/* ============================================================
   Checkpoint — Typography tokens
   Body/UI/display: Geist · Telemetry/IDs/metrics: Geist Mono
   Scale (rem): Display 2.5 / H1 2.0 / H2 1.5 / H3 1.25 /
                Body .9375 / Small .8125 / Caption-mono .75
   ============================================================ */
:root {
  --font-sans: 'Geist', ui-sans-serif, system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'Geist Mono', ui-monospace, 'SFMono-Regular', 'JetBrains Mono', 'IBM Plex Mono', monospace;

  /* weights */
  --fw-light: 300; /* @kind font */
  --fw-regular: 400; /* @kind font */
  --fw-medium: 500; /* @kind font */
  --fw-semibold: 600; /* @kind font */
  --fw-bold: 700; /* @kind font */
  --fw-extrabold: 800; /* @kind font */

  /* sizes */
  --fs-display: 2.5rem;     /* 40 */
  --fs-h1: 2rem;            /* 32 */
  --fs-h2: 1.5rem;          /* 24 */
  --fs-h3: 1.25rem;         /* 20 */
  --fs-lg: 1.0625rem;       /* 17 */
  --fs-body: 0.9375rem;     /* 15 */
  --fs-small: 0.8125rem;    /* 13 */
  --fs-caption: 0.75rem;    /* 12 — mono captions, IDs, badges */
  --fs-micro: 0.6875rem;    /* 11 — overline labels */

  /* line-heights */
  --lh-display: 1.05; /* @kind font */
  --lh-heading: 1.2; /* @kind font */
  --lh-body: 1.5; /* @kind font */
  --lh-mono: 1.45; /* @kind font */

  /* tracking */
  --tracking-tight: -0.02em; /* @kind font */
  --tracking-snug: -0.01em; /* @kind font */
  --tracking-normal: 0; /* @kind font */
  --tracking-wide: 0.02em; /* @kind font */
  --tracking-caps: 0.08em; /* @kind font */

  /* numerics — always tabular so digits don't jitter */
  --nums-tabular: tabular-nums; /* @kind font */
}

/* Global base so every consuming surface inherits the right defaults */
:root {
  color-scheme: dark;
}
body {
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  color: var(--text-body);
  background: var(--bg-app);
  font-feature-settings: 'cv01', 'ss01';
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* Utility-ish primitives consumers can lean on */
.ck-mono { font-family: var(--font-mono); font-variant-numeric: var(--nums-tabular); }
.ck-tabular { font-variant-numeric: var(--nums-tabular); }
.ck-overline {
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: var(--tracking-caps);
  text-transform: uppercase;
  color: var(--text-muted);
}