body {
  font-family: Arial, sans-serif;
  margin: 0;
  background: #f4f4f4;
}

header, footer {
  background: #222;
  color: #fff;
  text-align: center;
  padding: 1rem;
}

main {
  max-width: 800px;
  margin: 2rem auto;
  padding: 0 1rem;
}

.post {
  background: #fff;
  padding: 1.5rem;
  margin-bottom: 1rem;
  border-radius: 6px;
}

.meta {
  color: #666;
  font-size: 0.9rem;
}