/* PMA Science University — design tokens. Single source of truth.
   Nothing in the build uses a raw hex, px font size or arbitrary margin. */

:root {
  /* Colour */
  --pma-navy-900: #0b1b33;
  --pma-navy-800: #132844;
  --pma-navy-600: #2a4667;
  --pma-ink: #141a22;
  --pma-ink-muted: #4a5462;
  --pma-gold-500: #b08d3f;
  --pma-gold-300: #f0ce73; /* official mark gold — used on navy grounds only */
  --pma-ivory: #fbf8f2;
  --pma-stone-100: #f1ede5;
  --pma-stone-300: #ded7c9;
  --pma-white: #ffffff;
  --pma-success: #2f6b4f;
  --pma-warning: #8a6416;
  --pma-error: #8c2f26;

  /* Type families */
  --pma-serif: 'Newsreader', 'Iowan Old Style', Georgia, serif;
  --pma-sans: 'Archivo', 'Helvetica Neue', Arial, sans-serif;

  /* Type scale */
  --fs-display: clamp(2.5rem, 1.6rem + 3.2vw, 4.25rem);
  --fs-h1: clamp(2rem, 1.5rem + 2vw, 3rem);
  --fs-h2: clamp(1.5rem, 1.3rem + 0.9vw, 2rem);
  --fs-h3: clamp(1.25rem, 1.15rem + 0.5vw, 1.5rem);
  --fs-lede: clamp(1.125rem, 1.05rem + 0.4vw, 1.375rem);
  --fs-body: 1.0625rem;
  --fs-sm: 0.9375rem;
  --fs-xs: 0.8125rem;

  /* Spacing */
  --s-1: 0.25rem;
  --s-2: 0.5rem;
  --s-3: 0.75rem;
  --s-4: 1rem;
  --s-5: 1.5rem;
  --s-6: 2rem;
  --s-7: 3rem;
  --s-8: 4rem;
  --s-9: 6rem;
  --s-10: 8rem;
  --section-y: clamp(var(--s-7), 4vw + 1rem, var(--s-10));

  /* Layout */
  --container: 1240px;
  --container-wide: 1440px;
  --container-prose: 760px;
  --gutter: clamp(1rem, 4vw, 2.5rem);
  --measure: 68ch;

  /* Border, radius, elevation */
  --radius-sm: 2px;
  --radius-md: 4px;
  --radius-pill: 999px;
  --hairline: 1px solid var(--pma-stone-300);
  --hairline-dark: 1px solid var(--pma-navy-600);
  --shadow-card: 0 1px 2px rgba(11, 27, 51, 0.06), 0 8px 24px rgba(11, 27, 51, 0.06);
  --shadow-overlay: 0 12px 40px rgba(11, 27, 51, 0.18);

  /* Motion */
  --ease: cubic-bezier(0.2, 0.6, 0.2, 1);
  --dur-fast: 140ms;
  --dur: 220ms;
  --dur-slow: 420ms;
}