/* ── Animations d'entrée au scroll (fade-in-up) ── */
.reveal-on-scroll {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .6s cubic-bezier(0.16, 1, 0.3, 1),
              transform .6s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}

.reveal-on-scroll.revealed {
  opacity: 1;
  transform: translateY(0);
}

/* Variante : glissement latéral (optionnel, classe additionnelle) */
.reveal-on-scroll.reveal-left {
  transform: translateX(-24px);
}
.reveal-on-scroll.reveal-left.revealed {
  transform: translateX(0);
}

.reveal-on-scroll.reveal-right {
  transform: translateX(24px);
}
.reveal-on-scroll.reveal-right.revealed {
  transform: translateX(0);
}

/* Respect des préférences d'accessibilité */
@media (prefers-reduced-motion: reduce) {
  .reveal-on-scroll {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }
}