@keyframes slide-up-fade-in {
  from { transform: translateY(1.5rem); opacity: 0; }
  to   { transform: translateY(0); opacity: 1; }
}

@keyframes appear-then-fade {
  0%, 100% { opacity: 0; }
  5%, 60%  { opacity: 1; }
}

@keyframes shake {
  0%  { transform: translateX(-2rem); }
  25% { transform: translateX(2rem); }
  50% { transform: translateX(-1rem); }
  75% { transform: translateX(1rem); }
}

/* Scroll-reveal: elements start invisible, JS adds [data-revealed] */
[data-scroll-reveal] {
  opacity: 0;
  transform: translateY(1.5rem);
}

[data-scroll-reveal][data-revealed] {
  animation: slide-up-fade-in 500ms ease forwards;
}

@media (prefers-reduced-motion: reduce) {
  [data-scroll-reveal] {
    opacity: 1;
    transform: none;
  }

  [data-scroll-reveal][data-revealed] {
    animation: none;
  }
}