*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:120px}body{color:#2d3142;background:#f3f5f8;margin:0;font-family:Segoe UI,system-ui,-apple-system,Roboto,Arial,sans-serif;line-height:1.5}a{color:inherit;text-decoration:none}h1,h2,h3,p{margin:0}