/* ============================================================
   SterlingCraft — Spacing, radius, shadow, motion
   Restrained, architectural geometry: modest radii, warm
   brown-tinted shadows (never neutral grey), unhurried easing.
   ============================================================ */

: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: 5rem;     /* 80 */
  --space-12: 7rem;     /* 112 */
  --space-16: 10rem;    /* 160 */

  /* ---- Radii — kept tight & crafted ---------------------- */
  --radius-xs: 2px;
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 10px;
  --radius-xl: 16px;
  --radius-pill: 999px;
  --radius-circle: 50%;

  /* ---- Borders ------------------------------------------- */
  --border-hairline: 1px;
  --border-regular: 1.5px;
  --border-heavy: 2px;

  /* ---- Warm shadows (brown-tinted, low elevation) -------- */
  --shadow-xs: 0 1px 2px rgba(38, 26, 15, 0.08);
  --shadow-sm: 0 1px 3px rgba(38, 26, 15, 0.10), 0 1px 2px rgba(38, 26, 15, 0.06);
  --shadow-md: 0 4px 10px rgba(38, 26, 15, 0.10), 0 2px 4px rgba(38, 26, 15, 0.06);
  --shadow-lg: 0 12px 28px rgba(38, 26, 15, 0.14), 0 4px 10px rgba(38, 26, 15, 0.08);
  --shadow-xl: 0 24px 56px rgba(38, 26, 15, 0.18);
  /* Pressed / inset — a letterpress feel */
  --shadow-inset: inset 0 1px 2px rgba(38, 26, 15, 0.14);

  /* ---- Motion -------------------------------------------- */
  --ease-standard: cubic-bezier(0.22, 0.61, 0.36, 1); /* @kind other */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1); /* @kind other */
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1); /* @kind other */
  --dur-fast: 120ms; /* @kind other */
  --dur-base: 200ms; /* @kind other */
  --dur-slow: 360ms; /* @kind other */

  /* ---- Layout -------------------------------------------- */
  --container-sm: 640px;
  --container-md: 880px;
  --container-lg: 1120px;
  --container-xl: 1320px;
}