:root {
  --bg0: #0b1218;
  --bg1: #121c26;
  --ink: #e8eef4;
  --muted: #9aafc0;
  --teal: #3dceb5;
  --teal-dim: rgba(61, 206, 181, 0.16);
  --line: rgba(154, 175, 192, 0.22);
  --warn: #f0b47a;
  --max: 44rem;
  --font-display: "Fraunces", "Iowan Old Style", Georgia, serif;
  --font-body: "Source Sans 3", "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  min-height: 100%;
  color: var(--ink);
  background:
    radial-gradient(1200px 600px at 10% -10%, rgba(61, 206, 181, 0.18), transparent 55%),
    radial-gradient(900px 500px at 100% 0%, rgba(80, 120, 180, 0.14), transparent 50%),
    linear-gradient(180deg, var(--bg1), var(--bg0) 40%, #080e14);
  font-family: var(--font-body);
  line-height: 1.6;
}

a { color: var(--teal); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: #7fe0ce; }

.wrap {
  width: min(100% - 2rem, var(--max));
  margin: 0 auto;
  padding: 2.5rem 0 4rem;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 2.5rem;
}

.brand {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.35rem;
  letter-spacing: 0.02em;
  color: var(--ink);
  text-decoration: none;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem 1.1rem;
  font-size: 0.95rem;
}

.nav-links a { color: var(--muted); text-decoration: none; }
.nav-links a:hover,
.nav-links a[aria-current="page"] { color: var(--teal); }

.hero {
  padding: 3rem 0 2.5rem;
}

.hero h1 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(2.4rem, 7vw, 3.6rem);
  line-height: 1.05;
  margin: 0 0 0.85rem;
  letter-spacing: -0.02em;
}

.hero .lede {
  max-width: 32rem;
  color: var(--muted);
  font-size: 1.1rem;
  margin: 0 0 1.75rem;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.7rem 1.15rem;
  border-radius: 0.55rem;
  border: 1px solid var(--line);
  font-weight: 600;
  text-decoration: none;
  color: var(--ink);
  background: transparent;
}

.btn-primary {
  background: var(--teal);
  border-color: transparent;
  color: #062019;
}

.btn-primary:hover { color: #062019; filter: brightness(1.05); }

.meta-note {
  margin-top: 2.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.92rem;
}

.doc h1 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.35rem);
  line-height: 1.15;
  margin: 0 0 0.4rem;
}

.doc .updated {
  color: var(--muted);
  font-size: 0.92rem;
  margin: 0 0 1.25rem;
}

.banner {
  background: var(--teal-dim);
  border: 1px solid var(--line);
  border-radius: 0.65rem;
  padding: 0.9rem 1rem;
  color: var(--warn);
  font-size: 0.95rem;
  margin-bottom: 1.5rem;
}

.doc h2 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  margin: 1.75rem 0 0.45rem;
  color: var(--teal);
  font-weight: 600;
}

.doc p, .doc li { color: var(--ink); }
.doc ul { padding-left: 1.2rem; }
.doc li { margin: 0.35rem 0; }

.edit-mark {
  display: inline-block;
  margin-left: 0.35rem;
  padding: 0.1rem 0.4rem;
  border-radius: 0.3rem;
  background: rgba(240, 180, 122, 0.18);
  color: var(--warn);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  vertical-align: middle;
}

.footer {
  margin-top: 3rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.9rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  justify-content: space-between;
}

@media (prefers-reduced-motion: no-preference) {
  .hero h1 {
    animation: rise 0.7s ease-out both;
  }
  .hero .lede {
    animation: rise 0.7s ease-out 0.08s both;
  }
  .cta-row {
    animation: rise 0.7s ease-out 0.16s both;
  }
}

@keyframes rise {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: none; }
}