/* ============================================================
   ANIMATIONS CSS
   Arquitectura artesanal en tronco macizo
   ============================================================ */

/* ============================================================
   INTERSECTION OBSERVER ANIMATIONS
   ============================================================ */

/* Base: elements start invisible */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.9s cubic-bezier(0.25, 0.1, 0.25, 1),
              transform 0.9s cubic-bezier(0.25, 0.1, 0.25, 1);
}

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

/* Slide from left */
.reveal-left {
  opacity: 0;
  transform: translateX(-32px);
  transition: opacity 0.9s cubic-bezier(0.25, 0.1, 0.25, 1),
              transform 0.9s cubic-bezier(0.25, 0.1, 0.25, 1);
}

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

/* Slide from right */
.reveal-right {
  opacity: 0;
  transform: translateX(32px);
  transition: opacity 0.9s cubic-bezier(0.25, 0.1, 0.25, 1),
              transform 0.9s cubic-bezier(0.25, 0.1, 0.25, 1);
}

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

/* Fade only */
.reveal-fade {
  opacity: 0;
  transition: opacity 1.1s ease;
}

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

/* Scale reveal */
.reveal-scale {
  opacity: 0;
  transform: scale(0.96);
  transition: opacity 0.9s ease,
              transform 0.9s cubic-bezier(0.25, 0.1, 0.25, 1);
}

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

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

/* ============================================================
   HERO ENTRANCE ANIMATIONS
   ============================================================ */
.hero-microcopy {
  opacity: 0;
  transform: translateY(16px);
  animation: heroFadeUp 0.8s ease forwards;
  animation-delay: 0.3s;
}

.hero-title {
  opacity: 0;
  transform: translateY(24px);
  animation: heroFadeUp 1s ease forwards;
  animation-delay: 0.6s;
}

.hero-descriptor {
  opacity: 0;
  transform: translateY(16px);
  animation: heroFadeUp 0.8s ease forwards;
  animation-delay: 0.9s;
}

.hero-secondary-text {
  opacity: 0;
  transform: translateY(16px);
  animation: heroFadeUp 0.8s ease forwards;
  animation-delay: 0.8s;
}

.hero-actions {
  opacity: 0;
  transform: translateY(16px);
  animation: heroFadeUp 0.8s ease forwards;
  animation-delay: 1.1s;
}

.scroll-indicator {
  opacity: 0;
  animation: heroFadeUp 0.8s ease forwards;
  animation-delay: 2s;
}

@keyframes heroFadeUp {
  from {
    opacity: 0;
    transform: translateY(var(--from-y, 16px));
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ============================================================
   LINE DRAW (decorative)
   ============================================================ */
.line-draw {
  position: relative;
  overflow: hidden;
}

.line-draw::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  height: 1px;
  width: 0;
  background: var(--color-wood);
  transition: width 1.2s cubic-bezier(0.25, 0.1, 0.25, 1);
}

.line-draw.is-visible::after {
  width: 100%;
}

/* ============================================================
   IMAGE REVEAL (mask animation)
   ============================================================ */
.img-reveal-wrap {
  overflow: hidden;
  position: relative;
}

.img-reveal-wrap::after {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--color-charcoal);
  transform: translateX(0);
  transition: transform 1s cubic-bezier(0.77, 0, 0.175, 1);
}

.img-reveal-wrap.is-visible::after {
  transform: translateX(101%);
}

/* ============================================================
   PARALLAX BASE
   ============================================================ */
.parallax-slow {
  will-change: transform;
}

/* ============================================================
   REDUCE MOTION
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .reveal,
  .reveal-left,
  .reveal-right,
  .reveal-fade,
  .reveal-scale {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .hero-microcopy,
  .hero-title,
  .hero-descriptor,
  .hero-secondary-text,
  .hero-actions,
  .scroll-indicator {
    opacity: 1;
    transform: none;
    animation: none;
  }

  .img-reveal-wrap::after {
    display: none;
  }
}

/* ============================================================
   PROCESO STEP HOVER
   ============================================================ */
.proceso-step {
  transition: padding-left 0.3s ease;
}

.proceso-step:hover {
  padding-left: var(--space-4);
}

/* ============================================================
   GALERÍA ITEM REVEAL STAGGER
   ============================================================ */
.galeria-item {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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

.galeria-item:nth-child(1) { transition-delay: 0ms; }
.galeria-item:nth-child(2) { transition-delay: 80ms; }
.galeria-item:nth-child(3) { transition-delay: 160ms; }
.galeria-item:nth-child(4) { transition-delay: 240ms; }
.galeria-item:nth-child(5) { transition-delay: 320ms; }
.galeria-item:nth-child(6) { transition-delay: 400ms; }
.galeria-item:nth-child(7) { transition-delay: 480ms; }

/* ============================================================
   NÚMERO DE STAT (counter-up feel)
   ============================================================ */
.stat-number {
  transition: color 0.3s ease;
}

/* ============================================================
   SMOOTH BORDER ACCENT (section transition)
   ============================================================ */
@keyframes borderSlide {
  from { width: 0; }
  to { width: 100%; }
}