/* ══════════════════════════════════════════════════════════════════
   SHOP GIÀY DÉP — DARK-ENERGY
   Font: Space Grotesk 400/500/700/800 (heading + body, unified)
   Tone: full dark dominant | Identity: DARK-ENERGY
   Accent: Volt Lime #d4ff3f | Secondary: Electric Cyan #00e5ff
   Nav: Nav-3 Dark Floating Pill | Hero: H1 Full-Screen Overlay
   Prefix: gd- (giay-dep)
   Layouts: FULL-BLEED · GRID-CARDS · BENTO-GRID ·
            STAT-BAR · HORIZONTAL-SCROLL · FEATURE-ICON-ROW
   ══════════════════════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&display=swap');

/* ── CSS Custom Properties ── */
:root {
  --bg:              #0a0e0c;
  --surface:         #121815;
  --dark:            #050706;
  --dark2:           #0d1210;
  --border:          rgba(255,255,255,.09);
  --border-light:    rgba(255,255,255,.15);
  --text:            #f5f7f5;
  --text-2:          rgba(245,247,245,.62);
  --text-3:          rgba(245,247,245,.38);
  --accent:          #d4ff3f;
  --accent-h:        #c2ec2c;
  --accent-light:    rgba(212,255,63,.12);
  --accent-mid:      #e8ff8a;
  --cyan:            #00e5ff;
  --cyan-light:      rgba(0,229,255,.12);
  --sale:            #ff3b5c;
  --sale-light:      rgba(255,59,92,.14);
  --heading:         'Space Grotesk', sans-serif;
  --sans:            'Space Grotesk', sans-serif;
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--sans);
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
  line-height: 1.6;
  overflow-x: hidden;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { font-family: var(--sans); cursor: pointer; border: none; background: none; color: inherit; }
input, textarea, select { font-family: var(--sans); }

/* ── Layout ── */
.gd-container    { max-width: 1280px; margin: 0 auto; padding: 0 clamp(16px, 4vw, 64px); }
.gd-container-sm { max-width: 980px;  margin: 0 auto; padding: 0 clamp(16px, 4vw, 64px); }
.gd-sec    { padding: clamp(64px, 9vw, 128px) 0; }
.gd-sec-sm { padding: clamp(40px, 5vw, 72px) 0; }

/* ── Section Header ── */
.gd-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--sans);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}
.gd-eyebrow::before {
  content: '';
  width: 8px; height: 8px;
  background: var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 12px var(--accent);
}
.gd-sec-title {
  font-family: var(--heading);
  font-size: clamp(30px, 4.4vw, 56px);
  font-weight: 800;
  line-height: 1.06;
  letter-spacing: -.01em;
  color: var(--text);
  margin-bottom: 16px;
}
.gd-sec-title em {
  font-style: normal;
  color: var(--accent);
}
.gd-sec-sub {
  font-size: 16px;
  font-weight: 400;
  color: var(--text-2);
  max-width: 540px;
  line-height: 1.7;
}

/* ── Buttons ── */
.gd-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--heading);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .04em;
  padding: 14px 30px;
  border-radius: 999px;
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: all .25s;
  white-space: nowrap;
}
.gd-btn-primary {
  background: var(--accent);
  color: #0a0e0c;
  border-color: var(--accent);
}
.gd-btn-primary:hover {
  background: var(--accent-h);
  box-shadow: 0 0 0 6px var(--accent-light);
}
.gd-btn-outline {
  background: transparent;
  color: var(--text);
  border-color: rgba(255,255,255,.25);
}
.gd-btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
  box-shadow: 0 0 0 6px var(--accent-light);
}
.gd-btn-cyan {
  background: transparent;
  color: var(--cyan);
  border-color: rgba(0,229,255,.4);
}
.gd-btn-cyan:hover { background: var(--cyan-light); box-shadow: 0 0 0 6px var(--cyan-light); }
.gd-btn-ghost {
  background: rgba(255,255,255,.05);
  color: var(--text-2);
  border-color: rgba(255,255,255,.1);
}
.gd-btn-ghost:hover { background: rgba(255,255,255,.09); color: var(--text); }
.gd-btn-sm { padding: 10px 20px; font-size: 12px; }
.gd-btn-lg { padding: 17px 38px; font-size: 14px; }

/* ── Reveal Animation ── */
[data-reveal] { opacity: 0; transform: translateY(32px); transition: opacity .7s, transform .7s; }
[data-reveal].visible { opacity: 1; transform: none; }
[data-reveal][data-delay="1"] { transition-delay: .08s; }
[data-reveal][data-delay="2"] { transition-delay: .16s; }
[data-reveal][data-delay="3"] { transition-delay: .24s; }
[data-reveal][data-delay="4"] { transition-delay: .32s; }
[data-reveal][data-delay="5"] { transition-delay: .4s; }

/* ══════════════════════════════════════════════════════════════════
   PRODUCT CARD — dark bg, accent border-left, hover neon glow
   ══════════════════════════════════════════════════════════════════ */
.gd-prod-card {
  background: var(--surface);
  border-radius: 4px;
  border-left: 3px solid transparent;
  overflow: hidden;
  position: relative;
  transition: border-color .25s, box-shadow .25s, transform .25s;
}
.gd-prod-card:hover {
  border-left-color: var(--accent);
  box-shadow: -6px 0 28px rgba(212,255,63,.14);
  transform: translateY(-4px);
}
.gd-prod-thumb {
  aspect-ratio: 1/1;
  overflow: hidden;
  position: relative;
  background: #1a2119;
}
.gd-prod-thumb img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform .5s;
}
.gd-prod-card:hover .gd-prod-thumb img { transform: scale(1.08) rotate(-1deg); }

.gd-prod-badge {
  position: absolute;
  top: 12px; left: 12px;
  background: var(--accent);
  color: #0a0e0c;
  font-family: var(--heading);
  font-size: 11px;
  font-weight: 800;
  padding: 5px 12px;
  border-radius: 999px;
  text-transform: uppercase;
  letter-spacing: .04em;
  z-index: 2;
}
.gd-prod-badge.sale { background: var(--sale); color: #fff; }
.gd-prod-badge.new  { background: var(--cyan); color: #0a0e0c; }

.gd-prod-actions {
  position: absolute;
  top: 12px; right: 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  opacity: 0;
  transform: translateX(8px);
  transition: opacity .25s, transform .25s;
  z-index: 2;
}
.gd-prod-card:hover .gd-prod-actions { opacity: 1; transform: none; }
.gd-prod-action-btn {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: rgba(10,14,12,.75);
  backdrop-filter: blur(6px);
  border: 1px solid rgba(255,255,255,.12);
  color: var(--text);
  display: flex; align-items: center; justify-content: center;
  font-size: 15px;
  transition: all .2s;
}
.gd-prod-action-btn:hover { background: var(--accent); color: #0a0e0c; border-color: var(--accent); }

.gd-prod-info { padding: 20px; }
.gd-prod-cat {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 8px;
}
.gd-prod-name {
  font-family: var(--heading);
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 12px;
  line-height: 1.35;
}
.gd-prod-name a { transition: color .2s; }
.gd-prod-name a:hover { color: var(--accent); }
.gd-prod-footer { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.gd-prod-price-new { font-family: var(--heading); font-size: 16px; font-weight: 700; color: var(--text); }
.gd-prod-price-old { font-size: 13px; color: var(--text-3); text-decoration: line-through; margin-left: 8px; }
.gd-add-cart {
  width: 38px; height: 38px;
  border-radius: 50%;
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.12);
  color: var(--text);
  display: flex; align-items: center; justify-content: center;
  font-size: 15px;
  transition: all .2s;
  flex-shrink: 0;
}
.gd-add-cart:hover { background: var(--accent); color: #0a0e0c; border-color: var(--accent); }

/* ─────────────────────────────────────────────
   NAV-3 Dark Floating Pill
───────────────────────────────────────────── */
#gd-nav {
  position: fixed;
  top: 16px; left: 50%;
  transform: translateX(-50%);
  width: calc(100% - 32px);
  max-width: 1180px;
  z-index: 1000;
  background: rgba(13,18,16,.82);
  backdrop-filter: blur(18px);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 999px;
  box-shadow: 0 20px 50px rgba(0,0,0,.4);
  transition: box-shadow .3s;
}
.gd-nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 20px;
  padding: 10px 10px 10px 24px;
  height: 64px;
}
.gd-logo {
  font-family: var(--heading);
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -.02em;
  color: var(--text);
  flex-shrink: 0;
}
.gd-logo span { color: var(--accent); }
.gd-nav-links { display: flex; align-items: center; gap: 30px; }
.gd-nav-links a {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-2);
  transition: color .2s;
  position: relative;
}
.gd-nav-links a:hover, .gd-nav-links a.active { color: var(--text); }
.gd-nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: -18px; left: 0;
  width: 5px; height: 5px;
  background: var(--accent);
  border-radius: 50%;
  left: 50%; transform: translateX(-50%);
  box-shadow: 0 0 8px var(--accent);
}
.gd-nav-right { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.gd-nav-cart {
  position: relative;
  width: 42px; height: 42px;
  border-radius: 50%;
  background: rgba(255,255,255,.06);
  display: flex; align-items: center; justify-content: center;
  color: var(--text);
  font-size: 17px;
  transition: background .2s;
}
.gd-nav-cart:hover { background: rgba(255,255,255,.12); }
.gd-cart-count {
  position: absolute;
  top: -3px; right: -3px;
  width: 18px; height: 18px;
  background: var(--accent);
  color: #0a0e0c;
  border-radius: 50%;
  font-size: 10px;
  font-weight: 800;
  display: flex; align-items: center; justify-content: center;
}
.gd-nav-cta {
  background: var(--accent);
  color: #0a0e0c;
  font-family: var(--heading);
  font-weight: 800;
  font-size: 13px;
  padding: 12px 24px;
  border-radius: 999px;
  transition: all .2s;
}
.gd-nav-cta:hover { background: var(--accent-h); box-shadow: 0 0 0 5px var(--accent-light); }

#gd-burger {
  display: none;
  width: 42px; height: 42px;
  border-radius: 50%;
  background: rgba(255,255,255,.06);
  flex-direction: column;
  align-items: center; justify-content: center;
  gap: 5px;
}
#gd-burger span { width: 18px; height: 2px; background: var(--text); transition: all .25s; border-radius: 2px; }
#gd-burger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
#gd-burger.open span:nth-child(2) { opacity: 0; }
#gd-burger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

#gd-nav-mob {
  position: fixed;
  top: 0; right: -100%;
  width: min(320px, 84vw);
  height: 100vh;
  background: var(--dark2);
  z-index: 1100;
  padding: 100px 32px 32px;
  display: flex; flex-direction: column; gap: 4px;
  transition: right .35s cubic-bezier(.4,0,.2,1);
  border-left: 1px solid rgba(255,255,255,.08);
}
#gd-nav-mob.open { right: 0; }
#gd-nav-mob a {
  font-family: var(--heading);
  font-size: 20px;
  font-weight: 700;
  color: var(--text-2);
  padding: 14px 0;
  border-bottom: 1px solid rgba(255,255,255,.06);
}
#gd-nav-mob a.active { color: var(--accent); }

/* ══════════════════════════════════════════════════════════════════
   HERO — H1 Full-Screen Overlay
   ══════════════════════════════════════════════════════════════════ */
.gd-hero {
  position: relative;
  min-height: 100vh;
  display: flex; align-items: center;
  padding-top: 110px;
  overflow: hidden;
}
.gd-hero-bg {
  position: absolute; inset: 0;
  z-index: 0;
}
.gd-hero-bg img {
  width: 100%; height: 100%; object-fit: cover;
  opacity: .34;
}
.gd-hero-bg::after {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(10,14,12,.5) 0%, rgba(10,14,12,.88) 68%, var(--bg) 100%);
}
.gd-hero-inner { position: relative; z-index: 1; max-width: 760px; }
.gd-hero-tag {
  display: inline-flex; align-items: center; gap: 10px;
  background: rgba(212,255,63,.1);
  border: 1px solid rgba(212,255,63,.3);
  color: var(--accent);
  font-size: 13px; font-weight: 600;
  padding: 8px 18px;
  border-radius: 999px;
  margin-bottom: 28px;
}
.gd-hero-title {
  font-family: var(--heading);
  font-size: clamp(44px, 8vw, 96px);
  font-weight: 800;
  line-height: .98;
  letter-spacing: -.02em;
  color: var(--text);
  margin-bottom: 24px;
  text-transform: uppercase;
}
.gd-hero-title em { font-style: normal; color: var(--accent); }
.gd-hero-desc {
  font-size: 18px;
  color: var(--text-2);
  max-width: 480px;
  line-height: 1.7;
  margin-bottom: 36px;
}
.gd-hero-actions { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 44px; }
.gd-hero-stats { display: flex; gap: 40px; flex-wrap: wrap; }
.gd-hero-stat-num {
  font-family: var(--heading);
  font-size: 28px;
  font-weight: 800;
  color: var(--accent);
}
.gd-hero-stat-label { font-size: 13px; color: var(--text-3); margin-top: 2px; }

/* ══════════════════════════════════════════════════════════════════
   CATEGORY GRID-CARDS
   ══════════════════════════════════════════════════════════════════ */
.gd-cat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 48px;
}
.gd-cat-card {
  position: relative;
  aspect-ratio: 3/4;
  border-radius: 4px;
  overflow: hidden;
  border: 1px solid var(--border);
}
.gd-cat-card img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s, filter .4s; filter: saturate(.7) brightness(.75); }
.gd-cat-card:hover img { transform: scale(1.06); filter: saturate(1) brightness(.9); }
.gd-cat-card::before {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(5,7,6,.92) 100%);
  z-index: 1;
}
.gd-cat-info {
  position: absolute; left: 0; right: 0; bottom: 0;
  padding: 22px;
  z-index: 2;
}
.gd-cat-info h3 { font-family: var(--heading); font-size: 19px; font-weight: 700; color: #fff; text-transform: uppercase; }
.gd-cat-info p { font-size: 12px; color: var(--accent); margin-top: 4px; font-weight: 600; }

/* ══════════════════════════════════════════════════════════════════
   BENTO-GRID (featured products)
   ══════════════════════════════════════════════════════════════════ */
.gd-bento {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-auto-rows: 1fr;
  gap: 20px;
  margin-top: 44px;
}
.gd-bento .gd-prod-card:first-child { grid-column: span 2; grid-row: span 2; }
.gd-bento .gd-prod-card:first-child .gd-prod-thumb { aspect-ratio: auto; height: 100%; }

.gd-section-header { display: flex; justify-content: space-between; align-items: flex-end; gap: 20px; flex-wrap: wrap; }

/* ══════════════════════════════════════════════════════════════════
   FEATURE-ICON-ROW (why choose us)
   ══════════════════════════════════════════════════════════════════ */
.gd-feat-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  margin-top: 48px;
}
.gd-feat-item { text-align: left; }
.gd-feat-icon {
  width: 52px; height: 52px;
  border-radius: 14px;
  background: var(--accent-light);
  color: var(--accent);
  display: flex; align-items: center; justify-content: center;
  font-size: 22px;
  margin-bottom: 18px;
}
.gd-feat-item h3 { font-family: var(--heading); font-size: 17px; font-weight: 700; margin-bottom: 8px; }
.gd-feat-item p { font-size: 14px; color: var(--text-2); line-height: 1.65; }

/* ══════════════════════════════════════════════════════════════════
   FULL-BLEED PROMO
   ══════════════════════════════════════════════════════════════════ */
.gd-promo {
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}
.gd-promo-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 60px;
  padding: clamp(56px, 8vw, 96px) 0;
}
.gd-promo-label { font-family: var(--heading); font-size: 12px; font-weight: 700; letter-spacing: .16em; text-transform: uppercase; color: var(--cyan); margin-bottom: 18px; }
.gd-promo-title { font-family: var(--heading); font-size: clamp(32px, 4.6vw, 56px); font-weight: 800; line-height: 1.02; text-transform: uppercase; margin-bottom: 20px; }
.gd-promo-title em { color: var(--accent); font-style: normal; }
.gd-promo-sub { font-size: 15px; color: var(--text-2); line-height: 1.7; max-width: 440px; margin-bottom: 32px; }
.gd-promo-timer { display: flex; gap: 14px; margin-bottom: 32px; }
.gd-timer-unit { background: var(--dark2); border: 1px solid var(--border); border-radius: 8px; padding: 14px 16px; min-width: 68px; text-align: center; }
.gd-timer-num { font-family: var(--heading); font-size: 26px; font-weight: 800; color: var(--accent); }
.gd-timer-label { font-size: 10px; color: var(--text-3); text-transform: uppercase; letter-spacing: .08em; margin-top: 2px; }
.gd-promo-visual { position: relative; aspect-ratio: 4/3; border-radius: 4px; overflow: hidden; }
.gd-promo-visual img { width: 100%; height: 100%; object-fit: cover; }
.gd-promo-tag {
  position: absolute; top: 20px; right: 20px;
  background: var(--sale); color: #fff;
  font-family: var(--heading); font-weight: 800; font-size: 14px;
  padding: 10px 18px; border-radius: 999px;
}

/* ══════════════════════════════════════════════════════════════════
   HORIZONTAL-SCROLL TESTIMONIALS
   ══════════════════════════════════════════════════════════════════ */
.gd-reviews-scroll {
  display: flex; gap: 20px;
  overflow-x: auto; scroll-snap-type: x mandatory;
  padding: 44px 0 12px;
  scrollbar-width: thin;
}
.gd-review-card {
  scroll-snap-align: start;
  flex: 0 0 340px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 28px;
}
.gd-review-stars { color: var(--accent); font-size: 14px; margin-bottom: 16px; }
.gd-review-text { font-size: 14.5px; color: var(--text-2); line-height: 1.75; margin-bottom: 22px; min-height: 95px; }
.gd-review-author { display: flex; align-items: center; gap: 12px; }
.gd-review-avatar {
  width: 40px; height: 40px; border-radius: 50%;
  background: var(--accent-light); color: var(--accent);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--heading); font-weight: 700;
}
.gd-review-name { font-size: 14px; font-weight: 600; color: var(--text); }
.gd-review-sub { font-size: 12px; color: var(--text-3); }

/* ══════════════════════════════════════════════════════════════════
   STAT-BAR
   ══════════════════════════════════════════════════════════════════ */
.gd-stats { background: var(--dark2); border-top: 1px solid var(--border); }
.gd-stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); text-align: center; }
.gd-stat { padding: 52px 20px; border-right: 1px solid var(--border); }
.gd-stat:last-child { border-right: none; }
.gd-stat-num { font-family: var(--heading); font-size: clamp(32px, 3.6vw, 48px); font-weight: 800; color: var(--accent); }
.gd-stat-label { font-size: 13px; color: var(--text-2); margin-top: 8px; }

/* ── Newsletter ── */
.gd-newsletter { text-align: center; }
.gd-newsletter-inner { max-width: 560px; margin: 0 auto; }
.gd-newsletter-form { display: flex; gap: 10px; margin-top: 30px; }
.gd-newsletter-form input {
  flex: 1; padding: 15px 20px;
  border-radius: 999px; border: 1px solid var(--border);
  background: var(--surface); color: var(--text); font-size: 14px;
}
.gd-newsletter-form input:focus { outline: none; border-color: var(--accent); }
.gd-newsletter-form button {
  background: var(--accent); color: #0a0e0c;
  font-family: var(--heading); font-weight: 800; font-size: 13px;
  padding: 15px 30px; border-radius: 999px;
}

/* ══════════════════════════════════════════════════════════════════
   FOOTER — full dark, neon accent, 3-col
   ══════════════════════════════════════════════════════════════════ */
#gd-footer { background: var(--dark); border-top: 1px solid var(--border); padding: 72px 0 28px; }
.gd-footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr; gap: 48px; padding-bottom: 48px; border-bottom: 1px solid var(--border); }
.gd-footer-brand p { font-size: 14px; color: var(--text-3); line-height: 1.7; margin: 18px 0 24px; max-width: 320px; }
.gd-footer-social { display: flex; gap: 10px; }
.gd-soc-btn {
  width: 40px; height: 40px; border-radius: 50%;
  background: rgba(255,255,255,.05); border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  color: var(--text-2); transition: all .2s;
}
.gd-soc-btn:hover { background: var(--accent); color: #0a0e0c; border-color: var(--accent); }
.gd-footer-col h4 { font-family: var(--heading); font-size: 14px; font-weight: 700; text-transform: uppercase; letter-spacing: .06em; color: var(--text); margin-bottom: 20px; }
.gd-footer-col ul { display: flex; flex-direction: column; gap: 12px; }
.gd-footer-col a { font-size: 14px; color: var(--text-3); transition: color .2s; }
.gd-footer-col a:hover { color: var(--accent); }
.gd-footer-bottom { display: flex; justify-content: space-between; align-items: center; padding-top: 24px; flex-wrap: wrap; gap: 12px; }
.gd-footer-bottom p { font-size: 13px; color: var(--text-3); }
.gd-footer-pay { display: flex; gap: 8px; flex-wrap: wrap; }
.gd-pay-badge { font-size: 11px; font-weight: 700; color: var(--text-3); border: 1px solid var(--border); padding: 5px 10px; border-radius: 5px; }

/* ── Zalo Float ── */
.gd-zalo-float { position: fixed; bottom: 26px; right: 26px; z-index: 900; }
.gd-zalo-tooltip {
  position: absolute; right: 62px; top: 50%; transform: translateY(-50%);
  background: var(--surface); color: var(--text); font-size: 12.5px; font-weight: 600;
  padding: 8px 14px; border-radius: 8px; white-space: nowrap;
  opacity: 0; pointer-events: none; transition: opacity .2s; border: 1px solid var(--border);
}
.gd-zalo-float:hover .gd-zalo-tooltip { opacity: 1; }
.gd-zalo-btn {
  width: 54px; height: 54px; border-radius: 50%;
  background: #0068FF; color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 24px;
  box-shadow: 0 8px 24px rgba(0,104,255,.4);
  animation: gd-pulse 2.4s infinite;
}
@keyframes gd-pulse {
  0%, 100% { box-shadow: 0 8px 24px rgba(0,104,255,.4); }
  50% { box-shadow: 0 8px 24px rgba(0,104,255,.4), 0 0 0 10px rgba(0,104,255,.12); }
}

/* ══════════════════════════════════════════════════════════════════
   INNER PAGE HEADER + BREADCRUMB
   ══════════════════════════════════════════════════════════════════ */
.gd-page-header { padding: 150px 0 40px; }
.gd-breadcrumb { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--text-3); margin-bottom: 18px; }
.gd-breadcrumb a { color: var(--text-3); transition: color .2s; }
.gd-breadcrumb a:hover { color: var(--accent); }
.gd-page-title { font-family: var(--heading); font-size: clamp(28px, 3.6vw, 44px); font-weight: 800; text-transform: uppercase; }
.gd-page-count { font-size: 14px; color: var(--text-3); margin-top: 10px; }

/* ══════════════════════════════════════════════════════════════════
   SHOP LAYOUT (san-pham.html) — sidebar filter + grid
   ══════════════════════════════════════════════════════════════════ */
.gd-tab-btn {
  background: none; border: none; color: var(--text-3);
  font-size: 14px; font-weight: 600; padding: 16px 20px;
  border-bottom: 2px solid transparent; transition: all .2s;
}
.gd-tab-btn.active, .gd-tab-btn:hover { color: var(--accent); border-color: var(--accent); }

.gd-shop-layout { display: grid; grid-template-columns: 260px 1fr; gap: 40px; padding: 44px 0 80px; }
.gd-filter-sidebar { align-self: start; position: sticky; top: 100px; }
.gd-filter-block { padding-bottom: 24px; margin-bottom: 24px; border-bottom: 1px solid var(--border); }
.gd-filter-title { font-family: var(--heading); font-size: 13px; font-weight: 700; text-transform: uppercase; letter-spacing: .05em; margin-bottom: 16px; }
.gd-filter-options { display: flex; flex-direction: column; gap: 12px; }
.gd-filter-opt { display: flex; align-items: center; gap: 10px; font-size: 14px; color: var(--text-2); cursor: pointer; }
.gd-filter-opt input { accent-color: var(--accent); width: 16px; height: 16px; }
.gd-filter-price-range { display: flex; align-items: center; gap: 8px; }
.gd-filter-price-range input {
  width: 0; flex: 1; background: var(--surface); border: 1px solid var(--border);
  border-radius: 6px; padding: 8px 10px; color: var(--text); font-size: 13px;
}
.gd-size-swatches { display: flex; flex-wrap: wrap; gap: 8px; }
.gd-size-swatch {
  min-width: 42px; height: 38px; padding: 0 8px;
  border: 1px solid var(--border); border-radius: 6px;
  display: flex; align-items: center; justify-content: center;
  font-size: 13px; font-weight: 600; color: var(--text-2);
  transition: all .2s; cursor: pointer;
}
.gd-size-swatch.selected, .gd-size-swatch:hover { border-color: var(--accent); color: var(--accent); background: var(--accent-light); }
.gd-color-swatches { display: flex; flex-wrap: wrap; gap: 10px; }
.gd-color-swatch {
  width: 26px; height: 26px; border-radius: 50%;
  border: 2px solid var(--border); cursor: pointer; transition: all .2s;
}
.gd-color-swatch.selected { border-color: var(--accent); box-shadow: 0 0 0 2px var(--bg), 0 0 0 3px var(--accent); }

.gd-shop-top { display: flex; justify-content: space-between; align-items: center; margin-bottom: 28px; flex-wrap: wrap; gap: 12px; }
.gd-sort-select {
  background: var(--surface); border: 1px solid var(--border); color: var(--text);
  padding: 9px 14px; border-radius: 8px; font-size: 13px;
}
.gd-prod-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }

.gd-pagination { display: flex; gap: 8px; justify-content: center; margin-top: 52px; }
.gd-page-btn {
  width: 40px; height: 40px; border-radius: 8px;
  border: 1px solid var(--border); color: var(--text-2);
  display: flex; align-items: center; justify-content: center;
  font-size: 14px; transition: all .2s;
}
.gd-page-btn.active, .gd-page-btn:hover { background: var(--accent); color: #0a0e0c; border-color: var(--accent); }

/* ══════════════════════════════════════════════════════════════════
   PRODUCT DETAIL PAGE
   ══════════════════════════════════════════════════════════════════ */
.gd-detail-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; padding: 44px 0 80px; }
.gd-gallery-main { aspect-ratio: 1/1; border-radius: 4px; overflow: hidden; background: var(--surface); margin-bottom: 14px; }
.gd-gallery-main img { width: 100%; height: 100%; object-fit: cover; }
.gd-gallery-thumbs { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.gd-gallery-thumb { aspect-ratio: 1/1; border-radius: 4px; overflow: hidden; border: 2px solid transparent; cursor: pointer; }
.gd-gallery-thumb.active { border-color: var(--accent); }
.gd-gallery-thumb img { width: 100%; height: 100%; object-fit: cover; }

.gd-detail-cat { color: var(--cyan); font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: .1em; }
.gd-detail-title { font-family: var(--heading); font-size: clamp(28px, 3.2vw, 40px); font-weight: 800; margin: 12px 0 16px; }
.gd-detail-rating { display: flex; align-items: center; gap: 10px; margin-bottom: 20px; font-size: 13px; color: var(--text-3); }
.gd-detail-price { display: flex; align-items: baseline; gap: 14px; margin-bottom: 24px; }
.gd-detail-price-new { font-family: var(--heading); font-size: 32px; font-weight: 800; color: var(--accent); }
.gd-detail-price-old { font-size: 18px; color: var(--text-3); text-decoration: line-through; }
.gd-detail-desc { font-size: 15px; color: var(--text-2); line-height: 1.8; margin-bottom: 28px; }
.gd-option-block { margin-bottom: 24px; }
.gd-option-label { font-size: 13px; font-weight: 700; text-transform: uppercase; letter-spacing: .06em; margin-bottom: 12px; display: flex; justify-content: space-between; }
.gd-qty-selector { display: flex; align-items: center; gap: 0; border: 1px solid var(--border); border-radius: 8px; width: fit-content; }
.gd-qty-selector button { width: 42px; height: 44px; font-size: 18px; color: var(--text); }
.gd-qty-selector input { width: 48px; height: 44px; text-align: center; background: none; border: none; border-left: 1px solid var(--border); border-right: 1px solid var(--border); color: var(--text); font-size: 15px; }
.gd-detail-actions { display: flex; gap: 14px; margin-bottom: 28px; }
.gd-detail-tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--border); margin-top: 12px; }
.gd-detail-tab { padding: 12px 20px; font-size: 14px; font-weight: 600; color: var(--text-3); border-bottom: 2px solid transparent; transition: all .2s; }
.gd-detail-tab.active { color: var(--accent); border-color: var(--accent); }
.gd-detail-features { display: flex; flex-direction: column; gap: 14px; padding: 20px 0; border-top: 1px solid var(--border); }
.gd-detail-feature { display: flex; align-items: center; gap: 12px; font-size: 14px; color: var(--text-2); }
.gd-detail-feature i { color: var(--accent); font-size: 17px; }

.gd-related-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }

/* ══════════════════════════════════════════════════════════════════
   CART PAGE
   ══════════════════════════════════════════════════════════════════ */
.gd-cart-wrap { padding-top: 150px; padding-bottom: 80px; }
.gd-cart-title { font-family: var(--heading); font-size: clamp(26px, 3.2vw, 36px); font-weight: 800; margin-bottom: 32px; text-transform: uppercase; }
.gd-cart-layout { display: grid; grid-template-columns: 1fr 380px; gap: 44px; align-items: start; }
.gd-cart-head {
  display: grid; grid-template-columns: 2.4fr 1fr 1fr 1fr 40px;
  padding: 0 0 16px; border-bottom: 1px solid var(--border);
  font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: .06em; color: var(--text-3);
}
.gd-cart-item {
  display: grid; grid-template-columns: 2.4fr 1fr 1fr 1fr 40px; align-items: center;
  padding: 22px 0; border-bottom: 1px solid var(--border);
}
.gd-cart-prod { display: flex; gap: 16px; align-items: center; }
.gd-cart-thumb { width: 76px; height: 76px; border-radius: 4px; overflow: hidden; background: var(--surface); flex-shrink: 0; }
.gd-cart-thumb img { width: 100%; height: 100%; object-fit: cover; }
.gd-cart-prod-name { font-family: var(--heading); font-weight: 700; font-size: 14.5px; }
.gd-cart-prod-var { font-size: 12.5px; color: var(--text-3); margin-top: 4px; }
.gd-cart-price, .gd-cart-subtotal { font-size: 14.5px; color: var(--text-2); }
.gd-cart-subtotal { font-weight: 700; color: var(--text); }
.gd-cart-qty { display: flex; align-items: center; border: 1px solid var(--border); border-radius: 8px; width: fit-content; }
.gd-cart-qty button { width: 34px; height: 36px; color: var(--text); font-size: 15px; }
.gd-cart-qty input { width: 38px; height: 36px; text-align: center; background: none; border: none; border-left: 1px solid var(--border); border-right: 1px solid var(--border); color: var(--text); }
.gd-remove-btn { width: 32px; height: 32px; border-radius: 50%; color: var(--text-3); font-size: 16px; transition: all .2s; }
.gd-remove-btn:hover { background: var(--sale-light); color: var(--sale); }

.gd-order-summary { background: var(--surface); border: 1px solid var(--border); border-radius: 4px; padding: 28px; }
.gd-summary-title { font-family: var(--heading); font-size: 18px; font-weight: 700; margin-bottom: 20px; }
.gd-summary-row { display: flex; justify-content: space-between; font-size: 14px; color: var(--text-2); padding: 10px 0; }
.gd-summary-row.total { border-top: 1px solid var(--border); margin-top: 8px; padding-top: 16px; font-family: var(--heading); font-weight: 800; font-size: 18px; color: var(--text); }
.gd-coupon-input { display: flex; gap: 8px; margin: 16px 0; }
.gd-coupon-input input { flex: 1; background: var(--bg); border: 1px solid var(--border); border-radius: 8px; padding: 11px 14px; color: var(--text); font-size: 13px; }
.gd-coupon-input button { background: rgba(255,255,255,.08); color: var(--text); padding: 0 18px; border-radius: 8px; font-size: 13px; font-weight: 600; }
.gd-btn-checkout {
  display: flex; align-items: center; justify-content: center; gap: 10px;
  width: 100%; padding: 16px; margin-top: 16px;
  background: var(--accent); color: #0a0e0c;
  font-family: var(--heading); font-weight: 800; font-size: 14px;
  border-radius: 999px; transition: all .2s;
}
.gd-btn-checkout:hover { background: var(--accent-h); }
.gd-secure-badges { display: flex; flex-direction: column; gap: 10px; margin-top: 20px; }
.gd-secure-badge { display: flex; align-items: center; gap: 8px; font-size: 12.5px; color: var(--text-3); }

/* ══════════════════════════════════════════════════════════════════
   CONTACT PAGE
   ══════════════════════════════════════════════════════════════════ */
.gd-contact-section { padding: 20px 0 80px; }
.gd-contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; }
.gd-contact-grid h2 { font-family: var(--heading); font-size: clamp(26px,3.4vw,38px); font-weight: 800; margin-bottom: 18px; text-transform: uppercase; }
.gd-contact-grid h2 em { color: var(--accent); font-style: normal; }
.gd-contact-grid > div > p { font-size: 15px; color: var(--text-2); line-height: 1.75; margin-bottom: 28px; }
.gd-contact-details { display: flex; flex-direction: column; gap: 20px; }
.gd-contact-detail { display: flex; gap: 16px; align-items: flex-start; }
.gd-contact-icon {
  width: 44px; height: 44px; border-radius: 12px; flex-shrink: 0;
  background: var(--accent-light); color: var(--accent);
  display: flex; align-items: center; justify-content: center; font-size: 18px;
}
.gd-contact-detail-text strong { display: block; font-size: 15px; margin-bottom: 4px; }
.gd-contact-detail-text p { font-size: 14px; color: var(--text-3); }
.gd-contact-map { border-radius: 4px; overflow: hidden; aspect-ratio: 16/10; border: 1px solid var(--border); }
.gd-contact-map iframe { width: 100%; height: 100%; border: 0; filter: invert(90%) hue-rotate(180deg); }

.gd-contact-form { background: var(--surface); border: 1px solid var(--border); border-radius: 4px; padding: 32px; }
.gd-contact-form h3 { font-family: var(--heading); font-size: 19px; font-weight: 700; margin-bottom: 22px; }
.gd-form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.gd-form-group { margin-bottom: 18px; }
.gd-form-group label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 8px; color: var(--text-2); }
.gd-form-group input, .gd-form-group select, .gd-form-group textarea {
  width: 100%; background: var(--bg); border: 1px solid var(--border); border-radius: 8px;
  padding: 12px 14px; color: var(--text); font-size: 14px;
}
.gd-form-group input:focus, .gd-form-group select:focus, .gd-form-group textarea:focus { outline: none; border-color: var(--accent); }
.gd-form-group textarea { resize: vertical; }
.gd-submit-btn {
  display: flex; align-items: center; justify-content: center; gap: 10px;
  width: 100%; padding: 15px; background: var(--accent); color: #0a0e0c;
  font-family: var(--heading); font-weight: 800; font-size: 14px; border-radius: 999px;
}

/* ══════════════════════════════════════════════════════════════════
   COLLECTIONS PAGE (bo-suu-tap.html)
   ══════════════════════════════════════════════════════════════════ */
.gd-collection-row { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.gd-collection-row.reverse .gd-collection-visual { order: 2; }
.gd-collection-visual { position: relative; border-radius: 4px; overflow: hidden; aspect-ratio: 4/3; }
.gd-collection-visual img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
.gd-collection-visual:hover img { transform: scale(1.05); }
.gd-collection-tag {
  position: absolute; top: 20px; left: 20px;
  background: var(--accent); color: #0a0e0c;
  font-family: var(--heading); font-weight: 800; font-size: 12px;
  letter-spacing: .06em; text-transform: uppercase;
  padding: 8px 16px; border-radius: 999px;
}
.gd-collection-info h3 {
  font-family: var(--heading); font-size: clamp(26px, 3vw, 36px); font-weight: 800;
  line-height: 1.08; margin-bottom: 16px; text-transform: uppercase;
}
.gd-collection-info h3 em { color: var(--accent); font-style: normal; }
.gd-collection-info > p { font-size: 15px; color: var(--text-2); line-height: 1.75; margin-bottom: 22px; max-width: 460px; }
.gd-collection-features { display: flex; flex-direction: column; gap: 11px; margin-bottom: 28px; }
.gd-collection-features li { display: flex; align-items: center; gap: 10px; font-size: 14px; color: var(--text-2); }
.gd-collection-features li i { color: var(--accent); font-size: 16px; flex-shrink: 0; }

/* ══════════════════════════════════════════════════════════════════
   RESPONSIVE
   ══════════════════════════════════════════════════════════════════ */
@media (max-width: 992px) {
  .gd-nav-links, .gd-nav-cta { display: none; }
  #gd-burger { display: flex; }
  .gd-collection-row { grid-template-columns: 1fr; gap: 28px; }
  .gd-collection-row.reverse .gd-collection-visual { order: 0; }
  .gd-cat-grid { grid-template-columns: repeat(2, 1fr); }
  .gd-bento { grid-template-columns: repeat(2, 1fr); }
  .gd-bento .gd-prod-card:first-child { grid-column: span 2; grid-row: span 1; }
  .gd-feat-row { grid-template-columns: repeat(2, 1fr); }
  .gd-promo-inner { grid-template-columns: 1fr; gap: 36px; }
  .gd-stats-grid { grid-template-columns: repeat(2, 1fr); }
  .gd-stat { border-bottom: 1px solid var(--border); }
  .gd-shop-layout { grid-template-columns: 1fr; }
  .gd-filter-sidebar { position: static; }
  .gd-prod-grid { grid-template-columns: repeat(2, 1fr); }
  .gd-detail-layout { grid-template-columns: 1fr; gap: 32px; }
  .gd-related-grid { grid-template-columns: repeat(2, 1fr); }
  .gd-cart-layout { grid-template-columns: 1fr; }
  .gd-cart-head { display: none; }
  .gd-cart-item { grid-template-columns: 1fr; gap: 12px; position: relative; }
  .gd-contact-grid { grid-template-columns: 1fr; gap: 40px; }
}
@media (max-width: 576px) {
  .gd-cat-grid, .gd-prod-grid, .gd-related-grid { grid-template-columns: 1fr 1fr; }
  .gd-feat-row { grid-template-columns: 1fr; }
  .gd-form-row { grid-template-columns: 1fr; }
  .gd-hero { padding-top: 130px; }
}

/* ══════════════════════════════════════════════════════════════════
   ARTICLE — Chính sách bảo mật / Điều khoản sử dụng
   ══════════════════════════════════════════════════════════════════ */
.gd-article { max-width: 820px; }
.gd-article-updated {
  font-size: 13px;
  color: var(--text-3);
  margin-bottom: 40px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border);
}
.gd-article h2 {
  font-family: var(--heading);
  font-size: clamp(20px, 2.6vw, 26px);
  font-weight: 700;
  color: var(--text);
  margin: 44px 0 16px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.gd-article h2:first-of-type { margin-top: 0; }
.gd-article-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: var(--accent-light);
  color: var(--accent);
  font-size: 14px;
  font-weight: 800;
  flex-shrink: 0;
}
.gd-article p {
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-2);
  margin-bottom: 14px;
}
.gd-article ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin: 14px 0 20px;
}
.gd-article ul li {
  font-size: 15px;
  line-height: 1.7;
  color: var(--text-2);
  padding-left: 22px;
  position: relative;
}
.gd-article ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
}
.gd-article strong { color: var(--text); font-weight: 700; }
.gd-article a { color: var(--accent); text-decoration: underline; text-underline-offset: 2px; }
.gd-article-contact {
  margin-top: 12px;
  padding: 24px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
}
.gd-article-contact p { margin-bottom: 8px; }
.gd-article-contact p:last-child { margin-bottom: 0; }

/* ══════════════════════════════════════════════════════════════════
   SEARCH — Nav button/panel + product filter (sidebar)
   ══════════════════════════════════════════════════════════════════ */
.gd-nav-search-btn {
  position: relative;
  width: 42px; height: 42px;
  border-radius: 50%;
  background: rgba(255,255,255,.06);
  border: none;
  display: flex; align-items: center; justify-content: center;
  color: var(--text);
  font-size: 17px;
  cursor: pointer;
  transition: background .2s, color .2s;
}
.gd-nav-search-btn:hover { background: rgba(255,255,255,.12); color: var(--accent); }
.gd-search-panel {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 999;
  background: var(--dark2);
  border-bottom: 1px solid var(--border);
  padding: 18px 0;
  transform: translateY(-100%);
  opacity: 0;
  transition: transform .25s ease, opacity .25s ease;
  pointer-events: none;
}
.gd-search-panel:not([hidden]) { transform: translateY(0); opacity: 1; pointer-events: auto; }
.gd-search-panel-form { display: flex; align-items: center; gap: 12px; }
.gd-search-panel-form > i { color: var(--text-3); font-size: 17px; }
.gd-search-panel-input {
  flex: 1;
  border: none;
  outline: none;
  background: transparent;
  font-family: var(--sans);
  font-size: 16px;
  color: var(--text);
}
.gd-search-panel-input::placeholder { color: var(--text-3); }
.gd-search-panel-submit {
  background: var(--accent);
  color: #0a0e0c;
  border: none;
  padding: 8px 18px;
  border-radius: 999px;
  cursor: pointer;
  font-family: var(--sans);
  font-weight: 700;
  font-size: 14px;
  transition: background .2s;
}
.gd-search-panel-submit:hover { background: var(--accent-h); }
.gd-search-panel-close {
  background: none;
  border: none;
  font-size: 22px;
  color: var(--text-3);
  cursor: pointer;
  line-height: 1;
  padding: 0 4px;
  transition: color .2s;
}
.gd-search-panel-close:hover { color: var(--text); }

.gd-search-box {
  display: flex;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 14px;
  background: var(--dark2);
  transition: border-color .2s;
}
.gd-search-box:focus-within { border-color: var(--accent); }
.gd-search-box i { color: var(--text-3); font-size: 15px; }
.gd-search-input {
  flex: 1;
  border: none;
  outline: none;
  background: transparent;
  font-family: var(--sans);
  font-size: 14px;
  color: var(--text);
}
.gd-search-input::placeholder { color: var(--text-3); }
.gd-search-empty { font-family: var(--sans); font-size: 14px; }