/* ============================================================
   ANIMAÇÕES — reveal on scroll + stagger
   ============================================================ */
.reveal,
.reveal-img {
  opacity: 0;
  will-change: opacity, transform;
}

@media (prefers-reduced-motion: reduce) {
  .reveal,
  .reveal-img {
    opacity: 1;
  }
}

/* Fade + slide up */
.reveal {
  transition: opacity 700ms cubic-bezier(0.22, 1, 0.36, 1),
              transform 700ms cubic-bezier(0.22, 1, 0.36, 1);
}

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

/* Imagem: reveal com escala sutil */
.reveal-img {
  transition: opacity 900ms cubic-bezier(0.22, 1, 0.36, 1),
              transform 900ms cubic-bezier(0.22, 1, 0.36, 1);
}

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

/* Definido via JS com data-animate-delay para stagger */
[data-animate-delay] {
  transition-delay: var(--delay, 0ms);
}

/* Hero — entrada inicial */
@media (prefers-reduced-motion: no-preference) {
  .hero .reveal {
    transform: translateY(24px);
    transition-delay: var(--delay, 0ms);
  }

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

  .hero .reveal:nth-child(1) { --delay: 100ms; }
  .hero .reveal:nth-child(2) { --delay: 220ms; }
  .hero .reveal:nth-child(3) { --delay: 340ms; }
  .hero .reveal:nth-child(4) { --delay: 460ms; }
  .hero .reveal:nth-child(5) { --delay: 580ms; }

  /* Scroll */
  .reveal,
  .reveal-img {
    transform: translateY(28px);
  }

  .reveal-img {
    transform: scale(1.035);
  }

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

/* Animações de card baseadas em grid position (stagger sutil) */
@media (prefers-reduced-motion: no-preference) {
  .areas__grid .reveal:nth-child(2),
  .diferenciais__grid .reveal:nth-child(2),
  .autoridade__stats .reveal:nth-child(2) {
    transition-delay: 80ms;
  }

  .areas__grid .reveal:nth-child(3),
  .diferenciais__grid .reveal:nth-child(3),
  .autoridade__stats .reveal:nth-child(3) {
    transition-delay: 160ms;
  }

  .diferenciais__grid .reveal:nth-child(4),
  .autoridade__stats .reveal:nth-child(4) {
    transition-delay: 60ms;
  }

  .diferenciais__grid .reveal:nth-child(5) {
    transition-delay: 140ms;
  }

  .diferenciais__grid .reveal:nth-child(6) {
    transition-delay: 220ms;
  }
}