/* ----------------------------------------------------
 * Scroll reveal — fade + translate élégant
 * Cible : sections top-level + enfants directs (stagger)
 * ---------------------------------------------------- */

/* État initial : invisible + décalé vers le bas */
.reveal {
    opacity: 0;
    transform: translate3d(0, 16px, 0);
    transition: opacity 800ms cubic-bezier(0.22, 0.61, 0.36, 1),
                transform 800ms cubic-bezier(0.22, 0.61, 0.36, 1);
    will-change: opacity, transform;
}

/* État visible */
.reveal.is-visible {
    opacity: 1;
    transform: translate3d(0, 0, 0);
}

/* Stagger léger pour les enfants directs de colonnes / grids */
.reveal-stagger > .reveal {
    transition-delay: 0ms;
}
.reveal-stagger > .reveal.is-visible:nth-child(2) { transition-delay: 80ms; }
.reveal-stagger > .reveal.is-visible:nth-child(3) { transition-delay: 160ms; }
.reveal-stagger > .reveal.is-visible:nth-child(4) { transition-delay: 240ms; }
.reveal-stagger > .reveal.is-visible:nth-child(5) { transition-delay: 320ms; }
.reveal-stagger > .reveal.is-visible:nth-child(6) { transition-delay: 400ms; }

/* Respect du réglage OS "réduire les animations" */
@media (prefers-reduced-motion: reduce) {
    .reveal,
    .reveal-stagger > .reveal {
        opacity: 1 !important;
        transform: none !important;
        transition: none !important;
    }
}

/* Fallback : si JS ne charge pas, tout reste visible */
.no-js .reveal {
    opacity: 1;
    transform: none;
}