:root {
  --paper: #f7f3ea;
  --paper-2: #efe9dc;
  --card: #fffcf6;
  --ink: #1a2330;
  --muted: #5a6570;
  --faint: #8a929a;
  --line: #d9d2c4;
  --accent: #8c3b2a;
  --accent-soft: #f3e4dc;
  --link: #1e4f6e;
  --link-hover: #0f3348;
  --gold: #a67c3d;
  --ok: #2f5d3a;
  --warn: #7a5a12;
  --shadow: 0 1px 2px rgba(26, 35, 48, 0.06), 0 8px 24px rgba(26, 35, 48, 0.05);
  --max: 72rem;
  --serif: "Source Serif 4", "Iowan Old Style", Palatino, Georgia, serif;
  --sans: "Source Sans 3", "Segoe UI", system-ui, -apple-system, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 1.05rem;
  line-height: 1.65;
  min-height: 100vh;
}

img { max-width: 100%; }

a {
  color: var(--link);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}

a:hover { color: var(--link-hover); }

.skip-link {
  position: absolute;
  left: 0.75rem;
  top: -3rem;
  background: var(--ink);
  color: var(--card);
  padding: 0.4rem 0.7rem;
  z-index: 20;
}

.skip-link:focus { top: 0.75rem; }

.wrap {
  width: min(var(--max), calc(100% - 2rem));
  margin-inline: auto;
}

.site-header {
  border-bottom: 1px solid var(--line);
  background: var(--card);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
  padding: 0.9rem 0;
}

.brand {
  display: flex;
  align-items: baseline;
  gap: 0.7rem;
  text-decoration: none;
  color: inherit;
}

.brand-mark {
  font-family: var(--serif);
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--accent);
}

.brand-name {
  font-family: var(--serif);
  font-size: 1.15rem;
  font-weight: 650;
}

.brand-kicker {
  display: block;
  font-family: var(--sans);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--line);
  color: var(--ink);
  padding: 0.35rem 0.55rem;
  border-radius: 4px;
}

.site-nav ul {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 1.15rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-nav a {
  color: var(--ink);
  text-decoration: none;
  font-size: 0.95rem;
}

.site-nav a[aria-current="page"],
.site-nav a:hover {
  color: var(--accent);
}

main { padding: 2.2rem 0 3.5rem; }

.hero {
  padding: 1.4rem 0 2rem;
  border-bottom: 1px solid var(--line);
  margin-bottom: 2rem;
}

.eyebrow {
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gold);
  font-weight: 650;
  margin: 0 0 0.4rem;
}

h1, h2, h3 {
  font-family: var(--serif);
  line-height: 1.22;
  font-weight: 650;
}

h1 {
  font-size: clamp(2rem, 4vw, 2.85rem);
  margin: 0 0 0.7rem;
}

h2 {
  font-size: 1.55rem;
  margin: 2.1rem 0 0.7rem;
}

h3 { font-size: 1.15rem; margin: 1.4rem 0 0.4rem; }

.lede {
  font-family: var(--serif);
  font-size: 1.22rem;
  color: var(--muted);
  max-width: 42rem;
  margin: 0 0 1.1rem;
}

.note {
  background: var(--accent-soft);
  border-left: 3px solid var(--accent);
  padding: 0.85rem 1rem;
  color: var(--ink);
}

.grid {
  display: grid;
  gap: 1rem;
}

.cards { grid-template-columns: repeat(auto-fill, minmax(16rem, 1fr)); }

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 1.05rem 1.1rem 1.15rem;
  box-shadow: var(--shadow);
  text-decoration: none;
  color: inherit;
  display: block;
}

a.card:hover { border-color: var(--gold); }

.card h3 { margin-top: 0.2rem; }

.badge {
  display: inline-block;
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-weight: 700;
  padding: 0.15rem 0.45rem;
  border-radius: 999px;
  background: var(--paper-2);
  color: var(--muted);
}

.badge.core { background: #e6eee7; color: var(--ok); }
.badge.expanded { background: #e7eef3; color: var(--link); }
.badge.invited { background: #f4ecd4; color: var(--warn); }

.facts {
  width: 100%;
  border-collapse: collapse;
  background: var(--card);
  border: 1px solid var(--line);
}

.facts th,
.facts td {
  text-align: left;
  padding: 0.65rem 0.8rem;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

.facts th {
  width: 12rem;
  color: var(--muted);
  font-weight: 600;
}

.related {
  display: grid;
  gap: 0.65rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.related li {
  background: var(--card);
  border: 1px solid var(--line);
  padding: 0.7rem 0.85rem;
}

.crumbs {
  font-size: 0.9rem;
  color: var(--muted);
  margin-bottom: 1rem;
}

.crumbs a { color: var(--muted); }

.cluster {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.1rem;
  margin: 0.4rem 0 0;
  padding: 0;
  list-style: none;
}

.site-footer {
  background: var(--ink);
  color: #e8e4db;
  padding: 2.2rem 0 1.4rem;
}

.site-footer a { color: #d7e6ef; }

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 1.5rem;
}

.footer-brand {
  font-family: var(--serif);
  font-size: 1.2rem;
  margin: 0 0 0.4rem;
}

.site-footer h2 {
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #cfc6b4;
  margin: 0 0 0.55rem;
}

.site-footer ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-footer li { margin: 0.28rem 0; }

.footer-bottom {
  margin-top: 1.6rem;
  padding-top: 1rem;
  border-top: 1px solid #36414d;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.6rem;
  font-size: 0.92rem;
  color: #c4c0b6;
}

.footer-bottom a { color: #f0d2b4; }

.machine {
  background: #1a2330;
  color: #e8e4db;
  padding: 1rem 1.1rem;
  overflow: auto;
  font-size: 0.88rem;
  line-height: 1.45;
  border-radius: 6px;
}

.prose > p { max-width: 42rem; }

@media (max-width: 800px) {
  .nav-toggle { display: inline-block; }
  .site-nav { display: none; }
  .site-nav.open { display: block; }
  .site-nav ul { flex-direction: column; padding: 0.4rem 0 0.8rem; }
  .footer-grid { grid-template-columns: 1fr; }
  .facts th { width: 8rem; }
}