/* scroll.css v4 — fix: filter:blur supprimé (perf), #bouton-haut dédupliqué */
.scroll {
  opacity: 0;
  transform: translateY(40px);
  transition:
    opacity 0.9s cubic-bezier(0.4, 0, 0.2, 1),
    transform 0.9s cubic-bezier(0.4, 0, 0.2, 1);
}
.scroll-left {
  opacity: 0;
  transform: translateX(-50px);
  transition:
    opacity 0.9s cubic-bezier(0.4, 0, 0.2, 1),
    transform 0.9s cubic-bezier(0.4, 0, 0.2, 1);
}
.scroll-right {
  opacity: 0;
  transform: translateX(50px);
  transition:
    opacity 0.9s cubic-bezier(0.4, 0, 0.2, 1),
    transform 0.9s cubic-bezier(0.4, 0, 0.2, 1);
}

.show {
  opacity: 1;
  transform: translate(0);
}

/* Stagger pour les enfants d'une grille */
.competences-grille .carte-competence:nth-child(1) { transition-delay: 0s; }
.competences-grille .carte-competence:nth-child(2) { transition-delay: 0.12s; }
.competences-grille .carte-competence:nth-child(3) { transition-delay: 0.24s; }

.projets-grille .carte-projet:nth-child(1) { transition-delay: 0s; }
.projets-grille .carte-projet:nth-child(2) { transition-delay: 0.08s; }
.projets-grille .carte-projet:nth-child(3) { transition-delay: 0.16s; }
.projets-grille .carte-projet:nth-child(4) { transition-delay: 0.24s; }
.projets-grille .carte-projet:nth-child(5) { transition-delay: 0.32s; }
.projets-grille .carte-projet:nth-child(6) { transition-delay: 0.40s; }

@media (prefers-reduced-motion: reduce) {
  .scroll, .scroll-left, .scroll-right {
    transition: none;
    opacity: 1;
    transform: none;
  }
}