/* ベース設定 */
:root {
  --color-primary: #6a5acd;
  --color-secondary: #9370db;
  --color-accent: #ff6b6b;
  --color-background: #ffffff;
  --color-text: #333333;
  --color-text-light: #666666;
  --color-border: #e0e0e0;
  --color-code-bg: #f5f7fa;
  --color-blockquote-bg: #f9f9f9;
  --color-table-header: #f5f5f5;
  --color-table-border: #e0e0e0;
  --color-table-stripe: #f9f9f9;
  --color-button-primary: #6a5acd;
  --color-button-primary-hover: #5a4abf;
  --color-button-secondary: #f0f0f0;
  --color-button-secondary-hover: #e0e0e0;
  --color-button-secondary-text: #333333;
  --color-button-secondary-text-hover: #222222;
  --font-family: "Noto Sans JP", sans-serif;
  --container-width: 1200px;
  --grid-gap: 1.5rem;
  --border-radius: 8px;
  --transition-speed: 0.3s;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  color: var(--color-text);
  background-color: var(--color-background);
  line-height: 1.6;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-speed) ease;
}

a:hover {
  color: var(--color-secondary);
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 1rem;
}

ul,
ol {
  list-style-position: inside;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* レイアウト */
#site-container {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.content-container {
  display: flex;
  flex-wrap: wrap;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 1rem;
  gap: var(--grid-gap);
}

.main-content {
  flex: 1 1 70%;
  min-width: 0;
}

.site-sidebar {
  flex: 0 1 25%;
  min-width: 250px;
}

/* ヘッダー */
.site-header {
  background-color: var(--color-background);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 1rem;
}

.site-logo-link {
  display: flex;
  flex-direction: column;
  color: var(--color-text);
  text-decoration: none;
}

.site-title {
  font-size: 1.5rem;
  font-weight: 700;
}

.site-subtitle {
  font-size: 0.875rem;
  color: var(--color-text-light);
}

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

.main-menu {
  display: flex;
  list-style: none;
  gap: 1.5rem;
}

.menu-item {
  font-weight: 500;
  color: var(--color-text);
  position: relative;
}

.menu-item:hover {
  color: var(--color-primary);
}

.menu-item:hover::after {
  content: "";
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--color-primary);
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
}

/* サムネイルグリッド */
.thumbnail-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: var(--grid-gap);
  margin-bottom: 2rem;
}

.thumbnail-item {
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  transition: transform var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
}

.thumbnail-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.thumbnail-link {
  display: block;
  color: var(--color-text);
}

.thumbnail-image-container {
  position: relative;
  padding-top: 56.25%; /* 16:9 アスペクト比 */
  overflow: hidden;
}

.thumbnail-image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-speed) ease;
}

.thumbnail-gif {
  object-fit: contain;
  background-color: #000;
}

.thumbnail-link:hover .thumbnail-image {
  transform: scale(1.05);
}

.thumbnail-title {
  padding: 0.75rem;
  font-size: 0.875rem;
  font-weight: 500;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.thumbnail-id {
  color: var(--color-text-light);
  font-size: 0.75rem;
}

/* 記事ページ */
.single-article {
  background-color: var(--color-background);
  border-radius: var(--border-radius);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  padding: 2rem;
  margin-bottom: 2rem;
}

.article-header {
  margin-bottom: 2rem;
}

.article-title {
  font-size: 1.75rem;
  margin-bottom: 0.5rem;
}

.article-date {
  display: block;
  color: var(--color-text-light);
  font-size: 0.875rem;
}

.article-preview {
  margin-bottom: 2rem;
  text-align: center;
  background-color: #000;
  border-radius: var(--border-radius);
  overflow: hidden;
}

.article-gif {
  margin: 0 auto;
  max-width: 100%;
  height: auto;
}

.article-content {
  margin-bottom: 2rem;
}

/* マークダウンコンテンツのモダンスタイリング */
.markdown-content img {
  border-radius: var(--border-radius);
  margin: 1.5rem 0;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

/* 見出し */
.markdown-content h1 {
  font-size: 2rem;
  margin-top: 2.5rem;
  margin-bottom: 1.5rem;
  padding-bottom: 0.5rem;
  border-bottom: 3px solid var(--color-primary);
  color: var(--color-primary);
}

.markdown-content h2 {
  font-size: 1.75rem;
  margin-top: 2.25rem;
  margin-bottom: 1.25rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--color-secondary);
  position: relative;
}

.markdown-content h2::before {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 100px;
  height: 2px;
  background-color: var(--color-primary);
}

.markdown-content h3 {
  font-size: 1.5rem;
  margin-top: 2rem;
  margin-bottom: 1rem;
  color: var(--color-secondary);
}

.markdown-content h4 {
  font-size: 1.25rem;
  margin-top: 1.75rem;
  margin-bottom: 0.75rem;
  color: var(--color-text);
  border-left: 3px solid var(--color-primary);
  padding-left: 0.75rem;
}

.markdown-content h5 {
  font-size: 1.1rem;
  margin-top: 1.5rem;
  margin-bottom: 0.75rem;
  color: var(--color-text);
}

.markdown-content h6 {
  font-size: 1rem;
  margin-top: 1.25rem;
  margin-bottom: 0.5rem;
  color: var(--color-text-light);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* 段落 */
.markdown-content p {
  margin-bottom: 1.25rem;
  line-height: 1.7;
}

/* リスト */
.markdown-content ul,
.markdown-content ol {
  margin: 1.25rem 0;
  padding-left: 1.5rem;
  list-style-position: outside;
}

.markdown-content ul {
  list-style-type: none;
}

.markdown-content ul li {
  position: relative;
  padding-left: 1.5rem;
  margin-bottom: 0.75rem;
}

.markdown-content ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--color-primary);
}

.markdown-content ol {
  counter-reset: item;
  list-style-type: none;
}

.markdown-content ol li {
  position: relative;
  padding-left: 2rem;
  margin-bottom: 0.75rem;
  counter-increment: item;
}

.markdown-content ol li::before {
  content: counter(item) ".";
  position: absolute;
  left: 0;
  top: 0;
  font-weight: 600;
  color: var(--color-primary);
}

.markdown-content ul ul,
.markdown-content ol ol,
.markdown-content ul ol,
.markdown-content ol ul {
  margin: 0.5rem 0 0.5rem 1rem;
}

/* テーブル */
.markdown-content table {
  width: 100%;
  margin: 2rem 0;
  border-collapse: collapse;
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.markdown-content th {
  background-color: var(--color-table-header);
  color: var(--color-text);
  font-weight: 600;
  text-align: left;
  padding: 1rem;
  border: 1px solid var(--color-table-border);
}

.markdown-content td {
  padding: 0.75rem 1rem;
  border: 1px solid var(--color-table-border);
  vertical-align: top;
}

.markdown-content tr:nth-child(even) {
  background-color: var(--color-table-stripe);
}

.markdown-content tr:hover {
  background-color: rgba(106, 90, 205, 0.05);
}

/* 引用 */
.markdown-content blockquote {
  margin: 1.5rem 0;
  padding: 1.5rem;
  border-left: 4px solid var(--color-primary);
  background-color: var(--color-blockquote-bg);
  border-radius: 0 var(--border-radius) var(--border-radius) 0;
  color: var(--color-text);
  font-style: italic;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.markdown-content blockquote p:last-child {
  margin-bottom: 0;
}

.markdown-content blockquote cite {
  display: block;
  margin-top: 0.75rem;
  font-size: 0.875rem;
  color: var(--color-text-light);
  font-style: normal;
}

/* コード */
.markdown-content code {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  font-size: 0.9em;
  background-color: var(--color-code-bg);
  padding: 0.2em 0.4em;
  border-radius: 3px;
}

.markdown-content pre {
  margin: 1.5rem 0;
  padding: 1.25rem;
  background-color: var(--color-code-bg);
  border-radius: var(--border-radius);
  overflow-x: auto;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.markdown-content pre code {
  background-color: transparent;
  padding: 0;
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--color-text);
  display: block;
}

/* 水平線 */
.markdown-content hr {
  margin: 2rem 0;
  border: 0;
  height: 1px;
  background-image: linear-gradient(to right, rgba(0, 0, 0, 0), rgba(106, 90, 205, 0.5), rgba(0, 0, 0, 0));
}

/* リンク */
.markdown-content a {
  color: var(--color-primary);
  text-decoration: none;
  border-bottom: 1px dashed var(--color-primary);
  transition: all var(--transition-speed) ease;
}

.markdown-content a:hover {
  color: var(--color-secondary);
  border-bottom: 1px solid var(--color-secondary);
}

/* 関連記事 */
.related-section {
  margin-top: 3rem;
}

.related-title {
  font-size: 1.5rem;
  margin-bottom: 1.5rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--color-border);
}

/* サイドバー */
.sidebar-content {
  position: sticky;
  top: 80px;
}

.sidebar-section {
  background-color: var(--color-background);
  border-radius: var(--border-radius);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}

.sidebar-heading {
  font-size: 1.25rem;
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--color-border);
}

.taxonomy-list {
  list-style: none;
}

.taxonomy-item {
  margin-bottom: 0.5rem;
}

.taxonomy-link {
  display: block;
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--color-border);
  transition: padding-left var(--transition-speed) ease;
}

.taxonomy-link:hover {
  padding-left: 0.5rem;
  background-color: rgba(106, 90, 205, 0.05);
}

.search-form {
  display: flex;
  gap: 0.5rem;
}

.search-input {
  flex: 1;
  padding: 0.5rem;
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  font-family: var(--font-family);
}

.search-button {
  background-color: var(--color-primary);
  color: white;
  border: none;
  border-radius: var(--border-radius);
  padding: 0.5rem 1rem;
  cursor: pointer;
  transition: background-color var(--transition-speed) ease;
}

.search-button:hover {
  background-color: var(--color-secondary);
}

/* フッター */
.site-footer {
  background-color: #f5f5f5;
  padding: 2rem 0;
  margin-top: auto;
}

.footer-container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 1rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

.footer-copyright {
  font-size: 0.875rem;
  color: var(--color-text-light);
}

.footer-menu {
  display: flex;
  list-style: none;
  gap: 1.5rem;
}

.footer-link {
  font-size: 0.875rem;
  color: var(--color-text-light);
}

.footer-link:hover {
  color: var(--color-primary);
}

/* ページネーション */
.pagination-container {
  margin: 2rem 0;
}

.pagination {
  display: flex;
  justify-content: center;
  list-style: none;
  gap: 0.5rem;
}

.page-item {
  display: inline-block;
}

.page-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  background-color: var(--color-background);
  color: var(--color-text);
  font-weight: 500;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  transition: all var(--transition-speed) ease;
}

.page-link:hover {
  background-color: var(--color-primary);
  color: white;
}

.page-item.active .page-link {
  background-color: var(--color-primary);
  color: white;
}

.page-item.disabled .page-link {
  color: var(--color-text-light);
  pointer-events: none;
}

/* ショートコード用スタイル */
/* アクションカード（FANZAボタン） */
.action-card {
  background-color: #f8f9fa;
  border-radius: var(--border-radius);
  padding: 1.5rem;
  margin: 2rem 0;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  border: 1px solid var(--color-border);
}

.action-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 1rem;
}

.action-button {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  border-radius: var(--border-radius);
  font-weight: 600;
  text-align: center;
  transition: all var(--transition-speed) ease;
  text-decoration: none;
  flex: 1;
  min-width: 200px;
}

.primary-button {
  background-color: var(--color-button-primary);
  color: white;
  box-shadow: 0 4px 6px rgba(106, 90, 205, 0.2);
}

.primary-button:hover {
  background-color: var(--color-button-primary-hover);
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 6px 8px rgba(106, 90, 205, 0.25);
}

.secondary-button {
  background-color: var(--color-button-secondary);
  color: var(--color-button-secondary-text);
  border: 1px solid var(--color-border);
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.secondary-button:hover {
  background-color: var(--color-button-secondary-hover);
  color: var(--color-button-secondary-text-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 8px rgba(0, 0, 0, 0.15);
}

.button-icon {
  margin-right: 0.5rem;
  display: flex;
  align-items: center;
}

.button-text {
  font-size: 1rem;
  color: white
}

.action-note {
  font-size: 0.75rem;
  color: var(--color-text-light);
  text-align: center;
}

.action-note p {
  margin-bottom: 0;
}

.inline-link {
  color: var(--color-primary);
  text-decoration: none;
  border-bottom: 1px dotted var(--color-primary);
  transition: all var(--transition-speed) ease;
}

.inline-link:hover {
  color: var(--color-secondary);
  border-bottom: 1px solid var(--color-secondary);
}

/* 目次スタイル */
.content-preview {
  margin-bottom: 2rem;
}

.preview-image-container {
  margin-bottom: 1.5rem;
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
}

.preview-thumbnail {
  max-width: 100%;
  height: auto;
  border-radius: var(--border-radius);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
  max-height: 400px;
  object-fit: contain;
}

.toc-container {
  background-color: #f8f9fa;
  border-radius: var(--border-radius);
  border: 1px solid var(--color-border);
  margin-bottom: 2rem;
  overflow: hidden;
}

/* コンパクトな目次スタイル */
.compact-toc .toc-header {
  padding: 0.75rem 1rem;
}

.compact-toc .toc-title {
  font-size: 1.1rem;
}

.compact-toc .toc-content.expanded {
  padding: 1rem;
}

.compact-toc #TableOfContents {
  font-size: 0.9rem;
  line-height: 1.4;
}

.compact-toc #TableOfContents ul {
  margin: 0.5rem 0;
}

.compact-toc #TableOfContents li {
  margin-bottom: 0.3rem;
}

.compact-toc #TableOfContents a {
  padding: 0.15rem 0;
}

.compact-toc #TableOfContents ul ul {
  padding-left: 1rem;
  margin: 0.3rem 0;
}

.toc-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.5rem;
  background-color: #f0f2f5;
  border-bottom: 1px solid var(--color-border);
  cursor: pointer;
}

.toc-title {
  margin: 0;
  font-size: 1.25rem;
  color: var(--color-text);
}

.toc-toggle-button {
  background: none;
  border: none;
  cursor: pointer;
  width: 24px;
  height: 24px;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.toc-toggle-icon {
  position: relative;
  width: 16px;
  height: 16px;
}

.toc-toggle-icon::before,
.toc-toggle-icon::after {
  content: "";
  position: absolute;
  background-color: var(--color-text);
  transition: transform var(--transition-speed) ease;
}

.toc-toggle-icon::before {
  top: 50%;
  left: 0;
  width: 100%;
  height: 2px;
  transform: translateY(-50%);
}

.toc-toggle-icon::after {
  top: 0;
  left: 50%;
  width: 2px;
  height: 100%;
  transform: translateX(-50%);
}

.toc-toggle-button[aria-expanded="true"] .toc-toggle-icon::after {
  transform: translateX(-50%) rotate(90deg);
  opacity: 0;
}

.toc-content {
  padding: 0 1.5rem;
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-speed) ease;
}

.toc-content.expanded {
  padding: 1.5rem;
}

.toc-content #TableOfContents ul {
  list-style: none;
  padding-left: 0;
}

.toc-content #TableOfContents ul ul {
  padding-left: 1.5rem;
}

.toc-content #TableOfContents li {
  margin-bottom: 0.5rem;
  position: relative;
}

.toc-content #TableOfContents a {
  color: var(--color-text);
  text-decoration: none;
  display: inline-block;
  padding: 0.25rem 0;
  border-bottom: 1px solid transparent;
  transition: all var(--transition-speed) ease;
}

.toc-content #TableOfContents a:hover {
  color: var(--color-primary);
  border-bottom: 1px dashed var(--color-primary);
  padding-left: 0.25rem;
}

/* レスポンシブデザイン */
@media (max-width: 992px) {
  .content-container {
    flex-direction: column;
  }

  .main-content,
  .site-sidebar {
    flex: 1 1 100%;
  }

  .sidebar-content {
    position: static;
  }

  .action-buttons {
    flex-direction: column;
  }
}

@media (max-width: 768px) {
  .thumbnail-grid {
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  }

  .single-article {
    padding: 1.5rem;
  }

  .article-title {
    font-size: 1.5rem;
  }

  .menu-toggle {
    display: block;
    position: relative;
    width: 30px;
    height: 20px;
  }

  .menu-icon,
  .menu-icon::before,
  .menu-icon::after {
    position: absolute;
    width: 100%;
    height: 2px;
    background-color: var(--color-text);
    transition: all var(--transition-speed) ease;
  }

  .menu-icon {
    top: 50%;
    transform: translateY(-50%);
  }

  .menu-icon::before,
  .menu-icon::after {
    content: "";
    left: 0;
  }

  .menu-icon::before {
    top: -8px;
  }

  .menu-icon::after {
    bottom: -8px;
  }

  .menu-toggle[aria-expanded="true"] .menu-icon {
    background-color: transparent;
  }

  .menu-toggle[aria-expanded="true"] .menu-icon::before {
    top: 0;
    transform: rotate(45deg);
  }

  .menu-toggle[aria-expanded="true"] .menu-icon::after {
    bottom: 0;
    transform: rotate(-45deg);
  }

  .main-menu {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    background-color: var(--color-background);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    padding: 1rem 0;
    display: none;
    z-index: 10;
  }

  .menu-toggle[aria-expanded="true"] + .main-menu {
    display: flex;
  }

  .menu-item {
    width: 100%;
    text-align: center;
    padding: 1rem;
    border-bottom: 1px solid var(--color-border);
  }

  .menu-item:hover::after {
    display: none;
  }

  /* マークダウン要素のモバイル対応 */
  .markdown-content table {
    display: block;
    overflow-x: auto;
    white-space: nowrap;
  }

  .markdown-content h1 {
    font-size: 1.75rem;
  }

  .markdown-content h2 {
    font-size: 1.5rem;
  }

  .markdown-content h3 {
    font-size: 1.25rem;
  }

  .action-card {
    padding: 1rem;
  }

  .preview-thumbnail {
    max-height: 300px;
  }

  .compact-toc .toc-header {
    padding: 0.6rem 0.8rem;
  }

  .compact-toc .toc-title {
    font-size: 1rem;
  }

  .compact-toc .toc-content.expanded {
    padding: 0.8rem;
  }

  .compact-toc #TableOfContents {
    font-size: 0.85rem;
  }
}

@media (max-width: 576px) {
  html {
    font-size: 14px;
  }

  .thumbnail-grid {
    grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
    gap: 1rem;
  }

  .header-container,
  .footer-container {
    flex-direction: column;
    text-align: center;
    gap: 1rem;
  }

  .site-title {
    font-size: 1.25rem;
  }

  .footer-menu {
    flex-direction: column;
    gap: 0.5rem;
  }

  .article-preview {
    margin-left: -1.5rem;
    margin-right: -1.5rem;
    border-radius: 0;
  }

  .markdown-content blockquote {
    padding: 1rem;
  }

  .toc-header {
    padding: 0.75rem 1rem;
  }

  .toc-content.expanded {
    padding: 1rem;
  }

  .preview-thumbnail {
    max-height: 250px;
  }

  .compact-toc .toc-content.expanded {
    padding: 0.7rem;
  }

  .compact-toc #TableOfContents {
    font-size: 0.8rem;
  }

  .compact-toc #TableOfContents ul ul {
    padding-left: 0.8rem;
  }
}