:root {
  /* Spacing scale (4px base) */
  --space-0: 0;
  --space-1: 0.25rem;  /* 4 */
  --space-2: 0.5rem;   /* 8 */
  --space-3: 0.75rem;  /* 12 */
  --space-4: 1rem;     /* 16 */
  --space-5: 1.5rem;   /* 24 */
  --space-6: 2rem;     /* 32 */
  --space-7: 2.5rem;   /* 40 */
  --space-8: 3rem;     /* 48 */
  --space-9: 4rem;     /* 64 */
  --space-10: 6rem;    /* 96 */

  /* Radii — soft, hospitable */
  --radius-xs: 3px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-pill: 999px;

  /* Borders */
  --border-hairline: 1px;
  --border-thin: 1.5px;
  --border-thick: 2px;

  /* Shadows — warm brown-tinted, low & soft */
  --shadow-xs: 0 1px 2px rgba(43,26,12,0.06);
  --shadow-sm: 0 2px 6px rgba(43,26,12,0.08);
  --shadow-md: 0 8px 20px rgba(43,26,12,0.10);
  --shadow-lg: 0 18px 40px rgba(43,26,12,0.14);
  --shadow-inset: inset 0 1px 2px rgba(43,26,12,0.08);

  /* Motion */
  --ease-standard: cubic-bezier(0.4, 0, 0.2, 1); /* @kind other */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1); /* @kind other */
  --dur-fast: 140ms; /* @kind other */
  --dur-base: 240ms; /* @kind other */
  --dur-slow: 420ms; /* @kind other */

  /* Layout */
  --container-max: 1200px;
  --container-narrow: 760px;
}