/* ============================================
   Reveal animations - fade in + lift on scroll
   ============================================ */

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 900ms cubic-bezier(.2,.8,.2,1), transform 900ms cubic-bezier(.2,.8,.2,1);
  will-change: transform, opacity;
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger children */
.about__values .reveal:nth-child(1) { transition-delay: 80ms; }
.about__values .reveal:nth-child(2) { transition-delay: 160ms; }
.about__values .reveal:nth-child(3) { transition-delay: 240ms; }

.services__grid .service:nth-child(1) { transition-delay: 0ms; }
.services__grid .service:nth-child(2) { transition-delay: 80ms; }
.services__grid .service:nth-child(3) { transition-delay: 160ms; }
.services__grid .service:nth-child(4) { transition-delay: 240ms; }
.services__grid .service:nth-child(5) { transition-delay: 0ms; }
.services__grid .service:nth-child(6) { transition-delay: 80ms; }
.services__grid .service:nth-child(7) { transition-delay: 160ms; }
.services__grid .service:nth-child(8) { transition-delay: 240ms; }

.realisations__grid .reali:nth-child(1) { transition-delay: 0ms; }
.realisations__grid .reali:nth-child(2) { transition-delay: 100ms; }
.realisations__grid .reali:nth-child(3) { transition-delay: 200ms; }
.realisations__grid .reali:nth-child(4) { transition-delay: 0ms; }
.realisations__grid .reali:nth-child(5) { transition-delay: 100ms; }
.realisations__grid .reali:nth-child(6) { transition-delay: 200ms; }

.contact__infos .reveal:nth-child(1) { transition-delay: 80ms; }
.contact__infos .reveal:nth-child(2) { transition-delay: 160ms; }
.contact__infos .reveal:nth-child(3) { transition-delay: 240ms; }

/* Hero typing-like reveal: orchestrated par js */
.hero .reveal { transition-delay: 0ms; }
.hero__title .reveal:nth-child(1) { transition-delay: 200ms; }
.hero__title .reveal:nth-child(2) { transition-delay: 400ms; }

@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .hero__image { animation: none; }
  .loader__line { animation: none; }
}