/* ============================================
   EMIRG — site.css
   Extends brand system for full e-commerce site
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@300;400;500;700&family=Instrument+Serif:ital@0;1&family=Space+Grotesk:wght@300;400;500;600;700&display=swap');

:root {
  --ink: #0a0b0a;
  --ink-2: #141614;
  --ink-3: #1e211e;
  --bone: #efece3;
  --bone-2: #e2ded1;
  --paper: #f6f3ea;
  --acid: #d4ff3a;
  --acid-deep: #9fc700;
  --plasma: #6bff9f;
  --blood: #ff3b2f;
  --gold: #c9a961;
  --gray-1: #8a8f88;
  --gray-2: #5a5f58;
  --gray-3: #33362f;
  --line: rgba(239,236,227,0.14);
  --line-bone: rgba(10,11,10,0.12);

  --mono: 'JetBrains Mono', ui-monospace, monospace;
  --serif: 'Instrument Serif', 'Times New Roman', serif;
  --sans: 'Space Grotesk', -apple-system, sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--ink);
  color: var(--bone);
  font-family: var(--sans);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
img, svg { max-width: 100%; display: block; }

/* ————— GATE OVERLAY ————— */
.gate {
  position: fixed; inset: 0; z-index: 200;
  background: var(--ink);
  display: flex; align-items: center; justify-content: center;
  padding: 32px;
}
.gate.hidden { display: none; }
.gate-card {
  max-width: 560px; width: 100%;
  border: 1px solid var(--line);
  padding: 56px 48px;
  position: relative;
}
.gate-card::before, .gate-card::after {
  content:''; position:absolute; width:14px; height:14px;
  border: 1px solid var(--acid); opacity:0.7;
}
.gate-card::before { top:-1px; left:-1px; border-right:0; border-bottom:0; }
.gate-card::after  { bottom:-1px; right:-1px; border-left:0; border-top:0; }
.gate-num { font-family:var(--mono); font-size:10px; letter-spacing:0.22em; text-transform:uppercase; opacity:0.55; margin-bottom:24px; }
.gate-head { font-family:var(--serif); font-size:44px; line-height:1.02; letter-spacing:-0.01em; margin:0 0 18px; font-weight:400; }
.gate-head em { font-style:italic; color:var(--acid); }
.gate-body { font-size:14px; line-height:1.6; opacity:0.75; margin-bottom:32px; max-width:44ch; }
.gate-check {
  display:flex; gap:12px; align-items:flex-start; margin-bottom:16px;
  font-family:var(--mono); font-size:11px; letter-spacing:0.08em; text-transform:uppercase; line-height:1.5;
  cursor:pointer; user-select:none;
}
.gate-check input { display:none; }
.gate-box {
  width:16px; height:16px; border:1px solid var(--bone);
  flex-shrink:0; margin-top:1px; position:relative;
}
.gate-check input:checked + .gate-box { background:var(--acid); border-color:var(--acid); }
.gate-check input:checked + .gate-box::after {
  content:''; position:absolute; inset:3px;
  background: var(--ink);
  clip-path: polygon(15% 50%, 40% 75%, 85% 20%, 85% 35%, 45% 85%, 15% 60%);
}
.gate-actions { display:flex; gap:12px; margin-top:28px; }
.gate-btn {
  flex:1; padding:16px 22px; font-family:var(--mono); font-size:11px;
  letter-spacing:0.18em; text-transform:uppercase;
  background:var(--acid); color:var(--ink); font-weight:500;
  transition: background 120ms ease;
}
.gate-btn:hover { background: #eaff80; }
.gate-btn:disabled { opacity:0.3; cursor:not-allowed; background:var(--gray-3); color:var(--gray-1); }
.gate-btn.ghost { background:transparent; color:var(--bone); border:1px solid var(--line); }
.gate-btn.ghost:hover { background:var(--ink-2); }

/* ————— NAVIGATION ————— */
.topnav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(10,11,10,0.88);
  backdrop-filter: blur(16px) saturate(1.1);
  -webkit-backdrop-filter: blur(16px) saturate(1.1);
  border-bottom: 1px solid var(--line);
  padding: 16px 32px;
  display: flex; justify-content: space-between; align-items: center;
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.2em; text-transform: uppercase;
}
.nav-brand { display: flex; gap: 10px; align-items: center; font-weight:600; }
.nav-brand .ad-dot { width:8px; height:8px; background:var(--acid); box-shadow:0 0 10px var(--acid); }
.nav-brand .brand-type { letter-spacing:0.22em; font-weight:600; }
.nav-brand .brand-suffix { color:var(--acid); margin-left:-2px; }
.nav-links { display: flex; gap: 28px; opacity: 0.8; }
.nav-links a { position:relative; transition:color 150ms; }
.nav-links a:hover { color: var(--acid); }
.nav-links a.active { color: var(--acid); }
.nav-right { display:flex; gap:20px; align-items:center; opacity:0.7; }
.nav-loc { letter-spacing:0.22em; }
.cart-btn { display:flex; gap:8px; align-items:center; transition:color 150ms; }
.cart-btn:hover { color: var(--acid); }
.cart-count {
  font-size:10px; padding:1px 6px; border:1px solid currentColor;
  min-width:18px; text-align:center;
}

/* ————— UTILITY ————— */
.gridbg {
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 64px 64px;
}
.kicker { font-family:var(--mono); font-size:10px; letter-spacing:0.22em; text-transform:uppercase; opacity:0.55; margin-bottom:12px; display:block; }
.rule { height:1px; background:var(--line); margin:24px 0; }
.ticker {
  display:flex; gap:24px; font-family:var(--mono); font-size:10px;
  letter-spacing:0.22em; text-transform:uppercase; opacity:0.7; flex-wrap:wrap;
}
.ticker span::before { content:'◆ '; color:var(--acid); margin-right:4px; }
.bone .ticker span::before, .paper .ticker span::before { color: var(--acid-deep); }
.section { position:relative; padding: 110px 64px; border-bottom:1px solid var(--line); }
.section.bone { background:var(--bone); color:var(--ink); border-bottom-color:var(--line-bone); }
.section.paper { background:var(--paper); color:var(--ink); border-bottom-color:var(--line-bone); }
.section-head {
  display:grid; grid-template-columns:180px 1fr; gap:48px;
  align-items:baseline; margin-bottom:56px;
}
.section-num { font-family:var(--mono); font-size:11px; letter-spacing:0.18em; text-transform:uppercase; opacity:0.55; }
.section-title {
  font-family:var(--serif); font-size:clamp(44px, 5.5vw, 84px);
  font-weight:400; line-height:0.98; letter-spacing:-0.02em; margin:0;
}
.section-title em { font-style:italic; color:var(--acid); }
.bone .section-title em, .paper .section-title em { color: var(--acid-deep); }

/* ————— HERO (matches WebHero mock from brand guide) ————— */
.hero {
  position:relative;
  padding: 56px 64px 36px;
  border-bottom:1px solid var(--line);
  overflow:hidden;
  background: var(--ink);
}
.hero-bg {
  position:absolute; inset:0; pointer-events:none;
  background:
    radial-gradient(circle at 80% 35%, rgba(212,255,58,0.10) 0%, transparent 40%);
}
.hero-gridbg {
  position:absolute; inset:0; opacity:1; pointer-events:none;
  background-image:
    linear-gradient(rgba(239,236,227,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(239,236,227,0.04) 1px, transparent 1px);
  background-size: 48px 48px;
}
.hero-content {
  position:relative; z-index:2;
  display:grid; grid-template-columns: 1fr 0.7fr;
  gap:48px; align-items:center;
  margin-top: 64px;
}
.hero-kicker {
  font-family:var(--mono); font-size:11px; letter-spacing:0.22em;
  text-transform:uppercase; opacity:0.6; margin-bottom:18px;
}
.hero-head {
  font-family:var(--serif); font-weight:400;
  font-size: clamp(56px, 8vw, 120px);
  line-height: 0.92; letter-spacing:-0.03em;
  margin:0;
}
.hero-head em { font-style:italic; color:var(--acid); }
.hero-sub {
  margin-top:24px; max-width:48ch; font-size:16px; line-height:1.55; opacity:0.72;
}
.hero-cta-row {
  margin-top:32px; display:flex; gap:12px; align-items:center; flex-wrap:wrap;
}
.hero-vial-stage {
  position:relative;
  display:flex; align-items:center; justify-content:center;
  min-height:420px;
}
.hero-vial-stage .vial-callout {
  position:absolute; top:30px; right:0;
  font-family:var(--mono); font-size:10px; letter-spacing:0.18em;
  text-align:right; line-height:1.6;
}
.hero-vial-stage .vial-callout .acidline { color: var(--acid); margin-bottom:6px; font-weight:500; }
.hero-vial-stage .vial-callout .meta { opacity:0.55; }
.hero-vial-stage .vial-callout .arrow-line {
  position:absolute; top:8px; right:78px; width:60px; height:1px;
  background: rgba(212,255,58,0.4);
}

.hero-ticker {
  position:relative; z-index:2;
  margin-top:48px; padding-top:18px;
  border-top:1px solid var(--line);
  display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap; gap:16px;
  font-family:var(--mono); font-size:10px; letter-spacing:0.22em; text-transform:uppercase; opacity:0.7;
}
.hero-ticker span::before { content:'◆ '; color:var(--acid); margin-right:6px; }

.hero-topmeta {
  position:relative; z-index:2;
  display:flex; justify-content:space-between; align-items:center;
  font-family:var(--mono); font-size:11px; letter-spacing:0.22em; text-transform:uppercase;
  opacity:0.7;
}
.hero-topmeta .left { display:flex; gap:12px; align-items:center; }
.hero-topmeta .left .ad { width:8px; height:8px; background:var(--acid); box-shadow:0 0 10px var(--acid); }
.btn {
  display:inline-flex; align-items:center; gap:10px;
  padding: 18px 26px; font-family:var(--mono); font-size:11px;
  letter-spacing:0.2em; text-transform:uppercase; font-weight:500;
  transition: all 160ms ease; border:1px solid transparent;
}
.btn-primary { background:var(--acid); color:var(--ink); }
.btn-primary:hover { background:#eaff80; transform: translate(0,-1px); box-shadow:0 8px 28px rgba(212,255,58,0.2); }
.btn-ghost { background:transparent; color:var(--bone); border-color:var(--line); }
.btn-ghost:hover { border-color:var(--acid); color:var(--acid); }
.btn-dark { background:var(--ink); color:var(--bone); }
.btn-dark:hover { background:var(--ink-2); }
.btn .arrow { transition: transform 160ms; }
.btn:hover .arrow { transform: translateX(3px); }

.hero-footer {
  position:relative; z-index:2;
  margin-top:80px;
  display:grid; grid-template-columns: repeat(4, 1fr); gap:32px;
  padding-top:32px; border-top:1px solid var(--line);
}
.stat-block { }
.stat-block .label { font-family:var(--mono); font-size:10px; letter-spacing:0.22em; text-transform:uppercase; opacity:0.5; margin-bottom:8px; }
.stat-block .value { font-family:var(--serif); font-size:38px; line-height:1; letter-spacing:-0.01em; }
.stat-block .unit { font-family:var(--mono); font-size:12px; opacity:0.6; margin-left:6px; }

/* ————— TRUST BAR ————— */
.trust-bar {
  background:var(--ink-2); padding: 24px 64px;
  display:flex; justify-content:space-between; align-items:center; gap:32px; flex-wrap:wrap;
  border-bottom:1px solid var(--line);
  font-family:var(--mono); font-size:10px; letter-spacing:0.22em; text-transform:uppercase;
}
.trust-bar .item { display:flex; align-items:center; gap:8px; opacity:0.7; }
.trust-bar .item::before { content:'◆'; color:var(--acid); }

/* ————— PRODUCT GRID (matches WebProductCard mock) ————— */
.products {
  display:grid; grid-template-columns:repeat(3, 1fr); gap: 2px;
  background: var(--line);
  border: 1px solid var(--line);
}
.products.cols-4 { grid-template-columns: repeat(4, 1fr); }
.product-card {
  background: var(--ink-2);
  padding: 22px 22px 20px;
  display:flex; flex-direction:column; gap:0;
  position:relative; transition: background 200ms, transform 200ms;
  border: 1px solid transparent;
  text-decoration:none; color:var(--bone);
}
.product-card:hover { background: var(--ink-3); border-color: rgba(212,255,58,0.2); }
.product-card .top {
  display:flex; justify-content:space-between; align-items:flex-start;
  font-family:var(--mono); font-size:10px; letter-spacing:0.18em; text-transform:uppercase;
  margin-bottom:6px;
}
.product-card .ref { opacity:0.5; }
.product-card .badge-restock {
  background: var(--acid); color: var(--ink);
  padding:3px 7px; font-size:9px; letter-spacing:0.18em; font-weight:600;
}
.product-card .vial-stage {
  height: 200px; margin: 8px 0 14px;
  display:flex; align-items:center; justify-content:center;
  background: radial-gradient(circle at center, rgba(212,255,58,0.06), transparent 70%);
  position:relative; overflow:hidden;
}
.product-card .vial-stage [data-vial] { transform: scale(0.55); transform-origin:center; }
.product-card .pname {
  font-family:var(--sans); font-weight:600; font-size:22px;
  letter-spacing:-0.01em; line-height:1.1; margin:0;
}
.product-card .psub { font-size:12px; opacity:0.55; margin-top:3px; line-height:1.4; }
.product-card .pfoot {
  display:flex; justify-content:space-between; align-items:baseline;
  margin-top:14px; padding-top:12px;
  border-top:1px solid var(--line);
}
.product-card .pmeta {
  font-family:var(--mono); font-size:11px; opacity:0.7; letter-spacing:0.04em;
}
.product-card .pprice {
  font-family:var(--sans); font-size:22px; font-weight:600; letter-spacing:-0.01em;
}

/* ————— EDITORIAL SPLIT ————— */
.split {
  display:grid; grid-template-columns: 1fr 1fr; gap:0;
}
.split > div { padding: 110px 64px; }
.split .left { border-right:1px solid var(--line); }
.split-quote {
  font-family:var(--serif); font-weight:400;
  font-size: clamp(36px, 3.8vw, 64px); line-height:1.05; letter-spacing:-0.015em;
  margin: 0 0 40px;
}
.split-quote em { font-style:italic; color:var(--acid); }
.split .bone-side { background:var(--bone); color:var(--ink); border-right-color:var(--line-bone); }
.bone-side .split-quote em { color:var(--acid-deep); }

/* ————— LAB TRANSPARENCY / COA ————— */
.coa-card {
  background: var(--ink-2); border:1px solid var(--line);
  padding:28px;
  display:grid; grid-template-columns: 1fr auto; gap:24px; align-items:center;
  margin-bottom: 2px;
  transition: background 160ms;
}
.coa-card:hover { background: var(--ink-3); }
.coa-card .batch { font-family:var(--mono); font-size:11px; letter-spacing:0.16em; text-transform:uppercase; opacity:0.55; margin-bottom:4px; }
.coa-card .compound { font-family:var(--serif); font-size:26px; letter-spacing:-0.01em; line-height:1; margin-bottom:8px; }
.coa-card .meta { font-family:var(--mono); font-size:11px; opacity:0.7; display:flex; gap:20px; }
.coa-card .meta b { color:var(--acid); font-weight:500; }
.coa-card .dl {
  padding:12px 18px; border:1px solid var(--line);
  font-family:var(--mono); font-size:10px; letter-spacing:0.2em; text-transform:uppercase;
  display:flex; gap:8px; align-items:center; transition: all 150ms;
}
.coa-card .dl:hover { background: var(--acid); color:var(--ink); border-color:var(--acid); }

/* ————— STEPS ————— */
.steps { display:grid; grid-template-columns: repeat(4, 1fr); gap:2px; background: var(--line); border:1px solid var(--line); }
.step {
  background: var(--ink); padding: 44px 32px; min-height: 240px;
  display:flex; flex-direction:column; justify-content:space-between;
  position:relative; transition:background 180ms;
}
.step:hover { background: var(--ink-2); }
.step .sn { font-family:var(--mono); font-size:11px; letter-spacing:0.2em; opacity:0.5; }
.step .st { font-family:var(--serif); font-size:30px; letter-spacing:-0.01em; line-height:1.05; margin:0; max-width:15ch; }
.step .sd { font-family:var(--mono); font-size:11px; letter-spacing:0.04em; line-height:1.6; opacity:0.65; max-width:32ch; }

/* ————— FAQ ————— */
.faq-list { border-top:1px solid var(--line); }
.faq-item { border-bottom:1px solid var(--line); padding: 28px 0; }
.faq-q {
  display:flex; justify-content:space-between; align-items:center; gap:24px;
  cursor:pointer; transition:color 150ms;
}
.faq-q:hover { color: var(--acid); }
.faq-q .qtext { font-family:var(--serif); font-size: clamp(22px, 2.2vw, 32px); line-height:1.15; letter-spacing:-0.01em; }
.faq-q .qnum { font-family:var(--mono); font-size:11px; letter-spacing:0.2em; opacity:0.5; flex-shrink:0; }
.faq-q .plus { font-family:var(--mono); font-size:20px; flex-shrink:0; transition: transform 200ms; }
.faq-item.open .plus { transform: rotate(45deg); color:var(--acid); }
.faq-a {
  font-size:15px; line-height:1.65; opacity:0.75; max-width:72ch; margin-top:0;
  max-height:0; overflow:hidden; transition: max-height 280ms ease, margin-top 280ms ease;
}
.faq-item.open .faq-a { max-height:400px; margin-top:20px; }

/* ————— NEWSLETTER / CTA ————— */
.mega-cta {
  padding: 140px 64px;
  background: var(--bone); color: var(--ink);
  position:relative; overflow:hidden;
}
.mega-cta .mega-head {
  font-family:var(--serif); font-weight:400;
  font-size: clamp(60px, 8vw, 140px); line-height:0.9; letter-spacing:-0.03em;
  margin:0; max-width:14ch;
}
.mega-cta .mega-head em { font-style:italic; color: var(--acid-deep); }
.mega-cta .mega-form { display:flex; gap:0; margin-top:56px; max-width:680px; border:1px solid var(--line-bone); }
.mega-cta .mega-form input {
  flex:1; border:0; background:transparent; padding:22px 24px;
  font-family:var(--mono); font-size:13px; letter-spacing:0.08em; color:var(--ink); outline:none;
}
.mega-cta .mega-form input::placeholder { color: var(--gray-2); text-transform:uppercase; letter-spacing:0.18em; font-size:11px; }
.mega-cta .mega-form button {
  padding: 22px 32px; background: var(--ink); color:var(--bone);
  font-family:var(--mono); font-size:11px; letter-spacing:0.2em; text-transform:uppercase;
  transition:background 150ms;
}
.mega-cta .mega-form button:hover { background: var(--acid-deep); color: var(--ink); }

/* ————— FOOTER ————— */
.site-footer {
  background: var(--ink); padding: 80px 64px 32px;
  border-top: 1px solid var(--line);
}
.footer-grid {
  display:grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap:48px;
  padding-bottom:64px; border-bottom:1px solid var(--line);
}
.footer-col h4 { font-family:var(--mono); font-size:11px; letter-spacing:0.2em; text-transform:uppercase; opacity:0.5; margin:0 0 20px; font-weight:500; }
.footer-col ul { list-style:none; padding:0; margin:0; display:flex; flex-direction:column; gap:12px; font-family:var(--mono); font-size:12px; letter-spacing:0.08em; }
.footer-col ul a { opacity:0.8; transition:color 150ms; }
.footer-col ul a:hover { color:var(--acid); }
.footer-brand-block .wm { font-family:var(--serif); font-style:italic; font-size:56px; letter-spacing:-0.02em; line-height:0.9; margin-bottom:20px; }
.footer-brand-block .wm em { color:var(--acid); }
.footer-brand-block .blurb { font-size:13px; opacity:0.65; line-height:1.6; max-width:40ch; }
.footer-bot {
  display:flex; justify-content:space-between; align-items:center;
  padding-top:28px; font-family:var(--mono); font-size:10px; letter-spacing:0.18em; text-transform:uppercase; opacity:0.55;
  flex-wrap:wrap; gap:16px;
}
.footer-bot .legal-links { display:flex; gap:24px; }

/* ————— FOUNDING BANNER ————— */
.founding-banner {
  display: block;
  background: var(--acid);
  color: var(--ink);
  text-align: center;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  font-weight: 500;
  padding: 10px 24px;
  text-decoration: none;
  border-bottom: 1px solid rgba(10, 11, 10, 0.15);
  transition: background 140ms ease;
}
.founding-banner:hover { background: #eaff80; }
.founding-banner .arrow { margin-left: 6px; transition: transform 140ms ease; display: inline-block; }
.founding-banner:hover .arrow { transform: translateX(4px); }

/* ————— DISCLAIMER STRIP ————— */
.disclaimer-strip {
  background:var(--blood); color:var(--bone);
  padding: 10px 64px;
  font-family:var(--mono); font-size:10px; letter-spacing:0.22em; text-transform:uppercase;
  display:flex; justify-content:center; align-items:center; gap:32px; overflow:hidden;
  white-space:nowrap;
}
.disclaimer-strip .marquee {
  display:inline-flex; gap:40px; animation: scroll 40s linear infinite;
}
@keyframes scroll { from { transform: translateX(0); } to { transform: translateX(-50%); } }
.disclaimer-strip .marquee span::before { content:'//  '; opacity:0.6; margin-right:4px; }

/* ————— CATALOG FILTERS ————— */
.filter-bar {
  display:flex; gap:8px; align-items:center; flex-wrap:wrap;
  padding: 24px 64px; border-bottom:1px solid var(--line);
  background: var(--ink-2); font-family:var(--mono); font-size:11px; letter-spacing:0.18em; text-transform:uppercase;
}
.filter-bar .label { opacity:0.5; margin-right:12px; }
.filter-chip {
  padding:8px 14px; border:1px solid var(--line); border-radius:99px;
  transition: all 140ms; cursor:pointer;
}
.filter-chip:hover { border-color:var(--bone); }
.filter-chip.active { background:var(--acid); color:var(--ink); border-color:var(--acid); }
.filter-spacer { flex:1; }
.filter-sort { display:flex; gap:8px; align-items:center; opacity:0.7; }

/* ————— PRODUCT DETAIL PAGE ————— */
.pdp {
  padding: 48px 64px 80px;
  display:grid; grid-template-columns: 1.1fr 1fr; gap: 72px;
  border-bottom:1px solid var(--line);
  min-height: 90vh;
}
.pdp-media {
  position:relative;
  background: radial-gradient(circle at 50% 40%, rgba(212,255,58,0.06), transparent 60%), var(--ink-2);
  border:1px solid var(--line);
  aspect-ratio: 1 / 1.05;
  display:flex; align-items:center; justify-content:center;
  overflow:hidden;
}
.pdp-media::before {
  content:''; position:absolute; inset:0;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 32px 32px; opacity:0.4;
}
.pdp-media .stage-label {
  position:absolute; top:16px; left:16px;
  font-family:var(--mono); font-size:10px; letter-spacing:0.22em; text-transform:uppercase; opacity:0.55;
}
.pdp-media .stage-label.r { left:auto; right:16px; }
.pdp-vial { position:relative; z-index:2; }

.pdp-info { padding: 8px 0; }
.pdp-cat { font-family:var(--mono); font-size:10px; letter-spacing:0.22em; text-transform:uppercase; color:var(--acid); margin-bottom:16px; }
.pdp-title { font-family:var(--serif); font-weight:400; font-size: clamp(52px, 6vw, 96px); line-height:0.95; letter-spacing:-0.025em; margin:0 0 8px; }
.pdp-title em { font-style:italic; color:var(--acid); }
.pdp-alias { font-family:var(--mono); font-size:12px; letter-spacing:0.16em; text-transform:uppercase; opacity:0.55; margin-bottom:28px; }
.pdp-blurb { font-size:15px; line-height:1.65; opacity:0.78; max-width:54ch; margin-bottom:32px; }

.spec-grid {
  display:grid; grid-template-columns: 1fr 1fr; gap:0;
  border:1px solid var(--line); margin-bottom:32px;
}
.spec-grid .cell {
  padding:18px 22px; border-right:1px solid var(--line); border-bottom:1px solid var(--line);
}
.spec-grid .cell:nth-child(2n) { border-right:0; }
.spec-grid .cell:nth-last-child(-n+2) { border-bottom:0; }
.spec-grid .k { font-family:var(--mono); font-size:10px; letter-spacing:0.22em; text-transform:uppercase; opacity:0.55; margin-bottom:6px; }
.spec-grid .v { font-family:var(--serif); font-size:22px; line-height:1; }
.spec-grid .v .unit { font-family:var(--mono); font-size:11px; opacity:0.6; margin-left:4px; }

.pdp-price-row {
  display:flex; align-items:flex-end; justify-content:space-between; gap:24px;
  padding:28px 0; border-top:1px solid var(--line); border-bottom:1px solid var(--line); margin-bottom:24px;
}
.pdp-price { font-family:var(--serif); font-size:64px; line-height:1; letter-spacing:-0.02em; }
.pdp-price .gbp { font-family:var(--mono); font-size:18px; opacity:0.5; margin-right:6px; vertical-align:top; }
.pdp-stock { text-align:right; font-family:var(--mono); font-size:10px; letter-spacing:0.22em; text-transform:uppercase; }
.pdp-stock .dotg { display:inline-block; width:6px; height:6px; border-radius:50%; background:var(--plasma); margin-right:8px; box-shadow:0 0 8px var(--plasma); }

.qty-row { display:flex; gap:12px; margin-bottom:16px; }
.qty-stepper { display:flex; border:1px solid var(--line); }
.qty-stepper button { width:44px; height:52px; font-size:16px; transition:background 120ms; }
.qty-stepper button:hover { background:var(--ink-2); }
.qty-stepper input { width:60px; text-align:center; background:transparent; border:0; border-left:1px solid var(--line); border-right:1px solid var(--line); color:var(--bone); font-family:var(--mono); font-size:14px; }
.qty-stepper input::-webkit-outer-spin-button, .qty-stepper input::-webkit-inner-spin-button { -webkit-appearance:none; margin:0; }
.btn-buy { flex:1; height:52px; background:var(--acid); color:var(--ink); font-family:var(--mono); font-size:11px; letter-spacing:0.22em; text-transform:uppercase; font-weight:500; transition:all 160ms; }
.btn-buy:hover { background:#eaff80; box-shadow:0 8px 28px rgba(212,255,58,0.25); }

.pdp-trust {
  display:flex; flex-direction:column; gap:8px; margin-top:24px;
  font-family:var(--mono); font-size:11px; letter-spacing:0.06em;
}
.pdp-trust .ti { display:flex; gap:10px; align-items:center; opacity:0.75; }
.pdp-trust .ti::before { content:''; width:5px; height:5px; background:var(--acid); border-radius:50%; }

/* ————— PDP TABS / DETAIL ————— */
.pdp-tabs {
  padding: 80px 64px; border-bottom:1px solid var(--line);
  display:grid; grid-template-columns: 280px 1fr; gap: 72px;
}
.pdp-tab-nav { display:flex; flex-direction:column; gap:0; border-top:1px solid var(--line); }
.pdp-tab-nav button {
  padding: 22px 0; text-align:left; border-bottom:1px solid var(--line);
  font-family:var(--mono); font-size:11px; letter-spacing:0.18em; text-transform:uppercase;
  display:flex; justify-content:space-between; align-items:center;
  transition:color 150ms;
}
.pdp-tab-nav button:hover { color:var(--acid); }
.pdp-tab-nav button.active { color:var(--acid); }
.pdp-tab-nav button .dash { opacity:0.4; }
.pdp-tab-nav button.active .dash { opacity:1; }

.pdp-tab-body { font-size:15px; line-height:1.7; opacity:0.82; max-width:68ch; }
.pdp-tab-body h3 { font-family:var(--serif); font-weight:400; font-size:28px; letter-spacing:-0.01em; margin: 0 0 16px; }
.pdp-tab-body p { margin: 0 0 20px; }
.pdp-tab-body .ref-list { font-family:var(--mono); font-size:11px; line-height:1.8; opacity:0.7; }
.pdp-tab-body .ref-list li { margin-bottom:4px; }

/* ————— CHECKOUT ————— */
.checkout {
  padding: 56px 64px 80px;
  display:grid; grid-template-columns: 1.4fr 1fr; gap: 48px;
  min-height: 100vh;
}
.checkout h2 { font-family:var(--serif); font-weight:400; font-size:44px; letter-spacing:-0.02em; margin: 0 0 8px; }
.checkout .sec { padding: 28px 0; border-bottom:1px solid var(--line); }
.checkout .sec:last-child { border-bottom:0; }
.checkout .sec-head { display:flex; justify-content:space-between; align-items:baseline; margin-bottom:20px; }
.checkout .sec-head .num { font-family:var(--mono); font-size:11px; letter-spacing:0.22em; text-transform:uppercase; opacity:0.55; }
.checkout .sec-head .title { font-family:var(--serif); font-size:28px; letter-spacing:-0.01em; }

.f-row { display:grid; grid-template-columns: 1fr 1fr; gap:12px; margin-bottom:12px; }
.f-row.single { grid-template-columns: 1fr; }
.f-input {
  display:flex; flex-direction:column; gap:6px;
}
.f-input label { font-family:var(--mono); font-size:10px; letter-spacing:0.22em; text-transform:uppercase; opacity:0.55; }
.f-input input, .f-input select {
  background:var(--ink-2); border:1px solid var(--line); padding:14px 16px;
  color:var(--bone); font-family:var(--mono); font-size:13px; outline:none;
  transition:border-color 150ms;
}
.f-input input:focus, .f-input select:focus { border-color:var(--acid); }

.pay-opts { display:flex; flex-direction:column; gap:8px; }
.pay-opt {
  display:flex; gap:14px; align-items:center; padding:16px 18px;
  border:1px solid var(--line); cursor:pointer; transition:all 150ms;
}
.pay-opt:hover { border-color:var(--bone); }
.pay-opt.selected { border-color:var(--acid); background: rgba(212,255,58,0.04); }
.pay-opt .radio { width:14px; height:14px; border:1px solid var(--bone); border-radius:50%; flex-shrink:0; position:relative; }
.pay-opt.selected .radio::after { content:''; position:absolute; inset:3px; background:var(--acid); border-radius:50%; }
.pay-opt .pay-info { flex:1; }
.pay-opt .pay-info .pt { font-family:var(--mono); font-size:12px; letter-spacing:0.08em; text-transform:uppercase; }
.pay-opt .pay-info .ps { font-family:var(--mono); font-size:10px; letter-spacing:0.14em; text-transform:uppercase; opacity:0.55; margin-top:4px; }
.pay-opt .pay-badge { font-family:var(--mono); font-size:9px; letter-spacing:0.2em; text-transform:uppercase; padding:4px 8px; border:1px solid var(--line); opacity:0.7; }

.order-summary {
  position:sticky; top:96px; height:fit-content;
  background:var(--ink-2); border:1px solid var(--line); padding: 36px;
}
.order-summary h3 { font-family:var(--mono); font-size:11px; letter-spacing:0.22em; text-transform:uppercase; margin:0 0 24px; font-weight:500; opacity:0.7; }
.order-item { display:flex; justify-content:space-between; padding: 14px 0; border-bottom:1px solid var(--line); }
.order-item .oi-left { display:flex; flex-direction:column; gap:4px; }
.order-item .oi-name { font-family:var(--serif); font-size:18px; letter-spacing:-0.005em; }
.order-item .oi-sub { font-family:var(--mono); font-size:10px; letter-spacing:0.16em; opacity:0.5; text-transform:uppercase; }
.order-item .oi-price { font-family:var(--mono); font-size:13px; }
.order-line { display:flex; justify-content:space-between; padding: 10px 0; font-family:var(--mono); font-size:12px; letter-spacing:0.06em; }
.order-line.label { opacity:0.6; }
.order-total {
  display:flex; justify-content:space-between; padding: 20px 0 8px;
  border-top:1px solid var(--line); margin-top:8px;
}
.order-total .tlabel { font-family:var(--mono); font-size:11px; letter-spacing:0.22em; text-transform:uppercase; opacity:0.75; }
.order-total .tprice { font-family:var(--serif); font-size:38px; letter-spacing:-0.01em; }

.research-notice {
  margin-top:20px; padding: 14px 16px;
  border:1px dashed var(--line);
  font-family:var(--mono); font-size:10px; letter-spacing:0.12em; line-height:1.6; opacity:0.65;
}

/* ————— RESPONSIVE ————— */
@media (max-width: 1024px) {
  .section, .hero, .trust-bar, .disclaimer-strip, .site-footer, .pdp, .pdp-tabs, .checkout, .filter-bar, .mega-cta { padding-left: 32px; padding-right: 32px; }
  .products, .products.cols-4 { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .split { grid-template-columns: 1fr; }
  .split .left { border-right:0; border-bottom:1px solid var(--line); }
  .pdp { grid-template-columns: 1fr; gap: 32px; }
  .pdp-tabs { grid-template-columns: 1fr; gap: 32px; }
  .checkout { grid-template-columns: 1fr; }
  .order-summary { position:static; }
  .hero-footer { grid-template-columns: repeat(2, 1fr); }
  .section-head { grid-template-columns: 1fr; gap:20px; margin-bottom:40px; }
}
@media (max-width: 640px) {
  .nav-links { display:none; }
  .section, .hero, .trust-bar, .disclaimer-strip, .site-footer, .pdp, .pdp-tabs, .checkout, .filter-bar, .mega-cta { padding-left: 20px; padding-right: 20px; }
  .products, .products.cols-4 { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap:32px; }
  .hero-footer { grid-template-columns: 1fr 1fr; gap:20px; }
  .f-row { grid-template-columns: 1fr; }
  .spec-grid { grid-template-columns: 1fr; }
  .spec-grid .cell { border-right:0 !important; }
}