/**
 * Scroll Animations
 * Intersection Observer adiciona .is-visible → CSS transiciona
 * Apenas opacity e transform — compositor thread, zero layout/paint
 */

/* ── Estado inicial ──────────────────────────────────────── */

[data-animate] {
  opacity: 0;
  will-change: opacity, transform;
  transition:
    opacity  0.7s cubic-bezier(0.16, 1, 0.3, 1),
    transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Padrão: fade up */
[data-animate]:not([data-animate="fade"]) {
  transform: translateY(28px);
}

/* ── Estado visível ──────────────────────────────────────── */

[data-animate].is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── Stagger delays ──────────────────────────────────────── */

[data-animate][data-delay="1"] { transition-delay: 0.1s; }
[data-animate][data-delay="2"] { transition-delay: 0.2s; }
[data-animate][data-delay="3"] { transition-delay: 0.3s; }
[data-animate][data-delay="4"] { transition-delay: 0.4s; }
[data-animate][data-delay="5"] { transition-delay: 0.5s; }
[data-animate][data-delay="6"] { transition-delay: 0.6s; }

/* ── Acessibilidade ──────────────────────────────────────── */

@media (prefers-reduced-motion: reduce) {
  [data-animate] {
    opacity: 1;
    transform: none;
    transition: none;
    will-change: auto;
  }
}