/* ============================================================
   فایل استایل اصلی سایت
   شامل: ریست، متغیرها، کامپوننت‌ها، انیمیشن‌ها
   طراحی: Minimal, Modern, Premium, Luxury
   رنگ‌ها: آبی (#2563EB), سفید, خاکستری روشن, مشکی
   ============================================================ */

/* ============================================================
   ۱. متغیرها و ریست
   ============================================================ */
:root {
    /* رنگ‌های اصلی */
    --primary-color: #2563EB;
    --primary-dark: #1D4ED8;
    --primary-light: #60A5FA;
    --primary-gradient: linear-gradient(135deg, #2563EB 0%, #7C3AED 100%);
    
    --secondary-color: #0F172A;
    --secondary-dark: #020617;
    
    --text-primary: #0F172A;
    --text-secondary: #475569;
    --text-light: #94A3B8;
    --text-white: #FFFFFF;
    
    --bg-primary: #FFFFFF;
    --bg-secondary: #F8FAFC;
    --bg-tertiary: #F1F5F9;
    --bg-dark: #0F172A;
    
    --border-color: #E2E8F0;
    --border-light: #F1F5F9;
    
    --success-color: #22C55E;
    --error-color: #EF4444;
    --warning-color: #F59E0B;
    --info-color: #3B82F6;
    
    /* فونت‌ها */
    --font-family: 'Vazirmatn', sans-serif;
    
    /* سایه‌ها */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 50px rgba(0, 0, 0, 0.15);
    --shadow-2xl: 0 25px 60px rgba(0, 0, 0, 0.2);
    
    /* گلاس‌مورفیسم */
    --glass-bg: rgba(255, 255, 255, 0.7);
    --glass-border: rgba(255, 255, 255, 0.2);
    --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
    
    /* گردی گوشه‌ها */
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-xl: 32px;
    --radius-full: 9999px;
    
    /* فاصله‌ها */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;
    --spacing-3xl: 64px;
    
    /* transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* ریست کامل */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    direction: rtl;
}

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

/* اسکرول‌بار سفارشی */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

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

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

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-dark);
}

/* ============================================================
   ۲. تایپوگرافی
   ============================================================ */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: 700;
    line-height: 1.2;
    color: var(--text-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;
}

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

ul,
ol {
    list-style: none;
}

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

/* ============================================================
   ۳. کانتینر
   ============================================================ */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

@media (max-width: 768px) {
    .container {
        padding: 0 var(--spacing-md);
    }
}

/* ============================================================
   ۴. هدر (Header)
   ============================================================ */
.site-header {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: var(--spacing-sm) 0;
    box-shadow: var(--shadow-sm);
}

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

/* لوگو */
.header-logo a {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-primary);
}

.logo-icon {
    font-size: 2rem;
    background: var(--primary-gradient);
    color: white;
    padding: var(--spacing-xs);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    transition: var(--transition-normal);
}

.header-logo a:hover .logo-icon {
    transform: rotate(-10deg) scale(1.05);
}

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

/* نوار جستجو */
.header-search {
    flex: 1;
    max-width: 500px;
}

.search-wrapper {
    position: relative;
    display: flex;
    align-items: center;
    background: var(--bg-secondary);
    border-radius: var(--radius-full);
    border: 2px solid var(--border-color);
    transition: var(--transition-normal);
    overflow: hidden;
}

.search-wrapper:focus-within {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.1);
}

.search-input {
    flex: 1;
    border: none;
    background: transparent;
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: 0.95rem;
    font-family: var(--font-family);
    color: var(--text-primary);
    outline: none;
}

.search-input::placeholder {
    color: var(--text-light);
}

.search-btn {
    background: var(--primary-gradient);
    border: none;
    color: white;
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--radius-full);
    cursor: pointer;
    font-size: 1rem;
    transition: var(--transition-normal);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.search-btn:hover {
    transform: scale(0.96);
    opacity: 0.9;
}

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

.header-cart {
    position: relative;
}

.cart-link {
    font-size: 1.5rem;
    color: var(--text-primary);
    padding: var(--spacing-sm);
    border-radius: var(--radius-full);
    transition: var(--transition-normal);
    position: relative;
    display: flex;
    align-items: center;
}

.cart-link:hover {
    background: var(--bg-tertiary);
    transform: scale(1.05);
}

.cart-badge {
    position: absolute;
    top: -4px;
    right: -4px;
    background: var(--error-color);
    color: white;
    font-size: 0.7rem;
    font-weight: 700;
    padding: 2px 8px;
    border-radius: var(--radius-full);
    min-width: 20px;
    text-align: center;
    animation: bounceIn 0.5s ease;
}

/* پروفایل دراپ‌داون */
.profile-dropdown {
    position: relative;
}

.profile-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    background: var(--bg-tertiary);
    border: none;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-full);
    cursor: pointer;
    font-family: var(--font-family);
    font-size: 0.9rem;
    color: var(--text-primary);
    transition: var(--transition-normal);
}

.profile-btn:hover {
    background: var(--border-color);
}

.profile-avatar {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-full);
    object-fit: cover;
    border: 2px solid var(--primary-color);
}

.profile-name {
    font-weight: 500;
}

.dropdown-menu {
    position: absolute;
    top: calc(100% + var(--spacing-sm));
    left: 0;
    background: var(--bg-primary);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
    min-width: 220px;
    padding: var(--spacing-sm) 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: var(--transition-normal);
}

.profile-dropdown:hover .dropdown-menu,
.profile-dropdown:focus-within .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-menu a {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-sm) var(--spacing-lg);
    color: var(--text-secondary);
    font-size: 0.9rem;
    transition: var(--transition-fast);
}

.dropdown-menu a:hover {
    background: var(--bg-tertiary);
    color: var(--primary-color);
}

.dropdown-menu a i {
    width: 20px;
    color: var(--text-light);
}

.dropdown-menu hr {
    border: none;
    border-top: 1px solid var(--border-color);
    margin: var(--spacing-sm) 0;
}

.logout-link {
    color: var(--error-color) !important;
}

.logout-link i {
    color: var(--error-color) !important;
}

/* دکمه‌های ورود و ثبت‌نام */
.header-auth {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.btn-login {
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-full);
    font-weight: 500;
    color: var(--text-primary);
    border: 2px solid var(--border-color);
    transition: var(--transition-normal);
}

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

.btn-register {
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-full);
    font-weight: 500;
    background: var(--primary-gradient);
    color: white;
    transition: var(--transition-normal);
}

.btn-register:hover {
    transform: scale(0.96);
    opacity: 0.9;
}

/* منوی موبایل */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.8rem;
    color: var(--text-primary);
    cursor: pointer;
    padding: var(--spacing-sm);
}

/* ============================================================
   ۵. نوار ناوبری (Navbar)
   ============================================================ */
.main-navbar {
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    padding: 0;
    position: sticky;
    top: 72px;
    z-index: 999;
}

.navbar-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.navbar-menu {
    display: flex;
    align-items: center;
    gap: 0;
    height: 52px;
}

.nav-item {
    position: relative;
    height: 100%;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 0 var(--spacing-lg);
    height: 100%;
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.9rem;
    transition: var(--transition-normal);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    right: var(--spacing-lg);
    left: var(--spacing-lg);
    height: 3px;
    background: var(--primary-gradient);
    border-radius: var(--radius-full) var(--radius-full) 0 0;
    transform: scaleX(0);
    transition: var(--transition-normal);
}

.nav-link:hover::after,
.nav-item.active .nav-link::after {
    transform: scaleX(1);
}

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

/* دراپ‌داون نوار */
.dropdown-toggle .fa-chevron-down {
    font-size: 0.7rem;
    margin-right: var(--spacing-xs);
}

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

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

.dropdown .dropdown-menu a {
    display: block;
    padding: var(--spacing-sm) var(--spacing-lg);
    color: var(--text-secondary);
    font-size: 0.9rem;
    transition: var(--transition-fast);
}

.dropdown .dropdown-menu a:hover {
    background: var(--bg-tertiary);
    color: var(--primary-color);
}

/* ============================================================
   ۶. فوتر (Footer)
   ============================================================ */
.site-footer {
    background: var(--bg-dark);
    color: var(--text-white);
    padding: var(--spacing-3xl) 0 var(--spacing-lg);
    margin-top: var(--spacing-3xl);
}

.footer-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: var(--spacing-2xl);
}

.footer-title {
    color: var(--text-white);
    font-size: 1.1rem;
    margin-bottom: var(--spacing-lg);
    position: relative;
    padding-bottom: var(--spacing-sm);
}

.footer-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    right: 0;
    width: 40px;
    height: 3px;
    background: var(--primary-gradient);
    border-radius: var(--radius-full);
}

.footer-description {
    color: var(--text-light);
    font-size: 0.9rem;
    line-height: 1.8;
    margin-bottom: var(--spacing-lg);
}

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

.footer-social a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-light);
    transition: var(--transition-normal);
}

.footer-social a:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-3px);
}

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

.footer-links a {
    color: var(--text-light);
    font-size: 0.9rem;
    transition: var(--transition-normal);
}

.footer-links a:hover {
    color: var(--primary-light);
    padding-right: var(--spacing-sm);
}

.footer-contact li {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    color: var(--text-light);
    font-size: 0.9rem;
}

.footer-contact li i {
    color: var(--primary-color);
    font-size: 1.1rem;
    margin-top: 3px;
    width: 20px;
}

.footer-divider {
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    margin: var(--spacing-2xl) 0 var(--spacing-lg);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-light);
    font-size: 0.85rem;
}

.footer-developer i {
    color: var(--error-color);
}

/* ============================================================
   ۷. کارت‌های محصول (Product Cards)
   ============================================================ */
.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: var(--spacing-lg);
}

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

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

/* ============================================================
   عکس محصولات - نمایش کامل و یکنواخت
   ============================================================ */
.product-image {
    position: relative;
    width: 100%;
    padding-top: 100%; /* نسبت 1:1 */
    background: #f1f5f9;
    overflow: hidden;
}
.product-image img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

.product-badge {
    position: absolute;
    top: var(--spacing-md);
    left: var(--spacing-md);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 700;
    color: white;
    z-index: 2;
}

.product-badge.discount {
    background: var(--error-color);
}

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

.product-badge.featured {
    background: var(--warning-color);
}

.product-wishlist {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: none;
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 1.1rem;
    color: var(--text-light);
    transition: var(--transition-normal);
    z-index: 2;
}

.product-wishlist:hover {
    background: var(--error-color);
    color: white;
    transform: scale(1.1);
}

.product-wishlist.active {
    color: var(--error-color);
}

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

.product-title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    display: -webkit-box;
   -webkit-line-clamp: 2;
line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

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

.product-meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
}

.product-category {
    font-size: 0.8rem;
    color: var(--text-light);
}

.product-rating {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--warning-color);
    font-size: 0.8rem;
}

.product-price {
    display: flex;
    align-items: baseline;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.product-price .current {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text-primary);
}

.product-price .old {
    font-size: 0.9rem;
    color: var(--text-light);
    text-decoration: line-through;
}

.product-actions {
    display: flex;
    gap: var(--spacing-sm);
}

.btn-add-cart {
    flex: 1;
    padding: var(--spacing-sm) var(--spacing-lg);
    background: var(--primary-gradient);
    color: white;
    border: none;
    border-radius: var(--radius-full);
    font-family: var(--font-family);
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-normal);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
}

.btn-add-cart:hover {
    transform: scale(0.96);
    opacity: 0.9;
}

.btn-view {
    padding: var(--spacing-sm) var(--spacing-lg);
    background: var(--bg-tertiary);
    border: none;
    border-radius: var(--radius-full);
    font-family: var(--font-family);
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-normal);
}

.btn-view:hover {
    background: var(--border-color);
}

/* ============================================================
   ۸. هشدارها (Alerts)
   ============================================================ */
.alert {
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    border: 1px solid;
    animation: slideDown 0.5s ease;
}

.alert-success {
    background: #F0FDF4;
    border-color: #86EFAC;
    color: #166534;
}

.alert-error {
    background: #FEF2F2;
    border-color: #FCA5A5;
    color: #991B1B;
}

.alert-warning {
    background: #FFFBEB;
    border-color: #FCD34D;
    color: #92400E;
}

.alert-info {
    background: #EFF6FF;
    border-color: #93C5FD;
    color: #1E40AF;
}

.alert-icon {
    font-size: 1.5rem;
}

.alert-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-light);
    margin-right: auto;
    padding: 0 var(--spacing-sm);
}

.alert-close:hover {
    color: var(--text-primary);
}

/* ============================================================
   ۹. دکمه‌ها و کامپوننت‌های عمومی
   ============================================================ */
.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    background: var(--primary-gradient);
    color: white;
    border: none;
    border-radius: var(--radius-full);
    font-family: var(--font-family);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-normal);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-full);
    font-family: var(--font-family);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-normal);
}

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

/* ============================================================
   ۱۰. انیمیشن‌ها
   ============================================================ */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes bounceIn {
    0% {
        transform: scale(0);
    }
    50% {
        transform: scale(1.3);
    }
    70% {
        transform: scale(0.9);
    }
    100% {
        transform: scale(1);
    }
}

@keyframes pulse {
    0%,
    100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

/* ============================================================
   ۱۱. اسپینر لودینگ
   ============================================================ */
#loading-spinner {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: var(--transition-normal);
}

#loading-spinner.hidden {
    opacity: 0;
    visibility: hidden;
}

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

.spinner {
    width: 60px;
    height: 60px;
    border: 4px solid var(--border-color);
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto var(--spacing-md);
}

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

.spinner-container p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* ============================================================
   ۱۲. استایل‌های گلاس‌مورفیسم
   ============================================================ */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--glass-shadow);
    padding: var(--spacing-xl);
}

/* ============================================================
   ۱۳. دکمه اسکرول به بالا
   ============================================================ */
.scroll-top {
    position: fixed;
    bottom: var(--spacing-xl);
    right: var(--spacing-xl);
    width: 48px;
    height: 48px;
    border-radius: var(--radius-full);
    background: var(--primary-gradient);
    color: white;
    border: none;
    font-size: 1.2rem;
    cursor: pointer;
    box-shadow: var(--shadow-lg);
    transition: var(--transition-normal);
    z-index: 998;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
}

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

.scroll-top:hover {
    transform: translateY(-4px) scale(1.05);
}

/* ============================================================
   ۱۴. مدال (Modal)
   ============================================================ */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9998;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-normal);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-2xl);
    max-width: 560px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    transform: scale(0.9);
    transition: var(--transition-normal);
}

.modal-overlay.active .modal-content {
    transform: scale(1);
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-lg);
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.8rem;
    cursor: pointer;
    color: var(--text-light);
    transition: var(--transition-normal);
}

.modal-close:hover {
    color: var(--text-primary);
    transform: rotate(90deg);
}

/* ============================================================
   ۱۵. حالت تاریک (Dark Mode - آماده برای آینده)
   ============================================================ */
@media (prefers-color-scheme: dark) {
    :root {
        --bg-primary: #0F172A;
        --bg-secondary: #1E293B;
        --bg-tertiary: #334155;
        --text-primary: #F8FAFC;
        --text-secondary: #94A3B8;
        --text-light: #64748B;
        --border-color: #334155;
        --glass-bg: rgba(15, 23, 42, 0.7);
        --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
        --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.4);
        --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.5);
        --shadow-xl: 0 20px 50px rgba(0, 0, 0, 0.6);
    }

    .site-header {
        border-bottom-color: var(--border-color);
    }

    .search-wrapper {
        background: var(--bg-tertiary);
        border-color: var(--border-color);
    }

    .search-input {
        color: var(--text-primary);
    }

    .product-card {
        background: var(--bg-primary);
        border-color: var(--border-color);
    }

    .btn-secondary {
        background: var(--bg-tertiary);
        color: var(--text-primary);
        border-color: var(--border-color);
    }

    .dropdown-menu {
        background: var(--bg-primary);
        border-color: var(--border-color);
    }

    .dropdown-menu a:hover {
        background: var(--bg-tertiary);
    }

    #loading-spinner {
        background: rgba(15, 23, 42, 0.9);
    }

    .modal-content {
        background: var(--bg-primary);
    }

    .glass-card {
        background: var(--glass-bg);
        border-color: var(--glass-border);
    }

    .alert-success {
        background: #064E3B;
        border-color: #065F46;
        color: #86EFAC;
    }

    .alert-error {
        background: #7F1D1D;
        border-color: #991B1B;
        color: #FCA5A5;
    }

    .alert-warning {
        background: #78350F;
        border-color: #92400E;
        color: #FCD34D;
    }

    .alert-info {
        background: #1E3A5F;
        border-color: #1E40AF;
        color: #93C5FD;
    }
}

/* ============================================================
   ۱۶. ریسپانسیو (Responsive - بخشی از آن)
   ============================================================ */
@media (max-width: 1024px) {
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: var(--spacing-xl);
    }
}

@media (max-width: 768px) {
    .header-container {
        padding: 0 var(--spacing-md);
    }

    .header-search {
        display: none;
    }

    .header-actions {
        gap: var(--spacing-md);
    }

    .profile-name {
        display: none;
    }

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

    .main-navbar {
        display: none;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }

    .footer-bottom {
        flex-direction: column;
        gap: var(--spacing-sm);
        text-align: center;
    }

    .product-grid {
        grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
        gap: var(--spacing-md);
    }

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

    .product-price .current {
        font-size: 1.1rem;
    }

    .btn-add-cart {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: 0.8rem;
    }

    .btn-view {
        display: none;
    }

    .header-auth .btn-register {
        display: none;
    }

    .header-auth .btn-login {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: 0.85rem;
    }

    .cart-link {
        font-size: 1.2rem;
    }
}

@media (max-width: 480px) {
    .product-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-sm);
    }

    .product-card {
        border-radius: var(--radius-md);
    }

    .product-body {
        padding: var(--spacing-sm);
    }

    .product-title {
        font-size: 0.85rem;
    }

    .product-price .current {
        font-size: 1rem;
    }

    .product-actions {
        flex-direction: column;
        gap: var(--spacing-xs);
    }

    .btn-add-cart {
        font-size: 0.75rem;
        padding: var(--spacing-xs) var(--spacing-sm);
    }

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

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

/* ============================================================
   گالری محصولات
   ============================================================ */
.gallery-thumbnails {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;
    margin-top: 15px;
}
.thumbnail-item {
    aspect-ratio: 1;
    border-radius: 8px;
    overflow: hidden;
    cursor: pointer;
    border: 2px solid transparent;
    transition: 0.2s;
}
.thumbnail-item:hover {
    border-color: #60a5fa;
}
.thumbnail-item.active {
    border-color: #2563eb;
}
.thumbnail-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* ============================================================
   بنر اسلایدر - بدون شیشه، متن شفاف روی عکس
   ============================================================ */
.banner-slider-section {
    margin: 30px 0;
}

.banner-slider-container {
    position: relative;
    overflow: hidden;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    background: #f1f5f9;
}

.banner-slider-wrapper {
    display: flex;
    transition: transform 0.6s ease;
    will-change: transform;
}

.banner-slide {
    min-width: 100%;
    position: relative;
    aspect-ratio: 21/8;
    display: none;
    background: #f1f5f9;
}

.banner-slide.active {
    display: block;
    animation: bannerFadeIn 0.5s ease;
}

@keyframes bannerFadeIn {
    from { opacity: 0; transform: scale(1.02); }
    to { opacity: 1; transform: scale(1); }
}

.banner-slide-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.banner-slide-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #2563eb, #7c3aed);
    color: white;
    font-size: 3rem;
}

/* ============================================================
   متن‌ها بدون پس‌زمینه - فقط روی عکس
   ============================================================ */
.banner-slide-content {
    position: absolute;
    bottom: 35px;
    right: 35px;
    z-index: 5;
    text-align: right;
}

.banner-slide-content h2 {
    font-size: 1.6rem;
    font-weight: 800;
    margin: 0 0 4px 0;
    line-height: 1.2;
    text-shadow: 0 2px 12px rgba(0, 0, 0, 0.5);
    color: #ffffff;
}

.banner-slide-content p {
    font-size: 1rem;
    opacity: 0.95;
    margin: 0 0 10px 0;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
    color: #fcd34d;
}

.banner-slide-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 7px 22px;
    border-radius: 9999px;
    font-weight: 600;
    font-size: 0.85rem;
    text-decoration: none;
    transition: 0.3s;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
}

.banner-slide-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.3);
}

/* ============================================================
   شمارنده
   ============================================================ */
.banner-slide-counter {
    position: absolute;
    top: 12px;
    right: 16px;
    background: rgba(0,0,0,0.4);
    color: white;
    padding: 2px 12px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 500;
    z-index: 10;
}

/* ============================================================
   دکمه‌های قبلی/بعدی
   ============================================================ */
.banner-slider-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255,255,255,0.85);
    backdrop-filter: blur(4px);
    border: none;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 14px;
    color: #0f172a;
    transition: 0.3s;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.banner-slider-btn:hover {
    background: #ffffff;
    transform: translateY(-50%) scale(1.05);
}

.banner-slider-btn.prev-btn {
    right: 12px;
}

.banner-slider-btn.next-btn {
    left: 12px;
}

/* ============================================================
   دات‌های ناوبری
   ============================================================ */
.banner-slider-dots {
    position: absolute;
    bottom: 12px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 6px;
    z-index: 10;
}

.banner-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    border: 2px solid rgba(255,255,255,0.5);
    background: transparent;
    cursor: pointer;
    transition: 0.3s;
    padding: 0;
}

.banner-dot.active {
    background: #ffffff;
    border-color: #ffffff;
    width: 24px;
    border-radius: 10px;
}

.banner-dot:hover {
    transform: scale(1.2);
}

/* ============================================================
   خط پیشرفت تایمر
   ============================================================ */
.banner-timer-bar {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: rgba(255,255,255,0.15);
    z-index: 10;
}

.banner-timer-progress {
    height: 100%;
    background: linear-gradient(90deg, #2563eb, #7c3aed);
    width: 0%;
    transition: width 0.1s linear;
}

/* ============================================================
   ریسپانسیو
   ============================================================ */
@media (max-width: 1024px) {
    .banner-slide-content h2 {
        font-size: 1.3rem;
    }
    .banner-slide-content p {
        font-size: 0.9rem;
    }
}

@media (max-width: 768px) {
    .banner-slide {
        aspect-ratio: 16/7;
    }
    .banner-slide-content {
        bottom: 25px;
        right: 25px;
    }
    .banner-slide-content h2 {
        font-size: 1.1rem;
    }
    .banner-slide-content p {
        font-size: 0.8rem;
        margin-bottom: 8px;
    }
    .banner-slide-btn {
        padding: 5px 16px;
        font-size: 0.75rem;
    }
    .banner-slider-btn {
        width: 30px;
        height: 30px;
        font-size: 12px;
    }
    .banner-slider-btn.prev-btn {
        right: 8px;
    }
    .banner-slider-btn.next-btn {
        left: 8px;
    }
    .banner-slide-counter {
        font-size: 10px;
        padding: 1px 10px;
        top: 8px;
        right: 10px;
    }
}

@media (max-width: 480px) {
    .banner-slide {
        aspect-ratio: 4/3;
    }
    .banner-slide-content {
        bottom: 18px;
        right: 18px;
        left: 18px;
        text-align: center;
    }
    .banner-slide-content h2 {
        font-size: 0.9rem;
    }
    .banner-slide-content p {
        font-size: 0.7rem;
        margin-bottom: 6px;
    }
    .banner-slide-btn {
        padding: 4px 12px;
        font-size: 0.65rem;
    }
    .banner-slider-btn {
        width: 26px;
        height: 26px;
        font-size: 10px;
    }
    .banner-slider-btn.prev-btn {
        right: 6px;
    }
    .banner-slider-btn.next-btn {
        left: 6px;
    }
    .banner-dot {
        width: 6px;
        height: 6px;
    }
    .banner-dot.active {
        width: 16px;
    }
}