:root {
  --bg: #f4efe6;
  --bg-2: #fdf9f3;
  --ink: #171717;
  --muted: #5a544c;
  --line: rgba(23, 23, 23, 0.12);
  --card: rgba(255, 252, 247, 0.82);
  --accent: #0f766e;
  --accent-2: #c2410c;
  --shadow: 0 24px 60px rgba(23, 23, 23, 0.08);
  --radius: 24px;
  --max: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Space Grotesk", "IBM Plex Sans", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(15,118,110,0.16), transparent 28%),
    radial-gradient(circle at top right, rgba(194,65,12,0.14), transparent 24%),
    linear-gradient(180deg, var(--bg), var(--bg-2));
}

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

.shell {
  width: min(calc(100% - 32px), var(--max));
  margin: 0 auto;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(14px);
  background: rgba(253,249,243,0.82);
  border-bottom: 1px solid var(--line);
}

.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 16px 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.brand-mark {
  width: 14px;
  height: 14px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 0 0 6px rgba(15,118,110,0.08);
}

.nav {
  display: flex;
  gap: 18px;
  color: var(--muted);
  font-size: 0.95rem;
}

.hero {
  padding: 72px 0 40px;
  display: grid;
  grid-template-columns: 1.3fr 0.9fr;
  gap: 28px;
  align-items: end;
}

.kicker, .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  font-size: 0.85rem;
  background: rgba(255,255,255,0.45);
}

.hero h1, .page-hero h1 {
  margin: 18px 0 18px;
  font-family: "Newsreader", Georgia, serif;
  font-size: clamp(3rem, 6vw, 5.5rem);
  line-height: 0.95;
  font-weight: 600;
  letter-spacing: -0.04em;
}

.lede {
  margin: 0;
  max-width: 62ch;
  color: var(--muted);
  font-size: 1.08rem;
  line-height: 1.7;
}

.hero-actions, .cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 26px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 18px;
  border-radius: 999px;
  border: 1px solid var(--line);
  font-weight: 600;
  transition: transform 160ms ease, box-shadow 160ms ease;
}
.button:hover { transform: translateY(-1px); box-shadow: 0 10px 24px rgba(0,0,0,0.08); }
.button.primary { background: var(--ink); color: #fff; border-color: transparent; }
.button.secondary { background: rgba(255,255,255,0.55); }

.hero-panel, .page-panel, .metric-card, .site-card, .detail-card, .pattern-card {
  border: 1px solid var(--line);
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.hero-panel {
  padding: 24px;
  display: grid;
  gap: 18px;
}

.stat-grid, .site-grid, .pattern-grid, .detail-grid {
  display: grid;
  gap: 18px;
}
.stat-grid { grid-template-columns: repeat(3, 1fr); }
.site-grid { grid-template-columns: repeat(3, 1fr); }
.pattern-grid { grid-template-columns: repeat(3, 1fr); }
.detail-grid { grid-template-columns: repeat(2, 1fr); }

.metric-card, .site-card, .pattern-card, .detail-card {
  padding: 22px;
}

.metric-value {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 8px;
}
.metric-label, .site-meta, .muted {
  color: var(--muted);
}

.section {
  padding: 28px 0 48px;
}

.section-head {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 24px;
  margin-bottom: 20px;
}
.section-head h2 {
  margin: 0;
  font-size: clamp(1.8rem, 3vw, 2.8rem);
  letter-spacing: -0.04em;
}
.section-head p { margin: 8px 0 0; color: var(--muted); }

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

.chip {
  display: inline-flex;
  padding: 8px 11px;
  border-radius: 999px;
  background: rgba(15,118,110,0.08);
  color: var(--accent);
  font-size: 0.84rem;
  font-weight: 600;
}

.site-card h3, .pattern-card h3, .detail-card h3 {
  margin: 0 0 8px;
  font-size: 1.25rem;
}

.site-links, .inline-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.link-pill {
  padding: 9px 12px;
  border-radius: 999px;
  background: rgba(255,255,255,0.55);
  border: 1px solid var(--line);
  font-size: 0.9rem;
}

.list {
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
  line-height: 1.7;
}

.page-hero {
  padding: 56px 0 24px;
}

.footer {
  padding: 28px 0 48px;
  color: var(--muted);
  font-size: 0.95rem;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  border-top: 1px solid var(--line);
  padding-top: 20px;
}

@media (max-width: 960px) {
  .hero, .stat-grid, .site-grid, .pattern-grid, .detail-grid {
    grid-template-columns: 1fr;
  }
  .topbar-inner, .section-head, .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }
}