-chip {
        padding: 6px 14px;
        font-size: 0.8rem;
    }
    
    .footer-column h4 {
        font-size: 0.95rem;
    }
}

/* ===== Blog Styles ===== */
.blog-page {
    padding: 40px 0;
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.blog-card {
    background: var(--bg-card);
    border-radius: var(--border-radius);
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

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

.blog-card-image {
    display: block;
    aspect-ratio: 16/9;
    overflow: hidden;
}

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

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

.blog-card-content {
    padding: 24px;
}

.blog-card-title {
    font-size: 1.25rem;
    margin-bottom: 8px;
    line-height: 1.4;
}

.blog-card-title a {
    color: var(--text-primary);
    text-decoration: none;
}

.blog-card-title a:hover {
    color: var(--primary);
}

.blog-card-meta {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-bottom: 12px;
}

.blog-card-excerpt {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 16px;
}

.blog-card-link {
    color: var(--primary);
    font-weight: 500;
    text-decoration: none;
}

.blog-card-link:hover {
    text-decoration: underline;
}

/* Blog Post Page */
.blog-post-page {
    padding: 40px 0;
}

.container-narrow {
    max-width: 800px;
}

.back-link {
    display: inline-block;
    color: var(--text-muted);
    text-decoration: none;
    margin-bottom: 24px;
    font-size: 0.9rem;
}

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

.blog-post-header {
    margin-bottom: 32px;
}

.blog-post-title {
    font-size: 2.5rem;
    line-height: 1.2;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.blog-post-meta {
    color: var(--text-muted);
    font-size: 0.95rem;
}

.blog-post-featured-image {
    margin-bottom: 32px;
    border-radius: var(--border-radius);
    overflow: hidden;
}

.blog-post-featured-image img {
    width: 100%;
    height: auto;
}

.blog-post-body {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-secondary);
}

.blog-post-body h2 {
    font-size: 1.75rem;
    margin: 40px 0 20px;
    color: var(--text-primary);
}

.blog-post-body h3 {
    font-size: 1.4rem;
    margin: 32px 0 16px;
    color: var(--text-primary);
}

.blog-post-body p {
    margin-bottom: 20px;
}

.blog-post-body ul,
.blog-post-body ol {
    margin-bottom: 20px;
    padding-left: 24px;
}

.blog-post-body li {
    margin-bottom: 8px;
}

.blog-post-body img {
    max-width: 100%;
    height: auto;
    border-radius: var(--border-radius);
    margin: 24px 0;
}

.blog-post-body blockquote {
    border-left: 4px solid var(--primary);
    padding-left: 20px;
    margin: 24px 0;
    font-style: italic;
    color: var(--text-muted);
}

.blog-post-body a {
    color: var(--primary);
}

.blog-post-body code {
    background: var(--bg-primary);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: monospace;
    font-size: 0.9em;
}

.blog-post-body pre {
    background: var(--bg-primary);
    padding: 20px;
    border-radius: var(--border-radius);
    overflow-x: auto;
    margin: 24px 0;
}

.blog-post-body pre code {
    background: none;
    padding: 0;
}

@media (max-width: 768px) {
    .blog-grid {
        grid-template-columns: 1fr;
    }
    
    .blog-post-title {
        font-size: 1.75rem;
    }
    
    .blog-post-body {
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .blog-card-content {
        padding: 16px;
    }
    
    .blog-card-title {
        font-size: 1.1rem;
    }
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    background: var(--bg-primary);
    border-radius: 12px;
    color: var(--text-muted);
}

.empty-state p {
    margin: 0;
    font-size: 1.1rem;
}

/* Error Page */
.error-page {
    text-align: center;
    padding: 80px 20px;
    min-height: 50vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.error-page h1 {
    font-size: 2rem;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.error-page p {
    color: var(--text-muted);
    margin-bottom: 24px;
}

.error-page .btn {
    display: inline-block;
    padding: 12px 24px;
    background: var(--primary-color);
    color: white;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 500;
}

.error-page .btn:hover {
    opacity: 0.9;
}