/* ナレッジ新規作成ビュー */
.knowledge-create-view {
  position: fixed;
  top: 0;
  left: 300px;
  right: 0;
  bottom: 0;
  background: var(--color-bg);
  z-index: 200;
  overflow: hidden;
}

.knowledge-create-container {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.knowledge-create-header {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 16px 32px;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-soft);
}

.knowledge-create-title {
  flex: 1;
  font-size: 1.3rem;
  font-weight: 600;
  margin: 0;
  color: var(--color-text);
}

.knowledge-create-subtitle {
  font-size: 0.9rem;
  color: var(--color-muted);
  margin: 4px 0 0 0;
  font-weight: 400;
}

.knowledge-create-actions {
  display: flex;
  gap: 12px;
}

.knowledge-create-back-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 16px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background: transparent;
  color: var(--color-text);
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
}

.knowledge-create-back-btn:hover {
  background: var(--color-surface);
  border-color: var(--color-accent-text);
}

.knowledge-create-save-btn {
  padding: 10px 24px;
  border: none;
  border-radius: 8px;
  background: var(--color-accent-bg);
  color: var(--color-button-text);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  box-shadow: 0 2px 8px rgba(154, 166, 228, 0.3);
}

.knowledge-create-save-btn:hover {
  background: var(--color-accent-hover);
  box-shadow: 0 4px 12px rgba(154, 166, 228, 0.4);
  transform: translateY(-1px);
}

.knowledge-create-draft-btn {
  padding: 10px 20px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background: var(--color-surface);
  color: var(--color-text);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  margin-right: 12px;
}

.knowledge-create-draft-btn:hover {
  background: var(--color-surface-alt);
  border-color: var(--color-accent);
}

.knowledge-create-body {
  flex: 1;
  display: flex;
  justify-content: center;
  overflow-y: auto;
  background: var(--color-bg);
  padding: 48px 24px 80px;
}

.knowledge-create-main,
.knowledge-detail-edit-mode,
.knowledge-detail-view-mode {
  width: 100%;
  max-width: 780px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

/* 中身が空の要素はgapを消費しないように非表示 */
.knowledge-detail-view-mode .knowledge-detail-tags:empty {
  display: none;
}

.knowledge-create-title-input {
  width: 100%;
  font-family: 'Noto Serif JP', serif !important;
  font-size: 1.6rem !important;
  font-weight: 700;
  letter-spacing: 0.05em;
  line-height: 1.4;
  border: none;
  outline: none;
  background: transparent;
  color: var(--color-text);
  padding: 0;
}

.knowledge-view-title {
  width: 100%;
  font-family: 'Noto Serif JP', serif;
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  line-height: 1.4;
  border: none;
  outline: none;
  background: transparent;
  color: var(--color-text);
  padding: 0;
}

.knowledge-create-title-input:empty::before {
  content: attr(data-placeholder);
  color: var(--color-muted);
  opacity: 0.5;
}

.knowledge-create-title-input:focus {
  outline: none;
}

.knowledge-editor-toolbar {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 5px 12px;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  border-radius: 0;
}

/* ブロックツールバー（右サイドパネル常駐） */
.knowledge-block-toolbar {
  position: fixed;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 10;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 8px;
  border-radius: 10px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-bottom: none;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.knowledge-block-toolbar .editor-divider {
  width: 100%;
  height: 1px;
  margin: 2px 0;
}

.knowledge-block-toolbar .editor-btn {
  width: 28px;
  height: 28px;
}

.knowledge-block-toolbar .editor-btn svg {
  width: 14px;
  height: 14px;
}

/* インラインツールバー（フローティング） */
.knowledge-inline-toolbar {
  position: fixed;
  z-index: 20;
  display: none;
  align-items: center;
  gap: 2px;
  padding: 4px 6px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.12);
  backdrop-filter: blur(8px);
}

.knowledge-inline-toolbar.visible {
  display: flex;
}

.knowledge-inline-toolbar .editor-btn {
  width: 28px;
  height: 28px;
}

.knowledge-inline-toolbar .editor-btn svg {
  width: 14px;
  height: 14px;
}

.editor-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  padding: 0;
  background: transparent;
  border: none;
  border-radius: 6px;
  color: var(--color-text);
  cursor: pointer;
  transition: all 0.2s ease;
}

.editor-btn svg {
  width: 16px;
  height: 16px;
}

.editor-btn:hover {
  background: var(--color-bg);
  transform: translateY(-1px);
}

.editor-btn:active {
  transform: translateY(0);
}

.editor-btn.active {
  background: var(--color-accent-bg);
  color: var(--color-button-text);
}

.editor-divider {
  width: 1px;
  height: 20px;
  background: var(--color-border);
  margin: 0 4px;
}

.knowledge-create-editor,
.knowledge-view-content {
  width: 100%;
  min-height: 350px;
  font-size: 0.95rem;
  /* 本文は文字サイズ設定に連動させる (標準 = 1.7 で従来どおり) */
  line-height: var(--base-line-height, 1.7);
  border: none;
  border-radius: 0;
  outline: none;
  background: transparent;
  color: var(--color-text);
  font-family: 'Noto Sans JP', 'Hiragino Kaku Gothic ProN', sans-serif;
  padding: 2rem 2.5rem 5rem;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* 編集エディタ */
.knowledge-create-editor {
  max-height: none;
  overflow-y: visible;
}

/* 閲覧モードはページ全体でスクロール（高さ制限なし） */
/* doc-design指針に基づく洗練されたタイポグラフィ */
.knowledge-view-content {
  max-height: none;
  overflow-y: visible;
  font-size: 0.92rem;
  line-height: 1.85;
}

/* textarea用のMarkdownエディタスタイル */
.knowledge-markdown-editor {
  resize: vertical;
  font-family: 'Menlo', 'Monaco', 'Courier New', monospace;
  font-size: 0.9rem;
  line-height: 1.8;
  tab-size: 2;
  white-space: pre-wrap;
  word-wrap: break-word;
}

.knowledge-view-content img {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  margin: 16px 0;
  display: block;
}

.knowledge-create-editor:focus {
  outline: none;
}

.knowledge-create-editor:empty::before {
  content: attr(data-placeholder);
  color: var(--color-muted);
  opacity: 0.5;
}

/* 文字カウンター */
.knowledge-char-counter {
  display: flex;
  justify-content: flex-end;
  padding: 6px 12px;
  margin-top: 2rem;
  font-size: 0.7rem;
  color: var(--color-muted);
  opacity: 0.5;
}

.knowledge-char-counter .char-count {
  font-weight: 500;
  color: var(--color-muted);
  margin-right: 2px;
}

/* 見出し・本文（編集・閲覧 統一、doc-design指針） */
.knowledge-create-editor h2,
.knowledge-view-content h2 {
  font-family: 'Noto Serif JP', serif;
  font-size: 1.3rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  line-height: 1.4;
  margin: 3rem 0 1.5rem 0;
  color: var(--color-text);
}

.knowledge-create-editor h3,
.knowledge-view-content h3 {
  font-family: 'Noto Serif JP', serif;
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  line-height: 1.4;
  margin: 2.5rem 0 1rem 0;
  color: var(--color-text);
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--color-border);
}

.knowledge-create-editor h4,
.knowledge-view-content h4 {
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  margin: 2rem 0 0.8rem 0;
  color: var(--color-text-secondary, var(--color-text));
}

.knowledge-create-editor p,
.knowledge-view-content p {
  margin: 0.8rem 0;
}

.knowledge-create-editor strong,
.knowledge-view-content strong {
  font-weight: 600;
}

.knowledge-create-editor em,
.knowledge-view-content em {
  font-style: italic;
}

.knowledge-create-editor ul,
.knowledge-create-editor ol,
.knowledge-view-content ul,
.knowledge-view-content ol {
  margin: 1rem 0;
  padding-left: 0;
  list-style: none;
}

.knowledge-create-editor li,
.knowledge-view-content li {
  padding: 0.4rem 0 0.4rem 1.2rem;
  position: relative;
  line-height: 1.8;
}

.knowledge-create-editor li > p,
.knowledge-view-content li > p {
  margin: 0;
}

.knowledge-create-editor ul > li::before,
.knowledge-view-content ul > li::before {
  content: '';
  position: absolute;
  left: 6px;
  top: 1.1rem;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--color-muted);
}

.knowledge-create-editor ol,
.knowledge-view-content ol {
  counter-reset: list-counter;
}

.knowledge-create-editor ol > li,
.knowledge-view-content ol > li {
  counter-increment: list-counter;
}

.knowledge-create-editor ol > li::before,
.knowledge-view-content ol > li::before {
  content: counter(list-counter) '.';
  position: absolute;
  left: 2px;
  top: 0.45rem;
  font-size: 0.82rem;
  color: var(--color-muted);
  font-weight: 500;
}

.knowledge-create-editor a,
.knowledge-view-content a {
  color: var(--color-accent-text);
  text-decoration: none;
  border-bottom: 1px solid rgba(var(--color-accent-rgb, 164, 178, 221), 0.3);
  transition: border-color 0.15s;
}

.knowledge-create-editor a:hover,
.knowledge-view-content a:hover {
  border-bottom-color: var(--color-accent-text);
}

.knowledge-create-editor code,
.knowledge-view-content code {
  background: rgba(0, 0, 0, 0.05);
  border: 1px solid var(--color-border);
  padding: 2px 8px;
  border-radius: 4px;
  font-family: 'Menlo', 'Monaco', 'Courier New', monospace;
  font-size: 0.85em;
}

.knowledge-create-editor pre,
.knowledge-view-content pre {
  background: var(--color-bg, #f7f7f6);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  padding: 1.2rem 1.5rem;
  margin: 1.5rem 0;
  overflow-x: auto;
}

.knowledge-create-editor pre code,
.knowledge-view-content pre code {
  background: none;
  border: none;
  padding: 0;
  font-size: 0.85rem;
  line-height: 1.6;
}

.knowledge-create-editor blockquote,
.knowledge-view-content blockquote {
  border: 1px solid var(--color-border);
  background: rgba(var(--color-accent-rgb, 101, 116, 205), 0.04);
  border-radius: 6px;
  margin: 1.5rem 0;
  padding: 0.8rem 1.2rem;
  color: var(--color-text-secondary, var(--color-muted));
  font-style: italic;
}

.knowledge-create-editor blockquote p,
.knowledge-view-content blockquote p {
  margin: 0.4rem 0;
}

.knowledge-create-editor hr,
.knowledge-view-content hr {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: 2.5rem 0;
}

.knowledge-create-editor del,
.knowledge-create-editor s,
.knowledge-view-content del,
.knowledge-view-content s {
  text-decoration: line-through;
  opacity: 0.6;
}

.knowledge-create-tags-section,
.knowledge-tags-editor-container {
  display: flex;
  flex-direction: column;
  gap: 8px;
  position: relative;
  margin: 12px 0;
  overflow: hidden;
}

.knowledge-tags-container {
  display: flex;
  flex-wrap: nowrap;
  align-items: center;
  gap: 6px;
  padding: 6px 8px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background: var(--color-surface);
  min-height: 44px;
  max-width: 100%;
  transition:
    border-color 0.2s ease,
    box-shadow 0.2s ease;
  overflow-x: auto;
  overflow-y: hidden;
  scrollbar-width: thin;
  scrollbar-color: var(--color-border) transparent;
}

/* WebKit用スクロールバースタイル */
.knowledge-tags-container::-webkit-scrollbar {
  height: 4px;
}

.knowledge-tags-container::-webkit-scrollbar-track {
  background: transparent;
}

.knowledge-tags-container::-webkit-scrollbar-thumb {
  background: var(--color-border);
  border-radius: 2px;
}

.knowledge-tags-container::-webkit-scrollbar-thumb:hover {
  background: var(--color-muted);
}

.knowledge-tags-container:focus-within {
  border-color: var(--color-accent-text);
  box-shadow: 0 0 0 3px rgba(var(--color-accent-rgb), 0.1);
}

.knowledge-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  font-size: 0.85rem;
  color: var(--color-text);
  transition: all 0.15s ease;
  flex-shrink: 0;
  white-space: nowrap;
}

.knowledge-tag:hover {
  background: var(--color-border);
}

.knowledge-tag[data-tag-id] {
  cursor: pointer;
}

.knowledge-tag-remove {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 16px;
  height: 16px;
  border: none;
  background: transparent;
  color: var(--color-muted);
  cursor: pointer;
  padding: 0;
  border-radius: 3px;
  transition: all 0.15s ease;
}

.knowledge-tag-remove:hover {
  background: var(--color-accent-bg);
  color: var(--color-button-text);
}

.knowledge-tags-input {
  flex: 1;
  min-width: 120px;
  border: none;
  outline: none;
  background: transparent;
  color: var(--color-text);
  font-size: 0.9rem;
  padding: 4px;
}

.knowledge-tags-input::placeholder {
  color: var(--color-muted);
  opacity: 0.6;
}

.knowledge-tags-dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  margin-top: 4px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  max-height: 200px;
  overflow-y: auto;
  z-index: 100;
  padding: 6px;
}

.knowledge-tags-dropdown-item {
  padding: 4px;
  cursor: pointer;
  transition: all 0.15s ease;
  display: inline-flex;
  align-items: center;
  margin: 2px;
}

.knowledge-tags-dropdown-item:hover .knowledge-tag-dropdown-chip {
  background: var(--color-surface);
  border-color: var(--color-primary);
  transform: translateY(-1px);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.knowledge-tags-dropdown-item.selected .knowledge-tag-dropdown-chip {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
}

.knowledge-tag-dropdown-chip {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  font-size: 0.8rem;
  color: var(--color-text);
  transition: all 0.2s ease;
  white-space: nowrap;
}

.knowledge-tags-dropdown-hint {
  padding: 12px;
  text-align: center;
  color: var(--color-muted);
  font-size: 0.85rem;
  font-style: italic;
}

/* 閲覧モード用タグ表示（独立行） */
.knowledge-detail-tags .knowledge-tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  font-size: 0.8rem;
  color: var(--color-text);
  transition: all 0.2s ease;
}

.knowledge-detail-tags .knowledge-tag:hover {
  background: var(--color-surface);
  border-color: var(--color-primary);
}

/* 編集モード用タグチップ（インライン表示） */
.knowledge-tag-chip {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  font-size: 0.8rem;
  color: var(--color-text);
  transition: all 0.2s ease;
}

.knowledge-tag-chip:hover {
  background: var(--color-surface);
  border-color: var(--color-primary);
}

.knowledge-tag-chip .knowledge-tag-remove {
  border: none;
  background: none;
  color: var(--color-muted);
  cursor: pointer;
  padding: 0 2px;
  margin: 0;
  font-size: 1.1rem;
  line-height: 1;
  opacity: 0.7;
  transition: opacity 0.2s ease;
}

.knowledge-tag-chip .knowledge-tag-remove:hover {
  opacity: 1;
  color: var(--color-danger);
}

/* タグコンテナのフォーカス状態 */
#knowledge-detail-tags-container:focus-within {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(var(--color-accent-rgb, 0, 123, 255), 0.1);
}

.knowledge-markdown-preview {
  width: 100%;
  min-height: 400px;
  border: 1px solid var(--color-border);
  border-radius: 12px;
  background: var(--color-surface);
  padding: 24px;
  box-shadow: var(--shadow-soft);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  line-height: 1.8;
  color: var(--color-text);
  overflow-wrap: break-word;
  white-space: pre-wrap;
}

.link-popup {
  position: absolute;
  z-index: 1000;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  box-shadow: var(--shadow-hover);
  padding: 16px;
  min-width: 320px;
}

.link-popup-content {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.link-popup-input {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  background: var(--color-bg);
  color: var(--color-text);
  font-size: 0.9rem;
  outline: none;
}

.link-popup-input:focus {
  border-color: var(--color-accent-text);
  box-shadow: 0 0 0 2px rgba(var(--color-accent-rgb), 0.1);
}

.link-popup-buttons {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
}

.link-popup-btn {
  padding: 6px 16px;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  background: var(--color-surface);
  color: var(--color-text);
  font-size: 0.9rem;
  cursor: pointer;
  transition: all 0.15s ease;
}

.link-popup-btn:hover {
  background: var(--color-bg);
}

.link-popup-btn-primary {
  background: var(--color-accent-bg);
  border-color: var(--color-accent-text);
  color: var(--color-button-text);
}

.link-popup-btn-primary:hover {
  opacity: 0.9;
}

.knowledge-create-editor mark,
.knowledge-view-content mark,
.knowledge-create-editor .highlight-text,
.knowledge-view-content .highlight-text {
  background: rgba(168, 184, 232, 0.15);
  color: inherit;
  padding: 2px 4px;
  border-radius: 4px;
}

.theme-dark .knowledge-create-editor mark,
.theme-dark .knowledge-view-content mark,
.theme-dark .knowledge-create-editor .highlight-text,
.theme-dark .knowledge-view-content .highlight-text {
  background: rgba(154, 166, 228, 0.2);
}

.knowledge-create-editor .highlight-block,
.knowledge-view-content .highlight-block {
  background: rgba(168, 184, 232, 0.1);
  padding: 12px 16px;
  border-radius: 8px;
  margin: 4px 0;
}

.theme-dark .knowledge-create-editor .highlight-block,
.theme-dark .knowledge-view-content .highlight-block {
  background: rgba(154, 166, 228, 0.15);
}

.knowledge-create-editor table,
.knowledge-view-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  border: none;
}

/* デフォルト: ミニマルスタイル（ヘッダー下線のみ） */
.knowledge-view-content th {
  font-weight: 500;
  font-size: 0.78rem;
  color: var(--color-muted);
  letter-spacing: 0.04em;
  padding: 0 0.5rem 0.6rem;
  border-bottom: 2px solid var(--color-border);
  text-align: left;
  background: none;
}

.knowledge-view-content td {
  padding: 0.55rem 0.5rem;
  border-bottom: 1px solid var(--color-border);
  vertical-align: top;
  font-size: 0.85rem;
  background: none;
}

/* 編集モードのテーブルベーススタイル（デフォルト: 罫線あり） */
.knowledge-create-editor table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0;
  border: 1px solid var(--color-border);
}

.knowledge-create-editor th,
.knowledge-create-editor td {
  border: 1px solid var(--color-border);
  padding: 8px 12px;
  text-align: left;
}

.knowledge-create-editor th {
  background: var(--color-bg);
  font-weight: 600;
}

.knowledge-create-editor td {
  background: var(--color-surface);
}

/* テーブルスタイル: ミニマル（編集モード用オーバーライド） */
.knowledge-create-editor table.table-style-minimal {
  border: none;
}

.knowledge-create-editor table.table-style-minimal th,
.knowledge-create-editor table.table-style-minimal td {
  border: none;
  border-bottom: 1px solid var(--color-border);
}

.knowledge-create-editor table.table-style-minimal th {
  background: none;
  font-weight: 500;
  font-size: 0.78rem;
  color: var(--color-muted);
  border-bottom: 2px solid var(--color-border);
}

.knowledge-create-editor table.table-style-minimal td {
  background: none;
}

/* テーブルスタイル: 罫線あり */
.knowledge-view-content table.table-style-lined {
  border: 1px solid var(--color-border);
}

.knowledge-view-content table.table-style-lined th,
.knowledge-view-content table.table-style-lined td {
  border: 1px solid var(--color-border);
  padding: 8px 12px;
}

.knowledge-view-content table.table-style-lined th {
  background: var(--color-bg);
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--color-text);
  letter-spacing: normal;
}

.knowledge-view-content table.table-style-lined td {
  background: var(--color-surface);
}

/* テーブルスタイル: ストライプ（閲覧モード） */
.knowledge-view-content table.table-style-striped th {
  border-bottom: 2px solid var(--color-border);
}

.knowledge-view-content table.table-style-striped tbody tr:nth-child(even) {
  background: rgba(0, 0, 0, 0.03);
}

/* テーブルスタイル: ストライプ（編集モード） */
.knowledge-create-editor table.table-style-striped {
  border: none;
}

.knowledge-create-editor table.table-style-striped th {
  background: none;
  border: none;
  border-bottom: 2px solid var(--color-border);
}

.knowledge-create-editor table.table-style-striped td {
  border: none;
  border-bottom: 1px solid var(--color-border);
  background: none;
}

.knowledge-create-editor table.table-style-striped tbody tr:nth-child(even) td {
  background: rgba(0, 0, 0, 0.03);
}

.knowledge-create-editor img,
.knowledge-view-content img {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  margin: 16px 0;
  display: block;
  cursor: pointer;
  transition: opacity 0.2s ease;
}

.knowledge-create-editor img:hover,
.knowledge-view-content img:hover {
  opacity: 0.9;
}

/* 画像サイズクラス */
.knowledge-create-editor img.img-size-thumbnail,
.knowledge-view-content img.img-size-thumbnail,
.knowledge-detail-content img.img-size-thumbnail {
  max-width: 150px;
}

.knowledge-create-editor img.img-size-medium,
.knowledge-view-content img.img-size-medium,
.knowledge-detail-content img.img-size-medium {
  max-width: 400px;
}

.knowledge-create-editor img.img-size-large,
.knowledge-view-content img.img-size-large,
.knowledge-detail-content img.img-size-large {
  max-width: 600px;
}

.knowledge-create-editor img.img-size-full,
.knowledge-view-content img.img-size-full,
.knowledge-detail-content img.img-size-full {
  max-width: 100%;
}

/* 画像サイズ選択UI - オーバーレイ */
.image-size-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: fadeIn 0.15s ease;
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

/* 画像サイズ選択UI - ポップアップ */
.image-size-selector {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 16px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-width: 200px;
  animation: slideIn 0.2s ease;
}

@keyframes slideIn {
  from {
    transform: translateY(-10px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

.image-size-option {
  padding: 12px 16px;
  cursor: pointer;
  border-radius: 8px;
  transition: all 0.2s ease;
  color: var(--color-text);
  font-size: 0.9375rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  border: 2px solid transparent;
}

.image-size-option:hover {
  background: var(--color-bg);
  border-color: var(--color-border);
  transform: translateX(4px);
}

.image-size-option.active {
  background: var(--color-accent);
  color: white;
  border-color: var(--color-accent);
}

.image-size-option.active:hover {
  background: var(--color-accent);
  opacity: 0.9;
}

.image-size-option svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  opacity: 0.7;
}

.image-size-option.active svg {
  opacity: 1;
}

/* ファイルリンク用のボタンスタイル */
.knowledge-create-editor .file-link,
.knowledge-view-content .file-link,
.knowledge-create-editor .pdf-link,
.knowledge-view-content .pdf-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 20px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  color: var(--color-text);
  text-decoration: none;
  transition: all 0.2s ease;
  margin: 8px 0;
  cursor: pointer;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}

.knowledge-create-editor .file-link:hover,
.knowledge-view-content .file-link:hover,
.knowledge-create-editor .pdf-link:hover,
.knowledge-view-content .pdf-link:hover {
  background: var(--color-surface);
  border-color: var(--color-accent-text);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.knowledge-create-editor .file-link::before,
.knowledge-view-content .file-link::before,
.knowledge-create-editor .pdf-link::before,
.knowledge-view-content .pdf-link::before {
  content: '';
  display: inline-block;
  width: 18px;
  height: 18px;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 24 24' fill='none' stroke='%23333' stroke-width='2' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M14 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V8z'/%3E%3Cpath d='M14 2v6h6'/%3E%3Cpath d='M9 15h6'/%3E%3Cpath d='M9 18h6'/%3E%3C/svg%3E");
  background-size: contain;
  background-repeat: no-repeat;
}

.theme-dark .knowledge-create-editor .file-link::before,
.theme-dark .knowledge-view-content .file-link::before,
.theme-dark .knowledge-create-editor .pdf-link::before,
.theme-dark .knowledge-view-content .pdf-link::before {
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 24 24' fill='none' stroke='%23eee' stroke-width='2' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M14 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V8z'/%3E%3Cpath d='M14 2v6h6'/%3E%3Cpath d='M9 15h6'/%3E%3Cpath d='M9 18h6'/%3E%3C/svg%3E");
}

/* ノートリンク用のスタイル - チャットの .note-preview-item と統一 */
.knowledge-note-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  text-decoration: none;
  transition: all 0.2s ease;
  cursor: pointer;
  margin: 4px 2px;
}

.knowledge-note-link:hover {
  border-color: var(--color-accent-text);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.knowledge-note-link-icon {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-accent-bg);
  border-radius: 6px;
  color: var(--color-button-text);
}

.knowledge-note-link-icon svg {
  width: 16px;
  height: 16px;
}

.knowledge-note-link-title {
  font-weight: 500;
  color: var(--color-text);
  font-size: 0.9rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 300px;
}

/* 削除済みノートリンク */
.knowledge-note-link--deleted {
  cursor: default;
}

.knowledge-note-link--deleted:hover {
  border-color: var(--color-border);
  box-shadow: none;
}

.table-context-menu {
  position: fixed;
  z-index: 2000;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  box-shadow: var(--shadow-hover);
  padding: 4px 0;
  min-width: 180px;
}

.context-menu-item {
  padding: 8px 16px;
  cursor: pointer;
  font-size: 0.9rem;
  color: var(--color-text);
  transition: background 0.15s ease;
}

.context-menu-item:hover {
  background: var(--color-bg);
}

.context-menu-divider {
  height: 1px;
  background: var(--color-border);
  margin: 4px 0;
}

.context-menu-label {
  padding: 4px 16px 2px;
  font-size: 0.7rem;
  color: var(--color-muted);
  font-weight: 500;
  letter-spacing: 0.03em;
}

/* ノートファイル添付スタイル */
.knowledge-pending-files {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  padding: 12px;
  background: var(--color-bg-hover);
  border-radius: 8px;
  margin-bottom: 12px;
}

.file-preview-item {
  position: relative;
  width: 120px;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  overflow: hidden;
  background: var(--color-surface);
}

.file-preview-content {
  width: 100%;
  height: 100px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg);
}

.file-preview-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.file-icon-preview {
  font-size: 3rem;
  color: var(--color-muted);
}

.file-preview-name {
  padding: 6px 8px;
  font-size: 0.75rem;
  color: var(--color-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  background: var(--color-surface);
}

.file-preview-remove {
  position: absolute;
  top: 4px;
  right: 4px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.6);
  color: var(--color-button-text);
  border: none;
  cursor: pointer;
  font-size: 0.875rem;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s ease;
}

.file-preview-remove:hover {
  background: rgba(0, 0, 0, 0.8);
}

.knowledge-editor-wrapper {
  position: relative;
}

.knowledge-editor-wrapper.drag-over {
  outline: 2px dashed var(--color-accent-border);
  outline-offset: -4px;
  background: var(--color-bg-hover);
}

/* ナレッジ詳細画面の添付ファイル表示 */
.knowledge-detail-attachments {
  margin-top: 24px;
  padding-top: 24px;
  border-top: 1px solid var(--color-border);
}

.knowledge-attachments-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 12px;
}

.knowledge-attachments-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 12px;
}

.knowledge-attachment-item {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  overflow: hidden;
  background: var(--color-surface);
  text-decoration: none;
  transition:
    transform 0.15s ease,
    box-shadow 0.15s ease;
}

.knowledge-attachment-item:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.knowledge-attachment-image {
  width: 100%;
  height: 120px;
  object-fit: cover;
}

.knowledge-attachment-icon {
  width: 100%;
  height: 120px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3.5rem;
  background: var(--color-bg);
}

.knowledge-attachment-name {
  padding: 8px 10px;
  font-size: 0.85rem;
  color: var(--color-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  background: var(--color-surface);
}

.knowledge-attachments-error {
  color: var(--color-muted);
  font-size: 0.9rem;
  padding: 12px;
  text-align: center;
}

/* 更新履歴 SidePanel (#10 Phase 1) */
.knowledge-history-loading,
.knowledge-history-empty {
  padding: 24px 12px;
  text-align: center;
  color: var(--color-muted);
  font-size: 0.875rem;
}

.knowledge-history-error {
  padding: 12px;
  color: var(--color-danger);
  font-size: 0.875rem;
}

.knowledge-history-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.knowledge-history-item + .knowledge-history-item {
  border-top: 1px solid var(--color-border);
}

.knowledge-history-item-btn {
  display: block;
  width: 100%;
  padding: 12px;
  background: transparent;
  border: none;
  text-align: left;
  cursor: pointer;
  transition: background 0.15s;
  font-family: inherit;
}

.knowledge-history-item-btn:hover {
  background: var(--color-target);
}

.knowledge-history-item-btn:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: -2px;
}

.knowledge-history-item-head {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin-bottom: 4px;
}

.knowledge-history-item-rev {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-accent);
  background: var(--color-target);
  padding: 2px 6px;
  border-radius: 3px;
}

.knowledge-history-item-time {
  font-size: 0.75rem;
  color: var(--color-muted);
}

.knowledge-history-item-meta {
  display: flex;
  gap: 8px;
  font-size: 0.8125rem;
  color: var(--color-text);
  overflow: hidden;
}

.knowledge-history-item-author {
  color: var(--color-muted);
  flex-shrink: 0;
}

.knowledge-history-item-title {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.knowledge-history-preview {
  padding: 12px;
}

.knowledge-history-back {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-bottom: 12px;
  padding: 4px 8px;
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  font-size: 0.75rem;
  color: var(--color-muted);
  cursor: pointer;
  font-family: inherit;
}

.knowledge-history-back:hover {
  background: var(--color-target);
  color: var(--color-text);
}

.knowledge-history-preview-head {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}

.knowledge-history-preview-title {
  font-size: 1rem;
  margin: 0 0 12px;
  color: var(--color-text);
}

.knowledge-history-preview-body {
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--color-text);
  word-break: break-word;
}

.knowledge-history-preview-body p {
  margin: 0.5em 0;
}

/* モード切替タブ (内容 / 差分、 #10 Phase 2) */
.knowledge-history-mode-tabs {
  display: flex;
  gap: 4px;
  margin-bottom: 12px;
  border-bottom: 1px solid var(--color-border);
}

.knowledge-history-mode-tab {
  padding: 6px 12px;
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  font-size: 0.8125rem;
  color: var(--color-muted);
  cursor: pointer;
  font-family: inherit;
  transition:
    color 0.15s,
    border-color 0.15s;
}

.knowledge-history-mode-tab:hover {
  color: var(--color-text);
}

.knowledge-history-mode-tab--active {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
}

.knowledge-history-mode-tab[disabled] {
  cursor: not-allowed;
  opacity: 0.4;
}

/* 復元ボタン (#10 Phase 3) -- 控えめな secondary、 誤操作防止のため Primary でも danger でもない */
.knowledge-history-actions {
  margin-top: 16px;
  padding-top: 12px;
  border-top: 1px solid var(--color-border);
  display: flex;
  justify-content: flex-end;
}

.knowledge-history-restore {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  font-size: 0.8125rem;
  color: var(--color-text);
  cursor: pointer;
  font-family: inherit;
  transition:
    background 0.15s,
    border-color 0.15s;
}

.knowledge-history-restore:hover {
  background: var(--color-target);
  border-color: var(--color-accent);
}

/* diff 表示 (追加=緑、 削除=赤、 #10 Phase 2) */
.knowledge-history-diff-body {
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--color-text);
  word-break: break-word;
  white-space: pre-wrap;
  font-family: var(--font-mono, ui-monospace, SFMono-Regular, Menlo, monospace);
}

.knowledge-history-diff-add {
  background: rgba(39, 174, 96, 0.18);
  color: #1e8449;
  text-decoration: none;
  padding: 0 2px;
  border-radius: 2px;
}

.knowledge-history-diff-del {
  background: rgba(192, 57, 43, 0.18);
  color: #922b21;
  text-decoration: line-through;
  padding: 0 2px;
  border-radius: 2px;
}

.theme-dark .knowledge-history-diff-add {
  background: rgba(72, 187, 120, 0.22);
  color: #6ee7b7;
}

.theme-dark .knowledge-history-diff-del {
  background: rgba(229, 62, 62, 0.22);
  color: #f8a5a5;
}

/* ============================================
   レスポンシブデザイン対応
   ============================================ */

/* タブレット (768px以下) */
@media (max-width: 768px) {
  .knowledge-create-view {
    left: 0;
  }

  .knowledge-create-header {
    padding: 12px 16px;
    gap: 12px;
  }

  .knowledge-create-title {
    font-size: 1.1rem;
  }

  .knowledge-create-body {
    padding: 24px 16px;
  }

  .knowledge-create-main,
  .knowledge-detail-edit-mode,
  .knowledge-detail-view-mode {
    max-width: 100%;
  }

  .knowledge-create-title-input,
  .knowledge-view-title {
    font-size: 1.4rem;
  }

  .knowledge-editor-toolbar {
    gap: 4px;
    padding: 4px 8px;
    overflow-x: auto;
    flex-wrap: nowrap;
  }

  .editor-btn {
    width: 28px;
    height: 28px;
    flex-shrink: 0;
  }

  .editor-btn svg {
    width: 14px;
    height: 14px;
  }

  .knowledge-create-editor,
  .knowledge-view-content,
  .knowledge-markdown-editor {
    font-size: 0.9rem;
    padding: 16px;
    min-height: 300px;
  }

  .knowledge-markdown-preview {
    padding: 16px;
    min-height: 300px;
  }

  .knowledge-attachments-grid {
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 8px;
  }
}

/* モバイル (480px以下) */
@media (max-width: 480px) {
  .knowledge-create-header {
    padding: 10px 12px;
    gap: 8px;
    flex-wrap: wrap;
  }

  .knowledge-create-title {
    font-size: 1rem;
    width: 100%;
    order: -1;
  }

  .knowledge-create-back-btn {
    padding: 8px 12px;
    font-size: 0.85rem;
    gap: 4px;
  }

  .knowledge-create-actions {
    gap: 8px;
    width: 100%;
    justify-content: flex-end;
  }

  .knowledge-create-save-btn,
  .knowledge-create-draft-btn {
    padding: 8px 16px;
    font-size: 0.85rem;
  }

  .knowledge-create-body {
    padding: 16px 12px;
  }

  .knowledge-create-title-input,
  .knowledge-view-title {
    font-size: 1.2rem;
  }

  .knowledge-editor-toolbar {
    gap: 3px;
    padding: 3px 6px;
  }

  .editor-btn {
    width: 26px;
    height: 26px;
  }

  .editor-btn svg {
    width: 13px;
    height: 13px;
  }

  .editor-divider {
    display: none;
  }

  .knowledge-create-editor {
    font-size: 0.85rem;
    padding: 12px;
    min-height: 250px;
    max-height: none;
  }

  .knowledge-markdown-editor {
    font-size: 0.85rem;
    padding: 12px;
    min-height: 250px;
    max-height: 400px;
  }

  .knowledge-view-content {
    font-size: 0.85rem;
    padding: 12px;
    min-height: 250px;
  }

  .knowledge-markdown-preview {
    padding: 12px;
    font-size: 0.85rem;
    min-height: 250px;
  }

  .knowledge-tags-container {
    padding: 4px 6px;
    min-height: 38px;
  }

  .knowledge-tag,
  .knowledge-tag-chip {
    padding: 3px 8px;
    font-size: 0.75rem;
  }

  .knowledge-attachments-grid {
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    gap: 6px;
  }

  .file-preview-item {
    width: 100px;
  }

  .file-preview-content {
    height: 80px;
  }

  .image-size-selector {
    min-width: 160px;
    padding: 12px;
  }

  .image-size-option {
    padding: 10px 12px;
    font-size: 0.875rem;
  }
}

/* デスクトップ大画面 (1200px以上) */
@media (min-width: 1200px) {
  .knowledge-create-main,
  .knowledge-detail-edit-mode,
  .knowledge-detail-view-mode {
    max-width: 900px;
  }

  .knowledge-create-editor {
    max-height: none;
  }

  .knowledge-markdown-editor {
    max-height: 600px;
  }

  .knowledge-markdown-preview {
    min-height: 500px;
  }
}

/* ノート内容コピーボタン */
.knowledge-content-wrapper {
  position: relative;
}

.knowledge-paste-btn.copied {
  color: var(--color-success, #22c55e);
}

.knowledge-copy-btn {
  position: absolute;
  top: 8px;
  right: 8px;
  background: transparent;
  border: none;
  color: rgba(var(--color-text-rgb, 128, 128, 128), 0.6);
  padding: 6px;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.15s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
}

.knowledge-copy-btn:hover {
  color: var(--color-accent-text);
  background: rgba(var(--color-accent-rgb, 101, 116, 205), 0.1);
}

.knowledge-copy-btn:active {
  transform: scale(0.95);
}

.knowledge-copy-btn.copied {
  color: var(--color-success, #22c55e);
}

.knowledge-export-btn {
  right: 38px;
}

.knowledge-pdf-btn {
  right: 68px;
}

/* ノート前後ナビゲーション */
.knowledge-navigation {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-top: 3rem;
  padding: 12px 0 2rem;
}

.knowledge-nav-btn {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 6px 12px;
  border: none;
  border-radius: 4px;
  background: transparent;
  color: var(--color-muted);
  font-size: 0.8rem;
  font-weight: 400;
  cursor: pointer;
  transition: all 0.2s ease;
}

.knowledge-nav-btn:hover:not(:disabled) {
  background: var(--color-hover);
  color: var(--color-text);
}

.knowledge-nav-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.knowledge-nav-btn svg {
  flex-shrink: 0;
  width: 14px;
  height: 14px;
}

.knowledge-nav-indicator {
  font-size: 0.75rem;
  color: var(--color-muted);
  opacity: 0.7;
  min-width: 50px;
  text-align: center;
}

/* SidePanel用ノートパネルスタイル */
.knowledge-panel-content {
  padding: 20px;
}

.knowledge-panel-title {
  margin: 0 0 8px;
  font-size: 1.2rem;
}

.knowledge-panel-meta {
  font-size: 0.8rem;
  color: var(--color-muted);
  margin-bottom: 12px;
}

.knowledge-panel-permissions {
  font-size: 0.8rem;
  color: var(--color-muted);
  margin-bottom: 8px;
}

.knowledge-panel-tags {
  margin-bottom: 12px;
}

.knowledge-panel-char-count {
  font-size: 0.75rem;
  color: var(--color-muted);
  margin-top: 16px;
}

.knowledge-panel-new-title {
  margin-bottom: 12px;
}

.knowledge-panel-new-editor {
  min-height: 200px;
}