/* Base styles */
body {
  font-family: system-ui, -apple-system, sans-serif;
  line-height: 1.6;
  margin: 0;
  padding: 0;
  background-color: #fcfcfc;
  color: #222;
}

header {
  background-color: #0a0a23;
  color: white;
  padding: 2rem 1rem;
  text-align: center;
}

header h1 {
  margin: 0;
  font-size: 2.5rem;
}

.subtitle {
  font-size: 1.25rem;
  margin-top: 0.5rem;
  color: #bbb;
}

header .date {
  font-size: 0.9rem;
  margin-top: 0.5rem;
  color: #888;
}

main {
  max-width: 640px;
  margin: 2rem auto;
  padding: 0 1rem;
}

.intro {
  font-size: 1.1rem;
  margin-bottom: 2rem;
}

.category {
  margin-bottom: 3rem;
}

.category h2 {
  font-size: 1.6rem;
  border-bottom: 2px solid #eee;
  padding-bottom: 0.25rem;
  margin-bottom: 1rem;
}

article {
  margin-bottom: 1.5rem;
}

article h3 {
  font-size: 1.2rem;
  margin-bottom: 0.4rem;
}

article .date {
  font-weight: bold;
  font-size: 0.8rem;
  color: #666;
}

article h3 a {
  color: #0a0aa3;
  text-decoration: none;
}

article h3 a:hover {
  text-decoration: underline;
}

article p {
  margin: 0;
  color: #333;
}

@media (max-width: 600px) {
  header h1 {
    font-size: 2rem;
  }

  .subtitle {
    font-size: 1rem;
  }

  main {
    padding: 0 0.75rem;
  }
}