@import url("https://fonts.googleapis.com/css2?family=Instrument+Sans:opsz,wght@14..32,400..700&display=swap");

:root {
  color-scheme: light;
  --page: #fbf8f2;
  --canvas: #fbf8f2;
  --panel: #fffdf8;
  --surface: #fffdf8;
  --surface-soft: #edf2ec;
  --white: #fffdf8;
  --ink: #1c2b34;
  --muted: #68716f;
  --line: #dadbd2;
  --brand: #3f6a5b;
  --brand-deep: #2f5146;
  --headline-accent: #005fcc;
  --navy: #3f6a5b;
  --ground: #3f6a5b;
  --briefing: #3f6a5b;
  --quorum: #3f6a5b;
  --test: #3f6a5b;
  --accent: #3f6a5b;
  --cyan: #ffffff;
  --lime: #ffffff;
  --briefing-accent: #ffffff;
  --test-accent: #ffffff;
  --shadow: 0 12px 30px rgba(38, 52, 46, .055);
}

html { scroll-behavior: smooth; }

body {
  background: var(--page);
  color: var(--ink);
  font-family: "Instrument Sans", "Avenir Next", Avenir, "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-synthesis: none;
}

/* The hub is a system overview; detail pages retain the warmer porcelain canvas. */
body.catalog-hub {
  --page: #f3f6f7;
  --canvas: #f3f6f7;
}

a { text-underline-offset: 3px; }

/* Text links share one readable treatment; buttons and navigation retain their own affordances. */
a:not(.button):not(.crumb):not(.evidence-card):not(.back) {
  color: var(--brand-deep);
  font-weight: 600;
  letter-spacing: 0;
  text-decoration-thickness: 1.25px;
  text-underline-offset: 3px;
}

a:focus-visible {
  outline: 3px solid var(--headline-accent) !important;
  outline-offset: 3px;
  box-shadow: 0 0 0 3px var(--headline-accent) !important;
}

main { padding-bottom: clamp(64px, 8vw, 104px); }

main > header,
main > .hero {
  margin-top: 16px;
  margin-bottom: clamp(18px, 3vw, 34px);
  padding: clamp(14px, 2vw, 24px) 0 clamp(12px, 2vw, 20px);
}

h1 {
  color: var(--headline-accent);
  font-weight: 600;
  letter-spacing: -.015em;
}

h2 {
  color: var(--headline-accent);
  font-weight: 600;
  letter-spacing: -.01em;
}

h1, h2 { text-wrap: balance; }

h3, strong { color: var(--ink); }

.crumb {
  display: inline-flex;
  align-items: center;
  color: var(--muted);
  font-size: .9rem;
  font-weight: 600;
  letter-spacing: 0;
  line-height: 1.3;
}

.crumb:hover { color: var(--brand-deep); }

.eyebrow {
  display: inline-flex;
  width: fit-content;
  padding: 5px 8px;
  border: 1px solid #c6d4ca;
  border-radius: 4px;
  color: var(--brand-deep);
  /* Labels remain a compact, shared component even inside a locally styled section. */
  font-size: .72rem !important;
  font-weight: 700;
  letter-spacing: .09em;
  line-height: 1.2 !important;
  text-transform: uppercase;
}

.mechanism {
  color: var(--ink);
  font-size: 1rem;
  font-weight: 620;
  letter-spacing: -.008em;
  line-height: 1.7;
}

.button,
a.button {
  border-radius: 6px;
  font-weight: 650;
  transition: background .18s ease, border-color .18s ease, color .18s ease, transform .18s ease;
}

.button:hover,
a.button:hover { transform: translateY(-1px); }

.button.primary,
a.button.primary,
.briefing a.button.primary,
.ground a.button.primary,
.quorum a.button.primary,
.test a.button.primary,
.steward a.button.primary {
  background: var(--brand);
  border-color: var(--brand);
  color: #ffffff;
  box-shadow: 0 6px 14px rgba(48, 81, 70, .13);
}

.button.primary:hover,
a.button.primary:hover,
.briefing a.button.primary:hover,
.ground a.button.primary:hover,
.quorum a.button.primary:hover,
.test a.button.primary:hover,
.steward a.button.primary:hover { background: var(--brand-deep); border-color: var(--brand-deep); }

.button.secondary,
a.button.secondary {
  background: var(--panel);
  border-color: var(--line);
  color: var(--ink);
}

.button.secondary:hover,
a.button.secondary:hover {
  background: var(--surface-soft);
  border-color: #a9c8bd;
}

.card,
.skill,
.route,
.step,
.panel,
.path-card,
.section,
.faq-item,
.example-box,
.callout {
  background: var(--panel);
  border-color: var(--line);
  border-radius: 10px;
  box-shadow: none;
}

.callout { border-left-color: var(--brand); }

.tag {
  border-color: #cbd6cc;
  color: var(--brand-deep);
}

.catalog-hub .tag.compatibility {
  border-color: #a9c8bd;
  background: #f0f7f3;
  color: var(--brand-deep);
}

.choice-table th { background: var(--surface-soft); }

pre {
  background: var(--brand-deep);
  color: #f7f4ee;
}

.scenario {
  background: var(--brand-deep);
  border-color: var(--brand-deep);
}

.scenario p { color: #e1eee5; }

.step span {
  background: transparent;
  color: var(--muted);
  font-weight: 500;
  letter-spacing: 0;
  line-height: 1.45;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: .01ms !important;
  }
}