*{box-sizing:border-box}
body{
  margin:0;
  font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;
  line-height:1.6;
  background:#fff;
  color:#111;
}
.wrap{max-width:1100px;margin:auto;padding:16px}
.site-header,.site-footer{
}
.site-header .wrap,.site-footer .wrap{
  display:flex;justify-content:space-between;align-items:center
}