*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif}img{max-width:100%;display:block}.fade-in-section{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease}.fade-in-section.visible{opacity:1;transform:none}@media(prefers-reduced-motion:reduce){.fade-in-section{opacity:1;transform:none;transition:none}}