body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.6;
  color: #333;
  max-width: 800px;
  margin: 0 auto;
  padding: 2rem;
  background: #fafafa;
}

main {
  background: white;
  padding: 2rem;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

h1, h2, h3 {
  color: #222;
  margin-top: 1.5rem;
}

h1 {
  margin-top: 0;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid #333;
}

.meta {
  color: #888;
  font-size: 0.9rem;
  margin-top: -0.5rem;
  margin-bottom: 1.5rem;
}

a {
  color: #0366d6;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

ul, ol {
  padding-left: 1.5rem;
}

li {
  margin: 0.5rem 0;
}

p {
  margin: 1rem 0;
}

img {
  max-width: 100%;
  height: auto;
}

.back-link {
  display: inline-block;
  margin-top: 2rem;
  padding: 0.5rem 1rem;
  background: #f0f0f0;
  border-radius: 4px;
}

.back-link:hover {
  background: #e0e0e0;
  text-decoration: none;
}