:root{
  /* product-UI shadows: wide, low-opacity, no colour tint */
  --shadow-card:0 1px 2px rgba(15,23,32,.04), 0 8px 24px rgba(15,23,32,.06);
  --shadow-float:0 2px 6px rgba(15,23,32,.06), 0 18px 44px rgba(15,23,32,.10);
  --shadow-inset-hairline:inset 0 0 0 1px var(--hairline);
  /* editorial blocks carry no shadow at all */
  --shadow-none:none;
}