.fade-in { opacity: 0; transform: translateY(22px); transition: opacity .6s ease, transform .6s ease; }
.fade-in.is-visible { opacity: 1; transform: none; }

.services__grid .fade-in:nth-child(2),
.usp-grid .fade-in:nth-child(2),
.refs__grid .fade-in:nth-child(2),
.stats .fade-in:nth-child(2),
.detail-grid .fade-in:nth-child(2) { transition-delay: .1s; }
.services__grid .fade-in:nth-child(3),
.usp-grid .fade-in:nth-child(3),
.refs__grid .fade-in:nth-child(3),
.stats .fade-in:nth-child(3),
.detail-grid .fade-in:nth-child(3) { transition-delay: .2s; }
.refs__grid .fade-in:nth-child(4),
.detail-grid .fade-in:nth-child(4) { transition-delay: .3s; }
.gallery__grid .fade-in:nth-child(3n+2) { transition-delay: .08s; }
.gallery__grid .fade-in:nth-child(3n+3) { transition-delay: .16s; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .fade-in { opacity: 1; transform: none; transition: none; }
  .btn, .service-card, .sticky-cta, .header__burger span { transition: none; }
  .hero-full__bg, .hero-full__content, .hero-full__note, .hero-full__scroll { animation: none; }
}