body {
  font-family: system-ui, -apple-system, Segoe UI, sans-serif;
  max-width: 42rem;
  margin: 2rem auto;
  padding: 0 1rem 3rem;
  line-height: 1.5;
  color: #111;
}
h1, h2 { line-height: 1.25; }
h1 { font-size: 1.6rem; margin-bottom: 0.35rem; }
h2 { font-size: 1.15rem; margin-top: 1.75rem; }
nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
  margin: 1rem 0 1.5rem;
  font-size: 0.95rem;
}
nav a { color: #0b57d0; }
.meta { color: #444; font-size: 0.95rem; }
.card {
  border: 1px solid #ddd;
  border-radius: 10px;
  padding: 1rem 1.1rem;
  margin: 1rem 0;
  background: #fafafa;
}
footer {
  margin-top: 2.5rem;
  padding-top: 1rem;
  border-top: 1px solid #e5e5e5;
  color: #555;
  font-size: 0.9rem;
}