/* Navegação entre páginas sem alterar layout: apenas fade de entrada. */
body > main,
.virtual-piano-workspace .virtual-intro {
  animation: page-fade-in .18s ease-out both;
}
.feature-link { transition: background .18s, border-color .18s, transform .18s, box-shadow .18s; }
.feature-link:hover { transform: translateY(-3px); box-shadow: 0 6px 18px #3f503914; }
.feature-link:active, .feature-link.is-entering { transform: scale(.98); }
@keyframes page-fade-in {
  from { opacity: 0; }
  to { opacity: 1; }
}
@media (prefers-reduced-motion: reduce) {
  .feature-link { transition: none; }
  .feature-link:hover, .feature-link:active { transform: none; }
  body > main,
  .virtual-piano-workspace .virtual-intro {
    animation: none;
  }
}