/* ==========================================================================
   ANIMATIONS.CSS - Scroll animations, hover effects, transiciones
   Sprint 4
   ========================================================================== */

.fade-in-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in-up.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Escalonado leve dentro de grids para que no aparezcan todos a la vez */
.stats-grid .stat-card:nth-child(2) { transition-delay: 0.06s; }
.stats-grid .stat-card:nth-child(3) { transition-delay: 0.12s; }
.stats-grid .stat-card:nth-child(4) { transition-delay: 0.18s; }
.stats-grid .stat-card:nth-child(5) { transition-delay: 0.24s; }

.services-grid .service-card:nth-child(2) { transition-delay: 0.08s; }
.services-grid .service-card:nth-child(3) { transition-delay: 0.16s; }

.testimonials-grid .testimonial-card:nth-child(2) { transition-delay: 0.08s; }
.testimonials-grid .testimonial-card:nth-child(3) { transition-delay: 0.16s; }

/* Respeta la preferencia de reducir movimiento */
@media (prefers-reduced-motion: reduce) {
  .fade-in-up {
    opacity: 1;
    transform: none;
    transition: none;
  }
}