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

:root {
  --blue:       #5B6CF5;
  --blue-light: #e8eafd;
  --blue-mid:   #8f9af8;
  --near-black: #1A1B1E;
  --white:      #FFFFFF;
  --off-white:  #F5F3EE;
  --gray-border:#E2E0DB;
  --gray-text:  #6B6860;
  --gray-subtle:#9B9890;
  --green:      #2E8B57;
  --green-light:#EAF5EE;
  --font: 'Montserrat', sans-serif;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --shadow-card: 0 1px 3px rgba(26,27,30,0.06), 0 4px 16px rgba(26,27,30,0.04);
  --shadow-hover: 0 4px 24px rgba(91,108,245,0.14), 0 1px 4px rgba(26,27,30,0.08);
  --transition: 0.22s cubic-bezier(0.4,0,0.2,1);
}

html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  background: var(--white);
  color: var(--near-black);
  font-size: 15px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
ul { list-style: none; }

.container { max-width: 1160px; margin: 0 auto; padding: 0 32px; }

/* ── BUTTONS ────────────────────────────────────────────────── */
.btn-primary {
  display: inline-flex; align-items: center; gap: 9px;
  background: var(--blue); color: var(--white);
  font-family: var(--font); font-size: 13px; font-weight: 700;
  letter-spacing: 0.08em; text-transform: uppercase;
  padding: 16px 32px; border-radius: var(--radius-sm);
  border: none; cursor: pointer; width: 100%;
  justify-content: center;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
}
.btn-primary:hover { background: #4a5ae0; transform: translateY(-1px); box-shadow: 0 6px 20px rgba(91,108,245,0.28); }
.btn-primary:active { transform: translateY(0); }

.btn-secondary {
  display: inline-flex; align-items: center; gap: 9px;
  background: var(--off-white); color: var(--near-black);
  font-family: var(--font); font-size: 13px; font-weight: 600;
  letter-spacing: 0.08em; text-transform: uppercase;
  padding: 15px 32px; border-radius: var(--radius-sm);
  border: 1px solid var(--gray-border); cursor: pointer; width: 100%;
  justify-content: center;
  transition: background var(--transition), border-color var(--transition), transform var(--transition);
}
.btn-secondary:hover { background: var(--white); border-color: var(--near-black); transform: translateY(-1px); }

.btn-outline-sm {
  display: inline-flex; align-items: center; gap: 6px;
  background: transparent; color: var(--blue);
  font-family: var(--font); font-size: 12px; font-weight: 700;
  letter-spacing: 0.08em; text-transform: uppercase;
  padding: 9px 18px; border-radius: var(--radius-sm);
  border: 1.5px solid var(--blue); cursor: pointer;
  transition: background var(--transition), color var(--transition);
}
.btn-outline-sm:hover { background: var(--blue); color: var(--white); }

/* ── NAV ─────────────────────────────────────────────────────── */
.announcement {
  background: var(--blue); color: var(--white);
  text-align: center; padding: 10px 32px;
  font-size: 12px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase;
}
.announcement a { color: var(--white); text-decoration: underline; text-underline-offset: 3px; }

.nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,0.96);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--gray-border);
}
.nav-inner {
  max-width: 1160px; margin: 0 auto; padding: 0 32px;
  height: 68px; display: flex; align-items: center;
  justify-content: space-between; gap: 32px;
}
.nav-logo { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.nav-wordmark { font-size: 18px; font-weight: 700; letter-spacing: -0.01em; color: var(--near-black); }
.nav-wordmark span { color: var(--blue); font-weight: 300; }
.nav-links { display: flex; align-items: center; gap: 32px; }
.nav-links a { font-size: 13px; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; color: var(--gray-text); transition: color var(--transition); }
.nav-links a:hover, .nav-links a.active { color: var(--blue); }
.nav-actions { display: flex; align-items: center; gap: 12px; }
.nav-account { font-family: var(--font); font-size: 12px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; padding: 10px 20px; border-radius: var(--radius-sm); border: 1.5px solid var(--blue); background: transparent; color: var(--blue); cursor: pointer; transition: background var(--transition), color var(--transition); }
.nav-account:hover { background: var(--blue); color: var(--white); }
.nav-cart {
  position: relative; display: flex; align-items: center; justify-content: center;
  width: 40px; height: 40px; border: 1px solid var(--gray-border);
  border-radius: var(--radius-sm); cursor: pointer;
  transition: border-color var(--transition), background var(--transition); color: var(--near-black);
}
.nav-cart:hover { border-color: var(--blue); background: var(--blue-light); color: var(--blue); }
.cart-badge {
  position: absolute; top: -6px; right: -6px;
  width: 18px; height: 18px; background: var(--blue);
  color: var(--white); border-radius: 50%; font-size: 10px; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  transition: transform 0.2s;
}

/* ── BREADCRUMB ──────────────────────────────────────────────── */
.breadcrumb {
  padding: 18px 0;
  border-bottom: 1px solid var(--gray-border);
  background: var(--off-white);
}
.breadcrumb-inner {
  display: flex; align-items: center; gap: 8px;
  font-size: 12px; font-weight: 400; color: var(--gray-subtle);
}
.breadcrumb-inner a { color: var(--gray-subtle); transition: color var(--transition); }
.breadcrumb-inner a:hover { color: var(--blue); }
.breadcrumb-sep { font-size: 10px; color: var(--gray-border); }
.breadcrumb-current { color: var(--near-black); font-weight: 600; }

/* ── PRODUCT LAYOUT ──────────────────────────────────────────── */
.product-layout {
  padding: 48px 0 80px;
}
.product-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
  align-items: start;
}

/* ── LEFT: GALLERY ───────────────────────────────────────────── */
.gallery { position: sticky; top: 88px; }

.gallery-main {
  background: var(--off-white);
  border: 1px solid var(--gray-border);
  border-radius: var(--radius-lg);
  height: 460px;
  display: flex; align-items: center; justify-content: center;
  position: relative; overflow: hidden;
  margin-bottom: 12px;
  transition: background var(--transition);
}

.gallery-main-hex {
  position: absolute;
  opacity: 0.07;
}

.gallery-vial-wrap {
  position: relative; z-index: 2;
  display: flex; align-items: center; justify-content: center;
  animation: floatSlow 6s ease-in-out infinite;
}

@keyframes floatSlow {
  0%,100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

.gallery-purity-badge {
  position: absolute; bottom: 22px; right: 22px;
  background: var(--white); border: 1px solid var(--gray-border);
  border-radius: var(--radius-md); padding: 10px 14px;
  display: flex; align-items: center; gap: 9px;
  box-shadow: var(--shadow-card);
}
.purity-dot {
  width: 10px; height: 10px; background: var(--green);
  border-radius: 50%; flex-shrink: 0;
  box-shadow: 0 0 0 3px var(--green-light);
}
.purity-text { font-size: 12px; font-weight: 700; color: var(--near-black); }
.purity-sub { font-size: 10px; color: var(--gray-subtle); font-weight: 400; }

.gallery-thumbs {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px;
}
.thumb {
  background: var(--off-white); border: 1.5px solid var(--gray-border);
  border-radius: var(--radius-md); height: 80px;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer; transition: border-color var(--transition), background var(--transition);
  overflow: hidden;
}
.thumb:hover { border-color: var(--blue); background: var(--blue-light); }
.thumb.active { border-color: var(--blue); background: var(--blue-light); }
.thumb-label { font-size: 10px; font-weight: 700; color: var(--gray-text); letter-spacing: 0.06em; text-transform: uppercase; text-align: center; padding: 0 6px; }

/* ── RIGHT: PRODUCT INFO ─────────────────────────────────────── */
.product-info {}

.product-badges {
  display: flex; align-items: center; gap: 8px;
  flex-wrap: wrap; margin-bottom: 16px;
}
.badge-tag {
  font-size: 10px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase;
  padding: 4px 10px; border-radius: 2px;
}
.badge-seller { background: var(--near-black); color: var(--white); }
.badge-stock { background: var(--green-light); color: var(--green); }
.badge-cat { background: var(--blue-light); color: var(--blue); }

.product-name {
  font-size: 36px; font-weight: 700; letter-spacing: -0.03em;
  color: var(--near-black); line-height: 1.1; margin-bottom: 6px;
}
.product-fullname {
  font-size: 13px; font-weight: 300; color: var(--gray-text);
  margin-bottom: 20px;
}

.product-price-row {
  display: flex; align-items: baseline; gap: 12px;
  margin-bottom: 24px; padding-bottom: 24px;
  border-bottom: 1px solid var(--gray-border);
}
.price-main { font-size: 32px; font-weight: 700; color: var(--near-black); letter-spacing: -0.02em; }
.price-per { font-size: 13px; color: var(--gray-subtle); font-weight: 300; }

.product-quick-specs {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px;
  margin-bottom: 28px;
}
.spec-box {
  background: var(--off-white); border: 1px solid var(--gray-border);
  border-radius: var(--radius-md); padding: 12px 14px; text-align: center;
}
.spec-val { font-size: 16px; font-weight: 700; color: var(--near-black); letter-spacing: -0.01em; }
.spec-key { font-size: 10px; font-weight: 600; color: var(--gray-subtle); text-transform: uppercase; letter-spacing: 0.08em; margin-top: 2px; }

/* ── VARIANT SELECTOR ────────────────────────────────────────── */
.selector-label {
  font-size: 12px; font-weight: 700; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--near-black); margin-bottom: 10px;
  display: flex; justify-content: space-between; align-items: center;
}
.selector-label span { font-weight: 400; color: var(--blue); font-size: 12px; letter-spacing: 0; text-transform: none; }

.variants-grid { display: flex; gap: 8px; margin-bottom: 22px; flex-wrap: wrap; }
.variant-btn {
  font-family: var(--font); font-size: 13px; font-weight: 600;
  padding: 10px 20px; border-radius: var(--radius-sm);
  border: 1.5px solid var(--gray-border); background: var(--white);
  cursor: pointer; color: var(--near-black); transition: all var(--transition);
  position: relative;
}
.variant-btn:hover { border-color: var(--blue); color: var(--blue); background: var(--blue-light); }
.variant-btn.active { border-color: var(--blue); color: var(--blue); background: var(--blue-light); }
.variant-btn .variant-price { display: block; font-size: 11px; font-weight: 400; color: var(--gray-subtle); margin-top: 2px; }
.variant-btn.active .variant-price { color: var(--blue-mid); }

/* ── QTY & ADD ───────────────────────────────────────────────── */
.qty-row { display: flex; gap: 12px; align-items: center; margin-bottom: 14px; }
.qty-control {
  display: flex; align-items: center; border: 1px solid var(--gray-border);
  border-radius: var(--radius-sm); overflow: hidden; flex-shrink: 0;
}
.qty-btn {
  width: 40px; height: 50px; background: var(--off-white); border: none;
  font-size: 18px; font-weight: 300; color: var(--near-black);
  cursor: pointer; display: flex; align-items: center; justify-content: center;
  transition: background var(--transition), color var(--transition);
}
.qty-btn:hover { background: var(--blue-light); color: var(--blue); }
.qty-input {
  width: 52px; height: 50px; border: none; border-left: 1px solid var(--gray-border); border-right: 1px solid var(--gray-border);
  text-align: center; font-family: var(--font); font-size: 15px; font-weight: 700;
  color: var(--near-black); background: var(--white); outline: none;
}
.qty-input::-webkit-inner-spin-button, .qty-input::-webkit-outer-spin-button { -webkit-appearance: none; }

.add-cart-wrap { flex: 1; }

.wishlist-btn {
  display: flex; align-items: center; justify-content: center;
  width: 50px; height: 50px; border: 1px solid var(--gray-border);
  border-radius: var(--radius-sm); background: var(--white); cursor: pointer;
  color: var(--gray-text); transition: all var(--transition); flex-shrink: 0;
}
.wishlist-btn:hover { border-color: #E8534A; color: #E8534A; background: #FEF0EF; }
.wishlist-btn.active { border-color: #E8534A; color: #E8534A; background: #FEF0EF; }

.buy-now-wrap { margin-bottom: 20px; }

/* ── TRUST ROW ───────────────────────────────────────────────── */
.trust-row {
  display: flex; gap: 0;
  border: 1px solid var(--gray-border); border-radius: var(--radius-md);
  overflow: hidden; margin-bottom: 24px;
}
.trust-cell {
  flex: 1; display: flex; align-items: center; gap: 10px;
  padding: 14px 14px; border-right: 1px solid var(--gray-border);
}
.trust-cell:last-child { border-right: none; }
.trust-cell-icon {
  width: 32px; height: 32px; background: var(--blue-light);
  border-radius: var(--radius-sm); display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.trust-cell-title { font-size: 12px; font-weight: 700; color: var(--near-black); line-height: 1.3; }
.trust-cell-sub { font-size: 10px; color: var(--gray-subtle); font-weight: 300; }

/* ── DISCLAIMER ──────────────────────────────────────────────── */
.research-disclaimer {
  background: var(--off-white); border: 1px solid var(--gray-border);
  border-left: 3px solid var(--blue); border-radius: var(--radius-sm);
  padding: 12px 16px;
  font-size: 11px; font-weight: 400; color: var(--gray-text); line-height: 1.6;
}
.research-disclaimer strong { font-weight: 700; color: var(--near-black); }

/* ── TABS ────────────────────────────────────────────────────── */
.tabs-section {
  padding: 0 0 80px;
  border-top: 1px solid var(--gray-border);
}
.tabs-nav {
  display: flex; border-bottom: 1px solid var(--gray-border);
  margin-bottom: 48px; gap: 0;
}
.tab-btn {
  font-family: var(--font); font-size: 13px; font-weight: 600;
  letter-spacing: 0.06em; text-transform: uppercase;
  padding: 18px 28px; border: none; background: none;
  color: var(--gray-text); cursor: pointer;
  border-bottom: 2px solid transparent; margin-bottom: -1px;
  transition: color var(--transition), border-color var(--transition);
}
.tab-btn:hover { color: var(--near-black); }
.tab-btn.active { color: var(--blue); border-bottom-color: var(--blue); }

.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* ── OVERVIEW TAB ────────────────────────────────────────────── */
.overview-grid {
  display: grid; grid-template-columns: 2fr 1fr; gap: 64px; align-items: start;
}
.overview-body h3 {
  font-size: 18px; font-weight: 700; color: var(--near-black);
  letter-spacing: -0.02em; margin-bottom: 14px;
}
.overview-body p {
  font-size: 14px; font-weight: 300; color: var(--gray-text);
  line-height: 1.8; margin-bottom: 20px;
}
.overview-body ul { margin-bottom: 20px; }
.overview-body li {
  font-size: 14px; font-weight: 300; color: var(--gray-text);
  line-height: 1.8; padding: 6px 0 6px 20px; position: relative;
  border-bottom: 1px solid var(--gray-border);
}
.overview-body li:last-child { border-bottom: none; }
.overview-body li::before {
  content: ''; position: absolute; left: 0; top: 16px;
  width: 6px; height: 6px; background: var(--blue); border-radius: 50%;
}
.overview-body li strong { font-weight: 700; color: var(--near-black); }

.specs-sidebar {}
.spec-table { width: 100%; border-collapse: collapse; }
.spec-table tr { border-bottom: 1px solid var(--gray-border); }
.spec-table tr:last-child { border-bottom: none; }
.spec-table td { padding: 11px 0; font-size: 13px; vertical-align: top; }
.spec-table .spec-key-col { color: var(--gray-subtle); font-weight: 600; letter-spacing: 0.03em; width: 44%; }
.spec-table .spec-val-col { color: var(--near-black); font-weight: 600; text-align: right; }

.section-tag {
  display: inline-block; font-size: 10px; font-weight: 700;
  letter-spacing: 0.12em; text-transform: uppercase; color: var(--blue);
  background: var(--blue-light); padding: 4px 12px; border-radius: 2px; margin-bottom: 14px;
}

/* ── COA TAB ─────────────────────────────────────────────────── */
.coa-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }

.coa-card {
  background: var(--white); border: 1px solid var(--gray-border);
  border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-card);
}
.coa-card-header {
  background: var(--near-black); padding: 20px 24px;
  display: flex; align-items: center; gap: 14px;
}
.coa-card-header-icon {
  width: 40px; height: 40px; background: rgba(91,108,245,0.2);
  border-radius: var(--radius-sm); display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.coa-card-header-title { font-size: 14px; font-weight: 700; color: var(--white); }
.coa-card-header-sub { font-size: 11px; color: rgba(255,255,255,0.45); font-weight: 300; }
.coa-card-body { padding: 24px; }

.coa-result-row {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 0; border-bottom: 1px solid var(--gray-border); gap: 12px;
}
.coa-result-row:last-child { border-bottom: none; }
.coa-result-label { font-size: 13px; color: var(--gray-text); font-weight: 400; }
.coa-result-val { font-size: 13px; font-weight: 700; color: var(--near-black); text-align: right; }
.pass-chip {
  display: inline-flex; align-items: center; gap: 5px;
  background: var(--green-light); color: var(--green);
  font-size: 11px; font-weight: 700; padding: 3px 10px; border-radius: 2px;
}
.pass-chip::before { content: '✓'; }
.fail-chip {
  display: inline-flex; align-items: center; gap: 5px;
  background: #FEF0EF; color: #E8534A;
  font-size: 11px; font-weight: 700; padding: 3px 10px; border-radius: 2px;
}

.coa-download-row {
  display: flex; gap: 10px; margin-top: 20px; padding-top: 20px;
  border-top: 1px solid var(--gray-border);
}

.coa-summary-card {
  background: var(--off-white); border: 1px solid var(--gray-border);
  border-radius: var(--radius-lg); padding: 28px;
}
.coa-summary-title { font-size: 15px; font-weight: 700; color: var(--near-black); margin-bottom: 20px; }

.purity-bar-wrap { margin-bottom: 22px; }
.purity-bar-label {
  display: flex; justify-content: space-between;
  font-size: 12px; font-weight: 600; margin-bottom: 8px; color: var(--gray-text);
}
.purity-bar-label span:last-child { color: var(--green); font-weight: 700; }
.purity-bar-track {
  height: 8px; background: var(--gray-border); border-radius: 99px; overflow: hidden;
}
.purity-bar-fill {
  height: 100%; border-radius: 99px; background: var(--green);
  transition: width 1.2s cubic-bezier(0.4,0,0.2,1);
}

.cert-meta-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 22px; }
.cert-meta-item { background: var(--white); border: 1px solid var(--gray-border); border-radius: var(--radius-md); padding: 12px 14px; }
.cert-meta-val { font-size: 14px; font-weight: 700; color: var(--near-black); }
.cert-meta-key { font-size: 10px; color: var(--gray-subtle); font-weight: 600; text-transform: uppercase; letter-spacing: 0.08em; margin-top: 2px; }

.qr-section {
  display: flex; align-items: center; gap: 16px; margin-top: 22px;
  padding: 16px; background: var(--white); border: 1px solid var(--gray-border); border-radius: var(--radius-md);
}
.qr-mock {
  width: 64px; height: 64px; background: var(--near-black);
  border-radius: 4px; flex-shrink: 0; display: grid; grid-template-columns: repeat(8,1fr); grid-template-rows: repeat(8,1fr); gap: 1px; padding: 6px; overflow: hidden;
}
.qr-cell { background: white; border-radius: 1px; }
.qr-cell.b { background: transparent; }
.qr-text { font-size: 12px; font-weight: 600; color: var(--near-black); }
.qr-sub { font-size: 11px; color: var(--gray-subtle); font-weight: 300; line-height: 1.5; }

/* ── RESEARCH TAB ────────────────────────────────────────────── */
.research-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 20px; margin-bottom: 40px; }
.research-card {
  background: var(--off-white); border: 1px solid var(--gray-border);
  border-radius: var(--radius-lg); padding: 24px;
  transition: box-shadow var(--transition), transform var(--transition);
}
.research-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-2px); }
.research-card-eyebrow {
  font-size: 10px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--blue); margin-bottom: 8px;
}
.research-card-title { font-size: 15px; font-weight: 700; color: var(--near-black); margin-bottom: 10px; line-height: 1.35; letter-spacing: -0.01em; }
.research-card-body { font-size: 13px; font-weight: 300; color: var(--gray-text); line-height: 1.7; }
.research-card-meta {
  display: flex; align-items: center; gap: 10px; margin-top: 16px;
  padding-top: 14px; border-top: 1px solid var(--gray-border);
  font-size: 11px; color: var(--gray-subtle); font-weight: 400;
}
.research-card-meta strong { font-weight: 700; color: var(--near-black); }

.research-disclaimer-box {
  background: var(--blue-light); border: 1px solid rgba(91,108,245,0.2);
  border-radius: var(--radius-md); padding: 20px 24px;
  font-size: 13px; font-weight: 300; color: var(--gray-text); line-height: 1.7;
}
.research-disclaimer-box strong { font-weight: 700; color: var(--blue); }

/* ── SHIPPING TAB ────────────────────────────────────────────── */
.shipping-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 20px; margin-bottom: 36px; }
.shipping-card {
  background: var(--white); border: 1px solid var(--gray-border);
  border-radius: var(--radius-lg); padding: 24px;
}
.shipping-icon-wrap {
  width: 44px; height: 44px; background: var(--blue-light);
  border-radius: var(--radius-md); display: flex; align-items: center; justify-content: center; margin-bottom: 14px;
}
.shipping-title { font-size: 14px; font-weight: 700; color: var(--near-black); margin-bottom: 6px; }
.shipping-desc { font-size: 13px; font-weight: 300; color: var(--gray-text); line-height: 1.65; }
.shipping-price { font-size: 18px; font-weight: 700; color: var(--near-black); margin-top: 10px; }
.shipping-price span { font-size: 12px; color: var(--gray-subtle); font-weight: 300; }

.policy-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.policy-item {
  background: var(--off-white); border: 1px solid var(--gray-border);
  border-radius: var(--radius-md); padding: 20px 22px;
}
.policy-title { font-size: 14px; font-weight: 700; color: var(--near-black); margin-bottom: 8px; }
.policy-body { font-size: 13px; font-weight: 300; color: var(--gray-text); line-height: 1.7; }

/* ── RELATED PRODUCTS ────────────────────────────────────────── */
.related-section { padding: 64px 0 80px; background: var(--off-white); }

.section-header-row {
  display: flex; align-items: flex-end; justify-content: space-between;
  margin-bottom: 36px;
}
.label-tag {
  display: inline-block; font-size: 11px; font-weight: 600;
  letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--blue); background: var(--blue-light); padding: 4px 12px; border-radius: 2px; margin-bottom: 10px;
}
.section-heading { font-size: 26px; font-weight: 700; letter-spacing: -0.02em; color: var(--near-black); }
.divider { width: 32px; height: 2px; background: var(--blue); margin: 12px 0 0; }

.related-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 16px; }
.related-card {
  background: var(--white); border: 1px solid var(--gray-border);
  border-radius: var(--radius-lg); overflow: hidden;
  transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition); cursor: pointer;
}
.related-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-3px); border-color: rgba(91,108,245,0.25); }
.related-img {
  background: var(--off-white); height: 160px;
  display: flex; align-items: center; justify-content: center; position: relative; overflow: hidden;
}
.related-img-hex { position: absolute; opacity: 0.08; }
.related-body { padding: 16px; }
.related-cat { font-size: 10px; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; color: var(--blue); margin-bottom: 4px; }
.related-name { font-size: 14px; font-weight: 700; color: var(--near-black); margin-bottom: 4px; letter-spacing: -0.01em; }
.related-purity { font-size: 10px; font-weight: 600; color: var(--green); background: var(--green-light); padding: 2px 8px; border-radius: 2px; display: inline-block; margin-bottom: 12px; }
.related-footer { display: flex; align-items: center; justify-content: space-between; }
.related-price { font-size: 16px; font-weight: 700; color: var(--near-black); }
.related-add {
  width: 32px; height: 32px; background: var(--blue); color: var(--white);
  border: none; border-radius: var(--radius-sm); cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  font-size: 18px; font-weight: 300; transition: background var(--transition), transform var(--transition);
}
.related-add:hover { background: #4a5ae0; transform: scale(1.08); }

/* ── FOOTER ──────────────────────────────────────────────────── */
.footer {
  background: var(--white); border-top: 1px solid var(--gray-border); padding: 56px 0 28px;
}
.footer-top { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 48px; margin-bottom: 40px; }
.footer-brand-desc { font-size: 13px; font-weight: 300; color: var(--gray-text); line-height: 1.7; margin: 14px 0 20px; max-width: 280px; }
.footer-col-title { font-size: 11px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--near-black); margin-bottom: 16px; }
.footer-links { display: flex; flex-direction: column; gap: 9px; }
.footer-links a { font-size: 13px; font-weight: 300; color: var(--gray-text); transition: color var(--transition); }
.footer-links a:hover { color: var(--blue); }
.footer-bottom { padding-top: 24px; border-top: 1px solid var(--gray-border); display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.footer-copy { font-size: 12px; color: var(--gray-subtle); font-weight: 300; }
.footer-legal { display: flex; gap: 20px; }
.footer-legal a { font-size: 12px; color: var(--gray-subtle); font-weight: 300; transition: color var(--transition); }
.footer-legal a:hover { color: var(--blue); }
.footer-disclaimer { width: 100%; font-size: 11px; color: var(--gray-subtle); font-weight: 300; line-height: 1.6; padding-top: 16px; border-top: 1px solid var(--gray-border); margin-top: 16px; }

/* ── PAGE LOAD ANIMATION ─────────────────────────────────────── */
@keyframes fadeUp { from { opacity:0; transform: translateY(16px); } to { opacity:1; transform: translateY(0); } }
.fade-up { opacity: 0; animation: fadeUp 0.5s ease forwards; }
.d1 { animation-delay: 0.05s; } .d2 { animation-delay: 0.12s; }
.d3 { animation-delay: 0.19s; } .d4 { animation-delay: 0.26s; }

/* ── STICKY ADD TO CART ───────────────────────────────────────── */
.sticky-atc {
  position: fixed; bottom: 0; left: 0; right: 0; z-index: 200;
  background: rgba(255,255,255,0.97); backdrop-filter: blur(12px);
  border-top: 1px solid var(--gray-border); padding: 14px 32px;
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
  transform: translateY(100%); transition: transform 0.3s cubic-bezier(0.4,0,0.2,1);
}
.sticky-atc.visible { transform: translateY(0); }
.sticky-atc-info { display: flex; align-items: center; gap: 16px; }
.sticky-atc-name { font-size: 15px; font-weight: 700; color: var(--near-black); }
.sticky-atc-price { font-size: 15px; font-weight: 700; color: var(--blue); }
.sticky-atc-purity { font-size: 11px; font-weight: 600; color: var(--green); background: var(--green-light); padding: 3px 10px; border-radius: 2px; }
.sticky-atc-btn {
  font-family: var(--font); font-size: 13px; font-weight: 700;
  letter-spacing: 0.08em; text-transform: uppercase;
  padding: 13px 32px; background: var(--blue); color: var(--white);
  border: none; border-radius: var(--radius-sm); cursor: pointer;
  flex-shrink: 0; transition: background var(--transition);
}
.sticky-atc-btn:hover { background: #4a5ae0; }