Drill 25: Trade-off — Transforms and keyframes

@keyframes pop-in {
  from {
    opacity: 0;
    transform: translateY(12px) scale(0.96);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.card {
  animation: pop-in 320ms cubic-bezier(0.22, 1, 0.36, 1) both;
}

.spinner {
  animation: spin 900ms linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

@media (prefers-reduced-motion: reduce) {
  .card,
  .spinner {
    animation: none;
  }
}