/* Tooltip styling */
#tooltip {
  position: absolute;
  z-index: 50;
  background-color: rgba(55, 65, 81, 0.9); /* Tailwind gray-700 */
  color: #fff;
  padding: 0.5rem;
  border-radius: 0.375rem;
  font-size: 0.875rem;
  pointer-events: none;
  display: none;
}