/* ============================================================
   Aurora — Spacing, radii, elevation
   ------------------------------------------------------------
   Base unit = 4px. Core Figma steps: xs 4 · s 8 · l 16.
   Radii follow the product: 8px (promo/inner), 16px (cards),
   24/48px (pills & buttons), 50% (icon chips & avatars).
   ============================================================ */

:root {
  /* ---- Spacing scale (4px base) --------------------------- */
  --space-0:  0;
  --space-1:  4px;    /* xs */
  --space-2:  8px;    /* s  */
  --space-3:  12px;
  --space-4:  16px;   /* l — default gutter */
  --space-5:  20px;
  --space-6:  24px;
  --space-8:  32px;
  --space-10: 40px;
  --space-12: 48px;
  --space-16: 64px;

  /* ---- Radii ---------------------------------------------- */
  --radius-xs:   4px;
  --radius-sm:   8px;    /* promo cards, inner tiles */
  --radius-md:   12px;
  --radius-lg:   16px;   /* primary cards / widgets */
  --radius-xl:   24px;
  --radius-pill: 48px;   /* buttons */
  --radius-full: 999px;  /* icon chips, avatars, indicators */

  /* ---- Hit targets ---------------------------------------- */
  --tap-min:    44px;    /* minimum touch target */
  --chip-size:  40px;    /* nav / icon button */
  --chip-lg:    48px;    /* quick-action button */

  /* ---- Elevation (dark UI uses soft, low-contrast shadows) */
  --shadow-card: 0 1px 2px rgba(0, 0, 0, 0.24), 0 4px 16px rgba(0, 0, 0, 0.28);
  --shadow-pop:  0 8px 28px rgba(0, 0, 0, 0.40);
  --shadow-inner-glow: inset 0 0 0 1px rgba(153, 204, 255, 0.10);

  /* ---- Motion --------------------------------------------- */
  --ease-standard: cubic-bezier(0.2, 0, 0, 1);     /* @kind other */ /* enter / move */
  --ease-emphasis: cubic-bezier(0.3, 0, 0, 1);     /* @kind other */
  --duration-fast: 120ms; /* @kind other */
  --duration-base: 200ms; /* @kind other */
  --duration-slow: 320ms; /* @kind other */
}