/* iPhone footer stability: centre without a persistent transform so Safari
   cannot leave the bar attached to the keyboard's former visual viewport. */
.nav{
  position:fixed!important;
  top:auto!important;
  right:0!important;
  bottom:0!important;
  left:0!important;
  width:min(480px,100vw)!important;
  margin:0 auto!important;
  transform:none!important;
}
@media(max-width:768px),(pointer:coarse){
  body.meusKeyboardOpen .nav{
    opacity:0!important;
    visibility:hidden!important;
    pointer-events:none!important;
    transform:translateY(120%)!important;
  }
}