:root{font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:#1f2933;background:#f7f9fb}main{max-width:40rem;margin:4rem auto;padding:0 1rem}dl{display:grid;grid-template-columns:max-content 1fr;gap:.5rem 1.5rem}dt{font-weight:600}dd{margin:0}.ok{color:#1b7f3b}.unreachable{color:#b42318}