/* Boréal Acquisition — spacing, radii, elevation, layout & motion tokens.
   Spacing on a 4/8 base. Soft shadows only — never a permanent glow. */
:root {
  /* ---- Spacing scale (4/8 base) ---- */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 64px;
  --space-9: 96px;

  /* ---- Radii ---- buttons/fields 10–12, cards 16–20 */
  --radius-xs: 6px;
  --radius-sm: 10px;    /* buttons, inputs, selects */
  --radius-md: 12px;    /* larger controls */
  --radius-lg: 18px;    /* cards */
  --radius-xl: 24px;    /* feature panels */
  --radius-pill: 999px; /* badges, tags */

  /* ---- Elevation (soft, cool-tinted) ---- */
  --shadow-xs: 0 1px 2px rgba(11, 16, 32, 0.06);
  --shadow-sm: 0 2px 8px rgba(11, 16, 32, 0.06);
  --shadow-md: 0 10px 28px rgba(11, 16, 32, 0.08);
  --shadow-lg: 0 24px 56px rgba(11, 16, 32, 0.12);
  --shadow-focus: 0 0 0 3px rgba(45, 212, 191, 0.45); /* aurora focus ring */

  /* ---- Layout ---- */
  --container-max: 1200px;
  --container-pad: clamp(20px, 5vw, 48px);
  --section-gap: clamp(56px, 8vw, 96px);
  --grid-cols-desktop: 12; /* @kind other */
  --grid-cols-tablet: 8; /* @kind other */
  --grid-cols-mobile: 4; /* @kind other */

  /* ---- Breakpoints (reference values) ---- */
  --bp-sm: 640px;
  --bp-md: 768px;
  --bp-lg: 1024px;
  --bp-xl: 1280px;

  /* ---- Motion — micro-interactions 150–250ms, soft curves ---- */
  --ease-standard: cubic-bezier(0.2, 0, 0, 1); /* @kind other */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1); /* @kind other */
  --duration-fast: 150ms; /* @kind other */
  --duration-base: 220ms; /* @kind other */
  --transition-standard: 220ms cubic-bezier(0.2, 0, 0, 1); /* @kind other */
}

@media (prefers-reduced-motion: reduce) {
  :root {
    --transition-standard: 0ms; /* @kind other */
    --duration-fast: 0ms; /* @kind other */
    --duration-base: 0ms; /* @kind other */
  }
}