/**
 * Scroll-driven premium animations.
 * Does not change layout, typography, colors, spacing, or structure.
 */

/* ----- 1. Scroll-driven section reveal ----- */
.section-reveal {
  opacity: 0;
  transform: translateY(60px);
  transition:
    opacity 0.8s cubic-bezier(0.22, 1, 0.36, 1),
    transform 0.8s cubic-bezier(0.22, 1, 0.36, 1);
  will-change: transform, opacity;
}

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

/* ----- 2. Horizontal card slide (cards slide from right as section enters) ----- */
.card-slide-in {
  opacity: 0;
  transform: translateX(80px);
  transition:
    opacity 0.8s cubic-bezier(0.22, 1, 0.36, 1),
    transform 0.8s cubic-bezier(0.22, 1, 0.36, 1);
  will-change: transform, opacity;
}

.card-grid-reveal.is-visible .card-slide-in,
.card-grid-reveal.is-visible .terms-panel,
.card-grid-reveal.is-visible .review-card,
.card-grid-reveal.is-visible .room-card {
  opacity: 1;
  transform: translateX(0);
}

.card-grid-reveal .terms-panel,
.card-grid-reveal .review-card,
.card-grid-reveal .room-card {
  opacity: 0;
  transform: translateX(80px);
  transition:
    opacity 0.8s cubic-bezier(0.22, 1, 0.36, 1),
    transform 0.8s cubic-bezier(0.22, 1, 0.36, 1);
  will-change: transform, opacity;
}

.card-grid-reveal.is-visible .terms-panel:nth-child(1),
.card-grid-reveal.is-visible .review-card:nth-child(1),
.card-grid-reveal.is-visible .room-card:nth-child(1) { transition-delay: 0ms; }
.card-grid-reveal.is-visible .terms-panel:nth-child(2),
.card-grid-reveal.is-visible .review-card:nth-child(2),
.card-grid-reveal.is-visible .room-card:nth-child(2) { transition-delay: 120ms; }
.card-grid-reveal.is-visible .terms-panel:nth-child(3),
.card-grid-reveal.is-visible .review-card:nth-child(3),
.card-grid-reveal.is-visible .room-card:nth-child(3) { transition-delay: 240ms; }
.card-grid-reveal.is-visible .terms-panel:nth-child(4),
.card-grid-reveal.is-visible .review-card:nth-child(4),
.card-grid-reveal.is-visible .room-card:nth-child(4) { transition-delay: 360ms; }
.card-grid-reveal.is-visible .terms-panel:nth-child(5) { transition-delay: 480ms; }
.card-grid-reveal.is-visible .room-card:nth-child(5) { transition-delay: 480ms; }
.card-grid-reveal.is-visible .terms-panel:nth-child(6),
.card-grid-reveal.is-visible .room-card:nth-child(6) { transition-delay: 600ms; }
.card-grid-reveal.is-visible .room-card:nth-child(7) { transition-delay: 720ms; }
.card-grid-reveal.is-visible .room-card:nth-child(8) { transition-delay: 840ms; }

/* Rooms section: cards reveal symmetrically from bottom (all together) */
.section--sanctuary .card-grid-reveal .room-card {
  transform: translateY(60px);
}
.section--sanctuary .card-grid-reveal.is-visible .room-card {
  transform: translateY(0);
  transition-delay: 0ms;
}

/* ----- 4. Cinematic image zoom (hero & feature images) ----- */
.cinematic-zoom-scroll {
  animation: cinematicZoomScroll 10s linear forwards;
  will-change: transform;
}

@keyframes cinematicZoomScroll {
  from {
    transform: scale(1);
  }
  to {
    transform: scale(1.06);
  }
}

/* ----- 8. Performance ----- */
.parallax-img,
.stat__num--animate {
  will-change: transform;
}

.stat__num--animate {
  will-change: contents;
}

@media (prefers-reduced-motion: reduce) {
  .section-reveal,
  .section-reveal.is-visible,
  .card-grid-reveal .terms-panel,
  .card-grid-reveal .review-card,
  .card-grid-reveal .room-card,
  .card-grid-reveal.is-visible .terms-panel,
  .card-grid-reveal.is-visible .review-card,
  .card-grid-reveal.is-visible .room-card,
  .cinematic-zoom-scroll {
    opacity: 1;
    transform: none;
    transition: none;
    animation: none;
  }
}