/* =========================================================
   Animations
   ========================================================= */

/* ---------- Hero entrance (single orchestrated sequence) ---------- */
.hero__eyebrow, .hero__name, .hero__statement, .hero__actions, .hero__scroll-hint {
  opacity: 0;
  transform: translateY(18px);
  animation: rise .8s var(--ease) forwards;
}
.hero__eyebrow  { animation-delay: .05s; }
.hero__name     { animation-delay: .15s; }
.hero__statement{ animation-delay: .3s; }
.hero__actions  { animation-delay: .42s; }
.hero__scroll-hint { animation-delay: .6s; }

@keyframes rise {
  to { opacity: 1; transform: translateY(0); }
}

/* ---------- Floating 3D scene ---------- */
.die--a  { animation: float-a 9s ease-in-out infinite, spin-a 26s linear infinite; }
.die--b  { animation: float-b 7.5s ease-in-out infinite, spin-b 22s linear infinite; }
.cube--a { animation: float-b 8.5s ease-in-out infinite, spin-a 30s linear infinite; }
.cube--b { animation: float-a 6.5s ease-in-out infinite, spin-b 18s linear infinite; }
.card-chip--a { animation: float-b 8s ease-in-out infinite; }
.card-chip--b { animation: float-a 7s ease-in-out infinite; }

@keyframes float-a {
  0%, 100% { translate: 0 0; }
  50% { translate: 0 -18px; }
}
@keyframes float-b {
  0%, 100% { translate: 0 0; }
  50% { translate: 0 16px; }
}
@keyframes spin-a {
  from { rotate: 0deg; }
  to { rotate: 360deg; }
}
@keyframes spin-b {
  from { rotate: 360deg; }
  to { rotate: 0deg; }
}
.die, .cube {
  animation-name: float-a, spin-a;
  rotate: 0deg;
}
.die > *, .cube > * { transform-style: preserve-3d; }
.die, .cube {
  transform: rotateX(var(--rx, -18deg)) rotateY(var(--ry, 28deg));
}

/* ---------- Scroll reveal (one pass, IntersectionObserver-driven) ---------- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .7s var(--ease), transform .7s var(--ease);
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-stagger > * {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity .6s var(--ease), transform .6s var(--ease);
}
.reveal-stagger.is-visible > * { opacity: 1; transform: translateY(0); }
.reveal-stagger.is-visible > *:nth-child(1) { transition-delay: .02s; }
.reveal-stagger.is-visible > *:nth-child(2) { transition-delay: .09s; }
.reveal-stagger.is-visible > *:nth-child(3) { transition-delay: .16s; }
.reveal-stagger.is-visible > *:nth-child(4) { transition-delay: .23s; }
.reveal-stagger.is-visible > *:nth-child(5) { transition-delay: .3s; }
.reveal-stagger.is-visible > *:nth-child(6) { transition-delay: .37s; }

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .hero__eyebrow, .hero__name, .hero__statement, .hero__actions, .hero__scroll-hint {
    animation: none; opacity: 1; transform: none;
  }
  .die, .cube, .card-chip,
  .die--a, .die--b, .cube--a, .cube--b, .card-chip--a, .card-chip--b {
    animation: none !important;
  }
  .reveal, .reveal-stagger > * {
    transition: none;
    opacity: 1;
    transform: none;
  }
  * { animation-duration: .001s !important; transition-duration: .001s !important; }
}