body {
  font-family: system-ui, sans-serif;
  background: #fdfdfd;
  color: #222;
  max-width: 720px;
  margin: 0 auto;
  padding: 2rem;
  line-height: 1.6;
}

h1 {
  font-size: 2.5rem;
  margin-bottom: 0.2em;
}

.tagline {
  font-size: 1.2rem;
  color: #666;
  margin-bottom: 2rem;
}

h2 {
  margin-top: 2rem;
  font-size: 1.5rem;
  border-bottom: 2px solid #ddd;
  padding-bottom: 0.2em;
}

code {
  background: #f4f4f4;
  padding: 0.1em 0.3em;
  border-radius: 4px;
  font-family: monospace;
}

a {
  color: #007acc;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

footer {
  margin-top: 3rem;
  text-align: center;
  font-size: 0.9rem;
  color: #555;
}