/* ============================================
   LAPTOP ÁNH DƯƠNG - Custom Styles
   Light Theme | Clean & Modern UI
   ============================================ */

/* --- CSS Variables --- */
:root {
    --primary: #2563EB;
    --primary-light: #3B82F6;
    --primary-dark: #1D4ED8;
    --accent: #F59E0B;
    --accent-light: #FBBF24;
    --accent-dark: #D97706;
    --bg-dark: #F8FAFC;
    --bg-card: #FFFFFF;
    --bg-card-hover: #F1F5F9;
    --bg-section: #E2E8F0;
    --bg-glass: rgba(255, 255, 255, 0.8);
    --bg-glass-border: rgba(0, 0, 0, 0.08);
    --text-primary: #0F172A;
    --text-secondary: #334155;
    --text-muted: #64748B;
    --border-color: rgba(0, 0, 0, 0.08);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
    --shadow-glow: 0 0 20px rgba(37, 99, 235, 0.15);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --font-family: 'Be Vietnam Pro', sans-serif;
    --section-padding: 80px 0;
}

/* --- Reset & Base --- */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: var(--font-family);
    font-size: 15px;
    line-height: 1.7;
    color: var(--text-primary);
    background-color: var(--bg-dark);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

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

ul, ol {
    list-style: none;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.3;
    color: var(--text-primary);
}

h1 { font-size: 2.8rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.1rem; }

p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

::selection {
    background: var(--primary);
    color: #fff;
}

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

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

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

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

/* ============================================
   HEADER & NAVIGATION
   ============================================ */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition);
}

.site-header.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow-md);
}

/* Decorative background glows */
#wallpaper {
    position: relative;
}

#wallpaper::before {
    content: '';
    position: fixed;
    top: 0;
    left: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(37, 99, 235, 0.08), transparent 70%);
    border-radius: 50%;
    pointer-events: none;
    z-index: -1;
}

#wallpaper::after {
    content: '';
    position: fixed;
    bottom: 0;
    right: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(245, 158, 11, 0.06), transparent 70%);
    border-radius: 50%;
    pointer-events: none;
    z-index: -1;
}

.header-top {
    background: linear-gradient(90deg, var(--primary), var(--primary-dark));
    padding: 6px 0;
    font-size: 13px;
    transition: transform 0.3s ease, opacity 0.3s ease;
}

.header-top a {
    color: #fff;
    opacity: 0.9;
}

.header-top a:hover {
    opacity: 1;
    color: var(--accent-light);
}

.header-top .top-info {
    display: flex;
    align-items: center;
    gap: 24px;
}

.header-top .top-info i {
    margin-right: 6px;
}

.header-top .top-social {
    display: flex;
    align-items: center;
    gap: 12px;
}

.header-top .top-social a {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.15);
    font-size: 12px;
}

.header-top .top-social a:hover {
    background: var(--accent);
    transform: translateY(-2px);
}

.header-main {
    padding: 12px 0;
}

.header-main .navbar {
    padding: 0;
}

.header-logo img {
    height: 48px;
    width: auto;
    transition: var(--transition);
}

.header-logo:hover img {
    filter: brightness(1.1);
}

.navbar-nav .nav-link {
    color: var(--text-primary) !important;
    font-weight: 500;
    font-size: 15px;
    padding: 10px 16px !important;
    position: relative;
    transition: var(--transition);
}

.navbar-nav .nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 16px;
    right: 16px;
    height: 2px;
    background: var(--primary);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
    color: var(--primary-light) !important;
}

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

.header-hotline {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--accent);
    font-weight: 700;
    font-size: 16px;
}

.header-hotline i {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(245, 158, 11, 0.15);
    border-radius: 50%;
    font-size: 16px;
    animation: pulse-ring 2s infinite;
}

@keyframes pulse-ring {
    0% { box-shadow: 0 0 0 0 rgba(245, 158, 11, 0.4); }
    70% { box-shadow: 0 0 0 10px rgba(245, 158, 11, 0); }
    100% { box-shadow: 0 0 0 0 rgba(245, 158, 11, 0); }
}

.navbar-toggler {
    border: 1px solid var(--border-color) !important;
    padding: 6px 10px;
}

.navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%2815,23,42,0.8%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e") !important;
}

/* --- Search Box --- */
.search-box {
    position: relative;
}

.search-box form {
    position: relative;
    display: flex;
    align-items: center;
    margin: 0;
}

.search-box input {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 50px;
    padding: 8px 40px 8px 16px;
    color: var(--text-primary);
    font-size: 14px;
    width: 220px;
    transition: var(--transition);
    font-family: var(--font-family);
}

.search-box input:focus {
    outline: none;
    border-color: var(--primary);
    background: var(--bg-card-hover);
    width: 280px;
    box-shadow: var(--shadow-glow);
}

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

.search-box button {
    position: absolute;
    right: 4px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--text-muted);
    padding: 6px 10px;
    cursor: pointer;
    transition: var(--transition);
}

.search-box button:hover {
    color: var(--primary-light);
}

/* --- Dropdown Brands Menu --- */
.dropdown-brands {
    min-width: 220px;
    padding: 8px 0;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    background: #fff;
    margin-top: 8px !important;
    animation: dropdownFade 0.2s ease;
}

@keyframes dropdownFade {
    from { opacity: 0; transform: translateY(-8px); }
    to   { opacity: 1; transform: translateY(0); }
}

.dropdown-brands .dropdown-item {
    padding: 10px 18px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 10px;
    transition: var(--transition);
    font-family: var(--font-family);
}

.dropdown-brands .dropdown-item i {
    width: 20px;
    text-align: center;
    color: var(--primary);
    font-size: 15px;
}

.dropdown-brands .dropdown-item:hover,
.dropdown-brands .dropdown-item:focus {
    background: rgba(37, 99, 235, 0.06);
    color: var(--primary-light);
}

.dropdown-brands .dropdown-item:hover i,
.dropdown-brands .dropdown-item:focus i {
    color: var(--primary);
    transform: translateX(2px);
}

.dropdown-brands .dropdown-item i {
    transition: transform 0.2s ease;
}

.dropdown-brands .dropdown-all {
    font-weight: 600;
    color: var(--primary);
}

.dropdown-brands .dropdown-all:hover {
    background: rgba(37, 99, 235, 0.1);
    color: var(--primary-dark);
}

.dropdown-brands .dropdown-divider {
    margin: 4px 0;
    border-color: var(--border-color);
}

/* Dropdown toggle arrow override - remove Bootstrap's default ::after for nav */
.navbar-nav .nav-item.dropdown > .nav-link.dropdown-toggle::after {
    content: none;
}

.navbar-nav .nav-item.dropdown > .nav-link.dropdown-toggle::before {
    display: none;
}

/* Custom caret for dropdown */
.navbar-nav .nav-item.dropdown > .nav-link {
    display: flex;
    align-items: center;
    gap: 4px;
}

.navbar-nav .nav-item.dropdown > .nav-link .bs-caret,
.navbar-nav .nav-item.dropdown > .nav-link .dropdown-arrow {
    font-size: 10px;
    transition: transform 0.3s ease;
    margin-left: 2px;
}

/* Mobile responsive */
@media (max-width: 991px) {
    .dropdown-brands {
        box-shadow: none;
        border: none;
        border-radius: 0;
        background: rgba(37, 99, 235, 0.04);
        margin-top: 0 !important;
        padding: 0 0 8px 16px;
        animation: none;
    }

    .dropdown-brands .dropdown-item {
        padding: 8px 12px;
    }
}


/* ============================================
   HERO SECTION
   ============================================ */
.hero-section {
    position: relative;
    min-height: 600px;
    display: flex;
    align-items: center;
    padding: 140px 0 80px;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(248, 250, 252, 0.90), rgba(226, 232, 240, 0.75));
    z-index: 1;
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

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

.hero-content {
    position: relative;
    z-index: 2;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(37, 99, 235, 0.15);
    border: 1px solid rgba(37, 99, 235, 0.3);
    border-radius: 50px;
    padding: 6px 16px;
    font-size: 13px;
    color: var(--primary-light);
    font-weight: 500;
    margin-bottom: 20px;
}

.hero-badge i {
    color: var(--accent);
}

.hero-title {
    font-size: 3.2rem;
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 20px;
}

.hero-title .highlight {
    background: linear-gradient(135deg, var(--primary-light), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 17px;
    color: var(--text-secondary);
    max-width: 520px;
    margin-bottom: 32px;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.hero-stats {
    position: relative;
    z-index: 2;
    display: flex;
    gap: 32px;
    margin-top: 48px;
}

.hero-stat {
    text-align: center;
}

.hero-stat .number {
    font-size: 2rem;
    font-weight: 800;
    color: var(--accent);
    display: block;
}

.hero-stat .label {
    font-size: 13px;
    color: var(--text-muted);
}

.hero-image {
    position: relative;
    z-index: 2;
}

.hero-image img {
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

/* ============================================
   BUTTONS
   ============================================ */
.btn-primary-custom {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #fff;
    border: none;
    padding: 12px 28px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 15px;
    font-family: var(--font-family);
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 8px;
    position: relative;
    overflow: hidden;
}

.btn-primary-custom::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.btn-primary-custom:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(37, 99, 235, 0.4);
    color: #fff;
}

.btn-primary-custom:hover::before {
    left: 100%;
}

.btn-accent-custom {
    background: linear-gradient(135deg, var(--accent), var(--accent-dark));
    color: #111;
    border: none;
    padding: 12px 28px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 15px;
    font-family: var(--font-family);
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.btn-accent-custom:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(245, 158, 11, 0.4);
    color: #111;
}

.btn-outline-custom {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    padding: 12px 28px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 15px;
    font-family: var(--font-family);
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.btn-outline-custom:hover {
    border-color: var(--primary);
    color: var(--primary-light);
    background: rgba(37, 99, 235, 0.1);
    transform: translateY(-2px);
}

/* ============================================
   SECTION STYLES
   ============================================ */
.section-padding {
    padding: var(--section-padding);
}

.section-header {
    text-align: center;
    margin-bottom: 48px;
}

.section-header .section-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(37, 99, 235, 0.1);
    border: 1px solid rgba(37, 99, 235, 0.2);
    border-radius: 50px;
    padding: 6px 16px;
    font-size: 13px;
    color: var(--primary-light);
    font-weight: 500;
    margin-bottom: 12px;
}

.section-header h2 {
    font-size: 2.2rem;
    margin-bottom: 12px;
}

.section-header h2 .highlight {
    background: linear-gradient(135deg, var(--primary-light), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-header p {
    font-size: 16px;
    max-width: 600px;
    margin: 0 auto;
}

.bg-section {
    background: var(--bg-section);
}

/* ============================================
   BRAND LOGOS
   ============================================ */
.brand-section {
    padding: 48px 0;
    border-bottom: 1px solid var(--border-color);
}

.brand-item {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 16px 24px;
    background: var(--bg-glass);
    border: 1px solid var(--bg-glass-border);
    border-radius: var(--radius-md);
    backdrop-filter: blur(10px);
    transition: var(--transition);
    cursor: pointer;
    min-height: 70px;
}

.brand-item:hover {
    border-color: var(--primary);
    transform: translateY(-4px);
    box-shadow: var(--shadow-glow);
}

.brand-item span {
    font-weight: 700;
    font-size: 18px;
    color: var(--text-secondary);
    transition: var(--transition);
}

.brand-item:hover span {
    color: var(--primary-light);
}

/* ============================================
   PRODUCT CARDS
   ============================================ */
.product-card {
    background: var(--bg-glass);
    border: 1px solid var(--bg-glass-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    backdrop-filter: blur(10px);
    transition: var(--transition);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.product-card:hover {
    transform: translateY(-8px);
    border-color: rgba(37, 99, 235, 0.3);
    box-shadow: 0 20px 40px rgba(37, 99, 235, 0.12), var(--shadow-glow);
}

.product-card .product-image {
    position: relative;
    overflow: hidden;
    aspect-ratio: 4/3;
    background: var(--bg-section);
}

.product-card .product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.product-card .product-badges {
    position: absolute;
    top: 12px;
    left: 12px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.product-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 10px;
    border-radius: 50px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

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

.product-badge.badge-hot {
    background: #EF4444;
    color: #fff;
}

.product-badge.badge-sale {
    background: var(--accent);
    color: #111;
}

.product-card .product-info {
    padding: 20px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.product-card .product-brand {
    font-size: 12px;
    color: var(--primary-light);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 6px;
}

.product-card .product-name {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 10px;
    line-height: 1.4;
    transition: var(--transition);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.product-card .product-name:hover {
    color: var(--primary-light);
}

.product-card .product-specs {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 16px;
}

.product-card .spec-tag {
    font-size: 12px;
    color: var(--text-muted);
    background: var(--bg-section);
    padding: 3px 10px;
    border-radius: 50px;
    border: 1px solid var(--border-color);
}

.product-card .product-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: auto;
    padding-top: 16px;
    border-top: 1px solid var(--border-color);
}

.product-card .product-price {
    font-size: 20px;
    font-weight: 700;
    color: var(--accent);
}

.product-card .product-price .old-price {
    font-size: 13px;
    color: var(--text-muted);
    text-decoration: line-through;
    font-weight: 400;
    display: block;
}

.product-card .btn-contact {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(37, 99, 235, 0.1);
    border: 1px solid rgba(37, 99, 235, 0.3);
    color: var(--primary-light);
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    font-family: var(--font-family);
}

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

/* ============================================
   WHY CHOOSE US
   ============================================ */
.feature-card {
    background: var(--bg-glass);
    border: 1px solid var(--bg-glass-border);
    border-radius: var(--radius-lg);
    padding: 32px 24px;
    text-align: center;
    backdrop-filter: blur(10px);
    transition: var(--transition);
    height: 100%;
}

.feature-card:hover {
    transform: translateY(-8px);
    border-color: rgba(37, 99, 235, 0.3);
    box-shadow: var(--shadow-glow);
}

.feature-card .feature-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.15), rgba(245, 158, 11, 0.1));
    border-radius: var(--radius-md);
    margin: 0 auto 20px;
    font-size: 24px;
    color: var(--primary-light);
    transition: var(--transition);
}

.feature-card:hover .feature-icon {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #fff;
    transform: scale(1.1);
}

.feature-card h4 {
    font-size: 18px;
    margin-bottom: 10px;
}

.feature-card p {
    font-size: 14px;
    margin-bottom: 0;
}

/* ============================================
   BLOG CARDS
   ============================================ */
.blog-card {
    background: var(--bg-glass);
    border: 1px solid var(--bg-glass-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    backdrop-filter: blur(10px);
    transition: var(--transition);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.blog-card:hover {
    transform: translateY(-8px);
    border-color: rgba(37, 99, 235, 0.3);
    box-shadow: 0 20px 40px rgba(37, 99, 235, 0.12);
}

.blog-card .blog-image {
    position: relative;
    overflow: hidden;
    aspect-ratio: 16/10;
}

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

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

.blog-card .blog-category {
    position: absolute;
    top: 12px;
    left: 12px;
    background: var(--primary);
    color: #fff;
    padding: 4px 12px;
    border-radius: 50px;
    font-size: 12px;
    font-weight: 600;
}

.blog-card .blog-body {
    padding: 20px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.blog-card .blog-meta {
    display: flex;
    align-items: center;
    gap: 16px;
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 10px;
}

.blog-card .blog-meta i {
    margin-right: 4px;
    color: var(--primary-light);
}

.blog-card .blog-title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 10px;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

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

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

.blog-card .blog-excerpt {
    font-size: 14px;
    color: var(--text-secondary);
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin-bottom: 16px;
    flex: 1;
}

.blog-card .blog-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--primary-light);
    font-size: 14px;
    font-weight: 600;
    margin-top: auto;
}

.blog-card .blog-link i {
    transition: transform 0.3s ease;
}

.blog-card .blog-link:hover i {
    transform: translateX(4px);
}

/* ============================================
   CTA SECTION
   ============================================ */
.cta-section {
    padding: var(--section-padding);
    background: linear-gradient(135deg, #2563EB, #1D4ED8);
    position: relative;
    overflow: hidden;
}

.cta-section .cta-content h2,
.cta-section .cta-content p {
    color: #fff;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.08), transparent 70%);
    border-radius: 50%;
}

.cta-section::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(245, 158, 11, 0.15), transparent 70%);
    border-radius: 50%;
}

.cta-content {
    position: relative;
    z-index: 2;
    text-align: center;
}

.cta-content h2 {
    font-size: 2.2rem;
    margin-bottom: 16px;
}

.cta-content p {
    font-size: 17px;
    max-width: 600px;
    margin: 0 auto 32px;
}

.cta-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

/* ============================================
   FOOTER
   ============================================ */
.site-footer {
    background: var(--bg-section);
    border-top: 1px solid var(--border-color);
    padding-top: 60px;
}

.footer-main {
    padding-bottom: 40px;
}

.footer-logo img {
    height: 48px;
    margin-bottom: 16px;
}

.footer-about p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.8;
}

.footer-contact-info {
    margin-top: 16px;
}

.footer-contact-info li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin-bottom: 10px;
    font-size: 14px;
    color: var(--text-secondary);
}

.footer-contact-info li i {
    color: var(--primary-light);
    margin-top: 4px;
    width: 16px;
    text-align: center;
}

.footer-title {
    font-size: 17px;
    font-weight: 600;
    margin-bottom: 20px;
    color: var(--text-primary);
    position: relative;
    padding-bottom: 12px;
}

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

.footer-links li {
    margin-bottom: 8px;
}

.footer-links li a {
    color: var(--text-secondary);
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: var(--transition);
}

.footer-links li a::before {
    content: '\f105';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    font-size: 11px;
    color: var(--primary-light);
    opacity: 0;
    transform: translateX(-4px);
    transition: var(--transition);
}

.footer-links li a:hover {
    color: var(--primary-light);
    padding-left: 4px;
}

.footer-links li a:hover::before {
    opacity: 1;
    transform: translateX(0);
}

.footer-blog-item {
    display: flex;
    gap: 12px;
    margin-bottom: 16px;
}

.footer-blog-item img {
    width: 70px;
    height: 52px;
    border-radius: var(--radius-sm);
    object-fit: cover;
    flex-shrink: 0;
}

.footer-blog-item .info h6 {
    font-size: 13px;
    font-weight: 500;
    line-height: 1.4;
    margin-bottom: 4px;
}

.footer-blog-item .info h6 a {
    color: var(--text-primary);
}

.footer-blog-item .info h6 a:hover {
    color: var(--primary-light);
}

.footer-blog-item .info span {
    font-size: 12px;
    color: var(--text-muted);
}

.footer-bottom {
    border-top: 1px solid var(--border-color);
    padding: 20px 0;
    text-align: center;
    font-size: 14px;
    color: var(--text-muted);
}

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

/* ============================================
   FLOATING BUTTONS
   ============================================ */
.floating-buttons {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 999;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.float-btn {
    width: 52px;
    height: 52px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 22px;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: var(--shadow-md);
    border: none;
    text-decoration: none;
}

.float-btn:hover {
    transform: scale(1.1);
    color: #fff;
}

.float-btn.zalo-btn {
    background: #0068FF;
}

.float-btn.zalo-btn:hover {
    box-shadow: 0 8px 25px rgba(0, 104, 255, 0.5);
}

.float-btn.fb-btn {
    background: #1877F2;
}

.float-btn.fb-btn:hover {
    box-shadow: 0 8px 25px rgba(24, 119, 242, 0.5);
}

.float-btn.phone-btn {
    background: #22C55E;
    animation: pulse-ring-green 2s infinite;
}

.float-btn.phone-btn:hover {
    box-shadow: 0 8px 25px rgba(34, 197, 94, 0.5);
}

@keyframes pulse-ring-green {
    0% { box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.4); }
    70% { box-shadow: 0 0 0 12px rgba(34, 197, 94, 0); }
    100% { box-shadow: 0 0 0 0 rgba(34, 197, 94, 0); }
}

/* --- Back to top --- */
.back-to-top {
    position: fixed;
    bottom: 24px;
    left: 24px;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--primary);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    cursor: pointer;
    border: none;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: var(--transition);
    box-shadow: var(--shadow-md);
    z-index: 999;
}

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

.back-to-top:hover {
    background: var(--primary-dark);
    transform: translateY(-4px);
}

/* ============================================
   BREADCRUMB
   ============================================ */
.breadcrumb-section {
    padding: 120px 0 32px;
    background: linear-gradient(135deg, var(--bg-section), var(--bg-dark));
    border-bottom: 1px solid var(--border-color);
}

.breadcrumb-section h1 {
    font-size: 2.2rem;
    margin-bottom: 12px;
}

.breadcrumb-nav {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    flex-wrap: wrap;
}

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

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

.breadcrumb-nav .separator {
    color: var(--text-muted);
    font-size: 12px;
}

.breadcrumb-nav .current {
    color: var(--primary-light);
}

/* ============================================
   PRODUCT PAGE - FILTER & GRID
   ============================================ */
.filter-sidebar {
    background: var(--bg-glass);
    border: 1px solid var(--bg-glass-border);
    border-radius: var(--radius-lg);
    padding: 24px;
    backdrop-filter: blur(10px);
    position: sticky;
    top: 100px;
}

.filter-group {
    margin-bottom: 24px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border-color);
}

.filter-group:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.filter-group h5 {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 14px;
    color: var(--text-primary);
}

.filter-group label {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 6px 0;
    transition: var(--transition);
}

.filter-group label:hover {
    color: var(--primary-light);
}

.filter-group input[type="checkbox"] {
    appearance: none;
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    border: 2px solid var(--border-color);
    border-radius: 4px;
    background: transparent;
    cursor: pointer;
    position: relative;
    transition: var(--transition);
    flex-shrink: 0;
}

.filter-group input[type="checkbox"]:checked {
    background: var(--primary);
    border-color: var(--primary);
}

.filter-group input[type="checkbox"]:checked::after {
    content: '\f00c';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    font-size: 10px;
    color: #fff;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.sort-options {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 24px;
    flex-wrap: wrap;
}

.sort-options .sort-label {
    font-size: 14px;
    color: var(--text-muted);
    font-weight: 500;
}

.sort-options select {
    background: var(--bg-glass);
    border: 1px solid var(--bg-glass-border);
    color: var(--text-primary);
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-family: var(--font-family);
    cursor: pointer;
    transition: var(--transition);
}

.sort-options select:focus {
    outline: none;
    border-color: var(--primary);
}

.product-count {
    font-size: 14px;
    color: var(--text-muted);
    margin-left: auto;
}

/* ============================================
   PRODUCT DETAIL
   ============================================ */
.product-detail-section {
    padding: 40px 0 80px;
}

.product-gallery {
    position: sticky;
    top: 100px;
}

.gallery-main {
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--bg-card);
    border: 1px solid var(--bg-glass-border);
    margin-bottom: 12px;
}

.gallery-main img {
    width: 100%;
    aspect-ratio: 4/3;
    object-fit: cover;
    cursor: zoom-in;
}

.gallery-thumbs {
    display: flex;
    gap: 8px;
}

.gallery-thumb {
    width: 80px;
    height: 60px;
    border-radius: var(--radius-sm);
    overflow: hidden;
    border: 2px solid transparent;
    cursor: pointer;
    transition: var(--transition);
    opacity: 0.6;
}

.gallery-thumb.active,
.gallery-thumb:hover {
    border-color: var(--primary);
    opacity: 1;
}

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

.product-detail-info h1 {
    font-size: 1.8rem;
    margin-bottom: 12px;
}

.product-detail-info .product-meta {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 20px;
    font-size: 14px;
    color: var(--text-muted);
}

.product-detail-info .product-meta span {
    display: flex;
    align-items: center;
    gap: 6px;
}

.product-detail-info .detail-price {
    font-size: 2rem;
    font-weight: 800;
    color: var(--accent);
    margin-bottom: 4px;
}

.product-detail-info .detail-old-price {
    font-size: 16px;
    color: var(--text-muted);
    text-decoration: line-through;
    margin-bottom: 24px;
}

.product-detail-info .detail-description {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 24px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border-color);
}

.spec-table {
    width: 100%;
    margin-bottom: 24px;
}

.spec-table tr {
    border-bottom: 1px solid var(--border-color);
}

.spec-table td {
    padding: 12px 0;
    font-size: 14px;
}

.spec-table td:first-child {
    color: var(--text-muted);
    width: 160px;
    font-weight: 500;
}

.spec-table td:last-child {
    color: var(--text-primary);
    font-weight: 500;
}

.contact-options {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    margin-top: 24px;
}

.contact-option {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 14px;
    transition: var(--transition);
    text-decoration: none;
    cursor: pointer;
    border: none;
    font-family: var(--font-family);
}

.contact-option.zalo {
    background: #0068FF;
    color: #fff;
}

.contact-option.facebook {
    background: #1877F2;
    color: #fff;
}

.contact-option.phone {
    background: #22C55E;
    color: #fff;
}

.contact-option:hover {
    transform: translateY(-2px);
    color: #fff;
    box-shadow: var(--shadow-md);
}

/* ============================================
   VIDEO SECTION IN PRODUCT DETAIL
   ============================================ */
.video-section {
    margin: 32px 0;
}

.video-wrapper {
    position: relative;
    padding-bottom: 56.25%;
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--bg-card);
    border: 1px solid var(--bg-glass-border);
}

.video-wrapper iframe {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    border: none;
}

/* ============================================
   BLOG PAGE
   ============================================ */
.blog-featured {
    background: var(--bg-glass);
    border: 1px solid var(--bg-glass-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    backdrop-filter: blur(10px);
    margin-bottom: 48px;
    transition: var(--transition);
}

.blog-featured:hover {
    border-color: rgba(37, 99, 235, 0.3);
    box-shadow: var(--shadow-lg);
}

.blog-featured img {
    width: 100%;
    height: 350px;
    object-fit: cover;
}

.blog-featured .featured-body {
    padding: 32px;
}

.blog-featured .featured-body h2 {
    font-size: 1.8rem;
    margin-bottom: 12px;
}

.blog-featured .featured-body h2 a {
    color: var(--text-primary);
}

.blog-featured .featured-body h2 a:hover {
    color: var(--primary-light);
}

.blog-sidebar {
    position: sticky;
    top: 100px;
}

.sidebar-widget {
    background: var(--bg-glass);
    border: 1px solid var(--bg-glass-border);
    border-radius: var(--radius-lg);
    padding: 24px;
    backdrop-filter: blur(10px);
    margin-bottom: 24px;
}

.sidebar-widget h5 {
    font-size: 17px;
    font-weight: 600;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-color);
}

.sidebar-post {
    display: flex;
    gap: 12px;
    margin-bottom: 14px;
    padding-bottom: 14px;
    border-bottom: 1px solid var(--border-color);
}

.sidebar-post:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.sidebar-post img {
    width: 70px;
    height: 52px;
    border-radius: var(--radius-sm);
    object-fit: cover;
    flex-shrink: 0;
}

.sidebar-post h6 {
    font-size: 13px;
    font-weight: 500;
    line-height: 1.4;
    margin-bottom: 4px;
}

.sidebar-post h6 a {
    color: var(--text-primary);
}

.sidebar-post h6 a:hover {
    color: var(--primary-light);
}

.sidebar-post span {
    font-size: 12px;
    color: var(--text-muted);
}

.sidebar-categories li {
    margin-bottom: 6px;
}

.sidebar-categories li a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    color: var(--text-secondary);
    font-size: 14px;
    padding: 8px 0;
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition);
}

.sidebar-categories li a:hover {
    color: var(--primary-light);
    padding-left: 4px;
}

.sidebar-categories li a span {
    font-size: 12px;
    color: var(--text-muted);
}

.sidebar-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.sidebar-tags a {
    padding: 4px 14px;
    background: var(--bg-section);
    border: 1px solid var(--border-color);
    border-radius: 50px;
    font-size: 13px;
    color: var(--text-secondary);
    transition: var(--transition);
}

.sidebar-tags a:hover {
    background: rgba(37, 99, 235, 0.1);
    border-color: var(--primary);
    color: var(--primary-light);
}

/* ============================================
   BLOG DETAIL
   ============================================ */
.blog-detail-content {
    background: var(--bg-glass);
    border: 1px solid var(--bg-glass-border);
    border-radius: var(--radius-lg);
    padding: 40px;
    backdrop-filter: blur(10px);
}

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

.blog-detail-content .featured-image img {
    width: 100%;
    height: 400px;
    object-fit: cover;
}

.blog-detail-content .article-meta {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 24px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
    flex-wrap: wrap;
}

.blog-detail-content .article-meta span {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    color: var(--text-muted);
}

.blog-detail-content .article-meta span i {
    color: var(--primary-light);
}

.blog-detail-content .article-body h2 {
    font-size: 1.5rem;
    margin: 32px 0 16px;
    padding-top: 16px;
}

.blog-detail-content .article-body h3 {
    font-size: 1.25rem;
    margin: 24px 0 12px;
}

.blog-detail-content .article-body p {
    font-size: 15px;
    line-height: 1.9;
    margin-bottom: 16px;
}

.blog-detail-content .article-body ul,
.blog-detail-content .article-body ol {
    margin-bottom: 16px;
    padding-left: 24px;
}

.blog-detail-content .article-body li {
    font-size: 15px;
    color: var(--text-secondary);
    margin-bottom: 8px;
    line-height: 1.7;
    list-style: disc;
}

.blog-detail-content .article-body ol li {
    list-style: decimal;
}

.blog-detail-content .article-body blockquote {
    border-left: 3px solid var(--primary);
    padding: 16px 20px;
    margin: 20px 0;
    background: rgba(37, 99, 235, 0.05);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    font-style: italic;
}

.blog-detail-content .article-body img {
    border-radius: var(--radius-md);
    margin: 20px 0;
}

/* Table of Contents */
.toc-box {
    background: rgba(37, 99, 235, 0.05);
    border: 1px solid rgba(37, 99, 235, 0.15);
    border-radius: var(--radius-md);
    padding: 20px 24px;
    margin-bottom: 32px;
}

.toc-box h4 {
    font-size: 16px;
    margin-bottom: 12px;
    color: var(--primary-light);
}

.toc-box ol {
    padding-left: 20px;
}

.toc-box li {
    margin-bottom: 6px;
    list-style: decimal;
}

.toc-box li a {
    color: var(--text-secondary);
    font-size: 14px;
}

.toc-box li a:hover {
    color: var(--primary-light);
}

/* Share & Author */
.article-share {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 24px 0;
    margin-top: 32px;
    border-top: 1px solid var(--border-color);
}

.article-share span {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
}

.share-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    transition: var(--transition);
    text-decoration: none;
    font-size: 16px;
}

.share-btn:hover {
    color: #fff;
    border-color: transparent;
}

.share-btn.fb:hover { background: #1877F2; }
.share-btn.zalo:hover { background: #0068FF; }
.share-btn.twitter:hover { background: #1DA1F2; }

.author-box {
    display: flex;
    gap: 20px;
    background: var(--bg-section);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 24px;
    margin-top: 32px;
}

.author-box .author-avatar {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: 700;
    color: #fff;
    flex-shrink: 0;
}

.author-box h5 {
    font-size: 16px;
    margin-bottom: 4px;
}

.author-box p {
    font-size: 14px;
    margin-bottom: 0;
}

/* ============================================
   ABOUT PAGE
   ============================================ */
.about-story {
    padding: var(--section-padding);
}

.about-story .story-content h2 {
    font-size: 2rem;
    margin-bottom: 20px;
}

.about-story .story-content p {
    font-size: 15px;
    line-height: 1.9;
}

.about-image {
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--bg-glass-border);
}

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

.process-section {
    padding: var(--section-padding);
    background: var(--bg-section);
}

.process-step {
    text-align: center;
    padding: 24px;
    position: relative;
}

.process-step .step-number {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    font-weight: 700;
    color: #fff;
    margin: 0 auto 16px;
}

.process-step h4 {
    font-size: 16px;
    margin-bottom: 8px;
}

.process-step p {
    font-size: 14px;
    margin-bottom: 0;
}

.stats-section {
    padding: var(--section-padding);
}

.stat-card {
    text-align: center;
    background: var(--bg-glass);
    border: 1px solid var(--bg-glass-border);
    border-radius: var(--radius-lg);
    padding: 32px 20px;
    backdrop-filter: blur(10px);
    transition: var(--transition);
}

.stat-card:hover {
    transform: translateY(-8px);
    border-color: rgba(37, 99, 235, 0.3);
    box-shadow: var(--shadow-glow);
}

.stat-card .stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary-light), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 8px;
}

.stat-card p {
    font-size: 14px;
    margin-bottom: 0;
}

/* ============================================
   CONTACT PAGE
   ============================================ */
.contact-section {
    padding: 40px 0 80px;
}

.contact-info-card {
    background: var(--bg-glass);
    border: 1px solid var(--bg-glass-border);
    border-radius: var(--radius-lg);
    padding: 32px;
    backdrop-filter: blur(10px);
    height: 100%;
}

.contact-info-card h3 {
    font-size: 1.5rem;
    margin-bottom: 24px;
}

.contact-info-item {
    display: flex;
    gap: 16px;
    margin-bottom: 20px;
}

.contact-info-item .icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    background: rgba(37, 99, 235, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-light);
    font-size: 18px;
    flex-shrink: 0;
}

.contact-info-item h5 {
    font-size: 15px;
    margin-bottom: 4px;
}

.contact-info-item p,
.contact-info-item a {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 0;
}

.contact-info-item a:hover {
    color: var(--primary-light);
}

.contact-social {
    display: flex;
    gap: 12px;
    margin-top: 24px;
}

.contact-social a {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-section);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-size: 18px;
    transition: var(--transition);
}

.contact-social a:hover {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
    transform: translateY(-4px);
}

.contact-form-card {
    background: var(--bg-glass);
    border: 1px solid var(--bg-glass-border);
    border-radius: var(--radius-lg);
    padding: 32px;
    backdrop-filter: blur(10px);
}

.contact-form-card h3 {
    font-size: 1.5rem;
    margin-bottom: 24px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 12px 16px;
    color: var(--text-primary);
    font-size: 14px;
    font-family: var(--font-family);
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: var(--shadow-glow);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-muted);
}

.form-group textarea {
    min-height: 120px;
    resize: vertical;
}

.map-wrapper {
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--bg-glass-border);
    margin-top: 32px;
}

.map-wrapper iframe {
    width: 100%;
    height: 350px;
    border: none;
    filter: none;
}

/* ============================================
   PAGINATION
   ============================================ */
.pagination-custom {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-top: 40px;
}

.pagination-custom a,
.pagination-custom span {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 500;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    transition: var(--transition);
}

.pagination-custom a:hover {
    border-color: var(--primary);
    color: var(--primary-light);
    background: rgba(37, 99, 235, 0.1);
}

.pagination-custom .active {
    background: var(--primary);
    border-color: var(--primary);
    color: #fff;
}

/* ============================================
   SCROLL ANIMATIONS
   ============================================ */
.fade-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-up.visible {
    opacity: 1;
    transform: translateY(0);
}

.fade-in {
    opacity: 0;
    transition: opacity 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
}

/* --- Stagger children --- */
.stagger-children .fade-up:nth-child(1) { transition-delay: 0.05s; }
.stagger-children .fade-up:nth-child(2) { transition-delay: 0.1s; }
.stagger-children .fade-up:nth-child(3) { transition-delay: 0.15s; }
.stagger-children .fade-up:nth-child(4) { transition-delay: 0.2s; }
.stagger-children .fade-up:nth-child(5) { transition-delay: 0.25s; }
.stagger-children .fade-up:nth-child(6) { transition-delay: 0.3s; }
.stagger-children .fade-up:nth-child(7) { transition-delay: 0.35s; }
.stagger-children .fade-up:nth-child(8) { transition-delay: 0.4s; }

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1199px) {
    h1 { font-size: 2.2rem; }
    .hero-title { font-size: 2.6rem; }
}

@media (max-width: 991px) {
    :root {
        --section-padding: 60px 0;
    }

    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    .hero-title { font-size: 2.2rem; }
    .hero-section { min-height: auto; padding: 120px 0 60px; }
    .hero-stats { gap: 20px; }

    .header-top { display: none; }

    .navbar-collapse {
        background: var(--bg-card);
        border: 1px solid var(--border-color);
        border-radius: var(--radius-md);
        padding: 16px;
        margin-top: 12px;
    }

    .search-box { margin-top: 12px; }
    .search-box input { width: 100%; }
    .search-box input:focus { width: 100%; }

    .header-hotline {
        margin-top: 12px;
        justify-content: center;
    }

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

    .filter-sidebar {
        position: static;
        margin-bottom: 24px;
    }
}

@media (max-width: 767px) {
    :root {
        --section-padding: 48px 0;
    }

    h1 { font-size: 1.6rem; }
    h2 { font-size: 1.5rem; }
    .hero-title { font-size: 1.8rem; }
    .hero-description { font-size: 15px; }

    .hero-stats {
        flex-wrap: wrap;
        gap: 16px;
    }

    .section-header h2 { font-size: 1.6rem; }

    .cta-content h2 { font-size: 1.6rem; }

    .breadcrumb-section { padding: 100px 0 24px; }
    .breadcrumb-section h1 { font-size: 1.5rem; }

    .product-detail-info h1 { font-size: 1.4rem; }
    .product-detail-info .detail-price { font-size: 1.6rem; }

    .contact-options { flex-direction: column; }

    .blog-detail-content { padding: 16px; }
    .blog-detail-content .featured-image img { height: 250px; }

    .floating-buttons {
        bottom: 16px;
        right: 16px;
        gap: 8px;
    }

    .float-btn {
        width: 44px;
        height: 44px;
        font-size: 18px;
    }

    .author-box { flex-direction: column; text-align: center; }
    .author-box .author-avatar { margin: 0 auto; }
}

@media (max-width: 575px) {
    .hero-buttons { flex-direction: column; }
    .hero-buttons a, .hero-buttons button { width: 100%; justify-content: center; }
    .cta-buttons { flex-direction: column; align-items: center; }
}

/* ============================================
   ADDITIONAL PREMIUM EFFECTS
   ============================================ */

/* Product card 3D hover */
.product-card {
    transform-style: preserve-3d;
    perspective: 1000px;
}

.product-card:hover {
    transform: translateY(-8px) rotateX(2deg);
}

/* Shimmer loading effect on images */
.product-image::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, transparent 40%, rgba(255,255,255,0.15) 50%, transparent 60%);
    background-size: 200% 200%;
    animation: shimmer 3s infinite;
    pointer-events: none;
}

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

/* Floating button labels on hover */
.float-btn {
    position: relative;
}

.float-btn::before {
    content: attr(title);
    position: absolute;
    right: calc(100% + 12px);
    top: 50%;
    transform: translateY(-50%) translateX(10px);
    background: var(--bg-card);
    color: var(--text-primary);
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    font-size: 12px;
    font-weight: 500;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: var(--transition);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-md);
}

.float-btn:hover::before {
    opacity: 1;
    transform: translateY(-50%) translateX(0);
}

/* Gradient text utility */
.gradient-text {
    background: linear-gradient(135deg, var(--primary-light), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Section divider */
.section-divider {
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    border-radius: 3px;
    margin: 0 auto 24px;
}

/* Badge pulse */
.product-badge.badge-hot {
    animation: badge-pulse 2s infinite;
}

@keyframes badge-pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

/* Improved focus styles for accessibility */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

/* Smooth image loading */
img {
    transition: opacity 0.3s ease;
}

img[loading="lazy"] {
    opacity: 0;
}

img[loading="lazy"].loaded {
    opacity: 1;
}

/* ============================================
   PRODUCT DETAIL PAGE
   ============================================ */
.product-detail-section {
    padding: var(--section-padding);
}

/* Gallery */
.product-gallery {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    overflow: hidden;
}

.gallery-main {
    width: 100%;
    aspect-ratio: 4/3;
    overflow: hidden;
    background: var(--bg-section);
}

.gallery-main img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
    cursor: zoom-in;
}

.gallery-main img:hover {
    transform: scale(1.05);
}

.gallery-thumbs {
    display: flex;
    gap: 8px;
    padding: 12px;
}

.gallery-thumb {
    width: 80px;
    height: 60px;
    border-radius: var(--radius-sm);
    overflow: hidden;
    cursor: pointer;
    border: 2px solid transparent;
    transition: var(--transition);
    opacity: 0.6;
}

.gallery-thumb:hover,
.gallery-thumb.active {
    border-color: var(--primary);
    opacity: 1;
}

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

/* Product Detail Info */
.product-detail-info {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    padding: 28px;
}

.product-detail-info h1 {
    font-size: 1.6rem;
    font-weight: 700;
    margin-bottom: 12px;
    line-height: 1.4;
}

.product-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin-bottom: 20px;
    font-size: 13px;
    color: var(--text-secondary);
}

.product-meta i {
    margin-right: 4px;
}

.detail-price {
    font-size: 2rem;
    font-weight: 800;
    color: var(--accent);
    margin-bottom: 4px;
}

.detail-old-price {
    font-size: 14px;
    color: var(--text-muted);
    text-decoration: line-through;
    margin-bottom: 16px;
}

.detail-description {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 24px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border-color);
}

/* Spec Table */
.spec-table {
    width: 100%;
    margin-bottom: 24px;
    border-collapse: collapse;
}

.spec-table tr {
    border-bottom: 1px solid var(--border-color);
}

.spec-table tr:last-child {
    border-bottom: none;
}

.spec-table td {
    padding: 10px 12px;
    font-size: 14px;
    vertical-align: top;
}

.spec-table td:first-child {
    font-weight: 600;
    color: var(--text-primary);
    white-space: nowrap;
    width: 130px;
}

.spec-table td:last-child {
    color: var(--text-secondary);
}

.spec-table tr:hover {
    background: rgba(37, 99, 235, 0.05);
}

/* Contact Options (Product Detail CTA) */
.contact-options {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.contact-option {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 20px;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 14px;
    color: #fff;
    transition: var(--transition);
    flex: 1;
    justify-content: center;
    min-width: 140px;
}

.contact-option i {
    font-size: 16px;
}

.contact-option.zalo {
    background: linear-gradient(135deg, #0068FF, #0044CC);
}

.contact-option.zalo:hover {
    background: linear-gradient(135deg, #0044CC, #003399);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 104, 255, 0.4);
}

.contact-option.facebook {
    background: linear-gradient(135deg, #1877F2, #0d5bc4);
}

.contact-option.facebook:hover {
    background: linear-gradient(135deg, #0d5bc4, #0a49a0);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(24, 119, 242, 0.4);
}

.contact-option.phone {
    background: linear-gradient(135deg, var(--accent), var(--accent-dark));
}

.contact-option.phone:hover {
    background: linear-gradient(135deg, var(--accent-dark), #b45309);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(245, 158, 11, 0.4);
}

/* Video Section */
.video-section {
    margin-top: 40px;
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    padding: 28px;
}

.video-wrapper {
    position: relative;
    padding-bottom: 56.25%;
    height: 0;
    overflow: hidden;
    border-radius: var(--radius-md);
}

.video-wrapper iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
}

/* ============================================
   BLOG DETAIL PAGE
   ============================================ */
.blog-featured {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    overflow: hidden;
    margin-bottom: 40px;
}

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

.blog-featured .featured-body {
    padding: 32px;
}

.blog-featured .featured-body h2 {
    font-size: 1.5rem;
    margin-bottom: 12px;
}

.blog-featured .featured-body h2 a {
    color: var(--text-primary);
    transition: var(--transition);
}

.blog-featured .featured-body h2 a:hover {
    color: var(--primary-light);
}

.blog-detail-content {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    padding: 32px;
}

.blog-detail-content .featured-image {
    margin: -32px -32px 24px;
    overflow: hidden;
}

.blog-detail-content .featured-image img {
    width: 100%;
    height: 400px;
    object-fit: cover;
}

/* Article Meta */
.article-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin-bottom: 20px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
    font-size: 13px;
    color: var(--text-muted);
}

.article-meta span i {
    margin-right: 4px;
    color: var(--primary-light);
}

/* Table of Contents */
.toc-box {
    background: var(--bg-section);
    border: 1px solid var(--border-color);
    border-left: 3px solid var(--primary);
    border-radius: var(--radius-md);
    padding: 20px 24px;
    margin-bottom: 28px;
}

.toc-box h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.toc-box ol {
    padding-left: 20px;
    margin: 0;
}

.toc-box ol li {
    margin-bottom: 6px;
}

.toc-box ol li a {
    color: var(--text-secondary);
    font-size: 14px;
    transition: var(--transition);
}

.toc-box ol li a:hover {
    color: var(--primary-light);
    padding-left: 4px;
}

/* Article Body */
.article-body h2 {
    font-size: 1.4rem;
    font-weight: 700;
    margin-top: 32px;
    margin-bottom: 12px;
    padding-top: 16px;
    border-top: 1px solid var(--border-color);
    color: var(--text-primary);
}

.article-body h2:first-child {
    border-top: none;
    padding-top: 0;
}

.article-body p {
    margin-bottom: 16px;
    line-height: 1.9;
}

.article-body ul,
.article-body ol {
    margin-bottom: 16px;
    padding-left: 24px;
}

.article-body ul li,
.article-body ol li {
    margin-bottom: 8px;
    color: var(--text-secondary);
    line-height: 1.7;
}

.article-body blockquote {
    background: var(--bg-section);
    border-left: 3px solid var(--primary);
    padding: 16px 20px;
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    margin: 20px 0;
}

.article-body blockquote p {
    font-style: italic;
    color: var(--text-primary);
    margin-bottom: 0;
}

/* Article Share */
.article-share {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 20px 0;
    margin-top: 24px;
    border-top: 1px solid var(--border-color);
}

.article-share span {
    font-weight: 600;
    font-size: 14px;
    color: var(--text-secondary);
}

.share-btn {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    color: #fff;
    transition: var(--transition);
    font-size: 14px;
}

.share-btn.fb {
    background: #1877F2;
}

.share-btn.zalo {
    background: #0068FF;
}

.share-btn.twitter {
    background: #1DA1F2;
}

.share-btn:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
    color: #fff;
}

/* Author Box */
.author-box {
    display: flex;
    gap: 20px;
    align-items: flex-start;
    background: var(--bg-section);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 24px;
    margin-top: 24px;
}

.author-avatar {
    width: 64px;
    height: 64px;
    min-width: 64px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    font-weight: 700;
    color: #fff;
}

.author-box h5 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 8px;
}

.author-box p {
    font-size: 14px;
    margin-bottom: 0;
}

/* ============================================
   ABOUT PAGE
   ============================================ */
.about-story {
    padding: var(--section-padding);
}

.story-content h2 {
    font-size: 2rem;
    margin-bottom: 20px;
}

.story-content p {
    font-size: 15px;
    line-height: 1.9;
}

.about-image {
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--border-color);
}

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

/* Process Section */
.process-section {
    padding: var(--section-padding);
    background: var(--bg-section);
}

.process-step {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 28px 20px;
    text-align: center;
    transition: var(--transition);
    height: 100%;
}

.process-step:hover {
    border-color: var(--primary);
    transform: translateY(-6px);
    box-shadow: var(--shadow-glow);
}

.step-number {
    font-size: 2.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary-light), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 16px;
    line-height: 1;
}

.process-step h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 12px;
}

.process-step p {
    font-size: 13px;
    line-height: 1.7;
    margin-bottom: 0;
}

/* Stats Section */
.stats-section {
    padding: var(--section-padding);
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 32px 20px;
    text-align: center;
    transition: var(--transition);
}

.stat-card:hover {
    border-color: var(--primary);
    transform: translateY(-4px);
    box-shadow: var(--shadow-glow);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary-light);
    margin-bottom: 8px;
    line-height: 1;
}

.stat-card p {
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 0;
}

/* ============================================
   CONTACT PAGE
   ============================================ */
.contact-section {
    padding: var(--section-padding);
}

.contact-info-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 32px;
    height: 100%;
}

.contact-info-card h3 {
    font-size: 1.3rem;
    margin-bottom: 28px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-color);
}

.contact-info-item {
    display: flex;
    gap: 16px;
    align-items: flex-start;
    margin-bottom: 20px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
}

.contact-info-item:last-of-type {
    margin-bottom: 20px;
    padding-bottom: 20px;
}

.contact-info-item .icon {
    width: 44px;
    height: 44px;
    min-width: 44px;
    border-radius: var(--radius-md);
    background: rgba(37, 99, 235, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-light);
    font-size: 16px;
}

.contact-info-item h5 {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 4px;
}

.contact-info-item p,
.contact-info-item a {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 0;
    transition: var(--transition);
}

.contact-info-item a:hover {
    color: var(--primary-light);
}

.contact-social {
    display: flex;
    gap: 12px;
    margin-top: 8px;
}

.contact-social a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(37, 99, 235, 0.1);
    color: var(--primary-light);
    transition: var(--transition);
    font-size: 14px;
}

.contact-social a:hover {
    background: var(--primary);
    color: #fff;
    transform: translateY(-3px);
}

/* Contact Form */
.contact-form-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 32px;
    height: 100%;
}

.contact-form-card h3 {
    font-size: 1.3rem;
    margin-bottom: 8px;
}

/* Google Maps */
.map-wrapper {
    margin-top: 48px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--border-color);
    height: 400px;
}

.map-wrapper iframe {
    width: 100%;
    height: 100%;
    border: none;
}

/* ============================================
   LIGHT THEME OVERRIDES & FIXES
   ============================================ */

/* Hero: ensure text is dark/readable on light overlay */
.hero-title,
.hero-title .highlight {
    color: var(--text-primary);
}

.hero-description {
    color: var(--text-secondary);
}

.hero-stat .number {
    color: var(--primary);
}

.hero-stat .label {
    color: var(--text-muted);
}

.hero-badge {
    background: rgba(37, 99, 235, 0.08);
    border: 1px solid rgba(37, 99, 235, 0.2);
    color: var(--primary);
}

/* Breadcrumb: light background */
.breadcrumb-section {
    background: linear-gradient(135deg, var(--bg-section), #F1F5F9);
}

/* Header link color in top bar */
.header-top .top-info span {
    color: rgba(255,255,255,0.95);
}

/* Outline button: visible border on light bg */
.btn-outline-custom {
    border-color: var(--primary);
    color: var(--primary);
}

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

/* Section badge: clearer on light bg */
.section-header .section-badge {
    background: rgba(37, 99, 235, 0.08);
    border: 1px solid rgba(37, 99, 235, 0.18);
    color: var(--primary);
}

/* Feature card icon: softer on light bg */
.feature-card .feature-icon {
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.1), rgba(245, 158, 11, 0.08));
    color: var(--primary);
}

/* Product card glass effect: solid white on light bg */
.product-card,
.blog-card,
.feature-card,
.brand-item,
.filter-sidebar,
.sidebar-widget,
.blog-detail-content,
.blog-featured,
.contact-info-card,
.contact-form-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
}

/* Sticky header active bg: full white */
.site-header {
    box-shadow: 0 1px 0 var(--border-color);
}

/* Input background on all form inputs */
.form-group input,
.form-group textarea,
.form-group select,
.sort-options select {
    background: var(--bg-card);
    color: var(--text-primary);
}

/* Sort select */
.sort-options select {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
}

/* Sidebar tag hover */
.sidebar-tags a:hover {
    background: rgba(37, 99, 235, 0.08);
    border-color: var(--primary);
    color: var(--primary);
}

/* CTA buttons should be white outlined on blue bg */
.cta-section .btn-outline-custom {
    border-color: rgba(255,255,255,0.5);
    color: #fff;
}

.cta-section .btn-outline-custom:hover {
    background: #fff;
    color: var(--primary);
    border-color: #fff;
}

/* Footer: distinct light gray background */
.site-footer {
    background: #F1F5F9;
    border-top: 1px solid var(--border-color);
}

/* Scrollbar: light-mode friendly */
::-webkit-scrollbar-track {
    background: #F1F5F9;
}

::-webkit-scrollbar-thumb {
    background: #CBD5E1;
}

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

/* ==========================================
   PRODUCT DETAIL PAGE
   ========================================== */
.product-detail-section {
    padding: 40px 0 60px;
}

/* Gallery */
.product-gallery {
    position: sticky;
    top: 100px;
}

.gallery-main {
    background: var(--bg-card);
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--border-color);
    margin-bottom: 12px;
}

.gallery-main img {
    width: 100%;
    height: 400px;
    object-fit: contain;
    padding: 8px;
    transition: transform 0.3s ease;
}

.gallery-main img:hover {
    transform: scale(1.05);
}

.gallery-thumbs {
    display: flex;
    gap: 8px;
}

.gallery-thumb {
    flex: 1;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
    cursor: pointer;
    transition: var(--transition);
    padding: 4px;
    background: var(--bg-card);
}

.gallery-thumb:hover,
.gallery-thumb.active {
    border-color: var(--primary-light);
    box-shadow: 0 0 0 2px rgba(37,99,235,0.15);
}

.gallery-thumb img {
    width: 100%;
    height: 70px;
    object-fit: cover;
}

/* Product Detail Info */
.product-detail-info {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 28px;
}

.product-detail-info h1 {
    font-size: 1.6rem;
    font-weight: 700;
    margin-bottom: 12px;
    line-height: 1.4;
    color: var(--text-primary);
}

.product-detail-info .product-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin-bottom: 20px;
    font-size: 13px;
    color: var(--text-secondary);
}

.product-detail-info .product-meta span i {
    margin-right: 4px;
}

/* Detail Price */
.detail-price {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--accent);
    margin-bottom: 4px;
}

.detail-old-price {
    font-size: 14px;
    color: var(--text-muted);
    text-decoration: line-through;
    margin-bottom: 16px;
}

.discount-badge {
    display: inline-block;
    background: linear-gradient(135deg, #EF4444, #DC2626);
    color: #fff;
    font-size: 12px;
    font-weight: 700;
    padding: 2px 8px;
    border-radius: 4px;
    margin-left: 8px;
    text-decoration: none;
}

/* Detail Description */
.detail-description {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 24px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
}

/* Spec Table */
.spec-table {
    width: 100%;
    margin-bottom: 24px;
    border-collapse: collapse;
}

.spec-table tr {
    border-bottom: 1px solid var(--border-color);
}

.spec-table tr:last-child {
    border-bottom: none;
}

.spec-table td {
    padding: 10px 12px;
    font-size: 14px;
    vertical-align: top;
}

.spec-table td:first-child {
    font-weight: 600;
    color: var(--text-primary);
    width: 130px;
    white-space: nowrap;
}

.spec-table td:last-child {
    color: var(--text-secondary);
}

.spec-table tr:nth-child(odd) {
    background: rgba(37,99,235,0.03);
}

/* Contact Options */
.contact-options {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.contact-option {
    flex: 1;
    min-width: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 16px;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.contact-option.zalo {
    background: #0068FF;
    color: #fff;
    border-color: #0068FF;
}

.contact-option.zalo:hover {
    background: #0056D6;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,104,255,0.3);
}

.contact-option.facebook {
    background: #1877F2;
    color: #fff;
    border-color: #1877F2;
}

.contact-option.facebook:hover {
    background: #1565D8;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(24,119,242,0.3);
}

.contact-option.phone {
    background: linear-gradient(135deg, #22C55E, #16A34A);
    color: #fff;
    border-color: #22C55E;
}

.contact-option.phone:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(34,197,94,0.3);
}

/* Video Section */
.video-section {
    margin-top: 40px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 28px;
}

.video-wrapper {
    position: relative;
    padding-bottom: 56.25%;
    height: 0;
    overflow: hidden;
    border-radius: 10px;
}

.video-wrapper iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
    border-radius: 10px;
}

/* ==========================================
   BLOG DETAIL PAGE
   ========================================== */
.blog-detail-content .featured-image {
    border-radius: var(--radius);
    overflow: hidden;
    margin-bottom: 24px;
}

.blog-detail-content .featured-image img {
    width: 100%;
    height: auto;
    border-radius: var(--radius);
}

.article-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin-bottom: 16px;
    font-size: 13px;
    color: var(--text-secondary);
}

.article-meta span i {
    margin-right: 4px;
    color: var(--primary-light);
}

.article-body h2 {
    font-size: 1.4rem;
    margin-top: 32px;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.article-body h3 {
    font-size: 1.15rem;
    margin-top: 24px;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.article-body p {
    margin-bottom: 16px;
    line-height: 1.8;
    color: var(--text-secondary);
}

.article-body ul,
.article-body ol {
    margin-bottom: 16px;
    padding-left: 24px;
}

.article-body li {
    margin-bottom: 8px;
    line-height: 1.7;
    color: var(--text-secondary);
}

.article-body blockquote {
    border-left: 4px solid var(--primary-light);
    background: rgba(37,99,235,0.05);
    padding: 16px 20px;
    margin: 24px 0;
    border-radius: 0 8px 8px 0;
    font-style: italic;
}

.article-body blockquote p {
    margin-bottom: 0;
    color: var(--text-primary);
}

/* Share Buttons */
.article-share {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 32px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
}

.article-share span {
    font-weight: 600;
    font-size: 14px;
    color: var(--text-primary);
}

.share-btn {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    color: #fff;
    font-size: 14px;
    transition: var(--transition);
}

.share-btn.fb { background: #1877F2; }
.share-btn.zalo { background: #0068FF; }
.share-btn.twitter { background: #1DA1F2; }

.share-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    color: #fff;
}

/* Author Box */
.author-box {
    display: flex;
    gap: 16px;
    align-items: flex-start;
    margin-top: 32px;
    padding: 24px;
    background: rgba(37,99,235,0.04);
    border-radius: var(--radius);
    border: 1px solid var(--border-color);
}

.author-avatar {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 18px;
    flex-shrink: 0;
}

.author-box h5 {
    font-size: 15px;
    margin-bottom: 4px;
    color: var(--text-primary);
}

.author-box p {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 0;
}

/* ==========================================
   PRODUCT DETAIL RESPONSIVE
   ========================================== */
@media (max-width: 991px) {
    .product-gallery {
        position: static;
    }
    .gallery-main img {
        height: 300px;
    }
    .product-detail-info {
        padding: 20px;
    }
    .product-detail-info h1 {
        font-size: 1.3rem;
    }
    .detail-price {
        font-size: 1.5rem;
    }
    .contact-options {
        flex-direction: column;
    }
    .contact-option {
        min-width: auto;
    }
}

@media (max-width: 576px) {
    .gallery-main img {
        height: 220px;
    }
    .gallery-thumb img {
        height: 50px;
    }
    .product-detail-info h1 {
        font-size: 1.15rem;
    }
    .detail-price {
        font-size: 1.3rem;
    }
    .spec-table td:first-child {
        width: 100px;
        font-size: 13px;
    }
    .spec-table td:last-child {
        font-size: 13px;
    }
    .article-meta {
        gap: 8px;
    }
    .author-box {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
}

/* ==========================================
   COMMITMENT WIDGET
   ========================================== */
.commitment-widget .commitment-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.commitment-widget .commitment-list li {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 0;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
    transition: var(--transition);
}

.commitment-widget .commitment-list li:hover {
    padding-left: 4px;
    color: var(--primary-light);
}

.commitment-widget .commitment-list li i {
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    font-size: 13px;
    color: #fff;
    flex-shrink: 0;
}

.commitment-widget .commitment-list li:nth-child(1) i { background: linear-gradient(135deg, #3B82F6, #2563EB); }
.commitment-widget .commitment-list li:nth-child(2) i { background: linear-gradient(135deg, #22C55E, #16A34A); }
.commitment-widget .commitment-list li:nth-child(3) i { background: linear-gradient(135deg, #F59E0B, #D97706); }
.commitment-widget .commitment-list li:nth-child(4) i { background: linear-gradient(135deg, #8B5CF6, #7C3AED); }
.commitment-widget .commitment-list li:nth-child(5) i { background: linear-gradient(135deg, #EC4899, #DB2777); }