/* Hallmark tokens · theme: Cobalt (modern-minimal) */

:root {
  /* --- Paper band: cool light, ~98.5% L, hue 250 --- */
  --color-paper: oklch(98.5% 0.004 250);
  --color-paper-2: oklch(96% 0.007 250);
  --color-paper-3: oklch(93% 0.009 250);

  /* --- Rules / borders --- */
  --color-rule: oklch(88% 0.01 250);
  --color-rule-2: oklch(80% 0.013 250);

  /* --- Ink --- */
  --color-ink: oklch(24% 0.02 258);
  --color-ink-2: oklch(34% 0.018 257);
  --color-muted: oklch(48% 0.015 255);

  /* --- Accent: electric cobalt, single signal ---
     Three lightness steps exist because one hue can't clear 4.5:1 text contrast
     on both light paper and dark graphite — see contrast gates 40/41.
     --color-accent       58% — borders, focus rings, decorative marks, large/display text (needs 3:1)
     --color-accent-strong 50% — small accent TEXT on light paper (needs 4.5:1)
     --color-accent-bright 64% — small accent TEXT on the dark graphite band (needs 4.5:1) */
  --color-accent: oklch(58% 0.2 256);
  --color-accent-strong: oklch(50% 0.21 256);
  --color-accent-bright: oklch(64% 0.16 256);
  --color-accent-ink: oklch(98% 0.006 256);
  --color-focus: oklch(58% 0.2 256);

  /* --- The one dark graphite band --- */
  --color-graphite: oklch(22% 0.016 260);
  --color-graphite-2: oklch(27% 0.018 260);
  --color-graphite-ink: oklch(94% 0.008 250);
  --color-graphite-muted: oklch(70% 0.016 253);
  --color-graphite-rule: oklch(36% 0.02 260);

  /* --- Fonts: Space Grotesk display, Inter body, JetBrains Mono code --- */
  --font-display: "Space Grotesk", ui-sans-serif, system-ui, sans-serif;
  --font-body: "Inter", ui-sans-serif, system-ui, -apple-system, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;

  /* --- Scale: 1.25 major third, 16px base --- */
  --text-xs: 0.64rem;
  --text-sm: 0.8rem;
  --text-base: 1rem;
  --text-md: 1.25rem;
  --text-lg: 1.5625rem;
  --text-xl: 1.9531rem;
  --text-2xl: 2.4414rem;
  --text-3xl: 3.0518rem;
  --text-display-s: clamp(2.25rem, 4vw + 1rem, 3.4rem);
  --text-display: clamp(2.75rem, 6.5vw + 1rem, 5.5rem);

  /* --- Spacing: 4pt scale --- */
  --space-3xs: 0.25rem;
  --space-2xs: 0.5rem;
  --space-xs: 0.75rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-2xl: 4rem;
  --space-3xl: 6rem;
  --space-4xl: 8rem;

  /* --- Radii: ruler-drawn, technical --- */
  --radius-sm: 6px;
  --radius-md: 10px;

  /* --- Motion --- */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in: cubic-bezier(0.7, 0, 0.84, 0);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --dur-fast: 150ms;
  --dur-base: 320ms;
  --dur-slow: 600ms;

  /* --- Measure --- */
  --measure: 65ch;

  /* --- Derived overlay tones (kept as named tokens per the no-inline-colour rule) --- */
  --color-accent-soft: oklch(58% 0.2 256 / 0.35);
  --color-shadow: oklch(24% 0.02 258 / 0.08);
  --color-paper-translucent: oklch(98.5% 0.004 250 / 0.82);
}