/* ============================================
   ANIMATIONS — Keyframes & reveal classes
   ============================================ */

/* ---- Keyframes ---- */
@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.5;
    transform: scale(1.4);
  }
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateX(-16px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* ---- Reveal classes ---- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity var(--transition-slow), transform var(--transition-spring);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger delays for grouped elements */
.stagger-1 { transition-delay: 0ms; }
.stagger-2 { transition-delay: 80ms; }
.stagger-3 { transition-delay: 160ms; }
.stagger-4 { transition-delay: 240ms; }
.stagger-5 { transition-delay: 320ms; }
.stagger-6 { transition-delay: 400ms; }

/* Prefers reduced motion — respect user preference */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}