/* piano page: hide computer-keyboard help on touch-only devices */
@media (hover: none) and (pointer: coarse) {
  #piano [data-hints], #piano .piano-keyhelp { display: none; }
}
@media (max-width: 640px) {
  #piano .row { gap: 6px; }
  #piano label.field select { min-height: 36px; }
}