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

:root {
  --bg: #131a2b;
  --bg-elevated: #1b2438;
  --bg-card: #1e2a42;
  --line: rgba(168, 194, 255, 0.22);
  --line-strong: rgba(168, 194, 255, 0.4);
  --text: #f4f6fc;
  --text-dim: rgba(244, 246, 252, 0.78);
  --accent: #4c82ff;
  --accent-bright: #7ba3ff;
  --glow: rgba(76, 130, 255, 0.55);

  --display: 'Space Grotesk', sans-serif;
  --mono: 'IBM Plex Mono', monospace;
}

* { box-sizing: border-box; }

body.dark {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--display);
  -webkit-font-smoothing: antialiased;
}

.dark a { color: inherit; text-decoration: none; }
.dark img { max-width: 100%; display: block; }

.dark .container { max-width: 1240px; margin: 0 auto; padding: 0 32px; }

.dark .eyebrow-row {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* ── UTILITY BAR ────────────────────────────────────────────── */
.util-bar {
  background: var(--bg-elevated);
  border-bottom: 1px solid var(--line);
  padding: 9px 0;
}
.util-inner {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 32px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}
.util-badges { display: flex; gap: 26px; flex-wrap: wrap; }
.util-badge {
  display: flex;
  align-items: center;
  gap: 7px;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-dim);
}
.util-badge svg { width: 13px; height: 13px; stroke: var(--accent-bright); flex-shrink: 0; }

/* ── HEADER ─────────────────────────────────────────────────── */
.dark-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(19, 26, 43, 0.9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.dark-header-inner {
  max-width: 1240px;
  margin: 0 auto;
  padding: 18px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand-block { display: flex; align-items: center; gap: 11px; }
.brand-mark {
  width: 34px; height: 34px;
  display: flex; align-items: center; justify-content: center;
}
.brand-text .wordmark-dark { font-size: 20px; font-weight: 700; letter-spacing: -0.01em; line-height: 1; }
.brand-text .tagline-dark {
  font-family: var(--mono); font-size: 8.5px; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--text-dim); margin-top: 3px;
}

.dark-nav { display: flex; gap: 34px; }
.dark-nav a {
  font-size: 13.5px; font-weight: 500; color: var(--text-dim);
  transition: color 0.15s ease;
}
.dark-nav a.active, .dark-nav a:hover { color: var(--accent-bright); }

.cart-icon-link {
  position: relative;
  width: 38px; height: 38px;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
}
.cart-icon-link svg { width: 16px; height: 16px; stroke: var(--text); }
.cart-icon-link .cart-badge-dark {
  position: absolute; top: -7px; right: -7px;
  background: var(--accent); color: #fff;
  font-family: var(--mono); font-size: 10px;
  min-width: 17px; height: 17px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
}

/* ── HERO ───────────────────────────────────────────────────── */
.dark-hero { position: relative; padding: 76px 0 40px; overflow: hidden; }
.hex-field {
  position: absolute; inset: 0; opacity: 0.5; pointer-events: none;
  background-image:
    linear-gradient(30deg, var(--line) 1px, transparent 1px),
    linear-gradient(150deg, var(--line) 1px, transparent 1px);
  background-size: 46px 80px;
  mask-image: radial-gradient(ellipse 60% 60% at 70% 40%, black, transparent 75%);
}
.dark-hero-inner {
  position: relative; z-index: 2;
  display: grid; grid-template-columns: 0.95fr 1.05fr; gap: 40px; align-items: center;
}
.dark-hero h1 {
  font-size: 54px; line-height: 1.06; font-weight: 700; letter-spacing: -0.01em; margin: 0 0 20px;
}
.dark-hero h1 .accent-word { color: var(--accent-bright); }
.dark-hero p.lede-dark { font-size: 15.5px; color: var(--text-dim); max-width: 44ch; margin-bottom: 30px; }

.btn-dark-primary {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--accent); color: #fff;
  font-family: var(--mono); font-size: 12px; letter-spacing: 0.06em; text-transform: uppercase;
  padding: 13px 22px; border-radius: 6px; border: none; cursor: pointer;
  box-shadow: 0 0 0 rgba(47,107,255,0); transition: box-shadow 0.2s ease, transform 0.15s ease;
}
.btn-dark-primary:hover { box-shadow: 0 0 26px var(--glow); }
.btn-dark-outline {
  display: inline-flex; align-items: center; gap: 8px;
  background: transparent; color: var(--text);
  font-family: var(--mono); font-size: 12px; letter-spacing: 0.06em; text-transform: uppercase;
  padding: 13px 22px; border-radius: 6px; border: 1px solid var(--line-strong); cursor: pointer;
}
.btn-dark-outline:hover { border-color: var(--accent-bright); }

.trust-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; margin-top: 44px; }
.trust-item { display: flex; flex-direction: column; align-items: flex-start; gap: 10px; }
.trust-item svg { width: 24px; height: 24px; stroke: var(--accent-bright); }
.trust-item span { font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.05em; text-transform: uppercase; color: var(--text-dim); line-height: 1.4; }

/* Molecule graphic */
.molecule-wrap { position: relative; height: 480px; }
.molecule-wrap svg { position: absolute; inset: 0; width: 100%; height: 100%; }
.mol-line { stroke: var(--accent-bright); stroke-width: 1.4; opacity: 0.55; filter: drop-shadow(0 0 4px var(--glow)); }
.mol-node { fill: var(--accent-bright); filter: drop-shadow(0 0 6px var(--glow)); }
.mol-node.big { fill: #cfe0ff; }
.mol-pulse { animation: molpulse 3.2s ease-in-out infinite; }
@keyframes molpulse { 0%, 100% { opacity: 0.35; } 50% { opacity: 1; } }

/* ── PRODUCTS SECTION ───────────────────────────────────────── */
.dark-section { padding: 72px 0; }
.dark-section-title { text-align: center; font-size: 30px; font-weight: 700; letter-spacing: 0.02em; margin-bottom: 30px; }

.filter-tabs { display: flex; justify-content: center; gap: 30px; flex-wrap: wrap; margin-bottom: 34px; border-bottom: 1px solid var(--line); padding-bottom: 16px; }
.filter-tab {
  font-family: var(--mono); font-size: 11.5px; letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--text-dim); background: none; border: none; cursor: pointer; padding: 4px 0; position: relative;
}
.filter-tab.active { color: var(--accent-bright); }
.filter-tab.active::after { content: ""; position: absolute; left: 0; right: 0; bottom: -17px; height: 2px; background: var(--accent-bright); }

.dark-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 16px; }
.dark-card {
  background: var(--bg-card); border: 1px solid var(--line); border-radius: 10px;
  padding: 16px; position: relative; transition: border-color 0.15s ease, transform 0.15s ease;
  display: block;
}
.dark-card:hover { border-color: var(--line-strong); transform: translateY(-3px); }
.stock-flag {
  position: absolute; top: 10px; right: 10px;
  background: rgba(19,26,43,0.85); border: 1px solid var(--line-strong);
  font-family: var(--mono); font-size: 8.5px; letter-spacing: 0.06em; text-transform: uppercase;
  padding: 3px 7px; border-radius: 4px; color: var(--text-dim);
}
.vial-stage { height: 128px; display: flex; align-items: center; justify-content: center; margin-bottom: 12px; }
.vial-stage svg { height: 110px; }
.dark-card-name { font-size: 14.5px; font-weight: 600; margin-bottom: 2px; }
.dark-card-size { font-family: var(--mono); font-size: 10.5px; color: var(--text-dim); margin-bottom: 8px; }
.dark-card-price { font-family: var(--mono); font-size: 13px; color: var(--accent-bright); margin-bottom: 12px; }
.dark-view-btn {
  display: block; text-align: center; width: 100%;
  font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.05em; text-transform: uppercase;
  padding: 9px; border: 1px solid var(--line-strong); border-radius: 6px; color: var(--text);
}
.dark-view-btn:hover { border-color: var(--accent-bright); color: var(--accent-bright); }

.view-all-row { text-align: center; margin-top: 30px; }
.btn-dark-outline.wide { padding: 13px 30px; }

/* ── PROMO CARDS ────────────────────────────────────────────── */
.promo-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.promo-card {
  background: var(--bg-card); border: 1px solid var(--line); border-radius: 12px;
  padding: 30px 32px; display: flex; align-items: center; justify-content: space-between; gap: 20px;
}
.promo-icon { width: 44px; height: 44px; border: 1px solid var(--line-strong); border-radius: 10px; display: flex; align-items: center; justify-content: center; margin-bottom: 16px; }
.promo-icon svg { width: 20px; height: 20px; stroke: var(--accent-bright); }
.promo-card h3 { font-size: 19px; margin: 0 0 10px; }
.promo-card h3 .accent-word { color: var(--accent-bright); }
.promo-card p { font-size: 13.5px; color: var(--text-dim); max-width: 34ch; margin-bottom: 18px; }
.promo-visual { flex-shrink: 0; opacity: 0.9; }

/* ── NEWSLETTER ─────────────────────────────────────────────── */
.newsletter-bar {
  background: var(--bg-elevated); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
  padding: 28px 0;
}
.newsletter-inner { display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
.newsletter-left { display: flex; align-items: center; gap: 16px; }
.newsletter-left svg { width: 22px; height: 22px; stroke: var(--accent-bright); flex-shrink: 0; }
.newsletter-left p { margin: 2px 0 0; font-size: 12.5px; color: var(--text-dim); }
.newsletter-form { display: flex; gap: 10px; }
.newsletter-form input {
  background: var(--bg-card); border: 1px solid var(--line-strong); border-radius: 6px;
  padding: 11px 14px; color: var(--text); font-family: var(--display); font-size: 13px; min-width: 240px;
}
.newsletter-form input::placeholder { color: var(--text-dim); }

/* ── FOOTER ─────────────────────────────────────────────────── */
.dark-footer { padding: 50px 0 0; }
.dark-footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 30px; padding-bottom: 34px; }
.dark-footer-col span.col-label { font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--text-dim); display: block; margin-bottom: 12px; }
.dark-footer-col a, .dark-footer-col .contact-line { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--text-dim); margin-top: 9px; }
.dark-footer-col a:hover { color: var(--accent-bright); }
.dark-footer-col .contact-line svg { width: 13px; height: 13px; stroke: var(--accent-bright); flex-shrink: 0; }
.social-row { display: flex; gap: 10px; margin-top: 12px; }
.social-row a { width: 32px; height: 32px; border: 1px solid var(--line-strong); border-radius: 8px; display: flex; align-items: center; justify-content: center; margin-top: 0; }
.social-row svg { width: 14px; height: 14px; stroke: var(--text); }
.dark-footer-legal {
  border-top: 1px solid var(--line); padding: 16px 0; text-align: center;
  font-family: var(--mono); font-size: 10.5px; color: var(--text-dim);
}

/* ── RESPONSIVE ─────────────────────────────────────────────── */
@media (max-width: 980px) {
  .dark-hero-inner { grid-template-columns: 1fr; }
  .molecule-wrap { height: 300px; }
  .dark-grid { grid-template-columns: repeat(3, 1fr); }
  .dark-nav { display: none; }
  .promo-row { grid-template-columns: 1fr; }
  .dark-footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 600px) {
  .dark-grid { grid-template-columns: repeat(2, 1fr); }
  .trust-row { grid-template-columns: repeat(2, 1fr); }
  .dark-hero h1 { font-size: 38px; }
  .util-badges { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  .mol-pulse { animation: none; }
}

/* ── SHIPPING BANNER ────────────────────────────────────────── */
.ship-banner {
  background: linear-gradient(90deg, rgba(47,107,255,0.16), rgba(47,107,255,0.05));
  border-bottom: 1px solid var(--line);
  padding: 8px 0;
  display: flex; align-items: center; justify-content: center; gap: 8px;
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.05em; text-transform: uppercase;
  color: var(--accent-bright);
}
.ship-banner svg { width: 14px; height: 14px; stroke: var(--accent-bright); }

/* ── FORMS (inquiry / affiliate) ────────────────────────────── */
.form-card { background: var(--bg-card); border: 1px solid var(--line); border-radius: 12px; padding: 30px; }
.form-field { margin-bottom: 18px; }
.form-field label { display: block; font-family: var(--mono); font-size: 11px; text-transform: uppercase; letter-spacing: 0.06em; color: var(--text-dim); margin-bottom: 7px; }
.form-field input, .form-field select, .form-field textarea {
  width: 100%; background: var(--bg-elevated); border: 1px solid var(--line-strong); border-radius: 6px;
  padding: 11px 13px; color: var(--text); font-family: var(--display); font-size: 14px;
}
.form-field textarea { resize: vertical; min-height: 100px; }
.form-field input::placeholder, .form-field textarea::placeholder { color: rgba(232,237,249,0.35); }
.form-note { font-size: 12px; color: var(--text-dim); margin-top: 14px; }

/* ── PRODUCT SPEC LIST (PDP) ───────────────────────────────── */
.spec-list { display: grid; gap: 10px; margin-bottom: 28px; }
.spec-row { display: grid; grid-template-columns: 130px 1fr; gap: 16px; font-size: 13.5px; padding-bottom: 10px; border-bottom: 1px solid var(--line); }
.spec-row span:first-child { font-family: var(--mono); font-size: 11px; text-transform: uppercase; letter-spacing: 0.05em; color: var(--text-dim); }

/* ── POPULAR SECTION (home) ────────────────────────────────── */
.popular-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
@media (max-width: 980px) { .popular-grid { grid-template-columns: repeat(2, 1fr); } }

/* ── SIMPLE CONTENT PAGES (about/faq) ──────────────────────── */
.content-page { max-width: 760px; margin: 0 auto; padding: 60px 0 90px; }
.content-page h1 { font-size: 38px; margin-bottom: 20px; }
.content-page p { font-size: 15px; color: var(--text-dim); margin-bottom: 16px; line-height: 1.65; }
.faq-item { border-bottom: 1px solid var(--line); padding: 22px 0; }
.faq-item h3 { font-size: 16.5px; font-weight: 600; margin-bottom: 8px; }
.faq-item p { font-size: 14px; color: var(--text-dim); margin: 0; }

/* Free-shipping progress bar (cart) */
.ship-progress-wrap { margin: 18px 0 6px; }
.ship-progress-track { height: 6px; background: var(--line); border-radius: 3px; overflow: hidden; }
.ship-progress-fill { height: 100%; background: var(--accent); border-radius: 3px; transition: width 0.3s ease; }
.ship-progress-text { font-family: var(--mono); font-size: 11px; color: var(--text-dim); margin-top: 8px; }

.btn-block { width: 100%; }

/* ── ACCOUNT PAGE ───────────────────────────────────────────── */
.auth-tabs { display: flex; gap: 6px; margin-bottom: 22px; border: 1px solid var(--line-strong); border-radius: 8px; padding: 4px; }
.auth-tab { flex: 1; text-align: center; font-family: var(--mono); font-size: 11.5px; text-transform: uppercase; letter-spacing: 0.05em; padding: 9px; border-radius: 6px; cursor: pointer; color: var(--text-dim); background: none; border: none; }
.auth-tab.active { background: var(--accent); color: #fff; }
.auth-panel { display: none; }
.auth-panel.active { display: block; }
.account-status-card { background: var(--bg-card); border: 1px solid var(--line-strong); border-radius: 12px; padding: 30px; text-align: center; }
.auth-message { font-size: 12.5px; margin-top: 12px; font-family: var(--mono); }
.auth-message.error { color: #e0653f; }
.auth-message.success { color: var(--accent-bright); }

/* ── SALE PRICING ───────────────────────────────────────────── */
.price-orig { text-decoration: line-through; color: var(--text-dim); font-size: 0.85em; margin-right: 4px; }
.price-sale { color: var(--accent-bright); font-weight: 700; }

/* ── SEARCH BAR ─────────────────────────────────────────────── */
.search-bar-wrap { position: relative; max-width: 420px; margin: 0 auto 30px; }
.search-bar-wrap svg { position: absolute; left: 14px; top: 50%; transform: translateY(-50%); width: 15px; height: 15px; stroke: var(--text-dim); }
.search-bar-wrap input {
  width: 100%; background: var(--bg-card); border: 1px solid var(--line-strong); border-radius: 8px;
  padding: 12px 14px 12px 38px; color: var(--text); font-family: var(--display); font-size: 14px;
}
.search-bar-wrap input::placeholder { color: var(--text-dim); }
.search-empty { text-align: center; padding: 50px 0; color: var(--text-dim); font-size: 14px; }

/* ── PRODUCT IMAGE (with SVG fallback) ─────────────────────── */
.vial-stage img { max-height: 100%; max-width: 100%; object-fit: contain; border-radius: 6px; }

/* ── COA LINK ───────────────────────────────────────────────── */
.coa-link {
  display: inline-flex; align-items: center; gap: 7px; font-family: var(--mono); font-size: 11.5px;
  text-transform: uppercase; letter-spacing: 0.05em; color: var(--accent-bright); border: 1px solid var(--line-strong);
  padding: 9px 14px; border-radius: 6px; margin-top: 14px;
}
.coa-link:hover { border-color: var(--accent-bright); }
.coa-link svg { width: 14px; height: 14px; stroke: currentColor; }