html, body {
  font-family: "IBM Plex Sans", system-ui, -apple-system, sans-serif;
  -webkit-tap-highlight-color: transparent;
}

.btm-nav button, .btn, button {
  touch-action: manipulation;
}

/* details summary ohne Default-Marker */
details > summary {
  list-style: none;
}
details > summary::-webkit-details-marker {
  display: none;
}