/* 老人会風: 飾りすぎず、文章を読みやすく。serif・狭めの段組・古典的なリンク色。 */
* {
  box-sizing: border-box;
}

body {
  max-width: 720px;
  margin: 0 auto;
  padding: 1.5rem 1.25rem 4rem;
  font-family: Georgia, 'Times New Roman', 'Hiragino Mincho ProN', 'Yu Mincho',
    serif;
  line-height: 1.9;
  color: #1a1a1a;
  background: #fffef9;
}

a {
  color: #0000ee;
}
a:visited {
  color: #551a8b;
}
a:hover {
  text-decoration: underline;
}

/* ヘッダ */
.site-header {
  border-bottom: 2px solid #333;
  padding-bottom: 0.75rem;
  margin-bottom: 2rem;
}
.site-title {
  font-size: 1.5rem;
  font-weight: bold;
  text-decoration: none;
  color: #1a1a1a;
}
.site-nav {
  margin-top: 0.4rem;
  font-size: 0.95rem;
}
.site-nav a {
  margin-right: 1rem;
}

.lead {
  color: #444;
}

/* 記事一覧 */
.post-list {
  list-style: none;
  padding: 0;
}
.post-list li {
  padding: 0.45rem 0;
  border-bottom: 1px dotted #ccc;
}
.post-list time {
  color: #666;
  font-size: 0.9rem;
  margin-right: 0.75rem;
}

/* 記事ページ */
.post-title,
.page-title {
  font-size: 1.6rem;
  border-bottom: 1px solid #ccc;
  padding-bottom: 0.4rem;
}
.post-meta {
  color: #666;
  font-size: 0.9rem;
}
.post-content {
  margin-top: 1.5rem;
}
.post-content h2 {
  border-left: 4px solid #2f6f4f;
  padding-left: 0.6rem;
}
.post-content pre {
  background: #f4f4f4;
  padding: 0.8rem;
  overflow-x: auto;
  border: 1px solid #ddd;
}
.post-content code {
  font-family: 'SF Mono', Consolas, 'Courier New', monospace;
  font-size: 0.9em;
}
.post-content blockquote {
  border-left: 3px solid #ccc;
  margin-left: 0;
  padding-left: 1rem;
  color: #555;
}

/* 記事のタグ */
.post-tags {
  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 1px dotted #ccc;
  font-size: 0.9rem;
}
.post-tags .tag {
  margin-right: 0.6rem;
  white-space: nowrap;
}

/* ページ送り */
.pager {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 2.5rem;
  padding-top: 1rem;
  border-top: 1px dotted #ccc;
}
.pager__status {
  color: #666;
  font-size: 0.9rem;
}

/* カテゴリ・タグ一覧 */
.term-list {
  list-style: none;
  padding: 0;
}
.term-list li {
  padding: 0.4rem 0;
  border-bottom: 1px dotted #ccc;
}

/* アーカイブ */
.archive-year__title {
  font-size: 1.3rem;
  border-bottom: 1px solid #ccc;
  padding-bottom: 0.3rem;
}
.archive-month__title {
  font-size: 1.05rem;
  color: #555;
  margin-bottom: 0.3rem;
}

/* フッタ */
.site-footer {
  margin-top: 4rem;
  border-top: 1px solid #ccc;
  padding-top: 1rem;
  font-size: 0.85rem;
  color: #666;
}