/**
 * Premium page animations — CSS only.
 * Does not change layout, colors, fonts, spacing, or content.
 */

/* ----- 1. Page load reveal (main container) ----- */
.page-load-reveal {
  opacity: 0;
  transform: translateY(24px);
  transition:
    opacity 700ms cubic-bezier(0.22, 1, 0.36, 1),
    transform 700ms cubic-bezier(0.22, 1, 0.36, 1);
  will-change: transform, opacity;
}

.page-load-reveal.page-load-reveal--done {
  opacity: 1;
  transform: translateY(0);
}

/* ----- 2. Staggered content (hero / sections) ----- */
.stagger-reveal > * {
  opacity: 0;
  transform: translateY(20px);
  transition:
    opacity 600ms cubic-bezier(0.22, 1, 0.36, 1),
    transform 600ms cubic-bezier(0.22, 1, 0.36, 1);
  will-change: transform, opacity;
}

.stagger-reveal.stagger-reveal--done > * {
  opacity: 1;
  transform: translateY(0);
}

.stagger-reveal.stagger-reveal--done > *:nth-child(1) { transition-delay: 0ms; }
.stagger-reveal.stagger-reveal--done > *:nth-child(2) { transition-delay: 100ms; }
.stagger-reveal.stagger-reveal--done > *:nth-child(3) { transition-delay: 200ms; }
.stagger-reveal.stagger-reveal--done > *:nth-child(4) { transition-delay: 300ms; }
.stagger-reveal.stagger-reveal--done > *:nth-child(5) { transition-delay: 400ms; }
.stagger-reveal.stagger-reveal--done > *:nth-child(6) { transition-delay: 500ms; }
.stagger-reveal.stagger-reveal--done > *:nth-child(7) { transition-delay: 600ms; }
.stagger-reveal.stagger-reveal--done > *:nth-child(8) { transition-delay: 700ms; }
.stagger-reveal.stagger-reveal--done > *:nth-child(9) { transition-delay: 800ms; }
.stagger-reveal.stagger-reveal--done > *:nth-child(10) { transition-delay: 900ms; }
.stagger-reveal.stagger-reveal--done > *:nth-child(11) { transition-delay: 1000ms; }
.stagger-reveal.stagger-reveal--done > *:nth-child(12) { transition-delay: 1100ms; }

/* ----- 3. Cinematic zoom (hero / large image panels) ----- */
.cinematic-zoom {
  animation: cinematicZoom 10s ease-out forwards;
  will-change: transform;
}

@keyframes cinematicZoom {
  from {
    transform: scale(1);
  }
  to {
    transform: scale(1.05);
  }
}

/* ----- 4. Button micro-interactions ----- */
.btn-premium-hover {
  transition: transform 200ms ease, box-shadow 200ms ease;
}

.btn-premium-hover:hover {
  transform: scale(1.04);
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.12);
}

.btn-premium-hover:active {
  transform: scale(0.98);
}

/* ----- 5. Scroll reveal (IntersectionObserver) ----- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition:
    opacity 700ms cubic-bezier(0.22, 1, 0.36, 1),
    transform 700ms cubic-bezier(0.22, 1, 0.36, 1);
  will-change: transform, opacity;
}

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

/* Stagger children when parent becomes visible */
.reveal.reveal--stagger > * {
  opacity: 0;
  transform: translateY(30px);
  transition:
    opacity 700ms cubic-bezier(0.22, 1, 0.36, 1),
    transform 700ms cubic-bezier(0.22, 1, 0.36, 1);
  will-change: transform, opacity;
}

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

.reveal.reveal--stagger.is-visible > *:nth-child(1) { transition-delay: 0ms; }
.reveal.reveal--stagger.is-visible > *:nth-child(2) { transition-delay: 80ms; }
.reveal.reveal--stagger.is-visible > *:nth-child(3) { transition-delay: 160ms; }
.reveal.reveal--stagger.is-visible > *:nth-child(4) { transition-delay: 240ms; }
.reveal.reveal--stagger.is-visible > *:nth-child(5) { transition-delay: 320ms; }
.reveal.reveal--stagger.is-visible > *:nth-child(6) { transition-delay: 400ms; }
.reveal.reveal--stagger.is-visible > *:nth-child(7) { transition-delay: 480ms; }
.reveal.reveal--stagger.is-visible > *:nth-child(8) { transition-delay: 560ms; }
.reveal.reveal--stagger.is-visible > *:nth-child(9) { transition-delay: 640ms; }
.reveal.reveal--stagger.is-visible > *:nth-child(10) { transition-delay: 720ms; }
.reveal.reveal--stagger.is-visible > *:nth-child(11) { transition-delay: 800ms; }
.reveal.reveal--stagger.is-visible > *:nth-child(12) { transition-delay: 880ms; }

/* ----- Hero text reveal (GSAP in animations.js) ----- */
.hero__title .hero-title__track {
  display: block;
  overflow: hidden;
  padding-bottom: 0.06em;
}

.hero__title .hero-title__inner {
  display: inline-block;
  transform: translate3d(0, 110%, 0);
  will-change: transform;
}

.hero__desc .hero-desc__word-wrap {
  display: inline-block;
  overflow: hidden;
  margin-right: 0.28em;
  vertical-align: top;
}

.hero__desc .hero-desc__word {
  display: inline-block;
  transform: translate3d(0, 115%, 0);
  opacity: 0;
  will-change: transform, opacity;
}

/* Respect reduced motion */
@media (prefers-reduced-motion: reduce) {
  .page-load-reveal,
  .page-load-reveal.page-load-reveal--done,
  .stagger-reveal > *,
  .stagger-reveal.stagger-reveal--done > *,
  .cinematic-zoom,
  .reveal,
  .reveal.is-visible,
  .reveal.reveal--stagger > *,
  .reveal.reveal--stagger.is-visible > *,
  .hero__title .hero-title__inner,
  .hero__desc .hero-desc__word {
    opacity: 1;
    transform: none;
    transition: none;
    animation: none;
  }
}