/* Shared behavioural polish — v0.28. Visual design remains locked. */
body{opacity:1}
.bottom .nav{-webkit-tap-highlight-color:transparent}
.bottom .nav:active{transform:scale(.97)}
@media (prefers-reduced-motion:no-preference){
  .glass{animation:pf-rise .42s ease both}
  .glass:nth-of-type(2){animation-delay:.035s}
  .glass:nth-of-type(3){animation-delay:.07s}
  @keyframes pf-rise{from{opacity:.82;transform:translateY(5px)}to{opacity:1;transform:none}}
}