body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color: #1f2430;
  background: #fbfaf7;
  line-height: 1.6;
}

main, footer {
  max-width: 640px;
  margin: 0 auto;
  padding: 0 20px;
}

main { padding-top: 56px; }

h1 { font-size: 2.2rem; margin: 0 0 8px; }
h2 { font-size: 1.15rem; margin: 36px 0 6px; }
.lead { font-size: 1.15rem; color: #555b68; margin-top: 0; }

a { color: #0b6e4f; }

footer {
  margin-top: 48px;
  padding-bottom: 40px;
  font-size: 0.95rem;
}