/* HTF Active Puzzle Highlight v2
   - Only the active puzzle card gets a subtle green glow.
   - Non-active cards keep their original styling (no forced green).
*/
:root{ --htf-active-glow: rgba(57,217,138,.22); }

.htf-card.htf-is-active{
  box-shadow: 0 0 0 2px var(--htf-active-glow) inset, 0 0 24px rgba(57,217,138,.10);
}

/* Optional: if a card is solved, keep its solved glow (from htf-puzzle-stats CSS) */