/* ==========================================================================
   Mens Used Underwear - Main Stylesheet
   ========================================================================== */

/* CSS Variables */
:root {
    --color-primary: #1a1a1a;
    --color-secondary: #2d2d2d;
    --color-accent: #c9a050;
    --color-accent-hover: #b8923f;
    --color-text: #333333;
    --color-text-light: #666666;
    --color-text-muted: #999999;
    --color-background: #ffffff;
    --color-background-alt: #f8f8f8;
    --color-border: #e5e5e5;
    --color-success: #28a745;
    --color-error: #dc3545;
    --color-warning: #ffc107;

    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-heading: 'Playfair Display', Georgia, serif;

    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-xxl: 3rem;

    --max-width: 1200px;
    --header-height: 70px;
    --announcement-height: 40px;

    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;

    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);

    --border-radius: 4px;
    --border-radius-lg: 8px;
}

/* Reset & Base */
*, *::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: 1rem;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-background);
}

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

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

a:hover {
    color: var(--color-accent);
}

ul, ol {
    list-style: none;
}

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.3;
    color: var(--color-primary);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.1rem; }
h6 { font-size: 1rem; }

p {
    margin-bottom: var(--spacing-md);
}

/* Container */
.container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    font-size: 0.875rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-radius: var(--border-radius);
    transition: all var(--transition-fast);
    cursor: pointer;
    text-decoration: none;
}

.btn-primary {
    background-color: var(--color-primary);
    color: #fff;
    border: 2px solid var(--color-primary);
}

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

.btn-secondary {
    background-color: transparent;
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
}

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

.btn-accent {
    background-color: var(--color-accent);
    color: #fff;
    border: 2px solid var(--color-accent);
}

.btn-accent:hover {
    background-color: var(--color-accent-hover);
    border-color: var(--color-accent-hover);
    color: #fff;
}

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

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.75rem;
}

/* ==========================================================================
   Announcement Bar
   ========================================================================== */
.announcement-bar {
    background-color: var(--color-primary);
    color: #fff;
    text-align: center;
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.announcement-bar p {
    margin: 0;
}

/* ==========================================================================
   Header
   ========================================================================== */
.site-header {
    background-color: var(--color-background);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 1000;
}

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

/* Logo */
.logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
    text-decoration: none;
}

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

/* Navigation */
.main-nav {
    display: flex;
    align-items: center;
}

.nav-menu {
    display: flex;
    gap: var(--spacing-xl);
}

.nav-item {
    position: relative;
}

.nav-link {
    font-size: 0.875rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: var(--spacing-sm) 0;
    color: var(--color-text);
}

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

/* Dropdown */
.has-dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background-color: var(--color-background);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
    min-width: 200px;
    padding: var(--spacing-sm) 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all var(--transition-fast);
    z-index: 100;
}

.has-dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-menu li a {
    display: block;
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: 0.875rem;
    color: var(--color-text);
}

.dropdown-menu li a:hover {
    background-color: var(--color-background-alt);
    color: var(--color-accent);
}

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

.cart-link {
    position: relative;
    display: flex;
    align-items: center;
    color: var(--color-text);
}

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

.cart-icon {
    width: 24px;
    height: 24px;
}

.cart-count {
    position: absolute;
    top: -8px;
    right: -8px;
    background-color: var(--color-accent);
    color: #fff;
    font-size: 0.625rem;
    font-weight: 600;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    width: 30px;
    height: 30px;
    position: relative;
}

.hamburger,
.hamburger::before,
.hamburger::after {
    width: 24px;
    height: 2px;
    background-color: var(--color-primary);
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    transition: all var(--transition-fast);
}

.hamburger {
    top: 50%;
    transform: translate(-50%, -50%);
}

.hamburger::before {
    content: '';
    top: -8px;
}

.hamburger::after {
    content: '';
    top: 8px;
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero {
    background-color: var(--color-primary);
    color: #fff;
    padding: var(--spacing-xxl) 0;
    text-align: center;
}

.hero-content {
    max-width: 700px;
    margin: 0 auto;
}

.hero h1 {
    color: #fff;
    font-size: 3rem;
    margin-bottom: var(--spacing-lg);
}

.hero p {
    font-size: 1.125rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--spacing-xl);
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xxl);
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-xl);
    border-top: 1px solid rgba(255, 255, 255, 0.2);
}

.stat {
    text-align: center;
}

.stat-number {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-accent);
}

.stat-label {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.7);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

/* ==========================================================================
   Categories Section
   ========================================================================== */
.categories-section {
    padding: var(--spacing-xxl) 0;
}

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

.section-header h2 {
    margin-bottom: var(--spacing-sm);
}

.section-header p {
    color: var(--color-text-light);
}

.categories-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
}

.category-card {
    position: relative;
    overflow: hidden;
    border-radius: var(--border-radius-lg);
    aspect-ratio: 1;
    background-color: var(--color-background-alt);
}

.category-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-normal);
}

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

.category-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: var(--spacing-lg);
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
    color: #fff;
}

.category-overlay h3 {
    color: #fff;
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xs);
}

.category-overlay span {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.8);
}

/* ==========================================================================
   Products Grid
   ========================================================================== */
.products-section {
    padding: var(--spacing-xxl) 0;
    background-color: var(--color-background-alt);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
}

.product-card {
    background-color: var(--color-background);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
}

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

.product-image {
    position: relative;
    aspect-ratio: 1;
    overflow: hidden;
    background-color: var(--color-background-alt);
}

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

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

.product-badge {
    position: absolute;
    top: var(--spacing-sm);
    left: var(--spacing-sm);
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 0.625rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-radius: var(--border-radius);
}

.badge-sold {
    background-color: var(--color-error);
    color: #fff;
}

.badge-new {
    background-color: var(--color-success);
    color: #fff;
}

.badge-sale {
    background-color: var(--color-warning);
    color: var(--color-primary);
}

.product-info {
    padding: var(--spacing-md);
}

.product-seller {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-xs);
}

.product-title {
    font-family: var(--font-primary);
    font-size: 0.9375rem;
    font-weight: 500;
    margin-bottom: var(--spacing-sm);
    line-height: 1.4;
}

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

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

.product-price {
    font-weight: 600;
    font-size: 1rem;
    color: var(--color-primary);
}

.product-price.sold {
    color: var(--color-text-muted);
    text-decoration: line-through;
}

/* ==========================================================================
   Product Page
   ========================================================================== */
.product-page {
    padding: var(--spacing-xxl) 0;
}

.product-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xxl);
}

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

.product-main-image {
    aspect-ratio: 1;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    background-color: var(--color-background-alt);
}

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

.product-details h1 {
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
}

.product-meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--color-border);
}

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

.product-meta .category {
    font-size: 0.875rem;
    color: var(--color-accent);
}

.product-page-price {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--spacing-lg);
}

.product-description {
    color: var(--color-text-light);
    margin-bottom: var(--spacing-xl);
    line-height: 1.8;
}

.product-actions {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

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

.product-features {
    background-color: var(--color-background-alt);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
}

.product-features h4 {
    margin-bottom: var(--spacing-md);
}

.product-features ul {
    list-style: none;
}

.product-features li {
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--color-border);
    font-size: 0.875rem;
}

.product-features li:last-child {
    border-bottom: none;
}

/* ==========================================================================
   Category Page
   ========================================================================== */
.category-page {
    padding: var(--spacing-xxl) 0;
}

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

.category-header h1 {
    margin-bottom: var(--spacing-sm);
}

.category-header p {
    color: var(--color-text-light);
    max-width: 600px;
    margin: 0 auto;
}

.filter-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) 0;
    margin-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--color-border);
}

.filter-count {
    font-size: 0.875rem;
    color: var(--color-text-light);
}

.filter-sort select {
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    font-size: 0.875rem;
    background-color: var(--color-background);
}

/* ==========================================================================
   Cart Page
   ========================================================================== */
.cart-page {
    padding: var(--spacing-xxl) 0;
}

.cart-layout {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-xxl);
}

.cart-items {
    background-color: var(--color-background);
}

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

.cart-item-image {
    aspect-ratio: 1;
    border-radius: var(--border-radius);
    overflow: hidden;
    background-color: var(--color-background-alt);
}

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

.cart-item-details h4 {
    font-family: var(--font-primary);
    font-weight: 500;
    margin-bottom: var(--spacing-xs);
}

.cart-item-details .seller {
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

.cart-item-price {
    font-weight: 600;
    font-size: 1.125rem;
}

.cart-item-remove {
    color: var(--color-text-muted);
    font-size: 0.75rem;
    margin-top: var(--spacing-sm);
}

.cart-item-remove:hover {
    color: var(--color-error);
}

.cart-summary {
    background-color: var(--color-background-alt);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    height: fit-content;
    position: sticky;
    top: calc(var(--header-height) + var(--spacing-lg));
}

.cart-summary h3 {
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--color-border);
}

.summary-row {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-sm) 0;
    font-size: 0.9375rem;
}

.summary-row.total {
    font-weight: 600;
    font-size: 1.125rem;
    border-top: 1px solid var(--color-border);
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-md);
}

.cart-summary .btn {
    width: 100%;
    margin-top: var(--spacing-lg);
}

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

.empty-cart h2 {
    margin-bottom: var(--spacing-md);
}

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

/* ==========================================================================
   Blog
   ========================================================================== */
.blog-page {
    padding: var(--spacing-xxl) 0;
}

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

.blog-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
}

.blog-card {
    background-color: var(--color-background);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
}

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

.blog-card-image {
    aspect-ratio: 16/10;
    overflow: hidden;
    background-color: var(--color-background-alt);
}

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

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

.blog-card-content {
    padding: var(--spacing-lg);
}

.blog-card-date {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-sm);
}

.blog-card-title {
    font-family: var(--font-primary);
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    line-height: 1.4;
}

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

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

.blog-card-excerpt {
    font-size: 0.875rem;
    color: var(--color-text-light);
    line-height: 1.6;
}

/* Blog Post */
.blog-post-page {
    padding: var(--spacing-xxl) 0;
}

.blog-post-header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto var(--spacing-xl);
}

.blog-post-meta {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-md);
}

.blog-post-header h1 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-lg);
}

.blog-post-image {
    max-width: 900px;
    margin: 0 auto var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
}

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

.blog-post-content {
    max-width: 700px;
    margin: 0 auto;
}

.blog-post-content h2 {
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
}

.blog-post-content h3 {
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
}

.blog-post-content p {
    margin-bottom: var(--spacing-lg);
    line-height: 1.8;
}

.blog-post-content ul,
.blog-post-content ol {
    margin-bottom: var(--spacing-lg);
    padding-left: var(--spacing-xl);
}

.blog-post-content li {
    margin-bottom: var(--spacing-sm);
    line-height: 1.8;
}

.blog-post-content ul {
    list-style: disc;
}

.blog-post-content ol {
    list-style: decimal;
}

/* ==========================================================================
   Static Pages (About, Contact, Sell)
   ========================================================================== */
.static-page {
    padding: var(--spacing-xxl) 0;
}

.page-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--spacing-xl);
}

.page-header h1 {
    margin-bottom: var(--spacing-md);
}

.page-header p {
    color: var(--color-text-light);
    font-size: 1.125rem;
}

.page-content {
    max-width: 800px;
    margin: 0 auto;
}

.page-content h2 {
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
}

.page-content p {
    margin-bottom: var(--spacing-lg);
    line-height: 1.8;
}

/* Contact Form */
.contact-form {
    max-width: 600px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-group label {
    display: block;
    font-weight: 500;
    margin-bottom: var(--spacing-sm);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: var(--spacing-md);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-family: var(--font-primary);
    transition: border-color var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-accent);
}

.form-group textarea {
    min-height: 150px;
    resize: vertical;
}

/* Seller Page */
.seller-benefits {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
    margin: var(--spacing-xxl) 0;
}

.benefit-card {
    text-align: center;
    padding: var(--spacing-xl);
    background-color: var(--color-background-alt);
    border-radius: var(--border-radius-lg);
}

.benefit-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto var(--spacing-md);
    background-color: var(--color-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.benefit-icon svg {
    width: 28px;
    height: 28px;
    stroke: #fff;
}

.benefit-card h3 {
    margin-bottom: var(--spacing-sm);
}

.benefit-card p {
    font-size: 0.875rem;
    color: var(--color-text-light);
    margin-bottom: 0;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
    background-color: var(--color-primary);
    color: #fff;
    padding: var(--spacing-xxl) 0 var(--spacing-lg);
}

.footer-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr repeat(3, 1fr);
    gap: var(--spacing-xxl);
    padding-bottom: var(--spacing-xl);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-heading {
    color: #fff;
    font-size: 1rem;
    margin-bottom: var(--spacing-lg);
}

.footer-text {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.6;
    margin-bottom: var(--spacing-lg);
}

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

.footer-links a {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.7);
    transition: color var(--transition-fast);
}

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

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

.social-link {
    width: 40px;
    height: 40px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    transition: all var(--transition-fast);
}

.social-link:hover {
    background-color: var(--color-accent);
    border-color: var(--color-accent);
    color: #fff;
}

.footer-bottom {
    padding-top: var(--spacing-lg);
    text-align: center;
}

.copyright {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: var(--spacing-xs);
}

.footer-note {
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.5);
}

/* ==========================================================================
   Breadcrumbs
   ========================================================================== */
.breadcrumbs {
    padding: var(--spacing-md) 0;
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

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

.breadcrumbs a:hover {
    color: var(--color-accent);
}

.breadcrumbs span {
    margin: 0 var(--spacing-sm);
}

/* ==========================================================================
   Messages / Alerts
   ========================================================================== */
.alert {
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-lg);
}

.alert-success {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.alert-error {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.alert-info {
    background-color: #d1ecf1;
    color: #0c5460;
    border: 1px solid #bee5eb;
}

/* ==========================================================================
   Responsive Design
   ========================================================================== */
@media (max-width: 1024px) {
    .categories-grid,
    .products-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .seller-benefits {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    html {
        font-size: 15px;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .hero-stats {
        flex-direction: column;
        gap: var(--spacing-lg);
    }

    .categories-grid,
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .blog-grid {
        grid-template-columns: 1fr;
    }

    .product-layout {
        grid-template-columns: 1fr;
    }

    .cart-layout {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }

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

    .seller-benefits {
        grid-template-columns: 1fr;
    }

    /* Mobile Navigation */
    .main-nav {
        position: fixed;
        top: calc(var(--announcement-height) + var(--header-height));
        left: 0;
        right: 0;
        bottom: 0;
        background-color: var(--color-background);
        padding: var(--spacing-xl);
        transform: translateX(-100%);
        transition: transform var(--transition-normal);
        overflow-y: auto;
    }

    .main-nav.active {
        transform: translateX(0);
    }

    .nav-menu {
        flex-direction: column;
        gap: 0;
    }

    .nav-item {
        border-bottom: 1px solid var(--color-border);
    }

    .nav-link {
        display: block;
        padding: var(--spacing-md) 0;
    }

    .dropdown-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        border: none;
        padding-left: var(--spacing-lg);
        display: none;
    }

    .has-dropdown.active .dropdown-menu {
        display: block;
    }

    .mobile-menu-toggle {
        display: block;
    }
}

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

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

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

    .cart-item {
        grid-template-columns: 80px 1fr;
    }

    .cart-item-price {
        grid-column: 2;
    }
}

/* ==========================================================================
   Placeholder Images
   ========================================================================== */
.placeholder-image {
    background: linear-gradient(135deg, var(--color-background-alt) 0%, #e0e0e0 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-muted);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}