/* Tech Global Institute — Typography tokens
   Montserrat = display (slides/posters), Roboto = UI/web/social, Lato = long-form body. */

:root {
  /* ---- Families ---- */
  --font-display: 'Montserrat', system-ui, sans-serif;   /* headlines, bold, campaign */
  --font-ui:      'Roboto', system-ui, sans-serif;        /* web + product UI, social */
  --font-body:    'Lato', Georgia, system-ui, sans-serif; /* essays, policy briefs */
  --font-mono:    'Roboto Mono', ui-monospace, 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 */

  /* ---- Type scale (rem, 16px base) ---- */
  --text-xs:   0.75rem;   /* 12px */
  --text-sm:   0.875rem;  /* 14px */
  --text-base: 1rem;      /* 16px */
  --text-md:   1.125rem;  /* 18px */
  --text-lg:   1.375rem;  /* 22px */
  --text-xl:   1.75rem;   /* 28px */
  --text-2xl:  2.25rem;   /* 36px */
  --text-3xl:  3rem;      /* 48px */
  --text-4xl:  4rem;      /* 64px */

  /* ---- Line heights ---- */
  --leading-tight:   1.1;
  --leading-snug:    1.25;
  --leading-normal:  1.5;
  --leading-relaxed: 1.7;   /* long-form body */

  /* ---- Letter spacing ---- */
  --tracking-tight:  -0.02em;
  --tracking-normal: 0;
  --tracking-wide:   0.04em;
  --tracking-caps:   0.08em;  /* uppercase labels/eyebrows */

  /* ---- Semantic roles ---- */
  --role-display-font: var(--font-display);
  --role-heading-font: var(--font-ui);
  --role-body-font:    var(--font-body);
}