/* ============================================================
   Metrix — Typography
   ------------------------------------------------------------
   Sans / body  → Inter      (weights 400–900)
   Display      → Sora        (headings, metric values)
   Mono         → JetBrains Mono (numbers, code, tokens)

   The Brand System uses Inter throughout the landing; the live
   app adds Sora for display headings and JetBrains Mono for
   tabular/monospaced numerals. Scale is modular, base 16px.
============================================================ */
:root {
  /* Families */
  --font-sans:    'Inter', ui-sans-serif, system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-display: 'Sora', 'Inter', ui-sans-serif, system-ui, sans-serif;
  --font-mono:    'JetBrains Mono', ui-monospace, 'SFMono-Regular', monospace;

  /* Type scale (px) */
  --text-xs:    12px;
  --text-sm:    14px;
  --text-base:  16px;
  --text-lg:    18px;
  --text-xl:    20px;
  --text-2xl:   24px;
  --text-3xl:   30px;
  --text-4xl:   36px;
  --text-5xl:   48px;
  --text-6xl:   60px;
  /* Fluid display — hero / brand wordmark */
  --text-display: clamp(2.4rem, 7vw, 5.5rem);
  --text-h1:      clamp(2rem, 5vw, 3.5rem);

  /* Weights */
  --weight-regular:  400;
  --weight-medium:   500;
  --weight-semibold: 600;
  --weight-bold:     700;
  --weight-extra:    800;
  --weight-black:    900;

  /* Line heights */
  --leading-tight:   1.1;
  --leading-snug:    1.25;
  --leading-normal:  1.5;
  --leading-relaxed: 1.65;

  /* Letter spacing */
  --tracking-tight:  -0.03em;
  --tracking-snug:   -0.01em;
  --tracking-normal: 0em;
  --tracking-wide:   0.04em;
  --tracking-caps:   0.12em;  /* uppercase eyebrows / labels */
}