:root{
  --topbar:#1f2a44;
}
body{font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;}
.topbar{background:var(--topbar); color:white;}
.skip-link{
  position:absolute; left:-9999px; top:auto;
  width:1px; height:1px; overflow:hidden;
}
.skip-link:focus{
  left:1rem; top:1rem; width:auto; height:auto;
  padding:.5rem .75rem; background:#000; color:#fff; z-index:9999;
}
.stack > * + *{ margin-top:.75rem; }
.section{ padding-top:1rem; }
.section-title{ font-weight:700; margin:.25rem 0 .75rem; }