/* =============================================================
   Civilytics Design Tokens — single source of truth.
   Mirrored from crdc-arrests/theme/_tokens.scss so this demo app
   stays in sync with the white paper / social media visual style.

   Neutrals: warm paper → civic ink
   Brand:    Civic Navy (primary) + Ember (accent)
   VIZ:      Supporting palette for data series
============================================================ */

:root {
  /* — Paper (backgrounds) — */
  --cv-paper:    #FAF7F2;
  --cv-paper-2:  #F2EDE4;
  --cv-paper-3:  #E6DFD1;

  /* — Rule / borders — */
  --cv-rule:         #D6CEBD;
  --cv-rule-strong:  #B8AE97;

  /* — Ink (text) — */
  --cv-ink:    #0E1A2B;
  --cv-ink-2:  #2B3A52;
  --cv-ink-3:  #5A6A82;
  --cv-ink-4:  #8C97AB;

  /* — Civic Navy (primary brand) — */
  --cv-navy-50:  #EEF3FA;
  --cv-navy-100: #DDE6F2;
  --cv-navy-200: #B3C6E0;
  --cv-navy-300: #7A9BCA;
  --cv-navy-400: #4A74B0;
  --cv-navy-500: #2E5590;
  --cv-navy-600: #22406A;   /* links, primary buttons */
  --cv-navy-700: #1A2E4A;   /* hover state */

  /* — Ember (accent) — */
  --cv-accent:          #C25311;  /* main accent color */
  --cv-accent-text:     #A04400;
  --cv-accent-dark:     #923D00;
  --cv-accent-hover:    #7A3600;

  /* — Supporting data-viz palette (from _tokens.scss) — */
  --teal-600:  #1F6F70;
  --plum-600:  #6B3A5E;
  --moss-600:  #4A6B2F;
  --brass-600: #B8751C;

  /* — Semantic status colors — */
  --cv-success: #4A6B2F;   /* moss */
  --cv-warning: #9A5F18;
  --cv-danger:  #A6271D;

  /* — Font stacks (from _tokens.scss) — */
  --font-display: 'Libre Franklin', 'Franklin Gothic', 'Inter', system-ui, sans-serif;
  --font-sans:    'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
  --font-mono:    'JetBrains Mono', 'SF Mono', Menlo, Consolas, monospace;

  /* — Spacing scale (from _tokens.scss) — */
  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2rem;
  --space-5: 3rem;
  --space-6: 4rem;
  --space-7: 6rem;

  /* — Border radius (from _tokens.scss) — */
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 12px;

  /* — Race categorical palette (validated, see src/utils/colors.js) — */
  --race-wh: #3D6FC4;
  --race-bl: #C98A2A;
  --race-hi: #9C3F86;
  --race-am: #3D9A6B;

  /* — Chart-specific colors — aliased onto the tokens charts actually use */
  --chart-modeled:     var(--cv-navy-600);
  --chart-frequentist: var(--cv-ink-4);
  --chart-observed:    var(--cv-ink);

  /* — Model quadrant colors — */
  --model-one-year-baseline:   var(--cv-navy-600);
  --model-three-year-baseline: var(--teal-600);
}

/* =============================================================
   Base reset + typography (from crdc-arrests/theme/civilytics.scss)
============================================================ */

* { box-sizing: border-box; }

html { font-size: 100%; -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; }

body {
  margin: 0;
  background: var(--cv-paper);
  color: var(--cv-ink);
  font-family: var(--font-sans);
  line-height: 1.65;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: -0.025em;
  line-height: 1.08;
  color: var(--cv-ink);
  text-wrap: pretty;
  margin: 0 0 .4em;
}

h1 { font-size: clamp(2.25rem, 4.2vw, 3.75rem); font-weight: 900; letter-spacing: -0.035em; line-height: 1.0; }
h2 { font-size: clamp(1.75rem, 2.8vw, 2.375rem); }
h3 { font-size: 1.5rem; font-weight: 700; letter-spacing: -0.022em; color: var(--cv-ink-2); }

p, li { line-height: 1.7; text-wrap: pretty; }

a {
  color: var(--cv-navy-600);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
  transition: color 120ms ease;
}
a:hover { color: var(--cv-navy-700); text-decoration-thickness: 2px; }

code, .mono { font-family: var(--font-mono); font-feature-settings: "tnum" 1, "zero" 1; }

:focus-visible { outline: 2px solid var(--cv-accent); outline-offset: 2px; }

/* =============================================================
   Layout helpers (from civilytics.scss)
============================================================ */

.cv-wrap { max-width: 60rem; margin: 0 auto; padding: 0 var(--space-3); }

.cv-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: var(--space-3) 0; border-bottom: 1px solid var(--cv-rule);
}
.cv-header .cv-logo { height: 28px; display: block; }

/* Eyebrow / section label (from civilytics.scss + extras.css) */
.eyebrow, .cv-eyebrow {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--cv-accent-text);
  margin: 0 0 0.5rem;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}
.eyebrow::before, .cv-eyebrow::before {
  content: "";
  display: inline-block;
  width: 24px; height: 2px;
  background: var(--cv-accent);
}

/* Stat callout — hero numbers (from extras.css) */
.stat-callout {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 2rem;
  margin: 2rem 0 2.5rem;
  padding: 1.5rem 0;
  border-top: 3px double var(--cv-ink);
  border-bottom: 1px solid var(--cv-rule);
}
.stat-callout .stat-num {
  font-family: 'Source Serif 4', Georgia, serif;
  font-weight: 700;
  font-size: 3rem;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--cv-ink);
  font-variant-numeric: tabular-nums;
  display: block;
}
.stat-callout .stat-label {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--cv-ink-3);
  margin-top: 0.4rem;
}
.stat-callout .stat-label.accent { color: var(--cv-accent); }

/* Card component (used for district suggestions, model cards) */
.cv-card {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  background: #fff;
  border: 1px solid var(--cv-rule);
  border-top: 3px solid var(--cv-accent);
  border-radius: var(--radius-lg);
  padding: var(--space-2) var(--space-3);
  text-decoration: none;
  transition: border-color 120ms ease, box-shadow 120ms ease;
}
.cv-card:hover {
  border-color: var(--cv-ink-3);
  box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}

/* Button (primary) */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.625rem 1.25rem;
  background: var(--cv-navy-600);
  color: #fff;
  border: none;
  border-radius: var(--radius-md);
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 120ms ease, transform 20ms ease;
}
.btn-primary:hover { background: var(--cv-navy-700); }
.btn-primary:active { transform: scale(0.98); }
.btn-primary:disabled { opacity: 0.5; cursor: not-allowed; }

/* Button (secondary / outline) */
.btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: transparent;
  color: var(--cv-navy-600);
  border: 1px solid var(--cv-rule);
  border-radius: var(--radius-md);
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: background 120ms ease, color 120ms ease;
}
.btn-outline:hover {
  background: var(--cv-paper-2);
  color: var(--cv-navy-700);
}

/* Footer */
.cv-footer {
  border-top: 1px solid var(--cv-rule);
  padding: var(--space-4) 0;
  color: var(--cv-ink-3);
  font-size: 0.9rem;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  justify-content: space-between;
  align-items: center;
}

/* Responsive */
@media (max-width: 680px) { .cv-footer { flex-direction: column; text-align: center; } }

/* Spinner used while opt-in multi-shard draw fetches are in flight */
@keyframes cv-spin { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) {
  @keyframes cv-spin { to { transform: none; } }
}