/* MOT-2 adapte : slide directionnel VERTICAL only (PIEGE PROD #13).
   Garde l'esprit alternance via translateY differencie (impair / pair). */

[data-reveal] {
  opacity: 0;
  transition: opacity .6s ease, transform .6s var(--ease);
  transform: translateY(22px);
}
[data-reveal]:nth-child(even) {
  transform: translateY(-14px);
}
[data-reveal].in {
  opacity: 1;
  transform: none;
}

/* Stagger pour grilles */
.stagger > * {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity .55s ease, transform .55s var(--ease);
}
.stagger.in > * { opacity: 1; transform: none; }
.stagger.in > *:nth-child(1) { transition-delay: .05s; }
.stagger.in > *:nth-child(2) { transition-delay: .12s; }
.stagger.in > *:nth-child(3) { transition-delay: .19s; }
.stagger.in > *:nth-child(4) { transition-delay: .26s; }
.stagger.in > *:nth-child(5) { transition-delay: .33s; }
.stagger.in > *:nth-child(6) { transition-delay: .40s; }
.stagger.in > *:nth-child(7) { transition-delay: .47s; }
.stagger.in > *:nth-child(8) { transition-delay: .54s; }

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