/* ============================================================
   KRONOS SCIENTIFICA — TYPOGRAPHY TOKENS
   Display/brand: Montserrat (geometric — titles & headings)
   Body/UI:       Helvetica (clean neutral — paragraphs & UI)
   Mono/data:     IBM Plex Mono (timestamps, readouts, code)
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@400;500;600;700&family=IBM+Plex+Mono:wght@400;500;600&display=swap');

:root {
  /* ---- Families ---- */
  --font-display: 'Montserrat', 'Helvetica Neue', Arial, sans-serif;
  --font-body:    'Helvetica Neue', Helvetica, Arial, system-ui, sans-serif;
  --font-mono:    'IBM Plex Mono', ui-monospace, 'SF Mono', monospace;

  /* ---- Type scale (1.250 major-third-ish, tuned) ---- */
  --text-2xs:  11px;
  --text-xs:   12px;
  --text-sm:   14px;
  --text-base: 16px;
  --text-md:   18px;
  --text-lg:   21px;
  --text-xl:   26px;
  --text-2xl:  32px;
  --text-3xl:  40px;
  --text-4xl:  52px;
  --text-5xl:  66px;
  --text-6xl:  84px;

  /* ---- Weights ---- */
  --weight-regular:  400;
  --weight-medium:   500;
  --weight-semibold: 600;
  --weight-bold:     700;

  /* ---- Line heights ---- */
  --leading-tight:   1.08;
  --leading-snug:    1.25;
  --leading-normal:  1.5;
  --leading-relaxed: 1.65;

  /* ---- Letter spacing ---- */
  --tracking-tight:  -0.02em;
  --tracking-snug:   -0.01em;
  --tracking-normal: 0;
  --tracking-wide:   0.04em;
  --tracking-caps:   0.12em;  /* eyebrows / overlines */

  /* ---- Semantic roles ---- */
  --font-heading: var(--font-display);
  --font-eyebrow: var(--font-mono);
}