/* ==========================================================================
   남양주시 조직개편 위키백과 심층 뷰어 스타일시트 (style.css)
   - 모바일 최적화 (Mobile-First & Responsive)
   - 위키백과/지식베이스 스타일 디자인 시스템
   - 라이트 모드 & 다크 모드 완전 지원
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. CSS 변수 및 테마 토큰 설정
   -------------------------------------------------------------------------- */
:root {
  /* 라이트 모드 (기본) */
  --bg-app: #f8fafc;
  --bg-surface: #ffffff;
  --bg-surface-secondary: #f1f5f9;
  --bg-surface-tertiary: #e2e8f0;
  --bg-sidebar: #ffffff;
  --border-color: #e2e8f0;
  --border-light: #f1f5f9;
  --border-focus: #38bdf8;
  
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;
  --text-inverse: #ffffff;

  --color-primary: #0284c7;        /* 남양주 블루 */
  --color-primary-hover: #0369a1;
  --color-primary-light: #e0f2fe;
  --color-accent: #0ea5e9;
  --color-accent-soft: rgba(14, 165, 233, 0.12);
  
  --color-success: #10b981;
  --color-success-bg: #ecfdf5;
  --color-warning: #f59e0b;
  --color-warning-bg: #fffbeb;
  --color-danger: #ef4444;
  --color-danger-bg: #fef2f2;
  --color-info: #6366f1;
  --color-info-bg: #eef2ff;

  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -2px rgba(0, 0, 0, 0.04);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.05);

  --font-sans: 'Pretendard', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans KR', sans-serif;
  --font-size-base: 16px;
  --font-scale: 1.10;
  --line-height-base: 1.72;
  --header-height: 64px;
  --sidebar-width: 290px;
  --toc-width: 220px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 9999px;
  --transition-fast: 0.18s ease;
  --transition-normal: 0.25s ease;
}

/* 다크 모드 */
[data-theme="dark"] {
  --bg-app: #090d16;
  --bg-surface: #131b2e;
  --bg-surface-secondary: #1a243c;
  --bg-surface-tertiary: #233150;
  --bg-sidebar: #101726;
  --border-color: #243049;
  --border-light: #1a243c;
  --border-focus: #38bdf8;

  --text-primary: #f8fafc;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;
  --text-inverse: #090d16;

  --color-primary: #38bdf8;
  --color-primary-hover: #7dd3fc;
  --color-primary-light: rgba(56, 189, 248, 0.16);
  --color-accent: #0ea5e9;
  --color-accent-soft: rgba(14, 165, 233, 0.2);

  --color-success-bg: rgba(16, 185, 129, 0.15);
  --color-warning-bg: rgba(245, 158, 11, 0.15);
  --color-danger-bg: rgba(239, 68, 68, 0.15);
  --color-info-bg: rgba(99, 102, 241, 0.15);

  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.4);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.6);
}

/* --------------------------------------------------------------------------
   2. 기본 리셋 및 전역 레이아웃
   -------------------------------------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: calc(var(--font-size-base) * var(--font-scale, 1));
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-app);
  color: var(--text-primary);
  line-height: var(--line-height-base, 1.65);
  transition: background-color var(--transition-normal), color var(--transition-normal);
  overflow-x: hidden;
  padding-top: var(--header-height);
}

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

a:hover {
  text-decoration: underline;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
  color: inherit;
}

/* --------------------------------------------------------------------------
   3. 상단 네비게이션 헤더 (Header)
   -------------------------------------------------------------------------- */
.app-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  z-index: 1000;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  background-color: rgba(255, 255, 255, 0.88);
}

[data-theme="dark"] .app-header {
  background-color: rgba(19, 27, 46, 0.88);
}

.header-left {
  display: flex;
  align-items: center;
  gap: 14px;
}

.menu-toggle-btn {
  display: flex;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.menu-toggle-btn:hover {
  background-color: var(--bg-surface-secondary);
  color: var(--color-primary);
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--text-primary);
  text-decoration: none;
}

.brand-icon {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, #0284c7, #0ea5e9);
  color: #fff;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  font-size: 14px;
  box-shadow: 0 2px 6px rgba(2, 132, 199, 0.35);
}

.brand-badge {
  font-size: 0.72rem;
  font-weight: 600;
  background-color: var(--color-primary-light);
  color: var(--color-primary);
  padding: 2px 8px;
  border-radius: var(--radius-full);
}

.header-center {
  flex: 1;
  max-width: 480px;
  margin: 0 20px;
}

.search-trigger-box {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background-color: var(--bg-surface-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  padding: 8px 16px;
  font-size: 0.9rem;
  color: var(--text-muted);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.search-trigger-box:hover {
  border-color: var(--color-primary);
  background-color: var(--bg-surface);
  box-shadow: var(--shadow-sm);
}

.search-trigger-left {
  display: flex;
  align-items: center;
  gap: 8px;
}

.search-kbd {
  font-size: 0.75rem;
  padding: 2px 6px;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  color: var(--text-muted);
}

.header-right {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* 글자 크기 스테퍼 컨트롤러 (Font Size Stepper) */
.font-size-stepper-box {
  position: relative;
  display: flex;
  align-items: center;
  background-color: var(--bg-surface-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  padding: 3px 4px;
  gap: 2px;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-fast);
}

.font-size-stepper-box:hover {
  border-color: var(--color-primary);
}

.font-step-btn {
  width: 28px;
  height: 28px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.font-step-btn:hover {
  background-color: var(--bg-surface);
  color: var(--color-primary);
  box-shadow: var(--shadow-sm);
}

.font-step-btn:active {
  transform: scale(0.92);
}

.font-size-display-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--text-primary);
  background-color: var(--bg-surface);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-fast);
}

.font-size-display-btn:hover {
  color: var(--color-primary);
  background-color: var(--color-primary-light);
}

.font-size-display-btn i {
  font-size: 11px;
  color: var(--color-primary);
}

/* 글자 크기 설정 드롭다운 팝오버 */
.font-settings-popover {
  display: none;
  position: absolute;
  top: calc(100% + 12px);
  right: 0;
  width: 290px;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  z-index: 1200;
  animation: fadeIn 0.18s ease;
  overflow: hidden;
}

.font-settings-popover.active {
  display: block;
}

.popover-header {
  padding: 14px 18px;
  background-color: var(--bg-surface-secondary);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--text-primary);
}

.popover-header i {
  color: var(--color-primary);
  margin-right: 4px;
}

.popover-close-btn {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 14px;
  transition: all var(--transition-fast);
}

.popover-close-btn:hover {
  background-color: var(--bg-surface-tertiary);
  color: var(--text-primary);
}

.popover-body {
  padding: 16px 18px;
}

.popover-section {
  margin-bottom: 16px;
}

.popover-section:last-child {
  margin-bottom: 0;
}

.popover-label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 8px;
}

.font-preset-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 6px;
}

.font-preset-grid button:last-child {
  grid-column: span 2;
}

.preset-btn {
  padding: 6px 8px;
  border-radius: var(--radius-sm);
  background-color: var(--bg-surface-secondary);
  border: 1px solid var(--border-color);
  font-size: 0.82rem;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
  text-align: center;
}

.preset-btn:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background-color: var(--bg-surface);
}

.preset-btn.active {
  background-color: var(--color-primary);
  color: #ffffff;
  border-color: var(--color-primary);
  font-weight: 700;
}

.slider-label-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 6px;
}

.slider-val-badge {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-primary);
  background-color: var(--color-primary-light);
  padding: 1px 8px;
  border-radius: var(--radius-full);
}

.font-slider {
  width: 100%;
  height: 6px;
  border-radius: 3px;
  background: var(--bg-surface-tertiary);
  outline: none;
  -webkit-appearance: none;
  cursor: pointer;
}

.font-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--color-primary);
  cursor: pointer;
  box-shadow: 0 1px 4px rgba(0,0,0,0.3);
  transition: transform 0.15s ease;
}

.font-slider::-webkit-slider-thumb:hover {
  transform: scale(1.2);
}

.line-height-toggle-box {
  display: flex;
  gap: 6px;
}

.lh-toggle-btn {
  flex: 1;
  padding: 6px 8px;
  border-radius: var(--radius-sm);
  background-color: var(--bg-surface-secondary);
  border: 1px solid var(--border-color);
  font-size: 0.82rem;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.lh-toggle-btn:hover {
  border-color: var(--color-primary);
}

.lh-toggle-btn.active {
  background-color: var(--color-primary-light);
  border-color: var(--color-primary);
  color: var(--color-primary);
  font-weight: 700;
}

.popover-footer {
  padding: 10px 18px;
  background-color: var(--bg-surface-secondary);
  border-top: 1px solid var(--border-color);
  text-align: center;
}

.popover-reset-btn {
  font-size: 0.8rem;
  color: var(--text-muted);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.popover-reset-btn:hover {
  color: var(--color-primary);
  background-color: var(--bg-surface);
}

.icon-btn {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.icon-btn:hover {
  background-color: var(--bg-surface-secondary);
  color: var(--text-primary);
}

/* --------------------------------------------------------------------------
   4. 전체 레이아웃 컨테이너 (App Container)
   -------------------------------------------------------------------------- */
.app-layout {
  display: flex;
  min-height: calc(100vh - var(--header-height));
}

/* --------------------------------------------------------------------------
   5. 좌측 계층형 인터랙티브 트리 사이드바 (Sidebar)
   -------------------------------------------------------------------------- */
.sidebar {
  width: var(--sidebar-width);
  min-width: 0;
  height: calc(100vh - var(--header-height));
  position: sticky;
  top: var(--header-height);
  background-color: var(--bg-sidebar);
  border-right: 1px solid var(--border-color);
  overflow-y: auto;
  overflow-x: hidden;
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  transition: width 0.24s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.2s ease, transform var(--transition-normal);
  z-index: 900;
}

/* 데스크탑 사이드바 접힘 상태 (Collapsed) */
.sidebar.collapsed {
  width: 0 !important;
  min-width: 0 !important;
  opacity: 0;
  pointer-events: none;
  border-right: none;
  visibility: hidden;
  overflow: hidden;
}

/* 사이드바 드래그 리사이즈 핸들 */
.sidebar-resizer {
  width: 8px;
  margin-left: -4px;
  margin-right: -4px;
  height: calc(100vh - var(--header-height));
  position: sticky;
  top: var(--header-height);
  cursor: col-resize;
  z-index: 920;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  transition: background-color var(--transition-fast);
}

.sidebar-resizer::after {
  content: "";
  width: 2px;
  height: 100%;
  background-color: transparent;
  transition: background-color var(--transition-fast);
}

.sidebar-resizer:hover::after,
body.resizing-sidebar .sidebar-resizer::after {
  background-color: var(--color-primary);
  box-shadow: 0 0 8px rgba(2, 132, 199, 0.6);
}

.sidebar.collapsed + .sidebar-resizer {
  display: none !important;
}

/* 사이드바 리사이즈 중 전역 커서 및 텍스트 선택 방지 */
body.resizing-sidebar {
  cursor: col-resize !important;
  user-select: none !important;
}

body.resizing-sidebar * {
  user-select: none !important;
  cursor: col-resize !important;
}

/* 드래그 중에는 부드러운 반응을 위해 transition 일시 해제 */
body.resizing-sidebar .sidebar {
  transition: none !important;
}

/* 사이드바 접힘 시 나타나는 화면 좌측 복귀 플로팅 탭 */
.sidebar-expand-tab {
  position: fixed;
  top: calc(var(--header-height) + 16px);
  left: 0;
  z-index: 890;
  background: var(--bg-surface);
  color: var(--color-primary);
  border: 1px solid var(--border-color);
  border-left: none;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  padding: 8px 12px 8px 8px;
  display: none;
  align-items: center;
  gap: 6px;
  font-size: 0.82rem;
  font-weight: 700;
  cursor: pointer;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-fast);
  transform: translateX(-4px);
}

.sidebar-expand-tab:hover {
  transform: translateX(0);
  background-color: var(--color-primary);
  color: #ffffff;
  border-color: var(--color-primary);
  box-shadow: var(--shadow-lg);
}

/* 사이드바가 접혔을 때 플로팅 탭 표시 */
.sidebar.collapsed ~ .sidebar-expand-tab {
  display: flex;
  animation: slideInTab 0.25s ease forwards;
}

@keyframes slideInTab {
  from { opacity: 0; transform: translateX(-16px); }
  to { opacity: 1; transform: translateX(-4px); }
}

.sidebar-header {
  padding: 16px 18px;
  border-bottom: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  justify-content: space-between;
  white-space: nowrap;
}

.sidebar-title {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
}

.sidebar-actions {
  display: flex;
  align-items: center;
  gap: 4px;
}

.tree-action-btn {
  font-size: 0.75rem;
  padding: 3px 6px;
  border-radius: 4px;
  background-color: var(--bg-surface-secondary);
  color: var(--text-secondary);
  transition: all var(--transition-fast);
  border: 1px solid transparent;
}

.tree-action-btn:hover {
  background-color: var(--color-primary-light);
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.collapse-toggle-btn {
  width: 24px;
  height: 24px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
}

/* 계층형 트리 컴포넌트 */
.tree-container {
  padding: 12px 10px;
  flex: 1;
}

.tree-node {
  margin-bottom: 2px;
}

.tree-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
  user-select: none;
}

.tree-item:hover {
  background-color: var(--bg-surface-secondary);
  color: var(--text-primary);
}

.tree-item.active {
  background-color: var(--color-primary-light);
  color: var(--color-primary);
  font-weight: 600;
}

.tree-item-content {
  display: flex;
  align-items: center;
  gap: 8px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.tree-icon {
  font-size: 14px;
  color: var(--text-muted);
  transition: transform var(--transition-fast);
  width: 16px;
  text-align: center;
}

.tree-node.expanded > .tree-item .tree-chevron {
  transform: rotate(90deg);
}

.tree-badge {
  font-size: 0.72rem;
  padding: 1px 6px;
  border-radius: var(--radius-full);
  background: var(--bg-surface-tertiary);
  color: var(--text-muted);
  font-weight: 500;
}

.tree-node.active > .tree-item .tree-badge {
  background: var(--color-primary);
  color: #fff;
}

/* 2단계 및 3단계 하위 트리 */
.tree-children {
  margin-left: 18px;
  padding-left: 8px;
  border-left: 1px dashed var(--border-color);
  display: none;
}

.tree-node.expanded > .tree-children {
  display: block;
}

.tree-child-item {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  font-size: 0.84rem;
  color: var(--text-muted);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.tree-child-item:hover {
  color: var(--text-primary);
  background-color: var(--bg-surface-secondary);
}

.tree-child-item.active {
  color: var(--color-primary);
  font-weight: 600;
}

.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(2px);
  z-index: 850;
}

/* --------------------------------------------------------------------------
   6. 중앙 메인 문서 영역 (Main Content)
   -------------------------------------------------------------------------- */
.main-wrapper {
  flex: 1;
  min-width: 0;
  display: flex;
  justify-content: center;
  padding: 28px 36px 100px 36px;
}

.main-article {
  width: 100%;
  max-width: 1080px;
}

/* 위키 표제어 헤더 */
.article-header {
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 20px;
  margin-bottom: 28px;
}

.article-category {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--color-primary);
  font-weight: 600;
  margin-bottom: 8px;
}

.article-title {
  font-size: 2.15rem;
  font-weight: 800;
  line-height: 1.25;
  color: var(--text-primary);
  margin-bottom: 12px;
  letter-spacing: -0.02em;
}

.article-subtitle {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px dashed var(--border-color);
  font-size: 0.88rem;
  color: var(--text-muted);
}

.meta-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

/* --------------------------------------------------------------------------
   7. 상단 3대 핵심 요약 대시보드 (전폭 100% 배치)
   -------------------------------------------------------------------------- */
.summary-dashboard {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 24px 28px;
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
  margin-bottom: 40px;
}

.summary-dashboard::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, #0284c7, #0ea5e9, #38bdf8);
}

/* Ⅰ. 추진 배경 및 개요 2열 레이아웃 (본문 + 우측 인포박스) */
.sec-intro-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 28px;
  align-items: start;
}

.sec-intro-text {
  min-width: 0;
}

.dashboard-title-box {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 18px;
}

.dashboard-title {
  font-size: 1.15rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-primary);
}

.dashboard-badge {
  background-color: var(--color-primary-light);
  color: var(--color-primary);
  font-size: 0.78rem;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: var(--radius-full);
}

.highlights-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.highlight-card {
  background-color: var(--bg-surface-secondary);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 18px;
  transition: all var(--transition-fast);
  cursor: pointer;
  position: relative;
  display: flex;
  flex-direction: column;
}

.highlight-card:hover {
  transform: translateY(-2px);
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
}

.card-num {
  font-size: 0.72rem;
  font-weight: 800;
  color: var(--color-primary);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 4px;
}

.card-title {
  font-size: 1.02rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text-primary);
  line-height: 1.35;
}

.card-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.55;
  flex: 1;
}

.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin-top: 12px;
}

.tag-pill {
  font-size: 0.72rem;
  padding: 2px 7px;
  border-radius: var(--radius-sm);
  background: var(--bg-surface);
  color: var(--text-muted);
  border: 1px solid var(--border-color);
}

/* --------------------------------------------------------------------------
   8. 위키 인포박스 (Wiki Infobox)
   -------------------------------------------------------------------------- */
.wiki-infobox {
  width: 100%;
  margin: 0;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  font-size: 0.88rem;
}

.infobox-header {
  background: linear-gradient(135deg, #0284c7, #0369a1);
  color: #ffffff;
  padding: 14px 16px;
  text-align: center;
  font-weight: 700;
  font-size: 1.05rem;
}

.infobox-subheader {
  background: var(--color-primary-light);
  color: var(--color-primary);
  padding: 6px 12px;
  text-align: center;
  font-size: 0.8rem;
  font-weight: 600;
  border-bottom: 1px solid var(--border-color);
}

.infobox-table {
  width: 100%;
  border-collapse: collapse;
}

.infobox-table th,
.infobox-table td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--border-light);
  line-height: 1.5;
}

.infobox-table th {
  width: 38%;
  background-color: var(--bg-surface-secondary);
  color: var(--text-secondary);
  font-weight: 600;
  text-align: left;
  vertical-align: top;
}

.infobox-table td {
  color: var(--text-primary);
}

.infobox-table tr:last-child th,
.infobox-table tr:last-child td {
  border-bottom: none;
}

/* --------------------------------------------------------------------------
   9. 위키 본문 콘텐츠 스타일 (Sections & Elements)
   -------------------------------------------------------------------------- */
.content-section {
  margin-bottom: 48px;
  scroll-margin-top: calc(var(--header-height) + 24px);
}

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 2px solid var(--border-color);
  padding-bottom: 10px;
  margin-bottom: 20px;
}

.section-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 10px;
}

.section-anchor {
  color: var(--text-muted);
  opacity: 0;
  transition: opacity var(--transition-fast);
  font-size: 0.9em;
}

.section-header:hover .section-anchor {
  opacity: 1;
}

.sub-section {
  margin-top: 28px;
  margin-bottom: 28px;
  scroll-margin-top: calc(var(--header-height) + 24px);
}

.sub-title {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.sub-title::before {
  content: "";
  display: inline-block;
  width: 4px;
  height: 16px;
  background: var(--color-primary);
  border-radius: 2px;
}

.sub-sub-title {
  font-size: 1.02rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin: 18px 0 10px 0;
}

p.content-para {
  margin-bottom: 14px;
  color: var(--text-secondary);
  line-height: 1.75;
}

/* 글머리 기호 목록 (공문서 계층: ○, ▫, -) */
.official-list {
  list-style: none;
  padding-left: 6px;
  margin-bottom: 16px;
}

.official-list li {
  position: relative;
  padding-left: 22px;
  margin-bottom: 8px;
  color: var(--text-secondary);
  line-height: 1.65;
}

.official-list li.level-1::before {
  content: "○";
  position: absolute;
  left: 0;
  color: var(--color-primary);
  font-weight: bold;
}

.official-list li.level-2 {
  padding-left: 36px;
}

.official-list li.level-2::before {
  content: "▫";
  position: absolute;
  left: 18px;
  color: var(--text-muted);
}

.official-list li.level-3 {
  padding-left: 48px;
}

.official-list li.level-3::before {
  content: "-";
  position: absolute;
  left: 34px;
  color: var(--text-muted);
}

/* 콜아웃 알림 박스 (Callout Box) */
.callout-box {
  background: var(--bg-surface-secondary);
  border-left: 4px solid var(--color-primary);
  padding: 16px 20px;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin: 20px 0;
  font-size: 0.92rem;
  line-height: 1.65;
}

.callout-box.info {
  border-left-color: var(--color-primary);
  background-color: var(--color-primary-light);
}

.callout-box.warning {
  border-left-color: var(--color-warning);
  background-color: var(--color-warning-bg);
}

.callout-title {
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 6px;
}

/* --------------------------------------------------------------------------
   10. 인터랙티브 신·구 구조 비교 위젯 (Org Change Compare)
   -------------------------------------------------------------------------- */
.compare-widget {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 20px;
  margin: 24px 0;
  box-shadow: var(--shadow-sm);
}

.compare-tabs {
  display: flex;
  gap: 8px;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 12px;
  margin-bottom: 18px;
}

.compare-tab-btn {
  padding: 8px 16px;
  border-radius: var(--radius-full);
  font-size: 0.88rem;
  font-weight: 600;
  background: var(--bg-surface-secondary);
  color: var(--text-muted);
  transition: all var(--transition-fast);
}

.compare-tab-btn:hover {
  color: var(--text-primary);
}

.compare-tab-btn.active {
  background: var(--color-primary);
  color: #ffffff;
}

.compare-pane {
  display: none;
}

.compare-pane.active {
  display: block;
}

.compare-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.compare-col {
  background: var(--bg-surface-secondary);
  border-radius: var(--radius-md);
  padding: 16px;
  border: 1px solid var(--border-light);
}

.compare-col-header {
  font-size: 0.95rem;
  font-weight: 700;
  padding-bottom: 10px;
  margin-bottom: 12px;
  border-bottom: 2px solid;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.col-before .compare-col-header {
  border-color: #94a3b8;
  color: var(--text-secondary);
}

.col-after .compare-col-header {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.compare-item-list {
  list-style: none;
  font-size: 0.86rem;
}

.compare-item-list li {
  padding: 7px 10px;
  margin-bottom: 6px;
  border-radius: 4px;
  background: var(--bg-surface);
  line-height: 1.45;
  border: 1px solid var(--border-color);
}

.compare-item-list li.deleted {
  border-left: 3px solid var(--color-danger);
  color: #ef4444;
  text-decoration: line-through;
}

.compare-item-list li.created {
  border-left: 3px solid var(--color-success);
  font-weight: 600;
}

.compare-item-list li.modified {
  border-left: 3px solid var(--color-primary);
}

/* --------------------------------------------------------------------------
   11. 데이터 테이블 스타일 (Responsive Data Tables)
   -------------------------------------------------------------------------- */
.table-responsive {
  width: 100%;
  overflow-x: auto;
  margin: 20px 0;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  background: var(--bg-surface);
  box-shadow: var(--shadow-sm);
  -webkit-overflow-scrolling: touch;
}

.wiki-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.88rem;
}

.wiki-table th,
.wiki-table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-color);
  line-height: 1.5;
}

.wiki-table th {
  background-color: var(--bg-surface-secondary);
  color: var(--text-primary);
  font-weight: 700;
  white-space: nowrap;
}

.wiki-table tbody tr:last-child td {
  border-bottom: none;
}

.wiki-table tbody tr:hover {
  background-color: var(--bg-surface-secondary);
}

.text-center { text-align: center; }
.text-right { text-align: right; }
.font-bold { font-weight: 700; }
.badge-plus {
  display: inline-block;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  background-color: var(--color-success-bg);
  color: var(--color-success);
  font-weight: 700;
  font-size: 0.82rem;
}

/* --------------------------------------------------------------------------
   12. 우측 목차 네비게이션 (TOC - Table of Contents)
   -------------------------------------------------------------------------- */
.toc-sidebar {
  width: var(--toc-width);
  position: sticky;
  top: calc(var(--header-height) + 20px);
  height: calc(100vh - var(--header-height) - 40px);
  overflow-y: auto;
  padding-left: 20px;
  display: block;
  flex-shrink: 0;
}

.toc-title {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 12px;
}

.toc-nav-list {
  list-style: none;
  font-size: 0.84rem;
}

.toc-nav-list li {
  margin-bottom: 8px;
}

.toc-link {
  color: var(--text-muted);
  display: block;
  line-height: 1.45;
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  border-left: 2px solid transparent;
  transition: all var(--transition-fast);
}

.toc-link:hover {
  color: var(--text-primary);
  text-decoration: none;
}

.toc-link.active {
  color: var(--color-primary);
  font-weight: 600;
  border-left-color: var(--color-primary);
  background-color: var(--color-primary-light);
}

/* --------------------------------------------------------------------------
   13. 실시간 통합 검색 모달 (Search Modal)
   -------------------------------------------------------------------------- */
.search-modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  z-index: 2000;
  align-items: flex-start;
  justify-content: center;
  padding-top: 80px;
}

.search-modal-overlay.active {
  display: flex;
  animation: fadeIn 0.2s ease;
}

.search-modal {
  width: 92%;
  max-width: 640px;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  max-height: 80vh;
}

.search-input-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-color);
}

.search-input-icon {
  font-size: 20px;
  color: var(--text-muted);
}

.search-input-field {
  flex: 1;
  border: none;
  outline: none;
  font-size: 1.1rem;
  background: transparent;
  color: var(--text-primary);
  font-family: inherit;
}

.search-close-btn {
  font-size: 18px;
  color: var(--text-muted);
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.search-close-btn:hover {
  background: var(--bg-surface-secondary);
}

.search-filter-bar {
  display: flex;
  gap: 8px;
  padding: 10px 20px;
  background: var(--bg-surface-secondary);
  border-bottom: 1px solid var(--border-color);
  overflow-x: auto;
}

.filter-chip {
  padding: 4px 12px;
  border-radius: var(--radius-full);
  font-size: 0.78rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  white-space: nowrap;
}

.filter-chip.active {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}

.search-results-list {
  overflow-y: auto;
  padding: 12px 16px;
  flex: 1;
}

.search-result-item {
  padding: 12px 14px;
  border-radius: var(--radius-md);
  margin-bottom: 6px;
  cursor: pointer;
  transition: all var(--transition-fast);
  border: 1px solid transparent;
}

.search-result-item:hover,
.search-result-item.selected {
  background-color: var(--bg-surface-secondary);
  border-color: var(--color-primary-light);
}

.result-item-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 4px;
}

.result-item-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
}

.result-item-category {
  font-size: 0.75rem;
  color: var(--color-primary);
  background: var(--color-primary-light);
  padding: 2px 8px;
  border-radius: 4px;
}

.result-item-snippet {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.45;
}

.search-highlight {
  background-color: #fef08a;
  color: #854d0e;
  font-weight: 700;
  padding: 0 2px;
  border-radius: 2px;
}

[data-theme="dark"] .search-highlight {
  background-color: #a16207;
  color: #fef9c3;
}

.search-empty-state {
  text-align: center;
  padding: 40px 20px;
  color: var(--text-muted);
}

.search-footer {
  padding: 10px 20px;
  border-top: 1px solid var(--border-color);
  background: var(--bg-surface-secondary);
  display: flex;
  justify-content: space-between;
  font-size: 0.78rem;
  color: var(--text-muted);
}

/* --------------------------------------------------------------------------
   14. 모바일 하단 플로팅 퀵 액션바 (Mobile Bottom Bar)
   -------------------------------------------------------------------------- */
.mobile-bottom-bar {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: 60px;
  background: var(--bg-surface);
  border-top: 1px solid var(--border-color);
  box-shadow: 0 -4px 12px rgba(0, 0, 0, 0.08);
  z-index: 1000;
  justify-content: space-around;
  align-items: center;
  padding: 0 10px;
}

.mobile-nav-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  font-size: 0.72rem;
  color: var(--text-muted);
  width: 60px;
  height: 100%;
}

.mobile-nav-btn i {
  font-size: 18px;
}

.mobile-nav-btn.active,
.mobile-nav-btn:hover {
  color: var(--color-primary);
}

/* --------------------------------------------------------------------------
   15. 미디어 쿼리 및 반응형 처리 (Responsive Design)
   -------------------------------------------------------------------------- */
/* 2400px 등 대형 와이드 화면 최적화 (황금비율 유지) */
@media (min-width: 1800px) {
  .main-article {
    max-width: 1100px;
  }
  .main-wrapper {
    padding: 32px 48px 100px 48px;
  }
}

@media (max-width: 1200px) {
  .toc-sidebar {
    display: none;
  }
}

@media (max-width: 1024px) {
  .sec-intro-layout {
    grid-template-columns: 1fr;
  }
  .wiki-infobox {
    max-width: 480px;
    margin: 24px auto 0 auto;
  }
}

@media (max-width: 992px) {
  .highlights-grid {
    grid-template-columns: 1fr;
  }
  .compare-columns {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  :root {
    --font-scale: 1.0;
  }

  body {
    padding-bottom: 70px;
  }
  
  .menu-toggle-btn {
    display: flex;
  }

  .brand-logo {
    white-space: nowrap;
    font-size: 1rem;
    gap: 6px;
  }

  .brand-badge {
    display: none; /* 모바일에서 공간 절약을 위해 숨김 */
  }

  .header-center {
    display: none; /* 모바일에서는 하단 퀵바 또는 헤더 검색 아이콘으로 오픈 */
  }

  .font-size-stepper-box {
    padding: 2px 3px;
  }

  .font-step-btn {
    width: 24px;
    height: 24px;
    font-size: 12px;
  }

  .font-size-val {
    min-width: 44px;
    font-size: 0.78rem;
    padding: 2px 4px;
  }

  .sidebar-resizer,
  .sidebar-expand-tab,
  .collapse-toggle-btn {
    display: none !important;
  }

  .sidebar {
    position: fixed;
    top: var(--header-height);
    bottom: 0;
    left: 0;
    width: 82%;
    max-width: 320px;
    height: calc(100vh - var(--header-height));
    transform: translateX(-100%);
    box-shadow: var(--shadow-xl);
  }

  .sidebar.open {
    transform: translateX(0);
  }

  .sidebar-overlay.active {
    display: block;
  }

  .mobile-bottom-bar {
    display: flex;
  }

  .main-wrapper {
    padding: 20px 16px 40px 16px;
  }

  .article-title {
    font-size: 1.65rem;
  }

  .section-title {
    font-size: 1.3rem;
  }

  .summary-dashboard {
    padding: 16px;
  }

  .search-modal-overlay {
    padding-top: 20px;
  }

  .search-modal {
    width: 96%;
    max-height: 90vh;
  }

  .font-settings-popover {
    position: fixed;
    top: auto;
    bottom: 70px;
    right: 16px;
    left: 16px;
    width: auto;
    max-width: 360px;
    margin: 0 auto;
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.25);
  }
}

/* 애니메이션 */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* 프린트 스타일 */
@media print {
  .app-header, .sidebar, .toc-sidebar, .mobile-bottom-bar, .search-modal-overlay {
    display: none !important;
  }
  body {
    padding: 0;
    background: #fff;
    color: #000;
  }
  .main-wrapper {
    padding: 0;
  }
}