@import url('https://fonts.googleapis.com/css2?family=Archivo:wght@300;400;500;600;700;800&display=swap');
@import url('https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.0/css/all.min.css');

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

:root {
  --white: #ffffff;
  --bg: #f4f5f7;
  --bg2: #ebedf0;
  --ink: #1c1f24;
  --ink2: #3d4149;
  --muted: #6b7280;
  --accent: #2563eb;
  --accent-hover: #1d4ed8;
  --accent-light: #eff6ff;
  --border: #d1d5db;
  --border2: #e5e7eb;
  --red: #dc2626;
  --green: #16a34a;
  --font: 'Archivo', sans-serif;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--white);
  color: var(--ink);
  font-size: 15px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button { cursor: pointer; font-family: var(--font); border: none; }
ul { list-style: none; }

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* TOPBAR */
.topbar {
  background: var(--ink);
  color: #9ca3af;
  font-size: 12px;
  padding: 8px 24px;
  text-align: center;
}
.topbar a { color: #d1d5db; text-decoration: underline; }

/* HEADER */
header {
  background: var(--white);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 200;
  box-shadow: 0 1px 3px rgba(0,0,0,0.06);
}
.header-top {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 14px 24px;
  max-width: 1200px;
  margin: 0 auto;
}
.logo {
  font-size: 22px;
  font-weight: 800;
  color: var(--ink);
  letter-spacing: -0.02em;
  flex-shrink: 0;
  white-space: nowrap;
}
.logo span { color: var(--accent); font-weight: 400; }

.search-wrap {
  flex: 1;
  display: flex;
  max-width: 560px;
  border: 1.5px solid var(--border);
  border-radius: 6px;
  overflow: hidden;
}
.search-wrap select {
  border: none;
  border-right: 1px solid var(--border);
  background: var(--bg);
  padding: 0 12px;
  font-family: var(--font);
  font-size: 13px;
  color: var(--ink2);
  outline: none;
  cursor: pointer;
  min-width: 100px;
}
.search-wrap input {
  flex: 1;
  border: none;
  padding: 10px 14px;
  font-family: var(--font);
  font-size: 14px;
  outline: none;
  color: var(--ink);
  min-width: 0;
}
.search-wrap input::placeholder { color: var(--muted); }
.search-btn {
  background: var(--accent);
  border: none;
  color: #fff;
  padding: 0 18px;
  font-size: 15px;
  display: flex;
  align-items: center;
  transition: background 0.2s;
  cursor: pointer;
}
.search-btn:hover { background: var(--accent-hover); }

.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-left: auto;
  flex-shrink: 0;
}
.header-actions a {
  font-size: 13px;
  color: var(--muted);
}
.header-actions a:hover { color: var(--ink); }
.btn-login {
  border: 1.5px solid var(--border);
  padding: 7px 16px;
  border-radius: 5px;
  font-size: 13px;
  font-weight: 500;
  color: var(--ink) !important;
  white-space: nowrap;
}
.btn-login:hover { border-color: var(--accent); color: var(--accent) !important; }

.header-nav {
  background: var(--bg);
  border-top: 1px solid var(--border2);
}
.header-nav ul {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  gap: 0;
}
.header-nav li a {
  display: block;
  padding: 10px 18px;
  font-size: 13.5px;
  font-weight: 500;
  color: var(--ink2);
  border-bottom: 2px solid transparent;
  transition: color 0.15s, border-color 0.15s;
  white-space: nowrap;
}
.header-nav li a:hover { color: var(--accent); }
.header-nav li a.active { color: var(--accent); border-bottom-color: var(--accent); }
.header-nav .nav-right { margin-left: auto; }

/* MOBILE NAV TOGGLE */
.hamburger {
  display: none;
  background: none;
  border: none;
  font-size: 20px;
  color: var(--ink);
  margin-left: auto;
  cursor: pointer;
}
.mobile-nav {
  display: none;
  flex-direction: column;
  background: var(--white);
  border-top: 1px solid var(--border);
  padding: 8px 0;
}
.mobile-nav a {
  display: block;
  padding: 12px 24px;
  font-size: 14px;
  color: var(--ink2);
  border-bottom: 1px solid var(--border2);
}
.mobile-nav.open { display: flex; }

/* HERO */
.hero {
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}
.hero-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 64px 24px 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: end;
}
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--accent-light);
  color: var(--accent);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 5px 10px;
  border-radius: 4px;
  margin-bottom: 20px;
}
.hero-eyebrow i { font-size: 9px; }
.hero h1 {
  font-size: clamp(36px, 5vw, 58px);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: var(--ink);
  margin-bottom: 18px;
}
.hero h1 span { color: var(--accent); font-weight: 300; }
.hero-desc {
  font-size: 15px;
  color: var(--muted);
  line-height: 1.7;
  max-width: 440px;
  margin-bottom: 32px;
}
.hero-ctas { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 40px; }

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent);
  color: #fff;
  padding: 11px 22px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: background 0.2s;
  white-space: nowrap;
}
.btn-primary:hover { background: var(--accent-hover); }
.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--white);
  color: var(--ink);
  padding: 11px 22px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 500;
  border: 1.5px solid var(--border);
  cursor: pointer;
  transition: border-color 0.2s, color 0.2s;
  white-space: nowrap;
}
.btn-secondary:hover { border-color: var(--accent); color: var(--accent); }

.hero-stats {
  display: flex;
  gap: 36px;
  flex-wrap: wrap;
}
.hero-stat strong {
  display: block;
  font-size: 28px;
  font-weight: 800;
  color: var(--ink);
  letter-spacing: -0.03em;
}
.hero-stat span { font-size: 12px; color: var(--muted); }

.hero-visual { align-self: end; }
.hero-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}
.hero-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 8px 8px 0 0;
  padding: 16px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}
.hero-card:nth-child(2),
.hero-card:nth-child(4) { margin-top: 20px; }
.hc-tag { font-size: 10px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.07em; color: var(--accent); margin-bottom: 6px; }
.hc-name { font-size: 13px; font-weight: 600; color: var(--ink); margin-bottom: 3px; }
.hc-cas { font-size: 11px; color: var(--muted); font-family: monospace; margin-bottom: 8px; }
.hc-purity {
  display: inline-block;
  background: var(--accent-light);
  color: var(--accent);
  font-size: 10px;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: 3px;
}

/* TRUST BAR */
.trust-bar {
  border-bottom: 1px solid var(--border);
  background: var(--white);
  padding: 16px 24px;
}
.trust-bar-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-around;
  gap: 16px;
  flex-wrap: wrap;
}
.trust-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 500;
  color: var(--ink2);
}
.trust-item i { color: var(--accent); font-size: 15px; width: 20px; text-align: center; }
.trust-divider { width: 1px; height: 28px; background: var(--border); }

/* SECTIONS */
.section { padding: 64px 0; }
.section-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 32px;
  gap: 16px;
  flex-wrap: wrap;
}
.section-label {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 6px;
}
.section-title {
  font-size: clamp(22px, 3vw, 32px);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--ink);
  line-height: 1.15;
}
.section-title span { color: var(--accent); font-weight: 300; }
.link-all {
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  display: flex;
  align-items: center;
  gap: 5px;
  white-space: nowrap;
}
.link-all:hover { text-decoration: underline; }

/* COMPOUND CARDS */
.compounds-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.compound-card {
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  background: var(--white);
  transition: box-shadow 0.2s, border-color 0.2s;
  display: block;
}
.compound-card:hover { box-shadow: 0 4px 16px rgba(0,0,0,0.09); border-color: var(--accent); }
.cc-img {
  background: var(--bg);
  height: 130px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-bottom: 1px solid var(--border2);
  position: relative;
}
.cc-img svg { width: 90px; height: 90px; opacity: 0.2; }
.cc-badge {
  position: absolute;
  top: 8px;
  right: 8px;
  background: #dcfce7;
  color: var(--green);
  font-size: 10px;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: 3px;
}
.cc-body { padding: 14px; }
.cc-ref { font-size: 11px; color: var(--muted); font-family: monospace; margin-bottom: 3px; }
.cc-name { font-size: 14px; font-weight: 700; color: var(--ink); margin-bottom: 4px; }
.cc-formula { font-family: monospace; font-size: 11px; color: var(--muted); margin-bottom: 10px; }
.cc-meta { display: flex; justify-content: space-between; align-items: center; }
.cc-purity { font-size: 12px; font-weight: 700; color: var(--green); }
.cc-link {
  font-size: 12px;
  font-weight: 600;
  color: var(--accent);
  border: 1px solid var(--accent-light);
  padding: 3px 10px;
  border-radius: 4px;
  background: var(--accent-light);
}
.cc-link:hover { background: var(--accent); color: #fff; }

/* FEATURED PRODUCT */
.featured-wrap { padding: 0 24px 64px; max-width: 1200px; margin: 0 auto; }
.featured-product {
  background: #1e2330;
  color: var(--white);
  border-radius: 10px;
  overflow: hidden;
  display: grid;
  grid-template-columns: 1fr 380px;
}
.fp-left { padding: 48px; }
.fp-eyebrow { font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.1em; color: #60a5fa; margin-bottom: 16px; display: flex; align-items: center; gap: 6px; }
.fp-left h2 { font-size: clamp(28px, 3vw, 42px); font-weight: 800; letter-spacing: -0.03em; line-height: 1.05; margin-bottom: 14px; }
.fp-left h2 span { color: #60a5fa; font-weight: 300; }
.fp-left p { color: #9ca3af; font-size: 14px; line-height: 1.7; margin-bottom: 28px; max-width: 420px; }
.fp-specs { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-bottom: 32px; }
.fp-spec { border-left: 2px solid #374151; padding-left: 12px; }
.fp-spec-label { font-size: 10px; color: #6b7280; text-transform: uppercase; letter-spacing: 0.07em; margin-bottom: 2px; }
.fp-spec-val { font-size: 13px; font-weight: 700; color: var(--white); font-family: monospace; }
.fp-actions { display: flex; gap: 10px; flex-wrap: wrap; }
.btn-white {
  background: var(--white);
  color: var(--ink);
  padding: 10px 20px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 600;
  border: none;
  cursor: pointer;
}
.btn-white:hover { opacity: 0.9; }
.btn-outline-white {
  background: transparent;
  color: var(--white);
  padding: 10px 20px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 500;
  border: 1.5px solid #374151;
  cursor: pointer;
}
.btn-outline-white:hover { border-color: #6b7280; }
.fp-right {
  background: #161a27;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px;
}
.fp-molecule svg { width: 100%; max-width: 260px; height: auto; }

/* APPLICATIONS */
.applications { background: var(--bg); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.apps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
}
.app-card {
  background: var(--white);
  padding: 28px 24px;
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  transition: background 0.15s;
}
.app-card:hover { background: var(--bg); }
.app-card:nth-child(3n) { border-right: none; }
.app-card:nth-child(4),
.app-card:nth-child(5),
.app-card:nth-child(6) { border-bottom: none; }
.app-icon {
  width: 40px;
  height: 40px;
  background: var(--accent-light);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
}
.app-icon i { color: var(--accent); font-size: 17px; }
.app-card h3 { font-size: 14px; font-weight: 700; margin-bottom: 8px; color: var(--ink); }
.app-card p { font-size: 13px; color: var(--muted); line-height: 1.6; }

/* CERTIFICATIONS */
.certs-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.cert-card {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 24px 20px;
  background: var(--white);
  transition: border-color 0.2s;
}
.cert-card:hover { border-color: var(--accent); }
.cert-icon-wrap {
  width: 44px;
  height: 44px;
  background: var(--accent-light);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
}
.cert-icon-wrap i { color: var(--accent); font-size: 19px; }
.cert-card h3 { font-size: 14px; font-weight: 700; margin-bottom: 6px; }
.cert-card p { font-size: 13px; color: var(--muted); line-height: 1.6; }

/* CTA */
.cta-section {
  background: var(--bg);
  border-top: 1px solid var(--border);
  text-align: center;
  padding: 80px 24px;
}
.cta-section h2 {
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
  color: var(--ink);
  line-height: 1.15;
}
.cta-section h2 span { color: var(--accent); font-weight: 300; }
.cta-section p { font-size: 15px; color: var(--muted); max-width: 440px; margin: 0 auto 28px; }
.cta-btns { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

/* FOOTER */
footer {
  background: #1c1f24;
  color: #9ca3af;
  padding: 48px 0 24px;
}
.footer-top {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 40px;
}
.footer-logo { font-size: 20px; font-weight: 800; color: var(--white); letter-spacing: -0.02em; margin-bottom: 12px; }
.footer-logo span { color: #60a5fa; font-weight: 400; }
.footer-about { font-size: 13px; line-height: 1.7; max-width: 240px; }
.footer-col h4 { font-size: 12px; font-weight: 700; color: var(--white); margin-bottom: 14px; letter-spacing: 0.05em; text-transform: uppercase; }
.footer-col ul { display: flex; flex-direction: column; gap: 9px; }
.footer-col ul a { font-size: 13px; color: #6b7280; transition: color 0.2s; }
.footer-col ul a:hover { color: var(--white); }
.footer-bottom {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px 24px 0;
  border-top: 1px solid #2d3748;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  color: #4b5563;
  flex-wrap: wrap;
  gap: 8px;
}

/* BREADCRUMB */
.breadcrumb-bar { border-bottom: 1px solid var(--border); background: var(--white); }
.breadcrumb {
  padding: 12px 24px;
  max-width: 1200px;
  margin: 0 auto;
  font-size: 13px;
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}
.breadcrumb a { color: var(--accent); }
.breadcrumb a:hover { text-decoration: underline; }
.breadcrumb i { font-size: 10px; color: var(--border); }

/* CATALOG PAGE */
.catalog-layout {
  max-width: 1200px;
  margin: 0 auto;
  padding: 28px 24px 64px;
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 32px;
  align-items: start;
}
.sidebar { position: sticky; top: 110px; }
.sidebar-title { font-size: 11px; font-weight: 700; color: var(--muted); text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 14px; }
.filter-group { margin-bottom: 20px; border-bottom: 1px solid var(--border2); padding-bottom: 20px; }
.filter-group:last-child { border-bottom: none; }
.filter-group-title {
  font-size: 13px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 10px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
}
.filter-group-title i { font-size: 11px; color: var(--muted); }
.filter-option { display: flex; align-items: center; gap: 8px; margin-bottom: 7px; }
.filter-option label { font-size: 13px; color: var(--ink2); cursor: pointer; flex: 1; }
.filter-option input[type="checkbox"] { accent-color: var(--accent); width: 14px; height: 14px; flex-shrink: 0; }
.filter-count { font-size: 11px; color: var(--muted); }
.search-filter {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 5px;
  padding: 7px 10px;
  font-size: 13px;
  font-family: var(--font);
  outline: none;
  margin-bottom: 10px;
  color: var(--ink);
}
.search-filter:focus { border-color: var(--accent); }
.applied-filters { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 16px; }
.filter-tag {
  background: var(--accent-light);
  color: var(--accent);
  font-size: 12px;
  padding: 4px 10px;
  border-radius: 4px;
  display: flex;
  align-items: center;
  gap: 5px;
}
.filter-tag i { cursor: pointer; font-size: 11px; }

.catalog-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
  gap: 10px;
}
.catalog-count { font-size: 13px; color: var(--muted); }
.catalog-count strong { color: var(--ink); }
.catalog-sort { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--muted); }
.catalog-sort select { border: 1px solid var(--border); padding: 5px 8px; border-radius: 5px; font-size: 13px; font-family: var(--font); color: var(--ink); outline: none; }

.product-list { display: flex; flex-direction: column; gap: 12px; }
.product-row {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 20px;
  display: grid;
  grid-template-columns: 90px 1fr auto;
  gap: 20px;
  align-items: center;
  background: var(--white);
  transition: border-color 0.15s, box-shadow 0.15s;
}
.product-row:hover { border-color: var(--accent); box-shadow: 0 2px 10px rgba(0,0,0,0.07); }
.pr-img {
  width: 90px;
  height: 90px;
  background: var(--bg);
  border-radius: 6px;
  border: 1px solid var(--border2);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.pr-img svg { width: 60px; height: 60px; opacity: 0.25; }
.pr-ref { font-size: 11px; color: var(--muted); font-family: monospace; margin-bottom: 3px; }
.pr-name { font-size: 16px; font-weight: 700; color: var(--ink); margin-bottom: 3px; }
.pr-name a:hover { color: var(--accent); }
.pr-synonym { font-size: 12px; color: var(--muted); margin-bottom: 10px; }
.pr-tags { display: flex; gap: 6px; flex-wrap: wrap; }
.pr-tag {
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 3px;
  background: var(--bg);
  color: var(--ink2);
  border: 1px solid var(--border);
}
.pr-tag.blue { background: var(--accent-light); color: var(--accent); border-color: transparent; }
.pr-tag.green { background: #dcfce7; color: var(--green); border-color: transparent; }
.pr-right { text-align: right; flex-shrink: 0; min-width: 110px; }
.pr-cas { font-size: 11px; color: var(--muted); font-family: monospace; margin-bottom: 6px; }
.pr-stock { font-size: 12px; font-weight: 700; margin-bottom: 12px; display: flex; align-items: center; gap: 4px; justify-content: flex-end; }
.pr-stock.in i { color: var(--green); }
.pr-stock.in { color: var(--green); }
.pr-stock.out i { color: var(--red); }
.pr-stock.out { color: var(--red); }

/* PRODUCT DETAIL */
.product-detail {
  max-width: 1200px;
  margin: 0 auto;
  padding: 28px 24px 64px;
  display: grid;
  grid-template-columns: 360px 1fr 240px;
  gap: 36px;
  align-items: start;
}
.pd-left { position: sticky; top: 110px; }
.pd-main-img {
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
  height: 260px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 10px;
}
.pd-main-img svg { width: 160px; height: 160px; opacity: 0.3; }
.pd-thumbs { display: flex; gap: 6px; margin-bottom: 20px; }
.pd-thumb {
  width: 56px;
  height: 56px;
  border: 1.5px solid var(--border);
  border-radius: 6px;
  background: var(--bg);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  color: var(--muted);
  font-weight: 600;
}
.pd-thumb.active { border-color: var(--accent); color: var(--accent); }
.pd-key-docs { margin-bottom: 20px; }
.pd-key-docs-title { font-size: 11px; font-weight: 700; color: var(--muted); text-transform: uppercase; letter-spacing: 0.07em; margin-bottom: 10px; }
.pd-doc-tags { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 8px; }
.pd-doc-tag {
  border: 1px solid var(--accent);
  color: var(--accent);
  font-size: 12px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 4px;
  cursor: pointer;
}
.pd-doc-tag:hover { background: var(--accent-light); }
.pd-view-all { font-size: 12px; color: var(--accent); font-weight: 600; }
.pd-skip { }
.pd-skip-title { font-size: 11px; font-weight: 700; color: var(--muted); text-transform: uppercase; letter-spacing: 0.07em; margin-bottom: 10px; }
.pd-skip ul { display: flex; flex-direction: column; gap: 7px; }
.pd-skip ul a { font-size: 13px; color: var(--accent); }
.pd-skip ul a:hover { text-decoration: underline; }

.pd-ref { font-size: 12px; color: var(--muted); font-family: monospace; margin-bottom: 3px; display: flex; align-items: center; gap: 10px; }
.pd-brand { font-size: 12px; font-weight: 700; color: var(--accent); }
.pd-name { font-size: clamp(24px, 3vw, 36px); font-weight: 800; letter-spacing: -0.02em; line-height: 1.1; margin-bottom: 6px; }
.pd-assay { font-size: 14px; color: var(--muted); margin-bottom: 12px; }
.pd-synonyms { font-size: 13px; color: var(--muted); margin-bottom: 18px; line-height: 1.6; }
.pd-synonyms strong { color: var(--ink2); }
.pd-sign-in {
  background: var(--accent-light);
  border: 1px solid #bfdbfe;
  border-radius: 6px;
  padding: 12px 16px;
  margin-bottom: 20px;
  font-size: 13px;
  color: var(--accent);
}
.pd-sign-in a { font-weight: 700; color: var(--accent); }
.pd-pricing-box {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 20px;
  margin-bottom: 16px;
}
.pd-pricing-label { font-size: 11px; font-weight: 700; color: var(--muted); text-transform: uppercase; letter-spacing: 0.07em; margin-bottom: 14px; }
.pd-price-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 0;
  border-bottom: 1px solid var(--border2);
  cursor: pointer;
  gap: 10px;
}
.pd-price-row:last-child { border-bottom: none; }
.pd-price-row input[type="radio"] { accent-color: var(--accent); flex-shrink: 0; }
.pd-price-size { font-size: 13px; font-weight: 500; flex: 1; }
.pd-price-val { font-size: 14px; font-weight: 700; color: var(--accent); font-family: monospace; }
.pd-add-btn {
  width: 100%;
  background: var(--accent);
  color: #fff;
  border: none;
  padding: 12px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 8px;
  cursor: pointer;
  transition: background 0.2s;
}
.pd-add-btn:hover { background: var(--accent-hover); }
.pd-quote-btn {
  width: 100%;
  background: var(--white);
  color: var(--ink);
  border: 1.5px solid var(--border);
  padding: 10px;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
}
.pd-quote-btn:hover { border-color: var(--accent); color: var(--accent); }

.pd-about { margin: 28px 0; }
.pd-about h2 { font-size: 18px; font-weight: 700; margin-bottom: 14px; }
.pd-table { width: 100%; border-collapse: collapse; border: 1px solid var(--border); border-radius: 8px; overflow: hidden; }
.pd-table tr:nth-child(odd) { background: var(--bg); }
.pd-table td { padding: 10px 14px; font-size: 13px; border-bottom: 1px solid var(--border2); }
.pd-table tr:last-child td { border-bottom: none; }
.pd-table td:first-child { font-weight: 500; color: var(--muted); width: 190px; }
.pd-table a { color: var(--accent); }

.pd-right {}
.pd-aside-box {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px;
  background: var(--white);
  margin-bottom: 12px;
}
.pd-aside-title { font-size: 13px; font-weight: 700; margin-bottom: 8px; color: var(--ink); display: flex; align-items: center; gap: 7px; }
.pd-aside-title i { color: var(--accent); font-size: 14px; }
.pd-aside-text { font-size: 12.5px; color: var(--muted); line-height: 1.6; margin-bottom: 10px; }
.pd-aside-link { font-size: 13px; color: var(--accent); font-weight: 600; display: block; margin-top: 4px; }
.pd-aside-link:hover { text-decoration: underline; }

.recommended { padding: 48px 0; border-top: 1px solid var(--border); background: var(--bg); }
.recs-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-top: 24px; }
.rec-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.rec-card:hover { border-color: var(--accent); box-shadow: 0 2px 8px rgba(0,0,0,0.07); }
.rec-img { height: 90px; background: var(--bg); display: flex; align-items: center; justify-content: center; border-bottom: 1px solid var(--border2); }
.rec-img svg { width: 55px; height: 55px; opacity: 0.22; }
.rec-body { padding: 12px; }
.rec-brand { font-size: 10px; font-weight: 700; color: var(--muted); text-transform: uppercase; margin-bottom: 2px; }
.rec-ref { font-size: 12px; color: var(--accent); font-weight: 700; margin-bottom: 3px; }
.rec-name { font-size: 13px; font-weight: 600; color: var(--ink); }
.rec-btn {
  width: 100%;
  margin-top: 8px;
  border: 1px solid var(--border);
  background: var(--white);
  padding: 6px;
  border-radius: 5px;
  font-size: 12px;
  font-weight: 500;
  color: var(--ink2);
  cursor: pointer;
}
.rec-btn:hover { border-color: var(--accent); color: var(--accent); }

/* CONTACT */
.contact-layout {
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 24px 64px;
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 48px;
  align-items: start;
}
.contact-title { font-size: clamp(26px, 3.5vw, 40px); font-weight: 800; letter-spacing: -0.02em; line-height: 1.1; margin-bottom: 6px; }
.contact-title span { color: var(--accent); font-weight: 300; }
.contact-sub { font-size: 14px; color: var(--muted); margin-bottom: 28px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { display: flex; flex-direction: column; gap: 5px; }
.form-group.full { grid-column: 1 / -1; }
.form-group label { font-size: 13px; font-weight: 600; color: var(--ink2); }
.form-group input,
.form-group select,
.form-group textarea {
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 10px 12px;
  font-size: 14px;
  font-family: var(--font);
  color: var(--ink);
  outline: none;
  background: var(--white);
  transition: border-color 0.15s;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus { border-color: var(--accent); }
.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--muted); }
.form-group textarea { resize: vertical; }
.form-submit { margin-top: 20px; }
.form-note { font-size: 12px; color: var(--muted); margin-top: 10px; }
.check-row { display: flex; flex-direction: column; gap: 9px; }
.check-label { display: flex; align-items: center; gap: 9px; font-size: 13px; color: var(--ink2); cursor: pointer; }
.check-label input { accent-color: var(--accent); width: 14px; height: 14px; flex-shrink: 0; }
.ca-block { border: 1px solid var(--border); border-radius: 8px; overflow: hidden; margin-bottom: 14px; }
.ca-block-head { background: var(--bg); padding: 12px 16px; font-size: 13px; font-weight: 700; border-bottom: 1px solid var(--border); display: flex; align-items: center; gap: 7px; }
.ca-block-head i { color: var(--accent); font-size: 13px; }
.ca-block-body { padding: 16px; display: flex; flex-direction: column; gap: 12px; }
.ca-item-label { font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.07em; color: var(--muted); margin-bottom: 2px; }
.ca-item-val { font-size: 13px; color: var(--ink2); }

/* ── RESPONSIVE ── */
@media (max-width: 1024px) {
  .compounds-grid { grid-template-columns: repeat(2, 1fr); }
  .certs-grid { grid-template-columns: repeat(2, 1fr); }
  .hero-inner { grid-template-columns: 1fr; padding-bottom: 40px; }
  .hero-visual { display: none; }
  .featured-product { grid-template-columns: 1fr; }
  .fp-right { display: none; }
  .fp-specs { grid-template-columns: repeat(2, 1fr); }
  .product-detail { grid-template-columns: 300px 1fr; }
  .pd-right { display: none; }
  .footer-top { grid-template-columns: 1fr 1fr; gap: 28px; }
  .recs-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .topbar { font-size: 11px; padding: 6px 16px; }
  .header-top { padding: 12px 16px; gap: 12px; }
  .header-actions { display: none; }
  .hamburger { display: block; }
  .header-nav { display: none; }
  .search-wrap { max-width: 100%; }
  .search-wrap select { display: none; }

  .hero-inner { padding: 40px 24px 40px; }
  .hero h1 { font-size: 36px; }
  .hero-ctas { flex-direction: column; }
  .hero-ctas .btn-primary,
  .hero-ctas .btn-secondary { width: 100%; justify-content: center; }
  .hero-stats { gap: 20px; }

  .trust-bar-inner { justify-content: flex-start; gap: 12px; }
  .trust-divider { display: none; }
  .trust-item { font-size: 12px; }

  .section { padding: 40px 0; }
  .compounds-grid { grid-template-columns: 1fr 1fr; gap: 10px; }
  .apps-grid { grid-template-columns: 1fr; }
  .app-card { border-right: none !important; }
  .app-card:nth-child(n) { border-bottom: 1px solid var(--border); }
  .app-card:last-child { border-bottom: none; }
  .certs-grid { grid-template-columns: 1fr 1fr; gap: 10px; }
  .featured-wrap { padding: 0 16px 40px; }
  .fp-left { padding: 28px; }
  .fp-specs { grid-template-columns: 1fr 1fr; }

  .catalog-layout { grid-template-columns: 1fr; padding: 20px 16px 48px; }
  .sidebar { display: none; }
  .product-row { grid-template-columns: 72px 1fr; gap: 14px; }
  .pr-right { display: none; }

  .product-detail { grid-template-columns: 1fr; padding: 20px 16px 48px; gap: 24px; }
  .pd-left { position: static; }
  .pd-main-img { height: 200px; }

  .contact-layout { grid-template-columns: 1fr; padding: 24px 16px 48px; }
  .form-grid { grid-template-columns: 1fr; }
  .form-group.full { grid-column: 1; }

  .footer-top { grid-template-columns: 1fr; gap: 28px; padding: 0 16px; }
  .footer-bottom { flex-direction: column; text-align: center; padding: 20px 16px 0; }

  .recs-grid { grid-template-columns: 1fr 1fr; }

  .cta-section { padding: 48px 16px; }
  .cta-btns { flex-direction: column; align-items: center; }
  .cta-btns .btn-primary,
  .cta-btns .btn-secondary { width: 100%; max-width: 320px; justify-content: center; }
}

@media (max-width: 480px) {
  .compounds-grid { grid-template-columns: 1fr; }
  .certs-grid { grid-template-columns: 1fr; }
  .recs-grid { grid-template-columns: 1fr; }
  .hero-stats { flex-direction: column; gap: 14px; }
  .trust-bar-inner { flex-direction: column; align-items: flex-start; gap: 10px; }
  .fp-specs { grid-template-columns: 1fr 1fr; }
  .product-row { grid-template-columns: 1fr; }
  .pr-img { display: none; }
}