/* ==========================================================================
   Animations — reveal au scroll et micro-interactions
   ========================================================================== */

[data-reveal] {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
  will-change: opacity, transform;
}

[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

[data-reveal="fade"] {
  transform: none;
}

[data-reveal-group] > * {
  transition-delay: calc(var(--reveal-index, 0) * 90ms);
}

@keyframes float-soft {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

.float-soft {
  animation: float-soft 6s ease-in-out infinite;
}

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

.spin-slow {
  animation: spin-slow 28s linear infinite;
}

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

  .float-soft,
  .spin-slow {
    animation: none;
  }
}