/* Reveal sobres (MOT-4 texte masque montant). Anti-scroll-X : VERTICAL uniquement. */

[data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .7s ease, transform .7s ease;
  transition-delay: var(--reveal-delay, 0ms);
  will-change: transform, opacity;
}
[data-reveal].in {
  opacity: 1;
  transform: none;
}

/* Texte masque montant (MOT-4) : sur h1 hero ou h2 section-head */
.reveal-mask {
  display: inline-block;
  overflow: hidden;
  vertical-align: bottom;
}
.reveal-mask > span {
  display: inline-block;
  transform: translateY(110%);
  transition: transform .9s cubic-bezier(.2,.7,.2,1);
  transition-delay: var(--mask-delay, 0ms);
}
.reveal-mask.in > span { transform: translateY(0); }

/* Stagger */
.stagger > * {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity .6s ease, transform .6s ease;
}
.stagger.in > *:nth-child(1) { transition-delay: .04s; }
.stagger.in > *:nth-child(2) { transition-delay: .12s; }
.stagger.in > *:nth-child(3) { transition-delay: .20s; }
.stagger.in > *:nth-child(4) { transition-delay: .28s; }
.stagger.in > *:nth-child(5) { transition-delay: .36s; }
.stagger.in > *:nth-child(6) { transition-delay: .44s; }
.stagger.in > *:nth-child(n+7) { transition-delay: .50s; }
.stagger.in > * { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  [data-reveal], .reveal-mask > span, .stagger > * {
    opacity: 1 !important; transform: none !important; transition: none !important;
  }
}