:root {
  /* Brand palette — extracted from the SVG artwork; full palette + roles documented in
     docs/branding/colours.md. Cream-and-charcoal paper-and-ink, sand/tan lock steps,
     sage-teal water. */
  --charcoal: #211f1c;
  --cream:    #f4efe3;
  --sand:     #ece4d2;
  --tan:      #ddd3bb;
  --slate:    #4f4b43;

  /* Semantic roles. Ground is Sand (not the brighter Cream) so a full page reads warm
     rather than glaring; Cream becomes the raised-surface colour. Accent is the brand
     Water (#6e928b) darkened toward the same hue until it clears AA on Sand. */
  --bg:            var(--sand);
  --surface:       var(--cream);
  --fg:            var(--charcoal);
  --muted:         var(--slate);
  --accent:        #3f6058;
  --accent-strong: #2e4a45;
  --border:        var(--tan);
  --code-bg:       var(--cream);
  color-scheme: light;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  color: var(--fg);
  background: var(--bg);
  font: 16px/1.65 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
a { color: var(--accent); }
a:hover { color: var(--accent-strong); }

.site-header {
  display: flex; flex-wrap: wrap; gap: 1rem; align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1.25rem; border-bottom: 1px solid var(--slate);
  background: var(--tan);
}
.site-header .brand {
  display: inline-flex; align-items: center; gap: 0.5rem;
  font-weight: 600; text-decoration: none; color: var(--fg);
}
.site-header nav { display: flex; flex-wrap: wrap; gap: 1rem; }
.site-header nav a { color: var(--muted); text-decoration: none; }
.site-header nav a:hover { color: var(--accent); }

main.doc, main.home { max-width: 56rem; margin: 0 auto; padding: 2rem 1.25rem 3rem; }

h1 { font-size: 2rem; line-height: 1.2; margin: 1.5rem 0 0.5rem; }
h2 { margin-top: 2.25rem; padding-top: 0.6rem; border-top: 1px solid var(--border); }
h3 { margin-top: 1.75rem; }

code {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 0.9em;
  background: var(--code-bg); padding: 0.15em 0.35em; border-radius: 4px;
}
pre {
  background: var(--code-bg); padding: 1rem; border-radius: 8px;
  overflow-x: auto; border: 1px solid var(--border);
}
pre code { background: none; padding: 0; }
pre.mermaid { background: none; border: none; text-align: center; }

blockquote {
  margin: 1.25rem 0; padding: 0.25rem 1rem; color: var(--muted);
  border-left: 3px solid var(--border);
}
table { border-collapse: collapse; width: 100%; margin: 1.25rem 0; display: block; overflow-x: auto; }
th, td { border: 1px solid var(--border); padding: 0.5rem 0.75rem; text-align: left; }
th { background: var(--code-bg); }
img { max-width: 100%; }

/* Threat-register pills (web/threat-register.lua emits these classes). */
.badge {
  display: inline-block; padding: 0.05em 0.5em; border-radius: 999px;
  font-size: 0.8em; font-weight: 600; line-height: 1.5; white-space: nowrap;
  border: 1px solid var(--border);
}
.severity-high   { background: #f3d9d2; color: #7a2718; border-color: #e0b7ac; }
.severity-medium { background: #f3e7cf; color: #7a5a16; border-color: #e2cfa6; }
.severity-low    { background: #dde7e0; color: #2e4a45; border-color: #c3d3c9; }
.status-open      { background: #f3d9d2; color: #7a2718; border-color: #e0b7ac; }
.status-mitigated { background: #d7e6da; color: #285c36; border-color: #b4d3bb; }
.status-na        { background: var(--tan); color: var(--muted); }
h3.threat { scroll-margin-top: 1rem; }

.site-footer {
  max-width: 56rem; margin: 0 auto; padding: 2rem 1.25rem 3rem;
  border-top: 1px solid var(--border); color: var(--muted); font-size: 0.9rem;
}
.site-footer a { color: var(--muted); }
.site-footer .made-in { margin-top: 1rem; font-size: 0.85rem; }

/* Landing page */
.hero { text-align: center; padding: 3rem 0 1rem; }
.hero-art {
  display: block; width: 100%; max-width: 40rem; height: auto;
  margin: 0 auto 1.5rem; border: 1px solid var(--border); border-radius: 12px;
}
.hero h1 { border: none; margin-bottom: 0; }
.hero .lead { color: var(--muted); font-size: 1.15rem; max-width: 34rem; margin: 0.5rem auto 0; }
.hero-actions {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: center;
  gap: 1rem; margin-top: 1.25rem;
}
.hero-actions .primary-action {
  padding: 0.55rem 0.9rem; border-radius: 8px; color: var(--surface);
  background: var(--accent); font-weight: 600; text-decoration: none;
}
.hero-actions .primary-action:hover { color: var(--surface); background: var(--accent-strong); }
.disclosure-note {
  max-width: 38rem; margin: 0 auto; padding: 0.75rem 1rem; text-align: center;
  font-size: 0.9rem; color: var(--muted);
  border: 1px solid var(--border); border-radius: 10px; background: var(--surface);
}
.cards {
  display: grid; gap: 1rem; margin: 2.5rem 0;
  grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr));
}
.path-heading { margin-top: 2.5rem; text-align: center; }
.path-intro { max-width: 38rem; margin: 0.5rem auto 0; text-align: center; color: var(--muted); }
.cards.paths { margin-top: 1.5rem; }
.card {
  border: 1px solid var(--border); border-radius: 10px; padding: 1.1rem 1.25rem;
  text-decoration: none; color: inherit; background: var(--surface);
}
.card:hover { border-color: var(--accent); }
.card h3 { margin: 0 0 0.3rem; }
.card p { margin: 0; color: var(--muted); font-size: 0.95rem; }
/* Supplementary link beneath the card grid (e.g. the raw OpenAPI spec): a whole
   card is an anchor, so an in-card inline link would nest <a> in <a>; this keeps
   such links valid and reachable without breaking the card affordance. */
.cards-note { margin: 0; color: var(--muted); font-size: 0.9rem; }