* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: Georgia, "Times New Roman", serif;
  line-height: 1.75;
  color: #1a1a1a;
  background: #fff;
  max-width: 42rem;
  margin: 0 auto;
  padding: 0 1.5rem;
}

header {
  padding: 2rem 0 1rem;
  border-bottom: 1px solid #e5e5e5;
  margin-bottom: 2rem;
}

nav {
  display: flex;
  align-items: center;
}

.logo {
  font-size: 1.125rem;
  font-weight: 700;
  text-decoration: none;
  color: #1a1a1a;
  letter-spacing: -0.02em;
}

main {
  min-height: 60vh;
  padding-bottom: 3rem;
}

article {
  margin-bottom: 3rem;
}

article h1 {
  font-size: 1.75rem;
  line-height: 1.25;
  margin-bottom: 0.5rem;
  letter-spacing: -0.02em;
}

article time {
  display: block;
  font-size: 0.875rem;
  color: #666;
  margin-bottom: 1.5rem;
}

article p {
  margin-bottom: 1.25rem;
}

article h2 {
  font-size: 1.375rem;
  margin: 2rem 0 0.75rem;
  letter-spacing: -0.01em;
}

article h3 {
  font-size: 1.125rem;
  margin: 1.5rem 0 0.5rem;
}

article blockquote {
  border-left: 3px solid #ccc;
  padding-left: 1rem;
  margin: 1.5rem 0;
  color: #444;
  font-style: italic;
}

article code {
  background: #f4f4f4;
  padding: 0.15em 0.35em;
  border-radius: 3px;
  font-size: 0.9em;
}

article pre {
  background: #f4f4f4;
  padding: 1rem;
  border-radius: 4px;
  overflow-x: auto;
  margin: 1.5rem 0;
}

article pre code {
  background: none;
  padding: 0;
}

article img {
  max-width: 100%;
  height: auto;
  margin: 1.5rem 0;
}

article ul, article ol {
  margin: 1rem 0;
  padding-left: 1.5rem;
}

article li {
  margin-bottom: 0.25rem;
}

article a {
  color: #0066cc;
  text-decoration: underline;
  text-underline-offset: 2px;
}

.article-list {
  list-style: none;
  padding: 0;
}

.article-list li {
  margin-bottom: 1.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid #eee;
}

.article-list li:last-child {
  border-bottom: none;
}

.article-list a {
  font-size: 1.25rem;
  font-weight: 600;
  color: #1a1a1a;
  text-decoration: none;
  letter-spacing: -0.01em;
}

.article-list a:hover {
  text-decoration: underline;
}

.article-list .date {
  display: block;
  font-size: 0.875rem;
  color: #666;
  margin-top: 0.25rem;
}

.article-list .summary {
  display: block;
  font-size: 0.95rem;
  color: #444;
  margin-top: 0.35rem;
}

footer {
  border-top: 1px solid #e5e5e5;
  padding: 1.5rem 0;
  font-size: 0.875rem;
  color: #999;
}

@media (max-width: 600px) {
  body {
    padding: 0 1rem;
  }

  article h1 {
    font-size: 1.5rem;
  }
}