*, *::before, *::after { box-sizing: border-box; }

body {
  font-family: Georgia, 'Times New Roman', serif;
  font-size: 1.1rem;
  line-height: 1.7;
  color: #1a1a1a;
  background: #fafafa;
  max-width: 720px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

a { color: #2a5db0; text-decoration: none; }
a:hover { text-decoration: underline; }

header {
  padding: 1.5rem 0;
  border-bottom: 1px solid #e0e0e0;
  margin-bottom: 2rem;
}

header nav { display: flex; gap: 1.5rem; align-items: center; }

.site-title {
  font-weight: bold;
  font-size: 1.2rem;
  color: #1a1a1a;
}

main { padding-bottom: 3rem; }

h1, h2, h3 { line-height: 1.3; }

ul.post-list, .post-list ul { list-style: none; padding: 0; }

ul.post-list li, .post-list ul li {
  display: flex;
  gap: 1rem;
  padding: 0.4rem 0;
  border-bottom: 1px solid #f0f0f0;
}

time { color: #666; font-size: 0.9rem; flex-shrink: 0; }

article header { border-bottom: none; margin-bottom: 1rem; }
article h1 { margin-bottom: 0.25rem; }

.content p { margin-top: 0; }
.content pre { overflow-x: auto; padding: 1rem; background: #f4f4f4; border-radius: 4px; }
.content code { font-size: 0.9em; }

footer {
  border-top: 1px solid #e0e0e0;
  padding: 1.5rem 0;
  color: #666;
  font-size: 0.9rem;
}