/*
  colombia-open — design tokens and v1 landing page styles.
  Token source of truth: docs/brand/design-system.md — keep both in sync.
*/

:root {
  --bg: #F4F1EA;
  --bg-alt: #FFFFFF;
  --fg: #1B2A4A;
  --fg-muted: #5B6578;
  --accent: #C9A227;
  --alert: #B5542E;
  --line: rgba(27, 42, 74, 0.14);
  /* Theme-invariant: text on top of accent-colored chips/buttons must stay
     dark in both themes, since --accent is a similar light gold in both. */
  --accent-ink: #17233D;
  /* Theme-invariant: the terminal mockup is always a dark panel, like a
     real terminal, regardless of the page theme around it. */
  --terminal-bg: #0F1726;
  --terminal-fg: #D7E1F0;
  --terminal-muted: #6E7E9C;
  --terminal-gold: #D9B544;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #17233D;
    --bg-alt: #1F2E4E;
    --fg: #F4F1EA;
    --fg-muted: #AEB6C4;
    --accent: #D9B544;
    --alert: #E0825A;
    --line: rgba(244, 241, 234, 0.14);
    color-scheme: dark;
  }
}

:root[data-theme="dark"] {
  --bg: #17233D;
  --bg-alt: #1F2E4E;
  --fg: #F4F1EA;
  --fg-muted: #AEB6C4;
  --accent: #D9B544;
  --alert: #E0825A;
  --line: rgba(244, 241, 234, 0.14);
  color-scheme: dark;
}

* { box-sizing: border-box; }

html { scroll-padding-top: 88px; scroll-behavior: smooth; }
html, body { margin: 0; }

body {
  background: var(--bg);
  color: var(--fg);
  font-family: Inter, system-ui, -apple-system, sans-serif;
  -webkit-font-smoothing: antialiased;
  line-height: 1.55;
}

.wrap {
  max-width: 980px;
  margin-inline: auto;
  padding-inline: max(20px, env(safe-area-inset-left, 0px));
}

img, svg { max-width: 100%; }

a { color: inherit; }

h1, h2, h3 { text-wrap: balance; margin: 0; font-family: Fraunces, "Iowan Old Style", serif; font-style: italic; font-weight: 560; }

.eyebrow {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--fg-muted);
  margin: 0 0 0.6rem;
}

/* ---------- Nav ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-block: 1.3rem;
  flex-wrap: wrap;
}
.brand-group { display: flex; align-items: center; gap: 0.6rem; }
.nav-brand { display: flex; align-items: center; gap: 0.6rem; font-size: 1.15rem; text-decoration: none; }
.version-badge {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.68rem;
  color: var(--fg-muted);
  background: var(--bg-alt);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.15rem 0.5rem;
  text-decoration: none;
}
.version-badge:hover { color: var(--fg); border-color: var(--accent); }
.nav-brand svg { width: 30px; height: 30px; }
.nav-links { display: flex; align-items: center; gap: 1.4rem; font-size: 0.92rem; flex-wrap: wrap; }
.nav-links a { text-decoration: none; color: var(--fg-muted); }
.nav-links a:hover { color: var(--fg); }
.nav-github { display: inline-flex; align-items: center; gap: 0.4rem; }
.nav-github svg { width: 16px; height: 16px; }
.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  color: var(--fg);
  background: var(--bg-alt);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0;
  cursor: pointer;
}
.theme-toggle:hover { border-color: var(--accent); }
.theme-toggle svg { width: 18px; height: 18px; }
.theme-toggle .icon-sun { display: none; }
.theme-toggle .icon-moon { display: block; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .theme-toggle .icon-sun { display: block; }
  :root:not([data-theme="light"]) .theme-toggle .icon-moon { display: none; }
}
:root[data-theme="dark"] .theme-toggle .icon-sun { display: block; }
:root[data-theme="dark"] .theme-toggle .icon-moon { display: none; }

/* ---------- Hero ---------- */
.hero { padding-block: 3.5rem 4.5rem; }
.hero-mark { width: 120px; height: 120px; margin-bottom: 1.5rem; }
.hero h1 { font-size: clamp(2.1rem, 5.5vw, 3.1rem); max-width: 18ch; }
.hero .lede { max-width: 54ch; color: var(--fg-muted); font-size: 1.1rem; margin-top: 1rem; }
.hero-ctas { display: flex; gap: 0.8rem; margin-top: 2rem; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; gap: 0.4rem;
  font-family: Inter, sans-serif; font-weight: 600; font-size: 0.92rem;
  padding: 0.65rem 1.3rem; border-radius: 10px; text-decoration: none;
}
.btn-primary { background: var(--accent); color: var(--accent-ink); }
.btn-secondary { background: transparent; color: var(--fg); border: 1px solid var(--line); }
.btn-secondary:hover { border-color: var(--accent); }

/* ---------- Section shell ---------- */
.band { padding-block: 3.8rem; border-top: 1px solid var(--line); }
.band h2 { font-size: 1.7rem; margin-bottom: 0.7rem; }
.band .intro { color: var(--fg-muted); margin-bottom: 2rem; }

/* ---------- Code example ---------- */
.terminal {
  background: var(--terminal-bg);
  border-radius: 12px;
  padding: 1.2rem 1.4rem;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.86rem;
  color: var(--terminal-fg);
  overflow-x: auto;
}
.terminal .muted { color: var(--terminal-muted); }
.terminal .gold { color: var(--terminal-gold); }
.terminal pre { margin: 0; white-space: pre; }
.terminal-note { font-size: 0.82rem; color: var(--fg-muted); margin-top: 0.75rem; }
.terminal-note a { color: var(--accent); text-decoration: none; }
.terminal-note a:hover { text-decoration: underline; }

/* ---------- Catalog ---------- */
.catalog-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 1.1rem; }
.dataset-card {
  background: var(--bg-alt);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 1.5rem 1.4rem;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}
.dataset-card h3 { font-style: normal; font-weight: 700; font-size: 1.05rem; font-family: "IBM Plex Mono", monospace; }
.dataset-card p { margin: 0; color: var(--fg-muted); font-size: 0.92rem; }
.dataset-meta { display: flex; gap: 0.5rem; flex-wrap: wrap; margin-top: 0.3rem; }
.pill {
  font-family: "IBM Plex Mono", monospace; font-size: 0.72rem;
  background: var(--bg); border: 1px solid var(--line); border-radius: 999px;
  padding: 0.25rem 0.65rem; color: var(--fg-muted);
}
.dataset-source { font-size: 0.82rem; color: var(--fg-muted); margin-top: 0.4rem; }
.dataset-source a { color: var(--accent); text-decoration: none; }

/* ---------- Roadmap ---------- */
.roadmap-table { width: 100%; border-collapse: collapse; font-size: 0.88rem; }
.roadmap-table th {
  text-align: left; font-family: "IBM Plex Mono", monospace; font-size: 0.72rem;
  letter-spacing: 0.06em; text-transform: uppercase; color: var(--fg-muted);
  padding: 0.6rem 0.8rem; border-bottom: 1px solid var(--line);
}
.roadmap-table td { padding: 0.7rem 0.8rem; border-bottom: 1px solid var(--line); vertical-align: top; }
.roadmap-table tr:last-child td { border-bottom: none; }
.status-dot { display: inline-block; width: 0.55rem; height: 0.55rem; border-radius: 50%; margin-right: 0.45rem; }
.status-dot.done { background: var(--accent); }
.status-dot.pending { background: var(--fg-muted); opacity: 0.55; }
.roadmap-table-wrap { overflow-x: auto; }

/* ---------- Footer ---------- */
footer.band { color: var(--fg-muted); font-size: 0.86rem; }
footer.band .foot-row { display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }
footer.band a { text-decoration: none; color: var(--fg-muted); }
footer.band a:hover { color: var(--fg); }

@media (max-width: 480px) {
  .band { padding-block: 2.6rem; }
  .hero { padding-block: 2.6rem 3rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}