:root {
    --forest: #0D3B2E;
    --forest-deep: #091F18;
    --forest-mid: #164835;
    --forest-light: #1E5C42;
    --gold: #D4A017;
    --gold-bright: #F0B429;
    --gold-pale: #F7D98A;
    --gold-dark: #A07910;
    --cream: #FAF7F0;
    --cream-warm: #F2EDE0;
    --text-dark: #1A1A1A;
    --text-mid: #4A4A4A;
    --text-muted: #888;
  }

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

  body {
    font-family: 'Montserrat', sans-serif;
    background: var(--cream);
    color: var(--text-dark);
    overflow-x: hidden;
  }

  /* SCROLLBAR */
  ::-webkit-scrollbar { width: 6px; }
  ::-webkit-scrollbar-track { background: var(--cream-warm); }
  ::-webkit-scrollbar-thumb { background: var(--gold); border-radius: 3px; }

  /* NAV */
  nav {
    position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
    background: var(--forest-deep);
    border-bottom: 1px solid rgba(212,160,23,0.3);
    padding: 0 48px;
    display: flex; align-items: center; justify-content: space-between;
    height: 72px;
    transition: all 0.3s ease;
  }
  nav.scrolled {
    height: 60px;
    background: rgba(9,31,24,0.98);
    backdrop-filter: blur(12px);
  }
  .nav-logo {
    display: flex; align-items: center; gap: 12px; cursor: pointer;
    text-decoration: none;
  }
  .nav-logo-badge {
    width: 40px; height: 40px;
    border: 1.5px solid var(--gold);
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-family: 'Cinzel', serif;
    font-size: 11px; font-weight: 600;
    color: var(--gold);
    letter-spacing: 1px;
  }
  .nav-logo-text {
    font-family: 'Cinzel', serif;
    font-size: 18px; font-weight: 500;
    color: var(--gold);
    letter-spacing: 2px;
  }
  .nav-links {
    display: flex; gap: 36px; list-style: none;
    align-items: center;
  }
  .nav-links a {
    font-family: 'Montserrat', sans-serif;
    font-size: 11px; font-weight: 500;
    letter-spacing: 2px; text-transform: uppercase;
    color: rgba(240,180,41,0.8);
    text-decoration: none;
    position: relative; padding-bottom: 2px;
    transition: color 0.25s;
    cursor: pointer;
  }
  .nav-links a::after {
    content: ''; position: absolute; bottom: 0; left: 0;
    width: 0; height: 1px;
    background: var(--gold-bright);
    transition: width 0.3s ease;
  }
  .nav-links a:hover { color: var(--gold-bright); }
  .nav-links a:hover::after { width: 100%; }
  .nav-right { display: flex; gap: 20px; align-items: center; }
  .nav-icon {
    color: var(--gold);
    font-size: 18px; cursor: pointer;
    transition: color 0.25s;
  }
  .nav-icon:hover { color: var(--gold-bright); }

  /* HERO */
  .hero {
    height: 100vh; min-height: 640px;
    background: var(--forest-deep);
    display: flex; align-items: center; justify-content: center;
    position: relative; overflow: hidden;
  }
  .hero-bg-pattern {
    position: absolute; inset: 0;
    background-image:
      radial-gradient(ellipse 80% 60% at 50% 50%, rgba(30,92,66,0.4) 0%, transparent 70%),
      repeating-linear-gradient(45deg, transparent, transparent 40px, rgba(212,160,23,0.02) 40px, rgba(212,160,23,0.02) 41px);
  }
  .hero-ornament {
    position: absolute;
    border: 1px solid rgba(212,160,23,0.15);
    border-radius: 50%;
  }
  .hero-ornament-1 { width: 600px; height: 600px; top: 50%; left: 50%; transform: translate(-50%,-50%); }
  .hero-ornament-2 { width: 400px; height: 400px; top: 50%; left: 50%; transform: translate(-50%,-50%); }
  .hero-content {
    text-align: center; z-index: 1; padding: 0 24px;
    animation: fadeUp 1.2s ease both;
  }
  .hero-sup {
    font-size: 11px; letter-spacing: 4px; text-transform: uppercase;
    color: var(--gold);
    display: block; margin-bottom: 24px;
    font-weight: 500;
  }
  .hero-title {
    font-family: 'Cormorant Garamond', serif;
    font-size: clamp(52px, 8vw, 96px);
    font-weight: 300;
    color: var(--cream);
    line-height: 1.05;
    margin-bottom: 16px;
    letter-spacing: -1px;
  }
  .hero-title em {
    font-style: italic;
    color: var(--gold-bright);
  }
  .hero-sub {
    font-family: 'Montserrat', sans-serif;
    font-size: 12px; letter-spacing: 3px; text-transform: uppercase;
    color: rgba(212,160,23,0.7);
    margin-bottom: 48px;
  }
  .hero-divider {
    width: 80px; height: 1px; background: linear-gradient(to right, transparent, var(--gold), transparent);
    margin: 0 auto 48px;
  }
  .btn-hero {
    display: inline-block;
    padding: 14px 44px;
    border: 1px solid var(--gold);
    font-family: 'Montserrat', sans-serif;
    font-size: 11px; font-weight: 500;
    letter-spacing: 3px; text-transform: uppercase;
    color: var(--gold);
    cursor: pointer;
    background: transparent;
    transition: all 0.35s ease;
    text-decoration: none;
    position: relative; overflow: hidden;
  }
  .btn-hero::before {
    content: '';
    position: absolute; inset: 0;
    background: var(--gold);
    transform: translateX(-100%);
    transition: transform 0.35s ease;
    z-index: -1;
  }
  .btn-hero:hover { color: var(--forest-deep); }
  .btn-hero:hover::before { transform: translateX(0); }
  .hero-scroll {
    position: absolute; bottom: 36px; left: 50%; transform: translateX(-50%);
    display: flex; flex-direction: column; align-items: center; gap: 8px;
    color: rgba(212,160,23,0.5);
    font-size: 10px; letter-spacing: 2px; text-transform: uppercase;
    animation: bounce 2s infinite;
  }
  .hero-scroll-line {
    width: 1px; height: 40px;
    background: linear-gradient(to bottom, var(--gold), transparent);
  }

  /* MARQUEE */
  .marquee-strip {
    background: var(--gold);
    padding: 12px 0;
    overflow: hidden; white-space: nowrap;
  }
  .marquee-inner {
    display: inline-flex; gap: 0;
    animation: marquee 25s linear infinite;
  }
  .marquee-item {
    font-family: 'Cinzel', serif;
    font-size: 11px; letter-spacing: 2px;
    color: var(--forest-deep);
    padding: 0 32px;
    font-weight: 500;
  }
  .marquee-dot {
    color: var(--forest-mid); opacity: 0.6;
    font-size: 6px; align-self: center;
  }

  /* CATEGORIES */
  .section { padding: 96px 64px; }
  .section-header { text-align: center; margin-bottom: 64px; }
  .section-label {
    font-size: 10px; letter-spacing: 4px; text-transform: uppercase;
    color: var(--gold-dark);
    font-weight: 600;
    display: block; margin-bottom: 16px;
  }
  .section-title {
    font-family: 'Cormorant Garamond', serif;
    font-size: clamp(32px, 4vw, 52px);
    font-weight: 300;
    color: var(--forest-deep);
    line-height: 1.15;
  }
  .section-divider {
    width: 60px; height: 1px;
    background: linear-gradient(to right, transparent, var(--gold), transparent);
    margin: 20px auto 0;
  }

  .categories-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 20px;
    max-width: 1300px; margin: 0 auto;
  }
  .cat-card {
    cursor: pointer; position: relative; overflow: hidden;
    aspect-ratio: 3/4;
    background: var(--forest-mid);
    transition: transform 0.4s ease;
  }
  .cat-card:hover { transform: translateY(-6px); }
  .cat-card:hover .cat-overlay { background: rgba(9,31,24,0.5); }
  .cat-card:hover .cat-img-placeholder { transform: scale(1.06); }
  .cat-card:hover .cat-btn { opacity: 1; transform: translateY(0); }
  .cat-img-placeholder {
    position: absolute; inset: 0;
    transition: transform 0.6s ease;
    display: flex; align-items: center; justify-content: center;
    font-size: 64px;
  }
  .cat-overlay {
    position: absolute; inset: 0;
    background: rgba(9,31,24,0.35);
    display: flex; flex-direction: column;
    align-items: center; justify-content: flex-end;
    padding: 24px 16px;
    transition: background 0.4s ease;
  }
  .cat-name {
    font-family: 'Cinzel', serif;
    font-size: 13px; letter-spacing: 2px; text-transform: uppercase;
    color: var(--cream);
    margin-bottom: 6px;
    text-align: center;
  }
  .cat-count {
    font-size: 10px; letter-spacing: 1px;
    color: var(--gold-pale);
    font-weight: 400;
    margin-bottom: 16px;
  }
  .cat-btn {
    font-size: 9px; letter-spacing: 2px; text-transform: uppercase;
    color: var(--gold);
    border: 1px solid var(--gold);
    padding: 6px 20px;
    font-family: 'Montserrat', sans-serif;
    opacity: 0; transform: translateY(8px);
    transition: all 0.3s ease;
    background: transparent;
    cursor: pointer;
  }
  .cat-btn:hover { background: var(--gold); color: var(--forest-deep); }

  /* Unique category colors */
  .cat-1 .cat-img-placeholder { background: linear-gradient(135deg, #1a4a3a 0%, #0d2e24 100%); }
  .cat-2 .cat-img-placeholder { background: linear-gradient(135deg, #2a3a1a 0%, #1a2a0d 100%); }
  .cat-3 .cat-img-placeholder { background: linear-gradient(135deg, #3a2a1a 0%, #2a1a0d 100%); }
  .cat-4 .cat-img-placeholder { background: linear-gradient(135deg, #1a2a3a 0%, #0d1a2e 100%); }
  .cat-5 .cat-img-placeholder { background: linear-gradient(135deg, #2a1a3a 0%, #1a0d2e 100%); }

  /* PRODUCT LISTING (hidden by default) */
  #product-listing {
    display: none; padding: 80px 64px;
    max-width: 1400px; margin: 0 auto;
  }
  #product-listing.active { display: block; }
  .listing-header {
    display: flex; align-items: baseline; justify-content: space-between;
    margin-bottom: 48px; padding-bottom: 24px;
    border-bottom: 1px solid rgba(13,59,46,0.15);
  }
  .listing-title {
    font-family: 'Cormorant Garamond', serif;
    font-size: 40px; font-weight: 300;
    color: var(--forest-deep);
  }
  .listing-count {
    font-size: 12px; letter-spacing: 2px; text-transform: uppercase;
    color: var(--text-muted);
    font-weight: 400;
  }
  .back-btn {
    display: inline-flex; align-items: center; gap: 8px;
    font-size: 11px; letter-spacing: 2px; text-transform: uppercase;
    color: var(--gold-dark);
    cursor: pointer; border: none; background: none;
    font-family: 'Montserrat', sans-serif;
    margin-bottom: 32px;
    transition: color 0.25s;
    font-weight: 500;
  }
  .back-btn:hover { color: var(--forest-deep); }

  .products-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 28px;
  }
  .product-card {
    cursor: pointer;
    transition: transform 0.35s ease;
  }
  .product-card:hover { transform: translateY(-4px); }
  .product-card:hover .prod-img { background-position: center 40%; }
  .product-card:hover .prod-hover-overlay { opacity: 1; }
  .product-card:hover .prod-quick { opacity: 1; transform: translateY(0); }
  .prod-img-wrap {
    position: relative; overflow: hidden;
    background: var(--cream-warm);
    aspect-ratio: 1/1.1;
    margin-bottom: 16px;
  }
  .prod-img {
    position: absolute; inset: 0;
    display: flex; align-items: center; justify-content: center;
    font-size: 72px;
    transition: transform 0.5s ease;
  }
  .prod-img:hover { transform: scale(1.04); }
  .prod-hover-overlay {
    position: absolute; inset: 0;
    background: rgba(13,59,46,0.08);
    opacity: 0; transition: opacity 0.35s ease;
  }
  .prod-quick {
    position: absolute; bottom: 0; left: 0; right: 0;
    padding: 12px 16px;
    background: var(--forest-deep);
    font-size: 10px; letter-spacing: 2px; text-transform: uppercase;
    color: var(--gold);
    font-family: 'Montserrat', sans-serif; font-weight: 500;
    text-align: center;
    opacity: 0; transform: translateY(100%);
    transition: all 0.3s ease;
    cursor: pointer;
  }
  .prod-badge {
    position: absolute; top: 12px; left: 12px;
    font-size: 9px; letter-spacing: 1.5px; text-transform: uppercase;
    padding: 4px 10px;
    font-family: 'Montserrat', sans-serif; font-weight: 500;
  }
  .badge-new { background: var(--forest-deep); color: var(--gold); }
  .badge-hot { background: var(--gold); color: var(--forest-deep); }
  .badge-out { background: rgba(0,0,0,0.6); color: #fff; }
  .prod-name {
    font-family: 'Cormorant Garamond', serif;
    font-size: 18px; font-weight: 400;
    color: var(--forest-deep);
    margin-bottom: 4px;
    line-height: 1.3;
  }
  .prod-sub {
    font-size: 11px; color: var(--text-muted);
    letter-spacing: 0.5px; margin-bottom: 10px;
  }
  .prod-price {
    font-family: 'Montserrat', sans-serif;
    font-size: 14px; font-weight: 500;
    color: var(--gold-dark);
    letter-spacing: 1px;
  }

  /* PRODUCT DETAIL */
  #product-detail {
    display: none; padding: 80px 64px;
    max-width: 1200px; margin: 0 auto;
  }
  #product-detail.active { display: block; }
  .detail-grid {
    display: grid; grid-template-columns: 1fr 1fr; gap: 80px;
    align-items: start;
  }
  .detail-images { position: sticky; top: 100px; }
  .detail-main-img {
    background: var(--cream-warm);
    aspect-ratio: 1/1;
    display: flex; align-items: center; justify-content: center;
    font-size: 160px;
    margin-bottom: 16px;
    overflow: hidden;
  }
  .detail-thumbs { display: flex; gap: 12px; }
  .detail-thumb {
    width: 80px; height: 80px;
    background: var(--cream-warm);
    display: flex; align-items: center; justify-content: center;
    font-size: 32px;
    cursor: pointer; border: 2px solid transparent;
    transition: border-color 0.25s;
  }
  .detail-thumb.active { border-color: var(--gold); }
  .detail-info { padding-top: 12px; }
  .detail-brand {
    font-size: 10px; letter-spacing: 3px; text-transform: uppercase;
    color: var(--gold-dark); font-weight: 600;
    display: block; margin-bottom: 12px;
  }
  .detail-name {
    font-family: 'Cormorant Garamond', serif;
    font-size: 38px; font-weight: 300;
    color: var(--forest-deep);
    line-height: 1.15; margin-bottom: 8px;
  }
  .detail-variant {
    font-size: 13px; color: var(--text-muted);
    margin-bottom: 24px; letter-spacing: 0.5px;
  }
  .detail-divider {
    width: 100%; height: 1px;
    background: rgba(13,59,46,0.12);
    margin: 24px 0;
  }
  .detail-price-wrap { margin-bottom: 28px; }
  .detail-price {
    font-family: 'Cormorant Garamond', serif;
    font-size: 36px; font-weight: 400;
    color: var(--forest-deep);
  }
  .detail-price-note {
    font-size: 11px; color: var(--text-muted);
    margin-top: 4px; letter-spacing: 0.5px;
  }
  .detail-status {
    display: inline-flex; align-items: center; gap: 8px;
    margin-bottom: 32px;
  }
  .status-dot {
    width: 8px; height: 8px; border-radius: 50%;
  }
  .status-dot.in { background: #2E7D32; }
  .status-dot.low { background: #F57F17; }
  .status-dot.out { background: #C62828; }
  .status-text {
    font-size: 12px; letter-spacing: 1px;
    font-weight: 500;
  }
  .status-text.in { color: #2E7D32; }
  .status-text.low { color: #F57F17; }
  .status-text.out { color: #C62828; }

  /* Material options */
  .options-label {
    font-size: 10px; letter-spacing: 2px; text-transform: uppercase;
    color: var(--text-mid); font-weight: 600;
    margin-bottom: 12px; display: block;
  }
  .material-options { display: flex; gap: 10px; margin-bottom: 28px; }
  .mat-opt {
    padding: 8px 20px;
    border: 1px solid rgba(13,59,46,0.25);
    font-size: 11px; letter-spacing: 1px;
    color: var(--text-mid);
    cursor: pointer;
    transition: all 0.25s;
    font-family: 'Montserrat', sans-serif;
    font-weight: 400;
  }
  .mat-opt.active, .mat-opt:hover {
    border-color: var(--forest-deep);
    background: var(--forest-deep);
    color: var(--gold);
  }

  .btn-add-cart {
    width: 100%;
    padding: 16px 32px;
    background: var(--forest-deep);
    color: var(--gold);
    border: none;
    font-family: 'Montserrat', sans-serif;
    font-size: 11px; font-weight: 500;
    letter-spacing: 3px; text-transform: uppercase;
    cursor: pointer;
    margin-bottom: 12px;
    transition: all 0.3s ease;
  }
  .btn-add-cart:hover { background: var(--forest-light); }
  .btn-contact {
    width: 100%;
    padding: 14px 32px;
    background: transparent;
    color: var(--forest-deep);
    border: 1px solid rgba(13,59,46,0.4);
    font-family: 'Montserrat', sans-serif;
    font-size: 11px; font-weight: 500;
    letter-spacing: 3px; text-transform: uppercase;
    cursor: pointer;
    margin-bottom: 28px;
    transition: all 0.3s ease;
  }
  .btn-contact:hover { border-color: var(--forest-deep); background: rgba(13,59,46,0.04); }

  .detail-specs { margin-top: 32px; }
  .spec-row {
    display: flex; justify-content: space-between;
    padding: 12px 0;
    border-bottom: 1px solid rgba(13,59,46,0.08);
    font-size: 13px;
  }
  .spec-key { color: var(--text-muted); font-weight: 400; }
  .spec-val { color: var(--text-dark); font-weight: 500; }

  /* ABOUT STRIP */
  .about-strip {
    background: var(--forest-deep);
    padding: 80px 64px;
    text-align: center;
  }
  .about-strip .section-title { color: var(--cream); }
  .about-strip .section-label { color: var(--gold); }
  .about-strip .section-divider { opacity: 0.5; }
  .about-text {
    font-family: 'Cormorant Garamond', serif;
    font-size: 20px; font-weight: 300; font-style: italic;
    color: rgba(250,247,240,0.75);
    max-width: 700px; margin: 24px auto 0;
    line-height: 1.7;
  }
  .trust-badges {
    display: flex; justify-content: center; gap: 64px;
    margin-top: 56px;
  }
  .trust-item { text-align: center; }
  .trust-number {
    font-family: 'Cormorant Garamond', serif;
    font-size: 48px; font-weight: 300;
    color: var(--gold);
    display: block;
  }
  .trust-label {
    font-size: 10px; letter-spacing: 3px; text-transform: uppercase;
    color: rgba(212,160,23,0.6);
    font-weight: 500;
  }

  /* FOOTER */
  footer {
    background: var(--forest-deep);
    border-top: 1px solid rgba(212,160,23,0.2);
    padding: 48px 64px 32px;
    display: flex; justify-content: space-between; align-items: center;
    flex-wrap: wrap; gap: 24px;
  }
  .footer-logo {
    font-family: 'Cinzel', serif;
    font-size: 20px; font-weight: 500;
    color: var(--gold);
    letter-spacing: 3px;
  }
  .footer-copy {
    font-size: 11px; color: rgba(212,160,23,0.4);
    letter-spacing: 1px;
  }
  .footer-links { display: flex; gap: 24px; }
  .footer-links a {
    font-size: 10px; letter-spacing: 2px; text-transform: uppercase;
    color: rgba(212,160,23,0.5);
    text-decoration: none; cursor: pointer;
    transition: color 0.25s;
  }
  .footer-links a:hover { color: var(--gold); }

  /* ANIMATIONS */
  @keyframes fadeUp {
    from { opacity: 0; transform: translateY(32px); }
    to { opacity: 1; transform: translateY(0); }
  }
  @keyframes bounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(8px); }
  }
  @keyframes marquee {
    from { transform: translateX(0); }
    to { transform: translateX(-50%); }
  }

  /* PAGE TRANSITION */
  .page { transition: opacity 0.35s ease; }
  .page.fade-out { opacity: 0; pointer-events: none; }

  /* MAIN SITE VIEW */
  #site-home { display: block; }
  #site-home.hidden { display: none; }

  /* Notification */
  .notif {
    position: fixed; bottom: 32px; right: 32px; z-index: 9999;
    background: var(--forest-deep);
    border: 1px solid var(--gold);
    color: var(--cream);
    padding: 16px 24px;
    font-size: 12px; letter-spacing: 1px;
    transform: translateX(120%);
    transition: transform 0.4s cubic-bezier(0.23, 1, 0.32, 1);
    max-width: 280px;
  }
  .notif.show { transform: translateX(0); }
  .notif-title { color: var(--gold); font-weight: 500; margin-bottom: 4px; font-size: 11px; letter-spacing: 1.5px; text-transform: uppercase; }

  /* Responsive */
  @media (max-width: 900px) {
    nav { padding: 0 24px; }
    .nav-links { display: none; }
    .section { padding: 64px 24px; }
    .categories-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
    .categories-grid .cat-card:last-child { grid-column: 1 / -1; aspect-ratio: 2/1; }
    .products-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
    .detail-grid { grid-template-columns: 1fr; gap: 32px; }
    .detail-images { position: static; }
    footer { flex-direction: column; text-align: center; }
    #product-listing, #product-detail { padding: 64px 24px; }
    .trust-badges { gap: 32px; }
  }

/* REAL PRODUCT IMAGES */
.prod-img img, .detail-main-img img, .detail-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.prod-img.no-image, .detail-main-img.no-image, .detail-thumb.no-image {
  background: radial-gradient(circle at 50% 40%, rgba(240,180,41,0.18), transparent 42%), var(--cream-warm);
}

/* FLOATING CONTACTS */
.floating-contact {
  position: fixed;
  right: 22px;
  bottom: 22px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  z-index: 9998;
}
.float-btn {
  text-decoration: none;
  border-radius: 999px;
  padding: 11px 16px;
  font-size: 11px;
  letter-spacing: 1px;
  font-weight: 600;
  box-shadow: 0 10px 26px rgba(0,0,0,0.18);
  transition: transform .25s ease, opacity .25s ease;
  text-align: center;
}
.float-btn:hover { transform: translateY(-2px); opacity: .92; }
.float-btn.zalo { background: #0068ff; color: #fff; }
.float-btn.fb { background: #1877f2; color: #fff; }
.float-btn.map { background: var(--forest-deep); color: var(--gold); border: 1px solid rgba(212,160,23,.6); }

.btn-add-cart:disabled { opacity: .45 !important; cursor: not-allowed !important; }

@media (max-width: 900px) {
  .floating-contact { right: 14px; bottom: 14px; }
  .float-btn { padding: 10px 13px; font-size: 10px; }
  .listing-header { flex-direction: column; gap: 10px; }
  .hero-title { font-size: clamp(46px, 14vw, 72px); }
}