.lang-fade {
  opacity: 1;
  transition: opacity 0.2s ease;
}
.lang-fade.fading { opacity: 0; }

.reveal {
  opacity: 0; transform: translateY(32px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}
.reveal.revealed { opacity: 1; transform: translateY(0); }