/* ============================================
   NutriVida ES - Animations
   ============================================ */

/* --- Fade In --- */
.fade-in,
.fade-in-left,
.fade-in-right {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in-left {
  transform: translateX(-40px);
}

.fade-in-right {
  transform: translateX(40px);
}

.fade-in.visible,
.fade-in-left.visible,
.fade-in-right.visible {
  opacity: 1;
  transform: translate(0);
}

/* --- Stagger children --- */
.services__grid .service-card:nth-child(1) { transition-delay: 0s; }
.services__grid .service-card:nth-child(2) { transition-delay: 0.1s; }
.services__grid .service-card:nth-child(3) { transition-delay: 0.2s; }
.services__grid .service-card:nth-child(4) { transition-delay: 0.3s; }
.services__grid .service-card:nth-child(5) { transition-delay: 0.4s; }
.services__grid .service-card:nth-child(6) { transition-delay: 0.5s; }

.team__grid .team-card:nth-child(1) { transition-delay: 0s; }
.team__grid .team-card:nth-child(2) { transition-delay: 0.1s; }
.team__grid .team-card:nth-child(3) { transition-delay: 0.2s; }
.team__grid .team-card:nth-child(4) { transition-delay: 0.3s; }

.blog__grid .blog-card:nth-child(1) { transition-delay: 0s; }
.blog__grid .blog-card:nth-child(2) { transition-delay: 0.15s; }
.blog__grid .blog-card:nth-child(3) { transition-delay: 0.3s; }

/* --- Hero pulse --- */
.hero__badge {
  animation: pulse 3s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(255,255,255,0.2); }
  50% { box-shadow: 0 0 0 10px rgba(255,255,255,0); }
}

/* --- Nav overlay --- */
.nav-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.nav-overlay.active {
  opacity: 1;
  visibility: visible;
}

/* --- Prefers reduced motion --- */
@media (prefers-reduced-motion: reduce) {
  .fade-in,
  .fade-in-left,
  .fade-in-right {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .hero__badge {
    animation: none;
  }

  .hero__scroll-btn {
    animation: none;
  }

  html {
    scroll-behavior: auto;
  }
}