/* Hallmark · tokens · theme: studied-DNA (source: image — FuseBase homepage, public reference)
 * paper: white · ink: petrol oklch(26% 0.05 220) · accent: mint oklch(87% 0.07 190), on petrol only
 * type: Inter (display + body, one family) · JetBrains Mono (code) · Caveat (hand annotations, dark band only)
 * axes: light / grotesk-sans / cool
 */

:root {
  /* Paper & surfaces — white page, cool-grey cards */
  --color-paper: oklch(100% 0 0);
  --color-surface: oklch(97.4% 0.004 240);
  --color-surface-2: oklch(95% 0.007 230);
  --color-rule: oklch(92% 0.007 230);
  --color-rule-2: oklch(86% 0.012 225);

  /* Ink — petrol-tinted neutrals */
  --color-ink: oklch(21% 0.025 225);
  --color-ink-2: oklch(36% 0.022 225);
  --color-muted: oklch(50% 0.018 225);

  /* Petrol — the brand colour: button fill, dark bands */
  --color-petrol: oklch(26% 0.05 220);
  --color-petrol-hover: oklch(33% 0.06 215);
  --color-petrol-2: oklch(31% 0.05 218);
  --color-petrol-rule: oklch(40% 0.045 215);
  --color-petrol-deep: oklch(17% 0.03 215);
  --color-on-petrol: oklch(97% 0.008 200);
  --color-on-petrol-muted: oklch(78% 0.025 205);

  /* Mint — the one signal, only ever on petrol */
  --color-mint: oklch(87% 0.07 190);
  --color-mint-hover: oklch(91% 0.06 190);

  /* Teal — the accent's light-surface voice (dots, links, focus) */
  --color-teal: oklch(50% 0.09 200);
  --color-teal-wash: oklch(96% 0.02 195);
  --color-focus: oklch(50% 0.09 200);
  --color-focus-on-petrol: oklch(87% 0.07 190);

  /* Status chips — mirror the product's contact states */
  --color-ok: oklch(52% 0.12 160);
  --color-ok-wash: oklch(95% 0.04 160);
  --color-warn: oklch(55% 0.12 70);
  --color-warn-wash: oklch(95.5% 0.045 85);
  --color-bad: oklch(53% 0.16 20);
  --color-bad-wash: oklch(95.5% 0.03 20);

  /* Overlays (modifiers, not palette) */
  --color-scrim: oklch(21% 0.025 225 / 0.45);
  --color-shadow: oklch(26% 0.05 220 / 0.08);
  --color-shadow-strong: oklch(17% 0.03 215 / 0.35);
  --color-nav-frost: oklch(100% 0 0 / 0.85);

  /* Type */
  --font-display: "Inter", ui-sans-serif, system-ui, sans-serif;
  --font-body: "Inter", ui-sans-serif, system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SFMono-Regular", monospace;
  --font-hand: "Caveat", "Segoe Print", cursive;

  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-md: 1.125rem;
  --text-lg: 1.375rem;
  --text-h2: clamp(1.875rem, 2.2vw + 1.1rem, 2.75rem);
  --text-display: clamp(2.375rem, 3.6vw + 1.2rem, 4rem);

  /* 4pt spacing scale */
  --space-3xs: 0.125rem;
  --space-2xs: 0.25rem;
  --space-xs: 0.5rem;
  --space-sm: 0.75rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2.5rem;
  --space-2xl: 4rem;
  --space-3xl: 6rem;
  --space-4xl: 8rem;

  /* Layout */
  --page-max: 76rem;
  --page-gutter: clamp(1rem, 4vw, 2.5rem);
  --nav-h: 4rem;

  /* Radii */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-pill: 999px;

  /* Rules */
  --rule-1: 1px solid var(--color-rule);
  --rule-2: 1px solid var(--color-rule-2);
  --rule-petrol: 1px solid var(--color-petrol-rule);

  /* 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-micro: 120ms;
  --dur-short: 220ms;
  --dur-long: 560ms;

  /* Z scale */
  --z-base: 1;
  --z-raised: 10;
  --z-sticky: 200;
  --z-modal: 400;
}