.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.6s ease, transform 0.6s ease;
    transition-delay: var(--reveal-delay, 0s);
}

.reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* Opacity-only variant for elements whose layout already depends on `transform`
   (e.g. translate-based centering or absolutely-positioned children) — adding
   `.reveal`'s transform here would override their positioning. */
.reveal-fade {
    opacity: 0;
    transition: opacity 0.6s ease;
    transition-delay: var(--reveal-delay, 0s);
}

.reveal-fade.is-visible {
    opacity: 1;
}

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