/* ============================================================
   AI BUSINESS SOCIETY — TYPOGRAPHY TOKENS
   ============================================================ */

:root {
  /* ---- Families ------------------------------------------ */
  --font-display: 'Zilla Slab', 'Roboto Slab', Georgia, serif;
  --font-sans:    'Mulish', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-mono:    'JetBrains Mono', ui-monospace, 'SFMono-Regular', monospace;

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

  /* ---- Fluid type scale (1.250 major-third-ish) ---------- */
  --text-3xs: 0.6875rem;  /* 11px — legal / overline tiny */
  --text-2xs: 0.75rem;    /* 12px — labels, captions */
  --text-xs:  0.8125rem;  /* 13px */
  --text-sm:  0.9375rem;  /* 15px — secondary body */
  --text-md:  1.0625rem;  /* 17px — BASE body */
  --text-lg:  1.25rem;    /* 20px — lead paragraph */
  --text-xl:  1.5rem;     /* 24px — h4 */
  --text-2xl: 1.9375rem;  /* 31px — h3 */
  --text-3xl: 2.5rem;     /* 40px — h2 */
  --text-4xl: 3.25rem;    /* 52px — h1 */
  --text-5xl: 4.25rem;    /* 68px — hero */
  --text-6xl: 5.5rem;     /* 88px — display / numerals */

  /* ---- Line heights -------------------------------------- */
  --leading-tight:  1.05;
  --leading-snug:   1.2;
  --leading-normal: 1.5;
  --leading-relaxed:1.65;

  /* ---- Letter spacing ------------------------------------ */
  --tracking-tight:  -0.02em;
  --tracking-normal: 0;
  --tracking-wide:   0.04em;
  --tracking-wider:  0.12em;   /* overlines / eyebrows / signage */

  /* ---- Semantic roles ------------------------------------ */
  --role-eyebrow-font: var(--font-display);
  --role-eyebrow-size: var(--text-2xs);
  --role-eyebrow-weight: var(--weight-bold);
  --role-eyebrow-tracking: var(--tracking-wider);

  --role-display-font: var(--font-display);
  --role-display-weight: var(--weight-bold);

  --role-heading-font: var(--font-display);
  --role-heading-weight: var(--weight-semibold);

  --role-body-font: var(--font-sans);
  --role-body-size: var(--text-md);
  --role-body-leading: var(--leading-relaxed);

  --role-mono-font: var(--font-mono);
}