@import url('https://fonts.googleapis.com/css2?family=DM+Serif+Display:ital@0;1&family=DM+Mono:wght@300;400;500&family=Instrument+Sans:ital,wght@0,400;0,500;1,400&display=swap');

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

:root {
  /* Navy clinical palette */
  --navy-900: #0a1628;
  --navy-800: #0f2040;
  --navy-700: #152a52;
  --navy-600: #1e3a6e;
  --navy-500: #2952a3;
  --navy-400: #4470c4;
  --navy-300: #7299d6;
  --navy-200: #afc3e8;
  --navy-100: #dce7f5;
  --navy-50:  #f0f5fc;

  --ink:      var(--navy-900);
  --ink-mid:  #2c3e5c;
  --ink-muted:#5a7090;
  --ink-faint:#b8c8dc;

  --paper:      #f8f9fc;
  --paper-warm: #eef2f8;
  --paper-mid:  #dde5f0;

  --accent:       var(--navy-600);
  --accent-mid:   var(--navy-500);
  --accent-light: var(--navy-50);

  --rule: rgba(10,22,40,0.08);
  --rule-mid: rgba(10,22,40,0.14);

  --serif: 'DM Serif Display', Georgia, serif;
  --sans:  'Instrument Sans', system-ui, sans-serif;
  --mono:  'DM Mono', monospace;
  --max:   1200px;
  --col:   680px;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--sans);
  background: var(--paper);
  color: var(--ink);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ── NAV ── */
.site-nav {
  position: sticky; top: 0; z-index: 100;
  background: var(--navy-900);
  border-bottom: 1px solid rgba(255,255,255,0.07);
  padding: 0 40px;
  display: flex; align-items: center; justify-content: space-between;
  height: 62px;
}

.nav-logo {
  display: flex; align-items: center; gap: 12px;
  text-decoration: none;
  flex-shrink: 0;
}

.nav-logo img {
  height: 22px;
  width: auto;
  display: block;
  color: white;
}

.nav-logo-sub {
  font-family: var(--mono);
  font-size: 10px; letter-spacing: 0.2em; text-transform: uppercase;
  color: rgba(255,255,255,0.35);
  border-left: 1px solid rgba(255,255,255,0.15);
  padding-left: 12px;
  line-height: 1;
}

.nav-links {
  display: flex; align-items: center; gap: 32px;
  list-style: none;
}

.nav-links a {
  font-size: 13px; font-weight: 400;
  color: rgba(255,255,255,0.5);
  text-decoration: none;
  letter-spacing: 0.02em;
  transition: color 0.15s;
}
.nav-links a:hover { color: rgba(255,255,255,0.9); }
.nav-links a.active { color: white; }

/* ── TYPOGRAPHY ── */
h1, h2, h3 { font-family: var(--serif); font-weight: 400; line-height: 1.15; color: var(--ink); }
h1 { font-size: clamp(34px, 5vw, 56px); }
h2 { font-size: clamp(24px, 3vw, 36px); }
h3 { font-size: clamp(17px, 2vw, 21px); }
p  { color: var(--ink-mid); line-height: 1.75; }

.eyebrow {
  font-family: var(--mono);
  font-size: 11px; letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--navy-400);
  display: block; margin-bottom: 16px;
}

.section-rule {
  font-family: var(--mono);
  font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--ink-muted);
  display: flex; align-items: center; gap: 16px;
  margin-bottom: 48px;
}
.section-rule::after { content: ''; flex: 1; height: 1px; background: var(--rule); }

/* ── LAYOUT ── */
.container { max-width: var(--max); margin: 0 auto; padding: 0 40px; }
.col { max-width: var(--col); }

section { padding: 80px 0; border-bottom: 1px solid var(--rule); }
section:last-of-type { border-bottom: none; }

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: start; }

/* ── STAT ROW ── */
.stat-row {
  display: flex; gap: 48px; flex-wrap: wrap;
  padding: 32px 0;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  margin: 40px 0;
}
.stat-num  { font-family: var(--serif); font-size: 36px; color: var(--navy-600); }
.stat-label { font-family: var(--mono); font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-muted); margin-top: 4px; }

/* ── CARDS ── */
.card {
  background: var(--paper);
  border: 1px solid var(--rule);
  padding: 28px 24px;
}
.card-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  border: 1px solid var(--rule);
  overflow: hidden; border-radius: 2px;
}
.card-grid .card {
  border: none;
  border-right: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  transition: background 0.15s;
}
.card-grid .card:hover { background: var(--paper-warm); }
.card-grid .card:nth-child(3n) { border-right: none; }
.card-grid .card:nth-last-child(-n+3) { border-bottom: none; }

.card-num {
  font-family: var(--mono);
  font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--navy-400); margin-bottom: 12px;
}
.card h3 { font-size: 16px; margin-bottom: 10px; }
.card p  { font-size: 14px; line-height: 1.65; }

.tag {
  display: inline-block;
  font-family: var(--mono); font-size: 11px;
  padding: 3px 8px; margin-top: 14px;
  background: var(--navy-50);
  border: 1px solid var(--navy-200);
  color: var(--navy-600);
  letter-spacing: 0.06em;
}

/* ── TIMELINE ── */
.timeline { display: flex; flex-direction: column; }
.tl-item { display: grid; grid-template-columns: 80px 1fr; gap: 24px; padding-bottom: 36px; }
.tl-item:last-child { padding-bottom: 0; }
.tl-year { font-family: var(--mono); font-size: 12px; color: var(--ink-muted); padding-top: 2px; text-align: right; }
.tl-content { padding-left: 20px; border-left: 1px solid var(--rule-mid); position: relative; }
.tl-content::before {
  content: '';
  position: absolute; left: -5px; top: 6px;
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--navy-600);
  border: 2px solid var(--paper);
  box-shadow: 0 0 0 1px var(--navy-600);
}
.tl-content h4  { font-family: var(--sans); font-size: 14px; font-weight: 500; margin-bottom: 6px; color: var(--ink); }
.tl-content p   { font-size: 13px; }

/* ── CERT BADGES ── */
.cert-grid { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 24px; }
.cert-badge {
  display: flex; align-items: center; gap: 8px;
  padding: 8px 14px;
  background: var(--paper);
  border: 1px solid var(--rule);
  font-family: var(--mono); font-size: 12px;
  letter-spacing: 0.05em; color: var(--ink-mid);
}
.cert-badge svg { flex-shrink: 0; color: var(--navy-400); }

/* ── BRAND TILES ── */
.brand-tiles {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1px; background: var(--rule); border: 1px solid var(--rule); margin-top: 40px;
}
.brand-tile {
  background: var(--paper); padding: 24px 20px;
  text-decoration: none; color: inherit; transition: background 0.15s;
}
.brand-tile:hover { background: var(--navy-50); }
.brand-tile-type  { font-family: var(--mono); font-size: 10px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--navy-400); margin-bottom: 8px; }
.brand-tile-name  { font-family: var(--serif); font-size: 18px; color: var(--ink); margin-bottom: 6px; }
.brand-tile-desc  { font-size: 12px; color: var(--ink-muted); line-height: 1.5; }

/* ── HERO ── */
.hero { padding: 96px 0 80px; border-bottom: 1px solid var(--rule); }
.hero h1 { max-width: 720px; margin-bottom: 24px; }
.hero h1 em { font-style: italic; color: var(--navy-500); }
.hero-lead { font-size: 17px; max-width: 540px; color: var(--ink-mid); margin-bottom: 40px; line-height: 1.7; }

/* ── HERO BAND ── */
.hero-band {
  background: var(--navy-900);
  padding: 48px 0;
  border-bottom: none;
}
.hero-band h1 { color: white; }
.hero-band h1 em { color: var(--navy-300); }
.hero-band .hero-lead { color: rgba(255,255,255,0.55); }
.hero-band .eyebrow { color: var(--navy-300); }
.hero-band .stat-row { border-color: rgba(255,255,255,0.1); }
.hero-band .stat-num  { color: white; }
.hero-band .stat-label { color: rgba(255,255,255,0.4); }

/* ── CTA LINK ── */
.text-link {
  font-family: var(--mono); font-size: 12px; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--navy-600); text-decoration: none;
  border-bottom: 1px solid var(--navy-300);
  padding-bottom: 1px;
  display: inline-flex; align-items: center; gap: 6px;
  transition: color 0.15s, border-color 0.15s;
}
.text-link:hover { color: var(--navy-800); border-color: var(--navy-600); }
.text-link-light { color: var(--navy-200); border-color: rgba(171,195,232,0.4); }
.text-link-light:hover { color: white; border-color: white; }

/* ── PAGE HEADER ── */
.page-header {
  background: var(--navy-900);
  padding: 64px 0 56px;
  border-bottom: none;
}
.page-header h1 { color: white; max-width: 640px; margin-bottom: 16px; }
.page-header p  { max-width: 520px; font-size: 16px; color: rgba(255,255,255,0.5); }
.page-header .eyebrow { color: var(--navy-300); }

/* ── FOUNDER PAGE ── */
.founder-grid { display: grid; grid-template-columns: 300px 1fr; gap: 80px; align-items: start; }
.founder-img {
  aspect-ratio: 3/4; background: var(--paper-warm);
  border: 1px solid var(--rule);
  display: flex; align-items: center; justify-content: center;
  color: var(--ink-muted); font-family: var(--mono); font-size: 12px;
  letter-spacing: 0.08em; text-align: center; padding: 20px;
  overflow: hidden;
}
.founder-img img { width: 100%; height: 100%; object-fit: cover; display: block; }

.credential-list { list-style: none; margin-top: 24px; }
.credential-list li {
  display: flex; align-items: flex-start; gap: 12px;
  padding: 12px 0; border-bottom: 1px solid var(--rule);
  font-size: 14px;
}
.credential-list li:first-child { border-top: 1px solid var(--rule); }
.cred-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--navy-500); flex-shrink: 0; margin-top: 6px; }

/* ── FORMULATION PAGE ── */
.process-step {
  display: grid; grid-template-columns: 60px 1fr;
  gap: 32px; padding: 48px 0; border-bottom: 1px solid var(--rule); align-items: start;
}
.process-step:last-child { border-bottom: none; }
.step-num { font-family: var(--serif); font-size: 48px; color: var(--navy-200); line-height: 1; padding-top: 4px; }
.step-body h3 { font-size: 22px; margin-bottom: 14px; }
.step-body p  { font-size: 15px; color: var(--ink-mid); margin-bottom: 14px; }
.step-body p:last-child { margin-bottom: 0; }
.step-body .step-detail {
  background: var(--navy-50);
  border-left: 3px solid var(--navy-200);
  padding: 16px 20px; margin-top: 20px;
  font-size: 14px; color: var(--ink-mid); line-height: 1.7;
}
.step-body .step-detail strong { color: var(--navy-700); font-weight: 500; }

/* ── FORMULA TABLE ── */
.formula-table { width: 100%; border-collapse: collapse; margin-top: 24px; font-size: 14px; }
.formula-table th {
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--ink-muted); text-align: left; padding: 10px 12px;
  border-bottom: 1px solid var(--rule);
}
.formula-table td { padding: 12px; border-bottom: 1px solid var(--rule); vertical-align: top; }
.formula-table tr:last-child td { border-bottom: none; }
.formula-table tr:hover td { background: var(--navy-50); }
.formula-table td:first-child { font-family: var(--mono); font-size: 12px; color: var(--navy-700); }
.formula-table td:nth-child(2) { color: var(--ink); }
.formula-table td:nth-child(3) { font-size: 13px; color: var(--ink-mid); }

/* ── CREDENTIALS ── */
.doc-row {
  display: flex; justify-content: space-between; align-items: baseline;
  padding: 14px 0; border-bottom: 1px solid var(--rule); gap: 16px; flex-wrap: wrap;
}
.doc-row:first-child { border-top: 1px solid var(--rule); }
.doc-name { font-size: 14px; font-weight: 500; color: var(--ink); }
.doc-meta { font-family: var(--mono); font-size: 11px; color: var(--ink-muted); letter-spacing: 0.06em; }
.doc-status {
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.08em;
  padding: 3px 8px; border: 1px solid var(--navy-200);
  color: var(--navy-600); white-space: nowrap; background: var(--navy-50);
}
.highlight-box {
  background: var(--navy-900); color: var(--paper);
  padding: 40px; margin: 48px 0 0;
}
.highlight-box h3 { font-family: var(--serif); font-size: 22px; color: white; margin-bottom: 12px; }
.highlight-box p  { font-size: 14px; color: rgba(240,245,252,0.55); line-height: 1.7; }

/* ── SCIENCE PAGE EXTRAS ── */
.ingredient-header {
  display: grid; grid-template-columns: 40px 1fr auto;
  align-items: baseline; gap: 16px; margin-bottom: 32px;
}
.ingredient-num { font-family: var(--mono); font-size: 11px; color: var(--navy-400); letter-spacing: 0.12em; }
.ingredient-header h2 { font-size: clamp(22px, 3vw, 32px); }
.ingredient-iupac { font-family: var(--mono); font-size: 11px; color: var(--ink-muted); letter-spacing: 0.06em; white-space: nowrap; }

.mechanism-box {
  background: var(--navy-50);
  border: 1px solid var(--navy-100);
  padding: 24px 28px; margin: 28px 0;
}
.mechanism-box h4 { font-family: var(--mono); font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--navy-400); margin-bottom: 12px; }
.mechanism-box p  { font-size: 14px; color: var(--ink-mid); line-height: 1.7; }
.ingredient-meta  { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 20px; }

/* ── PULLQUOTE ── */
.pullquote {
  padding: 28px 24px;
  background: var(--navy-50);
  border-left: 3px solid var(--navy-300);
  margin-top: 40px;
}
.pullquote p { font-family: var(--serif); font-size: 20px; color: var(--ink); font-style: italic; line-height: 1.5; margin-bottom: 0; }
.pullquote cite { font-size: 12px; font-family: var(--mono); color: var(--ink-muted); margin-top: 12px; display: block; letter-spacing: 0.06em; font-style: normal; }

/* ── FOOTER ── */
.site-footer {
  background: var(--navy-900);
  color: var(--paper); padding: 56px 40px 40px;
}
.footer-inner {
  max-width: var(--max); margin: 0 auto;
  display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 48px;
  padding-bottom: 40px; border-bottom: 1px solid rgba(255,255,255,0.08);
}
.footer-logo { height: 20px; width: auto; margin-bottom: 16px; }
.footer-tagline { font-size: 13px; color: rgba(240,245,252,0.4); line-height: 1.7; max-width: 240px; }
.footer-col-label { font-family: var(--mono); font-size: 10px; letter-spacing: 0.14em; text-transform: uppercase; color: rgba(240,245,252,0.3); margin-bottom: 16px; }
.footer-links-list { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.footer-links-list a { font-size: 13px; color: rgba(240,245,252,0.55); text-decoration: none; transition: color 0.15s; }
.footer-links-list a:hover { color: white; }
.footer-bottom {
  max-width: var(--max); margin: 0 auto; padding-top: 24px;
  display: flex; justify-content: space-between; align-items: center;
}
.footer-bottom p { font-family: var(--mono); font-size: 11px; letter-spacing: 0.08em; color: rgba(240,245,252,0.25); }

/* ── SECTION BANDS ── */
.band-navy { background: var(--navy-50); }

/* ── ANIMATIONS ── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}
.fade-up   { animation: fadeUp 0.6s ease both; }
.fade-up-1 { animation-delay: 0.1s; }
.fade-up-2 { animation-delay: 0.2s; }
.fade-up-3 { animation-delay: 0.3s; }
.fade-up-4 { animation-delay: 0.4s; }

/* ── RESPONSIVE ── */
@media (max-width: 900px) {
  .site-nav { padding: 0 20px; }
  .container { padding: 0 20px; }
  .grid-2 { grid-template-columns: 1fr; gap: 40px; }
  .founder-grid { grid-template-columns: 1fr; }
  .founder-img { aspect-ratio: 4/3; max-width: 320px; }
  .card-grid { grid-template-columns: 1fr 1fr; }
  .card-grid .card:nth-child(3n)  { border-right: 1px solid var(--rule); }
  .card-grid .card:nth-child(2n)  { border-right: none; }
  .footer-inner { grid-template-columns: 1fr; gap: 32px; }
  .nav-links { gap: 20px; }
  .ingredient-header { grid-template-columns: 32px 1fr; }
  .ingredient-iupac { display: none; }
}

@media (max-width: 600px) {
  h1 { font-size: 30px; }
  .nav-links { display: none; }
  .card-grid { grid-template-columns: 1fr; }
  .stat-row { gap: 28px; }
  .process-step { grid-template-columns: 36px 1fr; gap: 14px; }
  .step-num { font-size: 32px; }
  .hero-band, .page-header { padding: 48px 0 40px; }
}