:root {
  --navy: #1F3A5F;
  --ink: #1A2233;
  --muted: #5A6573;
  --border: #E1E5EA;
  --amber-bg: #FFF8E1;
  --amber-line: #B07A00;
  --surface: #F5F6F8;
}

* { box-sizing: border-box; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  color: var(--ink);
  max-width: 760px;
  margin: 0 auto;
  padding: 2rem 1.5rem 3rem;
  line-height: 1.6;
  font-size: 16px;
  background: white;
}

header.page-header {
  border-bottom: 2px solid var(--navy);
  padding-bottom: 1rem;
  margin-bottom: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.brand {
  font-weight: 800;
  color: var(--navy);
  letter-spacing: 2px;
  font-size: 14px;
  text-decoration: none;
}
.brand:hover { text-decoration: underline; }

.brand-nav a {
  color: var(--muted);
  font-size: 13px;
  margin-left: 1rem;
  text-decoration: none;
}
.brand-nav a:hover { color: var(--navy); text-decoration: underline; }

h1 {
  color: var(--navy);
  font-size: 32px;
  font-weight: 800;
  margin: 1rem 0 0.4rem;
}

.subtitle {
  color: var(--muted);
  font-size: 15px;
  margin: 0 0 1.5rem;
}

h2 {
  color: var(--navy);
  font-size: 22px;
  margin-top: 2.2rem;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.4rem;
}

h3 {
  color: var(--ink);
  font-size: 17px;
  margin-top: 1.5rem;
  margin-bottom: 0.4rem;
}

p, ul, ol { margin: 0.75rem 0; }

.disclaimer {
  background: var(--amber-bg);
  border-left: 4px solid var(--amber-line);
  padding: 12px 16px;
  margin: 16px 0 24px;
  font-size: 14px;
  color: var(--muted);
  font-style: italic;
}

.meta {
  color: var(--muted);
  font-size: 14px;
  margin-bottom: 1rem;
}

.meta strong { color: var(--ink); }

table {
  border-collapse: collapse;
  width: 100%;
  margin: 1rem 0;
  font-size: 14px;
}

th, td {
  border: 1px solid var(--border);
  padding: 8px 12px;
  text-align: left;
  vertical-align: top;
}

th {
  background: var(--surface);
  color: var(--navy);
  font-weight: 700;
}

ul, ol { padding-left: 1.5rem; }
li { margin-bottom: 0.35rem; }

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

code, kbd {
  background: var(--surface);
  padding: 2px 6px;
  border-radius: 3px;
  font-size: 14px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 2rem 0;
}

footer.page-footer {
  margin-top: 3rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 13px;
  text-align: center;
}

.doc-links {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin: 2rem 0;
}

.doc-card {
  flex: 1 1 240px;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.5rem;
  text-decoration: none;
  color: var(--ink);
  background: white;
  transition: border-color 0.15s;
}
.doc-card:hover {
  border-color: var(--navy);
}
.doc-card h3 {
  margin: 0 0 0.5rem;
  color: var(--navy);
}
.doc-card p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

@media (max-width: 600px) {
  body { padding: 1.25rem 1rem 2rem; font-size: 15px; }
  h1 { font-size: 26px; }
  h2 { font-size: 19px; }
}