/* ============================================================
   ANIMATIONS.CSS — Animaciones compartidas
   Fade-in, blur-in y reveal on-scroll (250ms - 600ms, sin excesos)
   ============================================================ */

/* Elementos comienzan ocultos, y se revelan cuando entran al viewport
   mediante la clase .is-visible (agregada por js/animations.js) */
.reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

.reveal-blur {
    opacity: 0;
    filter: blur(6px);
    transition: opacity 0.5s ease, filter 0.5s ease;
}

.reveal-blur.is-visible {
    opacity: 1;
    filter: blur(0);
}

.reveal-scale {
    opacity: 0;
    transform: scale(0.96);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

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

/* Escalonado: aplicar delays incrementales a hijos directos */
.reveal-stagger > * {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.reveal-stagger.is-visible > *:nth-child(1) { transition-delay: 0ms; }
.reveal-stagger.is-visible > *:nth-child(2) { transition-delay: 80ms; }
.reveal-stagger.is-visible > *:nth-child(3) { transition-delay: 160ms; }
.reveal-stagger.is-visible > *:nth-child(4) { transition-delay: 240ms; }
.reveal-stagger.is-visible > *:nth-child(5) { transition-delay: 320ms; }

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