/* Karmone Marketplace Main Styles - Optimized */
:root {
    --primary-color: #4a6fa5;
    --secondary-color: #ff7e5f;
    --accent-color: #6b5b95;
    --text-color: #333333;
    --text-light: #666666;
    --text-lighter: #999999;
    --border-color: #e0e0e0;
    --border-light: #f0f0f0;
    --bg-color: #ffffff;
    --bg-light: #f8f9fa;
    --bg-lighter: #fdfdfd;
    --shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 5px 20px rgba(0, 0, 0, 0.15);
    --radius: 4px;
    --radius-lg: 8px;
    --transition: all 0.3s ease;
    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    --font-heading: 'Poppins', var(--font-main);
}

/* Reset و پایه */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-main);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-color);
    overflow-x: hidden;
    min-height: 100vh;
}

/* Container بهبود یافته */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Typography بهبود یافته */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.3;
    color: var(--text-color);
    margin-top: 0;
}

h1 { 
    font-size: 2.5rem;
    margin-bottom: 1.25rem;
}

h2 { 
    font-size: 2rem;
    margin-bottom: 1rem;
}

h3 { 
    font-size: 1.75rem;
    margin-bottom: 0.875rem;
}

h4 { 
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
}

h5 { 
    font-size: 1.25rem;
    margin-bottom: 0.625rem;
}

h6 { 
    font-size: 1rem;
    margin-bottom: 0.5rem;
}

p {
    margin-bottom: 1rem;
    line-height: 1.7;
}

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

a:hover,
a:focus {
    color: var(--secondary-color);
    text-decoration: underline;
}

/* بهبود Accessibility برای فوکوس */
a:focus-visible,
button:focus-visible,
input:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Layout اصلی */
.site-main {
    padding: 20px 0 40px;
    min-height: 60vh;
}

#primary {
    overflow: hidden;
}

.page-content {
    padding: 30px 0;
}

/* Header - بهینه سازی فاصله‌ها */
.site-header {
    background-color: var(--bg-color);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: transform 0.3s ease;
}

.site-header.header-hidden {
    transform: translateY(-100%);
}

.header-top {
    background-color: var(--bg-light);
    padding: 6px 0;
    font-size: 0.875rem;
    border-bottom: 1px solid var(--border-light);
}

.header-top .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 15px;
}

.top-menu {
    display: flex;
    list-style: none;
    gap: 15px;
    margin: 0;
    padding: 0;
}

.top-menu li {
    margin: 0;
}

.top-menu a {
    color: var(--text-light);
    font-size: 0.8125rem;
    padding: 4px 0;
}

.top-menu a:hover {
    color: var(--primary-color);
    text-decoration: none;
}

.header-top-right {
    display: flex;
    align-items: center;
    gap: 15px;
}

.user-menu {
    position: relative;
    display: inline-block;
}

.user-account {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--text-color);
    cursor: pointer;
    padding: 4px 8px;
    border-radius: var(--radius);
    transition: var(--transition);
}

.user-account:hover {
    background-color: rgba(74, 111, 165, 0.1);
}

.user-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    background-color: var(--bg-color);
    box-shadow: var(--shadow-lg);
    border-radius: var(--radius);
    padding: 10px 0;
    min-width: 180px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all 0.3s ease;
    z-index: 100;
}

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

.user-dropdown a {
    display: block;
    padding: 8px 16px;
    color: var(--text-color);
    font-size: 0.875rem;
    transition: var(--transition);
}

.user-dropdown a:hover {
    background-color: var(--bg-light);
    color: var(--primary-color);
    text-decoration: none;
}

.auth-links {
    display: flex;
    gap: 10px;
}

.auth-links a {
    font-size: 0.8125rem;
    padding: 4px 12px;
    border-radius: var(--radius);
    transition: var(--transition);
}

.auth-links a.login {
    color: var(--text-color);
}

.auth-links a.register {
    background-color: var(--primary-color);
    color: white;
    padding: 4px 12px;
}

.auth-links a.register:hover {
    background-color: var(--secondary-color);
}

.header-cart {
    position: relative;
    display: inline-block;
}

.cart-contents {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--text-color);
    padding: 4px 8px;
    border-radius: var(--radius);
    transition: var(--transition);
}

.cart-contents:hover {
    background-color: rgba(74, 111, 165, 0.1);
}

.cart-count {
    background-color: var(--secondary-color);
    color: white;
    font-size: 0.6875rem;
    font-weight: 600;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.cart-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    width: 320px;
    background-color: var(--bg-color);
    box-shadow: var(--shadow-lg);
    border-radius: var(--radius);
    padding: 20px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all 0.3s ease;
    z-index: 100;
}

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

.cart-items {
    max-height: 300px;
    overflow-y: auto;
    margin-bottom: 15px;
}

.cart-item {
    display: flex;
    gap: 10px;
    padding: 10px 0;
    border-bottom: 1px solid var(--border-light);
}

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

.cart-item-image img {
    width: 60px;
    height: 60px;
    object-fit: cover;
    border-radius: var(--radius);
}

.cart-item-details {
    flex: 1;
}

.cart-item-details h4 {
    font-size: 0.875rem;
    margin-bottom: 5px;
}

.cart-item-price {
    color: var(--primary-color);
    font-weight: 600;
    font-size: 0.875rem;
}

.cart-item-remove {
    color: var(--text-lighter);
    font-size: 1.25rem;
    line-height: 1;
    cursor: pointer;
    transition: var(--transition);
}

.cart-item-remove:hover {
    color: #f44336;
}

.cart-total {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
    border-top: 2px solid var(--border-color);
    font-weight: 600;
}

.cart-actions {
    display: flex;
    gap: 10px;
}

.cart-actions .btn {
    flex: 1;
    padding: 8px 16px;
    font-size: 0.875rem;
}

.header-main {
    padding: 15px 0;
    border-bottom: 1px solid var(--border-light);
}

.header-main .container {
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: 25px;
    align-items: center;
}

.site-branding {
    display: flex;
    align-items: center;
}

.site-branding .custom-logo {
    max-height: 45px;
    width: auto;
    transition: var(--transition);
}

.site-branding:hover .custom-logo {
    opacity: 0.9;
}

.header-search {
    position: relative;
    max-width: 600px;
    margin: 0 auto;
}

.search-field {
    width: 100%;
    padding: 12px 50px 12px 20px;
    border: 2px solid var(--border-color);
    border-radius: 50px;
    font-size: 0.9375rem;
    transition: var(--transition);
    background-color: var(--bg-lighter);
}

.search-field:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(74, 111, 165, 0.1);
    background-color: var(--bg-color);
}

.search-submit {
    position: absolute;
    right: 6px;
    top: 50%;
    transform: translateY(-50%);
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 50%;
    width: 38px;
    height: 38px;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.search-submit:hover {
    background-color: var(--secondary-color);
    transform: translateY(-50%) scale(1.05);
}

.live-search-results {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--bg-color);
    box-shadow: var(--shadow-lg);
    border-radius: var(--radius);
    max-height: 400px;
    overflow-y: auto;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all 0.3s ease;
    z-index: 100;
}

.search-field:focus + .live-search-results {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.search-result-item {
    padding: 12px;
    border-bottom: 1px solid var(--border-light);
    transition: var(--transition);
}

.search-result-item:hover {
    background-color: var(--bg-light);
}

.search-result-item a {
    display: flex;
    gap: 12px;
    color: var(--text-color);
}

.search-result-image img {
    width: 50px;
    height: 50px;
    object-fit: cover;
    border-radius: var(--radius);
    flex-shrink: 0;
}

.search-result-details h4 {
    margin-bottom: 5px;
    font-size: 0.875rem;
    line-height: 1.4;
}

.search-result-details .price {
    color: var(--primary-color);
    font-weight: 600;
    font-size: 0.875rem;
}

.no-results {
    padding: 20px;
    text-align: center;
    color: var(--text-light);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 15px;
}

.wishlist-icon a {
    display: flex;
    align-items: center;
    gap: 5px;
    color: var(--text-color);
    position: relative;
    padding: 8px;
    border-radius: var(--radius);
    transition: var(--transition);
}

.wishlist-icon a:hover {
    background-color: rgba(74, 111, 165, 0.1);
}

.wishlist-count {
    background-color: var(--secondary-color);
    color: white;
    font-size: 0.6875rem;
    font-weight: 600;
    min-width: 18px;
    height: 18px;
    padding: 0 4px;
    border-radius: 9px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: absolute;
    top: 0;
    right: 0;
    transform: translate(25%, -25%);
}

.category-dropdown {
    position: relative;
}

.category-toggle {
    display: flex;
    align-items: center;
    gap: 8px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 10px 18px;
    border-radius: var(--radius);
    cursor: pointer;
    font-weight: 500;
    font-size: 0.9375rem;
    transition: var(--transition);
}

.category-toggle:hover {
    background-color: var(--secondary-color);
}

.category-menu {
    position: absolute;
    top: 100%;
    left: 0;
    width: 280px;
    background-color: var(--bg-color);
    box-shadow: var(--shadow-lg);
    border-radius: var(--radius);
    padding: 15px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all 0.3s ease;
    z-index: 100;
}

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

.category-menu ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.category-menu li {
    margin-bottom: 4px;
}

.category-menu li a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 10px;
    color: var(--text-color);
    border-radius: var(--radius);
    transition: var(--transition);
}

.category-menu li a:hover {
    background-color: var(--bg-light);
    color: var(--primary-color);
    text-decoration: none;
}

.category-menu img {
    width: 30px;
    height: 30px;
    object-fit: cover;
    border-radius: 4px;
    flex-shrink: 0;
}

.category-name {
    flex: 1;
    font-size: 0.875rem;
}

.category-count {
    color: var(--text-lighter);
    font-size: 0.75rem;
    background-color: var(--bg-light);
    padding: 2px 6px;
    border-radius: 10px;
}

.view-all-categories {
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px solid var(--border-color);
}

.view-all-categories a {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--primary-color);
    font-weight: 500;
    font-size: 0.875rem;
    padding: 6px 10px;
    border-radius: var(--radius);
    transition: var(--transition);
}

.view-all-categories a:hover {
    background-color: var(--bg-light);
    text-decoration: none;
}

.header-navigation {
    background-color: var(--bg-light);
    padding: 12px 0;
    border-bottom: 1px solid var(--border-color);
}

.header-navigation .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.main-navigation ul {
    display: flex;
    list-style: none;
    gap: 20px;
    margin: 0;
    padding: 0;
}

.main-navigation li {
    position: relative;
}

.main-navigation a {
    color: var(--text-color);
    font-weight: 500;
    font-size: 0.9375rem;
    position: relative;
    padding: 8px 0;
    display: block;
}

.main-navigation a:hover {
    color: var(--primary-color);
    text-decoration: none;
}

.main-navigation a:after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: var(--transition);
}

.main-navigation a:hover:after {
    width: 100%;
}

.header-promo .promo-text {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--primary-color);
    font-weight: 500;
    font-size: 0.875rem;
    animation: fadeInOut 3s infinite;
}

@keyframes fadeInOut {
    0%, 100% { 
        opacity: 1; 
    }
    50% { 
        opacity: 0.7; 
    }
}

/* Mobile Header */
.header-mobile {
    display: none;
    background-color: var(--bg-color);
    box-shadow: var(--shadow);
    padding: 12px 0;
    border-bottom: 1px solid var(--border-light);
}

.header-mobile .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 15px;
}

.mobile-logo img {
    max-height: 38px;
    width: auto;
}

.mobile-menu-toggle {
    background: none;
    border: none;
    color: var(--text-color);
    font-size: 1.5rem;
    cursor: pointer;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius);
    transition: var(--transition);
}

.mobile-menu-toggle:hover {
    background-color: var(--bg-light);
    color: var(--primary-color);
}

.mobile-search {
    padding: 15px;
    border-top: 1px solid var(--border-color);
}

.mobile-search .search-field {
    width: 100%;
    padding: 10px 15px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
}

.mobile-menu {
    position: fixed;
    top: 0;
    left: -100%;
    width: 320px;
    height: 100vh;
    background-color: var(--bg-color);
    box-shadow: var(--shadow-lg);
    transition: var(--transition);
    z-index: 1100;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
}

.mobile-menu.active {
    left: 0;
}

.mobile-menu-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    border-bottom: 1px solid var(--border-color);
    background-color: var(--bg-light);
}

.mobile-menu-close {
    background: none;
    border: none;
    color: var(--text-color);
    font-size: 1.5rem;
    cursor: pointer;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius);
    transition: var(--transition);
}

.mobile-menu-close:hover {
    background-color: rgba(0, 0, 0, 0.1);
}

.mobile-menu-nav {
    padding: 20px;
    flex: 1;
}

.mobile-menu-nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.mobile-menu-nav li {
    margin-bottom: 5px;
}

.mobile-menu-nav a {
    display: block;
    padding: 12px 15px;
    color: var(--text-color);
    border-radius: var(--radius);
    transition: var(--transition);
    font-weight: 500;
}

.mobile-menu-nav a:hover {
    background-color: var(--bg-light);
    color: var(--primary-color);
    text-decoration: none;
}

.mobile-menu-actions {
    padding: 20px;
    border-top: 1px solid var(--border-color);
    background-color: var(--bg-light);
}

.mobile-menu-actions .auth-links {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.mobile-menu-actions .auth-links a {
    display: block;
    text-align: center;
    padding: 10px;
    border-radius: var(--radius);
}

/* Hero Section - بهینه سازی شده */
.hero-section {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 100%);
    color: white;
    padding: 50px 0;
    margin: 0 0 30px;
    position: relative;
    overflow: hidden;
}

.hero-section:before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 600" opacity="0.1"><path fill="white" d="M0,0V600H1200V0ZM600,300A150,150,0,1,1,300,300,150,150,0,0,1,600,300Z"/></svg>');
    background-size: cover;
    opacity: 0.1;
}

.hero-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.hero-content h1 {
    font-size: 2.75rem;
    color: white;
    margin-bottom: 1.25rem;
    line-height: 1.2;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.hero-content p {
    font-size: 1.125rem;
    margin-bottom: 2rem;
    opacity: 0.95;
    line-height: 1.6;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons {
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 28px;
    border-radius: var(--radius);
    font-weight: 500;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid transparent;
    font-size: 1rem;
    line-height: 1.4;
    text-decoration: none;
    position: relative;
    overflow: hidden;
}

.btn:before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.2);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:hover:before {
    width: 300px;
    height: 300px;
}

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

.btn-primary:hover {
    background-color: #ff6b4a;
    border-color: #ff6b4a;
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(255, 126, 95, 0.3);
}

.btn-secondary {
    background-color: transparent;
    color: white;
    border-color: rgba(255, 255, 255, 0.5);
}

.btn-secondary:hover {
    background-color: white;
    color: var(--primary-color);
    border-color: white;
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(255, 255, 255, 0.2);
}

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

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

.btn-sm {
    padding: 8px 20px;
    font-size: 0.875rem;
}

.btn-lg {
    padding: 14px 32px;
    font-size: 1.125rem;
}

.btn-full {
    width: 100%;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none !important;
}

/* Categories Grid - بهینه سازی شده */
.categories-section {
    padding: 40px 0;
}

.section-title {
    text-align: center;
    margin-bottom: 30px;
}

.section-title h2 {
    font-size: 2.25rem;
    color: var(--text-color);
    margin-bottom: 0.75rem;
    position: relative;
    display: inline-block;
}

.section-title h2:after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background-color: var(--primary-color);
    border-radius: 2px;
}

.section-title p {
    color: var(--text-light);
    max-width: 600px;
    margin: 1.5rem auto 0;
    font-size: 1.0625rem;
    line-height: 1.7;
}

.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 25px;
    margin-bottom: 30px;
}

.category-card {
    background-color: var(--bg-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    position: relative;
    border: 1px solid var(--border-light);
}

.category-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.category-image {
    height: 180px;
    overflow: hidden;
    position: relative;
}

.category-image:before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to bottom, transparent 50%, rgba(0, 0, 0, 0.3));
    z-index: 1;
}

.category-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.category-card:hover .category-image img {
    transform: scale(1.08);
}

.category-content {
    padding: 20px;
    text-align: center;
    position: relative;
    z-index: 2;
}

.category-content h3 {
    margin-bottom: 8px;
    font-size: 1.125rem;
    font-weight: 600;
}

.category-count {
    color: var(--text-lighter);
    font-size: 0.875rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 5px;
}

.category-link {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 2;
}

/* Products Grid - بهینه سازی شده */
.products-section {
    padding: 40px 0;
    background-color: var(--bg-light);
}

.products-filter {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 25px;
    flex-wrap: wrap;
    gap: 15px;
}

.filter-options {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.filter-btn {
    background: none;
    border: 1px solid var(--border-color);
    padding: 8px 18px;
    border-radius: 50px;
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-light);
}

.filter-btn:hover,
.filter-btn.active {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    box-shadow: 0 4px 12px rgba(74, 111, 165, 0.2);
}

.sort-select {
    padding: 8px 15px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    font-size: 0.875rem;
    color: var(--text-color);
    background-color: var(--bg-color);
    cursor: pointer;
    transition: var(--transition);
}

.sort-select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(74, 111, 165, 0.1);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 25px;
    margin-bottom: 30px;
}

.product-card {
    background-color: var(--bg-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    position: relative;
    border: 1px solid var(--border-light);
}

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

.product-badges {
    position: absolute;
    top: 12px;
    left: 12px;
    z-index: 2;
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.badge {
    padding: 4px 10px;
    border-radius: var(--radius);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    display: inline-block;
}

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

.badge-featured {
    background-color: var(--accent-color);
    color: white;
}

.badge-new {
    background-color: #4CAF50;
    color: white;
}

.badge-out-of-stock {
    background-color: #f44336;
    color: white;
}

.badge-free-shipping {
    background-color: #2196F3;
    color: white;
}

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

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

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

.product-actions {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: rgba(255, 255, 255, 0.95);
    display: flex;
    justify-content: center;
    gap: 8px;
    padding: 12px;
    transform: translateY(100%);
    transition: transform 0.3s ease;
    border-top: 1px solid var(--border-light);
}

.product-card:hover .product-actions {
    transform: translateY(0);
}

.action-btn {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    color: var(--text-color);
}

.action-btn:hover {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    transform: scale(1.1);
}

.action-btn.wishlist.active {
    background-color: var(--secondary-color);
    color: white;
    border-color: var(--secondary-color);
}

.product-content {
    padding: 20px;
}

.product-title {
    font-size: 0.9375rem;
    margin-bottom: 10px;
    line-height: 1.4;
    height: 40px;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

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

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

.product-price {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
    flex-wrap: wrap;
}

.current-price {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--primary-color);
}

.old-price {
    font-size: 0.875rem;
    color: var(--text-lighter);
    text-decoration: line-through;
}

.discount {
    background-color: var(--secondary-color);
    color: white;
    font-size: 0.75rem;
    font-weight: 600;
    padding: 2px 6px;
    border-radius: var(--radius);
}

.product-rating {
    display: flex;
    align-items: center;
    gap: 5px;
    margin-bottom: 15px;
}

.stars {
    color: #ffc107;
    display: flex;
    gap: 1px;
}

.rating-count {
    color: var(--text-lighter);
    font-size: 0.8125rem;
    margin-left: 5px;
}

.product-vendor {
    display: flex;
    align-items: center;
    gap: 10px;
    padding-top: 15px;
    border-top: 1px solid var(--border-color);
}

.vendor-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    overflow: hidden;
    border: 2px solid var(--bg-light);
}

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

.vendor-name {
    font-size: 0.8125rem;
    color: var(--text-light);
    transition: var(--transition);
}

.vendor-name:hover {
    color: var(--primary-color);
    text-decoration: none;
}

.product-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 15px;
    padding-top: 15px;
    border-top: 1px solid var(--border-light);
    font-size: 0.8125rem;
    color: var(--text-lighter);
}

.product-stock {
    display: flex;
    align-items: center;
    gap: 5px;
}

.stock-available {
    color: #4CAF50;
}

.stock-low {
    color: #FF9800;
}

.stock-out {
    color: #f44336;
}

.load-more {
    text-align: center;
    margin-top: 40px;
}

.load-more-btn {
    padding: 12px 40px;
    background-color: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    border-radius: 50px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.load-more-btn:hover {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(74, 111, 165, 0.3);
}

.load-more-btn.loading {
    opacity: 0.7;
    cursor: wait;
}

.load-more-btn.loading:after {
    content: '';
    width: 16px;
    height: 16px;
    border: 2px solid currentColor;
    border-radius: 50%;
    border-top-color: transparent;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Vendors Grid - بهینه سازی شده */
.vendors-section {
    padding: 40px 0;
}

.vendors-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 25px;
}

.vendor-card {
    background-color: var(--bg-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid var(--border-light);
    position: relative;
}

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

.vendor-banner {
    height: 140px;
    overflow: hidden;
    position: relative;
}

.vendor-banner:before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to bottom, transparent 50%, rgba(0, 0, 0, 0.4));
    z-index: 1;
}

.vendor-banner img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

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

.vendor-info {
    padding: 25px 20px 20px;
    text-align: center;
    position: relative;
}

.vendor-avatar-large {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    overflow: hidden;
    border: 4px solid var(--bg-color);
    position: absolute;
    top: -40px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    box-shadow: var(--shadow);
    background-color: var(--bg-color);
}

.vendor-avatar-large img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.vendor-details {
    margin-top: 35px;
}

.vendor-name {
    font-size: 1.125rem;
    margin-bottom: 6px;
    font-weight: 600;
}

.vendor-category {
    color: var(--text-light);
    font-size: 0.875rem;
    margin-bottom: 10px;
}

.vendor-rating {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 5px;
    margin-bottom: 15px;
    color: var(--text-light);
    font-size: 0.875rem;
}

.vendor-stats {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 15px;
    padding: 15px 0;
    border-top: 1px solid var(--border-light);
    border-bottom: 1px solid var(--border-light);
}

.stat {
    text-align: center;
    flex: 1;
}

.stat-value {
    display: block;
    font-weight: 600;
    color: var(--primary-color);
    font-size: 1.125rem;
    line-height: 1.2;
}

.stat-label {
    display: block;
    font-size: 0.75rem;
    color: var(--text-lighter);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-top: 3px;
}

.vendor-actions {
    display: flex;
    gap: 10px;
    justify-content: center;
}

.btn-vendor {
    padding: 8px 20px;
    border-radius: var(--radius);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

.btn-follow {
    background-color: var(--primary-color);
    color: white;
    flex: 1;
    justify-content: center;
}

.btn-follow:hover {
    background-color: var(--secondary-color);
    transform: translateY(-2px);
}

.btn-follow.following {
    background-color: var(--accent-color);
}

.btn-store {
    background-color: transparent;
    color: var(--primary-color);
    border: 1px solid var(--primary-color);
    flex: 1;
    justify-content: center;
}

.btn-store:hover {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

.vendor-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
    justify-content: center;
    margin-top: 15px;
}

.vendor-tag {
    background-color: var(--bg-light);
    color: var(--text-light);
    font-size: 0.75rem;
    padding: 3px 8px;
    border-radius: 10px;
    border: 1px solid var(--border-color);
}

/* Features Section - بهینه سازی شده */
.features-section {
    padding: 40px 0;
    background-color: var(--bg-light);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
}

.feature-card {
    text-align: center;
    padding: 30px 25px;
    background-color: var(--bg-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid transparent;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
}

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

.feature-icon {
    width: 70px;
    height: 70px;
    background-color: rgba(74, 111, 165, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    color: var(--primary-color);
    font-size: 2rem;
    transition: var(--transition);
}

.feature-card:hover .feature-icon {
    background-color: var(--primary-color);
    color: white;
    transform: scale(1.1);
}

.feature-content {
    flex: 1;
}

.feature-content h3 {
    margin-bottom: 12px;
    font-size: 1.125rem;
    font-weight: 600;
}

.feature-content p {
    color: var(--text-light);
    font-size: 0.875rem;
    line-height: 1.6;
    margin-bottom: 0;
}

/* Newsletter - بهینه سازی شده */
.newsletter-section {
    padding: 40px 0;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 100%);
    color: white;
    position: relative;
    overflow: hidden;
}

.newsletter-section:before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 400" opacity="0.1"><circle cx="600" cy="200" r="150" fill="white"/></svg>');
    background-size: cover;
    opacity: 0.1;
}

.newsletter-content {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.newsletter-content h2 {
    color: white;
    margin-bottom: 15px;
    font-size: 2.25rem;
}

.newsletter-content p {
    opacity: 0.9;
    margin-bottom: 25px;
    font-size: 1.0625rem;
    line-height: 1.6;
}

.newsletter-form {
    display: flex;
    gap: 10px;
    max-width: 500px;
    margin: 30px auto 0;
}

.newsletter-form input {
    flex: 1;
    padding: 14px 20px;
    border: none;
    border-radius: var(--radius);
    font-size: 1rem;
    background-color: rgba(255, 255, 255, 0.95);
    transition: var(--transition);
}

.newsletter-form input:focus {
    outline: none;
    background-color: white;
    box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.3);
}

.newsletter-form button {
    padding: 14px 30px;
    background-color: var(--secondary-color);
    color: white;
    border: none;
    border-radius: var(--radius);
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

.newsletter-form button:hover {
    background-color: #ff6b4a;
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(255, 107, 74, 0.3);
}

.newsletter-info {
    font-size: 0.8125rem;
    opacity: 0.8;
    margin-top: 15px;
}

/* Footer - بهینه سازی شده */
.site-footer {
    background-color: #2c3e50;
    color: #ecf0f1;
    padding: 50px 0 0;
    margin-top: 50px;
}

.footer-widgets {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    margin-bottom: 40px;
}

.footer-widget h4 {
    color: white;
    margin-bottom: 20px;
    font-size: 1.125rem;
    font-weight: 600;
    position: relative;
    padding-bottom: 10px;
}

.footer-widget h4:after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 2px;
    background-color: var(--primary-color);
}

.footer-widget ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.footer-widget li {
    margin-bottom: 10px;
}

.footer-widget a {
    color: #bdc3c7;
    transition: var(--transition);
    display: inline-block;
    padding: 4px 0;
    font-size: 0.9375rem;
}

.footer-widget a:hover {
    color: white;
    padding-left: 8px;
    text-decoration: none;
}

.footer-contact li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin-bottom: 15px;
}

.footer-contact i {
    color: var(--primary-color);
    font-size: 1.125rem;
    width: 20px;
    flex-shrink: 0;
    margin-top: 2px;
}

.footer-bottom {
    padding: 25px 0;
    border-top: 1px solid #34495e;
    text-align: center;
    color: #bdc3c7;
    font-size: 0.875rem;
}

.footer-bottom .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.footer-social {
    display: flex;
    gap: 12px;
    margin: 0;
}

.footer-social a {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background-color: #34495e;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    transition: var(--transition);
    font-size: 1rem;
}

.footer-social a:hover {
    background-color: var(--primary-color);
    transform: translateY(-3px);
    text-decoration: none;
}

.footer-links {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
    justify-content: center;
}

.footer-links a {
    color: #bdc3c7;
    transition: var(--transition);
    font-size: 0.875rem;
}

.footer-links a:hover {
    color: white;
    text-decoration: none;
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background-color: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    z-index: 999;
    border: none;
    box-shadow: 0 4px 15px rgba(74, 111, 165, 0.3);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background-color: var(--secondary-color);
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(255, 126, 95, 0.4);
}

/* Loading Spinner */
.loading-spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 1s linear infinite;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background-color: var(--bg-light);
}

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

::-webkit-scrollbar-thumb:hover {
    background-color: var(--secondary-color);
}

/* Responsive Design */
@media (max-width: 1199px) {
    .container {
        max-width: 960px;
        padding: 0 15px;
    }
    
    h1 { font-size: 2.25rem; }
    h2 { font-size: 1.875rem; }
    
    .hero-content h1 {
        font-size: 2.5rem;
    }
}

@media (max-width: 991px) {
    .container {
        max-width: 720px;
    }
    
    .header-main .container {
        grid-template-columns: 1fr auto;
        grid-template-rows: auto auto;
        gap: 15px;
    }
    
    .site-branding {
        grid-column: 1;
        grid-row: 1;
    }
    
    .header-search {
        grid-column: 1 / span 2;
        grid-row: 2;
        max-width: 100%;
    }
    
    .header-actions {
        grid-column: 2;
        grid-row: 1;
    }
    
    .categories-grid {
        grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    }
    
    .products-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    }
    
    .vendors-grid {
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    }
    
    .footer-widgets {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
    }
}

@media (max-width: 767px) {
    body {
        font-size: 15px;
    }
    
    .container {
        padding: 0 12px;
    }
    
    .header-desktop {
        display: none;
    }
    
    .header-mobile {
        display: block;
    }
    
    .hero-section {
        padding: 40px 0;
        margin-bottom: 25px;
    }
    
    .hero-content h1 {
        font-size: 2rem;
        margin-bottom: 1rem;
    }
    
    .hero-content p {
        font-size: 1rem;
        margin-bottom: 1.5rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: stretch;
        gap: 12px;
    }
    
    .hero-buttons .btn {
        width: 100%;
        justify-content: center;
    }
    
    .section-title h2 {
        font-size: 1.75rem;
    }
    
    .section-title p {
        font-size: 1rem;
        padding: 0 10px;
    }
    
    .categories-section,
    .products-section,
    .vendors-section,
    .features-section,
    .newsletter-section {
        padding: 30px 0;
    }
    
    .categories-grid,
    .products-grid,
    .vendors-grid {
        grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
        gap: 20px;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .newsletter-form {
        flex-direction: column;
    }
    
    .newsletter-form input,
    .newsletter-form button {
        width: 100%;
    }
    
    .footer-widgets {
        grid-template-columns: 1fr;
        gap: 25px;
    }
    
    .footer-bottom .container {
        flex-direction: column;
        text-align: center;
        gap: 15px;
    }
    
    .footer-links {
        order: 2;
        gap: 15px;
    }
    
    .footer-social {
        order: 3;
    }
    
    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 45px;
        height: 45px;
    }
}

@media (max-width: 575px) {
    h1 { font-size: 1.75rem; }
    h2 { font-size: 1.5rem; }
    h3 { font-size: 1.375rem; }
    
    .container {
        padding: 0 10px;
    }
    
    .hero-section {
        padding: 30px 0;
        margin-bottom: 20px;
    }
    
    .hero-content h1 {
        font-size: 1.75rem;
    }
    
    .section-title h2 {
        font-size: 1.5rem;
    }
    
    .categories-grid,
    .products-grid,
    .vendors-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .products-filter {
        flex-direction: column;
        align-items: stretch;
        gap: 12px;
    }
    
    .filter-options {
        justify-content: center;
    }
    
    .site-main {
        padding: 15px 0 30px;
    }
    
    .page-content {
        padding: 20px 0;
    }
    
    .mobile-menu {
        width: 280px;
    }
}

@media (max-width: 375px) {
    .hero-content h1 {
        font-size: 1.5rem;
    }
    
    .hero-content p {
        font-size: 0.9375rem;
    }
    
    .btn {
        padding: 10px 24px;
        font-size: 0.9375rem;
    }
    
    .categories-grid,
    .products-grid,
    .vendors-grid {
        gap: 12px;
    }
    
    .category-card,
    .product-card,
    .vendor-card {
        border-radius: var(--radius);
    }
    
    .category-content,
    .product-content,
    .vendor-info {
        padding: 15px;
    }
}

/* Print Styles */
@media print {
    .site-header,
    .header-mobile,
    .hero-section,
    .features-section,
    .newsletter-section,
    .site-footer,
    .back-to-top,
    .product-actions,
    .vendor-actions,
    .btn {
        display: none !important;
    }
    
    body {
        font-size: 12pt;
        line-height: 1.4;
        color: #000;
        background: #fff;
    }
    
    .container {
        max-width: 100%;
        padding: 0;
    }
    
    a {
        color: #000;
        text-decoration: underline;
    }
    
    .site-main {
        padding: 0;
    }
    
    .page-content {
        padding: 0;
    }
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
    :root {
        --primary-color: #0047AB;
        --secondary-color: #FF4500;
        --accent-color: #4B0082;
        --text-color: #000000;
        --border-color: #000000;
    }
    
    .btn-primary,
    .btn-secondary,
    .btn-outline {
        border-width: 2px;
    }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
    
    .hero-section:before,
    .newsletter-section:before,
    .category-image:before,
    .vendor-banner:before {
        display: none;
    }
    
    .category-card:hover,
    .product-card:hover,
    .vendor-card:hover,
    .feature-card:hover {
        transform: none;
    }
    
    .btn:hover {
        transform: none;
    }
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
    :root {
        --primary-color: #5a86c4;
        --secondary-color: #ff9c85;
        --accent-color: #7d6ba6;
        --text-color: #e0e0e0;
        --text-light: #a0a0a0;
        --text-lighter: #808080;
        --border-color: #444444;
        --border-light: #333333;
        --bg-color: #1a1a1a;
        --bg-light: #222222;
        --bg-lighter: #2a2a2a;
        --shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
        --shadow-lg: 0 5px 20px rgba(0, 0, 0, 0.4);
    }
    
    .site-footer {
        background-color: #121212;
    }
    
    .footer-widget a {
        color: #888888;
    }
    
    .footer-social a {
        background-color: #333333;
    }
}