/* Axios AI Media Wiki & Documentation Hub - Core Stylesheet */
@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root {
  /* Dark Theme (Default) */
  --bg-primary: #0b0f19;
  --bg-secondary: #111827;
  --bg-tertiary: #1e293b;
  --bg-surface: rgba(17, 24, 39, 0.75);
  --bg-surface-elevated: #1f293d;
  --bg-glass: rgba(15, 23, 42, 0.7);
  --bg-hover: rgba(255, 255, 255, 0.06);
  --bg-active: rgba(59, 130, 246, 0.15);

  --border-color: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.16);
  --border-focus: rgba(99, 102, 241, 0.5);

  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --text-inverse: #0f172a;

  --accent-primary: #3b82f6;
  --accent-primary-hover: #2563eb;
  --accent-primary-glow: rgba(59, 130, 246, 0.25);
  --accent-secondary: #8b5cf6;
  --accent-gradient: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 50%, #ec4899 100%);
  --accent-gradient-subtle: linear-gradient(135deg, rgba(59, 130, 246, 0.15), rgba(139, 92, 246, 0.15));

  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  --info: #06b6d4;

  --sidebar-width: 290px;
  --toc-width: 250px;
  --header-height: 64px;

  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.2), 0 2px 4px -2px rgba(0, 0, 0, 0.2);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.3), 0 4px 6px -4px rgba(0, 0, 0, 0.3);
  --shadow-glow: 0 0 20px rgba(59, 130, 246, 0.25);

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 9999px;
  
  --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="light"] {
  --bg-primary: #f8fafc;
  --bg-secondary: #ffffff;
  --bg-tertiary: #f1f5f9;
  --bg-surface: rgba(255, 255, 255, 0.85);
  --bg-surface-elevated: #ffffff;
  --bg-glass: rgba(255, 255, 255, 0.8);
  --bg-hover: rgba(0, 0, 0, 0.04);
  --bg-active: rgba(59, 130, 246, 0.1);

  --border-color: rgba(0, 0, 0, 0.08);
  --border-strong: rgba(0, 0, 0, 0.14);
  --border-focus: rgba(59, 130, 246, 0.5);

  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  --text-inverse: #f8fafc;

  --accent-primary: #2563eb;
  --accent-primary-hover: #1d4ed8;
  --accent-primary-glow: rgba(37, 99, 235, 0.2);
  --accent-gradient-subtle: linear-gradient(135deg, rgba(37, 99, 235, 0.08), rgba(139, 92, 246, 0.08));

  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.06), 0 2px 4px -2px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);
  --shadow-glow: 0 0 20px rgba(37, 99, 235, 0.15);
}

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

html {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  background: radial-gradient(circle at 15% 15%, rgba(59, 130, 246, 0.04), transparent 40%),
              radial-gradient(circle at 85% 85%, rgba(139, 92, 246, 0.04), transparent 40%),
              var(--bg-primary);
}

/* Scrollbar Customization */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: var(--border-strong);
  border-radius: var(--radius-full);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

/* Reading Progress Bar */
#reading-progress-bar {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 0%;
  background: var(--accent-gradient);
  z-index: 1000;
  transition: width 0.1s ease-out;
}

/* ==========================================================================
   Top Header Navigation
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  height: var(--header-height);
  background: var(--bg-glass);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-color);
  z-index: 90;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1.5rem;
  transition: border-color var(--transition-normal);
}

.header-left {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.sidebar-toggle-btn {
  display: none;
  background: transparent;
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  padding: 0.4rem 0.6rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 1.1rem;
}
.sidebar-toggle-btn:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--text-primary);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: -0.02em;
}

.brand-img-icon {
  width: 34px;
  height: 34px;
  border-radius: var(--radius-md);
  object-fit: cover;
  box-shadow: 0 2px 10px rgba(59, 130, 246, 0.35);
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.brand-icon-box {
  width: 34px;
  height: 34px;
  background: var(--accent-gradient);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  font-size: 1rem;
  box-shadow: 0 2px 8px rgba(59, 130, 246, 0.4);
}

.brand-badge {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  padding: 0.15rem 0.5rem;
  background: var(--accent-gradient-subtle);
  border: 1px solid rgba(59, 130, 246, 0.3);
  color: var(--accent-primary);
  border-radius: var(--radius-full);
  margin-left: 0.25rem;
}

.header-center {
  flex: 1;
  max-width: 540px;
  margin: 0 1.5rem;
}

.quick-search-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  padding: 0.5rem 1rem;
  border-radius: var(--radius-md);
  color: var(--text-muted);
  font-size: 0.9rem;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.quick-search-trigger:hover {
  border-color: var(--border-focus);
  background: var(--bg-surface-elevated);
  color: var(--text-secondary);
  box-shadow: var(--shadow-sm);
}

.search-hint {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.kbd-shortcut {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-strong);
  color: var(--text-secondary);
  padding: 0.15rem 0.45rem;
  border-radius: var(--radius-sm);
  box-shadow: 0 1px 0 rgba(0,0,0,0.2);
}

.header-right {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.header-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.45rem 0.85rem;
  font-size: 0.85rem;
  font-weight: 500;
  font-family: inherit;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  background: var(--bg-secondary);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.header-btn:hover {
  color: var(--text-primary);
  border-color: var(--border-strong);
  background: var(--bg-hover);
}

.header-btn.primary {
  background: var(--accent-primary);
  border-color: var(--accent-primary);
  color: #ffffff;
  box-shadow: 0 2px 10px var(--accent-primary-glow);
}

.header-btn.primary:hover {
  background: var(--accent-primary-hover);
  box-shadow: 0 4px 14px var(--accent-primary-glow);
}

.icon-btn {
  width: 36px;
  height: 36px;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  font-size: 1.05rem;
}

/* ==========================================================================
   Main Application Layout
   ========================================================================== */
.app-container {
  display: flex;
  flex: 1;
  width: 100%;
  max-width: 1600px;
  margin: 0 auto;
  min-height: calc(100vh - var(--header-height));
  position: relative;
}

/* ==========================================================================
   Left Navigation Sidebar
   ========================================================================== */
.sidebar-left {
  width: var(--sidebar-width);
  min-width: var(--sidebar-width);
  background: var(--bg-surface);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  position: sticky;
  top: var(--header-height);
  height: calc(100vh - var(--header-height));
  overflow-y: auto;
  z-index: 40;
  transition: transform var(--transition-normal);
}

.sidebar-header {
  padding: 1.25rem 1rem 0.75rem 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.sidebar-heading {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
}

.sidebar-actions-bar {
  padding: 0 0.85rem 0.75rem 0.85rem;
  display: flex;
  gap: 0.4rem;
}

.sidebar-tab-btn {
  flex: 1;
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.35rem 0.5rem;
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-align: center;
}

.sidebar-tab-btn.active {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border-color: var(--border-color);
}

.sidebar-nav-tree {
  padding: 0.5rem 0.75rem 2rem 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.nav-category-group {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.category-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.4rem 0.5rem;
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  cursor: pointer;
  border-radius: var(--radius-sm);
  user-select: none;
  transition: color var(--transition-fast);
}

.category-title:hover {
  color: var(--text-secondary);
}

.category-title-inner {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.category-chevron {
  font-size: 0.7rem;
  transition: transform var(--transition-fast);
}

.nav-category-group.collapsed .category-chevron {
  transform: rotate(-90deg);
}

.nav-category-group.collapsed .category-items {
  display: none;
}

.category-items {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding-left: 0.5rem;
  border-left: 1px solid var(--border-color);
  margin-left: 0.75rem;
}

.nav-doc-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.45rem 0.65rem;
  font-size: 0.875rem;
  color: var(--text-secondary);
  text-decoration: none;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  line-height: 1.3;
}

.nav-doc-link:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.nav-doc-link.active {
  background: var(--bg-active);
  color: var(--accent-primary);
  font-weight: 600;
  border-left: 3px solid var(--accent-primary);
  padding-left: calc(0.65rem - 3px);
}

.nav-doc-title {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  flex: 1;
}

.nav-doc-badge {
  font-size: 0.65rem;
  padding: 0.1rem 0.35rem;
  border-radius: var(--radius-sm);
  background: var(--bg-tertiary);
  color: var(--text-muted);
  font-weight: 600;
  text-transform: uppercase;
}

.nav-doc-badge.draft {
  background: rgba(245, 158, 11, 0.15);
  color: #f59e0b;
}

.nav-doc-badge.new {
  background: rgba(16, 185, 129, 0.15);
  color: #10b981;
}

/* ==========================================================================
   Main Content Area
   ========================================================================== */
.main-content-area {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  padding: 1.75rem 2.5rem 4rem 2.5rem;
}

/* Breadcrumbs */
.breadcrumb-nav {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: 1.25rem;
  flex-wrap: wrap;
}

.breadcrumb-item {
  color: var(--text-muted);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

.breadcrumb-separator {
  color: var(--border-strong);
  font-size: 0.75rem;
}

.breadcrumb-active {
  color: var(--text-secondary);
  font-weight: 500;
}

/* Document Header Card */
.doc-header-card {
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 2rem;
}

.doc-meta-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 0.85rem;
}

.doc-tags-list {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  flex-wrap: wrap;
}

.doc-tag {
  font-size: 0.72rem;
  font-weight: 600;
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-full);
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
}

.doc-actions-toolbar {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.action-icon-btn {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 0.9rem;
  transition: all var(--transition-fast);
}

.action-icon-btn:hover {
  color: var(--text-primary);
  border-color: var(--border-strong);
  background: var(--bg-hover);
}

.action-icon-btn.active {
  color: #f59e0b;
  border-color: rgba(245, 158, 11, 0.4);
  background: rgba(245, 158, 11, 0.1);
}

.doc-title {
  font-size: 2.35rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  line-height: 1.2;
  margin-bottom: 0.75rem;
}

.doc-subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 1.25rem;
}

.doc-info-bar {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  font-size: 0.82rem;
  color: var(--text-muted);
  flex-wrap: wrap;
}

.doc-info-item {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

/* Article Container */
.article-body-wrapper {
  display: flex;
  gap: 2.5rem;
  align-items: flex-start;
}

.markdown-rendered-view {
  flex: 1;
  min-width: 0;
  line-height: 1.7;
}

/* ==========================================================================
   Right Table of Contents (On this page)
   ========================================================================== */
.toc-sidebar-right {
  width: var(--toc-width);
  min-width: var(--toc-width);
  position: sticky;
  top: calc(var(--header-height) + 1.5rem);
  max-height: calc(100vh - var(--header-height) - 3rem);
  overflow-y: auto;
  padding-left: 1.25rem;
  border-left: 1px solid var(--border-color);
  font-size: 0.85rem;
}

.toc-heading {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.toc-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.toc-link {
  color: var(--text-muted);
  text-decoration: none;
  display: block;
  line-height: 1.4;
  padding: 0.2rem 0;
  transition: all var(--transition-fast);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

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

.toc-link.active {
  color: var(--accent-primary);
  font-weight: 600;
  transform: translateX(3px);
}

.toc-link.depth-3 {
  padding-left: 0.75rem;
  font-size: 0.8rem;
}

/* Doc Footer Pagination & Feedback */
.doc-footer {
  margin-top: 4rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
}

.doc-feedback-box {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.5rem;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  margin-bottom: 2rem;
}

.feedback-text {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
}

.feedback-subtext {
  font-size: 0.82rem;
  color: var(--text-muted);
  font-weight: 400;
}

.feedback-buttons {
  display: flex;
  gap: 0.5rem;
}

.feedback-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.45rem 0.9rem;
  font-size: 0.85rem;
  font-weight: 500;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
}

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

.feedback-btn.rated {
  background: var(--accent-primary);
  border-color: var(--accent-primary);
  color: #ffffff;
}

.doc-pagination {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.pagination-card {
  display: flex;
  flex-direction: column;
  padding: 1.25rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  text-decoration: none;
  transition: all var(--transition-fast);
}

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

.pagination-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 700;
  color: var(--text-muted);
  margin-bottom: 0.25rem;
}

.pagination-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
}

.pagination-card.next {
  text-align: right;
}

/* ==========================================================================
   Command Palette / Global Search Modal
   ========================================================================== */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(8px);
  z-index: 1000;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 10vh;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-fast);
}

.modal-backdrop.open {
  opacity: 1;
  visibility: visible;
}

.search-modal-container {
  width: 100%;
  max-width: 640px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5), var(--shadow-glow);
  overflow: hidden;
  transform: scale(0.96) translateY(-10px);
  transition: all var(--transition-fast);
}

.modal-backdrop.open .search-modal-container {
  transform: scale(1) translateY(0);
}

.search-input-header {
  display: flex;
  align-items: center;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border-color);
  gap: 0.75rem;
}

.search-input-header i {
  color: var(--accent-primary);
  font-size: 1.2rem;
}

.search-modal-input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  font-size: 1.05rem;
  color: var(--text-primary);
  font-family: inherit;
}

.search-modal-input::placeholder {
  color: var(--text-muted);
}

.search-results-list {
  max-height: 420px;
  overflow-y: auto;
  padding: 0.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.search-result-item {
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  text-decoration: none;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.search-result-item:hover,
.search-result-item.selected {
  background: var(--bg-tertiary);
}

.search-item-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.search-item-title {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-primary);
}

.search-item-category {
  font-size: 0.72rem;
  color: var(--text-muted);
  background: var(--bg-primary);
  padding: 0.15rem 0.45rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
}

.search-item-snippet {
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.4;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.search-highlight {
  background: rgba(59, 130, 246, 0.3);
  color: #60a5fa;
  font-weight: 600;
  padding: 0 0.15rem;
  border-radius: 2px;
}

.search-footer-bar {
  padding: 0.65rem 1.25rem;
  border-top: 1px solid var(--border-color);
  background: var(--bg-tertiary);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.75rem;
  color: var(--text-muted);
}

.search-footer-shortcuts {
  display: flex;
  gap: 1rem;
}

/* ==========================================================================
   Document Editor Modal
   ========================================================================== */
.editor-modal-container {
  width: 95vw;
  max-width: 1400px;
  height: 90vh;
  background: var(--bg-secondary);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.7);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transform: scale(0.98);
  transition: all var(--transition-fast);
}

.modal-backdrop.open .editor-modal-container {
  transform: scale(1);
}

.editor-header-bar {
  padding: 0.85rem 1.5rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-tertiary);
}

.editor-title-group {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.editor-fields-bar {
  padding: 1rem 1.5rem;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 1rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.form-label {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
}

.form-input, .form-select {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 0.9rem;
  outline: none;
  transition: border-color var(--transition-fast);
}

.form-input:focus, .form-select:focus {
  border-color: var(--accent-primary);
}

.editor-toolbar {
  padding: 0.4rem 1.5rem;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  gap: 0.25rem;
  flex-wrap: wrap;
}

.editor-tool-btn {
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-secondary);
  padding: 0.35rem 0.55rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 0.85rem;
  transition: all var(--transition-fast);
}

.editor-tool-btn:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.editor-tool-separator {
  width: 1px;
  height: 18px;
  background: var(--border-strong);
  margin: 0 0.35rem;
}

.editor-split-body {
  flex: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 0;
}

.editor-textarea {
  width: 100%;
  height: 100%;
  background: var(--bg-secondary);
  border: none;
  border-right: 1px solid var(--border-color);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 0.9rem;
  line-height: 1.6;
  padding: 1.25rem;
  resize: none;
  outline: none;
}

.editor-live-preview {
  height: 100%;
  overflow-y: auto;
  padding: 1.25rem 2rem;
  background: var(--bg-primary);
}

/* Toast Notifications */
.toast-container {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.toast {
  padding: 0.75rem 1.25rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 0.9rem;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 0.6rem;
  animation: slideUp 0.25s ease-out;
}

.toast.success i { color: var(--success); }
.toast.info i { color: var(--accent-primary); }
.toast.warning i { color: var(--warning); }
.toast.error i { color: var(--danger); }

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

/* ==========================================================================
   Responsive Breakpoints
   ========================================================================== */
@media (max-width: 1100px) {
  .toc-sidebar-right {
    display: none;
  }
}

@media (max-width: 860px) {
  .sidebar-toggle-btn {
    display: block;
  }
  .sidebar-left {
    position: fixed;
    top: var(--header-height);
    left: 0;
    bottom: 0;
    transform: translateX(-100%);
    box-shadow: var(--shadow-lg);
  }
  .sidebar-left.open {
    transform: translateX(0);
  }
  .main-content-area {
    padding: 1.5rem 1rem 3rem 1rem;
  }
  .editor-fields-bar {
    grid-template-columns: 1fr;
  }
  .editor-split-body {
    grid-template-columns: 1fr;
  }
  .editor-live-preview {
    display: none;
  }
}

/* Print Optimization */
@media print {
  .site-header, .sidebar-left, .toc-sidebar-right, .doc-feedback-box, .doc-pagination, .sidebar-toggle-btn, .action-icon-btn {
    display: none !important;
  }
  body {
    background: #ffffff !important;
    color: #000000 !important;
  }
  .main-content-area {
    padding: 0 !important;
  }
  .app-container {
    max-width: 100% !important;
  }
}