:root {
  --color-paper: oklch(98.3% 0.008 177);
  --color-paper-2: oklch(99.2% 0.003 177);
  --color-paper-3: oklch(95.5% 0.015 177);
  --color-ink: oklch(23.6% 0.018 177);
  --color-ink-2: oklch(35% 0.02 177);
  --color-muted: oklch(46% 0.025 177);
  --color-rule: oklch(87.8% 0.025 177);
  --color-accent: oklch(48.5% 0.105 177);
  --color-accent-deep: oklch(36% 0.082 177);
  --color-accent-soft: oklch(94.8% 0.027 177);
  --color-on-accent: oklch(99.2% 0.003 177);
  --color-accent-ink: var(--color-on-accent);
  --color-focus: oklch(36% 0.082 177);
  --color-success: oklch(45% 0.13 145);
  --color-success-bg: oklch(95.8% 0.03 145);
  --color-warning: oklch(47.28% 0.0988 77.36);
  --color-warning-bg: oklch(95.99% 0.0504 89.76);
  --color-error: oklch(41.02% 0.1395 25.88);
  --color-error-bg: oklch(97.13% 0.014 17.4);
  --color-disabled: oklch(72% 0.018 177);
  --color-disabled-bg: oklch(93.5% 0.01 177);

  /* Provider semantic palette: teal is reserved for action, focus and labelled positive data. */
  --color-provider-accent: var(--color-accent);
  --color-provider-deep: var(--color-accent-deep);
  --color-provider-soft: var(--color-accent-soft);
  --color-provider-paper: var(--color-paper);
  --color-provider-rule: var(--color-rule);
  --color-provider-on-accent: var(--color-on-accent);
  --color-provider-focus: var(--color-focus);
  --color-provider-warning: var(--color-warning);
  --color-provider-warning-bg: var(--color-warning-bg);

  --font-display: 'Iowan Old Style', 'Palatino Linotype', 'Book Antiqua', Georgia, serif;
  --font-body: 'Avenir Next', Avenir, 'Segoe UI', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', 'SFMono-Regular', Menlo, monospace;

  --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;

  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-md: 1.25rem;
  --text-lg: 1.5625rem;
  --text-xl: 1.9531rem;
  --text-2xl: 2.4414rem;
  --text-display: clamp(2.75rem, 4vw + 1rem, 4.75rem);

  --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: 420ms;

  --rule-hairline: 1px;
  --radius-control: 0.625rem;
  --radius-card: 1rem;
  --radius-pill: 999px;
  --shadow-raised: 0 0.75rem 2.5rem oklch(23.6% 0.018 177 / 0.08);
  --shadow-float: 0 1.5rem 4rem oklch(36% 0.082 177 / 0.1);
}