:root{
  --font-head:Archivo,'Helvetica Neue',Helvetica,Arial,sans-serif;
  --font-body:Inter,system-ui,-apple-system,'Segoe UI',sans-serif;
  --font-mono:'IBM Plex Mono',ui-monospace,SFMono-Regular,Menlo,monospace;
  --head-weight:600; --head-lead:1.04; --head-track:-.03em; --lead:1.62;
  --step-0:clamp(1.0625rem,1.02rem + .2vw,1.125rem);
  --step-6:clamp(2.4rem,1.55rem + 3.8vw,4rem);
}