/* ============================================================
   STABLY — SPACING, RADIUS, SHADOW, MOTION TOKENS
   ============================================================ */
:root {
  /* ---- Spacing (4px base grid) ---- */
  --space-0: 0;
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;
  --space-12: 48px;
  --space-16: 64px;
  --space-20: 80px;
  --space-24: 96px;

  /* ---- Radii ---- */
  --radius-xs: 4px;
  --radius-sm: 6px;
  --radius-md: 10px;   /* default control radius */
  --radius-lg: 14px;   /* cards */
  --radius-xl: 20px;   /* panels / hero */
  --radius-pill: 999px;

  /* ---- Shadows — soft, cool-tinted, never harsh ---- */
  --shadow-xs: 0 1px 2px rgba(15, 23, 42, 0.06);
  --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.08), 0 1px 2px rgba(15, 23, 42, 0.04);
  --shadow-md: 0 4px 12px rgba(15, 23, 42, 0.08), 0 2px 4px rgba(15, 23, 42, 0.04);
  --shadow-lg: 0 12px 28px rgba(15, 23, 42, 0.12), 0 4px 8px rgba(15, 23, 42, 0.06);
  --shadow-xl: 0 24px 48px rgba(15, 23, 42, 0.16);
  --shadow-focus-accent: 0 6px 16px rgba(94, 155, 255, 0.32);

  /* ---- Motion ---- */
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);          /* @kind other */
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);       /* @kind other */
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);    /* @kind other */
  --dur-fast: 120ms;    /* @kind other */
  --dur-base: 200ms;    /* @kind other */
  --dur-slow: 360ms;    /* @kind other */
}