/* ============================================================
   EL HORNO DE ANA — Animations & Transitions
   Scroll reveals, hover effects, page transitions
   ============================================================ */

/* ─── Scroll Reveal ───────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity var(--duration-slow) var(--ease-out),
              transform var(--duration-slow) var(--ease-out);
}

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

/* Stagger children */
.reveal-stagger > .reveal:nth-child(1) { transition-delay: 0ms; }
.reveal-stagger > .reveal:nth-child(2) { transition-delay: 100ms; }
.reveal-stagger > .reveal:nth-child(3) { transition-delay: 200ms; }
.reveal-stagger > .reveal:nth-child(4) { transition-delay: 300ms; }
.reveal-stagger > .reveal:nth-child(5) { transition-delay: 400ms; }
.reveal-stagger > .reveal:nth-child(6) { transition-delay: 500ms; }

/* ─── Page Transitions ────────────────────────────────── */
.page-enter {
  animation: pageEnter var(--duration-slow) var(--ease-out) forwards;
}

@keyframes pageEnter {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ─── Image Lazy Loading ──────────────────────────────── */
.img-lazy {
  opacity: 0;
  transition: opacity var(--duration-slow) var(--ease-out);
}

.img-lazy.loaded {
  opacity: 1;
}

/* ─── Hover zoom on images ────────────────────────────── */
.img-zoom {
  overflow: hidden;
}

.img-zoom img {
  transition: transform var(--duration-slow) var(--ease-out);
}

.img-zoom:hover img {
  transform: scale(1.05);
}

/* ─── Navbar scroll animation ─────────────────────────── */
.navbar-enter {
  animation: navSlideDown var(--duration-normal) var(--ease-out) forwards;
}

@keyframes navSlideDown {
  from {
    transform: translateY(-100%);
  }
  to {
    transform: translateY(0);
  }
}

/* ─── Pulse for WhatsApp button ───────────────────────── */
@keyframes pulse {
  0%, 100% {
    box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.4);
  }
  50% {
    box-shadow: 0 0 0 12px rgba(37, 211, 102, 0);
  }
}

.btn-whatsapp {
  animation: pulse 2s infinite;
}

.btn-whatsapp:hover {
  animation: none;
}

/* ─── Skeleton loading ────────────────────────────────── */
@keyframes shimmer {
  0% {
    background-position: -200% 0;
  }
  100% {
    background-position: 200% 0;
  }
}

.skeleton {
  background: linear-gradient(
    90deg,
    var(--color-surface-mid) 25%,
    var(--color-surface-low) 50%,
    var(--color-surface-mid) 75%
  );
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-md);
}

/* ─── Reduced motion preference ───────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  
  .reveal {
    opacity: 1;
    transform: none;
  }
}