:root {
    --black: #ffffff;
    --white: #ffffff;
    --body-text: #0f172a;
    --dark: #f8fafc;
    --dark2: #ffffff;
    --dark3: #f1f5f9;
    --brand-red: #0068ff;
    --brand-red-hover: #0050d2;
    --brand-blue-light: #eef4ff;
    --yellow: #ff9f0a;
    --orange: #f76707;
    --amber: #ff9f0a;
    --gray: #64748b;
    --light-gray: #e2e8f0;
    --accent-glow: rgba(0, 104, 255, 0.1);
    --admin-bg: #f8fafc;
    --admin-surface: #ffffff;
    --admin-border: #e2e8f0;
    --admin-yellow: #ff9f0a;
  }
  *, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }
  html { scroll-behavior:smooth; }
  body, input, select, textarea, button {
    font-family: 'Inter', sans-serif !important;
  }
  h1, h2, .logo-text, .section-title, .product-card-name, .category-ribbon, .admin-logo-text, .admin-page-title, .login-logo, .login-title, .detail-modal-title {
    font-family: 'Oswald', sans-serif !important;
    font-weight: 700 !important;
    letter-spacing: 1px !important;
  }
  h3, h4, h5, h6, .product-price, .step-num, .step h4, .stat-num, .stat-label, .btn-primary, .btn-secondary, .filter-btn, .read-more-btn, .nav-cta, .admin-nav-item, .dash-card-num, .admin-table-title, th, .btn-add, .btn-sm, .badge-status, .modal-title, .form-label, .btn-cancel, .btn-save, .social-name, .login-btn, .nav-links a {
    font-family: 'Barlow Condensed', sans-serif !important;
    font-weight: 700 !important;
    letter-spacing: 1px !important;
  }
  body { background:var(--black); color:var(--white); font-weight:400; overflow-x:hidden; }
  .skip-link {
    position: absolute;
    left: -9999px;
    top: 0;
    background: var(--brand-red);
    color: #fff;
    padding: 12px 16px;
    z-index: 1200;
    border-radius: 0 0 8px 0;
  }
  .skip-link:focus {
    left: 0;
  }
  
  /* NOISE BACKGROUND */
  body::before { 
    content:''; 
    position:fixed; 
    inset:0; 
    background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.04'/%3E%3C/svg%3E"); 
    pointer-events:none; 
    z-index:999; 
    opacity:0.4; 
  }

  .faq-section {
    padding: 80px 48px;
    background: var(--dark);
    border-top: 1px solid var(--light-gray);
  }
  .faq-list {
    display: grid;
    gap: 20px;
    margin-top: 24px;
  }
  .faq-item {
    background: var(--admin-surface);
    border: 1px solid var(--admin-border);
    border-radius: 12px;
    padding: 24px;
    color: #111827;
    box-shadow: 0 10px 25px rgba(15, 23, 42, 0.06);
  }
  .faq-item h3 {
    font-size: 20px;
    margin-bottom: 8px;
    color: #0f172a;
  }
  .faq-item p {
    line-height: 1.7;
    color: #475569;
  }

  /* ─── TOP BAR ─── */
  .top-bar {
    background: #000;
    border-bottom: 1px solid rgba(255,255,255,0.05);
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 48px;
    font-size: 12px;
    color: var(--gray);
    position: relative;
    z-index: 101;
  }
  .top-bar-marquee {
    display: flex;
    overflow: hidden;
    white-space: nowrap;
    width: 60%;
  }
  .top-bar-marquee span {
    display: inline-block;
    padding-left: 100%;
    animation: marquee 25s linear infinite;
    color: var(--white);
  }
  .top-bar-marquee span strong {
    color: var(--brand-red);
  }
  @keyframes marquee {
    0% { transform: translate3d(0, 0, 0); }
    100% { transform: translate3d(-100%, 0, 0); }
  }
  .top-bar-right {
    display: flex;
    gap: 20px;
  }
  .top-bar-right span {
    display: flex;
    align-items: center;
    gap: 6px;
  }

  /* ─── HEADER ─── */
  .main-header {
    background: var(--black);
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 48px;
    border-bottom: 1px solid rgba(255,255,255,0.03);
    position: relative;
    z-index: 101;
  }
  .header-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
  }
  .logo-text {
    font-family: 'Oswald', sans-serif;
    font-size: 44px;
    letter-spacing: 2px;
    color: var(--white);
    line-height: 1;
  }
  .logo-text span {
    color: var(--brand-red);
  }
  .logo-dot {
    width: 18px;
    height: 18px;
    background: var(--brand-red);
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
  }
  .header-info {
    display: flex;
    gap: 40px;
  }
  .info-block {
    display: flex;
    align-items: center;
    gap: 12px;
  }
  .info-block i {
    font-size: 24px;
    color: var(--brand-red);
  }
  .info-block span {
    font-size: 13px;
    color: var(--gray);
    max-width: 250px;
    line-height: 1.4;
  }
  .header-right {
    display: flex;
    align-items: center;
    gap: 24px;
  }
  .header-hotline {
    background: var(--brand-red);
    color: var(--white);
    padding: 10px 20px;
    border-radius: 4px;
    text-decoration: none;
    font-family: 'Barlow Condensed', sans-serif;
    font-size: 15px;
    font-weight: 700;
    letter-spacing: 1px;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: background 0.2s;
  }
  .header-hotline:hover {
    background: var(--brand-red-hover);
  }
  .cart-btn {
    background: var(--dark2);
    border: 1px solid var(--light-gray);
    color: var(--white);
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    position: relative;
    transition: border-color 0.2s, background 0.2s;
  }
  .cart-btn:hover {
    border-color: var(--brand-red);
    background: rgba(211, 28, 28, 0.05);
  }
  .cart-btn i {
    font-size: 20px;
  }
  .cart-count {
    position: absolute;
    top: -5px;
    right: -5px;
    background: var(--brand-red);
    color: var(--white);
    font-size: 11px;
    font-weight: 700;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
  }

  /* ─── STICKY NAVBAR ─── */
  #sticky-nav { 
    position: sticky; 
    top: 0; 
    left: 0; 
    right: 0; 
    z-index: 100; 
    display: flex; 
    align-items: center; 
    justify-content: space-between; 
    padding: 0 48px; 
    height: 56px; 
    background: rgba(10,10,10,0.95); 
    backdrop-filter: blur(12px); 
    border-bottom: 1px solid rgba(255,255,255,0.05); 
  }
  .nav-links { display: flex; gap: 32px; list-style: none; }
  .nav-links a { 
    font-family: 'Barlow Condensed', sans-serif; 
    font-size: 13px; 
    font-weight: 700; 
    letter-spacing: 1.5px; 
    text-transform: uppercase; 
    color: var(--gray); 
    text-decoration: none; 
    transition: color .2s; 
    cursor: pointer; 
  }
  .nav-links a:hover { color: var(--brand-red); }
  .nav-links a.active { color: var(--brand-red); }
  .nav-cta { 
    background: transparent; 
    border: 1px solid rgba(255,255,255,0.15); 
    color: var(--gray) !important; 
    padding: 6px 16px; 
    font-size: 11px !important; 
    letter-spacing: 1.5px; 
    transition: all .2s !important; 
  }
  .nav-cta:hover { 
    border-color: var(--brand-red); 
    color: var(--white) !important; 
    background: rgba(211, 28, 28, 0.1); 
  }
  .nav-social { display: flex; gap: 12px; align-items: center; }
  .nav-social a { 
    color: var(--gray); 
    font-size: 16px; 
    text-decoration: none; 
    transition: color .2s; 
    display: flex; 
    align-items: center; 
  }
  .nav-social a:hover { color: var(--brand-red); }
  
  /* ─── HERO SLIDER ─── */
  .hero-slider {
    position: relative;
    height: 70vh;
    min-height: 480px;
    overflow: hidden;
  }
  .slide {
    position: absolute;
    inset: 0;
    opacity: 0;
    transition: opacity 1s ease-in-out;
    display: flex;
    align-items: center;
    padding: 0 80px;
  }
  .slide.active {
    opacity: 1;
    z-index: 1;
  }
  .slide-bg {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    z-index: -1;
  }
  .slide-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, rgba(10,10,10,0.9) 0%, rgba(10,10,10,0.5) 50%, rgba(10,10,10,0.2) 100%);
    z-index: -1;
  }
  .slide-content {
    max-width: 650px;
  }
  .slide-content .section-tag {
    margin-bottom: 24px;
  }
  .slide-title {
    font-family: 'Oswald', sans-serif;
    font-size: clamp(48px, 6vw, 96px);
    line-height: 1.15;
    letter-spacing: 2px;
    color: var(--white);
    margin-bottom: 20px;
  }
  .slide-title span {
    color: var(--brand-red);
  }
  .slide-desc {
    font-size: 18px;
    color: var(--gray);
    margin-bottom: 30px;
    line-height: 1.6;
  }
  .slider-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 2;
    background: rgba(0,0,0,0.5);
    border: 1px solid rgba(255,255,255,0.1);
    color: var(--white);
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s;
  }
  .slider-btn:hover {
    background: var(--brand-red);
    border-color: var(--brand-red);
  }
  .slider-btn-prev { left: 20px; }
  .slider-btn-next { right: 20px; }
  .slider-dots {
    position: absolute;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    display: flex;
    gap: 8px;
  }
  .slider-dot {
    width: 8px;
    height: 8px;
    background: rgba(255,255,255,0.3);
    border-radius: 50%;
    cursor: pointer;
  }
  .slider-dot.active {
    background: var(--brand-red);
    width: 24px;
    border-radius: 4px;
  }

  /* ─── RED INTRODUCTION SECTION ─── */
  .intro-section {
    background: var(--brand-red);
    color: var(--white);
    padding: 80px 48px;
    position: relative;
    overflow: hidden;
  }
  .intro-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 2;
  }
  .intro-content h1 {
    font-family: 'Oswald', sans-serif;
    font-size: 48px;
    letter-spacing: 2px;
    line-height: 1.1;
    margin-bottom: 24px;
  }
  .intro-content p {
    font-size: 16px;
    line-height: 1.8;
    margin-bottom: 24px;
    opacity: 0.9;
  }
  .intro-advantages {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
  }
  .advantage-card {
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 24px;
    border-radius: 4px;
  }
  .advantage-card i {
    font-size: 32px;
    color: var(--yellow);
    margin-bottom: 16px;
    display: block;
  }
  .advantage-card h4 {
    font-family: 'Barlow Condensed', sans-serif;
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 10px;
    text-transform: uppercase;
  }
  .advantage-card p {
    font-size: 13px;
    line-height: 1.6;
    opacity: 0.8;
  }

  /* ─── STATS BAR ─── */
  .stats-bar { 
    background: var(--dark2); 
    border-bottom: 1px solid var(--light-gray); 
    padding: 40px 48px; 
    display: grid; 
    grid-template-columns: repeat(4, 1fr); 
    gap: 24px; 
  }
  .stat { text-align: center; }
  .stat-num { font-family: 'Oswald', sans-serif; font-size: 52px; color: var(--brand-red); line-height: 1; }
  .stat-label { font-family: 'Barlow Condensed', sans-serif; font-size: 11px; letter-spacing: 3px; text-transform: uppercase; color: var(--gray); margin-top: 4px; }

  /* ─── PRODUCTS SECTION ─── */
  .products-section {
    padding: 80px 48px;
  }
  .section-tag { 
    font-family: 'Barlow Condensed', sans-serif; 
    font-size: 11px; 
    font-weight: 700; 
    letter-spacing: 4px; 
    text-transform: uppercase; 
    color: var(--brand-red); 
    margin-bottom: 16px; 
    display: flex; 
    align-items: center; 
    gap: 10px; 
  }
  .section-tag::before { content:''; display:block; width:24px; height:1px; background:var(--brand-red); }
  .section-title { font-family: 'Oswald', sans-serif; font-size: clamp(40px, 5vw, 72px); line-height: 0.95; letter-spacing: 1px; color: var(--white); margin-bottom: 20px; position: relative; display: inline-block; }
  .section-title::after { content:''; position:absolute; left:0; bottom:-10px; width:72px; height:3px; border-radius:999px; background: linear-gradient(90deg, var(--brand-red), rgba(0,104,255,0.25)); }
  .section-sub { font-size: 16px; color: var(--gray); max-width: 680px; line-height: 1.8; margin-bottom: 40px; }
  
  .product-filters { display:flex; gap:10px; margin-bottom: 40px; flex-wrap:wrap; }
  .filter-btn { 
    font-family: 'Barlow Condensed', sans-serif; 
    font-size: 12px; 
    font-weight: 700; 
    letter-spacing: 2px; 
    text-transform: uppercase; 
    padding: 8px 20px; 
    border: 1px solid rgba(255,255,255,.1); 
    color: var(--gray); 
    background: transparent; 
    cursor: pointer; 
    transition: all .2s; 
    border-radius: 999px;
  }
  .filter-btn.active, .filter-btn:hover { border-color: var(--brand-red); color: var(--white); background: linear-gradient(135deg, var(--brand-red), #1d4ed8); box-shadow: 0 10px 24px rgba(0,104,255,0.2); }
  
  .grid-container {
    display: flex;
    flex-direction: column;
    gap: 60px;
  }
  .grid-header {
    font-family: 'Barlow Condensed', sans-serif;
    font-size: 18px;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    border-bottom: 1px solid rgba(255,255,255,0.05);
    padding-bottom: 12px;
    color: var(--brand-red);
  }
  
  .products-grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
  .products-grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
  
  .product-card { 
    background: var(--dark2); 
    border: 1px solid rgba(255,255,255,0.08); 
    position: relative; 
    overflow: hidden; 
    transition: all .3s; 
    display: flex;
    flex-direction: column;
    height: 100%;
    border-radius: 22px;
    box-shadow: 0 18px 40px rgba(15, 23, 42, 0.06);
  }
  .product-card:hover { border-color: rgba(0, 104, 255, 0.35); transform: translateY(-8px) scale(1.01); box-shadow: 0 28px 60px rgba(15, 23, 42, 0.12); }
  .product-img-wrapper {
    position: relative;
    width: 100%;
    height: 240px;
    background: linear-gradient(135deg, #f8fbff, #e8f1ff);
  }
  .product-img { width:100%; height:100%; object-fit:cover; display:block; }
  .product-img-placeholder { 
    width:100%; 
    height:100%; 
    display:flex; 
    flex-direction: column;
    align-items:center; 
    justify-content:center; 
    background: linear-gradient(135deg, #111, #222); 
    font-size: 40px; 
    color: rgba(255, 255, 255, 0.05); 
    gap: 12px;
  }
  .product-img-placeholder span {
    font-size: 11px;
    text-transform: uppercase;
    font-family: 'Barlow Condensed', sans-serif;
    letter-spacing: 1px;
    color: var(--gray);
  }
  .product-badge { 
    position: absolute; 
    top: 16px; 
    left: 16px; 
    background: var(--brand-red); 
    color: var(--white); 
    font-family: 'Barlow Condensed', sans-serif; 
    font-size: 10px; 
    font-weight: 900; 
    letter-spacing: 2px; 
    text-transform: uppercase; 
    padding: 4px 12px; 
    z-index: 2;
  }
  .product-card-body { padding: 24px; flex-grow: 1; display: flex; flex-direction: column; }
  .product-card-cat { font-family: 'Barlow Condensed', sans-serif; font-size: 10px; letter-spacing: 3px; text-transform: uppercase; color: var(--brand-red); margin-bottom: 8px; }
  .product-card-name { font-family: 'Oswald', sans-serif; font-size: 24px; letter-spacing: 1px; color: var(--white); margin-bottom: 8px; line-height: 1.2; }
  .product-card-desc { font-size: 13px; color: var(--gray); line-height: 1.6; margin-bottom: 16px; flex-grow: 1; }
  .product-card-footer { display: flex; align-items: center; justify-content: space-between; border-top: 1px solid rgba(255,255,255,0.05); padding-top: 16px; margin-top: auto; }
  .product-price { font-family: 'Barlow Condensed', sans-serif; font-size: 18px; font-weight: 700; color: var(--white); }
  .add-to-cart-btn {
    background: var(--brand-red);
    color: var(--white);
    border: none;
    width: 36px;
    height: 36px;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background 0.2s;
  }
  .add-to-cart-btn:hover {
    background: var(--brand-red-hover);
  }
  .add-to-cart-btn i {
    font-size: 18px;
  }

  /* ─── PROCESS SECTION ─── */
  .process-section { padding: 80px 48px; background: var(--dark2); border-top: 1px solid rgba(255,255,255,0.03); }
  .process-steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-top: 40px; }
  .step { background: var(--black); padding: 32px 24px; border: 1px solid rgba(255,255,255,0.03); position: relative; overflow: hidden; }
  .step::before { content:''; position:absolute; top:0; left:0; right:0; height:2px; background: linear-gradient(90deg, var(--brand-red), transparent); }
  .step-num { font-family: 'Oswald', sans-serif; font-size: 60px; color: rgba(211, 28, 28, 0.1); line-height: 1; margin-bottom: 16px; }
  .step h4 { font-family: 'Barlow Condensed', sans-serif; font-size: 16px; font-weight: 700; letter-spacing: 1px; color: var(--white); margin-bottom: 10px; text-transform: uppercase; }
  .step p { font-size: 13px; color: var(--gray); line-height: 1.6; }

  /* ─── PARTNERS LOGO CAROUSEL ─── */
  .partners-section {
    padding: 60px 48px;
    background: var(--black);
    border-top: 1px solid rgba(255,255,255,0.03);
    overflow: hidden;
  }
  .partners-title {
    font-family: 'Barlow Condensed', sans-serif;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--gray);
    text-align: center;
    margin-bottom: 30px;
  }
  .partners-track {
    display: flex;
    gap: 60px;
    width: max-content;
    animation: scrollPartners 20s linear infinite;
  }
  .partner-logo {
    font-family: 'Oswald', sans-serif;
    font-size: 24px;
    color: rgba(255,255,255,0.15);
    letter-spacing: 2px;
    display: flex;
    align-items: center;
    gap: 8px;
    user-select: none;
  }
  .partner-logo i {
    font-size: 28px;
  }
  @keyframes scrollPartners {
    0% { transform: translateX(0); }
    100% { transform: translateX(calc(-50% - 30px)); }
  }

  /* ─── NEWS & PROJECTS SECTION ─── */
  .news-section { padding: 80px 48px; }
  .posts-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
  .post-card { background: var(--dark2); border: 1px solid rgba(255,255,255,0.04); overflow: hidden; display: flex; flex-direction: column; transition: all .3s; }
  .post-card:hover { border-color: rgba(211, 28, 28, 0.4); transform: translateY(-4px); }
  .post-img-wrapper {
    position: relative;
    width: 100%;
    height: 200px;
    background: #1a1a1a;
  }
  .post-img { width: 100%; height: 100%; object-fit: cover; display: block; }
  .post-img-placeholder {
    width: 100%; height: 100%; display: flex; align-items: center; justify-content: center;
    background: linear-gradient(135deg, #111, #222); font-size: 40px; color: rgba(255,255,255,0.05);
  }
  .post-body { padding: 24px; display: flex; flex-direction: column; flex-grow: 1; }
  .post-date { font-size: 11px; letter-spacing: 2px; color: var(--brand-red); text-transform: uppercase; font-family: 'Barlow Condensed', sans-serif; margin-bottom: 8px; }
  .post-title { font-family: 'Oswald', sans-serif; font-size: 20px; color: var(--white); margin-bottom: 12px; line-height: 1.3; }
  .post-excerpt { font-size: 13px; color: var(--gray); line-height: 1.6; margin-bottom: 20px; flex-grow: 1; }
  .read-more-btn {
    background: transparent;
    border: 1px solid var(--light-gray);
    color: var(--white);
    padding: 10px 18px;
    font-family: 'Barlow Condensed', sans-serif;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: uppercase;
    cursor: pointer;
    transition: all 0.2s;
    width: fit-content;
  }
  .read-more-btn:hover {
    border-color: var(--brand-red);
    background: var(--brand-red);
  }

  /* ─── CONTACT SECTION ─── */
  .contact-section { padding: 80px 48px; background: var(--dark2); border-top: 1px solid rgba(255,255,255,0.03); }
  .contact-grid { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 60px; }
  .contact-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
  }
  .form-row-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }
  .contact-form input, .contact-form textarea, .contact-form select { 
    width: 100%; background: var(--black); border: 1px solid var(--light-gray); 
    color: var(--white); font-family: 'Barlow', sans-serif; font-size: 14px; 
    padding: 14px 18px; outline: none; transition: border .2s; 
  }
  .contact-form input:focus, .contact-form textarea:focus, .contact-form select:focus { border-color: var(--brand-red); }
  .contact-form textarea { height: 140px; resize: vertical; }
  .submit-btn {
    background: var(--brand-red);
    color: var(--white);
    border: none;
    padding: 16px 36px;
    font-family: 'Barlow Condensed', sans-serif;
    font-size: 14px;
    font-weight: 900;
    letter-spacing: 2px;
    text-transform: uppercase;
    cursor: pointer;
    transition: background 0.2s;
    width: fit-content;
  }
  .submit-btn:hover { background: var(--brand-red-hover); }
  
  .contact-info-list {
    display: flex;
    flex-direction: column;
    gap: 32px;
  }
  .contact-info-item { display: flex; gap: 20px; align-items: flex-start; }
  .ci-icon { 
    width: 48px; height: 48px; background: rgba(211, 28, 28, 0.1); 
    border: 1px solid rgba(211, 28, 28, 0.2); display: flex; 
    align-items: center; justify-content: center; font-size: 20px; 
    color: var(--brand-red); flex-shrink: 0; 
  }
  .ci-label { font-family: 'Barlow Condensed', sans-serif; font-size: 11px; letter-spacing: 2px; text-transform: uppercase; color: var(--brand-red); margin-bottom: 4px; }
  .ci-value { font-size: 15px; color: var(--white); line-height: 1.5; }
  
  .social-links { display: flex; gap: 12px; margin-top: 16px; }
  .social-link { 
    width: 44px; height: 44px; background: var(--black); border: 1px solid var(--light-gray); 
    display: flex; align-items: center; justify-content: center; text-decoration: none; 
    color: var(--gray); font-size: 20px; transition: all .2s; 
  }
  .social-link:hover { border-color: var(--brand-red); color: var(--white); background: rgba(211, 28, 28, 0.05); }

  /* ─── MAP & SOCIAL EMBEDS ─── */
  .embed-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    background: var(--black);
    border-top: 1px solid rgba(255,255,255,0.03);
  }
  .embed-map {
    height: 400px;
    width: 100%;
    border: none;
    filter: grayscale(1) invert(0.9) contrast(1.2);
  }
  .embed-facebook {
    height: 400px;
    background: var(--dark2);
    border-left: 1px solid rgba(255,255,255,0.03);
    display: flex;
    flex-direction: column;
    overflow: hidden;
  }
  .fb-header {
    background: #1877f2;
    padding: 16px 24px;
    display: flex;
    align-items: center;
    gap: 12px;
    color: #fff;
  }
  .fb-avatar {
    width: 40px; height: 40px; border-radius: 50%; background: #fff;
    display: flex; align-items: center; justify-content: center;
    color: #1877f2; font-family: 'Oswald', sans-serif; font-size: 18px;
  }
  .fb-name h4 { font-size: 14px; font-weight: 600; }
  .fb-name p { font-size: 11px; opacity: 0.8; }
  .fb-body {
    flex-grow: 1;
    padding: 24px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 16px;
  }
  .fb-post {
    background: var(--black);
    border: 1px solid rgba(255,255,255,0.03);
    padding: 16px;
    border-radius: 4px;
  }
  .fb-post-header { display: flex; align-items: center; gap: 8px; margin-bottom: 12px; font-size: 12px; color: var(--gray); }
  .fb-post-text { font-size: 13px; line-height: 1.5; color: var(--white); }

  /* ─── FOOTER ─── */
  footer { background: var(--black); border-top: 1px solid rgba(255,255,255,0.05); padding: 60px 48px 32px; }
  .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 60px; margin-bottom: 48px; }
  .footer-brand p { font-size: 14px; color: var(--gray); line-height: 1.7; margin-top: 16px; }
  .footer-map {
    margin-top: 18px;
    border-radius: 14px;
    overflow: hidden;
    border: 1px solid rgba(255,255,255,0.08);
    box-shadow: 0 10px 30px rgba(0,0,0,0.16);
  }
  .footer-map iframe {
    width: 100%;
    height: 180px;
    border: 0;
    display: block;
  }
  .footer-col h5 { font-family: 'Barlow Condensed', sans-serif; font-size: 11px; font-weight: 700; letter-spacing: 3px; text-transform: uppercase; color: var(--brand-red); margin-bottom: 20px; }
  .footer-col ul { list-style: none; }
  .footer-col ul li { margin-bottom: 10px; }
  .footer-col ul li a { font-size: 14px; color: var(--gray); text-decoration: none; transition: color .2s; cursor: pointer; }
  .footer-col ul li a:hover { color: var(--white); }
  .footer-bottom { border-top: 1px solid rgba(255,255,255,0.03); padding-top: 24px; display: flex; justify-content: space-between; }
  .footer-bottom p { font-size: 13px; color: #444; }
  .footer-bottom p span { color: var(--brand-red); }

  /* ─── FLOAT BTNS ─── */
  .float-cta { position: fixed; right: 28px; bottom: 28px; z-index: 200; display: flex; flex-direction: column; gap: 10px; }
  .float-btn { width: 52px; height: 52px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 22px; text-decoration: none; transition: transform .2s; cursor: pointer; border: none; }
  .float-btn:hover { transform: scale(1.1); }
  .float-call { background: var(--brand-red); color: var(--white); box-shadow: 0 4px 15px rgba(211,28,28,0.3); }
  .float-zalo { background: #0068ff; color: #fff; box-shadow: 0 4px 15px rgba(0,104,255,0.3); }

  /* ─── CART SIDEBAR ─── */
  .cart-sidebar {
    position: fixed;
    top: 0; right: -400px;
    width: 400px; height: 100vh;
    background: var(--dark2);
    border-left: 1px solid rgba(255,255,255,0.05);
    z-index: 1200;
    box-shadow: -10px 0 30px rgba(0,0,0,0.5);
    transition: right 0.3s ease-in-out;
    display: flex;
    flex-direction: column;
  }
  .cart-sidebar.open {
    right: 0;
  }
  .cart-header {
    padding: 24px;
    border-bottom: 1px solid rgba(255,255,255,0.05);
    display: flex;
    align-items: center;
    justify-content: space-between;
  }
  .cart-header h3 {
    font-family: 'Oswald', sans-serif;
    font-size: 24px;
    letter-spacing: 1px;
  }
  .close-cart-btn {
    background: none; border: none; color: var(--gray); font-size: 20px; cursor: pointer;
  }
  .close-cart-btn:hover { color: var(--white); }
  .cart-body {
    flex-grow: 1;
    overflow-y: auto;
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 16px;
  }
  .cart-item {
    display: flex;
    gap: 12px;
    background: var(--black);
    padding: 12px;
    border-radius: 4px;
    border: 1px solid rgba(255,255,255,0.02);
    align-items: center;
  }
  .cart-item-img {
    width: 60px; height: 60px; object-fit: cover; background: #222;
  }
  .cart-item-placeholder {
    width: 60px; height: 60px; background: #222; display: flex; align-items: center; justify-content: center; font-size: 20px;
  }
  .cart-item-info {
    flex-grow: 1;
  }
  .cart-item-name {
    font-size: 14px; font-weight: 600; margin-bottom: 4px; color: var(--white);
  }
  .cart-item-qty-wrap {
    display: flex; align-items: center; gap: 8px;
  }
  .cart-qty-btn {
    background: var(--light-gray); border: none; color: var(--white); width: 22px; height: 22px;
    border-radius: 2px; cursor: pointer; display: flex; align-items: center; justify-content: center; font-size: 12px;
  }
  .cart-qty-btn:hover { background: var(--brand-red); }
  .cart-item-qty { font-size: 13px; font-weight: 600; }
  .cart-item-del-btn {
    background: none; border: none; color: rgba(255,80,80,0.7); cursor: pointer; font-size: 16px;
  }
  .cart-item-del-btn:hover { color: #ff5050; }
  
  .cart-footer {
    padding: 24px;
    border-top: 1px solid rgba(255,255,255,0.05);
    background: var(--black);
  }
  .cart-quote-form {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-top: 16px;
  }
  .cart-quote-form input {
    background: var(--dark2); border: 1px solid var(--light-gray); color: var(--white);
    padding: 10px 14px; font-size: 13px; outline: none; width: 100%;
  }
  .cart-quote-form input:focus { border-color: var(--brand-red); }
  .submit-quote-btn {
    background: var(--brand-red); color: var(--white); border: none; padding: 12px;
    font-family: 'Barlow Condensed', sans-serif; font-size: 13px; font-weight: 700;
    letter-spacing: 1px; text-transform: uppercase; cursor: pointer; transition: background 0.2s;
  }
  .submit-quote-btn:hover { background: var(--brand-red-hover); }

  .cart-backdrop {
    position: fixed; inset: 0; background: rgba(0,0,0,0.6); z-index: 1100; display: none;
  }
  .cart-backdrop.open { display: block; }

  /* ─── DETAIL MODAL ─── */
  .detail-backdrop {
    position: fixed; inset: 0; background: rgba(0,0,0,0.85); z-index: 1300; display: none;
    align-items: center; justify-content: center; padding: 20px;
  }
  .detail-backdrop.open { display: flex; }
  .detail-modal {
    background: var(--dark2);
    border: 1px solid rgba(211,28,28,0.2);
    width: 100%;
    max-width: 720px;
    max-height: 85vh;
    display: flex;
    flex-direction: column;
    position: relative;
  }
  .detail-modal-close {
    position: absolute; top: 16px; right: 16px; background: none; border: none;
    color: var(--gray); font-size: 24px; cursor: pointer; z-index: 10;
  }
  .detail-modal-close:hover { color: var(--white); }
  .detail-modal-body {
    padding: 40px;
    overflow-y: auto;
  }
  .detail-modal-img {
    width: 100%; height: 300px; object-fit: cover; background: #222; margin-bottom: 24px;
  }
  .detail-modal-date {
    font-size: 12px; color: var(--brand-red); font-family: 'Barlow Condensed', sans-serif;
    letter-spacing: 2px; text-transform: uppercase; margin-bottom: 12px;
  }
  .detail-modal-title {
    font-family: 'Oswald', sans-serif; font-size: 32px; color: var(--white);
    margin-bottom: 20px; line-height: 1.2;
  }
  .detail-modal-content {
    font-size: 15px; color: var(--gray); line-height: 1.8;
  }

  /* ─── BLOG POST FULL-SCREEN OVERLAY ─── */
  #blog-overlay {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 1400;
    background: #f1f5f9;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }
  #blog-overlay.open {
    display: block;
  }
  .blog-ov-header {
    background: linear-gradient(90deg, #0f172a 0%, #111827 100%);
    border-bottom: 1px solid rgba(255,255,255,.08);
    padding: 16px 24px;
    position: sticky;
    top: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    box-shadow: 0 4px 20px rgba(0,0,0,.08);
  }
  .blog-ov-header .pd-btn-back {
    background: transparent;
    border: 1px solid rgba(255,255,255,.18);
    color: #fff;
    padding: 8px 14px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 1px;
    cursor: pointer;
  }
  .blog-ov-header .pd-header-logo {
    color: #fff;
    font-family: 'Oswald', sans-serif;
    font-size: 20px;
    letter-spacing: 1.5px;
  }
  .blog-ov-header .pd-header-logo span {
    color: #60a5fa;
  }
  .blog-ov-page {
    background: #f8fafc;
  }
  .blog-ov-hero {
    width: 100%;
    max-height: 420px;
    object-fit: cover;
    display: block;
  }
  .blog-ov-main {
    max-width: 820px;
    margin: 0 auto;
    padding: 40px 24px 80px;
  }
  .blog-ov-date {
    font-family: 'Barlow Condensed', sans-serif;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: #0068ff;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
  }
  .blog-ov-title {
    font-family: 'Oswald', sans-serif;
    font-size: clamp(28px, 4vw, 44px);
    line-height: 1.2;
    letter-spacing: 1px;
    color: #0f172a;
    margin-bottom: 24px;
  }
  .blog-ov-content {
    font-size: 16px;
    line-height: 1.9;
    color: #334155;
    white-space: pre-line;
  }
  .blog-ov-video {
    margin-top: 32px;
  }
  .blog-ov-video-label {
    font-family: 'Barlow Condensed', sans-serif;
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: #64748b;
    margin-bottom: 10px;
  }
  .blog-ov-cta {
    margin-top: 40px;
    padding: 28px;
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-left: 4px solid #0068ff;
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
  }
  .blog-ov-cta-text {
    flex: 1;
    font-family: 'Barlow Condensed', sans-serif;
    font-size: 16px;
    font-weight: 700;
    letter-spacing: 0.5px;
    color: #0f172a;
  }
  .blog-ov-cta a {
    font-family: 'Barlow Condensed', sans-serif;
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: uppercase;
    padding: 10px 24px;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: 0.2s;
  }
  .blog-ov-cta .cta-call {
    background: #0068ff;
    color: #fff;
  }
  .blog-ov-cta .cta-call:hover { background: #0050cc; }
  .blog-ov-cta .cta-zalo {
    background: #0068ff15;
    color: #0068ff;
    border: 1px solid #0068ff30;
  }
  .blog-ov-cta .cta-zalo:hover { background: #0068ff; color: #fff; }
  .blog-ov-footer {
    background: #0f172a;
    color: #e2e8f0;
    padding: 40px 24px 56px;
    border-top: 1px solid rgba(255,255,255,.06);
  }
  .blog-ov-footer-inner {
    max-width: 1100px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr;
    gap: 28px;
  }
  .blog-ov-footer h4 {
    font-family: 'Oswald', sans-serif;
    font-size: 18px;
    margin-bottom: 14px;
    color: #fff;
  }
  .blog-ov-footer p, .blog-ov-footer a {
    color: #cbd5e1;
    font-size: 14px;
    line-height: 1.7;
    text-decoration: none;
  }
  .blog-ov-footer a:hover { color: #60a5fa; }
  .blog-ov-footer ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }

  /* ─── ADMIN LOGIN OVERLAY ─── */
  #login-overlay { display:none; position:fixed; inset:0; z-index:1500; background:rgba(10,10,10,.97); backdrop-filter:blur(20px); align-items:center; justify-content:center; }
  #login-overlay.open { display:flex; }
  .login-box { background:#111; border:1px solid rgba(211, 28, 28, .15); padding:48px 40px; width:360px; }
  .login-logo { font-family:'Oswald',sans-serif; font-size:22px; letter-spacing:3px; color:var(--white); margin-bottom:4px; }
  .login-logo span { color:var(--brand-red); }
  .login-sub { font-size:12px; color:var(--gray); letter-spacing:1px; margin-bottom:32px; }
  .login-title { font-family:'Oswald',sans-serif; font-size:32px; letter-spacing:2px; margin-bottom:24px; }
  .login-input { width:100%; background:#0a0a0a; border:1px solid rgba(255,255,255,.08); color:var(--white); font-family:'Barlow',sans-serif; font-size:14px; padding:14px 18px; outline:none; margin-bottom:14px; transition:border .2s; }
  .login-input:focus { border-color:rgba(211, 28, 28, .4); }
  .login-btn { width:100%; background:var(--brand-red); border:none; color:var(--white); font-family:'Barlow Condensed',sans-serif; font-size:14px; font-weight:900; letter-spacing:3px; text-transform:uppercase; padding:14px; cursor:pointer; margin-top:8px; transition:background .2s; }
  .login-btn:hover { background:var(--brand-red-hover); }
  .login-error { color:#ff5050; font-size:13px; margin-top:10px; display:none; }
  .login-hint { font-size:12px; color:rgba(136,136,128,.5); margin-top:16px; text-align:center; }

  /* ─── ADMIN PANEL OVERLAY ─── */
  #admin-overlay { display:none; position:fixed; inset:0; z-index:1000; background:var(--admin-bg); overflow-y:auto; }
  #admin-overlay.open { display:flex; }
  .admin-wrapper { display:flex; min-height:100vh; width:100%; }

  /* Sidebar */
  .admin-sidebar { width:240px; flex-shrink:0; background:var(--admin-surface); border-right:1px solid var(--admin-border); padding:0; display:flex; flex-direction:column; }
  .admin-logo { padding:24px 24px 20px; border-bottom:1px solid var(--admin-border); }
  .admin-logo-text { font-family:'Oswald',sans-serif; font-size:20px; letter-spacing:2px; color:var(--white); }
  .admin-logo-sub { font-size:11px; color:var(--gray); letter-spacing:1px; text-transform:uppercase; margin-top:2px; }
  .admin-nav { flex:1; padding:16px 0; }
  .admin-nav-item { display:flex; align-items:center; gap:12px; padding:11px 24px; font-family:'Barlow Condensed',sans-serif; font-size:13px; font-weight:700; letter-spacing:1.5px; text-transform:uppercase; color:var(--gray); cursor:pointer; transition:all .15s; border-left:2px solid transparent; }
  .admin-nav-item:hover { color:var(--white); background:rgba(255,255,255,.03); }
  .admin-nav-item.active { color:var(--brand-red); border-left-color:var(--brand-red); background:rgba(211, 28, 28, .04); }
  .admin-nav-icon { font-size:16px; }
  .admin-logout { padding:20px 24px; border-top:1px solid var(--admin-border); }
  .admin-logout button { width:100%; padding:10px; background:rgba(211, 28, 28, .1); border:1px solid rgba(211, 28, 28, .2); color:var(--brand-red); font-family:'Barlow Condensed',sans-serif; font-size:12px; font-weight:700; letter-spacing:2px; text-transform:uppercase; cursor:pointer; transition:all .2s; }
  .admin-logout button:hover { background:rgba(211, 28, 28, .2); }

  /* Main Area */
  .admin-main { flex:1; display:flex; flex-direction:column; min-height:100vh; }
  .admin-topbar { display:flex; align-items:center; justify-content:space-between; padding:0 32px; height:64px; border-bottom:1px solid var(--admin-border); flex-shrink:0; }
  .admin-page-title { font-family:'Oswald',sans-serif; font-size:24px; letter-spacing:2px; color:var(--white); }
  .admin-user { display:flex; align-items:center; gap:10px; font-size:13px; color:var(--gray); }
  .admin-avatar { width:32px; height:32px; background:rgba(211, 28, 28, .15); border:1px solid rgba(211, 28, 28, .3); border-radius:50%; display:flex; align-items:center; justify-content:center; font-family:'Oswald',sans-serif; font-size:14px; color:var(--brand-red); }
  .admin-content { flex:1; padding:32px; }

  /* Admin Sections */
  .admin-section { display:none; }
  .admin-section.active { display:block; }

  /* Dashboard Cards */
  .dash-cards { display:grid; grid-template-columns:repeat(4,1fr); gap:16px; margin-bottom:32px; }
  .dash-card { background:var(--admin-surface); border:1px solid var(--admin-border); padding:20px 24px; }
  .dash-card-label { font-size:11px; letter-spacing:2px; text-transform:uppercase; color:var(--gray); margin-bottom:8px; }
  .dash-card-num { font-family:'Oswald',sans-serif; font-size:40px; color:var(--brand-red); line-height:1; }
  .dash-card-sub { font-size:12px; color:var(--gray); margin-top:4px; }

  /* Tables */
  .admin-table-wrap { background:var(--admin-surface); border:1px solid var(--admin-border); overflow:hidden; margin-bottom: 24px; }
  .admin-table-header { display:flex; align-items:center; justify-content:space-between; padding:18px 20px; border-bottom:1px solid var(--admin-border); }
  .admin-table-title { font-family:'Barlow Condensed',sans-serif; font-size:13px; font-weight:700; letter-spacing:2px; text-transform:uppercase; color:var(--white); }
  .admin-table-actions { display:flex; gap:10px; }
  .btn-add { background:var(--brand-red); color:var(--white); border:none; padding:8px 20px; font-family:'Barlow Condensed',sans-serif; font-size:12px; font-weight:900; letter-spacing:2px; text-transform:uppercase; cursor:pointer; transition:background .2s; }
  .btn-add:hover { background:var(--brand-red-hover); }
  
  table { width:100%; border-collapse:collapse; font-size:13px; }
  th { padding:12px 16px; text-align:left; font-family:'Barlow Condensed',sans-serif; font-size:10px; letter-spacing:2px; text-transform:uppercase; color:var(--gray); border-bottom:1px solid var(--admin-border); }
  td { padding:14px 16px; border-bottom:1px solid var(--admin-border); color:var(--white); vertical-align:middle; }
  tr:last-child td { border-bottom:none; }
  tr:hover td { background:rgba(255,255,255,.02); }
  
  .td-img { width:48px; height:48px; object-fit:cover; display:block; background:#222; }
  .td-img-placeholder { width:48px; height:48px; background:#222; display:flex; align-items:center; justify-content:center; font-size:18px; color:#444; }
  .btn-sm { padding:5px 12px; font-family:'Barlow Condensed',sans-serif; font-size:11px; font-weight:700; letter-spacing:1px; text-transform:uppercase; cursor:pointer; transition:all .15s; border:1px solid; }
  .btn-edit { background:transparent; border-color:rgba(245,196,0,.3); color:var(--yellow); }
  .btn-edit:hover { background:rgba(245,196,0,.1); }
  .btn-del { background:transparent; border-color:rgba(255,80,80,.3); color:#ff5050; }
  .btn-del:hover { background:rgba(255,80,80,.1); }
  .btn-view { background:transparent; border-color:rgba(0,180,255,.3); color:#00b4ff; }
  .btn-view:hover { background:rgba(0,180,255,.1); }
  
  .badge-status { display:inline-block; padding:3px 10px; font-size:10px; letter-spacing:1px; text-transform:uppercase; font-family:'Barlow Condensed',sans-serif; font-weight:700; }
  .badge-active { background:rgba(0,200,100,.1); color:#00c864; border:1px solid rgba(0,200,100,.2); }
  .badge-draft { background:rgba(136,136,128,.1); color:var(--gray); border:1px solid rgba(136,136,128,.2); }
  .badge-unread { background:rgba(211,28,28,.1); color:var(--brand-red); border:1px solid rgba(211,28,28,.2); }

  /* Modals inside Admin */
  .modal-backdrop { display:none; position:fixed; inset:0; background:rgba(0,0,0,.75); z-index:2000; align-items:flex-start; justify-content:center; padding:40px 20px; overflow-y:auto; }
  .modal-backdrop.open { display:flex; }
  .modal { background:#1a1a1c; border:1px solid rgba(211,28,28,0.2); width:100%; max-width:680px; padding:32px; position:relative; }
  .modal-title { font-family:'Oswald',sans-serif; font-size:28px; letter-spacing:2px; color:var(--white); margin-bottom:24px; }
  .modal-close { position:absolute; top:20px; right:20px; background:none; border:none; color:var(--gray); font-size:24px; cursor:pointer; line-height:1; }
  .modal-close:hover { color:var(--white); }
  
  .form-group { margin-bottom:16px; }
  .form-label { display:block; font-family:'Barlow Condensed',sans-serif; font-size:11px; font-weight:700; letter-spacing:2px; text-transform:uppercase; color:var(--gray); margin-bottom:8px; }
  .form-input, .form-textarea, .form-select { width:100%; background:#111; border:1px solid var(--light-gray); color:var(--white); font-family:'Barlow',sans-serif; font-size:14px; padding:12px 16px; outline:none; transition:border .2s; }
  .form-input:focus, .form-textarea:focus, .form-select:focus { border-color:var(--brand-red); }
  .form-textarea { height:100px; resize:vertical; }
  .rich-editor-toolbar { display:flex; flex-wrap:wrap; gap:8px; padding:10px 12px; border:1px solid rgba(255,255,255,0.1); border-bottom:none; background:#151515; border-radius:8px 8px 0 0; }
  .rich-editor-btn { border:1px solid rgba(255,255,255,0.12); background:#1b1b1b; color:#fff; padding:8px 10px; border-radius:6px; cursor:pointer; font-size:13px; }
  .rich-editor-btn:hover { border-color:var(--brand-red); background:#222; }
  .rich-editor-editor { min-height:240px; padding:16px; border:1px solid rgba(255,255,255,0.1); background:#111; color:#fff; border-radius:0 0 8px 8px; line-height:1.7; overflow:auto; }
  .rich-editor-editor:focus { outline:none; border-color:var(--brand-red); }
  .rich-editor-editor[data-placeholder]:empty:before { content: attr(data-placeholder); color: rgba(255,255,255,0.45); pointer-events:none; }
  .rich-editor-editor img { max-width:100%; height:auto; display:block; margin:16px 0; border-radius:8px; }
  .rich-editor-editor p { margin:0 0 12px; }
  .rich-editor-editor ul, .rich-editor-editor ol { padding-left:20px; margin:0 0 12px; }
  .rich-editor-editor blockquote { border-left:4px solid var(--brand-red); padding-left:16px; margin:16px 0; color:#cbd5e1; }
  .rich-editor-editor table { width:100%; border-collapse:collapse; margin:16px 0; }
  .rich-editor-editor td, .rich-editor-editor th { border:1px solid rgba(255,255,255,0.15); padding:8px 10px; }
  .rich-editor-editor h1, .rich-editor-editor h2, .rich-editor-editor h3, .rich-editor-editor h4 { margin:0 0 12px; color:#fff; }
  
  .img-upload-area { width:100%; height:140px; border:1.5px dashed rgba(255,255,255,0.1); display:flex; flex-direction:column; align-items:center; justify-content:center; cursor:pointer; transition:all .2s; gap:8px; position:relative; overflow:hidden; }
  .img-upload-area:hover { border-color:var(--brand-red); background:rgba(211, 28, 28, .02); }
  .img-upload-area input[type=file] { position:absolute; inset:0; opacity:0; cursor:pointer; }
  .img-preview { width:100%; height:140px; object-fit:cover; display:none; }
  .upload-icon { font-size:28px; color:rgba(255,255,255,0.2); }
  .upload-text { font-size:12px; color:var(--gray); }
  
  .modal-actions { display:flex; gap:12px; justify-content:flex-end; margin-top:24px; padding-top:24px; border-top:1px solid rgba(255,255,255,.05); }
  .btn-cancel { padding:10px 24px; background:transparent; border:1px solid var(--light-gray); color:var(--gray); font-family:'Barlow Condensed',sans-serif; font-size:12px; font-weight:700; letter-spacing:2px; text-transform:uppercase; cursor:pointer; }
  .btn-save { padding:10px 28px; background:var(--brand-red); border:none; color:var(--white); font-family:'Barlow Condensed',sans-serif; font-size:12px; font-weight:900; letter-spacing:2px; text-transform:uppercase; cursor:pointer; }

  /* Social configurations in Admin */
  .social-settings { background:var(--admin-surface); border:1px solid var(--admin-border); padding:28px; margin-bottom:24px; }
  .social-settings h3 { font-family:'Oswald',sans-serif; font-size:22px; letter-spacing:2px; margin-bottom:20px; }
  .social-row { display:flex; align-items:center; gap:16px; margin-bottom:16px; }
  .social-icon-label { width:36px; height:36px; display:flex; align-items:center; justify-content:center; font-size:20px; flex-shrink:0; }
  .social-row .form-input { flex:1; margin-bottom:0; }
  .social-name { font-family:'Barlow Condensed',sans-serif; font-size:13px; font-weight:700; letter-spacing:1px; text-transform:uppercase; width:90px; color:var(--gray); }

  /* ─── LIGHT THEME & SPA OVERRIDES ─── */
  /* Ribbon Banners by Category */
  .category-ribbon-container {
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 60px 0 40px;
    width: 100%;
  }
  .category-ribbon {
    background: #d31c1c; /* Keep classic red ribbon banner style */
    color: #ffffff !important;
    font-family: 'Oswald', sans-serif;
    font-size: 24px;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    padding: 10px 40px;
    position: relative;
    box-shadow: 0 4px 15px rgba(211,28,28,0.25);
  }
  .category-ribbon::before {
    content: '';
    position: absolute;
    left: -15px;
    top: 5px;
    border-width: 20px 15px 20px 0;
    border-style: solid;
    border-color: #9d1111 #9d1111 #9d1111 transparent;
    z-index: -1;
  }
  .category-ribbon::after {
    content: '';
    position: absolute;
    right: -15px;
    top: 5px;
    border-width: 20px 0 20px 15px;
    border-style: solid;
    border-color: #9d1111 transparent #9d1111 #9d1111;
    z-index: -1;
  }

  body {
    background:
      radial-gradient(circle at top left, rgba(0, 104, 255, 0.09), transparent 24%),
      linear-gradient(180deg, #f8fbff 0%, #ffffff 100%);
    color: var(--body-text);
  }
  
  /* Video Gallery Styles */
  .video-card {
    background: #ffffff;
    border: 1px solid var(--light-gray);
    display: flex;
    flex-direction: column;
    height: 100%;
    box-shadow: 0 4px 15px rgba(0,0,0,0.02);
  }
  .video-wrapper {
    position: relative;
    padding-bottom: 56.25%; /* 16:9 */
    height: 0;
    overflow: hidden;
    background: #000;
  }
  .video-wrapper iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 0;
  }
  .video-card-body {
    padding: 16px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    border-top: 1px solid var(--light-gray);
  }
  .video-card-title {
    font-family: 'Oswald', sans-serif !important;
    font-weight: 700 !important;
    font-size: 15px !important;
    color: var(--body-text);
    margin: 0;
    line-height: 1.4;
    letter-spacing: 0.5px;
    text-transform: uppercase;
  }
  
  /* Industrial Mechanical & Electrical accents */
  .product-card, .post-card, .step, .advantage-card, .btn-primary, .btn-secondary, .filter-btn, .read-more-btn, .nav-cta, .login-btn, .btn-save, .btn-add, .form-input, .form-textarea, .form-select {
    border-radius: 0px !important; /* Sharp industrial corners */
  }
  .btn-primary, .btn-secondary, .submit-btn, .nav-cta, .read-more-btn, .login-btn, .btn-save, .btn-add {
    border-radius: 999px !important;
    box-shadow: 0 12px 24px rgba(0, 104, 255, 0.14);
    transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
  }
  .btn-primary:hover, .btn-secondary:hover, .submit-btn:hover, .nav-cta:hover, .read-more-btn:hover, .login-btn:hover, .btn-save:hover, .btn-add:hover {
    transform: translateY(-2px);
    box-shadow: 0 16px 30px rgba(0, 104, 255, 0.2);
  }
  .contact-form, .contact-info-item, .faq-item, .video-card {
    border-radius: 22px;
    box-shadow: 0 18px 45px rgba(15, 23, 42, 0.06);
  }
  .contact-info-item {
    border: 1px solid rgba(0, 104, 255, 0.08);
  }
  .section-tag {
    color: var(--orange) !important;
    font-weight: 700;
  }
  .product-badge {
    background: var(--orange) !important;
    color: #ffffff !important;
    border-radius: 0px !important;
  }
  .advantage-card i {
    color: var(--brand-red) !important; /* Electric Blue */
  }
  .stats-bar {
    background: repeating-linear-gradient(
      45deg,
      rgba(0, 104, 255, 0.01),
      rgba(0, 104, 255, 0.01) 10px,
      rgba(0, 104, 255, 0.025) 10px,
      rgba(0, 104, 255, 0.025) 20px
    ) !important;
    border-top: 1px solid rgba(0, 104, 255, 0.15) !important;
    border-bottom: 1px solid rgba(0, 104, 255, 0.15) !important;
    border-radius: 0 !important;
  }
  
  /* Top bar */
  .top-bar {
    background: #003fa3;
    border-bottom: 1px solid rgba(0,0,0,0.05);
    color: rgba(255,255,255,0.8);
  }
  .top-bar-marquee span {
    color: #ffffff;
  }
  .top-bar-marquee span strong {
    color: #ffeb3b;
  }
  
  /* Header */
  .logo-text {
    color: var(--body-text);
  }
  .logo-text span {
    color: var(--brand-red);
  }
  .logo-dot {
    background: var(--brand-red);
  }
  .info-block span {
    color: var(--gray);
  }
  .info-block i {
    color: var(--brand-red);
  }
  .header-hotline {
    color: #ffffff !important;
  }
  .cart-btn {
    background: #ffffff;
    border-color: var(--light-gray);
    color: var(--body-text);
  }
  .cart-btn:hover {
    border-color: var(--brand-red);
    background: var(--brand-blue-light);
  }
  
  /* Nav links */
  .nav-links a {
    color: var(--gray);
  }
  .nav-links a:hover, .nav-links a.active {
    color: var(--brand-red);
  }
  .nav-cta {
    border-color: var(--brand-red);
    color: var(--brand-red) !important;
  }
  .nav-cta:hover {
    background: var(--brand-red);
    color: #ffffff !important;
  }
  .nav-social a {
    color: var(--gray);
  }
  .nav-social a:hover {
    color: var(--brand-red);
  }
  
  /* Sticky nav shadow and light background */
  #sticky-nav {
    background: rgba(255, 255, 255, 0.95);
    border-bottom: 1px solid var(--light-gray);
    box-shadow: 0 4px 20px rgba(0,0,0,0.05);
  }
  
  /* Slide Overlay & Buttons */
  .slide-overlay {
    background: linear-gradient(90deg, rgba(0,25,80,0.85) 0%, rgba(0,40,120,0.5) 50%, rgba(0,0,0,0.2) 100%);
  }
  .slide-title {
    color: #ffffff;
  }
  .slide-desc {
    color: rgba(255,255,255,0.7);
  }
  
  /* Intro Section */
  .intro-section {
    background: var(--brand-blue-light);
    color: var(--body-text);
  }
  .intro-content h1 {
    color: var(--body-text);
  }
  .intro-content p {
    color: var(--gray);
  }
  .advantage-card {
    background: #ffffff;
    border: 1px solid var(--light-gray);
    box-shadow: 0 4px 12px rgba(0,0,0,0.02);
  }
  .advantage-card h4 {
    color: var(--body-text);
  }
  .advantage-card p {
    color: var(--gray);
  }
  .advantage-card i {
    color: var(--brand-red);
  }
  
  /* Stats Bar */
  .stats-bar {
    background: #ffffff;
    border-top: 1px solid var(--light-gray);
    border-bottom: 1px solid var(--light-gray);
  }
  .stat-label {
    color: var(--gray);
  }
  
  /* Product Cards & Filters */
  .section-title {
    color: var(--body-text);
  }
  .section-sub {
    color: var(--gray);
  }
  .filter-btn {
    border: 1px solid var(--light-gray);
    background: #ffffff;
    color: var(--gray);
  }
  .filter-btn.active, .filter-btn:hover {
    background: var(--brand-red);
    border-color: var(--brand-red);
    color: #ffffff;
  }
  .grid-header {
    border-bottom: 1px solid var(--light-gray);
    color: var(--brand-red);
  }
  .product-card {
    background: #ffffff;
    border-color: var(--light-gray);
    box-shadow: 0 4px 15px rgba(0,0,0,0.02);
  }
  .product-card:hover {
    border-color: var(--brand-red);
  }
  .product-card-name {
    color: var(--body-text);
  }
  .product-card-desc {
    color: var(--gray);
  }
  .product-card-footer {
    border-top: 1px solid var(--light-gray);
  }
  .product-price {
    color: var(--brand-red);
  }
  .product-img-placeholder {
    background: linear-gradient(135deg, #f1f5f9, #e2e8f0);
    color: var(--brand-red);
    opacity: 0.8;
  }
  .product-img-wrapper {
    background: #f1f5f9;
  }
  
  /* Process Section */
  .process-section {
    background: var(--dark);
    border-top: 1px solid var(--light-gray);
    border-bottom: 1px solid var(--light-gray);
  }
  .step {
    background: #ffffff;
    border: 1px solid var(--light-gray);
    box-shadow: 0 4px 15px rgba(0,0,0,0.02);
  }
  .step-num {
    color: rgba(0, 104, 255, 0.08);
  }
  .step h4 {
    color: var(--body-text);
  }
  .step p {
    color: var(--gray);
  }
  
  /* Partners Carousel */
  .partners-section {
    background: #ffffff;
    border-top: 1px solid var(--light-gray);
  }
  .partner-logo {
    color: var(--gray);
  }
  .partner-logo i {
    color: var(--gray);
  }
  
  /* News Section */
  .post-card {
    background: #ffffff;
    border-color: var(--light-gray);
    box-shadow: 0 4px 15px rgba(0,0,0,0.02);
  }
  .post-card:hover {
    border-color: var(--brand-red);
  }
  .post-title {
    color: var(--body-text);
  }
  .post-excerpt {
    color: var(--gray);
  }
  .post-img-placeholder {
    background: linear-gradient(135deg, #f1f5f9, #e2e8f0);
    color: var(--brand-red);
    opacity: 0.8;
  }
  .read-more-btn {
    border-color: var(--light-gray);
    color: var(--body-text);
  }
  .read-more-btn:hover {
    border-color: var(--brand-red);
    background: var(--brand-red);
    color: #ffffff;
  }
  
  /* Contact Section */
  .contact-section {
    background: var(--dark);
    border-top: 1px solid var(--light-gray);
  }
  .contact-form input, .contact-form textarea, .contact-form select {
    background: #ffffff;
    border-color: var(--light-gray);
    color: var(--body-text);
  }
  .ci-icon {
    background: rgba(0, 104, 255, 0.06);
    border-color: rgba(0, 104, 255, 0.15);
    color: var(--brand-red);
  }
  .ci-value {
    color: var(--body-text);
  }
  .social-link {
    background: #ffffff;
    border-color: var(--light-gray);
    color: var(--gray);
  }
  .social-link:hover {
    background: var(--brand-red);
    border-color: var(--brand-red);
    color: #ffffff;
  }
  
  /* Embed Section */
  .embed-section {
    border-top: 1px solid var(--light-gray);
    background: #ffffff;
  }
  .embed-map {
    filter: none;
  }
  .embed-facebook {
    background: #ffffff;
    border-left: 1px solid var(--light-gray);
  }
  .fb-post {
    background: var(--dark);
    border-color: var(--light-gray);
  }
  .fb-post-text {
    color: var(--body-text);
  }
  
  /* Footer overrides (keeping it dark and stylish) */
  footer {
    background: #0f172a;
    border-top: 1px solid rgba(255,255,255,0.05);
    color: #94a3b8;
  }
  footer .logo-text {
    color: #ffffff;
  }
  footer .footer-brand p {
    color: #94a3b8;
  }
  footer .footer-col h5 {
    color: #38bdf8;
  }
  footer .footer-col ul li a {
    color: #94a3b8;
  }
  footer .footer-col ul li a:hover {
    color: #ffffff;
  }
  footer .footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.05);
  }
  footer .footer-bottom p {
    color: #64748b;
  }
  footer .footer-bottom p span {
    color: #38bdf8;
  }
  footer .social-link {
    background: rgba(255,255,255,0.03);
    border-color: rgba(255,255,255,0.08);
    color: #94a3b8;
  }
  footer .social-link:hover {
    background: var(--brand-red);
    border-color: var(--brand-red);
    color: #ffffff;
  }
  
  /* Cart sidebar */
  .cart-sidebar {
    background: #ffffff;
    border-left: 1px solid var(--light-gray);
  }
  .cart-header {
    border-bottom: 1px solid var(--light-gray);
  }
  .cart-item {
    background: var(--dark);
    border-color: var(--light-gray);
  }
  .cart-item-name {
    color: var(--body-text);
  }
  .cart-item-qty-wrap {
    color: var(--body-text);
  }
  .cart-qty-btn {
    background: var(--light-gray);
    color: var(--body-text);
  }
  .cart-footer {
    border-top: 1px solid var(--light-gray);
    background: #ffffff;
  }
  .cart-quote-form input {
    background: #ffffff;
    border-color: var(--light-gray);
    color: var(--body-text);
  }
  
  /* Modal detail */
  .detail-modal {
    background: #ffffff;
    border-color: var(--light-gray);
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
  }
  .detail-modal-close:hover {
    color: var(--brand-red) !important;
  }
  .detail-modal-title {
    color: var(--body-text);
  }
  .detail-modal-content {
    color: var(--gray);
  }
  
  /* Admin & Login CSS Overrides */
  #login-overlay {
    background: rgba(255,255,255,0.98);
  }
  .login-box {
    background: #ffffff;
    border-color: var(--light-gray);
    box-shadow: 0 10px 30px rgba(0,0,0,0.08);
  }
  .login-logo {
    color: var(--body-text);
  }
  .login-title {
    color: var(--body-text);
  }
  .login-input {
    background: #ffffff;
    border-color: var(--light-gray);
    color: var(--body-text);
  }
  .login-input:focus {
    border-color: var(--brand-red);
  }
  
  /* Bảng điều khiển Admin */
  .admin-sidebar {
    background: #ffffff;
    border-right: 1px solid var(--light-gray);
  }
  .admin-logo-text {
    color: var(--body-text);
  }
  .admin-nav-item:hover {
    color: var(--brand-red);
    background: rgba(0, 104, 255, 0.03);
  }
  .admin-nav-item.active {
    color: var(--brand-red);
    border-left-color: var(--brand-red);
    background: rgba(0, 104, 255, 0.06);
  }
  .admin-logout button {
    background: rgba(0, 104, 255, 0.05);
    border-color: rgba(0, 104, 255, 0.15);
    color: var(--brand-red);
  }
  .admin-logout button:hover {
    background: rgba(0, 104, 255, 0.1);
  }
  .admin-topbar {
    background: #ffffff;
    border-bottom: 1px solid var(--light-gray);
  }
  .admin-page-title {
    color: var(--body-text);
  }
  .admin-avatar {
    background: rgba(0, 104, 255, 0.08);
    border-color: rgba(0, 104, 255, 0.15);
    color: var(--brand-red);
  }
  .dash-card {
    background: #ffffff;
    border-color: var(--light-gray);
    box-shadow: 0 4px 10px rgba(0,0,0,0.02);
  }
  .dash-card-num {
    color: var(--brand-red);
  }
  
  .admin-table-wrap {
    background: #ffffff;
    border-color: var(--light-gray);
  }
  .admin-table-header {
    border-bottom: 1px solid var(--light-gray);
  }
  .admin-table-title {
    color: var(--body-text);
  }
  th {
    border-bottom: 1px solid var(--light-gray);
    color: var(--gray);
  }
  td {
    border-bottom: 1px solid var(--light-gray);
    color: var(--body-text);
  }
  tr:hover td {
    background: rgba(0, 104, 255, 0.02);
  }
  
  .modal {
    background: #ffffff;
    border-color: var(--light-gray);
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
  }
  .modal-close:hover {
    color: var(--brand-red) !important;
  }
  .modal-title {
    color: var(--body-text);
  }
  .form-input, .form-textarea, .form-select {
    background: #ffffff;
    border-color: var(--light-gray);
    color: var(--body-text);
  }
  .img-upload-area {
    border: 1.5px dashed var(--light-gray);
    background: var(--dark);
  }
  .img-upload-area:hover {
    border-color: var(--brand-red);
  }
  .upload-icon {
    color: var(--gray);
  }
  .modal-actions {
    border-top: 1px solid var(--light-gray);
  }
  .btn-cancel {
    border-color: var(--light-gray);
    color: var(--gray);
  }
  .social-settings {
    background: #ffffff;
    border-color: var(--light-gray);
  }
  .social-settings h3 {
    color: var(--body-text);
  }
  
  /* General button styles */
  .btn-primary, .btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 28px;
    font-family: 'Barlow Condensed', sans-serif;
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    text-decoration: none;
    border-radius: 4px;
    transition: all 0.2s ease-in-out;
    cursor: pointer;
  }
  .btn-primary {
    background: var(--brand-red);
    color: #ffffff !important;
    border: 1px solid var(--brand-red);
  }
  .btn-primary:hover {
    background: var(--brand-red-hover);
    border-color: var(--brand-red-hover);
  }
  .btn-secondary {
    background: transparent;
    color: var(--brand-red) !important;
    border: 1px solid var(--brand-red);
  }
  .btn-secondary:hover {
    background: rgba(0, 104, 255, 0.05);
  }
  
  /* ─── SPA VIEW SWITCHING ─── */
  .page-view {
    display: none;
  }
  .page-view.active {
    display: block;
  }

  /* ─── PRODUCT DETAIL FULL-SCREEN OVERLAY ─── */
  #pd-overlay {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 1400;
    background: #f1f5f9;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }
  #pd-overlay.open {
    display: block;
  }
  .pd-header {
    background: linear-gradient(90deg, #0f172a 0%, #111827 100%);
    border-bottom: 1px solid rgba(255,255,255,.08);
    padding: 16px 24px;
    position: sticky;
    top: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
    box-shadow: 0 4px 20px rgba(0,0,0,.08);
  }
  .pd-header-marquee {
    flex: 1 1 320px;
    min-width: 220px;
    overflow: hidden;
    white-space: nowrap;
    border: 1px solid rgba(255,255,255,.12);
    border-radius: 999px;
    padding: 8px 14px;
    background: rgba(255,255,255,.06);
  }
  .pd-header-marquee span {
    display: inline-block;
    padding-left: 100%;
    animation: pdMarquee 18s linear infinite;
    color: #e2e8f0;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.5px;
  }
  .pd-header-marquee span strong {
    color: #60a5fa;
  }
  @keyframes pdMarquee {
    0% { transform: translate3d(0, 0, 0); }
    100% { transform: translate3d(-100%, 0, 0); }
  }
  .pd-btn-back {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: transparent;
    color: #ffffff;
    border: 1px solid rgba(255,255,255,.18);
    border-radius: 999px;
    font-family: 'Barlow Condensed', sans-serif;
    font-size: 15px;
    font-weight: 700;
    cursor: pointer;
    transition: 0.2s ease;
    white-space: nowrap;
  }
  .pd-btn-back:hover {
    background: rgba(255,255,255,.12);
    color: #ffffff;
  }
  .pd-header-logo {
    font-family: 'Oswald', sans-serif;
    font-size: 18px;
    font-weight: 700;
    letter-spacing: 1px;
    color: #ffffff;
  }
  .pd-header-logo span { color: #60a5fa; }
  .pd-page {
    background: #f8fafc;
    padding-bottom: 20px;
  }
  .pd-main {
    max-width: 1200px;
    margin: 28px auto;
    padding: 0 20px 60px;
  }
  .pd-footer {
    background: #0f172a;
    color: #e2e8f0;
    padding: 40px 24px 56px;
    border-top: 1px solid rgba(255,255,255,.06);
  }
  .pd-footer-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1.2fr 0.8fr 0.8fr 1fr;
    gap: 28px;
  }
  .pd-footer h4 {
    font-family: 'Oswald', sans-serif;
    font-size: 18px;
    margin-bottom: 14px;
    color: #fff;
  }
  .pd-footer p, .pd-footer a {
    color: #cbd5e1;
    font-size: 14px;
    line-height: 1.7;
    text-decoration: none;
  }
  .pd-footer a:hover { color: #60a5fa; }
  .pd-footer ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
  .pd-footer-map {
    margin-top: 12px;
    border-radius: 14px;
    overflow: hidden;
    border: 1px solid rgba(255,255,255,.08);
  }
  .pd-footer-map iframe {
    width: 100%;
    min-height: 180px;
    border: 0;
    display: block;
  }
  .pd-footer-bottom {
    margin-top: 36px;
    padding-top: 20px;
    border-top: 1px solid rgba(255,255,255,.08);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    color: #94a3b8;
    font-size: 13px;
  }
  .pd-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 36px;
    background: #ffffff;
    border-radius: 16px;
    padding: 36px;
    box-shadow: 0 8px 30px rgba(0,0,0,0.06);
  }
  /* Gallery */
  .pd-gallery { display: flex; flex-direction: column; gap: 14px; }
  .pd-main-img-wrap {
    position: relative;
    background: #f8fafc;
    border-radius: 12px;
    border: 1px solid #e2e8f0;
    height: 440px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    cursor: zoom-in;
    user-select: none;
  }
  .pd-main-img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    transition: transform 0.3s ease;
  }
  .pd-gal-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255,255,255,0.85);
    border: 1px solid #e2e8f0;
    color: #0f172a;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 5;
    font-size: 16px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    transition: 0.2s ease;
  }
  .pd-gal-arrow:hover { background: #0068ff; color: #fff; border-color: #0068ff; }
  .pd-gal-arrow.prev { left: 12px; }
  .pd-gal-arrow.next { right: 12px; }
  .pd-zoom-hint {
    position: absolute;
    bottom: 12px;
    right: 12px;
    background: rgba(0,0,0,0.55);
    color: #fff;
    padding: 5px 10px;
    border-radius: 20px;
    font-size: 11px;
    display: flex;
    align-items: center;
    gap: 5px;
    pointer-events: none;
  }
  .pd-thumbnails {
    display: flex;
    gap: 10px;
    overflow-x: auto;
    padding-bottom: 4px;
    scrollbar-width: thin;
  }
  .pd-thumb {
    width: 72px;
    height: 72px;
    border-radius: 8px;
    border: 2px solid transparent;
    background: #f8fafc;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    flex-shrink: 0;
    transition: 0.2s ease;
  }
  .pd-thumb img { max-width: 100%; max-height: 100%; object-fit: cover; }
  .pd-thumb.active { border-color: #0068ff; box-shadow: 0 0 8px rgba(0,104,255,0.2); }
  /* Info */
  .pd-info { display: flex; flex-direction: column; }
  .pd-cat-badge {
    display: inline-block;
    align-self: flex-start;
    padding: 5px 12px;
    background: #eef4ff;
    color: #0068ff;
    font-family: 'Barlow Condensed', sans-serif;
    font-weight: 700;
    font-size: 13px;
    letter-spacing: 1px;
    border-radius: 4px;
    text-transform: uppercase;
    margin-bottom: 14px;
  }
  .pd-title {
    font-family: 'Oswald', sans-serif;
    font-size: 30px;
    font-weight: 700;
    line-height: 1.2;
    color: #0f172a;
    margin-bottom: 10px;
  }
  .pd-price {
    font-family: 'Barlow Condensed', sans-serif;
    font-size: 26px;
    font-weight: 800;
    color: #d32f2f;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
  }
  .pd-price-badge {
    font-size: 11px;
    background: #ffebee;
    color: #c62828;
    padding: 3px 8px;
    border-radius: 4px;
    font-weight: 700;
    font-family: 'Inter', sans-serif;
  }
  .pd-desc {
    font-size: 14px;
    color: #64748b;
    margin-bottom: 24px;
    white-space: pre-line;
    border-top: 1px solid #e2e8f0;
    padding-top: 18px;
    line-height: 1.7;
  }
  .pd-cta-group { display: flex; flex-direction: column; gap: 10px; margin-bottom: 24px; }
  .pd-btn-call {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 20px;
    background: #c62828;
    color: #fff;
    font-family: 'Barlow Condensed', sans-serif;
    font-size: 16px;
    font-weight: 700;
    text-decoration: none;
    border-radius: 8px;
    transition: 0.2s ease;
    box-shadow: 0 4px 12px rgba(198,40,40,0.18);
    text-align: center;
  }
  .pd-btn-call:hover { background: #b71c1c; }
  .pd-btn-zalo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 20px;
    background: #0068ff;
    color: #fff;
    font-family: 'Barlow Condensed', sans-serif;
    font-size: 16px;
    font-weight: 700;
    text-decoration: none;
    border-radius: 8px;
    transition: 0.2s ease;
    box-shadow: 0 4px 12px rgba(0,104,255,0.18);
    text-align: center;
  }
  .pd-btn-zalo:hover { background: #0050d2; }
  .pd-quote-card {
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 10px;
    padding: 20px;
  }
  .pd-quote-card h3 {
    font-family: 'Barlow Condensed', sans-serif;
    font-size: 17px;
    font-weight: 700;
    margin-bottom: 14px;
    color: #0f172a;
    display: flex;
    align-items: center;
    gap: 7px;
  }
  .pd-form-group { margin-bottom: 10px; }
  .pd-form-label { display: block; font-size: 12px; font-weight: 600; margin-bottom: 5px; color: #0f172a; }
  .pd-form-input, .pd-form-textarea {
    width: 100%;
    padding: 9px 12px;
    border: 1px solid #e2e8f0;
    border-radius: 6px;
    font-family: 'Inter', sans-serif;
    font-size: 13px;
    outline: none;
    transition: 0.2s ease;
    background: #fff;
    color: #0f172a;
  }
  .pd-form-input:focus, .pd-form-textarea:focus {
    border-color: #0068ff;
    box-shadow: 0 0 0 3px rgba(0,104,255,0.08);
  }
  .pd-form-textarea { height: 72px; resize: none; }
  .pd-btn-submit {
    width: 100%;
    padding: 11px;
    background: #0068ff;
    color: #fff;
    border: none;
    border-radius: 6px;
    font-family: 'Barlow Condensed', sans-serif;
    font-size: 15px;
    font-weight: 700;
    cursor: pointer;
    transition: 0.2s ease;
  }
  .pd-btn-submit:hover { background: #0050d2; }

  /* LIGHTBOX INSIDE OVERLAY */
  #pd-lightbox {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.96);
    z-index: 1600;
    display: none;
    align-items: center;
    justify-content: center;
    user-select: none;
  }
  #pd-lightbox.open { display: flex; }
  .pd-lb-close {
    position: absolute;
    top: 20px;
    right: 20px;
    background: rgba(255,255,255,0.12);
    border: none;
    color: #fff;
    font-size: 22px;
    width: 46px;
    height: 46px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1620;
    transition: 0.2s;
  }
  .pd-lb-close:hover { background: rgba(255,255,255,0.3); }
  .pd-lb-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255,255,255,0.1);
    border: none;
    color: #fff;
    width: 52px;
    height: 52px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 22px;
    z-index: 1620;
    transition: 0.2s;
  }
  .pd-lb-arrow:hover { background: rgba(255,255,255,0.28); }
  .pd-lb-arrow.prev { left: 20px; }
  .pd-lb-arrow.next { right: 20px; }
  .pd-lb-img-wrap {
    position: absolute;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: grab;
    transition: transform 0.1s ease-out;
  }
  .pd-lb-img-wrap:active { cursor: grabbing; }
  .pd-lb-img {
    max-width: 90vw;
    max-height: 88vh;
    object-fit: contain;
    pointer-events: none;
  }
  .pd-lb-zoom-bar {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0,0,0,0.8);
    border: 1px solid rgba(255,255,255,0.12);
    border-radius: 30px;
    padding: 7px 14px;
    display: flex;
    align-items: center;
    gap: 14px;
    z-index: 1620;
  }
  .pd-lb-zoom-btn {
    background: transparent;
    border: none;
    color: #fff;
    font-size: 17px;
    cursor: pointer;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: 0.2s;
  }
  .pd-lb-zoom-btn:hover { background: rgba(255,255,255,0.12); }
  .pd-lb-zoom-text { color: #fff; font-size: 13px; min-width: 44px; text-align: center; font-weight: 700; }

  /* Responsive for pd-overlay */
  @media (max-width: 968px) {
    .pd-grid { grid-template-columns: 1fr; padding: 20px; gap: 28px; }
    .pd-main-img-wrap { height: 340px; }
  }
  @media (max-width: 600px) {
    .pd-header { padding: 10px 14px; }
    .pd-header-logo { font-size: 15px; }
    .pd-btn-back { padding: 7px 12px; font-size: 13px; }
    .pd-main { margin: 16px auto; padding: 0 12px 40px; }
    .pd-grid { padding: 16px; gap: 20px; border-radius: 10px; }
    .pd-main-img-wrap { height: 260px; border-radius: 8px; }
    .pd-title { font-size: 22px; }
    .pd-price { font-size: 20px; }
    .pd-thumb { width: 60px; height: 60px; }
    .pd-btn-call, .pd-btn-zalo { font-size: 14px; padding: 12px 16px; }
    .pd-lb-arrow { width: 40px; height: 40px; font-size: 18px; }
    .pd-lb-arrow.prev { left: 10px; }
    .pd-lb-arrow.next { right: 10px; }
    .pd-lb-zoom-bar { bottom: 14px; padding: 6px 10px; }
  }

  /* ─── SCROLL TO TOP & HAMBURGER MENU STYLES ─── */
  .scroll-to-top-btn {
    position: fixed;
    right: 28px;
    bottom: 96px;
    width: 52px;
    height: 52px;
    border-radius: 50%;
    background: #0f172a;
    border: 1px solid rgba(255,255,255,0.15);
    color: #ffffff;
    font-size: 22px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 200;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0,0,0,0.3);
  }
  .scroll-to-top-btn.show {
    opacity: 1;
    visibility: visible;
  }
  .scroll-to-top-btn:hover {
    background: var(--brand-red);
    border-color: var(--brand-red);
    transform: translateY(-3px);
  }

  .menu-toggle-btn {
    display: none;
    background: none;
    border: none;
    color: var(--body-text);
    font-size: 24px;
    cursor: pointer;
  }

  /* ─── RESPONSIVE STYLES ─── */
  @media (max-width: 1024px) {
    .main-header {
      padding: 0 24px;
    }
    #sticky-nav {
      padding: 0 24px;
    }
    .top-bar {
      padding: 0 24px;
    }
  }

  @media (max-width: 968px) {
    .top-bar {
      display: none;
    }
    .main-header {
      height: 70px;
    }
    .header-info {
      display: none;
    }
    .header-hotline span {
      display: none;
    }
    .header-hotline {
      width: 44px;
      height: 44px;
      padding: 0;
      justify-content: center;
      border-radius: 50% !important;
    }
    
    .menu-toggle-btn {
      display: block;
    }
    .nav-links {
      position: fixed;
      top: 126px; /* main-header height + sticky-nav height */
      left: -100%;
      width: 100%;
      height: calc(100vh - 126px);
      background: #ffffff;
      flex-direction: column;
      gap: 0;
      transition: left 0.3s ease-in-out;
      border-top: 1px solid var(--light-gray);
      z-index: 99;
      overflow-y: auto;
      box-shadow: 0 10px 20px rgba(0,0,0,0.05);
    }
    .nav-links.open {
      left: 0;
    }
    .nav-links li {
      width: 100%;
      border-bottom: 1px solid var(--light-gray);
    }
    .nav-links li a {
      display: block;
      padding: 16px 24px;
      font-size: 16px;
      letter-spacing: 1.5px;
      color: var(--body-text);
      width: 100%;
    }
    .nav-links li a.active, .nav-links li a:hover {
      background: var(--brand-blue-light);
      color: var(--brand-red);
    }
    .nav-actions {
      display: none;
    }
    
    .intro-grid {
      grid-template-columns: 1fr;
      gap: 40px;
    }
    .stats-bar {
      grid-template-columns: 1fr 1fr;
      gap: 32px 16px;
      padding: 32px 24px;
    }
    .products-grid-4 {
      grid-template-columns: 1fr 1fr;
      gap: 16px;
    }
    .products-grid-3 {
      grid-template-columns: 1fr 1fr;
      gap: 16px;
    }
    .process-steps {
      grid-template-columns: 1fr 1fr;
      gap: 16px;
    }
    .posts-grid {
      grid-template-columns: 1fr;
      gap: 24px;
    }
    .contact-grid {
      grid-template-columns: 1fr;
      gap: 40px;
    }
    .embed-section {
      grid-template-columns: 1fr;
    }
    .embed-facebook {
      border-left: none;
      border-top: 1px solid var(--light-gray);
    }
    .footer-grid {
      grid-template-columns: 1fr;
      gap: 40px;
    }
    .cart-sidebar {
      width: 100%;
      right: -100%;
    }
  }

  @media (max-width: 600px) {
    .main-header {
      padding: 0 16px;
    }
    #sticky-nav {
      padding: 0 16px;
    }
    .logo-text {
      font-size: 20px;
    }
    .logo-dot {
      width: 8px;
      height: 8px;
    }
    .hero-slider {
      height: 50vh;
      min-height: 320px;
    }
    .slide {
      padding: 0 16px;
    }
    .slide-title {
      font-size: 28px;
    }
    .slide-desc {
      font-size: 14px;
      margin-bottom: 20px;
    }
    .slide-content .btn-primary, .slide-content .btn-secondary {
      padding: 10px 16px;
      font-size: 12px;
    }
    .intro-section {
      padding: 48px 16px;
    }
    .intro-content h1 {
      font-size: 32px;
    }
    .intro-advantages {
      grid-template-columns: 1fr;
    }
    .stats-bar {
      grid-template-columns: 1fr 1fr;
      padding: 24px 16px;
    }
    .stat-num {
      font-size: 36px;
    }
    .stat-label {
      font-size: 9px;
      letter-spacing: 1.5px;
    }
    .products-section {
      padding: 48px 16px;
    }
    .section-title {
      font-size: 32px;
    }
    .products-grid-4 {
      grid-template-columns: 1fr;
    }
    .products-grid-3 {
      grid-template-columns: 1fr;
    }
    .process-section {
      padding: 48px 16px;
    }
    .process-steps {
      grid-template-columns: 1fr;
    }
    .step {
      padding: 24px 16px;
    }
    .news-section {
      padding: 48px 16px;
    }
    .contact-section {
      padding: 48px 16px;
    }
    .contact-form {
      gap: 12px;
    }
    .form-row-2 {
      grid-template-columns: 1fr;
      gap: 12px;
    }
    .footer-bottom {
      flex-direction: column;
      gap: 12px;
      text-align: center;
    }
    
    .admin-wrapper {
      flex-direction: column;
    }
    .admin-sidebar {
      width: 100%;
      border-right: none;
      border-bottom: 1px solid var(--light-gray);
    }
    .admin-nav {
      display: flex;
      flex-wrap: wrap;
      padding: 8px;
    }
    .admin-nav-item {
      padding: 8px 16px;
      font-size: 11px;
    }
    .admin-logout {
      padding: 12px;
    }
    .admin-content {
      padding: 16px;
    }
    .dash-cards {
      grid-template-columns: 1fr 1fr;
    }
    .detail-modal {
      width: 100%;
      height: 100%;
      max-height: 100%;
    }
    .detail-modal-body {
      padding: 20px;
    }
  }

  /* ════════════════════════════════════════════════════════════════
     🎬 ADVANCED ANIMATIONS – Thêm vào để website sống động hơn
     ════════════════════════════════════════════════════════════════ */

  /* ─── 1. FADE-IN SLIDE-UP cho Hero khi Slide Active ─── */
  @keyframes fadeInSlideUp {
    0%   { opacity: 0; transform: translateY(40px); }
    100% { opacity: 1; transform: translateY(0); }
  }

  .slide.active .slide-content .section-tag {
    animation: fadeInSlideUp 0.7s ease-out 0.1s both;
  }
  .slide.active .slide-content .slide-title {
    animation: fadeInSlideUp 0.7s ease-out 0.25s both;
  }
  .slide.active .slide-content .slide-desc {
    animation: fadeInSlideUp 0.7s ease-out 0.4s both;
  }
  .slide.active .slide-content .btn-primary,
  .slide.active .slide-content .btn-secondary {
    animation: fadeInSlideUp 0.7s ease-out 0.55s both;
  }

  /* ─── 2. FLOATING cho CTA Buttons ─── */
  @keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
  }

  .float-cta .float-btn {
    animation: float 3s ease-in-out infinite;
  }
  .float-cta .float-btn:nth-child(2) {
    animation-delay: 0.5s;
  }

  /* ─── 3. PULSE GLOW cho Hotline ─── */
  @keyframes pulseGlow {
    0%, 100% { box-shadow: 0 12px 24px rgba(0, 104, 255, 0.14); }
    50% { box-shadow: 0 12px 40px rgba(0, 104, 255, 0.4); }
  }

  .header-hotline {
    animation: pulseGlow 2.5s ease-in-out infinite;
  }

  /* ─── 4. SHIMMER cho Badge sản phẩm ─── */
  @keyframes shimmer {
    0%   { background-position: -200% center; }
    100% { background-position: 200% center; }
  }

  .product-badge {
    background: linear-gradient(90deg, var(--orange), #ff8533, var(--orange), #ff8533);
    background-size: 300% auto;
    animation: shimmer 4s linear infinite;
  }

  /* ─── 5. SCALE-IN cho Product Cards khi xuất hiện ─── */
  @keyframes scaleIn {
    0%   { opacity: 0; transform: scale(0.92) translateY(20px); }
    100% { opacity: 1; transform: scale(1) translateY(0); }
  }

  .product-card {
    animation: scaleIn 0.5s ease-out both;
  }
  .product-card:nth-child(2) { animation-delay: 0.08s; }
  .product-card:nth-child(3) { animation-delay: 0.16s; }
  .product-card:nth-child(4) { animation-delay: 0.24s; }
  .product-card:nth-child(5) { animation-delay: 0.32s; }
  .product-card:nth-child(6) { animation-delay: 0.4s; }
  .product-card:nth-child(7) { animation-delay: 0.48s; }
  .product-card:nth-child(8) { animation-delay: 0.56s; }

  /* ─── 6. BORDER GLOW cho Section Title underline ─── */
  @keyframes borderGlow {
    0%, 100% { width: 72px; opacity: 1; }
    50% { width: 120px; opacity: 0.6; }
  }

  .section-title::after {
    animation: borderGlow 4s ease-in-out infinite;
  }

  /* ─── 7. BOUNCE cho Step Numbers khi hover ─── */
  @keyframes bounce {
    0%, 100% { transform: translateY(0); }
    20% { transform: translateY(-10px); }
    40% { transform: translateY(0); }
    60% { transform: translateY(-5px); }
    80% { transform: translateY(0); }
  }

  .step:hover .step-num {
    animation: bounce 0.8s ease;
  }

  /* ─── 8. PARTNER LOGO HOVER ─── */
  .partner-logo {
    transition: all 0.3s ease;
  }
  .partner-logo:hover {
    transform: scale(1.15);
    color: var(--brand-red) !important;
  }
  .partner-logo:hover i {
    color: var(--brand-red);
  }

  /* ─── 9. CARD HOVER NÂNG CAO ─── */
  .advantage-card {
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  }
  .advantage-card:hover {
    transform: translateY(-6px) scale(1.02);
    box-shadow: 0 20px 40px rgba(0,0,0,0.12);
  }

  .step {
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  }
  .step:hover {
    transform: translateY(-4px);
    box-shadow: 0 16px 32px rgba(0,0,0,0.1);
  }

  .post-card {
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  }
  .post-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.08);
  }

  .faq-item {
    transition: all 0.4s ease;
  }
  .faq-item:hover {
    transform: translateX(6px);
    border-color: var(--brand-red);
    box-shadow: 0 12px 30px rgba(15, 23, 42, 0.1);
  }

  .contact-info-item {
    transition: all 0.4s ease;
  }
  .contact-info-item:hover {
    transform: translateX(4px);
    border-color: var(--brand-red);
    box-shadow: 0 8px 20px rgba(0,0,0,0.04);
  }

  /* ─── 10. IMAGE ZOOM NHẸ KHI HOVER ─── */
  .product-img-wrapper {
    overflow: hidden;
  }
  .product-img {
    transition: transform 0.5s ease;
  }
  .product-card:hover .product-img {
    transform: scale(1.08);
  }

  .post-img-wrapper {
    overflow: hidden;
  }
  .post-img {
    transition: transform 0.5s ease;
  }
  .post-card:hover .post-img {
    transform: scale(1.08);
  }

  /* ─── 11. SLIDE-IN CHO STATS BAR ─── */
  @keyframes countReveal {
    0%   { opacity: 0; transform: translateY(20px) scale(0.95); }
    100% { opacity: 1; transform: translateY(0) scale(1); }
  }

  .stat {
    animation: countReveal 0.6s ease-out both;
  }
  .stat:nth-child(2) { animation-delay: 0.1s; }
  .stat:nth-child(3) { animation-delay: 0.2s; }
  .stat:nth-child(4) { animation-delay: 0.3s; }

  /* ─── 12. NAV LINK UNDERLINE HIỆU ỨNG ─── */
  .nav-links a {
    position: relative;
  }
  .nav-links a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--brand-red), transparent);
    transition: width 0.3s ease;
  }
  .nav-links a:hover::after,
  .nav-links a.active::after {
    width: 100%;
  }

  /* ─── 13. SOCIAL ICON NÂNG CAO ─── */
  .social-link {
    transition: all 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    position: relative;
    overflow: hidden;
  }
  .social-link::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--brand-red);
    transform: scale(0);
    border-radius: 50%;
    transition: transform 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    z-index: -1;
  }
  .social-link:hover::before {
    transform: scale(1);
  }
  .social-link:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 16px rgba(0, 104, 255, 0.25);
  }

  /* ─── 14. SLIDER DOT ANIMATION ─── */
  .slider-dot {
    transition: all 0.3s ease;
  }
  .slider-dot.active {
    animation: dotPulse 1.5s ease-in-out infinite;
  }
  @keyframes dotPulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(0, 104, 255, 0.3); }
    50% { box-shadow: 0 0 0 6px rgba(0, 104, 255, 0); }
  }

  /* ─── 15. TITLE GRADIENT ANIMATION ─── */
  .logo-text span {
    background: linear-gradient(135deg, var(--brand-red), #60a5fa, var(--brand-red));
    background-size: 200% auto;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradientShift 4s ease infinite;
  }
  @keyframes gradientShift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
  }

  /* ─── 16. BUTTON ICON BOUNCE ─── */
  .btn-primary i, .btn-secondary i, .submit-btn i {
    transition: transform 0.3s ease;
    display: inline-block;
  }
  .btn-primary:hover i, .btn-secondary:hover i, .submit-btn:hover i {
    animation: iconBounce 0.5s ease;
  }
  @keyframes iconBounce {
    0%, 100% { transform: translateX(0); }
    50% { transform: translateX(6px); }
  }

  /* ─── 17. SCROLL-TO-TOP FADE & BOUNCE ─── */
  .scroll-to-top-btn.show {
    animation: bounceInUp 0.6s ease both;
  }
  @keyframes bounceInUp {
    0%   { opacity: 0; transform: translateY(30px) scale(0.8); }
    60%  { opacity: 1; transform: translateY(-4px) scale(1.05); }
    100% { opacity: 1; transform: translateY(0) scale(1); }
  }

  /* ─── 18. VIDEO CARD HOVER ─── */
  .video-card {
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  }
  .video-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.08);
    border-color: var(--brand-red);
  }

  /* ─── 19. DASHBOARD CARD LOAD ANIMATION ─── */
  .dash-card {
    animation: scaleIn 0.5s ease-out both;
  }
  .dash-card:nth-child(2) { animation-delay: 0.1s; }
  .dash-card:nth-child(3) { animation-delay: 0.2s; }
  .dash-card:nth-child(4) { animation-delay: 0.3s; }

  /* ─── 20. FOOTER LINK HOVER ─── */
  .footer-col ul li a {
    position: relative;
    display: inline-block;
    transition: all 0.3s ease;
  }
  .footer-col ul li a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--brand-red);
    transition: width 0.3s ease;
  }
  .footer-col ul li a:hover::after {
    width: 100%;
  }

  /* ─── 21. INTRO ADVANTAGE STAGGER ─── */
  .advantage-card:nth-child(1) { animation-delay: 0.05s; }
  .advantage-card:nth-child(2) { animation-delay: 0.15s; }
  .advantage-card:nth-child(3) { animation-delay: 0.25s; }
  .advantage-card:nth-child(4) { animation-delay: 0.35s; }

  /* ─── 22. PRODUCT FILTER BUTTON HOVER NÂNG CAO ─── */
  .filter-btn {
    position: relative;
    overflow: hidden;
  }
  .filter-btn::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--brand-red), #1d4ed8);
    opacity: 0;
    transition: opacity 0.3s ease;
    border-radius: 999px;
    z-index: -1;
  }
  .filter-btn:hover::before,
  .filter-btn.active::before {
    opacity: 1;
  }

  /* ─── 23. SUBMIT BUTTON LOADING GLOW ─── */
  .submit-btn {
    position: relative;
    overflow: hidden;
  }
  .submit-btn::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.15), transparent);
    transition: left 0.6s ease;
  }
  .submit-btn:hover::after {
    left: 100%;
  }

  /* ─── 24. PRODUCT DETAIL OVERLAY ANIMATION ─── */
  #pd-overlay.open {
    animation: overlayFadeIn 0.3s ease-out;
  }
  @keyframes overlayFadeIn {
    0%   { opacity: 0; }
    100% { opacity: 1; }
  }

  .pd-main {
    animation: slideUpFade 0.4s ease-out 0.1s both;
  }
  @keyframes slideUpFade {
    0%   { opacity: 0; transform: translateY(20px); }
    100% { opacity: 1; transform: translateY(0); }
  }

  /* ─── 25. BLOG OVERLAY ANIMATION ─── */
  #blog-overlay.open {
    animation: overlayFadeIn 0.3s ease-out;
  }
  .blog-ov-main {
    animation: slideUpFade 0.5s ease-out 0.15s both;
  }

  /* ─── 26. DETAIL MODAL BACKDROP ANIMATION ─── */
  .detail-backdrop.open {
    animation: backdropFadeIn 0.25s ease-out;
  }
  @keyframes backdropFadeIn {
    0%   { opacity: 0; }
    100% { opacity: 1; }
  }
  .detail-backdrop.open .detail-modal {
    animation: modalScaleIn 0.3s ease-out;
  }
  @keyframes modalScaleIn {
    0%   { opacity: 0; transform: scale(0.92) translateY(10px); }
    100% { opacity: 1; transform: scale(1) translateY(0); }
  }

  /* ─── 27. ADMIN PANEL ANIMATION ─── */
  #admin-overlay.open {
    animation: overlayFadeIn 0.2s ease-out;
  }
  .admin-section.active {
    animation: adminSectionIn 0.3s ease-out;
  }
  @keyframes adminSectionIn {
    0%   { opacity: 0; transform: translateY(8px); }
    100% { opacity: 1; transform: translateY(0); }
  }

  /* ─── 28. CART SIDEBAR SLIDE ─── */
  .cart-sidebar {
    transition: right 0.4s cubic-bezier(0.22, 1, 0.36, 1);
  }

  /* ─── 29. LOGIN OVERLAY ANIMATION ─── */
  #login-overlay.open {
    animation: backdropFadeIn 0.3s ease-out;
  }
  #login-overlay.open .login-box {
    animation: modalScaleIn 0.4s ease-out 0.1s both;
  }

  /* ─── 30. NAV MOBILE MENU SMOOTH ─── */
  .nav-links {
    transition: left 0.4s cubic-bezier(0.22, 1, 0.36, 1);
  }

  /* ─── 31. ADMIN DASHBOARD TABLE ROW STAGGER ─── */
  .admin-table-wrap table tbody tr {
    animation: rowFadeIn 0.3s ease-out both;
  }
  .admin-table-wrap table tbody tr:nth-child(1) { animation-delay: 0.02s; }
  .admin-table-wrap table tbody tr:nth-child(2) { animation-delay: 0.06s; }
  .admin-table-wrap table tbody tr:nth-child(3) { animation-delay: 0.1s; }
  .admin-table-wrap table tbody tr:nth-child(4) { animation-delay: 0.14s; }
  .admin-table-wrap table tbody tr:nth-child(5) { animation-delay: 0.18s; }
  .admin-table-wrap table tbody tr:nth-child(6) { animation-delay: 0.22s; }
  .admin-table-wrap table tbody tr:nth-child(7) { animation-delay: 0.26s; }
  .admin-table-wrap table tbody tr:nth-child(8) { animation-delay: 0.3s; }
  @keyframes rowFadeIn {
    0%   { opacity: 0; transform: translateX(-6px); }
    100% { opacity: 1; transform: translateX(0); }
  }

  /* ─── 32. MODAL TRONG ADMIN ─── */
  .modal-backdrop.open {
    animation: backdropFadeIn 0.2s ease-out;
  }
  .modal-backdrop.open .modal {
    animation: modalScaleIn 0.3s ease-out;
  }

  /* ─── 33. LOGO DOT ─── Nâng cấp hiệu ứng pulse ─── */
  @keyframes enhancedPulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.4); opacity: 0.6; }
  }

  .logo-dot {
    animation: enhancedPulse 2s ease-in-out infinite !important;
  }

  /* ─── 34. TOP BAR MARQUEE TỐI ƯU ─── */
  .top-bar-marquee span {
    animation: marquee 25s linear infinite;
  }

  /* ─── 35. PHOTO GALLERY ZOOM TRONG PD-OVERLAY ─── */
  .pd-main-img-wrap:hover .pd-main-img {
    transform: scale(1.03);
  }

  /* ─── 36. RESPONSIVE ANIMATION OPTIMIZATION ─── */
  @media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
      animation-duration: 0.01ms !important;
      animation-iteration-count: 1 !important;
      transition-duration: 0.01ms !important;
    }
  }

  /* ─── 37. LIGHTBOX TRANSITION ─── */
  #pd-lightbox.open {
    animation: overlayFadeIn 0.25s ease-out;
  }
  .pd-lb-img {
    transition: transform 0.15s ease-out;
  }

  /* ─── 38. BLOG-OV-CTA ANIMATION ─── */
  .blog-ov-cta {
    animation: ctaSlideIn 0.5s ease-out 0.2s both;
  }
  @keyframes ctaSlideIn {
    0%   { opacity: 0; transform: translateX(-10px); }
    100% { opacity: 1; transform: translateX(0); }
  }

  /* ─── 39. CART ITEM STAGGER ─── */
  .cart-item {
    animation: rowFadeIn 0.3s ease-out both;
  }
  .cart-item:nth-child(2) { animation-delay: 0.05s; }
  .cart-item:nth-child(3) { animation-delay: 0.1s; }
  .cart-item:nth-child(4) { animation-delay: 0.15s; }
  .cart-item:nth-child(5) { animation-delay: 0.2s; }

  /* ─── 40. CART-COUNT BADGE BOUNCE ─── */
  @keyframes badgePop {
    0%   { transform: scale(0); }
    70%  { transform: scale(1.25); }
    100% { transform: scale(1); }
  }

  .cart-count {
    transition: all 0.2s ease;
    animation: badgePop 0.3s ease-out;
  }

  /* ════════════════════════════════════════════════════════════════
     🎉 MINI CONTACT FLOATING
     ════════════════════════════════════════════════════════════════ */

  /* ─── MINI CONTACT FLOAT (GÓC TRÁI) ─── */
  .mini-contact-float {
    position: fixed;
    left: 20px;
    bottom: 28px;
    z-index: 200;
    background: var(--brand-red);
    color: #ffffff;
    width: 75px;
    height: 75px;
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2px;
    cursor: pointer;
    font-family: 'Barlow Condensed', sans-serif;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: uppercase;
    box-shadow: 0 6px 20px rgba(0,104,255,0.4);
    transition: all 0.3s ease;
    animation: miniContactPulse 2s ease-in-out infinite;
  }
  .mini-contact-float i {
    font-size: 28px;
  }
  .mini-contact-float:hover {
    transform: scale(1.1);
    box-shadow: 0 8px 28px rgba(0,104,255,0.55);
  }

  .mini-contact-pulse {
    position: absolute;
    inset: -4px;
    border-radius: 50%;
    border: 2px solid rgba(0,104,255,0.3);
    animation: miniContactRing 2s ease-in-out infinite;
  }
  @keyframes miniContactRing {
    0%, 100% { transform: scale(1); opacity: 0.6; }
    50% { transform: scale(1.15); opacity: 0; }
  }
  @keyframes miniContactPulse {
    0%, 100% { box-shadow: 0 6px 20px rgba(0,104,255,0.4); }
    50% { box-shadow: 0 6px 35px rgba(0,104,255,0.7), 0 0 0 4px rgba(0,104,255,0.12); }
  }

  /* Khi có interaction, kích hoạt hiệu ứng nhấp nháy */
  .mini-contact-float.alert {
    animation: miniContactAlert 1.2s ease-in-out infinite;
  }
  @keyframes miniContactAlert {
    0%, 100% { 
      box-shadow: 0 6px 20px rgba(0,104,255,0.4);
      transform: scale(1);
    }
    25% { 
      box-shadow: 0 6px 40px rgba(0,104,255,0.8), 0 0 0 6px rgba(0,104,255,0.15);
      transform: scale(1.08);
    }
    50% { 
      box-shadow: 0 6px 20px rgba(0,104,255,0.4);
      transform: scale(1);
    }
    75% { 
      box-shadow: 0 6px 40px rgba(0,104,255,0.8), 0 0 0 6px rgba(0,104,255,0.15);
      transform: scale(1.08);
    }
  }

  /* ─── MINI CONTACT PANEL ─── */
  .mini-contact-panel {
    position: fixed;
    left: 20px;
    bottom: 100px;
    z-index: 199;
    background: #ffffff;
    border: 1px solid var(--light-gray);
    box-shadow: 0 15px 40px rgba(0,0,0,0.12);
    width: 280px;
    padding: 20px;
    display: none;
    animation: miniContactSlideIn 0.35s ease-out;
  }
  .mini-contact-panel.open {
    display: block;
  }
  @keyframes miniContactSlideIn {
    0% { opacity: 0; transform: translateY(10px) scale(0.95); }
    100% { opacity: 1; transform: translateY(0) scale(1); }
  }

  .mini-contact-panel-close {
    position: absolute;
    top: 10px;
    right: 10px;
    background: var(--light-gray);
    border: none;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--body-text);
    font-size: 12px;
    transition: all 0.2s;
  }
  .mini-contact-panel-close:hover {
    background: var(--brand-red);
    color: #ffffff;
  }

  .mini-contact-panel-title {
    font-family: 'Oswald', sans-serif;
    font-size: 18px;
    letter-spacing: 1px;
    color: var(--body-text);
    margin-bottom: 2px;
  }
  .mini-contact-panel-title span {
    color: var(--brand-red);
  }

  .mini-contact-panel-sub {
    font-size: 11px;
    color: var(--gray);
    margin-bottom: 16px;
    font-family: 'Barlow Condensed', sans-serif;
    letter-spacing: 1px;
    text-transform: uppercase;
  }

  .mini-contact-panel-items {
    display: flex;
    flex-direction: column;
    gap: 10px;
  }

  .mini-contact-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 12px;
    text-decoration: none;
    background: var(--dark);
    border: 1px solid var(--light-gray);
    transition: all 0.25s ease;
  }
  .mini-contact-item:hover {
    transform: translateX(4px);
    box-shadow: 0 3px 10px rgba(0,0,0,0.04);
  }

  .mini-contact-item-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    flex-shrink: 0;
  }
  .mini-contact-item-icon.call {
    color: #22c55e;
    background: rgba(34,197,94,0.1);
  }
  .mini-contact-item-icon.zalo {
    color: #0068ff;
    background: rgba(0,104,255,0.1);
  }
  .mini-contact-item-icon.email {
    color: #f97316;
    background: rgba(249,115,22,0.1);
  }

  .mini-contact-item-info {
    flex: 1;
  }
  .mini-contact-item-label {
    font-family: 'Barlow Condensed', sans-serif;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--gray);
  }
  .mini-contact-item-value {
    font-family: 'Oswald', sans-serif;
    font-size: 18px;
    font-weight: 700;
    color: var(--body-text);
  }

  .mini-contact-note {
    font-size: 11px;
    color: var(--gray);
    line-height: 1.5;
    margin-top: 8px;
    padding: 8px 12px;
    background: var(--brand-blue-light);
    border-left: 3px solid var(--brand-red);
  }

  /* ─── PAGINATION (PHÂN TRANG SẢN PHẨM) ─── */
  .pagination-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 10px;
    background: #ffffff;
    border: 1px solid var(--light-gray);
    color: var(--body-text);
    font-family: 'Barlow Condensed', sans-serif;
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 1px;
    cursor: pointer;
    transition: all 0.25s ease;
    user-select: none;
  }
  .pagination-btn:hover:not(:disabled) {
    border-color: var(--brand-red);
    color: var(--brand-red);
    background: var(--brand-blue-light);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,104,255,0.12);
  }
  .pagination-btn.active {
    background: var(--brand-red);
    border-color: var(--brand-red);
    color: #ffffff;
    box-shadow: 0 4px 12px rgba(0,104,255,0.25);
  }
  .pagination-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
  }

  /* Responsive cho mini contact */
  @media (max-width: 600px) {
    .mini-contact-float {
      width: 50px;
      height: 50px;
      left: 14px;
      bottom: 20px;
    }
    .mini-contact-float i {
      font-size: 18px;
    }
    .mini-contact-float span {
      font-size: 8px;
    }
    .mini-contact-panel {
      left: 10px;
      bottom: 82px;
      width: 260px;
    }
  }


/* ─── STAR RATING STYLES ─── */
.star-rating {
  font-size: 24px;
  cursor: pointer;
  transition: all 0.2s ease;
  opacity: 1;
}
.star-rating:hover {
  transform: scale(1.2);
}
.review-card {
  transition: all 0.3s ease;
}
.review-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.12);
}


/* ─── MULTI IMAGE UPLOAD STYLES ─── */
.multi-img-upload-area {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.uploaded-images-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: 12px;
}
.uploaded-img-item {
  position: relative;
  aspect-ratio: 1;
  border-radius: 4px;
  overflow: hidden;
  border: 2px solid var(--light-gray);
  background: #f5f5f5;
}
.uploaded-img-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.uploaded-img-item .delete-img-btn {
  position: absolute;
  top: 4px;
  right: 4px;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: rgba(220, 38, 38, 0.9);
  color: white;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: bold;
  transition: all 0.2s;
}
.uploaded-img-item .delete-img-btn:hover {
  background: rgba(220, 38, 38, 1);
  transform: scale(1.1);
}
.uploaded-img-item .primary-badge {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: rgba(0, 168, 84, 0.9);
  color: white;
  font-size: 10px;
  padding: 2px 4px;
  text-align: center;
  font-weight: 600;
}
.img-upload-btn {
  border: 2px dashed var(--light-gray);
  border-radius: 4px;
  padding: 24px;
  text-align: center;
  cursor: pointer;
  transition: all 0.3s;
  background: #fafafa;
}
.img-upload-btn:hover {
  border-color: var(--brand-blue);
  background: #f0f7ff;
}
.img-upload-btn .upload-icon {
  font-size: 32px;
  margin-bottom: 8px;
}
.img-upload-btn .upload-text {
  font-size: 13px;
  color: var(--gray);
}