/* ─── Design Tokens ─── */
:root {
  --bg: #F8F7F4;
  --bg-alt: #FFFFFF;
  --fg: #1C1C1A;
  --fg-muted: #6B6B63;
  --accent: #1A6B5A;
  --accent-light: #E8F2EE;
  --accent-mid: #3D9A84;
  --sage: #E4EDE9;
  --border: #E0DDD5;
  --strong: #1A6B5A;
  --moderate: #B07D2C;
  --font-serif: 'DM Serif Display', Georgia, serif;
  --font-sans: 'DM Sans', system-ui, sans-serif;
}

/* ─── Base ─── */
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3 { font-family: var(--font-serif); font-weight: 400; line-height: 1.15; }
a { color: inherit; text-decoration: none; }

/* ─── Header ─── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(248, 247, 244, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  color: var(--fg);
  letter-spacing: -0.01em;
}
.logo-suffix { color: var(--accent); }
.site-header nav { display: flex; gap: 2rem; align-items: center; }
.site-header nav a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--fg-muted);
  transition: color 0.2s;
}
.site-header nav a:hover { color: var(--fg); }

/* ─── Hero ─── */
.hero {
  max-width: 1200px;
  margin: 0 auto;
  padding: 5rem 2rem 3rem;
  position: relative;
}
.hero-inner { max-width: 680px; }
.hero-label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.5rem;
}
.hero-headline {
  font-size: clamp(3rem, 7vw, 5.5rem);
  color: var(--fg);
  margin-bottom: 1.5rem;
  letter-spacing: -0.02em;
  line-height: 1.05;
}
.hero-headline em {
  font-style: italic;
  color: var(--accent);
}
.hero-sub {
  font-size: 1.125rem;
  color: var(--fg-muted);
  line-height: 1.7;
  max-width: 540px;
  margin-bottom: 2.5rem;
  font-weight: 300;
}
.hero-cta {
  display: inline-block;
  background: var(--fg);
  color: var(--bg);
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 500;
  padding: 0.8rem 1.75rem;
  border-radius: 6px;
  transition: background 0.2s;
  letter-spacing: 0.01em;
}
.hero-cta:hover { background: var(--accent); }
.hero-stats {
  display: flex;
  align-items: center;
  gap: 0;
  margin-top: 4rem;
  padding-top: 2.5rem;
  border-top: 1px solid var(--border);
  flex-wrap: wrap;
  gap: 0;
}
.stat {
  display: flex;
  flex-direction: column;
  padding: 0 2.5rem 0 0;
}
.stat:first-child { padding-left: 0; }
.stat-number {
  font-family: var(--font-serif);
  font-size: 2rem;
  color: var(--fg);
  letter-spacing: -0.02em;
}
.stat-label {
  font-size: 0.75rem;
  color: var(--fg-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-top: 0.25rem;
}
.stat-divider {
  width: 1px;
  height: 40px;
  background: var(--border);
  margin: 0 2.5rem 0 0;
  align-self: center;
}
.hero-tagline {
  margin-top: 3rem;
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 1.1rem;
  color: var(--fg-muted);
}

/* ─── Manifesto ─── */
.manifesto {
  background: var(--fg);
  color: #F8F7F4;
  padding: 6rem 2rem;
}
.manifesto-inner { max-width: 1200px; margin: 0 auto; }
.manifesto-overline {
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-mid);
  margin-bottom: 1.5rem;
  font-weight: 600;
}
.manifesto-statement {
  font-size: clamp(1.75rem, 3.5vw, 2.75rem);
  color: #F8F7F4;
  max-width: 720px;
  line-height: 1.2;
  margin-bottom: 2.5rem;
}
.manifesto-body {
  max-width: 620px;
  display: grid;
  gap: 1.25rem;
}
.manifesto-body p {
  font-size: 1rem;
  line-height: 1.75;
  color: #A8A89E;
  font-weight: 300;
}

/* ─── Evidence Standard ─── */
.evidence-standard { padding: 5rem 2rem; }
.standard-inner { max-width: 1200px; margin: 0 auto; }
.standard-header { margin-bottom: 3rem; }
.standard-header h2 {
  font-size: 2.25rem;
  margin-bottom: 0.75rem;
  letter-spacing: -0.01em;
}
.standard-header h2 em { font-style: italic; color: var(--accent); }
.standard-header p { color: var(--fg-muted); font-size: 1rem; }
.standard-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; }
.standard-card {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 2.5rem;
  background: var(--bg-alt);
}
.standard-card.is-not { background: #F4F3EF; }
.card-tag {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.5rem;
}
.standard-card.is-not .card-tag { color: var(--fg-muted); }
.standard-card ul { list-style: none; display: flex; flex-direction: column; gap: 0.9rem; }
.standard-card ul li {
  font-size: 0.975rem;
  color: var(--fg);
  padding-left: 1.25rem;
  position: relative;
}
.standard-card ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
}
.standard-card.is-not ul li::before { background: var(--fg-muted); }

/* ─── Process ─── */
.process { padding: 5rem 2rem; background: var(--bg-alt); }
.process-inner { max-width: 1200px; margin: 0 auto; }
.process-header { margin-bottom: 4rem; }
.process-header h2 { font-size: 2.25rem; margin-bottom: 0.5rem; }
.process-header p { color: var(--fg-muted); }
.process-steps {
  display: flex;
  align-items: flex-start;
  gap: 2rem;
}
.step { flex: 1; }
.step-num {
  font-family: var(--font-serif);
  font-size: 2.5rem;
  color: var(--accent);
  opacity: 0.3;
  margin-bottom: 0.75rem;
  letter-spacing: -0.02em;
}
.step h3 { font-size: 1.25rem; margin-bottom: 0.5rem; }
.step p { font-size: 0.925rem; color: var(--fg-muted); line-height: 1.6; }
.step-arrow {
  padding-top: 2.5rem;
  color: var(--border);
  flex-shrink: 0;
}

/* ─── Ingredients ─── */
.ingredients { padding: 5rem 2rem; }
.ingredients-inner { max-width: 1200px; margin: 0 auto; }
.ingredients-header { margin-bottom: 3rem; }
.ingredients-header h2 { font-size: 2.25rem; margin-bottom: 0.5rem; }
.ingredients-header p { color: var(--fg-muted); margin-bottom: 1.25rem; }
.view-all {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--accent);
  border-bottom: 1px solid var(--accent);
  padding-bottom: 2px;
  transition: opacity 0.2s;
}
.view-all:hover { opacity: 0.7; }
.ingredient-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.ingredient-card {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 2rem;
  display: block;
  transition: border-color 0.2s, transform 0.2s;
}
.ingredient-card:hover {
  border-color: var(--accent);
  transform: translateY(-3px);
}
.card-category {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--fg-muted);
  margin-bottom: 0.5rem;
}
.ingredient-card h3 { font-size: 1.4rem; margin-bottom: 0.25rem; }
.card-aka { font-size: 0.8rem; color: var(--fg-muted); font-style: italic; margin-bottom: 1rem; }
.card-evidence {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  padding: 0.25rem 0.75rem;
  border-radius: 20px;
  margin-bottom: 1rem;
}
.card-evidence.strong { background: var(--accent-light); color: var(--accent); }
.card-evidence.moderate { background: #FDF4E3; color: var(--moderate); }
.card-desc { font-size: 0.875rem; color: var(--fg-muted); line-height: 1.6; margin-bottom: 1.25rem; }
.card-cta { font-size: 0.875rem; font-weight: 500; color: var(--accent); }

/* ─── Closing ─── */
.closing {
  background: var(--sage);
  padding: 7rem 2rem;
  text-align: center;
}
.closing-inner { max-width: 760px; margin: 0 auto; }
.closing h2 {
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  margin-bottom: 1.5rem;
  line-height: 1.2;
}
.closing h2 em { font-style: italic; color: var(--accent); }
.closing p { color: var(--fg-muted); font-size: 1.05rem; margin-bottom: 3rem; }
.closing-tagline {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
}
.tagline-mark {
  display: block;
  width: 24px;
  height: 1px;
  background: var(--fg-muted);
}
.closing-tagline p {
  font-family: var(--font-serif);
  font-style: italic;
  color: var(--fg-muted);
  font-size: 1rem;
  margin: 0;
}

/* ─── Footer ─── */
.site-footer {
  background: var(--fg);
  color: #A8A89E;
  padding: 3rem 2rem;
}
.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 3rem;
  align-items: start;
}
.footer-logo {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  color: #F8F7F4;
  margin-bottom: 0.5rem;
}
.footer-logo span { color: var(--accent-mid); }
.footer-brand p { font-size: 0.85rem; color: #6B6B63; }
.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.footer-links a { font-size: 0.875rem; color: #A8A89E; transition: color 0.2s; }
.footer-links a:hover { color: #F8F7F4; }
.footer-copy p { font-size: 0.75rem; color: #4A4A44; line-height: 1.6; }

/* ─── Responsive ─── */
@media (max-width: 768px) {
  .hero { padding: 3rem 1.5rem 2rem; }
  .hero-stats { gap: 1.5rem; flex-wrap: wrap; }
  .stat { padding: 0 1.5rem 0 0; }
  .stat-divider { margin: 0 1.5rem 0 0; }
  .stat-number { font-size: 1.5rem; }
  .standard-grid { grid-template-columns: 1fr; }
  .process-steps { flex-direction: column; }
  .step-arrow { display: none; }
  .ingredient-cards { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; gap: 2rem; }
  .site-header nav { gap: 1rem; }
}