:root {
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-24: 6rem;

  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-md: 1.125rem;
  --text-lg: 1.375rem;
  --text-xl: 1.75rem;
  --text-2xl: 2.25rem;
  --text-3xl: 3rem;

  --radius-sm: 4px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 20px;
  --radius-full: 9999px;

  --lh-body: 1.65;
  --lh-heading: 1.15;
  --lh-ui: 1.4;

  --measure: 68ch;

  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --dur-fast: 150ms;
  --dur-med: 250ms;
  --dur-slow: 400ms;

  --font-serif: "Fraunces", Georgia, "Times New Roman", serif;
  --font-body: "Atkinson Hyperlegible", ui-sans-serif, system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Consolas, monospace;

  /* Pop néo-rétro — couleur signature corail brûlé, accents quartet rétro */
  --accent: oklch(70% 0.18 30);
  --accent-strong: oklch(62% 0.18 30);
  --accent-soft: oklch(94% 0.04 30);

  --warm: oklch(88% 0.13 95);
  --warm-soft: oklch(96% 0.04 95);
  --cool: oklch(50% 0.18 245);
  --cool-soft: oklch(94% 0.03 245);
  --nature: oklch(65% 0.13 145);
  --nature-soft: oklch(94% 0.04 145);

  --success: oklch(65% 0.13 145);
  --success-soft: oklch(94% 0.04 145);
  --danger: oklch(55% 0.18 25);
  --danger-soft: oklch(94% 0.04 25);
  --warning: oklch(85% 0.13 85);

  /* Neutres ivoire-sable, hue chaud 75 */
  --bg: oklch(96% 0.012 75);
  --bg-soft: oklch(99% 0.008 75);
  --border: oklch(88% 0.012 75);
  --text-muted: oklch(50% 0.015 60);
  --text: oklch(22% 0.015 60);
  --text-strong: oklch(12% 0.015 60);

  --shadow-card: 0 4px 20px -8px oklch(0% 0 0 / 0.10);
  --shadow-pressed: inset 0 2px 4px oklch(0% 0 0 / 0.08);
  --shadow-lift: 0 6px 24px -10px oklch(0% 0 0 / 0.14);

  color-scheme: light;
}