/* ===========================================================================
   SPACING · RADII · SHADOWS · BORDERS · MOTION
   =========================================================================== */
:root {
  /* 4px base spacing scale */
  --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: 3rem;     /* 48 */
  --space-8: 4rem;     /* 64 */
  --space-9: 6rem;     /* 96 */

  /* Radii — soft, friendly, never pill-everything */
  --radius-xs: 4px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-xl: 28px;
  --radius-pill: 999px;
  --radius-circle: 50%;

  /* Shadows — soft warm ink, low spread (editorial, not material) */
  --shadow-xs: 0 1px 2px rgba(33,31,31,0.06);
  --shadow-sm: 0 2px 6px rgba(33,31,31,0.07);
  --shadow-md: 0 6px 18px rgba(33,31,31,0.09);
  --shadow-lg: 0 16px 40px rgba(33,31,31,0.13);
  --shadow-card: 0 2px 0 var(--ink-200), 0 10px 24px rgba(33,31,31,0.08);
  --ring-focus: 0 0 0 3px var(--sky-200);

  /* Borders */
  --border-1: 1px;
  --border-2: 1.5px;
  --border-3: 2.5px;

  /* Motion — quick, a touch of bounce (playful, never sluggish) */
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);   /* @kind other */
  --ease-bounce: cubic-bezier(0.34, 1.56, 0.64, 1); /* @kind other */
  --dur-fast: 120ms; /* @kind other */
  --dur-med: 220ms;  /* @kind other */
  --dur-slow: 380ms; /* @kind other */

  /* Layout */
  --container: 1200px;
  --container-narrow: 720px;
}