/* ============================================================
   helomi — Spacing, radii, borders, shadows, motion
   The brand's defining visual device is the logo's thick black
   outline. The "sticker" tokens below encode that: a hard black
   border with a small solid offset shadow (no blur). Soft shadows
   are also provided for lighter UI surfaces.
   ============================================================ */
:root {
  /* ---- Spacing (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: 7.5rem;  /* 120 */

  /* ---- Radii (rounded + friendly, echoing the logo) ---- */
  --radius-xs: 6px;
  --radius-sm: 10px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-2xl: 36px;
  --radius-pill: 999px;
  --radius-circle: 50%;

  /* ---- Borders ---- */
  --border-thin: 1px;
  --border-base: 1.5px;
  --border-thick: 2px;
  --border-ink: 3px;   /* the signature sticker outline weight */
  --border-color: var(--color-border);
  --border-ink-color: var(--color-ink);

  /* ---- Soft shadows (UI surfaces) ---- */
  --shadow-xs: 0 1px 2px rgba(56, 42, 37, 0.08);
  --shadow-sm: 0 2px 6px rgba(56, 42, 37, 0.10);
  --shadow-md: 0 6px 18px rgba(56, 42, 37, 0.12);
  --shadow-lg: 0 16px 40px rgba(56, 42, 37, 0.16);

  /* ---- Sticker shadows (hard offset, brand signature) ---- */
  --shadow-sticker-sm: 2px 2px 0 var(--color-ink);
  --shadow-sticker:    4px 4px 0 var(--color-ink);
  --shadow-sticker-lg: 6px 6px 0 var(--color-ink);
  /* peach-tinted variant for accent surfaces */
  --shadow-sticker-peach: 4px 4px 0 var(--peach-600);

  /* ---- 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-bounce: 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 */

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