/* ── atangdesign unified tokens ──────────────────────────────
   Loaded AFTER the exported _next stylesheet on project pages.
   Single source of truth per DESIGN.md:
   bg #fcfcfb · ink #1f1f1f · one accent · JetBrains Mono only. */

:root,
.light {
  --background: #fcfcfb;
  --bg-marketing: #fcfcfb;
  --bg-level-1: #f4f4f2;
  --bg-level-2: #efefec;
  --bg-level-3: #e9e9e6;

  --fg-primary: #1f1f1f;
  --fg-secondary: #3a3a3a;
  --fg-tertiary: rgba(31, 31, 31, 0.65);
  --fg-quaternary: rgba(31, 31, 31, 0.45);

  --border: rgba(31, 31, 31, 0.08);

  /* single accent — warm brick, used only for links,
     active chapter nav and key metrics */
  --brand: #b04a2f;

  /* one mono across the whole site */
  --font-berkeley-mono: "JetBrains Mono", ui-monospace, Menlo, monospace;

  /* collapse the old sans stack to Inter */
  --font-geist: "Inter", -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, sans-serif;
  --font-inter: "Inter", -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, sans-serif;
  --font-inter-tight: "Inter", -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, sans-serif;
}

body {
  background: var(--background);
  color: var(--fg-primary);
}