/* Opacity only: no sliding, resizing, or replay on live score refreshes. */
@keyframes page-arrive {
  from { opacity: .65; }
  to { opacity: 1; }
}
@keyframes games-ready {
  from { opacity: .72; }
  to { opacity: 1; }
}
@media (prefers-reduced-motion: no-preference) {
  .site-shell { animation: page-arrive 240ms ease-out both; }
  #games-grid[aria-busy="false"] { animation: games-ready 280ms ease-out both; }
}
/* Content remains visible if JavaScript fails or motion is disabled. */
@media (prefers-reduced-motion: reduce) {
  .site-shell, #games-grid { animation: none; }
}