:root {
  --bg: #0B1220;
  --surface: #131C2E;
  --line: #24314A;
  --text: #E6EDF7;
  --text-2: #9FB0C9;
  --text-3: #6B7C96;
  --insight: #3B82F6;
  --action: #84CC16;
  --result: #22D3EE;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.65 ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  -webkit-text-size-adjust: 100%;
}

a { color: var(--insight); }

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--line);
}

.brand {
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: -0.01em;
  color: var(--text);
  text-decoration: none;
}

.site-header nav a {
  margin-left: 1.25rem;
  color: var(--text-2);
  text-decoration: none;
  font-size: 0.9rem;
}
.site-header nav a:hover { color: var(--text); }

.hero {
  max-width: 46rem;
  margin: 0 auto;
  padding: 5rem 1.5rem 4rem;
}
.hero h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin: 0 0 1rem;
}
.hero .lede { font-size: 1.15rem; color: var(--text-2); margin: 0 0 2rem; }
.hero .accent { color: var(--result); }

.doc {
  max-width: 46rem;
  margin: 0 auto;
  padding: 3rem 1.5rem 5rem;
}
.doc h1 { font-size: 2rem; letter-spacing: -0.02em; margin: 0 0 0.5rem; }
.doc h2 {
  font-size: 1.3rem;
  margin: 2.75rem 0 0.75rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--line);
}
.doc h3 { font-size: 1.05rem; margin: 1.75rem 0 0.5rem; color: var(--result); }
.doc p, .doc li { color: var(--text-2); }
.doc strong { color: var(--text); }
.doc hr { display: none; }

.doc table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.25rem 0;
  font-size: 0.9rem;
  display: block;
  overflow-x: auto;
}
.doc th, .doc td {
  border: 1px solid var(--line);
  padding: 0.5rem 0.7rem;
  text-align: left;
  vertical-align: top;
}
.doc th { color: var(--text-3); font-weight: 600; }

.doc code {
  background: var(--surface);
  padding: 0.1rem 0.35rem;
  border-radius: 4px;
  font-size: 0.9em;
}

.effective {
  color: var(--text-3);
  font-size: 0.875rem;
  margin: 0 0 2rem;
}

.site-footer {
  border-top: 1px solid var(--line);
  padding: 2rem 1.5rem;
  color: var(--text-3);
  font-size: 0.875rem;
  text-align: center;
}
.site-footer a { color: var(--text-3); }