/* Y2K風1列レイアウトCSS - 彩度低めの青単色パレット */

/* リセット */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* 背景 */
body {
  background-color: #DDDDEE;
  background-image: radial-gradient(circle, #CCCCDD 1px, transparent 1px);
  background-size: 20px 20px;
  font-family: 'Courier New', 'MS Gothic', monospace;
  font-size: 12px;
  line-height: 24px;
  color: #333366;
}

/* コンテナ */
.container {
  max-width: 800px;
  margin: 0 auto;
  padding: 40px 20px;
}

/* サイトタイトル - 明朝体・背景なし */
.site-title {
  font-family: 'Times New Roman', 'Yu Mincho', 'YuMincho', '游明朝', 'Hiragino Mincho ProN', serif;
  font-size: 32px;
  font-weight: normal;
  color: #333366;
  text-align: center;
  margin-bottom: 30px;
  background: none;
  border: none;
  padding: 0;
}

/* タブメニュー */
.tab-menu {
  margin-bottom: 40px;
  text-align: center;
}

.tab-list {
  list-style: none;
  display: flex;
  justify-content: space-around;
  padding: 0;
  margin: 0;
  width: 100%;
}

.tab-item {
  flex: 1;
  text-align: center;
}

.tab-link {
  display: block;
  padding: 12px 0;
  font-family: 'Courier New', 'MS Gothic', monospace;
  font-size: 15px;
  color: #4444AA;
  text-decoration: none;
  background: none;
  border: none;
}

.tab-link::before {
  content: '~';
  color: #6666AA;
}

.tab-link::after {
  content: '~';
  color: #6666AA;
}

.tab-link:hover {
  background: none;
  text-decoration: underline;
}

.tab-link.active {
  color: #333366;
  font-weight: bold;
  background: none;
}

/* メインコンテンツ */
.site-main {
  padding: 30px 0;
  min-height: 500px;
}

/* フッター */
.site-footer {
  margin-top: 40px;
  padding-top: 20px;
  border-top: 2px solid #AAAACC;
  text-align: center;
  font-size: 11px;
  color: #6666AA;
  line-height: 22px;
}

.site-footer p {
  margin-bottom: 8px;
}

.site-footer a {
  color: #4444AA;
  text-decoration: none;
}

.site-footer a:hover {
  text-decoration: underline;
}

.footer-social a {
  margin: 0 8px;
}

.footer-social a::before {
  content: '[ ';
}

.footer-social a::after {
  content: ' ]';
}

.footer-info {
  margin-top: 12px;
  font-size: 10px;
  color: #AAAACC;
}

/* ホームページ */
.landing-message {
  margin-bottom: 30px;
  padding: 20px;
  background-color: #DDDDEE;
  border-left: 3px solid #6666AA;
  color: #333366;
  font-size: 13px;
  line-height: 26px;
}

.random-showcase {
  margin-bottom: 40px;
  padding: 20px;
  background-color: #FFFFFF;
  border: 2px solid #6666AA;
}

.showcase-image {
  margin-bottom: 20px;
  text-align: center;
  height: 300px;
  overflow: hidden;
}

.showcase-image img {
  width: 100%;
  height: 300px;
  object-fit: cover;
  border: 2px solid #AAAACC;
}

.showcase-text {
  font-size: 12px;
  line-height: 24px;
  color: #4444AA;
  font-style: italic;
  text-align: center;
}

.image-credit {
  text-align: right;
  font-size: 10px;
  color: #AAAACC;
  margin-top: 8px;
}

.image-credit a {
  color: #AAAACC;
  text-decoration: none;
}

.image-credit a:hover {
  text-decoration: underline;
}

/* 投稿リスト */
.post-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.post-item {
  margin-bottom: 20px;
  padding-bottom: 20px;
  border-bottom: 1px solid #CCCCDD;
}

.post-item:last-child {
  border-bottom: none;
}

.post-item-title {
  font-size: 16px;
  margin-bottom: 8px;
  font-weight: bold;
}

.post-item-title a {
  color: #4444AA;
  text-decoration: none;
}

.post-item-title a:hover {
  text-decoration: underline;
  color: #6666AA;
}

.post-item-date {
  font-size: 11px;
  color: #6666AA;
  display: block;
  margin-bottom: 10px;
}

.post-item-summary {
  color: #333366;
  font-size: 12px;
  line-height: 22px;
}

.no-posts {
  color: #6666AA;
  font-style: italic;
  text-align: center;
  padding: 40px;
}

.recent-posts h2 {
  font-size: 18px;
  color: #4444AA;
  border-bottom: 2px solid #AAAACC;
  padding-bottom: 10px;
  margin-bottom: 20px;
}

/* 個別投稿 */
.post-header {
  margin-bottom: 30px;
  padding-bottom: 20px;
  border-bottom: 2px solid #6666AA;
}

.post-title {
  font-size: 24px;
  color: #4444AA;
  margin-bottom: 15px;
  font-weight: bold;
}

.post-meta {
  font-size: 11px;
  color: #4444AA;
  padding: 10px;
  background-color: #DDDDEE;
  border-left: 3px solid #6666AA;
}

.post-meta time {
  display: inline-block;
  margin-right: 15px;
}

.tags {
  margin-top: 0;
  margin-bottom: 30px;
}

.tag {
  display: inline-block;
  margin-right: 3px;
  margin-bottom: 3px;
  background: none;
  color: #4444AA;
  text-decoration: none;
  font-size: 10px;
  border: none;
  padding: 0;
}

.tag::before {
  content: '#';
}

.tag:hover {
  color: #333366;
  background: none;
  text-decoration: underline;
}

.post-content {
  margin-bottom: 40px;
}

/* コンテンツ内要素 */
.post-content h2,
.post-content h3,
.post-content h4 {
  color: #4444AA;
  margin-top: 26px;
  margin-bottom: 13px;
  font-weight: bold;
}

.post-content h2 {
  font-size: 18px;
  border-bottom: 2px solid #AAAACC;
  padding-bottom: 10px;
}

.post-content h3 {
  font-size: 14px;
}

.post-content p {
  margin-bottom: 24px;
}

.post-content a {
  color: #4444AA;
  text-decoration: underline;
}

.post-content a:hover {
  color: #6666AA;
  background-color: #DDDDEE;
}

.post-content ul,
.post-content ol {
  margin-left: 30px;
  margin-bottom: 24px;
}

.post-content li {
  margin-bottom: 12px;
}

.post-content pre {
  background-color: #333366;
  color: #CCCCDD;
  padding: 15px;
  border: 2px solid #6666AA;
  overflow-x: auto;
  margin-bottom: 24px;
  font-family: 'Courier New', 'MS Gothic', monospace;
  font-size: 11px;
  line-height: 22px;
}

.post-content code {
  font-family: 'Courier New', 'MS Gothic', monospace;
}

.post-content p code,
.post-content li code {
  background-color: #DDDDEE;
  color: #333366;
  padding: 2px 6px;
  border: 1px solid #AAAACC;
  font-size: 11px;
}

.post-content img {
  max-width: 100%;
  height: auto;
  border: 2px solid #6666AA;
  margin-bottom: 24px;
  cursor: zoom-in;
}

.showcase-image img {
  cursor: zoom-in;
}

/* ライトボックス */
.lightbox-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(30, 30, 30, 0.85);
  z-index: 9999;
  cursor: zoom-out;
  justify-content: center;
  align-items: center;
}

.lightbox-overlay.active {
  display: flex;
}

.lightbox-img {
  max-width: 90vw;
  max-height: 90vh;
  object-fit: contain;
  border: 2px solid #AAAACC;
}

.post-content blockquote {
  border-left: 3px solid #6666AA;
  padding: 15px;
  margin-left: 0;
  margin-bottom: 24px;
  color: #4444AA;
  font-style: italic;
  background-color: #DDDDEE;
}

.post-content hr {
  border: none;
  border-top: 2px solid #AAAACC;
  margin: 30px 0;
}

.post-content table {
  border-collapse: collapse;
  width: 100%;
  margin-bottom: 24px;
  border: 2px solid #6666AA;
}

.post-content th,
.post-content td {
  border: 1px solid #AAAACC;
  padding: 8px;
  text-align: left;
}

.post-content th {
  background-color: #6666AA;
  color: #EEEEF5;
  font-weight: bold;
}

.post-content td {
  background-color: #FFFFFF;
}

/* 投稿ナビゲーション */
.post-nav {
  display: flex;
  justify-content: space-between;
  gap: 20px;
}

.post-nav-top {
  margin-bottom: 20px;
  padding-bottom: 15px;
  border-bottom: 1px solid #CCCCDD;
}

.post-nav-bottom {
  margin-top: 40px;
  padding-top: 20px;
  border-top: 2px solid #AAAACC;
}

.nav-item {
  flex: 1;
}

.nav-item a {
  color: #4444AA;
  text-decoration: none;
  font-size: 12px;
  display: block;
}

.nav-item a:hover .nav-title {
  text-decoration: underline;
}

.nav-arrow {
  display: block;
  font-size: 14px;
  margin-bottom: 4px;
}

.nav-title {
  display: block;
}

.nav-prev {
  text-align: left;
}

.nav-next {
  text-align: right;
}

/* リストページ */
.page-header {
  margin-bottom: 30px;
  padding-bottom: 20px;
  border-bottom: 2px solid #6666AA;
}

.page-header h1 {
  font-size: 24px;
  color: #4444AA;
  margin-bottom: 10px;
  font-weight: bold;
}

.page-description {
  color: #4444AA;
  font-size: 12px;
}

/* スクロールバー */
::-webkit-scrollbar {
  width: 12px;
}

::-webkit-scrollbar-track {
  background: #EEEEF5;
}

::-webkit-scrollbar-thumb {
  background: #6666AA;
  border: 2px solid #EEEEF5;
}

::-webkit-scrollbar-thumb:hover {
  background: #4444AA;
}

/* About ページ */
.about-page {
  max-width: 700px;
}

.page-content h2,
.page-content h3,
.page-content h4 {
  color: #4444AA;
  margin-top: 26px;
  margin-bottom: 13px;
  font-weight: bold;
}

.page-content h2 {
  font-size: 18px;
  border-bottom: 2px solid #AAAACC;
  padding-bottom: 10px;
}

.page-content h3 {
  font-size: 14px;
}

.page-content p {
  margin-bottom: 24px;
}

.page-content ul,
.page-content ol {
  margin-left: 30px;
  margin-bottom: 24px;
}

.page-content li {
  margin-bottom: 12px;
}

.page-content a {
  color: #4444AA;
  text-decoration: underline;
}

.page-content a:hover {
  color: #6666AA;
  background-color: #DDDDEE;
}

.page-content strong {
  font-weight: bold;
  color: #333366;
}

/* Taxonomy ページ（タグ一覧） */
.taxonomy-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 20px;
}

.taxonomy-tag {
  display: inline-block;
  padding: 4px 10px;
  color: #4444AA;
  text-decoration: none;
  font-size: 12px;
  border: 1px solid #AAAACC;
  background-color: #EEEEF5;
  transition: background-color 0.2s;
}

.taxonomy-tag:hover {
  background-color: #DDDDEE;
  border-color: #6666AA;
}

.taxonomy-tag-count {
  font-size: 10px;
  color: #6666AA;
  margin-left: 4px;
}

.taxonomy-tag-count::before {
  content: '(';
}

.taxonomy-tag-count::after {
  content: ')';
}

.no-terms {
  color: #6666AA;
  font-style: italic;
  text-align: center;
  padding: 40px;
}

/* Term ページ（個別タグ/カテゴリ） */
.term-page {
  max-width: 800px;
}

.term-description {
  color: #4444AA;
  font-size: 13px;
  margin-top: 10px;
  padding: 10px;
  background-color: #DDDDEE;
  border-left: 3px solid #6666AA;
}

.term-count {
  font-weight: bold;
  color: #6666AA;
}