/* =====================================================
   CHIẾU SÁNG HOÀNG PHÁT - Main Stylesheet
   ===================================================== */

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

:root {
    --primary:    #0057a8;
    --primary-dk: #003d7a;
    --primary-lt: #e8f1fb;
    --accent:     #f5a623;
    --accent-dk:  #d4881a;
    --text:       #333333;
    --text-muted: #666666;
    --border:     #e0e0e0;
    --bg-light:   #f5f7fa;
    --white:      #ffffff;
    --shadow:     0 2px 12px rgba(0,0,0,.1);
    --shadow-md:  0 4px 24px rgba(0,0,0,.14);
    --radius:     6px;
    --radius-lg:  12px;
    --transition: all .25s ease;
}

html { scroll-behavior: smooth; }

body {
    font-family: 'Be Vietnam Pro', sans-serif;
    font-size: 15px;
    color: var(--text);
    background: var(--white);
    line-height: 1.6;
}

a { color: inherit; text-decoration: none; transition: var(--transition); }
a:hover { color: var(--primary); }
ul { list-style: none; }
img { max-width: 100%; display: block; }
button { cursor: pointer; font-family: inherit; }

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 16px;
}

/* --- Utilities --- */
.text-center  { text-align: center; }
.text-primary { color: var(--primary); }
.text-accent  { color: var(--accent); }
.bg-light     { background: var(--bg-light); }
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }

.section-header {
    text-align: center;
    margin-bottom: 40px;
}
.section-header h2 {
    font-size: 28px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 10px;
    position: relative;
    display: inline-block;
}
.section-header h2::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background: var(--accent);
    margin: 10px auto 0;
    border-radius: 2px;
}
.section-header p {
    color: var(--text-muted);
    font-size: 15px;
    max-width: 600px;
    margin: 0 auto;
}

/* =====================================================
   TOP BAR
   ===================================================== */
.topbar {
    background: var(--primary-dk);
    color: #cde;
    font-size: 13px;
    padding: 6px 0;
}
.topbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.topbar a { color: #cde; }
.topbar a:hover { color: #fff; }
.topbar-left { display: flex; align-items: center; gap: 14px; }
.topbar-left i { margin-right: 5px; }
.topbar .separator { opacity: .4; }
.topbar-right { display: flex; gap: 12px; }
.topbar-right a {
    width: 26px; height: 26px;
    background: rgba(255,255,255,.15);
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-size: 12px;
}
.topbar-right a:hover { background: var(--accent); color: #fff; }

/* =====================================================
   HEADER
   ===================================================== */
.header {
    background: var(--white);
    box-shadow: 0 2px 8px rgba(0,0,0,.08);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: var(--transition);
}
.header.scrolled { box-shadow: var(--shadow-md); }

.header-inner {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 12px 0;
}

/* Logo */
.logo a {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
}
.logo-icon {
    width: 50px; height: 50px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border-radius: 12px;
    display: flex; align-items: center; justify-content: center;
    font-size: 24px;
    color: #fff;
    flex-shrink: 0;
}
.logo-text { display: flex; flex-direction: column; line-height: 1.2; }
.logo-main { font-size: 22px; font-weight: 800; color: var(--primary); }
.logo-sub   { font-size: 12px; font-weight: 500; color: var(--accent); text-transform: uppercase; letter-spacing: 1px; }

/* Search */
.header-search { flex: 1; max-width: 440px; }
.header-search form {
    display: flex;
    border: 2px solid var(--border);
    border-radius: 30px;
    overflow: hidden;
    transition: var(--transition);
}
.header-search form:focus-within { border-color: var(--primary); }
.header-search input {
    flex: 1;
    padding: 9px 16px;
    border: none; outline: none;
    font-size: 14px;
    font-family: inherit;
}
.header-search button {
    background: var(--primary);
    color: #fff;
    border: none;
    padding: 0 18px;
    font-size: 15px;
    transition: var(--transition);
}
.header-search button:hover { background: var(--primary-dk); }

/* Header Actions */
.header-actions { display: flex; align-items: center; gap: 14px; margin-left: auto; }
.action-hotline {
    display: flex; align-items: center; gap: 10px;
    color: var(--primary);
}
.action-hotline i {
    font-size: 22px;
    color: var(--accent);
}
.action-hotline small { display: block; font-size: 11px; color: var(--text-muted); }
.action-hotline strong { font-size: 16px; font-weight: 700; }

.btn-contact-header {
    background: var(--accent);
    color: #fff !important;
    padding: 9px 18px;
    border-radius: 30px;
    font-weight: 600;
    font-size: 14px;
    white-space: nowrap;
    display: flex; align-items: center; gap: 7px;
    transition: var(--transition);
}
.btn-contact-header:hover { background: var(--accent-dk); transform: translateY(-1px); }

/* Hamburger */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    padding: 4px;
}
.hamburger span {
    display: block; width: 26px; height: 2.5px;
    background: var(--primary);
    border-radius: 2px;
    transition: var(--transition);
}
.hamburger.open span:nth-child(1) { transform: translateY(7.5px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7.5px) rotate(-45deg); }

/* =====================================================
   NAVBAR
   ===================================================== */
.navbar {
    background: var(--primary);
    position: relative;
    z-index: 999;
}
.nav-menu {
    display: flex;
    align-items: stretch;
}
.nav-menu > li > a {
    display: flex;
    align-items: center;
    gap: 5px;
    color: rgba(255,255,255,.9);
    padding: 14px 18px;
    font-size: 14px;
    font-weight: 600;
    letter-spacing: .3px;
    transition: var(--transition);
    position: relative;
}
.nav-menu > li > a::after {
    content: '';
    position: absolute;
    bottom: 0; left: 50%; right: 50%;
    height: 3px;
    background: var(--accent);
    transition: var(--transition);
}
.nav-menu > li:hover > a,
.nav-menu > li.active > a {
    color: #fff;
    background: rgba(255,255,255,.1);
}
.nav-menu > li:hover > a::after,
.nav-menu > li.active > a::after { left: 0; right: 0; }

/* Mega Dropdown */
.has-dropdown { position: relative; }
.dropdown-mega {
    position: absolute;
    top: 100%; left: 50%;
    transform: translateX(-50%);
    background: #fff;
    box-shadow: var(--shadow-md);
    border-top: 3px solid var(--accent);
    min-width: 700px;
    opacity: 0;
    visibility: hidden;
    transform: translateX(-50%) translateY(10px);
    transition: var(--transition);
    z-index: 1000;
}
.has-dropdown:hover .dropdown-mega {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}
.mega-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0;
    padding: 20px;
}
.mega-col { padding: 4px 0; }
.mega-cat-title {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    color: var(--text);
    font-size: 14px;
    font-weight: 500;
    border-radius: var(--radius);
    transition: var(--transition);
}
.mega-cat-title i {
    width: 32px; height: 32px;
    background: var(--primary-lt);
    color: var(--primary);
    border-radius: 8px;
    display: flex; align-items: center; justify-content: center;
    font-size: 14px;
    flex-shrink: 0;
    transition: var(--transition);
}
.mega-cat-title:hover {
    background: var(--primary-lt);
    color: var(--primary);
}
.mega-cat-title:hover i {
    background: var(--primary);
    color: #fff;
}

/* =====================================================
   BREADCRUMB
   ===================================================== */
.breadcrumb-bar {
    background: var(--bg-light);
    border-bottom: 1px solid var(--border);
    padding: 10px 0;
}
.breadcrumb {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    color: var(--text-muted);
    flex-wrap: wrap;
}
.breadcrumb a { color: var(--primary); }
.breadcrumb a:hover { text-decoration: underline; }
.bc-sep { color: var(--border); font-size: 10px; }
.bc-current { color: var(--text); font-weight: 500; }

/* =====================================================
   HERO SLIDER
   ===================================================== */
.hero-slider {
    position: relative;
    overflow: hidden;
    background: #001a40;
}
.slides-wrapper {
    display: flex;
    transition: transform .6s cubic-bezier(.4,0,.2,1);
}
.slide {
    min-width: 100%;
    position: relative;
}
.slide-img {
    width: 100%;
    height: 520px;
    object-fit: cover;
    opacity: .7;
}
.slide-placeholder {
    width: 100%;
    height: 520px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 80px;
    color: rgba(255,255,255,.1);
}
.slide-content {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    padding: 0 80px;
    background: linear-gradient(90deg, rgba(0,30,70,.75) 0%, transparent 70%);
}
.slide-text { max-width: 560px; color: #fff; }
.slide-text .slide-tag {
    display: inline-block;
    background: var(--accent);
    color: #fff;
    padding: 4px 14px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 14px;
    letter-spacing: .5px;
}
.slide-text h1, .slide-text h2 {
    font-size: 38px;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 14px;
}
.slide-text p {
    font-size: 16px;
    opacity: .9;
    margin-bottom: 24px;
    line-height: 1.7;
}
.slide-text .slide-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--accent);
    color: #fff;
    padding: 12px 28px;
    border-radius: 30px;
    font-weight: 700;
    font-size: 15px;
    transition: var(--transition);
}
.slide-text .slide-btn:hover { background: var(--accent-dk); transform: translateY(-2px); }
.slide-text .slide-btn-outline {
    margin-left: 12px;
    background: transparent;
    border: 2px solid rgba(255,255,255,.7);
    color: #fff;
    padding: 10px 24px;
    border-radius: 30px;
    font-weight: 600;
    font-size: 15px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
}
.slide-text .slide-btn-outline:hover { background: rgba(255,255,255,.15); }

/* Slider Controls */
.slider-btn {
    position: absolute;
    top: 50%; transform: translateY(-50%);
    width: 44px; height: 44px;
    background: rgba(255,255,255,.2);
    border: 2px solid rgba(255,255,255,.5);
    color: #fff;
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-size: 16px;
    z-index: 10;
    transition: var(--transition);
    cursor: pointer;
}
.slider-btn:hover { background: var(--accent); border-color: var(--accent); }
.slider-prev { left: 20px; }
.slider-next { right: 20px; }
.slider-dots {
    position: absolute;
    bottom: 20px; left: 50%;
    transform: translateX(-50%);
    display: flex; gap: 8px;
}
.slider-dot {
    width: 10px; height: 10px;
    background: rgba(255,255,255,.5);
    border-radius: 50%;
    cursor: pointer;
    transition: var(--transition);
    border: none;
}
.slider-dot.active { background: var(--accent); transform: scale(1.3); }

/* =====================================================
   STATS BAR
   ===================================================== */
.stats-bar {
    background: var(--primary);
    padding: 24px 0;
}
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0;
}
.stat-item {
    text-align: center;
    color: #fff;
    padding: 12px 20px;
    border-right: 1px solid rgba(255,255,255,.2);
}
.stat-item:last-child { border-right: none; }
.stat-item .stat-num {
    font-size: 36px;
    font-weight: 800;
    color: var(--accent);
    line-height: 1;
}
.stat-item .stat-label {
    font-size: 13px;
    opacity: .85;
    margin-top: 4px;
}

/* =====================================================
   PRODUCT CATEGORIES SECTION
   ===================================================== */
.categories-section { padding: 60px 0; }
.cat-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}
.cat-card {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    text-align: center;
    transition: var(--transition);
    cursor: pointer;
}
.cat-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
    border-color: var(--primary);
}
.cat-card-img {
    height: 160px;
    background: var(--primary-lt);
    display: flex; align-items: center; justify-content: center;
    overflow: hidden;
}
.cat-card-img img { width: 100%; height: 100%; object-fit: cover; transition: var(--transition); }
.cat-card:hover .cat-card-img img { transform: scale(1.06); }
.cat-card-img .cat-icon {
    font-size: 48px;
    color: var(--primary);
    opacity: .4;
}
.cat-card-body { padding: 16px 12px; }
.cat-card-body h3 {
    font-size: 15px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 4px;
}
.cat-card-body span {
    font-size: 12px;
    color: var(--text-muted);
}

/* =====================================================
   PRODUCT CARDS
   ===================================================== */
.products-section { padding: 60px 0; background: var(--bg-light); }
.products-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}
.product-card {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition);
    display: flex; flex-direction: column;
}
.product-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}
.product-card-img {
    position: relative;
    height: 200px;
    background: var(--bg-light);
    overflow: hidden;
    display: flex; align-items: center; justify-content: center;
}
.product-card-img img { width: 100%; height: 100%; object-fit: contain; transition: var(--transition); padding: 10px; }
.product-card:hover .product-card-img img { transform: scale(1.05); }
.product-badge {
    position: absolute;
    top: 10px; left: 10px;
    background: var(--accent);
    color: #fff;
    font-size: 11px;
    font-weight: 700;
    padding: 3px 10px;
    border-radius: 20px;
}
.product-badge.new { background: #28a745; }
.product-badge.sale { background: #dc3545; }
.product-card-body { padding: 16px; flex: 1; display: flex; flex-direction: column; }
.product-cat {
    font-size: 11px;
    color: var(--primary);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .5px;
    margin-bottom: 6px;
}
.product-card-body h3 {
    font-size: 15px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 8px;
    line-height: 1.4;
    flex: 1;
}
.product-card-body h3 a:hover { color: var(--primary); }
.product-spec {
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 12px;
}
.product-spec span { margin-right: 10px; }
.product-spec i { color: var(--primary); margin-right: 3px; }
.product-card-footer {
    display: flex;
    gap: 8px;
    border-top: 1px solid var(--border);
    padding-top: 12px;
}
.btn-detail {
    flex: 1;
    padding: 8px;
    border: 2px solid var(--primary);
    background: transparent;
    color: var(--primary);
    border-radius: var(--radius);
    font-size: 13px;
    font-weight: 600;
    text-align: center;
    transition: var(--transition);
}
.btn-detail:hover { background: var(--primary); color: #fff; }
.btn-inquiry {
    flex: 1;
    padding: 8px;
    background: var(--accent);
    color: #fff;
    border: none;
    border-radius: var(--radius);
    font-size: 13px;
    font-weight: 600;
    text-align: center;
    transition: var(--transition);
    cursor: pointer;
}
.btn-inquiry:hover { background: var(--accent-dk); }

/* View All Button */
.view-all-wrap { text-align: center; margin-top: 36px; }
.btn-view-all {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--primary);
    color: #fff;
    padding: 12px 32px;
    border-radius: 30px;
    font-weight: 700;
    font-size: 15px;
    transition: var(--transition);
    border: 2px solid var(--primary);
}
.btn-view-all:hover { background: transparent; color: var(--primary); }

/* =====================================================
   WHY US SECTION
   ===================================================== */
.whyus-section { padding: 60px 0; }
.whyus-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.whyus-card {
    text-align: center;
    padding: 30px 20px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    transition: var(--transition);
}
.whyus-card:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--primary);
    transform: translateY(-4px);
}
.whyus-icon {
    width: 64px; height: 64px;
    background: var(--primary-lt);
    color: var(--primary);
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-size: 26px;
    margin: 0 auto 16px;
    transition: var(--transition);
}
.whyus-card:hover .whyus-icon { background: var(--primary); color: #fff; }
.whyus-card h3 { font-size: 16px; font-weight: 700; color: var(--primary); margin-bottom: 8px; }
.whyus-card p { font-size: 13px; color: var(--text-muted); line-height: 1.6; }

/* =====================================================
   SUPPORT SECTION
   ===================================================== */
.support-section { padding: 60px 0; background: var(--bg-light); }
.support-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 16px;
}
.support-card {
    background: #fff;
    border-radius: var(--radius-lg);
    padding: 20px 14px;
    text-align: center;
    border: 1px solid var(--border);
    transition: var(--transition);
}
.support-card:hover { box-shadow: var(--shadow); border-color: var(--primary); }
.support-avatar {
    width: 70px; height: 70px;
    border-radius: 50%;
    object-fit: cover;
    margin: 0 auto 10px;
    border: 3px solid var(--primary-lt);
    background: var(--primary-lt);
    display: flex; align-items: center; justify-content: center;
    font-size: 28px;
    color: var(--primary);
}
.support-card h4 { font-size: 14px; font-weight: 700; color: var(--text); margin-bottom: 2px; }
.support-card .region { font-size: 12px; color: var(--primary); font-weight: 600; margin-bottom: 8px; }
.support-card .phone {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    color: var(--accent-dk);
    font-weight: 700;
    font-size: 14px;
}
.support-card .phone i { font-size: 12px; }
.support-online {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 11px;
    color: #28a745;
    margin-top: 6px;
}
.support-online::before {
    content: '';
    width: 7px; height: 7px;
    background: #28a745;
    border-radius: 50%;
    display: inline-block;
    animation: pulse 1.5s infinite;
}
@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: .4; }
}

/* =====================================================
   NEWS SECTION
   ===================================================== */
.news-section { padding: 60px 0; }
.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.news-card {
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--border);
    transition: var(--transition);
    background: #fff;
}
.news-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
.news-card-img {
    height: 200px;
    overflow: hidden;
    background: var(--primary-lt);
    display: flex; align-items: center; justify-content: center;
}
.news-card-img img { width: 100%; height: 100%; object-fit: cover; transition: var(--transition); }
.news-card:hover .news-card-img img { transform: scale(1.05); }
.news-card-img .placeholder-icon { font-size: 48px; color: var(--primary); opacity: .3; }
.news-card-body { padding: 18px; }
.news-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 10px;
    font-size: 12px;
    color: var(--text-muted);
}
.news-meta i { color: var(--primary); margin-right: 3px; }
.news-card-body h3 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 10px;
    line-height: 1.5;
}
.news-card-body h3 a:hover { color: var(--primary); }
.news-card-body p { font-size: 13px; color: var(--text-muted); line-height: 1.6; margin-bottom: 14px; }
.read-more {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--primary);
    font-weight: 600;
    font-size: 13px;
}
.read-more i { transition: var(--transition); }
.read-more:hover i { transform: translateX(4px); }

/* =====================================================
   CTA BANNER
   ===================================================== */
.cta-section {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dk) 100%);
    padding: 60px 0;
    color: #fff;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.cta-section::before {
    content: '';
    position: absolute;
    top: -50%; left: -10%;
    width: 400px; height: 400px;
    background: rgba(255,255,255,.04);
    border-radius: 50%;
}
.cta-section::after {
    content: '';
    position: absolute;
    bottom: -50%; right: -10%;
    width: 500px; height: 500px;
    background: rgba(255,255,255,.04);
    border-radius: 50%;
}
.cta-inner { position: relative; z-index: 1; }
.cta-inner h2 { font-size: 30px; font-weight: 800; margin-bottom: 12px; }
.cta-inner p { font-size: 16px; opacity: .85; margin-bottom: 28px; }
.cta-buttons { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.btn-cta-primary {
    background: var(--accent);
    color: #fff;
    padding: 13px 32px;
    border-radius: 30px;
    font-weight: 700;
    font-size: 15px;
    transition: var(--transition);
    display: inline-flex; align-items: center; gap: 8px;
}
.btn-cta-primary:hover { background: var(--accent-dk); transform: translateY(-2px); color: #fff; }
.btn-cta-outline {
    background: transparent;
    border: 2px solid rgba(255,255,255,.7);
    color: #fff;
    padding: 11px 28px;
    border-radius: 30px;
    font-weight: 600;
    font-size: 15px;
    transition: var(--transition);
    display: inline-flex; align-items: center; gap: 8px;
}
.btn-cta-outline:hover { background: rgba(255,255,255,.15); color: #fff; }

/* =====================================================
   PARTNERS / CERTIFICATES
   ===================================================== */
.partners-section { padding: 40px 0; background: var(--bg-light); }
.partners-track {
    display: flex;
    gap: 30px;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
}
.partner-logo {
    height: 50px;
    object-fit: contain;
    filter: grayscale(1);
    opacity: .6;
    transition: var(--transition);
}
.partner-logo:hover { filter: none; opacity: 1; }

/* =====================================================
   FOOTER
   ===================================================== */
.footer { background: #0d1a2d; color: #aab; }
.footer-top { padding: 50px 0 30px; }
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.6fr;
    gap: 36px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 14px;
}
.footer-logo i {
    font-size: 28px;
    color: var(--accent);
}
.footer-logo .logo-main { font-size: 20px; font-weight: 800; color: #fff; }
.footer-logo .logo-sub  { font-size: 11px; color: var(--accent); letter-spacing: 1px; text-transform: uppercase; }

.footer-about p { font-size: 13px; line-height: 1.7; }
.footer-social {
    display: flex;
    gap: 10px;
    margin-top: 16px;
}
.footer-social a {
    width: 34px; height: 34px;
    background: rgba(255,255,255,.08);
    border-radius: 8px;
    display: flex; align-items: center; justify-content: center;
    font-size: 14px;
    color: #aab;
    transition: var(--transition);
}
.footer-social a:hover { background: var(--accent); color: #fff; }

.footer-title {
    font-size: 15px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 16px;
    padding-bottom: 10px;
    border-bottom: 2px solid rgba(255,255,255,.1);
}

.footer-links li { margin-bottom: 8px; }
.footer-links a {
    font-size: 13px;
    color: #aab;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: var(--transition);
}
.footer-links a i { color: var(--accent); font-size: 10px; }
.footer-links a:hover { color: #fff; padding-left: 4px; }

.footer-contact-list li {
    display: flex;
    gap: 10px;
    margin-bottom: 10px;
    font-size: 13px;
    align-items: flex-start;
}
.footer-contact-list i { color: var(--accent); margin-top: 3px; flex-shrink: 0; }
.footer-contact-list a { color: #aab; }
.footer-contact-list a:hover { color: #fff; }

.footer-newsletter h5 { color: #fff; font-size: 13px; margin: 14px 0 8px; }
.newsletter-form {
    display: flex;
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid rgba(255,255,255,.15);
}
.newsletter-form input {
    flex: 1;
    background: rgba(255,255,255,.07);
    border: none;
    padding: 9px 12px;
    color: #fff;
    font-size: 13px;
    font-family: inherit;
    outline: none;
}
.newsletter-form input::placeholder { color: rgba(255,255,255,.4); }
.newsletter-form button {
    background: var(--accent);
    color: #fff;
    border: none;
    padding: 0 14px;
    font-size: 14px;
    cursor: pointer;
    transition: var(--transition);
}
.newsletter-form button:hover { background: var(--accent-dk); }

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,.08);
    padding: 16px 0;
}
.footer-bottom-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 13px;
    color: #778;
}
.footer-bottom-inner a { color: var(--accent); }

/* =====================================================
   FLOATING BUTTONS
   ===================================================== */
.floating-buttons {
    position: fixed;
    right: 20px;
    bottom: 30px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.float-btn {
    width: 46px; height: 46px;
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-size: 18px;
    text-decoration: none;
    box-shadow: 0 4px 14px rgba(0,0,0,.2);
    transition: var(--transition);
    border: none;
    cursor: pointer;
}
.float-btn:hover { transform: scale(1.1); }
.zalo-btn { background: #0066ff; color: #fff; }
.phone-btn { background: #28a745; color: #fff; animation: ring 2s infinite; }
.scroll-top { background: var(--primary); color: #fff; opacity: 0; pointer-events: none; transition: var(--transition); }
.scroll-top.visible { opacity: 1; pointer-events: all; }
@keyframes ring {
    0%,100% { transform: scale(1); }
    25% { transform: scale(1.08) rotate(-5deg); }
    75% { transform: scale(1.08) rotate(5deg); }
}

/* =====================================================
   PAGE LAYOUTS
   ===================================================== */
.page-hero {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dk) 100%);
    padding: 50px 0;
    color: #fff;
    text-align: center;
}
.page-hero h1 { font-size: 32px; font-weight: 800; margin-bottom: 8px; }
.page-hero p   { font-size: 15px; opacity: .85; }

.page-section { padding: 60px 0; }

/* About Page */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}
.about-content h2 { font-size: 26px; font-weight: 800; color: var(--primary); margin-bottom: 16px; }
.about-content p  { color: var(--text-muted); line-height: 1.8; margin-bottom: 14px; }
.about-features   { margin-top: 20px; display: flex; flex-direction: column; gap: 12px; }
.about-feature    { display: flex; gap: 12px; align-items: flex-start; }
.feature-icon {
    width: 40px; height: 40px; flex-shrink: 0;
    background: var(--primary-lt);
    color: var(--primary);
    border-radius: 10px;
    display: flex; align-items: center; justify-content: center;
    font-size: 16px;
}
.about-feature h4 { font-size: 15px; font-weight: 700; color: var(--text); margin-bottom: 3px; }
.about-feature p  { font-size: 13px; color: var(--text-muted); }

.about-img-wrap img { border-radius: var(--radius-lg); box-shadow: var(--shadow-md); width: 100%; }
.about-img-placeholder {
    height: 420px;
    background: var(--primary-lt);
    border-radius: var(--radius-lg);
    display: flex; align-items: center; justify-content: center;
    font-size: 80px;
    color: var(--primary);
    opacity: .3;
}

/* Values */
.values-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.value-card {
    padding: 30px 24px;
    background: #fff;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    text-align: center;
    transition: var(--transition);
}
.value-card:hover { box-shadow: var(--shadow-md); border-color: var(--primary); }
.value-card .value-icon {
    width: 60px; height: 60px;
    background: var(--primary-lt);
    color: var(--primary);
    border-radius: 16px;
    display: flex; align-items: center; justify-content: center;
    font-size: 24px;
    margin: 0 auto 16px;
}
.value-card h3 { font-size: 17px; font-weight: 700; color: var(--primary); margin-bottom: 8px; }
.value-card p   { font-size: 14px; color: var(--text-muted); line-height: 1.7; }

/* =====================================================
   PRODUCTS PAGE
   ===================================================== */
.products-page { padding: 40px 0 60px; }
.products-layout {
    display: grid;
    grid-template-columns: 260px 1fr;
    gap: 28px;
    align-items: start;
}

/* Sidebar */
.sidebar { position: sticky; top: 80px; }
.sidebar-box {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-bottom: 20px;
}
.sidebar-box-title {
    background: var(--primary);
    color: #fff;
    padding: 14px 18px;
    font-size: 15px;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 8px;
}
.sidebar-cat-list li a {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 11px 18px;
    font-size: 14px;
    border-bottom: 1px solid var(--border);
    color: var(--text);
    transition: var(--transition);
}
.sidebar-cat-list li:last-child a { border-bottom: none; }
.sidebar-cat-list li a:hover,
.sidebar-cat-list li.active a {
    background: var(--primary-lt);
    color: var(--primary);
    padding-left: 24px;
}
.sidebar-cat-list li a i { color: var(--primary); width: 16px; }

/* Products Toolbar */
.products-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding: 12px 16px;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius);
}
.toolbar-info { font-size: 14px; color: var(--text-muted); }
.toolbar-sort { display: flex; align-items: center; gap: 8px; font-size: 14px; }
.toolbar-sort select {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 6px 10px;
    font-size: 14px;
    font-family: inherit;
    color: var(--text);
    outline: none;
}

/* Product Detail */
.product-detail-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: start;
}
.product-gallery { position: sticky; top: 80px; }
.gallery-main {
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-bottom: 12px;
    height: 380px;
    display: flex; align-items: center; justify-content: center;
    background: var(--bg-light);
}
.gallery-main img { max-width: 100%; max-height: 100%; object-fit: contain; padding: 16px; }
.gallery-thumbs { display: flex; gap: 8px; flex-wrap: wrap; }
.thumb-item {
    width: 70px; height: 70px;
    border: 2px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    cursor: pointer;
    transition: var(--transition);
    display: flex; align-items: center; justify-content: center;
    background: var(--bg-light);
}
.thumb-item.active { border-color: var(--primary); }
.thumb-item img { width: 100%; height: 100%; object-fit: contain; padding: 4px; }

.product-info h1 { font-size: 26px; font-weight: 800; color: var(--text); margin-bottom: 10px; }
.product-info .product-code { font-size: 13px; color: var(--text-muted); margin-bottom: 16px; }
.product-info .product-code span { color: var(--primary); font-weight: 600; }
.product-desc { font-size: 14px; color: var(--text-muted); line-height: 1.7; margin-bottom: 20px; }
.product-specs-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 24px;
    font-size: 14px;
}
.product-specs-table th,
.product-specs-table td {
    padding: 10px 14px;
    border: 1px solid var(--border);
    text-align: left;
}
.product-specs-table th {
    background: var(--primary-lt);
    color: var(--primary);
    font-weight: 600;
    width: 40%;
}
.product-specs-table tr:nth-child(even) td { background: var(--bg-light); }

.product-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.btn-inquiry-lg {
    flex: 1;
    min-width: 140px;
    padding: 14px 24px;
    background: var(--accent);
    color: #fff;
    border: none;
    border-radius: 30px;
    font-size: 15px;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition);
    display: flex; align-items: center; justify-content: center; gap: 8px;
}
.btn-inquiry-lg:hover { background: var(--accent-dk); }
.btn-download {
    padding: 14px 24px;
    border: 2px solid var(--primary);
    color: var(--primary);
    background: transparent;
    border-radius: 30px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: flex; align-items: center; gap: 8px;
}
.btn-download:hover { background: var(--primary); color: #fff; }

/* Tabs */
.product-tabs { margin-top: 50px; }
.tab-nav {
    display: flex;
    border-bottom: 2px solid var(--border);
    margin-bottom: 24px;
    gap: 0;
}
.tab-btn {
    padding: 12px 22px;
    background: none;
    border: none;
    border-bottom: 3px solid transparent;
    margin-bottom: -2px;
    font-size: 15px;
    font-weight: 600;
    color: var(--text-muted);
    cursor: pointer;
    transition: var(--transition);
}
.tab-btn.active { color: var(--primary); border-bottom-color: var(--primary); }
.tab-panel { display: none; }
.tab-panel.active { display: block; }
.tab-panel table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}
.tab-panel table th,
.tab-panel table td {
    padding: 10px 14px;
    border: 1px solid var(--border);
}
.tab-panel table th { background: var(--primary-lt); color: var(--primary); }
.tab-panel table tr:nth-child(even) td { background: var(--bg-light); }

/* =====================================================
   CONTACT PAGE
   ===================================================== */
.contact-layout {
    display: grid;
    grid-template-columns: 1fr 1.4fr;
    gap: 36px;
    align-items: start;
}
.contact-info-card {
    background: var(--primary);
    color: #fff;
    border-radius: var(--radius-lg);
    padding: 36px 28px;
}
.contact-info-card h3 { font-size: 22px; font-weight: 800; margin-bottom: 10px; }
.contact-info-card > p { opacity: .85; font-size: 14px; margin-bottom: 28px; }
.contact-info-list { display: flex; flex-direction: column; gap: 18px; margin-bottom: 28px; }
.contact-info-item { display: flex; gap: 14px; align-items: flex-start; }
.contact-info-item .ci-icon {
    width: 44px; height: 44px; flex-shrink: 0;
    background: rgba(255,255,255,.15);
    border-radius: 12px;
    display: flex; align-items: center; justify-content: center;
    font-size: 17px;
}
.contact-info-item h5 { font-size: 13px; opacity: .75; margin-bottom: 3px; }
.contact-info-item p  { font-size: 15px; font-weight: 600; }
.contact-info-item a  { color: #fff; }

.contact-form-card {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 36px 28px;
    box-shadow: var(--shadow);
}
.contact-form-card h3 { font-size: 22px; font-weight: 800; color: var(--primary); margin-bottom: 24px; }
.form-group { margin-bottom: 18px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group label { display: block; font-size: 13px; font-weight: 600; color: var(--text); margin-bottom: 6px; }
.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 10px 14px;
    border: 1.5px solid var(--border);
    border-radius: var(--radius);
    font-size: 14px;
    font-family: inherit;
    color: var(--text);
    outline: none;
    transition: var(--transition);
    background: #fff;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(0,87,168,.1); }
.form-group textarea { resize: vertical; min-height: 110px; }
.btn-submit {
    width: 100%;
    padding: 13px;
    background: var(--primary);
    color: #fff;
    border: none;
    border-radius: var(--radius);
    font-size: 15px;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition);
    display: flex; align-items: center; justify-content: center; gap: 8px;
}
.btn-submit:hover { background: var(--primary-dk); }

/* Map */
.map-section { padding: 0 0 60px; }
.map-wrap { border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--border); }
.map-wrap iframe { width: 100%; height: 380px; display: block; border: none; }

/* =====================================================
   PROJECTS PAGE
   ===================================================== */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.project-card {
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--border);
    transition: var(--transition);
}
.project-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
.project-card-img {
    height: 220px;
    overflow: hidden;
    background: var(--primary-lt);
    display: flex; align-items: center; justify-content: center;
    position: relative;
}
.project-card-img img { width: 100%; height: 100%; object-fit: cover; transition: var(--transition); }
.project-card:hover .project-card-img img { transform: scale(1.05); }
.project-card-img .placeholder-icon { font-size: 60px; color: var(--primary); opacity: .3; }
.project-tag {
    position: absolute;
    top: 12px; right: 12px;
    background: var(--primary);
    color: #fff;
    font-size: 11px;
    font-weight: 700;
    padding: 4px 10px;
    border-radius: 20px;
}
.project-card-body { padding: 18px; background: #fff; }
.project-card-body h3 { font-size: 16px; font-weight: 700; margin-bottom: 8px; }
.project-card-body h3 a:hover { color: var(--primary); }
.project-location { font-size: 13px; color: var(--text-muted); display: flex; align-items: center; gap: 5px; }
.project-location i { color: var(--primary); }

/* =====================================================
   PAGINATION
   ===================================================== */
.pagination {
    display: flex;
    justify-content: center;
    gap: 6px;
    margin-top: 36px;
    flex-wrap: wrap;
}
.page-link {
    width: 38px; height: 38px;
    display: flex; align-items: center; justify-content: center;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 14px;
    font-weight: 600;
    color: var(--text);
    transition: var(--transition);
    text-decoration: none;
}
.page-link:hover, .page-link.active {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}
.page-link.dots { cursor: default; border: none; }

/* =====================================================
   ALERTS / NOTIFICATIONS
   ===================================================== */
.alert {
    padding: 12px 16px;
    border-radius: var(--radius);
    margin-bottom: 16px;
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 10px;
}
.alert-success { background: #d4edda; color: #155724; border: 1px solid #c3e6cb; }
.alert-error   { background: #f8d7da; color: #721c24; border: 1px solid #f5c6cb; }
.alert-info    { background: #d1ecf1; color: #0c5460; border: 1px solid #bee5eb; }

/* Modal */
.modal-overlay {
    position: fixed; inset: 0;
    background: rgba(0,0,0,.5);
    z-index: 99999;
    display: flex; align-items: center; justify-content: center;
    opacity: 0; visibility: hidden; transition: var(--transition);
}
.modal-overlay.open { opacity: 1; visibility: visible; }
.modal {
    background: #fff;
    border-radius: var(--radius-lg);
    padding: 36px 32px;
    max-width: 520px;
    width: 90%;
    transform: translateY(20px);
    transition: var(--transition);
}
.modal-overlay.open .modal { transform: translateY(0); }
.modal-close {
    float: right;
    background: none;
    border: none;
    font-size: 20px;
    cursor: pointer;
    color: var(--text-muted);
    line-height: 1;
}
.modal-close:hover { color: var(--text); }
.modal h3 { font-size: 20px; font-weight: 800; color: var(--primary); margin-bottom: 20px; }

/* =====================================================
   ADMIN STYLES
   ===================================================== */
.admin-body { background: #f0f2f5; }
.admin-sidebar {
    width: 240px;
    background: #0d1a2d;
    min-height: 100vh;
    position: fixed;
    top: 0; left: 0;
    z-index: 100;
    padding-top: 70px;
}
.admin-content { margin-left: 240px; padding: 30px; padding-top: 90px; }
.admin-header {
    position: fixed;
    top: 0; left: 0; right: 0;
    height: 64px;
    background: var(--primary);
    z-index: 200;
    display: flex;
    align-items: center;
    padding: 0 24px;
    justify-content: space-between;
    box-shadow: var(--shadow);
}
.admin-header .admin-logo { color: #fff; font-size: 18px; font-weight: 800; display: flex; align-items: center; gap: 8px; }
.admin-header .admin-user { color: rgba(255,255,255,.8); font-size: 14px; display: flex; align-items: center; gap: 12px; }
.admin-header .admin-user a { color: rgba(255,255,255,.8); }
.admin-header .admin-user a:hover { color: #fff; }
.admin-nav a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 20px;
    color: #889;
    font-size: 14px;
    font-weight: 500;
    transition: var(--transition);
}
.admin-nav a:hover, .admin-nav a.active {
    background: rgba(255,255,255,.08);
    color: #fff;
    border-right: 3px solid var(--accent);
}
.admin-nav a i { width: 18px; text-align: center; }
.admin-nav .nav-section { padding: 14px 20px 6px; font-size: 11px; font-weight: 700; color: #557; text-transform: uppercase; letter-spacing: 1px; }

.admin-card { background: #fff; border-radius: var(--radius-lg); padding: 24px; box-shadow: var(--shadow); margin-bottom: 24px; }
.admin-card h2 { font-size: 18px; font-weight: 700; color: var(--text); margin-bottom: 20px; padding-bottom: 12px; border-bottom: 1px solid var(--border); }
.stats-cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-bottom: 28px; }
.stat-card {
    background: #fff;
    border-radius: var(--radius-lg);
    padding: 20px;
    box-shadow: var(--shadow);
    display: flex;
    align-items: center;
    gap: 16px;
}
.stat-card .sc-icon {
    width: 52px; height: 52px;
    border-radius: 14px;
    display: flex; align-items: center; justify-content: center;
    font-size: 22px;
    flex-shrink: 0;
}
.stat-card .sc-icon.blue  { background: #e8f1fb; color: var(--primary); }
.stat-card .sc-icon.green { background: #d4edda; color: #28a745; }
.stat-card .sc-icon.amber { background: #fff3cd; color: #f5a623; }
.stat-card .sc-icon.red   { background: #f8d7da; color: #dc3545; }
.stat-card h3 { font-size: 26px; font-weight: 800; color: var(--text); }
.stat-card p  { font-size: 13px; color: var(--text-muted); }

.admin-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.admin-table th { background: var(--bg-light); padding: 12px 14px; text-align: left; font-weight: 700; color: var(--text); border-bottom: 2px solid var(--border); }
.admin-table td { padding: 12px 14px; border-bottom: 1px solid var(--border); }
.admin-table tr:hover td { background: var(--bg-light); }
.badge { display: inline-flex; align-items: center; padding: 3px 10px; border-radius: 20px; font-size: 12px; font-weight: 600; }
.badge-success { background: #d4edda; color: #155724; }
.badge-warning { background: #fff3cd; color: #856404; }
.badge-danger  { background: #f8d7da; color: #721c24; }
.btn-sm { padding: 5px 12px; font-size: 12px; font-weight: 600; border-radius: var(--radius); border: none; cursor: pointer; transition: var(--transition); }
.btn-primary-sm { background: var(--primary); color: #fff; }
.btn-danger-sm  { background: #dc3545; color: #fff; }
.btn-sm:hover { opacity: .85; }

/* =====================================================
   RESPONSIVE
   ===================================================== */
@media (max-width: 1024px) {
    .cat-grid       { grid-template-columns: repeat(3, 1fr); }
    .products-grid  { grid-template-columns: repeat(3, 1fr); }
    .whyus-grid     { grid-template-columns: repeat(2, 1fr); }
    .support-grid   { grid-template-columns: repeat(3, 1fr); }
    .footer-grid    { grid-template-columns: 1fr 1fr; }
    .stats-grid     { grid-template-columns: repeat(2, 1fr); }
    .mega-grid      { grid-template-columns: repeat(3, 1fr); }
    .stats-cards    { grid-template-columns: repeat(2, 1fr); }
    .products-layout { grid-template-columns: 220px 1fr; }
}

@media (max-width: 768px) {
    .topbar-left .separator,
    .topbar-left a:last-child { display: none; }
    .header-search { display: none; }
    .action-hotline { display: none; }
    .hamburger { display: flex; margin-left: auto; }
    .navbar { display: none; }
    .navbar.open { display: block; }
    .nav-menu { flex-direction: column; }
    .nav-menu > li > a { padding: 12px 16px; }
    .dropdown-mega { position: static; transform: none; min-width: unset; opacity: 1; visibility: visible; border: none; box-shadow: none; }
    .has-dropdown .dropdown-mega { display: none; }
    .has-dropdown.open .dropdown-mega { display: block; }
    .mega-grid { grid-template-columns: 1fr 1fr; padding: 10px 16px; }
    .slide-img, .slide-placeholder { height: 300px; }
    .slide-content { padding: 0 24px; }
    .slide-text h1, .slide-text h2 { font-size: 22px; }
    .slide-text p { font-size: 13px; }
    .cat-grid { grid-template-columns: repeat(2, 1fr); }
    .products-grid { grid-template-columns: repeat(2, 1fr); }
    .whyus-grid { grid-template-columns: 1fr; }
    .support-grid { grid-template-columns: repeat(2, 1fr); }
    .news-grid { grid-template-columns: 1fr; }
    .projects-grid { grid-template-columns: 1fr; }
    .values-grid { grid-template-columns: 1fr; }
    .about-grid { grid-template-columns: 1fr; }
    .contact-layout { grid-template-columns: 1fr; }
    .product-detail-grid { grid-template-columns: 1fr; }
    .products-layout { grid-template-columns: 1fr; }
    .sidebar { position: static; }
    .form-row { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
    .footer-bottom-inner { flex-direction: column; gap: 6px; text-align: center; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .stats-cards { grid-template-columns: 1fr 1fr; }
    .page-hero h1 { font-size: 24px; }
    .admin-sidebar { display: none; }
    .admin-content { margin-left: 0; }
}

@media (max-width: 480px) {
    .products-grid { grid-template-columns: 1fr; }
    .cat-grid { grid-template-columns: 1fr 1fr; }
    .support-grid { grid-template-columns: 1fr; }
    .stats-cards { grid-template-columns: 1fr; }
    .stats-grid { grid-template-columns: 1fr 1fr; }
    .cta-buttons { flex-direction: column; align-items: center; }
}