/*
Theme Name: Vatlieuxaydung Premium Theme
Theme URI: https://vatlieuxaydung.info.vn
Description: Theme chuyên nghiệp siêu tốc độ và chuẩn SEO cho vatlieuxaydung.info.vn, thay thế WooCommerce bằng giỏ hàng tùy biến và hệ thống SMTP xoay vòng bảo mật.
Version: 1.0.0
Author: Web3s
Author URI: https://web3s.vn
Text Domain: vatlieuxaydung-theme
*/

:root {
    --primary-color: #f39c12;
    --primary-hover: #e67e22;
    --secondary-color: #2c3e50;
    --accent-color: #e74c3c;
    --bg-light: #f4f6f9;
    --bg-card: #ffffff;
    --text-color: #333333;
    --text-muted: #7f8c8d;
    --border-color: #e2e8f0;
    --radius: 8px;
    --transition: all 0.3s ease;
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 10px rgba(0,0,0,0.08);
}

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

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    color: var(--text-color);
    background-color: var(--bg-light);
    line-height: 1.6;
}

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

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

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header & Megamenu */
header.site-header {
    background-color: #ffffff;
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-sm);
}

.header-top {
    background-color: var(--secondary-color);
    color: #ffffff;
    font-size: 0.85rem;
    padding: 8px 0;
}

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

.google-translate-flags {
    display: flex;
    align-items: center;
    gap: 8px;
}

.google-translate-flags img {
    cursor: pointer;
    width: 24px;
    height: 16px;
    border-radius: 2px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.15);
    transition: var(--transition);
}

.google-translate-flags img:hover {
    transform: scale(1.15);
}

.header-main {
    padding: 15px 0;
}

.header-main-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
}

.site-logo img {
    max-height: 55px;
    display: block;
}

.header-search {
    flex: 1;
    max-width: 450px;
}

.search-form {
    display: flex;
    position: relative;
}

.search-field {
    width: 100%;
    padding: 10px 15px;
    padding-right: 50px;
    border: 1px solid var(--border-color);
    border-radius: 20px;
    outline: none;
    font-size: 0.9rem;
}

.search-submit {
    position: absolute;
    right: 5px;
    top: 5px;
    bottom: 5px;
    background: var(--primary-color);
    color: #ffffff;
    border: none;
    border-radius: 15px;
    padding: 0 15px;
    cursor: pointer;
}

/* Nav Menu Desktop & Mega Menu */
.main-navigation {
    background-color: #ffffff;
    border-top: 1px solid var(--border-color);
}

.menu-primary {
    display: flex;
    list-style: none;
}

.menu-primary li {
    position: relative;
}

.menu-primary a {
    display: block;
    padding: 12px 18px;
    font-weight: 600;
    color: var(--secondary-color);
}

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

.menu-primary .sub-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: #ffffff;
    box-shadow: var(--shadow-md);
    list-style: none;
    min-width: 200px;
    display: none;
    z-index: 999;
    padding: 10px 0;
    border-radius: 4px;
    border: 1px solid var(--border-color);
}

.menu-primary li:hover > .sub-menu {
    display: block;
}

.menu-primary .sub-menu a {
    padding: 8px 20px;
    font-size: 0.9rem;
}

/* Mega menu styles */
@media (min-width: 769px) {
    .main-navigation .mega-menu-item {
        position: static !important;
    }
    .main-navigation .mega-menu-item > .mega-menu-wrapper {
        left: 0;
        right: 0;
        width: 100%;
        max-width: 1200px;
        margin: 0 auto;
        position: absolute;
        top: 100%;
        display: grid !important;
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
        gap: 20px;
        padding: 25px 30px;
        background-color: #ffffff;
        border: 1px solid var(--border-color);
        box-shadow: var(--shadow-md);
        z-index: 999;
        border-radius: var(--radius);
    }
    .main-navigation .mega-menu-wrapper > li > a {
        font-weight: 700 !important;
        color: var(--primary-color) !important;
        border-bottom: 2px solid var(--border-color);
        padding: 0 0 8px 0 !important;
        margin-bottom: 12px;
        display: block;
    }
    .main-navigation .mega-menu-wrapper > li .sub-menu {
        position: static !important;
        display: flex !important;
        flex-direction: column !important;
        box-shadow: none !important;
        border: none !important;
        padding: 0 !important;
        opacity: 1 !important;
    }
}

/* Mobile responsive menu */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--secondary-color);
}

@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: block;
        padding: 12px 18px;
    }
    .menu-primary {
        display: none;
        flex-direction: column;
        width: 100%;
        background: #ffffff;
        border-top: 1px solid var(--border-color);
    }
    .menu-primary.active {
        display: flex;
    }
    .menu-primary .sub-menu {
        position: static;
        display: none;
        box-shadow: none;
        border: none;
        padding-left: 20px;
    }
    .submenu-toggle-arrow {
        display: inline-flex;
        position: absolute;
        right: 15px;
        top: 8px;
        width: 36px;
        height: 36px;
        align-items: center;
        justify-content: center;
        background-color: rgba(0,0,0,0.02);
        border-radius: 4px;
        cursor: pointer;
    }
    .submenu-toggle-arrow.expanded i {
        transform: rotate(180deg);
    }
}

/* Slider Hero */
.hero-slider-container {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 20px;
    margin: 20px 0;
}

@media (max-width: 992px) {
    .hero-slider-container {
        grid-template-columns: 1fr;
    }
}

.main-slider {
    position: relative;
    border-radius: var(--radius);
    overflow: hidden;
    height: 400px;
    box-shadow: var(--shadow-sm);
}

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

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

.slide-content {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.85), transparent);
    padding: 30px;
    color: #ffffff;
}

.slide-title {
    font-size: 2rem;
    color: #ffffff;
    margin-bottom: 10px;
}

.banner-grid-vertical {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.side-banner {
    flex: 1;
    border-radius: var(--radius);
    overflow: hidden;
    position: relative;
    box-shadow: var(--shadow-sm);
}

.side-banner img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 20px;
    border-radius: var(--radius);
    font-weight: 700;
    cursor: pointer;
    border: none;
    transition: var(--transition);
}

.btn-primary {
    background: var(--primary-color);
    color: #ffffff;
}

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

.btn-accent {
    background: var(--accent-color);
    color: #ffffff;
}

.btn-accent:hover {
    background: #c0392b;
    color: #ffffff;
}

/* Cart icon indicator header */
.cart-header-btn {
    position: relative;
    font-size: 1.2rem;
    color: var(--secondary-color);
    display: flex;
    align-items: center;
    padding: 8px 15px;
    border: 1px solid var(--border-color);
    border-radius: 20px;
}

.cart-count-badge {
    position: absolute;
    top: -5px;
    right: -5px;
    background-color: var(--accent-color);
    color: #ffffff;
    font-size: 0.75rem;
    padding: 2px 6px;
    border-radius: 50%;
    font-weight: 700;
}

/* Cart Table Page styles */
.cart-table-wrapper {
    background: #ffffff;
    border-radius: var(--radius);
    box-shadow: var(--shadow-md);
    padding: 30px;
    margin: 30px 0;
}

.cart-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 25px;
}

.cart-table th, .cart-table td {
    padding: 15px;
    border-bottom: 1px solid var(--border-color);
    text-align: left;
}

.cart-table th {
    background: var(--bg-light);
    font-weight: 700;
}

.quantity-input {
    width: 60px;
    padding: 6px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    text-align: center;
}

/* Product grid & Cards */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 20px;
    margin: 25px 0;
}

.product-item-card {
    background: #ffffff;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    overflow: hidden;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

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

.product-item-img {
    height: 180px;
    overflow: hidden;
    background: #f8fafc;
    display: flex;
    align-items: center;
    justify-content: center;
}

.product-item-img img {
    max-height: 100%;
    max-width: 100%;
    object-fit: contain;
    padding: 10px;
}

.product-item-info {
    padding: 15px;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.product-item-title {
    font-size: 0.95rem;
    font-weight: 700;
    line-height: 1.4;
    margin-bottom: 10px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.product-item-price {
    font-size: 1.1rem;
    color: var(--accent-color);
    font-weight: 800;
    margin-bottom: 15px;
    margin-top: auto;
}

/* =============================================
   PREMIUM FOOTER STYLES
   ============================================= */
footer.site-footer {
    background: linear-gradient(160deg, #0f172a 0%, #1e293b 60%, #0f172a 100%);
    color: #cbd5e1;
    font-size: 0.875rem;
    padding: 60px 0 0;
    border-top: 4px solid var(--primary-color);
    position: relative;
}

footer.site-footer::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), #f59e0b, var(--primary-color));
    background-size: 200% 100%;
    animation: shimmer 3s linear infinite;
}

@keyframes shimmer {
    0%   { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

footer.site-footer h3 {
    color: #f1f5f9;
    font-size: 0.8rem;
    font-weight: 800;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    margin-bottom: 22px;
    position: relative;
    padding-bottom: 10px;
}

footer.site-footer h3::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0;
    width: 36px;
    height: 2px;
    background: var(--primary-color);
    border-radius: 2px;
    transition: width 0.3s ease;
}

.footer-column:hover h3::after {
    width: 60px;
}

/* 4-column footer grid */
.grid-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
}

@media (max-width: 992px) {
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 600px) {
    .grid-4 { grid-template-columns: 1fr; gap: 30px; }
}

.footer-column {
    padding: 0;
}

/* Footer links list */
.footer-links-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.footer-links-list li a {
    color: #94a3b8;
    font-size: 0.875rem;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: var(--transition);
    padding: 2px 0;
}

.footer-links-list li a:hover {
    color: var(--primary-color);
    transform: translateX(4px);
}

.footer-links-list li a i {
    color: var(--primary-color);
    font-size: 0.7rem;
    flex-shrink: 0;
}

/* Social Links */
.footer-social-links {
    display: flex;
    gap: 10px;
    margin-top: 0;
    flex-wrap: wrap;
}

.footer-social-links a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.12);
    color: #94a3b8;
    font-size: 0.9rem;
    transition: var(--transition);
}

.footer-social-links a:hover {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: #ffffff;
    transform: translateY(-3px);
    box-shadow: 0 6px 15px rgba(243,156,18,0.35);
}

/* Footer CTA Buttons */
.footer-cta-action-buttons {
    display: flex;
    gap: 10px;
    margin-top: 18px;
    flex-wrap: wrap;
}

.footer-btn-post {
    background: linear-gradient(135deg, #10b981, #059669);
    color: #ffffff;
    font-size: 0.78rem;
    border-radius: 20px;
    padding: 7px 16px;
    font-weight: 700;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
}

.footer-btn-post:hover {
    background: linear-gradient(135deg, #059669, #047857);
    color: #ffffff;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(16,185,129,0.4);
}

.footer-btn-ai {
    background: linear-gradient(135deg, #3b82f6, #1d4ed8);
    color: #ffffff;
    font-size: 0.78rem;
    border-radius: 20px;
    padding: 7px 16px;
    font-weight: 700;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
}

.footer-btn-ai:hover {
    background: linear-gradient(135deg, #2563eb, #1e40af);
    color: #ffffff;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(59,130,246,0.4);
}

/* Footer Bottom Bar */
.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 50px;
    padding: 18px 0;
    border-top: 1px solid rgba(255,255,255,0.06);
    font-size: 0.82rem;
    color: #64748b;
}

.footer-copyright {
    color: #64748b;
}

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