/* Notal styles */

/* ================================================================
   ON-339: Typography & Spacing Refinement
   Font: Inter | Scale: 1.250 (Major Third) | Rhythm: 4px base
   ================================================================ */

/* CSS Variables for theming */
:root {
  /* ── Typography ─────────────────────────────────────────────── */
  --font-sans: 'Inter', ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont,
    'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-mono: 'SF Mono', 'Fira Code', 'JetBrains Mono', 'Cascadia Code',
    ui-monospace, Consolas, monospace;

  /* Modular scale: 1.250 (Major Third) — base 1rem = 16px */
  --text-xs: 0.75rem;     /* 12px */
  --text-sm: 0.875rem;    /* 14px */
  --text-base: 1rem;      /* 16px */
  --text-lg: 1.125rem;    /* 18px */
  --text-xl: 1.25rem;     /* 20px */
  --text-2xl: 1.563rem;   /* 25px */
  --text-3xl: 1.953rem;   /* 31.25px */
  --text-4xl: 2.441rem;   /* 39px */

  /* Line heights */
  --leading-tight: 1.2;
  --leading-snug: 1.3;
  --leading-normal: 1.5;
  --leading-relaxed: 1.65;
  --leading-loose: 1.75;

  /* Spacing rhythm (4px base grid) */
  --space-1: 0.25rem;   /* 4px */
  --space-2: 0.5rem;    /* 8px */
  --space-3: 0.75rem;   /* 12px */
  --space-4: 1rem;      /* 16px */
  --space-5: 1.25rem;   /* 20px */
  --space-6: 1.5rem;    /* 24px */
  --space-8: 2rem;      /* 32px */
  --space-10: 2.5rem;   /* 40px */
  --space-12: 3rem;     /* 48px */

  /* Content width */
  --content-width: 720px;

  /* ── Light theme (default) ──────────────────────────────────── */
  --bg-primary: #ffffff;
  --bg-secondary: #f8f9fa;
  --bg-tertiary: #eef0f2;
  --text-primary: #1c1e21;
  --text-secondary: #4b5563;
  --text-muted: #6b7280;
  --border-color: #e2e5e9;
  --accent-color: #2563eb;
  --accent-hover: #1d4ed8;
  --success-color: #16a34a;
  --error-color: #dc2626;
  --danger-color: #dc2626;
  --danger-hover: #b91c1c;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.08), 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08), 0 2px 4px rgba(0, 0, 0, 0.04);
  --shadow-lg: 0 10px 24px rgba(0, 0, 0, 0.1), 0 4px 8px rgba(0, 0, 0, 0.05);
  --edge-color: #6b7280;
  --manual-edge-color: #8b5cf6;

  /* Diff colors */
  --diff-added-bg: color-mix(in srgb, #16a34a 8%, var(--bg-primary));
  --diff-added-border: #16a34a;
  --diff-added-text: #15803d;
  --diff-removed-bg: color-mix(in srgb, #dc2626 6%, var(--bg-primary));
  --diff-removed-border: #dc2626;
  --diff-removed-text: #b91c1c;
}

[data-theme="dark"] {
  --bg-primary: #191a1e;
  --bg-secondary: #1f2023;
  --bg-tertiary: #2a2b2f;
  --text-primary: #e4e6ea;
  --text-secondary: #b0b7c0;
  --text-muted: #71767e;
  --border-color: #2e3035;
  --accent-color: #3b82f6;
  --accent-hover: #60a5fa;
  --danger-color: #ef4444;
  --danger-hover: #f87171;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.2);
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.24), 0 1px 2px rgba(0, 0, 0, 0.16);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.3), 0 2px 4px rgba(0, 0, 0, 0.2);
  --shadow-lg: 0 10px 24px rgba(0, 0, 0, 0.4), 0 4px 8px rgba(0, 0, 0, 0.24);
  --edge-color: #9ca3af;
  --manual-edge-color: #a78bfa;

  /* Diff colors */
  --diff-added-bg: color-mix(in srgb, #4ade80 10%, var(--bg-primary));
  --diff-added-border: #4ade80;
  --diff-added-text: #4ade80;
  --diff-removed-bg: color-mix(in srgb, #f87171 8%, var(--bg-primary));
  --diff-removed-border: #f87171;
  --diff-removed-text: #f87171;
}

/* Reset */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-size: var(--text-base);
  line-height: var(--leading-relaxed);
  letter-spacing: -0.011em;
  font-feature-settings: 'cv02', 'cv03', 'cv04', 'cv11';
}

/* ON-392: Custom scrollbars — thin, rounded, theme-aware */

/* Firefox */
* {
  scrollbar-width: thin;
  scrollbar-color: color-mix(in srgb, var(--text-muted) 40%, transparent) transparent;
}

/* Webkit (Chrome, Edge, Safari) */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: color-mix(in srgb, var(--text-muted) 35%, transparent);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: color-mix(in srgb, var(--text-muted) 60%, transparent);
}

::-webkit-scrollbar-corner {
  background: transparent;
}

a {
  color: var(--accent-color);
  text-decoration: none;
}

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

/* Layout */
.app {
  min-height: 100vh;
}

.layout {
  display: flex;
  min-height: 100vh;
}

/* When the graph page is active the entire layout must be viewport-locked
   so height percentages resolve correctly down the flex chain.  Other pages
   keep min-height: 100vh and scroll normally. */
.layout:has(.graph-page) {
  height: 100vh;
  min-height: 0;
}

/* Lock layout to viewport when note page is active so .main-content
   becomes a real scroll container and sticky info-panel works. */
.layout:has(.note-layout) {
  height: 100vh;
  min-height: 0;
}

.main-content:has(.note-layout) {
  min-height: 0;
}

/* Sidebar wrapper (ON-334: resizable) */
.sidebar-wrapper {
  flex-shrink: 0;
  overflow: hidden;
  position: relative;
  display: flex;
  transition: width 0.2s ease;
  border-right: 1px solid var(--border-color);
}

/* Disable transition during drag resize */
.sidebar-resizing .sidebar-wrapper {
  transition: none;
}

/* Sidebar */
.sidebar {
  width: 100%;
  min-width: 0;
  background-color: var(--bg-secondary);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  overflow-y: auto;
  overflow-x: hidden;
}

.sidebar-header {
  padding: 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--border-color);
}

.sidebar-header-actions {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.logo {
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--text-primary);
}

.logo:hover {
  color: var(--accent-color);
}

.sidebar-search {
  padding: 0.75rem 1rem;
  position: relative;
}

.search-input-wrapper {
  position: relative;
}

.sidebar-search input {
  width: 100%;
  padding: 0.5rem 0.75rem;
  padding-right: 2rem;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-size: 0.875rem;
  box-sizing: border-box;
}

.sidebar-search input:focus {
  outline: none;
  border-color: var(--accent-color);
}

.sidebar-search input[type="search"]::-webkit-search-cancel-button,
.sidebar-search input[type="search"]::-webkit-search-decoration {
  -webkit-appearance: none;
  appearance: none;
}

/* Search clear button */
.search-clear-btn {
  position: absolute;
  right: 0.4rem;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 0.85rem;
  padding: 0.15rem 0.3rem;
  border-radius: 3px;
  line-height: 1;
}

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

/* Search dropdown */
.search-dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  margin-top: 0.25rem;
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  box-shadow: var(--shadow-md);
  max-height: 400px;
  overflow-y: auto;
  z-index: 200;
  animation: dropdown-slide-in 0.2s ease-out;
}

.search-result-item {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  width: 100%;
  padding: 0.6rem 0.75rem;
  border: none;
  border-bottom: 1px solid var(--border-color);
  background: none;
  cursor: pointer;
  text-align: left;
  color: var(--text-primary);
  font-size: 0.85rem;
}

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

.search-result-item:hover,
.search-result-active {
  background-color: var(--bg-secondary);
}

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

.search-result-title {
  font-weight: 500;
  font-size: 0.875rem;
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.search-result-relevance {
  flex-shrink: 0;
  display: flex;
  align-items: center;
}

.relevance-bar-track {
  display: block;
  width: 2.5rem;
  height: 4px;
  background-color: var(--border-color);
  border-radius: 2px;
  overflow: hidden;
}

.relevance-bar-fill {
  display: block;
  height: 100%;
  background-color: var(--accent-color);
  border-radius: 2px;
  transition: width 0.2s ease;
}

.search-result-snippet {
  font-size: 0.78rem;
  color: var(--text-muted);
  line-height: 1.4;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

.search-result-snippet mark {
  background-color: color-mix(in srgb, var(--accent-color) 25%, transparent);
  color: inherit;
  padding: 0 2px;
  border-radius: 2px;
}

.search-no-results {
  padding: 0.75rem;
  font-size: 0.8rem;
  color: var(--text-muted);
  text-align: center;
}

.sidebar-nav {
  padding: 0.5rem;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.75rem;
  border-radius: 6px;
  color: var(--text-primary);
  font-size: 0.875rem;
  cursor: pointer;
  transition: background-color 0.15s;
}

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

.nav-item.active {
  background-color: var(--accent-color);
  color: white;
}

.nav-icon {
  width: 16px;
  height: 16px;
  opacity: 0.7;
  flex-shrink: 0;
}

.nav-item.active .nav-icon {
  opacity: 1;
}

.sidebar-section {
  padding: 0.5rem 1rem 1rem;
}

.sidebar-section-title {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
  letter-spacing: 0.05em;
}

.sidebar-empty {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-style: italic;
}

/* Folder Tree */
.folder-tree {
  list-style: none;
  padding: 0;
  margin: 0;
}

.folder-node {
  list-style: none;
}

.folder-item-row {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.3rem 0.5rem;
  border-radius: 4px;
  font-size: 0.85rem;
  color: var(--text-primary);
  transition: background-color 0.15s;
}

.folder-item-row:hover {
  background-color: var(--bg-tertiary);
}

.folder-item-row.active {
  background-color: color-mix(in srgb, var(--accent-color) 7%, transparent);
  color: var(--text-primary);
}

.folder-item {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  color: inherit;
  cursor: pointer;
  flex: 1;
  min-width: 0;
  text-decoration: none;
}

.folder-toggle {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-muted);
  font-size: 0.7rem;
  width: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  padding: 0;
}

.folder-toggle:hover {
  color: var(--text-primary);
}

.folder-toggle-spacer {
  width: 1rem;
  flex-shrink: 0;
}

.folder-icon {
  font-size: 0.8rem;
  flex-shrink: 0;
}

.folder-name {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.folder-count {
  font-size: 0.7rem;
  color: var(--text-muted);
  background-color: var(--bg-tertiary);
  padding: 0 0.35rem;
  border-radius: 8px;
  flex-shrink: 0;
}

.folder-item-row.active .folder-count {
  background-color: var(--bg-tertiary);
  color: var(--text-muted);
}

.folder-children {
  list-style: none;
  padding: 0;
  margin: 0;
}

/* ON-372: Folder management UI */
.sidebar-section-add-btn {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-muted);
  font-size: 1.1rem;
  font-weight: 600;
  line-height: 1;
  padding: 0.1rem 0.35rem;
  border-radius: 4px;
  transition: color 0.15s, background-color 0.15s;
}

.sidebar-section-add-btn:hover {
  color: var(--accent-color);
  background-color: color-mix(in srgb, var(--accent-color) 10%, transparent);
}

.folder-create-input {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.2rem 0.5rem;
  margin-bottom: 0.25rem;
}

.folder-inline-input {
  flex: 1;
  padding: 0.2rem 0.4rem;
  border: 1px solid var(--accent-color);
  border-radius: 4px;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-size: 0.85rem;
  font-family: inherit;
  outline: none;
  min-width: 0;
}

.folder-actions {
  display: flex;
  gap: 0.125rem;
  margin-left: auto;
  flex-shrink: 0;
}

.folder-action-btn {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-muted);
  padding: 0.15rem;
  border-radius: 3px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color 0.15s, background-color 0.15s;
}

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

.folder-action-delete:hover {
  color: var(--error-color);
  background-color: color-mix(in srgb, var(--error-color) 10%, transparent);
}

.folder-confirm-delete {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  margin-left: auto;
  flex-shrink: 0;
  font-size: 0.75rem;
}

.folder-confirm-text {
  color: var(--error-color);
  font-weight: 500;
}

.folder-confirm-yes,
.folder-confirm-no {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 0.7rem;
  font-weight: 600;
  padding: 0.1rem 0.35rem;
  border-radius: 3px;
}

.folder-confirm-yes {
  color: var(--error-color);
}

.folder-confirm-yes:hover {
  background-color: color-mix(in srgb, var(--error-color) 12%, transparent);
}

.folder-confirm-no {
  color: var(--text-muted);
}

.folder-confirm-no:hover {
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
}

/* Page context menu (right-click on sidebar pages) */
.page-context-backdrop {
  position: fixed;
  inset: 0;
  z-index: 299;
}

.page-context-menu {
  position: fixed;
  z-index: 300;
  min-width: 180px;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
  padding: 4px 0;
  font-family: inherit;
}

.page-context-menu-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.75rem;
  border: none;
  background: none;
  width: 100%;
  text-align: left;
  cursor: pointer;
  font-family: inherit;
  font-size: 0.8rem;
  color: var(--text-primary);
  white-space: nowrap;
}

.page-context-menu-item:hover {
  background-color: color-mix(in srgb, var(--accent-color) 12%, transparent);
  color: var(--accent-color);
}

.page-context-menu-item:hover svg {
  color: var(--accent-color);
}

.page-context-menu-item svg {
  flex-shrink: 0;
  color: var(--text-muted);
}

.page-context-menu-item.danger {
  color: var(--error-color, #e53e3e);
}

.page-context-menu-item.danger svg {
  color: var(--error-color, #e53e3e);
}

.page-context-menu-item.danger:hover {
  background-color: color-mix(in srgb, var(--error-color, #e53e3e) 10%, transparent);
  color: var(--error-color, #e53e3e);
}

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

/* Tag List (sidebar) */
.tag-list {
  display: flex;
  flex-direction: column;
  gap: 0.125rem;
}

.tag-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.3rem 0.5rem;
  border: none;
  border-radius: 4px;
  background: none;
  cursor: pointer;
  font-size: 0.85rem;
  color: var(--text-primary);
  width: 100%;
  text-align: left;
  transition: background-color 0.15s;
}

.tag-item:hover {
  background-color: var(--bg-tertiary);
}

.tag-item.active {
  background-color: var(--accent-color);
  color: white;
}

.tag-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.tag-name {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.tag-count {
  font-size: 0.7rem;
  color: var(--text-muted);
}

.tag-item.active .tag-count {
  color: rgba(255, 255, 255, 0.7);
}

/* ON-373: Tag management UI */
.tag-item-wrapper {
  position: relative;
}

.tag-inline-input {
  flex: 1;
  padding: 0.1rem 0.35rem;
  border: 1px solid var(--accent-color);
  border-radius: 4px;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-size: 0.85rem;
  font-family: inherit;
  outline: none;
  min-width: 0;
}

.tag-actions {
  position: absolute;
  right: 0.25rem;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  gap: 0.125rem;
}

.tag-action-btn {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-muted);
  padding: 0.2rem;
  border-radius: 3px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color 0.15s, background-color 0.15s;
}

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

.tag-action-delete:hover {
  color: var(--error-color);
  background-color: color-mix(in srgb, var(--error-color) 10%, transparent);
}

.tag-confirm-delete {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  margin-left: auto;
  font-size: 0.75rem;
}

.tag-confirm-text {
  color: var(--error-color);
  font-weight: 500;
}

.tag-confirm-yes,
.tag-confirm-no {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 0.7rem;
  font-weight: 600;
  padding: 0.1rem 0.35rem;
  border-radius: 3px;
}

.tag-confirm-yes {
  color: var(--error-color);
}

.tag-confirm-yes:hover {
  background-color: color-mix(in srgb, var(--error-color) 12%, transparent);
}

.tag-confirm-no {
  color: var(--text-muted);
}

.tag-confirm-no:hover {
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
}

.tag-color-picker {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem;
  padding: 0.375rem 0.5rem;
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  box-shadow: var(--shadow);
  margin-top: 0.125rem;
}

.tag-color-option {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  border: 2px solid transparent;
  cursor: pointer;
  transition: border-color 0.15s, transform 0.15s;
}

.tag-color-option:hover {
  border-color: var(--text-primary);
  transform: scale(1.2);
}

/* ON-221: Date Filter */
.date-filter {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.date-filter-select,
.date-filter-field {
  width: 100%;
  padding: 0.4rem 0.6rem;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-size: 0.8rem;
  cursor: pointer;
}

.date-filter-select:focus,
.date-filter-field:focus {
  outline: none;
  border-color: var(--accent-color);
}

.date-filter-custom {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
}

.date-filter-label {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  font-size: 0.75rem;
  color: var(--text-muted);
}

.date-filter-input {
  width: 100%;
  padding: 0.35rem 0.5rem;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-size: 0.8rem;
  font-family: inherit;
}

.date-filter-input:focus {
  outline: none;
  border-color: var(--accent-color);
}

/* ON-223: Saved Searches */
.sidebar-section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.5rem;
}

.saved-search-list {
  display: flex;
  flex-direction: column;
  gap: 0.125rem;
}

.saved-search-item {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.saved-search-btn {
  flex: 1;
  display: flex;
  align-items: center;
  padding: 0.3rem 0.5rem;
  border: none;
  border-radius: 4px;
  background: none;
  cursor: pointer;
  font-size: 0.8rem;
  color: var(--text-primary);
  text-align: left;
  transition: background-color 0.15s;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.saved-search-btn:hover {
  background-color: var(--bg-tertiary);
}

.saved-search-delete {
  flex-shrink: 0;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-muted);
  font-size: 0.75rem;
  padding: 0.15rem 0.3rem;
  border-radius: 3px;
  line-height: 1;
  opacity: 0;
  transition: opacity 0.15s;
}

.saved-search-item:hover .saved-search-delete {
  opacity: 1;
}

.saved-search-delete:hover {
  color: var(--error-color);
  background-color: color-mix(in srgb, var(--error-color) 10%, transparent);
}

/* Theme Toggle */
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.375rem;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  background-color: var(--bg-primary);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s;
}

.theme-toggle:hover {
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
}

.theme-icon {
  display: block;
  width: 16px;
  height: 16px;
}

/* Main Content */
.main-content {
  flex: 1;
  padding: var(--space-8) var(--space-10);
  overflow-y: auto;
  overflow-x: hidden;
}

/* Graph page needs its parent to constrain height instead of scrolling.
   :has() scopes this so other pages keep their normal overflow-y: auto.
   height: 0 forces the flex engine to derive height from flex: 1 rather
   than from content, which prevents the SVG from pushing the container
   beyond the viewport. */
.main-content:has(.graph-page) {
  overflow: hidden;
  min-height: 0;
}

.page-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-8);
  gap: var(--space-4);
  flex-wrap: wrap;
  animation: page-fade-in 0.3s ease-out;
}

.page-header h1 {
  font-size: var(--text-2xl);
  font-weight: 700;
  line-height: var(--leading-tight);
  letter-spacing: -0.025em;
}

.page-header-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.sort-select {
  padding: 0.45rem 0.75rem;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-size: 0.85rem;
  cursor: pointer;
}

.sort-select:focus {
  outline: none;
  border-color: var(--accent-color);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.375rem 0.75rem;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-size: 0.875rem;
  font-weight: 500;
  line-height: 1.4;
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none; /* ON-392: for <a> elements using .btn */
}

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

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-sm {
  padding: 0.25rem 0.625rem;
  font-size: 0.8rem;
}

.btn-primary {
  background-color: var(--accent-color);
  border-color: var(--accent-color);
  color: white;
}

.btn-primary:hover {
  background-color: var(--accent-hover);
  border-color: var(--accent-hover);
  color: white;
}

.btn-danger {
  background-color: var(--danger-color);
  border-color: var(--danger-color);
  color: white;
}

.btn-danger:hover {
  background-color: var(--danger-hover);
  border-color: var(--danger-hover);
  color: white;
}

/* Note List */
.note-list {
  list-style: none;
}

.note-list-item {
  border-bottom: 1px solid var(--border-color);
}

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

.note-link {
  display: block;
  padding: 1rem 0;
  color: var(--text-primary);
  transition: color 0.15s;
}

.note-link:hover {
  color: var(--accent-color);
}

.note-link-content {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.note-link-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.note-title {
  font-weight: 500;
}

.note-date {
  font-size: 0.8rem;
  color: var(--text-muted);
  flex-shrink: 0;
}

.note-preview {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.4;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.note-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-top: 0.125rem;
}

/* Tag Badges */
.tag-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.125rem 0.5rem;
  border-radius: 10px;
  font-size: 0.75rem;
  font-weight: 500;
  background-color: color-mix(in srgb, var(--tag-color, #6b7280) 15%, transparent);
  color: var(--tag-color, #6b7280);
  border: 1px solid color-mix(in srgb, var(--tag-color, #6b7280) 30%, transparent);
}

.tag-badge-removable {
  padding-right: 0.25rem;
}

.tag-remove {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 0.7rem;
  color: var(--tag-color, #6b7280);
  opacity: 0.6;
  padding: 0 0.15rem;
  line-height: 1;
}

.tag-remove:hover {
  opacity: 1;
}

/* Pagination */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  margin-top: 1.5rem;
  padding: 1rem 0;
}

.pagination-info {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

/* Empty State */
.empty-state {
  text-align: center;
  padding: 3rem;
  color: var(--text-secondary);
}

/* Note Page */
.note-page {
  max-width: var(--content-width);
  margin: 0 auto;
  animation: page-fade-in 0.3s ease-out;
}

/* Breadcrumb */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.85rem;
  margin-bottom: 1rem;
  color: var(--text-muted);
}

.breadcrumb-link {
  color: var(--text-secondary);
  text-decoration: none;
  cursor: pointer;
}

.breadcrumb-link:hover {
  color: var(--accent-color);
  text-decoration: underline;
}

.breadcrumb-sep {
  color: var(--text-muted);
  user-select: none;
}

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

.breadcrumb-current {
  color: var(--text-primary);
  font-weight: 500;
}

/* Note Title (input in note page) */
/* Title row: title + save status + connection dot */
.note-title-row {
  display: flex;
  align-items: baseline;
  gap: var(--space-3);
}

.note-title-row input.note-title {
  flex: 1;
  min-width: 0;
}

.note-title-status {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-shrink: 0;
  white-space: nowrap;
  padding-top: 0.25rem;
}

input.note-title {
  width: 100%;
  font-family: var(--font-sans);
  font-size: var(--text-4xl);
  font-weight: 700;
  line-height: var(--leading-tight);
  letter-spacing: -0.03em;
  border: none;
  background: transparent;
  color: var(--text-primary);
  margin-bottom: var(--space-4);
  padding: var(--space-1) 0;
}

input.note-title:read-only {
  cursor: default;
}

input.note-title:focus {
  outline: none;
}

input.note-title::placeholder {
  color: var(--text-muted);
  opacity: 0.6;
}

/* Note Metadata Bar */
.note-meta-bar {
  display: flex;
  align-items: flex-start;
  gap: var(--space-6);
  padding: var(--space-3) 0;
  margin-bottom: var(--space-6);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  flex-wrap: wrap;
}

.note-meta-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.note-meta-tags {
  flex: 1;
  flex-wrap: wrap;
}

.meta-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 500;
  white-space: nowrap;
}

.folder-select {
  padding: 0.3rem 0.5rem;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-size: 0.85rem;
}

.folder-select:focus {
  outline: none;
  border-color: var(--accent-color);
}

/* Note Tags Inline */
.note-tags-inline {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem;
}

.tag-add-wrapper {
  position: relative;
}

.tag-add-btn {
  font-size: 0.75rem;
  padding: 0.15rem 0.5rem;
}

.tag-dropdown-backdrop {
  position: fixed;
  inset: 0;
  z-index: 99;
}

.tag-dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  margin-top: 0.25rem;
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
  min-width: 200px;
  z-index: 100;
  padding: 4px;
  animation: dropdown-enter 0.1s ease;
}

.tag-dropdown-input {
  width: 100%;
  padding: 0.4rem 0.625rem;
  border: none;
  border-bottom: 1px solid var(--border-color);
  background: transparent;
  font-size: 0.8125rem;
  color: var(--text-primary);
  outline: none;
  border-radius: 4px 4px 0 0;
  box-sizing: border-box;
}

.tag-dropdown-input::placeholder {
  color: var(--text-muted);
}

.tag-dropdown-list {
  max-height: 180px;
  overflow-y: auto;
  padding-top: 2px;
}

.tag-dropdown-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  width: 100%;
  padding: 0.4rem 0.625rem;
  border: none;
  background: none;
  cursor: pointer;
  font-size: 0.8125rem;
  color: var(--text-primary);
  text-align: left;
  border-radius: 4px;
  transition: background-color 0.1s ease;
}

.tag-dropdown-item:hover {
  background-color: var(--bg-tertiary);
}

.tag-dropdown-create {
  color: var(--accent-color);
  font-weight: 500;
}

.tag-create-plus {
  font-weight: 600;
  font-size: 0.875rem;
}

/* Note Timestamps */
.note-timestamps {
  display: flex;
  gap: var(--space-6);
  margin-top: var(--space-8);
  padding-top: var(--space-4);
  border-top: 1px solid var(--border-color);
  font-size: var(--text-xs);
  color: var(--text-muted);
  letter-spacing: 0;
}

/* ON-385: Word count / reading time */
.note-word-count {
  margin-left: auto;
}

/* Editor */
.editor-container {
  position: relative;
}

.editor-status {
  font-size: 0.75rem;
  color: var(--text-muted);
  white-space: nowrap;
}

/* ON-270: Floating Toolbar (replaces fixed editor-toolbar) */
.floating-toolbar {
  position: fixed;
  z-index: 1000;
  display: flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.375rem 0.5rem;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  background-color: var(--bg-secondary);
  box-shadow: var(--shadow-md);
  flex-wrap: nowrap;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(4px);
  transition: opacity 0.15s, visibility 0.15s, transform 0.15s;
}

.floating-toolbar-visible {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateY(0);
}

.toolbar-group {
  display: flex;
  align-items: center;
  gap: 0.125rem;
}

.toolbar-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 1.75rem;
  height: 1.75rem;
  padding: 0 0.375rem;
  border: 1px solid transparent;
  border-radius: 4px;
  background: none;
  color: var(--text-secondary);
  font-size: 0.75rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: all 0.15s;
  user-select: none;
}

.toolbar-icon {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

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

.toolbar-btn.active {
  background-color: color-mix(in srgb, var(--accent-color) 15%, transparent);
  color: var(--accent-color);
  border-color: color-mix(in srgb, var(--accent-color) 30%, transparent);
}

.toolbar-btn.active:hover {
  background-color: color-mix(in srgb, var(--accent-color) 25%, transparent);
}

.toolbar-separator {
  width: 1px;
  height: 1.25rem;
  margin: 0 0.25rem;
  background-color: var(--border-color);
}

.editor {
  min-height: 400px;
  padding: var(--space-4) 0;
  border: none;
  border-radius: 0;
  background-color: transparent;
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: var(--leading-loose);
  color: var(--text-primary);
  overflow-wrap: break-word;
  word-wrap: break-word;
}

.editor:focus {
  outline: none;
}

.editor[contenteditable="false"] {
  cursor: default;
  user-select: text;
}

/* ON-339: Vertical rhythm between editor blocks */
.editor > *,
.editor-content > * {
  margin-block: 0;
}

.editor > * + *,
.editor-content > * + * {
  margin-top: var(--space-3);
}

/* Headings in editor — modular scale with tighter line-height */
.editor h1, .editor-content h1 {
  font-size: var(--text-3xl);
  font-weight: 700;
  line-height: var(--leading-tight);
  letter-spacing: -0.025em;
  margin-top: var(--space-10);
  margin-bottom: var(--space-2);
}

.editor h2, .editor-content h2 {
  font-size: var(--text-2xl);
  font-weight: 700;
  line-height: var(--leading-tight);
  letter-spacing: -0.02em;
  margin-top: var(--space-8);
  margin-bottom: var(--space-2);
}

.editor h3, .editor-content h3 {
  font-size: var(--text-xl);
  font-weight: 600;
  line-height: var(--leading-snug);
  letter-spacing: -0.015em;
  margin-top: var(--space-6);
  margin-bottom: var(--space-1);
}

.editor h4, .editor-content h4 {
  font-size: var(--text-lg);
  font-weight: 600;
  line-height: var(--leading-snug);
  margin-top: var(--space-5);
  margin-bottom: var(--space-1);
}

.editor h5, .editor-content h5 {
  font-size: var(--text-base);
  font-weight: 600;
  line-height: var(--leading-normal);
  margin-top: var(--space-4);
}

.editor h6, .editor-content h6 {
  font-size: var(--text-sm);
  font-weight: 600;
  line-height: var(--leading-normal);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-secondary);
  margin-top: var(--space-4);
}

/* First heading in editor needs no extra top margin */
.editor > :first-child,
.editor-content > :first-child {
  margin-top: 0 !important;
}

/* Editor paragraphs */
.editor p, .editor-content p {
  line-height: var(--leading-loose);
}

/* Editor empty paragraph placeholder */
.editor > p:only-child:empty::before,
.editor-content > p:only-child:empty::before {
  content: "Type '/' for commands...";
  color: var(--text-muted);
  opacity: 0.5;
  pointer-events: none;
  font-style: normal;
}

/* Editor lists — consistent spacing */
.editor ul, .editor ol,
.editor-content ul, .editor-content ol {
  padding-left: var(--space-6);
}

.editor li, .editor-content li {
  line-height: var(--leading-relaxed);
  padding: var(--space-1) 0;
}

/* Blockquotes in editor */
.editor blockquote, .editor-content blockquote {
  border-left: 3px solid var(--accent-color);
  padding-left: var(--space-4);
  color: var(--text-secondary);
  font-style: italic;
  margin: var(--space-4) 0;
}

/* When toolbar is present, editor-container gets connected borders */
.editor-container:has(.editor-toolbar) .editor:focus {
  border-color: var(--accent-color);
}

.editor-container:has(.editor-toolbar) .editor:focus ~ .editor-toolbar,
.editor-container:has(.editor-toolbar):focus-within .editor-toolbar {
  border-color: var(--accent-color);
}

/* ON-392: Inline code — backtick `text` rendered as <code> */
.editor code:not(.code-block code),
.editor-content code:not(.code-block code) {
  font-family: var(--font-mono);
  font-size: 0.875em;
  background: var(--bg-secondary);
  padding: 0.125rem 0.375rem;
  border-radius: 3px;
  color: var(--accent-color);
  border: 1px solid var(--border-color);
}

/* ON-292: Code Block Styles */
.code-block {
  position: relative;
  margin: var(--space-4) 0;
  padding: 0;
  border-radius: 6px;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  overflow: hidden;
}

.code-block > code {
  display: block;
  padding: var(--space-4);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
  tab-size: 2;
  white-space: pre-wrap;
  word-break: break-all;
  color: var(--text-primary);
  outline: none;
}

.code-block-lang {
  position: absolute;
  top: 0.375rem;
  right: 0.5rem;
  display: inline-block;
  padding: 0.125rem 0.5rem;
  font-family: inherit;
  font-size: 0.65rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  background: color-mix(in srgb, var(--bg-primary) 60%, transparent);
  border-radius: 4px;
  cursor: pointer;
  user-select: none;
  transition: color 0.15s, background 0.15s;
}

.code-block-lang:hover {
  color: var(--accent-color);
  background: color-mix(in srgb, var(--accent-color) 10%, transparent);
}

/* ON-292: Syntax Highlighting Theme */
.hl-keyword {
  color: #d73a49;
  font-weight: 600;
}
.hl-string {
  color: #22863a;
}
.hl-comment {
  color: #6a737d;
  font-style: italic;
}
.hl-number {
  color: #005cc5;
}
.hl-function {
  color: #6f42c1;
}
.hl-type {
  color: #e36209;
}
.hl-operator {
  color: #d73a49;
}
.hl-punctuation {
  color: #586069;
}
.hl-attribute {
  color: #e36209;
}
.hl-tag {
  color: #22863a;
  font-weight: 600;
}
.hl-property {
  color: #005cc5;
}
.hl-variable {
  color: #e36209;
}
.hl-constant {
  color: #005cc5;
  font-weight: 600;
}

/* ON-292 / ON-380: Dark mode adjustments for syntax highlighting */
[data-theme="dark"] .hl-keyword { color: #ff7b72; }
[data-theme="dark"] .hl-string { color: #a5d6ff; }
[data-theme="dark"] .hl-comment { color: #8b949e; }
[data-theme="dark"] .hl-number { color: #79c0ff; }
[data-theme="dark"] .hl-function { color: #d2a8ff; }
[data-theme="dark"] .hl-type { color: #ffa657; }
[data-theme="dark"] .hl-operator { color: #ff7b72; }
[data-theme="dark"] .hl-punctuation { color: #8b949e; }
[data-theme="dark"] .hl-attribute { color: #ffa657; }
[data-theme="dark"] .hl-tag { color: #7ee787; font-weight: 600; }
[data-theme="dark"] .hl-property { color: #79c0ff; }
[data-theme="dark"] .hl-variable { color: #ffa657; }
[data-theme="dark"] .hl-constant { color: #79c0ff; }

/* ON-292: Language Picker Dropdown */
.lang-picker {
  position: absolute;
  z-index: 100;
  min-width: 140px;
  max-height: 280px;
  overflow-y: auto;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  display: flex;
  flex-direction: column;
}

.lang-picker-item {
  display: block;
  width: 100%;
  padding: 0.375rem 0.75rem;
  border: none;
  background: none;
  text-align: left;
  cursor: pointer;
  font-family: inherit;
  font-size: 0.8rem;
  color: var(--text-primary);
  border-bottom: 1px solid var(--border-color);
}

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

.lang-picker-item:hover {
  background-color: color-mix(in srgb, var(--accent-color) 12%, transparent);
  color: var(--accent-color);
}

/* ON-293: Callout / Admonition blocks */
.callout {
  position: relative;
  padding: var(--space-3) var(--space-4) var(--space-3) 2.75rem;
  margin: var(--space-4) 0;
  border-radius: 6px;
  border-left: 4px solid var(--border-color);
  background-color: var(--bg-secondary);
  min-height: 2.5rem;
}

.callout-icon {
  position: absolute;
  left: 0.75rem;
  top: 0.8rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  pointer-events: none;
}

.callout-label {
  position: absolute;
  left: 2.75rem;
  top: 0.55rem;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  opacity: 0.7;
  pointer-events: none;
}

.callout-content {
  margin-top: 1rem;
  outline: none;
  min-height: 1.2em;
}

.callout-content:empty::before {
  content: "Type callout content...";
  color: var(--text-muted);
  pointer-events: none;
}

/* Callout type: Info (blue) */
.callout-info {
  border-left-color: #3b82f6;
  background-color: color-mix(in srgb, #3b82f6 8%, var(--bg-primary));
}

.callout-info .callout-icon,
.callout-info .callout-label {
  color: #3b82f6;
}

/* Callout type: Warning (amber) */
.callout-warning {
  border-left-color: #f59e0b;
  background-color: color-mix(in srgb, #f59e0b 8%, var(--bg-primary));
}

.callout-warning .callout-icon,
.callout-warning .callout-label {
  color: #d97706;
}

/* Callout type: Tip (green) */
.callout-tip {
  border-left-color: #22c55e;
  background-color: color-mix(in srgb, #22c55e 8%, var(--bg-primary));
}

.callout-tip .callout-icon,
.callout-tip .callout-label {
  color: #16a34a;
}

/* Callout type: Error (red) */
.callout-error {
  border-left-color: #ef4444;
  background-color: color-mix(in srgb, #ef4444 8%, var(--bg-primary));
}

.callout-error .callout-icon,
.callout-error .callout-label {
  color: #ef4444;
}

/* Callout type: Note (purple/gray) */
.callout-note {
  border-left-color: #8b5cf6;
  background-color: color-mix(in srgb, #8b5cf6 8%, var(--bg-primary));
}

.callout-note .callout-icon,
.callout-note .callout-label {
  color: #7c3aed;
}

/* Dark mode overrides for callouts (ON-380) */
[data-theme="dark"] .callout-info { background-color: color-mix(in srgb, #3b82f6 12%, #1a1a1a); }
[data-theme="dark"] .callout-warning { background-color: color-mix(in srgb, #f59e0b 12%, #1a1a1a); }
[data-theme="dark"] .callout-tip { background-color: color-mix(in srgb, #22c55e 12%, #1a1a1a); }
[data-theme="dark"] .callout-error { background-color: color-mix(in srgb, #ef4444 12%, #1a1a1a); }
[data-theme="dark"] .callout-note { background-color: color-mix(in srgb, #8b5cf6 12%, #1a1a1a); }

[data-theme="dark"] .callout-info .callout-icon,
[data-theme="dark"] .callout-info .callout-label { color: #60a5fa; }

[data-theme="dark"] .callout-warning .callout-icon,
[data-theme="dark"] .callout-warning .callout-label { color: #fbbf24; }

[data-theme="dark"] .callout-tip .callout-icon,
[data-theme="dark"] .callout-tip .callout-label { color: #4ade80; }

[data-theme="dark"] .callout-error .callout-icon,
[data-theme="dark"] .callout-error .callout-label { color: #f87171; }

[data-theme="dark"] .callout-note .callout-icon,
[data-theme="dark"] .callout-note .callout-label { color: #a78bfa; }

/* Save Error Banner */
.save-error {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.6rem 1rem;
  margin-bottom: 1rem;
  background-color: color-mix(in srgb, var(--error-color) 12%, transparent);
  border: 1px solid color-mix(in srgb, var(--error-color) 30%, transparent);
  border-radius: 6px;
  color: var(--error-color);
  font-size: 0.85rem;
}

.save-error-dismiss {
  background: none;
  border: none;
  color: var(--error-color);
  cursor: pointer;
  font-size: 1rem;
  padding: 0 0.25rem;
  opacity: 0.7;
}

.save-error-dismiss:hover {
  opacity: 1;
}

/* Editor Status Error */
.editor-status-error {
  color: var(--error-color);
}

/* Error */
.error {
  color: var(--error-color);
}

/* 404 */
.not-found {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  text-align: center;
  gap: 1rem;
}

.not-found h1 {
  font-size: 4rem;
  color: var(--text-muted);
}

/* ON-199: Wiki Links */
.wiki-link {
  color: var(--accent-color);
  text-decoration: none;
  cursor: pointer;
  padding: 0.05em 0.2em;
  border-radius: 3px;
  background-color: color-mix(in srgb, var(--accent-color) 8%, transparent);
  transition: all 0.15s;
}

.wiki-link:hover {
  text-decoration: underline;
  background-color: color-mix(in srgb, var(--accent-color) 15%, transparent);
  color: var(--accent-hover);
}

.wiki-link.broken {
  color: var(--text-muted);
  background-color: color-mix(in srgb, var(--error-color) 8%, transparent);
  border-bottom: 1px dashed var(--text-muted);
}

.wiki-link.broken:hover {
  color: var(--error-color);
  background-color: color-mix(in srgb, var(--error-color) 15%, transparent);
}

/* ON-314: External link styles */
.external-link {
  color: var(--accent-color);
  text-decoration: underline;
  text-decoration-style: solid;
  text-underline-offset: 2px;
  cursor: pointer;
  transition: color 0.15s;
}
.external-link:hover {
  color: var(--accent-hover);
}

/* ON-314: Link edit popup */
.link-popup {
  position: absolute;
  z-index: 350;
  display: flex;
  align-items: center;
  gap: 4px;
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.12);
  padding: 6px 8px;
  min-width: 280px;
}
.link-popup-input {
  flex: 1;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  padding: 4px 8px;
  font-size: 13px;
  background-color: var(--bg-secondary);
  color: var(--text-primary);
  outline: none;
}
.link-popup-input:focus {
  border-color: var(--accent-color);
}
.link-popup-btn {
  padding: 4px 8px;
  border: none;
  border-radius: 4px;
  font-size: 12px;
  cursor: pointer;
  background-color: transparent;
  color: var(--text-secondary);
  text-decoration: none;
  white-space: nowrap;
}
.link-popup-btn:hover {
  background-color: var(--bg-hover);
  color: var(--text-primary);
}
.link-popup-remove:hover {
  color: var(--error-color);
}

/* ON-314: Link tooltip (click on existing link) */
.link-tooltip {
  position: absolute;
  z-index: 350;
  display: flex;
  align-items: center;
  gap: 6px;
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.12);
  padding: 4px 8px;
  font-size: 13px;
}
.link-tooltip-url {
  color: var(--text-muted);
  font-size: 12px;
  max-width: 200px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.link-tooltip-btn {
  padding: 2px 6px;
  border: none;
  border-radius: 4px;
  font-size: 12px;
  cursor: pointer;
  background-color: transparent;
  color: var(--accent-color);
  text-decoration: none;
  white-space: nowrap;
}
.link-tooltip-btn:hover {
  background-color: var(--bg-hover);
  color: var(--accent-hover);
}

/* ON-199: Wiki Autocomplete Dropdown */
.wiki-autocomplete {
  position: absolute;
  z-index: 300;
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  box-shadow: var(--shadow-lg);
  max-height: 240px;
  overflow-y: auto;
  min-width: 220px;
  max-width: 360px;
  animation: dropdown-slide-in 0.2s ease-out;
}

.wiki-autocomplete-item {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  width: 100%;
  padding: 0.5rem 0.75rem;
  border: none;
  border-bottom: 1px solid var(--border-color);
  background: none;
  cursor: pointer;
  text-align: left;
  color: var(--text-primary);
  font-size: 0.85rem;
  transition: background-color 0.1s;
}

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

.wiki-autocomplete-item:hover {
  background-color: var(--bg-secondary);
}

.wiki-autocomplete-item.selected {
  background-color: var(--accent-color);
  color: white;
}

.wiki-autocomplete-item.selected .wiki-autocomplete-item-snippet {
  color: rgba(255, 255, 255, 0.7);
}

.wiki-autocomplete-item-title {
  font-weight: 500;
  font-size: 0.875rem;
  line-height: 1.3;
}

.wiki-autocomplete-item-snippet {
  font-size: 0.75rem;
  color: var(--text-muted);
  line-height: 1.3;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.wiki-autocomplete-empty {
  padding: 0.75rem;
  font-size: 0.8rem;
  color: var(--text-muted);
  text-align: center;
}

/* ON-269: Slash command menu */
.slash-menu {
  position: absolute;
  z-index: 100;
  min-width: 280px;
  max-width: 380px;
  max-height: 320px;
  overflow-y: auto;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
  animation: dropdown-slide-in 0.2s ease-out;
}

.slash-menu-item {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  padding: 0.5rem 0.75rem;
  border: none;
  background: none;
  width: 100%;
  text-align: left;
  cursor: pointer;
  font-family: inherit;
  font-size: 0.85rem;
  color: var(--text-primary);
  border-bottom: 1px solid var(--border-color);
}

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

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

.slash-menu-item.selected {
  background-color: color-mix(in srgb, var(--accent-color) 12%, transparent);
  color: var(--accent-color);
}

.slash-menu-item-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  color: var(--text-muted);
  background: var(--bg-secondary);
  border-radius: 4px;
}

.slash-menu-item.selected .slash-menu-item-icon {
  color: var(--accent-color);
}

.slash-menu-item-text {
  display: flex;
  flex-direction: column;
  gap: 1px;
  min-width: 0;
}

.slash-menu-item-name {
  font-weight: 600;
  font-size: 0.85rem;
}

.slash-menu-item-desc {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.slash-menu-empty {
  padding: 0.75rem;
  font-size: 0.8rem;
  color: var(--text-muted);
  text-align: center;
}

/* ===================================================================
   ON-210/211/212/213: Backlinks panel
   =================================================================== */

.backlinks-panel {
  margin-top: 1.5rem;
  border-top: 1px solid var(--border-color);
  padding-top: 0.5rem;
}

.backlinks-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  width: 100%;
  padding: 0.5rem 0;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-secondary);
  font-size: 0.85rem;
  font-weight: 500;
  text-align: left;
}

.backlinks-header:hover {
  color: var(--text-primary);
}

.backlinks-chevron {
  display: inline-block;
  width: 0;
  height: 0;
  border-top: 5px solid transparent;
  border-bottom: 5px solid transparent;
  border-left: 6px solid currentColor;
  transition: transform 0.15s ease;
}

.backlinks-chevron.expanded {
  transform: rotate(90deg);
}

.backlinks-title {
  user-select: none;
}

.backlinks-body {
  overflow: hidden;
  max-height: 600px;
  transition: max-height 0.2s ease;
}

.backlinks-body.collapsed {
  max-height: 0;
}

.backlinks-empty {
  color: var(--text-muted);
  font-size: 0.85rem;
  font-style: italic;
  padding: 0.5rem 0;
  margin: 0;
}

.backlinks-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.backlink-item {
  border-radius: 6px;
}

.backlink-link {
  display: block;
  padding: 0.5rem 0.75rem;
  border-radius: 6px;
  text-decoration: none;
  color: inherit;
  transition: background 0.1s ease;
}

.backlink-link:hover {
  background: var(--bg-secondary);
}

.backlink-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}

.backlink-title {
  font-weight: 500;
  font-size: 0.9rem;
  color: var(--accent-color);
}

.backlink-date {
  font-size: 0.75rem;
  color: var(--text-muted);
  white-space: nowrap;
}

.backlink-context {
  margin: 0.25rem 0 0 0;
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.4;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

/* ON-211: Backlink count badge in note list */

.note-header-right {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-shrink: 0;
}

.backlink-count-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 1.25rem;
  height: 1.25rem;
  padding: 0 0.35rem;
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--accent-color);
  background: color-mix(in srgb, var(--accent-color) 10%, transparent);
  border-radius: 10px;
}

/* ================================================================
   Graph View (ON-37)
   ================================================================ */

/* Graph page layout */
.graph-page {
  display: flex;
  flex-direction: column;
  height: 100%;
  max-height: 100%;
  min-height: 0;
  overflow: hidden;
  animation: page-fade-in 0.3s ease-out;
}

.graph-page-header {
  padding: 0.5rem 0 0.75rem;
  flex-shrink: 0;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}

.graph-page-header h1 {
  margin: 0;
  font-size: var(--text-2xl);
  font-weight: 700;
  line-height: var(--leading-tight);
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

.graph-page-subtitle {
  margin: 0.25rem 0 0;
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Graph container — column: toolbar on top, canvas row below */
.graph-container {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-height: 0;
  gap: 0;
  position: relative;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  overflow: hidden;
  background: var(--bg-primary);
}

/* Canvas row — GraphView + NodeInfoPanel (absolute overlay) */
.graph-canvas-row {
  display: flex;
  flex: 1;
  min-height: 0;
  position: relative;
}

/* SVG canvas wrapper */
.graph-canvas-container {
  position: relative;
  flex: 1;
  min-width: 0;
  min-height: 0;
  overflow: hidden;
}

.graph-canvas {
  display: block;
  width: 100%;
  height: 100%;
  cursor: grab;
  background: var(--bg-primary);
  user-select: none;
  -webkit-user-select: none;
  touch-action: none;
}

.graph-canvas.dragging {
  cursor: grabbing;
}

/* Smooth transform transitions for auto-fit and zoom buttons.
   Disabled during active interaction (handled by .dragging class). */
.graph-canvas g {
  will-change: transform;
}

/* Graph nodes */
.graph-node {
  cursor: pointer;
}

.graph-node .node-circle {
  transition: filter 0.2s ease, stroke-width 0.15s ease;
}

.graph-node .node-glow {
  transition: stroke-width 0.3s ease, stroke-opacity 0.3s ease;
}

.graph-node:hover .node-circle {
  filter: brightness(1.18) saturate(1.1);
}

.graph-node:hover .node-glow {
  stroke-width: 6;
  stroke-opacity: 0.2;
}

.graph-node.selected .node-circle {
  filter: brightness(1.1) saturate(1.15);
}

.graph-node.selected .node-glow {
  stroke-width: 8;
  stroke-opacity: 0.25;
}

.graph-node.dragging {
  cursor: grabbing;
}

.graph-node.dragging .node-circle {
  filter: brightness(1.25) saturate(1.2);
}

.graph-node.dragging .node-glow {
  stroke-width: 10;
  stroke-opacity: 0.3;
}

.graph-node-label {
  font-size: 10.5px;
  fill: var(--text-secondary);
  pointer-events: none;
  font-family: inherit;
  opacity: 0.85;
  transition: opacity 0.2s ease;
}

.graph-node:hover .graph-node-label {
  opacity: 1;
}

.graph-node.selected .graph-node-label {
  opacity: 1;
  fill: var(--text-primary);
}

[data-theme="dark"] .graph-node-label {
  fill: var(--text-secondary);
}

/* ON-474: Emoji/icon rendered inside the node circle */
.node-icon {
  pointer-events: none;
  user-select: none;
  filter: drop-shadow(0 1px 1px rgba(0, 0, 0, 0.3));
}

/* Graph edges */
.graph-edge {
  transition: stroke-width 0.15s ease, stroke 0.2s ease;
}

/* Edge type variants */
.graph-edge-link {
  stroke: var(--edge-color, #6b7280);
  stroke-width: 1.5;
}

.graph-edge-link.highlighted {
  stroke: var(--accent-color);
  stroke-width: 2.5;
}

.graph-edge-hierarchy {
  stroke: var(--edge-color, #6b7280);
  stroke-width: 1.0;
  stroke-dasharray: 6, 3;
}

.graph-edge-hierarchy.highlighted {
  stroke: var(--accent-color);
  stroke-width: 2.0;
  stroke-dasharray: 6, 3;
}

.graph-edge-manual {
  stroke: var(--manual-edge-color, #8b5cf6);
  stroke-width: 1.5;
}

.graph-edge-manual.highlighted {
  stroke: var(--accent-color);
  stroke-width: 2.5;
}

/* ON-506: Clickable edge styles */
.graph-edge-group.graph-edge-clickable {
  cursor: pointer;
}
.graph-edge-hit-area {
  cursor: pointer;
}
.graph-edge.selected {
  stroke: var(--accent-color, #3b82f6) !important;
  stroke-width: 3.0 !important;
  filter: drop-shadow(0 0 4px var(--accent-color, #3b82f6));
}

/* ON-506: Edge context menu (right-click) */
.edge-ctx-menu {
  position: fixed;
  z-index: 1000;
  min-width: 200px;
  max-width: 280px;
  background: var(--bg-secondary, #1e1e2e);
  border: 1px solid var(--border-color, #333);
  border-radius: 6px;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.45), 0 0 0 1px rgba(255,255,255,0.04);
  padding: 4px 0;
  color: var(--text-primary, #e4e4e7);
  font-size: 13px;
  animation: ecm-in 0.12s ease-out;
}
@keyframes ecm-in {
  from { opacity: 0; transform: scale(0.95); }
  to   { opacity: 1; transform: scale(1); }
}

/* Header: badge + close */
.ecm-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 4px 10px 4px 12px;
}
.ecm-badge {
  display: inline-block;
  padding: 1px 7px;
  border-radius: 3px;
  font-size: 10px;
  font-weight: 600;
  background: var(--accent-color, #3b82f6);
  color: #fff;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.ecm-close {
  display: flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  color: var(--text-secondary, #888);
  cursor: pointer;
  padding: 3px;
  border-radius: 3px;
  line-height: 1;
}
.ecm-close:hover {
  background: var(--bg-tertiary, #2a2a3e);
  color: var(--text-primary);
}

/* Generic menu item */
.ecm-item {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  padding: 6px 12px;
  background: none;
  border: none;
  color: var(--text-primary, #e4e4e7);
  font-size: 13px;
  cursor: pointer;
  text-align: left;
  transition: background 0.1s;
}
.ecm-item:hover {
  background: var(--bg-tertiary, #2a2a3e);
}
.ecm-icon {
  flex-shrink: 0;
  opacity: 0.6;
}

/* Separator */
.ecm-sep {
  height: 1px;
  background: var(--border-color, #333);
  margin: 3px 0;
}

/* Weight row (inline slider) */
.ecm-weight-row {
  cursor: default;
  gap: 6px;
}
.ecm-weight-row:hover {
  background: none;
}
.ecm-weight-label {
  font-size: 12px;
  color: var(--text-secondary, #888);
  white-space: nowrap;
  flex-shrink: 0;
}
.ecm-slider {
  flex: 1;
  height: 4px;
  min-width: 70px;
  -webkit-appearance: none;
  appearance: none;
  background: var(--bg-tertiary, #2a2a3e);
  border-radius: 2px;
  outline: none;
}
.ecm-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--accent-color, #3b82f6);
  cursor: pointer;
}
.ecm-slider::-moz-range-thumb {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--accent-color, #3b82f6);
  cursor: pointer;
  border: none;
}
.ecm-weight-val {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-primary, #e4e4e7);
  width: 40px;
  text-align: center;
  background: var(--bg-tertiary, #27272a);
  border: 1px solid var(--border-color, #3f3f46);
  border-radius: 4px;
  padding: 1px 4px;
  -moz-appearance: textfield;
}
.ecm-weight-val::-webkit-inner-spin-button,
.ecm-weight-val::-webkit-outer-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

/* Navigation items */
.ecm-nav {
  color: var(--text-primary, #e4e4e7);
}

/* Danger item (delete) */
.ecm-danger {
  color: var(--error-color, #ef4444);
}
.ecm-danger .ecm-icon {
  opacity: 0.8;
}
.ecm-danger:hover {
  background: rgba(239, 68, 68, 0.12);
}

/* Zoom controls */
.graph-zoom-controls {
  position: absolute;
  bottom: 12px;
  right: 12px;
  display: flex;
  flex-direction: column;
  gap: 3px;
  opacity: 0.7;
  transition: opacity 0.2s ease;
}

.graph-zoom-controls:hover {
  opacity: 1;
}

.graph-zoom-btn {
  width: 30px;
  height: 30px;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  background: var(--bg-secondary);
  color: var(--text-primary);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s ease, transform 0.1s ease;
  backdrop-filter: blur(8px);
}

.graph-zoom-btn:hover {
  background: var(--bg-tertiary);
  transform: scale(1.08);
}

.graph-zoom-btn:active {
  transform: scale(0.95);
}

.graph-zoom-reset {
  font-size: 0.7rem;
}

/* ON-505: Graph filter toolbar (gft-*) — always-visible horizontal bar */

/* ── Toolbar container ───────────────────────────────────── */
.gft-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px;
  padding: 5px 10px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  flex-shrink: 0;
  font-size: 0.78rem;
  color: var(--text-secondary);
}

.gft-group {
  display: flex;
  align-items: center;
  gap: 4px;
}

.gft-sep {
  width: 1px;
  height: 18px;
  background: var(--border-color);
  flex-shrink: 0;
  margin: 0 2px;
}

.gft-spacer {
  flex: 1;
  min-width: 8px;
}

/* ── Dropdown buttons (uniform for all categories) ────────── */
.gft-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 10px;
  font-size: 0.75rem;
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.15s;
  white-space: nowrap;
  font-family: inherit;
  line-height: 1.4;
}

.gft-btn:hover {
  border-color: var(--accent-color);
  color: var(--text-primary);
}

.gft-btn.active {
  background: color-mix(in srgb, var(--accent-color) 15%, var(--bg-tertiary));
  color: var(--accent-color);
  border-color: var(--accent-color);
}

.gft-btn-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 16px;
  height: 16px;
  padding: 0 4px;
  font-size: 0.65rem;
  font-weight: 700;
  background: var(--accent-color);
  color: #fff;
  border-radius: 8px;
  line-height: 1;
}

.gft-btn-detail {
  font-size: 0.68rem;
  opacity: 0.8;
  font-weight: 500;
}

/* ── Popover (shared) ─────────────────────────────────────── */
.gft-popover-anchor {
  position: relative;
  display: inline-flex;
}

.gft-popover {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  z-index: 20;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 8px;
  box-shadow: var(--shadow-md);
  min-width: 180px;
  animation: dropdown-slide-in 0.12s ease-out;
}

.gft-pop-section-label {
  font-size: 0.68rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 0 0 4px;
}

.gft-pop-divider {
  height: 1px;
  background: var(--border-color);
  margin: 6px 0;
}

.gft-pop-input {
  width: 100%;
  padding: 4px 8px;
  font-size: 0.78rem;
  background: var(--bg-secondary);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  outline: none;
  transition: border-color 0.15s;
  font-family: inherit;
  box-sizing: border-box;
}

.gft-pop-input:focus {
  border-color: var(--accent-color);
}

.gft-pop-input::placeholder {
  color: var(--text-muted);
}

.gft-pop-row {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 3px 0;
  font-size: 0.78rem;
  cursor: pointer;
  user-select: none;
}

.gft-pop-row input[type="checkbox"] {
  accent-color: var(--accent-color);
  width: 14px;
  height: 14px;
  margin: 0;
}

.gft-pop-slider {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 4px 0 0;
  font-size: 0.75rem;
}

.gft-pop-slider input[type="range"] {
  width: 100%;
  accent-color: var(--accent-color);
  cursor: pointer;
  height: 4px;
}

/* ── Edge icon inside Relations popover rows ──────────────── */
.gft-edge-icon {
  flex-shrink: 0;
}

/* ── Focus chip (shown in toolbar when a node is focused) ─── */
.gft-focus-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 8px 3px 10px;
  background: color-mix(in srgb, var(--accent-color) 15%, var(--bg-tertiary));
  border: 1px solid var(--accent-color);
  border-radius: 4px;
  font-size: 0.75rem;
  white-space: nowrap;
  color: var(--accent-color);
}

.gft-focus-chip-title {
  max-width: 140px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-weight: 500;
}

.gft-focus-chip-depth {
  font-size: 0.68rem;
  opacity: 0.75;
}

.gft-focus-chip-x {
  background: none;
  border: none;
  color: var(--accent-color);
  cursor: pointer;
  padding: 0;
  font-size: 0.9rem;
  line-height: 1;
  display: flex;
  align-items: center;
  opacity: 0.6;
  transition: opacity 0.15s;
}

.gft-focus-chip-x:hover {
  opacity: 1;
}

/* ── Focus popover ────────────────────────────────────────── */
.gft-popover-focus {
  min-width: 220px;
}

.gft-focus-list {
  list-style: none;
  margin: 4px 0 0;
  padding: 0;
  max-height: 180px;
  overflow-y: auto;
}

.gft-focus-list-item {
  display: block;
  width: 100%;
  padding: 5px 8px;
  font-size: 0.78rem;
  background: none;
  border: none;
  color: var(--text-primary);
  cursor: pointer;
  text-align: left;
  border-radius: 3px;
  transition: background 0.1s;
}

.gft-focus-list-item:hover {
  background: var(--bg-tertiary);
}

/* ── Tags popover ─────────────────────────────────────────── */
.gft-popover-tags {
  min-width: 220px;
}

.gft-tag-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}

.gft-tag-pill {
  display: flex;
  align-items: center;
  gap: 2px;
  padding: 2px 6px;
  font-size: 0.72rem;
  background: var(--accent-color);
  color: #fff;
  border-radius: 10px;
}

.gft-tag-rm {
  background: none;
  border: none;
  color: rgba(255, 255, 255, 0.7);
  cursor: pointer;
  padding: 0 1px;
  font-size: 0.8rem;
  line-height: 1;
  display: flex;
  align-items: center;
}

.gft-tag-rm:hover {
  color: #fff;
}

.gft-tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}

.gft-tag-opt {
  padding: 2px 8px;
  font-size: 0.72rem;
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  cursor: pointer;
  transition: all 0.15s;
  font-family: inherit;
}

.gft-tag-opt:hover {
  border-color: var(--accent-color);
  color: var(--accent-color);
}

.gft-tag-opt.active {
  background: var(--accent-color);
  color: #fff;
  border-color: var(--accent-color);
}

.gft-clear-link {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 0.72rem;
  cursor: pointer;
  padding: 4px 0 0;
  text-align: left;
  font-family: inherit;
}

.gft-clear-link:hover {
  color: var(--accent-color);
}

/* ── Time popover ─────────────────────────────────────────── */
.gft-popover-time {
  min-width: 200px;
}

.gft-time-presets {
  display: flex;
  gap: 4px;
  padding: 2px 0 4px;
}

.gft-time-preset {
  padding: 3px 10px;
  font-size: 0.72rem;
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.15s;
  font-family: inherit;
  white-space: nowrap;
}

.gft-time-preset:hover {
  border-color: var(--accent-color);
  color: var(--accent-color);
}

.gft-time-preset.active {
  background: var(--accent-color);
  color: #fff;
  border-color: var(--accent-color);
}

.gft-time-custom {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 2px 0;
}

.gft-time-field {
  display: flex;
  align-items: center;
  gap: 8px;
}

.gft-time-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  min-width: 32px;
  font-weight: 500;
}

/* ── Search (inline, right side of toolbar) ───────────────── */
.gft-search {
  position: relative;
  display: flex;
  align-items: center;
  gap: 4px;
}

.gft-search-icon {
  flex-shrink: 0;
  color: var(--text-muted);
}

.gft-search-input {
  width: 120px;
}

/* ON-504: Title search highlight glow on graph nodes */
.graph-node.search-highlighted .node-circle {
  filter: drop-shadow(0 0 6px var(--accent-color)) drop-shadow(0 0 12px var(--accent-color));
}
.graph-node.search-highlighted .node-glow {
  stroke-width: 3px !important;
  stroke-opacity: 0.6 !important;
}

/* Node info panel — absolute overlay so it doesn't resize the SVG canvas */
.node-info-panel {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: 280px;
  z-index: 10;
  border-left: 1px solid var(--border-color);
  background: var(--bg-secondary);
  padding: 1rem;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

/* ON-475: Icon + title row */
.node-info-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.node-info-icon {
  font-size: 1.5rem;
  line-height: 1;
  flex-shrink: 0;
}

.node-info-title {
  margin: 0;
  font-size: 1.1rem;
  color: var(--text-primary);
  word-wrap: break-word;
}

/* ON-475: Section labels (Parent, Sub-pages) */
.node-info-section {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.node-info-section-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  font-weight: 600;
}

/* ON-475: Clickable links to parent/children */
.node-info-link {
  background: none;
  border: none;
  padding: 0.2rem 0.4rem;
  margin: 0;
  text-align: left;
  color: var(--accent-color);
  cursor: pointer;
  font-size: 0.85rem;
  border-radius: 4px;
  transition: background 0.15s;
}

.node-info-link:hover {
  background: color-mix(in srgb, var(--accent-color) 10%, transparent);
}

/* ON-475: Children list */
.node-info-children {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
  max-height: 150px;
  overflow-y: auto;
}

.node-info-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.node-info-tag {
  padding: 0.15rem 0.5rem;
  font-size: 0.75rem;
  background: color-mix(in srgb, var(--accent-color) 15%, transparent);
  color: var(--accent-color);
  border-radius: 10px;
  font-weight: 500;
}

.node-info-stats {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.node-info-stat {
  display: flex;
  align-items: baseline;
  gap: 0.25rem;
  font-size: 0.8rem;
}

.stat-value {
  font-weight: 700;
  color: var(--text-primary);
}

.stat-label {
  color: var(--text-muted);
}

.node-info-preview {
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.45;
  margin: 0;
  max-height: 150px;
  overflow-y: auto;
}

.node-info-loading {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.node-info-open {
  margin-top: auto;
  width: 100%;
  padding: 0.5rem;
  border: none;
  border-radius: 6px;
  background: var(--accent-color);
  color: #fff;
  font-weight: 600;
  cursor: pointer;
  font-size: 0.85rem;
  transition: background 0.15s;
}

.node-info-open:hover {
  background: var(--accent-hover);
}

.node-info-empty {
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* ON-503: Connection UI */
.node-info-connection-row {
  display: flex;
  align-items: center;
  gap: 4px;
}

.node-info-connection-row .node-info-link {
  flex: 1;
  min-width: 0;
}

.node-info-remove-btn {
  flex-shrink: 0;
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 2px;
  border-radius: 4px;
  display: flex;
  align-items: center;
  transition: color 0.15s, background 0.15s;
}

.node-info-remove-btn:hover {
  color: var(--danger-color);
  background: var(--bg-tertiary);
}

.node-info-connect-btn {
  width: 100%;
  margin-top: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  padding: 0.35rem 0.5rem;
  font-size: 0.8rem;
  color: var(--text-secondary);
  background: var(--bg-tertiary);
  border: 1px dashed var(--border-color);
  border-radius: 6px;
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s, background 0.15s;
}

.node-info-connect-btn:hover {
  color: var(--accent-color);
  border-color: var(--accent-color);
  background: var(--bg-secondary);
}

.node-info-search {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-top: 4px;
}

.node-info-search-input {
  width: 100%;
  padding: 0.35rem 0.5rem;
  font-size: 0.8rem;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  color: var(--text-primary);
  outline: none;
}

.node-info-search-input:focus {
  border-color: var(--accent-color);
}

.node-info-search-results {
  list-style: none;
  margin: 0;
  padding: 0;
  max-height: 180px;
  overflow-y: auto;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 6px;
}

.node-info-search-results li {
  padding: 0;
}

.node-info-search-results .node-info-link {
  width: 100%;
  border-radius: 0;
  padding: 0.35rem 0.5rem;
}

.node-info-search-results li:first-child .node-info-link {
  border-radius: 6px 6px 0 0;
}

.node-info-search-results li:last-child .node-info-link {
  border-radius: 0 0 6px 6px;
}

.node-info-search-cancel {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 0.75rem;
  cursor: pointer;
  padding: 2px 0;
  text-align: center;
}

.node-info-search-cancel:hover {
  color: var(--text-secondary);
}

/* Edge info panel — absolute overlay, same pattern as node-info-panel */
.edge-info-panel {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: 280px;
  z-index: 10;
  border-left: 1px solid var(--border-color);
  background: var(--bg-secondary);
  padding: 1rem;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.eip-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.eip-badge {
  display: inline-block;
  padding: 0.2rem 0.6rem;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: 10px;
  background: color-mix(in srgb, var(--accent-color) 15%, transparent);
  color: var(--accent-color);
}

.eip-section {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.eip-section-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  font-weight: 600;
}

.eip-node-link {
  background: none;
  border: none;
  padding: 0.3rem 0.5rem;
  margin: 0;
  text-align: left;
  color: var(--accent-color);
  cursor: pointer;
  font-size: 0.85rem;
  border-radius: 6px;
  transition: background 0.15s;
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.eip-node-link:hover {
  background: color-mix(in srgb, var(--accent-color) 10%, transparent);
}

.eip-node-icon {
  font-size: 1.1rem;
  line-height: 1;
  flex-shrink: 0;
}

.eip-weight-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.eip-slider {
  flex: 1;
  height: 4px;
  appearance: none;
  -webkit-appearance: none;
  background: var(--bg-tertiary);
  border-radius: 2px;
  outline: none;
  cursor: pointer;
}

.eip-slider::-webkit-slider-thumb {
  appearance: none;
  -webkit-appearance: none;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--accent-color);
  cursor: pointer;
}

.eip-slider::-moz-range-thumb {
  width: 14px;
  height: 14px;
  border: none;
  border-radius: 50%;
  background: var(--accent-color);
  cursor: pointer;
}

.eip-weight-val {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  width: 48px;
  text-align: center;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  padding: 2px 4px;
  -moz-appearance: textfield;
}
.eip-weight-val::-webkit-inner-spin-button,
.eip-weight-val::-webkit-outer-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

.eip-date {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.eip-actions {
  margin-top: auto;
}

.eip-delete-btn {
  width: 100%;
  padding: 0.45rem 0.5rem;
  border: none;
  border-radius: 6px;
  background: color-mix(in srgb, var(--danger-color) 12%, transparent);
  color: var(--danger-color);
  font-weight: 600;
  cursor: pointer;
  font-size: 0.85rem;
  transition: background 0.15s;
}

.eip-delete-btn:hover {
  background: color-mix(in srgb, var(--danger-color) 22%, transparent);
}

/* Graph loading/empty/error states */
.graph-loading,
.graph-empty,
.graph-error {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 400px;
  color: var(--text-muted);
  font-size: 0.95rem;
  text-align: center;
  gap: 0.25rem;
}

.graph-empty code {
  padding: 0.15rem 0.4rem;
  background: var(--bg-tertiary);
  border-radius: 4px;
  font-size: 0.85rem;
}

.graph-error {
  color: #e53935;
}

/* Responsive */
@media (max-width: 768px) {
  .layout {
    flex-direction: column;
  }

  .sidebar {
    width: 100%;
    border-right: none;
    border-bottom: 1px solid var(--border-color);
  }

  .main-content {
    padding: var(--space-4);
  }

  .page-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .note-meta-bar {
    flex-direction: column;
    gap: var(--space-3);
  }

  .note-timestamps {
    flex-direction: column;
    gap: var(--space-1);
  }

  input.note-title {
    font-size: var(--text-3xl);
  }
}

/* ================================================================
   ON-243: Loading Skeletons
   ================================================================ */

@keyframes skeleton-shimmer {
  0% {
    background-position: -200% 0;
  }
  100% {
    background-position: 200% 0;
  }
}

@keyframes skeleton-appear {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.skeleton-line {
  height: 14px;
  background: linear-gradient(
    90deg,
    var(--bg-tertiary) 25%,
    color-mix(in srgb, var(--bg-tertiary) 60%, var(--bg-primary)) 50%,
    var(--bg-tertiary) 75%
  );
  background-size: 200% 100%;
  border-radius: 4px;
  animation: skeleton-shimmer 1.8s ease-in-out infinite;
}

.skeleton-line.skeleton-sm {
  height: 10px;
}

.skeleton-line.skeleton-title {
  height: 28px;
  margin-bottom: 1rem;
}

.skeleton-line.skeleton-tag {
  height: 20px;
  border-radius: 10px;
  display: inline-block;
}

.skeleton-card {
  padding: 1rem;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  margin-bottom: 0.75rem;
  opacity: 0;
  animation: skeleton-appear 0.2s ease-out 0.3s forwards;
}

.skeleton-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.75rem;
}

.skeleton-card .skeleton-line + .skeleton-line {
  margin-top: 0.5rem;
}

.skeleton-tags {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.75rem;
}

.note-list-skeleton {
  padding: 0;
  opacity: 0;
  animation: skeleton-appear 0.2s ease-out 0.3s forwards;
}

.skeleton-meta {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.skeleton-body .skeleton-line + .skeleton-line {
  margin-top: 0.75rem;
}

.note-skeleton {
  padding: 1rem 0;
  opacity: 0;
  animation: skeleton-appear 0.2s ease-out 0.3s forwards;
}

.sidebar-skeleton {
  padding: 1rem;
  opacity: 0;
  animation: skeleton-appear 0.2s ease-out 0.3s forwards;
}

.sidebar-skeleton .skeleton-line + .skeleton-line {
  margin-top: 0.75rem;
}



/* Toast container: fixed bottom-right corner, always visible */
.toast-container {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  max-width: 400px;
  pointer-events: none;
}

.toast {
  pointer-events: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1rem;
  border-radius: 8px;
  color: #fff;
  font-size: 0.875rem;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  animation: toast-slide-up-in 0.3s ease-out;
}

@keyframes toast-slide-up-in {
  from {
    opacity: 0;
    transform: translateY(1rem);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.toast-success {
  background: #16a34a;
}

.toast-error {
  background: #dc2626;
}

.toast-info {
  background: #2563eb;
}

.toast-message {
  flex: 1;
  margin-right: 0.75rem;
}

.toast-dismiss {
  background: none;
  border: none;
  color: rgba(255, 255, 255, 0.8);
  font-size: 1rem;
  cursor: pointer;
  padding: 0 0.25rem;
  line-height: 1;
}

.toast-dismiss:hover {
  color: #fff;
}

/* ON-392: Toast exit animation */
@keyframes toast-slide-up {
  from {
    opacity: 1;
    transform: translateY(0);
  }
  to {
    opacity: 0;
    transform: translateY(1rem);
  }
}

.toast-closing {
  animation: toast-slide-up 0.3s ease-in forwards;
}

/* ================================================================
   ON-245: Empty States
   ================================================================ */

.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 3rem 1.5rem;
  text-align: center;
}

.empty-state-sm {
  padding: 1.5rem 1rem;
}

.empty-state-icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--bg-tertiary);
  color: var(--text-muted);
  font-size: 1.5rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
}

.empty-state-title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.empty-state-desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
  max-width: 400px;
  line-height: 1.5;
}

.empty-state-desc code {
  background: var(--bg-tertiary);
  padding: 0.125rem 0.375rem;
  border-radius: 3px;
  font-size: 0.8125rem;
}

/* ================================================================
   ON-240/241/242: Data (Export/Import) sidebar section
   ================================================================ */

.sidebar-data-actions {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: 0 0.75rem;
}

.btn-block {
  display: block;
  width: 100%;
  text-align: center;
  text-decoration: none;
}

/* ON-392: .btn-secondary as proper variant of .btn — only override colors.
   Inherits display, font-size, font-weight, padding, border-radius from .btn/.btn-sm */
.btn-secondary {
  background-color: var(--bg-tertiary);
  border-color: var(--border-color);
  color: var(--text-primary);
}

.btn-secondary:hover {
  background-color: color-mix(in srgb, var(--accent-color) 10%, var(--bg-tertiary));
  border-color: color-mix(in srgb, var(--accent-color) 25%, var(--border-color));
  color: var(--text-primary);
}

.import-wrapper {
  position: relative;
}

.import-label {
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.import-input {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: pointer;
}

.import-msg {
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin-top: 0.25rem;
  padding: 0 0.25rem;
}

/* ================================================================
   ON-246: Responsive / Mobile Layout
   ================================================================ */

.mobile-header {
  display: none;
}

.sidebar-overlay {
  display: none;
}

@media (max-width: 768px) {
  .mobile-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
  }

  .mobile-logo {
    font-weight: 700;
    font-size: 1.125rem;
    color: var(--text-primary);
  }

  .hamburger-btn {
    background: none;
    border: none;
    padding: 0.5rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .hamburger-icon {
    display: block;
    width: 20px;
    height: 2px;
    background: var(--text-primary);
    position: relative;
  }

  .hamburger-icon::before,
  .hamburger-icon::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 2px;
    background: var(--text-primary);
    left: 0;
  }

  .hamburger-icon::before {
    top: -6px;
  }

  .hamburger-icon::after {
    top: 6px;
  }

  .layout {
    flex-direction: column;
  }

  /* ON-334: In mobile, sidebar-wrapper becomes the fixed drawer */
  .sidebar-wrapper {
    position: fixed;
    left: -280px;
    top: 0;
    bottom: 0;
    width: 280px !important;
    z-index: 200;
    transition: left 0.3s ease;
    overflow: visible;
    border-right: 1px solid var(--border-color);
  }

  .sidebar-open .sidebar-wrapper {
    left: 0;
  }

  .sidebar {
    width: 100%;
    overflow-y: auto;
  }

  /* Hide resize handle and collapse button on mobile */
  .sidebar-resize-handle {
    display: none;
  }

  .sidebar-collapse-btn {
    display: none;
  }

  .sidebar-overlay {
    display: block;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    z-index: 150;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
  }

  .sidebar-overlay.visible {
    opacity: 1;
    pointer-events: auto;
  }

  .main-content {
    width: 100%;
    padding: var(--space-4);
  }

  .note-meta-bar {
    flex-wrap: wrap;
  }

  .toast-container {
    left: 1rem;
    right: 1rem;
    bottom: 1rem;
    max-width: none;
  }

  /* Graph View — responsive (Bug 9) */
  .graph-page {
    height: 100%;
    max-height: 100%;
  }

  .graph-container {
    flex-direction: column;
  }

  .node-info-panel,
  .edge-info-panel {
    top: auto;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    max-height: 40vh;
    border-left: none;
    border-top: 1px solid var(--border-color);
  }

  .auth-card {
    margin: 1rem;
    padding: 1.5rem;
  }
}

/* ================================================================
   Auth Pages (ON-233, ON-234)
   ================================================================ */

.auth-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background: var(--bg-secondary);
  padding: 1rem;
}

.auth-card {
  width: 100%;
  max-width: 400px;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: var(--space-10);
  box-shadow: var(--shadow-lg);
}

.auth-title {
  font-size: var(--text-2xl);
  font-weight: 700;
  line-height: var(--leading-tight);
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.auth-subtitle {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

.auth-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.auth-field {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.auth-field label {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.auth-field input {
  padding: 0.6rem 0.75rem;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  background: var(--bg-primary);
  color: var(--text-primary);
  font-size: 0.9rem;
  font-family: inherit;
  transition: border-color 0.15s;
}

.auth-field input:focus {
  outline: none;
  border-color: var(--accent-color);
}

.auth-submit {
  width: 100%;
  padding: 0.65rem;
  margin-top: 0.5rem;
  font-size: 0.9rem;
}

.auth-error {
  padding: 0.6rem 0.75rem;
  background: color-mix(in srgb, var(--error-color) 10%, transparent);
  border: 1px solid color-mix(in srgb, var(--error-color) 25%, transparent);
  border-radius: 6px;
  color: var(--error-color);
  font-size: 0.85rem;
  margin-bottom: 0.5rem;
}

.auth-footer {
  margin-top: 1.5rem;
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.auth-footer a {
  color: var(--accent-color);
  font-weight: 500;
}

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

/* ================================================================
   Sidebar User Info (ON-237, ON-238)
   ================================================================ */

/* ON-390: User menu with dropdown */
.sidebar-user {
  margin-top: auto;
  position: relative;
  border-top: 1px solid var(--border-color);
}

.user-menu-trigger {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  width: 100%;
  padding: 0.65rem 1rem;
  border: none;
  background: none;
  cursor: pointer;
  text-align: left;
  transition: background-color 0.1s;
}

.user-menu-trigger:hover {
  background: var(--bg-secondary);
}

.user-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--accent-color);
  color: #fff;
  font-size: 0.8rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.user-details {
  display: flex;
  flex-direction: column;
  min-width: 0;
  flex: 1;
}

.user-name {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-primary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.user-email {
  font-size: 0.7rem;
  color: var(--text-muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.user-menu-chevron {
  flex-shrink: 0;
  color: var(--text-muted);
  transform: rotate(180deg);
  transition: transform 0.15s;
}

.user-menu-backdrop {
  position: fixed;
  inset: 0;
  z-index: 99;
}

.user-menu-dropdown {
  position: absolute;
  bottom: calc(100% + 4px);
  left: 8px;
  right: 8px;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  box-shadow: var(--shadow-lg);
  padding: 4px;
  z-index: 100;
  animation: dropdown-slide-in 0.12s ease-out;
}

.user-menu-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  width: 100%;
  padding: 0.45rem 0.6rem;
  border: none;
  background: none;
  border-radius: 5px;
  cursor: pointer;
  font-size: 0.825rem;
  font-family: inherit;
  color: var(--text-primary);
  text-decoration: none;
  transition: background-color 0.1s;
}

.user-menu-item:hover {
  background: var(--bg-secondary);
}

.user-menu-item .nav-icon {
  width: 15px;
  height: 15px;
  color: var(--text-secondary);
}

.user-menu-logout:hover {
  color: var(--error-color);
}

.user-menu-logout:hover svg {
  color: var(--error-color);
}

.user-menu-item svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  color: var(--text-primary);
}

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

/* ================================================================
   ON-271: Checklist / Todo Blocks
   ================================================================ */

.checklist {
  list-style: none;
  padding: 0;
  margin: 0.5em 0;
}

.checklist-item {
  display: flex;
  align-items: flex-start;
  padding: 0.15em 0;
}

.checklist-content {
  display: flex;
  align-items: flex-start;
  gap: 0.5em;
  flex: 1;
}

/* ON-392: Wrapper for checklist text — ensures text is a proper flex child
   so the caret doesn't overlap the checkbox in contenteditable. */
.checklist-text {
  flex: 1;
  min-width: 0;
}

.checklist-checkbox {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  min-width: 18px;
  border: 2px solid var(--border-color);
  border-radius: 4px;
  cursor: pointer;
  margin-top: 0.25em;
  transition: all 0.15s;
  background: var(--bg-primary);
  user-select: none;
  flex-shrink: 0;
}

.checklist-checkbox:hover {
  border-color: var(--accent-color);
  background: color-mix(in srgb, var(--accent-color) 8%, transparent);
}

.checklist-item[data-checked="true"] .checklist-checkbox {
  background: var(--accent-color);
  border-color: var(--accent-color);
}

.checklist-item[data-checked="true"] .checklist-checkbox::after {
  content: '';
  display: block;
  width: 5px;
  height: 9px;
  border: solid #fff;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
  margin-bottom: 1px;
}

.checklist-item[data-checked="true"] > .checklist-content {
  text-decoration: line-through;
  opacity: 0.55;
  color: var(--text-muted);
}

/* ===================================================================
   ON-296: Block Context Menu
   =================================================================== */

.block-context-menu {
  position: absolute;
  z-index: 200;
  min-width: 200px;
  max-height: 400px;
  overflow-y: auto;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
  padding: 4px 0;
  font-family: inherit;
}

.block-context-menu-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.75rem;
  border: none;
  background: none;
  width: 100%;
  text-align: left;
  cursor: pointer;
  font-family: inherit;
  font-size: 0.8rem;
  color: var(--text-primary);
  white-space: nowrap;
}

.block-context-menu-item:hover {
  background-color: color-mix(in srgb, var(--accent-color) 12%, transparent);
  color: var(--accent-color);
}

.block-context-menu-item .toolbar-icon {
  flex-shrink: 0;
  color: var(--text-muted);
}

.block-context-menu-item:hover .toolbar-icon {
  color: var(--accent-color);
}

.block-context-menu-item.danger {
  color: var(--error-color, #e53e3e);
}

.block-context-menu-item.danger:hover {
  background-color: color-mix(in srgb, var(--error-color, #e53e3e) 10%, transparent);
  color: var(--error-color, #e53e3e);
}

.block-context-menu-item.danger .toolbar-icon {
  color: var(--error-color, #e53e3e);
}

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

.block-context-menu-submenu-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.75rem;
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  cursor: default;
}

.block-context-menu-submenu-header .toolbar-icon {
  color: var(--text-muted);
}

/* ===================================================================
   ON-294: Toggle / Collapsible blocks
   =================================================================== */

.toggle-block {
  margin: var(--space-3) 0;
  border-radius: 6px;
  border: 1px solid var(--border-color);
  background: var(--bg-primary);
  overflow: hidden;
}

.toggle-summary {
  display: flex;
  align-items: flex-start;
  gap: 0.35rem;
  padding: 0.6rem 0.75rem;
  min-height: 2rem;
  cursor: text;
}

.toggle-arrow {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  cursor: pointer;
  border-radius: 4px;
  color: var(--text-muted);
  transition: transform 0.2s ease, color 0.15s, background-color 0.15s;
  margin-top: 1px;
}

.toggle-arrow:hover {
  color: var(--accent-color);
  background-color: color-mix(in srgb, var(--accent-color) 10%, transparent);
}

.toggle-open .toggle-arrow {
  transform: rotate(90deg);
}

.toggle-summary-content {
  flex: 1;
  outline: none;
  min-height: 1.2em;
  font-weight: 500;
}

.toggle-summary-content:empty::before {
  content: "Toggle heading...";
  color: var(--text-muted);
  pointer-events: none;
}

.toggle-body {
  display: none;
  padding: 0 0.75rem 0.6rem 2.3rem;
  border-top: 1px solid var(--border-color);
}

.toggle-open .toggle-body {
  display: block;
  animation: toggle-expand 0.2s ease;
}

@keyframes toggle-expand {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ===================================================================
   ON-295: Drag & Drop for blocks
   =================================================================== */

.editor-content {
  position: relative;
}

.editor-content > *:not(.floating-toolbar):not(.slash-menu):not(.block-context-menu):not(.lang-picker) {
  position: relative;
}

/* Drag handle — appears on hover over any block */
.drag-handle {
  position: absolute;
  left: -28px;
  top: 50%;
  transform: translateY(-50%);
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: grab;
  border-radius: 4px;
  color: var(--text-muted);
  opacity: 0;
  transition: opacity 0.15s, color 0.15s, background-color 0.15s;
  pointer-events: none;
  z-index: 5;
}

.editor-content > *:hover > .drag-handle,
.drag-handle:hover {
  opacity: 1;
  pointer-events: auto;
}

.drag-handle:hover {
  color: var(--text-primary);
  background-color: var(--bg-tertiary);
}

.drag-handle:active {
  cursor: grabbing;
  color: var(--accent-color);
}

/* Drag state */
.block-dragging {
  opacity: 0.4;
  background: color-mix(in srgb, var(--accent-color) 6%, transparent);
  border-radius: 4px;
}

/* Drop indicator line */
.drop-indicator {
  position: absolute;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--accent-color);
  border-radius: 1px;
  pointer-events: none;
  z-index: 10;
  box-shadow: 0 0 4px color-mix(in srgb, var(--accent-color) 50%, transparent);
}

.drop-indicator::before,
.drop-indicator::after {
  content: '';
  position: absolute;
  top: -3px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-color);
}

.drop-indicator::before {
  left: -4px;
}

.drop-indicator::after {
  right: -4px;
}

/* ===================================================================
   ON-312: Table blocks
   =================================================================== */

.table-wrapper {
  position: relative;
  margin: 0.75rem 0;
  overflow-x: auto;
}

.table-block {
  width: 100%;
  border-collapse: collapse;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  font-size: 0.9rem;
}

.table-block th,
.table-block td {
  border: 1px solid var(--border-color);
  padding: 6px 10px;
  text-align: left;
  vertical-align: top;
  min-width: 60px;
  position: relative;
  outline: none;
}

.table-block th {
  background: var(--bg-secondary);
  font-weight: 600;
  color: var(--text-secondary);
}

.table-block td {
  background: var(--bg-primary, #fff);
}

.table-block td:focus-within,
.table-block th:focus-within {
  box-shadow: inset 0 0 0 2px var(--accent-color, #2563eb);
  border-radius: 1px;
}

/* Cell content containers (skip delete buttons & resize handles during parsing) */
.th-content,
.td-content {
  display: inline;
}

/* Column resize handle */
.col-resize-handle {
  position: absolute;
  top: 0;
  right: -2px;
  width: 4px;
  height: 100%;
  cursor: col-resize;
  z-index: 2;
  background: transparent;
  transition: background 0.15s ease;
}

.col-resize-handle:hover,
.col-resize-handle.resizing {
  background: var(--accent-color, #2563eb);
}

/* Table toolbar (add row/col buttons) */
.table-toolbar {
  display: flex;
  gap: 4px;
  margin-top: 4px;
  opacity: 0;
  transition: opacity 0.15s ease;
}

.table-wrapper:hover .table-toolbar,
.table-wrapper:focus-within .table-toolbar {
  opacity: 1;
}

.table-toolbar button {
  font-size: 0.75rem;
  padding: 2px 8px;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  background: var(--bg-secondary);
  color: var(--text-secondary);
  cursor: pointer;
  transition: background 0.15s ease;
}

.table-toolbar button:hover {
  background: var(--accent-color, #2563eb);
  color: white;
  border-color: var(--accent-color, #2563eb);
}

/* Row hover highlight */
.table-block tbody tr:hover {
  background: var(--bg-hover, rgba(0, 0, 0, 0.02));
}

/* Column/row delete buttons (shown on hover) */
.table-block th .table-del-col,
.table-block td .table-del-row {
  position: absolute;
  top: 2px;
  right: 6px;
  opacity: 0;
  transition: opacity 0.15s ease;
  cursor: pointer;
  font-size: 0.7rem;
  color: var(--text-muted, #999);
}

.table-block th:hover .table-del-col,
.table-block td:hover .table-del-row {
  opacity: 1;
}

.table-block th .table-del-col:hover,
.table-block td .table-del-row:hover {
  color: var(--error-color, #ef4444);
}

/* Dark mode adjustments */
[data-theme="dark"] .table-block {
  border-color: var(--border-color, #333);
}

[data-theme="dark"] .table-block th {
  background: var(--bg-secondary, #2a2a2a);
  color: var(--text-secondary, #aaa);
}

[data-theme="dark"] .table-block td {
  background: var(--bg-primary, #1a1a1a);
}

[data-theme="dark"] .table-toolbar button {
  background: var(--bg-secondary, #2a2a2a);
  border-color: var(--border-color, #333);
  color: var(--text-secondary, #aaa);
}

/* =========================================================================
   ON-313: Image block styles
   ========================================================================= */

.image-block {
  position: relative;
  margin: 1rem 0;
  padding: 0;
  border: none;
  outline: none;
  display: flex;
  flex-direction: column;
}

/* Alignment variants */
.image-block[data-alignment="left"] {
  align-items: flex-start;
}

.image-block[data-alignment="center"] {
  align-items: center;
}

.image-block[data-alignment="full"] {
  align-items: stretch;
}

.image-block[data-alignment="full"] .image-resize-wrapper {
  width: 100% !important;
  max-width: 100% !important;
}

/* Resize wrapper */
.image-resize-wrapper {
  position: relative;
  display: inline-block;
  max-width: 100%;
  line-height: 0;
}

.image-resize-wrapper img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 4px;
  cursor: default;
}

/* Resize handles — only visible on hover */
.image-resize-handle {
  position: absolute;
  width: 10px;
  height: 10px;
  background: var(--accent-color, #0066cc);
  border: 2px solid var(--bg-primary, #fff);
  border-radius: 50%;
  opacity: 0;
  transition: opacity 0.15s ease;
  z-index: 5;
  cursor: nwse-resize;
}

.image-resize-wrapper:hover .image-resize-handle,
.image-block:focus-within .image-resize-handle {
  opacity: 1;
}

.image-resize-nw {
  top: -5px;
  left: -5px;
  cursor: nwse-resize;
}

.image-resize-ne {
  top: -5px;
  right: -5px;
  cursor: nesw-resize;
}

.image-resize-sw {
  bottom: -5px;
  left: -5px;
  cursor: nesw-resize;
}

.image-resize-se {
  bottom: -5px;
  right: -5px;
  cursor: nwse-resize;
}

/* Image caption */
.image-caption {
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-secondary, #666);
  padding: 6px 8px;
  margin-top: 4px;
  outline: none;
  min-height: 1.2em;
  max-width: 100%;
}

.image-caption:empty::before {
  content: "Add a caption...";
  color: var(--text-muted, #999);
  font-style: italic;
}

.image-caption:focus {
  background: var(--bg-secondary);
  border-radius: 4px;
}

/* Image alignment toolbar — visible on hover */
.image-toolbar {
  display: flex;
  gap: 2px;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.15s ease;
  padding: 4px 0;
}

.image-block:hover .image-toolbar,
.image-block:focus-within .image-toolbar {
  opacity: 1;
}

.image-align-btn {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  padding: 3px 8px;
  cursor: pointer;
  font-size: 0.75rem;
  color: var(--text-secondary, #666);
  line-height: 1;
  transition: background 0.1s, color 0.1s;
}

.image-align-btn:hover {
  background: var(--bg-tertiary, #e5e5e5);
  color: var(--text-primary, #1a1a1a);
}

.image-align-btn.active {
  background: var(--accent-color, #0066cc);
  color: #fff;
  border-color: var(--accent-color, #0066cc);
}

/* Dark mode */
[data-theme="dark"] .image-caption:focus {
  background: var(--bg-tertiary, #333);
}

[data-theme="dark"] .image-align-btn {
  background: var(--bg-secondary, #2a2a2a);
  border-color: var(--border-color, #333);
  color: var(--text-secondary, #aaa);
}

[data-theme="dark"] .image-align-btn:hover {
  background: var(--bg-tertiary, #444);
  color: var(--text-primary, #f0f0f0);
}

[data-theme="dark"] .image-resize-handle {
  border-color: var(--bg-primary, #1a1a1a);
}

/* =========================================================================
   ON-328: Embed block styles
   ========================================================================= */

.embed-block {
  margin: 1rem 0;
  border-radius: 8px;
  overflow: hidden;
  user-select: none;
}

/* Video embeds (YouTube, Vimeo) — responsive 16:9 aspect ratio */
.embed-iframe-wrapper {
  position: relative;
  width: 100%;
  padding-bottom: 56.25%; /* 16:9 */
  height: 0;
  overflow: hidden;
  border-radius: 8px;
  background: var(--bg-tertiary, #e5e5e5);
}

.embed-iframe-wrapper iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: none;
  border-radius: 8px;
}

/* Generic URL preview card */
.embed-card {
  display: flex;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  transition: box-shadow 0.15s ease;
  max-height: 120px;
}

.embed-card:hover {
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.embed-card-thumbnail {
  flex: 0 0 120px;
  min-height: 80px;
  overflow: hidden;
  background: var(--bg-tertiary, #e5e5e5);
}

.embed-card-thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.embed-card-body {
  flex: 1;
  padding: 10px 14px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-width: 0;
}

.embed-card-title {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-primary, #1a1a1a);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  margin-bottom: 4px;
}

.embed-card-description {
  font-size: 0.8rem;
  color: var(--text-secondary, #666);
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  line-height: 1.3;
  margin-bottom: 4px;
}

.embed-card-url {
  font-size: 0.7rem;
  color: var(--text-muted, #999);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* Dark mode */
[data-theme="dark"] .embed-card {
  border-color: var(--border-color, #333);
}

[data-theme="dark"] .embed-card:hover {
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

[data-theme="dark"] .embed-card-thumbnail {
  background: var(--bg-tertiary, #333);
}

[data-theme="dark"] .embed-iframe-wrapper {
  background: var(--bg-tertiary, #333);
}

/* ============================================================
   ON-336: Trash page
   ============================================================ */

.trash-page {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: var(--space-8) var(--space-4);
  animation: page-fade-in 0.3s ease-out;
}

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

.trash-title {
  font-size: var(--text-2xl);
  font-weight: 700;
  line-height: var(--leading-tight);
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin: 0 0 0.25rem;
}

.trash-subtitle {
  color: var(--text-secondary);
  font-size: 0.875rem;
  margin: 0;
}

/* ON-374: Bulk action bar */
.trash-header-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
}

.trash-bulk-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.625rem 0.875rem;
  margin-bottom: 1rem;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
}

.trash-bulk-count {
  font-size: 0.85rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.trash-bulk-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.trash-confirm-empty {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.trash-confirm-text {
  font-size: 0.8rem;
  color: var(--error-color);
  font-weight: 500;
}

.trash-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.trash-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.75rem 1rem;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  background: var(--bg-primary);
}

.trash-item:hover {
  background: var(--bg-secondary);
}

.trash-item-info {
  flex: 1;
  min-width: 0;
}

.trash-item-title {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-primary);
  margin: 0 0 0.25rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.trash-item-preview {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin: 0 0 0.25rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.trash-item-date {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.trash-item-actions {
  display: flex;
  gap: 0.5rem;
  flex-shrink: 0;
}

.trash-empty {
  text-align: center;
  padding: 3rem 1rem;
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* ============================================================
   Shared list page styles (Favorites, Templates)
   ============================================================ */

.list-page {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: var(--space-8) var(--space-4);
  animation: page-fade-in 0.3s ease-out;
}

.list-page-header {
  margin-bottom: 2rem;
}

.list-page-header-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
}

.list-page-title {
  font-size: var(--text-2xl);
  font-weight: 700;
  line-height: var(--leading-tight);
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin: 0 0 0.25rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.list-page-title .nav-icon {
  width: 24px;
  height: 24px;
  opacity: 0.8;
}

.list-page-subtitle {
  color: var(--text-secondary);
  font-size: 0.875rem;
  margin: 0;
}

.list-page-count {
  font-size: 0.85rem;
  color: var(--text-secondary);
  font-weight: 500;
  margin-bottom: 0.75rem;
}

.list-page-items {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.list-page-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.625rem 0.875rem;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  background: var(--bg-primary);
  text-decoration: none;
  color: var(--text-primary);
  transition: background-color 0.15s, border-color 0.15s;
}

.list-page-item:hover {
  background: var(--bg-secondary);
  border-color: color-mix(in srgb, var(--accent-color) 30%, var(--border-color));
  color: var(--text-primary);
}

.list-page-item-icon {
  font-size: 1.1rem;
  width: 1.5rem;
  text-align: center;
  flex-shrink: 0;
}

.list-page-item-info {
  flex: 1;
  min-width: 0;
}

.list-page-item-title {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-primary);
  margin: 0 0 0.15rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.list-page-item-preview {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.list-page-item-date {
  font-size: 0.75rem;
  color: var(--text-muted);
  flex-shrink: 0;
  white-space: nowrap;
}

.list-page-empty {
  text-align: center;
  padding: 4rem 1rem;
  color: var(--text-muted);
}

.list-page-empty p {
  margin: 0;
  font-size: 0.95rem;
}

.list-page-empty-icon {
  margin-bottom: 1rem;
}

.list-page-empty-icon .nav-icon {
  width: 40px;
  height: 40px;
  opacity: 0.3;
}

.list-page-empty-hint {
  font-size: 0.85rem !important;
  margin-top: 0.5rem !important;
  color: var(--text-secondary);
}

/* ON-383: Recent Notes sidebar section */
.sidebar-recent {
  padding: 0.5rem 0;
}

.recent-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  padding: 0.25rem 0.75rem;
  color: var(--text-secondary);
  font-size: 0.85rem;
  cursor: pointer;
  border-radius: 4px;
  text-decoration: none;
}

.recent-item:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

.recent-title {
  flex: 1;
  min-width: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.recent-time {
  flex-shrink: 0;
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* ON-392: Consistent styling with neighboring action buttons */
.note-favorite-btn {
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.25rem 0.375rem;
  color: var(--text-muted);
  display: inline-flex;
  align-items: center;
  border-radius: 6px;
  transition: background-color 0.15s ease, color 0.15s ease;
}

.note-favorite-btn:hover {
  background-color: var(--bg-tertiary);
  color: #f59e0b;
}

.note-favorite-btn.is-favorite {
  color: #f59e0b;
}

/* Template badge (shown when page is marked as template) */
.note-template-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.125rem 0.5rem;
  font-size: 0.6875rem;
  font-weight: 500;
  color: var(--accent-color);
  background: color-mix(in srgb, var(--accent-color) 10%, transparent);
  border-radius: 999px;
  letter-spacing: 0.01em;
  white-space: nowrap;
  user-select: none;
}

/* Actions dropdown */
.actions-dropdown-wrapper {
  position: relative;
  display: inline-flex;
}

.note-actions-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  background: none;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 0.25rem 0.625rem;
  font-size: 0.8125rem;
  color: var(--text-secondary);
  cursor: pointer;
  transition: background-color 0.15s ease, border-color 0.15s ease;
}

.note-actions-btn:hover {
  background-color: var(--bg-tertiary);
  border-color: var(--text-muted);
}

.actions-dropdown-backdrop {
  position: fixed;
  inset: 0;
  z-index: 99;
}

.actions-dropdown {
  position: absolute;
  top: calc(100% + 4px);
  right: 0;
  min-width: 200px;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
  padding: 4px;
  z-index: 100;
  animation: dropdown-enter 0.1s ease;
}

.actions-dropdown-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  width: 100%;
  padding: 0.5rem 0.625rem;
  border: none;
  background: none;
  border-radius: 6px;
  font-size: 0.8125rem;
  color: var(--text-primary);
  cursor: pointer;
  text-decoration: none;
  transition: background-color 0.1s ease;
}

.actions-dropdown-item:hover {
  background-color: var(--bg-tertiary);
}

.actions-dropdown-item svg {
  flex-shrink: 0;
  color: var(--text-muted);
}

.actions-dropdown-separator {
  height: 1px;
  background: var(--border-color);
  margin: 4px 0;
}

.actions-dropdown-item-danger {
  color: #ef4444;
}

.actions-dropdown-item-danger:hover {
  background-color: rgba(239, 68, 68, 0.08);
}

.actions-dropdown-item-danger svg {
  color: #ef4444;
}

/* ON-409: Export format dropdown label */
.actions-dropdown-label {
  padding: 6px 12px 4px;
  font-size: 11px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* ON-409: Indented export items */
.actions-dropdown-item-indented {
  padding-left: 24px;
}

/* ================================================================
   ON-334: Sidebar Resize Handle & Collapse Toggle
   ================================================================ */

/* Resize handle: thin draggable strip between sidebar and content */
.sidebar-resize-handle {
  width: 4px;
  cursor: col-resize;
  background: transparent;
  flex-shrink: 0;
  position: relative;
  z-index: 10;
  transition: background-color 0.15s ease;
}

.sidebar-resize-handle:hover,
.sidebar-resizing .sidebar-resize-handle {
  background-color: var(--accent-color);
}

/* Broader hit area via pseudo-element */
.sidebar-resize-handle::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: -4px;
  right: -4px;
}

/* Hide resize handle when sidebar is collapsed */
.sidebar-collapsed .sidebar-resize-handle {
  display: none;
}

/* Prevent text selection and force cursor during drag */
.sidebar-resizing {
  user-select: none;
  cursor: col-resize !important;
}

.sidebar-resizing * {
  cursor: col-resize !important;
}

/* Collapse toggle button — in sidebar header */
.sidebar-collapse-btn {
  width: 24px;
  height: 24px;
  border-radius: 4px;
  border: 1px solid var(--border-color);
  background: var(--bg-secondary);
  color: var(--text-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  flex-shrink: 0;
  transition: color 0.15s ease, background-color 0.15s ease;
}

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

/* Rotate chevron when collapsed */
.collapse-icon.collapsed {
  transform: rotate(180deg);
}

.collapse-icon {
  transition: transform 0.2s ease;
}

/* When collapsed, show a small expand button at the left edge */
.sidebar-collapsed .sidebar-wrapper {
  border-right: none;
}

.sidebar-collapsed .sidebar-collapse-btn {
  position: fixed;
  left: 4px;
  top: 12px;
  right: auto;
  z-index: 50;
  border: 1px solid var(--border-color);
  background: var(--bg-primary);
  box-shadow: var(--shadow);
}

/* Inbox button in sidebar header — same size as collapse button */
.inbox-btn {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.375rem;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  cursor: pointer;
  transition: all 0.2s;
}

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

.inbox-btn svg {
  display: block;
  width: 16px;
  height: 16px;
}

/* Red notification dot */
.inbox-badge {
  position: absolute;
  top: 2px;
  right: 2px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: #ef4444;
  border: 1.5px solid var(--bg-primary);
  animation: inbox-badge-pulse 2s ease-in-out infinite;
}

@keyframes inbox-badge-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

/* Quick actions bar (below workspace switcher) */
.sidebar-quick-actions {
  display: flex;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  border-bottom: 1px solid var(--border-color);
}

.quick-action-btn {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.375rem;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
}

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

.quick-action-btn svg {
  display: block;
  width: 16px;
  height: 16px;
}

/* Numeric badge for trash count */
.quick-action-badge {
  position: absolute;
  top: -4px;
  right: -4px;
  min-width: 16px;
  height: 16px;
  padding: 0 4px;
  border-radius: 8px;
  background-color: var(--accent-color);
  color: white;
  font-size: 10px;
  font-weight: 600;
  line-height: 16px;
  text-align: center;
}

/* ================================================================
   ON-316: Command Palette
   ================================================================ */

.command-palette-overlay {
  position: fixed;
  inset: 0;
  z-index: 10000;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 15vh;
  /* ON-392: entry/exit animations now driven by AnimatedShow wrapper classes */
}

.command-palette {
  width: 100%;
  max-width: 600px;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  max-height: 60vh;
  display: flex;
  flex-direction: column;
  /* ON-392: entry/exit animations now driven by AnimatedShow wrapper classes */
}

.command-palette-input-wrapper {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.875rem 1rem;
  border-bottom: 1px solid var(--border-color);
}

.command-palette-search-icon {
  color: var(--text-muted);
  flex-shrink: 0;
}

.command-palette-input {
  flex: 1;
  border: none;
  outline: none;
  background: transparent;
  color: var(--text-primary);
  font-size: 1rem;
  line-height: 1.5;
}

.command-palette-input::placeholder {
  color: var(--text-muted);
}

.command-palette-shortcut {
  font-size: 0.75rem;
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
  border: 1px solid var(--border-color);
  background: var(--bg-tertiary);
  color: var(--text-muted);
  font-family: inherit;
  flex-shrink: 0;
}

.command-palette-results {
  overflow-y: auto;
  padding: 0.5rem 0;
}

.command-palette-empty {
  padding: 2rem 1rem;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.875rem;
}

.command-palette-group-header {
  padding: 0.5rem 1rem 0.25rem;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
}

.command-palette-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  width: 100%;
  padding: 0.5rem 1rem;
  border: none;
  background: transparent;
  color: var(--text-primary);
  cursor: pointer;
  text-align: left;
  font-size: 0.875rem;
  transition: background-color 0.1s ease;
}

.command-palette-item:hover,
.command-palette-item.selected {
  background-color: var(--bg-tertiary);
}

.command-palette-item.selected {
  background-color: var(--accent-color);
  color: white;
}

.command-palette-item.selected .command-palette-item-desc {
  color: rgba(255, 255, 255, 0.7);
}

.command-palette-item.selected .command-palette-item-icon {
  color: rgba(255, 255, 255, 0.9);
}

.command-palette-item-icon {
  width: 28px;
  height: 28px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  font-weight: 700;
  flex-shrink: 0;
}

.command-palette-item-icon.action-icon {
  background-color: var(--success-color);
  color: white;
}

.command-palette-item-icon.note-icon {
  background-color: var(--accent-color);
  color: white;
}

.command-palette-item-icon.cmd-icon {
  background-color: var(--bg-tertiary);
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
}

.command-palette-item-content {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
  min-width: 0;
}

.command-palette-item-label {
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.command-palette-item-desc {
  font-size: 0.75rem;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Mobile adjustments */
@media (max-width: 768px) {
  .command-palette-overlay {
    padding-top: 5vh;
    padding-left: 1rem;
    padding-right: 1rem;
  }

  .command-palette {
    max-height: 70vh;
  }
}

/* ================================================================
   ON-387: Table of Contents Panel
   ================================================================ */

.toc-panel {
  margin-top: 1.5rem;
  border-top: 1px solid var(--border-color);
  padding-top: 0.75rem;
}

.toc-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  width: 100%;
  padding: 0.4rem 0;
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
}

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

.toc-chevron {
  display: inline-block;
  width: 0;
  height: 0;
  border-left: 5px solid currentColor;
  border-top: 4px solid transparent;
  border-bottom: 4px solid transparent;
  transition: transform 0.15s;
}

.toc-chevron.expanded {
  transform: rotate(90deg);
}

.toc-body {
  overflow: hidden;
  transition: max-height 0.2s ease;
  max-height: 500px;
}

.toc-body.collapsed {
  max-height: 0;
}

.toc-list {
  list-style: none;
  padding: 0;
  margin: 0.25rem 0 0;
}

.toc-item {
  padding: 0.25rem 0.5rem;
  font-size: 0.85rem;
  color: var(--text-secondary);
  cursor: pointer;
  border-radius: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.toc-item:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

/* Indentation by heading level */
.toc-indent-1 { padding-left: 0.5rem; font-weight: 600; }
.toc-indent-2 { padding-left: 1.25rem; }
.toc-indent-3 { padding-left: 2rem; font-size: 0.8rem; }
.toc-indent-4 { padding-left: 2.75rem; font-size: 0.8rem; }
.toc-indent-5 { padding-left: 3.5rem; font-size: 0.75rem; }
.toc-indent-6 { padding-left: 4.25rem; font-size: 0.75rem; }

/* ================================================================
   ON-382: Keyboard Shortcuts Dialog
   ================================================================ */

.shortcuts-backdrop {
  position: fixed;
  inset: 0;
  z-index: 10001;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 10vh;
  outline: none; /* ON-392: suppress focus ring when programmatically focused for Esc handling */
  /* ON-392: entry/exit animations now driven by AnimatedShow wrapper classes */
}

.shortcuts-dialog {
  width: 100%;
  max-width: 560px;
  max-height: 75vh;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  /* ON-392: entry/exit animations now driven by AnimatedShow wrapper classes */
}

.shortcuts-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border-color);
}

.shortcuts-title {
  margin: 0;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
}

.shortcuts-close {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 1.25rem;
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
}

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

.shortcuts-body {
  overflow-y: auto;
  padding: 0.75rem 1.25rem 1.25rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.shortcuts-group {
  break-inside: avoid;
}

.shortcuts-group-title {
  margin: 0 0 0.5rem;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
}

.shortcuts-list {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.shortcut-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.2rem 0;
}

.shortcut-key {
  font-family: var(--font-mono, ui-monospace, monospace);
  font-size: 0.75rem;
  padding: 0.15rem 0.4rem;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  color: var(--text-secondary);
  white-space: nowrap;
  min-width: fit-content;
}

.shortcut-desc {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

@media (max-width: 640px) {
  .shortcuts-body {
    grid-template-columns: 1fr;
  }

  .shortcuts-dialog {
    max-height: 80vh;
    margin: 0 1rem;
  }
}

/* ================================================================
   ON-338: Animations & Transitions
   ================================================================ */

/* ── Keyframes ────────────────────────────────────────────────── */

/* Page content fade + slide-up */
@keyframes page-fade-in {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Modal scale + slide + fade entrance */
@keyframes modal-scale-in {
  from {
    opacity: 0;
    transform: scale(0.9) translateY(-8px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

/* Overlay fade-in */
@keyframes overlay-fade-in {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

/* Dropdown slide + fade (menus, autocomplete, etc.) */
@keyframes dropdown-slide-in {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ON-392: Exit animation keyframes (matching the entry animations above) */

@keyframes modal-scale-out {
  from {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
  to {
    opacity: 0;
    transform: scale(0.95) translateY(4px);
  }
}

@keyframes overlay-fade-out {
  from {
    opacity: 1;
  }
  to {
    opacity: 0;
  }
}

@keyframes dropdown-slide-out {
  from {
    opacity: 1;
    transform: translateY(0);
  }
  to {
    opacity: 0;
    transform: translateY(-8px);
  }
}

/* ON-392: AnimatedShow wrapper classes for enter/exit transitions */

.modal-enter .command-palette-overlay,
.modal-enter .shortcuts-backdrop {
  animation: overlay-fade-in 0.15s ease-out forwards;
}

.modal-enter .command-palette,
.modal-enter .shortcuts-dialog {
  animation: modal-scale-in 0.2s ease-out forwards;
}

.modal-exit .command-palette-overlay,
.modal-exit .shortcuts-backdrop {
  animation: overlay-fade-out 0.15s ease-in forwards;
}

.modal-exit .command-palette,
.modal-exit .shortcuts-dialog {
  animation: modal-scale-out 0.15s ease-in forwards;
}

.dropdown-enter {
  animation: dropdown-slide-in 0.12s ease-out forwards;
}

.dropdown-exit {
  animation: dropdown-slide-out 0.1s ease-in forwards;
}

/* ── Consistent hover effects ─────────────────────────────────── */

/* Sidebar nav items */
.sidebar-nav-item {
  transition: background-color 0.15s ease, color 0.15s ease;
}

.sidebar-nav-item:hover {
  background-color: var(--bg-tertiary);
}

/* Note list items */
.note-card {
  transition: box-shadow 0.15s ease, transform 0.1s ease;
}

.note-card:hover {
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  transform: translateY(-1px);
}

/* Generic button hover transitions */
.btn,
.sidebar-nav-item,
.folder-item-row,
.tag-item,
.search-result-item,
.breadcrumb-link {
  transition: background-color 0.15s ease, color 0.15s ease;
}

/* ================================================================
   ON-333: Cover Image & Page Icon
   ================================================================ */

/* Cover image banner — sits above the header area */
.note-cover {
  position: relative;
  width: 100%;
  height: 200px;
  overflow: hidden;
  margin-bottom: var(--space-2);
}

.note-cover-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* Cover hover actions (Change / Remove) */
.note-cover-actions {
  position: absolute;
  bottom: var(--space-2);
  right: var(--space-3);
  display: flex;
  gap: var(--space-1);
  opacity: 0;
  transition: opacity 0.15s ease;
}

.note-cover:hover .note-cover-actions {
  opacity: 1;
}

.note-cover-btn {
  padding: var(--space-1) var(--space-3);
  border: none;
  border-radius: 4px;
  background: rgba(0, 0, 0, 0.6);
  color: #fff;
  font-size: var(--text-xs);
  font-family: var(--font-sans);
  cursor: pointer;
  backdrop-filter: blur(4px);
  transition: background 0.15s;
}

.note-cover-btn:hover {
  background: rgba(0, 0, 0, 0.8);
}

.note-cover-btn-remove:hover {
  background: var(--danger-color);
}

/* Header area — wraps hover controls, icon, and title zone */
.note-header-area {
  position: relative;
}

/* Notion-style hover controls: subtle ghost text above the title */
.note-hover-controls {
  display: flex;
  gap: 2px;
  min-height: 26px;
  padding: var(--space-1) 0;
  opacity: 0;
  transition: opacity 0.15s ease;
}

.note-header-area:hover .note-hover-controls {
  opacity: 1;
}

/* ON-392: Use CSS variables instead of hardcoded rgba/px — auto-adapts to dark mode */
.note-hover-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.1875rem 0.375rem;
  border: none;
  border-radius: 4px;
  background: none;
  color: var(--text-muted);
  font-size: 0.75rem;
  font-family: var(--font-sans);
  cursor: pointer;
  transition: background-color 0.1s ease, color 0.1s ease;
  line-height: 1;
  opacity: 0.7;
}

.note-hover-btn svg {
  opacity: 0.8;
  flex-shrink: 0;
}

.note-hover-btn:hover {
  background-color: var(--bg-tertiary);
  color: var(--text-secondary);
  opacity: 1;
}

/* ON-391: Cover input panel with Upload/Link tabs */
.cover-input-panel {
  padding: var(--space-2) 0;
}

.cover-input-tabs {
  display: flex;
  align-items: center;
  gap: 2px;
  margin-bottom: var(--space-2);
  border-bottom: 1px solid var(--border-color);
  padding-bottom: var(--space-1);
}

.cover-tab {
  padding: var(--space-1) var(--space-3);
  border: none;
  background: none;
  border-radius: 4px 4px 0 0;
  cursor: pointer;
  font-size: var(--text-sm);
  font-family: var(--font-sans);
  color: var(--text-secondary);
  transition: color 0.1s, background 0.1s;
}

.cover-tab:hover {
  background: var(--bg-secondary);
  color: var(--text-primary);
}

.cover-tab-active {
  color: var(--text-primary);
  font-weight: 500;
  border-bottom: 2px solid var(--accent-color);
}

.cover-tab-close {
  margin-left: auto;
  border: none;
  background: none;
  cursor: pointer;
  font-size: 1.1rem;
  color: var(--text-muted);
  padding: 0 var(--space-1);
  line-height: 1;
}

.cover-tab-close:hover {
  color: var(--text-primary);
}

/* Upload drop zone */
.cover-dropzone {
  border: 2px dashed var(--border-color);
  border-radius: 8px;
  padding: var(--space-6);
  text-align: center;
  transition: border-color 0.15s, background 0.15s;
}

.cover-dropzone-active {
  border-color: var(--accent-color);
  background: color-mix(in srgb, var(--accent-color) 6%, transparent);
}

.cover-dropzone-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  color: var(--text-secondary);
  font-size: var(--text-sm);
}

.cover-dropzone-content svg {
  color: var(--text-muted);
}

/* Upload loading state */
.cover-uploading {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  color: var(--text-secondary);
  font-size: var(--text-sm);
  padding: var(--space-2) 0;
}

.cover-uploading-spinner {
  width: 18px;
  height: 18px;
  border: 2px solid var(--border-color);
  border-top-color: var(--accent-color);
  border-radius: 50%;
  animation: cover-spin 0.6s linear infinite;
}

@keyframes cover-spin {
  to { transform: rotate(360deg); }
}

/* Link tab input */
.cover-link-input {
  display: flex;
  gap: var(--space-2);
  align-items: center;
}

.cover-link-input input {
  flex: 1;
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  background: var(--bg-primary);
  color: var(--text-primary);
  font-size: var(--text-sm);
  font-family: var(--font-sans);
}

.cover-link-input input:focus {
  outline: none;
  border-color: var(--accent-color);
}

/* ON-391: Cover reposition slider */
.cover-reposition {
  position: absolute;
  bottom: var(--space-2);
  left: var(--space-3);
  opacity: 0;
  transition: opacity 0.15s ease;
}

.note-cover:hover .cover-reposition {
  opacity: 1;
}

.cover-reposition-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 120px;
  height: 4px;
  border-radius: 2px;
  background: rgba(255, 255, 255, 0.3);
  backdrop-filter: blur(4px);
  outline: none;
  cursor: pointer;
}

.cover-reposition-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 1px 3px rgba(0,0,0,0.3);
  cursor: pointer;
}

.cover-reposition-slider::-moz-range-thumb {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 1px 3px rgba(0,0,0,0.3);
  border: none;
  cursor: pointer;
}

/* Page icon (above title) */
.note-icon-area {
  position: relative;
  padding: 0 var(--space-10);
  margin-top: var(--space-2);
}

.note-page-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  line-height: 1;
  padding: var(--space-1);
  border: none;
  background: none;
  cursor: pointer;
  border-radius: 6px;
  transition: background 0.15s;
}

.note-page-icon:hover {
  background: var(--bg-tertiary);
}

/* ================================================================
   ON-333: Emoji Picker
   ================================================================ */

.emoji-picker {
  position: absolute;
  z-index: 500;
  top: 100%;
  left: 0;
  width: 320px;
  max-height: 360px;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  animation: dropdown-slide-in 0.2s ease-out;
}

.emoji-picker-header {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  border-bottom: 1px solid var(--border-color);
}

.emoji-picker-search {
  flex: 1;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: var(--space-1) var(--space-2);
  font-size: var(--text-sm);
  font-family: var(--font-sans);
  background: var(--bg-secondary);
  color: var(--text-primary);
  outline: none;
}

.emoji-picker-search:focus {
  border-color: var(--accent-color);
}

.emoji-picker-close {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.25rem;
  cursor: pointer;
  padding: var(--space-1);
  border-radius: 4px;
  line-height: 1;
}

.emoji-picker-close:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

.emoji-picker-body {
  overflow-y: auto;
  padding: var(--space-2);
}

.emoji-picker-remove {
  width: 100%;
  padding: var(--space-2) var(--space-3);
  border: none;
  border-radius: 6px;
  background: none;
  color: var(--text-secondary);
  font-size: var(--text-sm);
  font-family: var(--font-sans);
  cursor: pointer;
  text-align: left;
  margin-bottom: var(--space-2);
}

.emoji-picker-remove:hover {
  background: color-mix(in srgb, var(--error-color) 10%, transparent);
  color: var(--error-color);
}

.emoji-picker-category {
  margin-bottom: var(--space-3);
}

.emoji-picker-category-title {
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: var(--space-1);
  padding: 0 var(--space-1);
}

.emoji-picker-grid {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  gap: 2px;
}

.emoji-picker-item {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: none;
  border-radius: 6px;
  background: none;
  font-size: 1.375rem;
  cursor: pointer;
  transition: background 0.1s;
}

.emoji-picker-item:hover {
  background: var(--bg-tertiary);
}

/* Icon in note list / sidebar */
.note-icon-inline {
  flex-shrink: 0;
  font-size: 1rem;
  line-height: 1;
}

/* ── ON-337: Template Chooser ────────────────────────────────── */

.template-chooser-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  animation: fadeIn 0.15s ease-out;
}

.template-chooser {
  background: var(--bg-primary);
  border-radius: 12px;
  box-shadow: var(--shadow-lg);
  width: 90vw;
  max-width: 620px;
  max-height: 80vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  animation: slideUp 0.2s ease-out;
}

@keyframes slideUp {
  from { transform: translateY(20px); opacity: 0; }
  to   { transform: translateY(0); opacity: 1; }
}

.template-chooser-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--space-5);
  border-bottom: 1px solid var(--border-color);
}

.template-chooser-header h2 {
  font-size: var(--text-lg);
  font-weight: 600;
  margin: 0;
}

.template-chooser-close {
  background: none;
  border: none;
  font-size: 1.2rem;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 4px;
}
.template-chooser-close:hover {
  background: var(--bg-secondary);
  color: var(--text-primary);
}

.template-chooser-search {
  padding: var(--space-3) var(--space-5);
  border-bottom: 1px solid var(--border-color);
}

.template-chooser-search input {
  width: 100%;
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  background: var(--bg-secondary);
  color: var(--text-primary);
  font-size: var(--text-sm);
}
.template-chooser-search input:focus {
  outline: none;
  border-color: var(--accent-color);
}

.template-chooser-body {
  padding: var(--space-4) var(--space-5);
  overflow-y: auto;
  flex: 1;
}

.template-section {
  margin-top: var(--space-4);
}

.template-section-title {
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin: 0 0 var(--space-2);
}

.template-grid {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.template-card {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  background: var(--bg-primary);
  cursor: pointer;
  text-align: left;
  width: 100%;
  transition: all 0.15s ease;
}
.template-card:hover {
  border-color: var(--accent-color);
  background: var(--bg-secondary);
}

.template-card-blank {
  margin-bottom: var(--space-2);
  border-style: dashed;
}

.template-card-icon {
  font-size: 1.5rem;
  line-height: 1;
  flex-shrink: 0;
  width: 36px;
  text-align: center;
}

.template-card-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.template-card-title {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-primary);
}

.template-card-desc {
  font-size: var(--text-xs);
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.template-loading {
  text-align: center;
  padding: var(--space-6);
  color: var(--text-muted);
  font-size: var(--text-sm);
}

/* ── prefers-reduced-motion ───────────────────────────────────── */

/* ── ON-521: Settings page — full-screen with own sidebar ───── */

/* Hide the app sidebar and its resize handle when Settings is active */
.layout.settings-active .sidebar-wrapper,
.layout.settings-active .sidebar-resize-handle {
  display: none;
}

/* Also hide mobile header, collapse button when in settings */
.layout.settings-active .mobile-header {
  display: none;
}

/* Make main-content fill the viewport without its usual padding */
.layout.settings-active .main-content {
  padding: 0;
}

/* ── Settings two-column layout ──────────────────────────────── */

.settings-layout {
  display: flex;
  height: 100vh;
  animation: page-fade-in 0.25s ease-out;
}

/* Settings navigation sidebar */
.settings-nav {
  width: 220px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  background: var(--bg-secondary);
  border-right: 1px solid var(--border-color);
  padding: 0;
}

.settings-nav-header {
  padding: var(--space-5) var(--space-5) var(--space-4);
}

.settings-nav-header h2 {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--text-primary);
  margin: 0;
  letter-spacing: -0.02em;
}

.settings-nav-list {
  list-style: none;
  padding: 0 var(--space-2);
  margin: 0;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.settings-nav-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  width: 100%;
  padding: 0.5rem 0.75rem;
  border: none;
  border-radius: 6px;
  background: none;
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-family: inherit;
  cursor: pointer;
  transition: background-color 0.15s, color 0.15s;
  text-align: left;
}

.settings-nav-item:hover {
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
}

.settings-nav-item.active {
  background-color: color-mix(in srgb, var(--accent-color) 12%, transparent);
  color: var(--accent-color);
}

.settings-nav-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  opacity: 0.7;
}

.settings-nav-item.active .settings-nav-icon {
  opacity: 1;
}

.settings-nav-footer {
  padding: var(--space-3) var(--space-2);
  border-top: 1px solid var(--border-color);
}

.settings-nav-back {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  width: 100%;
  padding: 0.45rem 0.75rem;
  border: none;
  border-radius: 6px;
  background: none;
  color: var(--text-muted);
  font-size: 0.8125rem;
  font-family: inherit;
  cursor: pointer;
  transition: background-color 0.15s, color 0.15s;
}

.settings-nav-back:hover {
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
}

.settings-nav-back svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

/* Settings content panel */
.settings-content {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-10) var(--space-10);
}

.settings-section-page {
  max-width: 560px;
}

.settings-section-title {
  font-size: var(--text-2xl);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin: 0 0 var(--space-8);
}

/* Shared close button for special pages (Settings, Trash, Graph) */
.page-close-btn {
  width: 28px;
  height: 28px;
  border-radius: 6px;
  border: none;
  background: none;
  color: var(--text-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  padding: 0;
  transition: color 0.15s, background-color 0.15s;
}

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

/* ── Settings mobile responsive ──────────────────────────────── */

@media (max-width: 768px) {
  .settings-layout {
    flex-direction: column;
    height: auto;
    min-height: 100vh;
  }

  .settings-nav {
    width: 100%;
    border-right: none;
    border-bottom: 1px solid var(--border-color);
    flex-shrink: 0;
  }

  .settings-nav-list {
    flex-direction: row;
    overflow-x: auto;
    gap: 0;
    padding: 0 var(--space-2) var(--space-2);
  }

  .settings-nav-item {
    white-space: nowrap;
    padding: 0.4rem 0.75rem;
    font-size: 0.8125rem;
  }

  .settings-nav-header {
    padding: var(--space-3) var(--space-4) 0;
  }

  .settings-nav-header h2 {
    font-size: var(--text-base);
  }

  .settings-nav-footer {
    display: none;
  }

  .settings-content {
    padding: var(--space-6) var(--space-4);
  }
}

/* ── Diff view (inline version comparison) ── */
.vh-diff {
  font-family: var(--font-mono, monospace);
  font-size: 0.8rem;
  line-height: 1.75;
}

/* Line number columns */
.vh-diff-ln {
  display: inline-block;
  width: 3em;
  text-align: right;
  padding-right: 0.75em;
  color: var(--text-muted);
  font-size: 0.7rem;
  user-select: none;
  opacity: 0.7;
  vertical-align: baseline;
}

/* +/- prefix */
.vh-diff-prefix {
  display: inline-block;
  width: 1.25em;
  text-align: center;
  user-select: none;
  font-weight: 600;
  font-size: 0.75rem;
  vertical-align: baseline;
}

/* Shared row style */
.vh-diff-same,
.vh-diff-added,
.vh-diff-removed {
  padding: 0 1rem 0 0;
  border-left: 3px solid transparent;
  transition: background-color 0.1s ease;
}

/* Unchanged lines */
.vh-diff-same {
  color: var(--text-secondary);
}
.vh-diff-same .vh-diff-prefix {
  color: var(--text-muted);
}

/* Added lines */
.vh-diff-added {
  background: var(--diff-added-bg);
  border-left-color: var(--diff-added-border);
  color: var(--diff-added-text);
}
.vh-diff-added .vh-diff-ln {
  color: var(--diff-added-text);
  opacity: 0.5;
}

/* Removed lines */
.vh-diff-removed {
  background: var(--diff-removed-bg);
  border-left-color: var(--diff-removed-border);
  color: var(--diff-removed-text);
}
.vh-diff-removed .vh-diff-ln {
  color: var(--diff-removed-text);
  opacity: 0.5;
}

/* Text content */
.vh-diff-text {
  white-space: pre-wrap;
  word-break: break-word;
}

/* ON-541: Author attribution label on diff lines */
.vh-diff-author {
  float: right;
  font-family: var(--font-sans);
  font-size: 0.65rem;
  font-weight: 500;
  color: var(--text-muted);
  background: var(--surface-alt);
  padding: 0 0.4em;
  border-radius: 3px;
  margin-left: 0.5em;
  user-select: none;
  line-height: 1.75;
}


.settings-section {
  margin-bottom: var(--space-8);
  padding-bottom: var(--space-8);
  border-bottom: 1px solid var(--border-color);
}

.settings-section:last-child {
  border-bottom: none;
}

.settings-section h2 {
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-4);
}

.settings-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.settings-field {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.settings-field label {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.settings-field input,
.settings-field select {
  padding: 0.6rem 0.75rem;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  background: var(--bg-primary);
  color: var(--text-primary);
  font-size: 0.9rem;
  font-family: inherit;
  transition: border-color 0.15s;
}

.settings-field input:focus,
.settings-field select:focus {
  outline: none;
  border-color: var(--accent-color);
}

.settings-field input.settings-readonly {
  background: var(--bg-secondary);
  color: var(--text-muted);
  cursor: not-allowed;
}

.settings-field select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23888' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.75rem center;
  padding-right: 2rem;
}

.settings-actions {
  margin-top: 0.5rem;
}

.settings-actions .btn {
  padding: 0.55rem 1.25rem;
  font-size: 0.875rem;
}

.settings-hint {
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
}

.settings-empty {
  font-size: 0.875rem;
  color: var(--text-muted);
}

/* ── ON-417: API Keys ──────────────────────────────────────────── */

.api-keys-create {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.api-keys-create input {
  flex: 1;
  padding: 0.45rem 0.65rem;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  background: var(--input-bg);
  color: var(--text-primary);
  font-size: 0.875rem;
}

.api-keys-create input:focus {
  border-color: var(--accent-color);
  box-shadow: 0 0 0 2px var(--accent-color-alpha);
}

.api-key-secret {
  background: var(--surface-raised);
  border: 1px solid var(--accent-color);
  border-radius: 8px;
  padding: 0.75rem 1rem;
  margin-bottom: 1rem;
}

.api-key-secret-header {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.api-key-secret-warn {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.api-key-secret-value {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.api-key-secret-value code {
  flex: 1;
  padding: 0.4rem 0.6rem;
  background: var(--code-bg);
  border-radius: 4px;
  font-size: 0.8rem;
  word-break: break-all;
  user-select: all;
}

.api-key-secret-dismiss {
  color: var(--text-muted);
  font-size: 0.8125rem;
}

.api-keys-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

.api-keys-table th {
  text-align: left;
  padding: 0.4rem 0.5rem;
  font-weight: 600;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border-color);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.api-keys-table td {
  padding: 0.5rem;
  border-bottom: 1px solid var(--border-subtle);
}

.api-keys-table tr:last-child td {
  border-bottom: none;
}

.api-key-prefix {
  font-size: 0.8125rem;
  color: var(--text-muted);
}

.api-key-revoked td {
  opacity: 0.5;
  text-decoration: line-through;
}

.api-key-badge-revoked {
  display: inline-block;
  margin-left: 0.4rem;
  padding: 0.1rem 0.35rem;
  border-radius: 4px;
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  background: var(--danger-bg, rgba(220, 50, 50, 0.1));
  color: var(--danger-color, #dc3232);
  text-decoration: none;
}

.btn-danger {
  background: var(--danger-bg, rgba(220, 50, 50, 0.1));
  color: var(--danger-color, #dc3232);
  border: 1px solid var(--danger-color, #dc3232);
}

.btn-danger:hover {
  background: var(--danger-color, #dc3232);
  color: #fff;
}

/* ── ON-392: Focus rings & micro-interactions ────────────────── */

/* Global focus-visible ring for keyboard users */
input:focus-visible,
button:focus-visible,
select:focus-visible,
textarea:focus-visible,
a:focus-visible,
[tabindex]:focus-visible {
  outline: 2px solid var(--accent-color);
  outline-offset: 2px;
}

/* Remove default outlines only when not using keyboard */
input:focus:not(:focus-visible),
button:focus:not(:focus-visible),
select:focus:not(:focus-visible),
textarea:focus:not(:focus-visible),
a:focus:not(:focus-visible),
[tabindex]:focus:not(:focus-visible) {
  outline: none;
}

/* Suppress focus ring on inputs that already have their own focus styling
   (border-color change, box-shadow, etc.) to avoid double indicators */
.sidebar-search input:focus-visible,
.command-palette-input:focus-visible,
.emoji-picker-search:focus-visible,
.template-chooser-search input:focus-visible,
.settings-field input:focus-visible,
.settings-field select:focus-visible,
.cover-link-input input:focus-visible,
.link-popup-input:focus-visible,
.auth-field input:focus-visible,
.date-filter-select:focus-visible,
.date-filter-input:focus-visible,
.sort-select:focus-visible,
.folder-select:focus-visible {
  outline: none;
}

/* Pressed state for primary/prominent buttons */
.btn:active,
.sidebar-new-btn:active,
.template-card:active,
.command-palette-item:active,
.settings-actions .btn:active {
  transform: scale(0.98);
}

/* ON-392: Only transition transform (for pressed states).
   Do NOT transition background-color/color here — it causes buttons to
   lag behind during instant theme switches (dark ↔ light). */
button {
  transition: transform 0.08s ease;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ================================================================
   Sidebar tree redesign — Notion-style navigation
   ================================================================ */

/* Tree note items (notes inside the folder tree) */
.tree-note-item {
  list-style: none;
}

.tree-note-link {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
  font-size: 0.85rem;
  color: var(--text-primary);
  text-decoration: none;
  transition: background-color 0.15s;
  overflow: hidden;
}

.tree-note-link:hover {
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
}

.tree-note-link.active {
  background-color: color-mix(in srgb, var(--accent-color) 12%, transparent);
  color: var(--accent-color);
}

.tree-note-icon {
  flex-shrink: 0;
  font-size: 0.8rem;
  width: 1.1rem;
  text-align: center;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
}

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

/* Sidebar tree section takes up available space and scrolls */
.sidebar-tree-section {
  flex: 1;
  overflow-y: auto;
  min-height: 0;
}

.btn-block {
  display: block;
  width: 100%;
}

/* Bottom nav links (Graph, Trash, Settings) */
.sidebar-bottom-nav {
  padding: 0.25rem 0.5rem;
  border-top: 1px solid var(--border-color);
}

.sidebar-bottom-nav .nav-item {
  font-size: 0.8rem;
  padding: 0.35rem 0.75rem;
}

/* Welcome / empty state page */
.welcome-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 60vh;
}

.welcome-content {
  text-align: center;
  color: var(--text-muted);
}

.welcome-title {
  font-size: var(--text-3xl);
  font-weight: 700;
  color: var(--text-primary);
  opacity: 0.15;
  margin-bottom: var(--space-4);
}

.welcome-subtitle {
  font-size: var(--text-base);
  margin-bottom: var(--space-6);
}

.welcome-shortcuts {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.welcome-shortcut {
  font-size: var(--text-sm);
}

.welcome-shortcut kbd {
  display: inline-block;
  padding: 0.125rem 0.375rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  border: 1px solid var(--border-color);
  border-radius: 3px;
  background-color: var(--bg-secondary);
}

/* Settings data section */
.settings-data-actions {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

/* ================================================================
   Info Panel — right-side collapsible panel for note metadata
   ================================================================ */

/* Layout wrapper: article + info panel side by side */
.note-layout {
  display: flex;
  align-items: flex-start;
  max-width: 100%;
  min-height: calc(100vh - 4rem);
}

.note-layout > .note-page {
  flex: 1;
  min-width: 0;
  max-width: var(--content-width);
  margin: 0 auto;
}

/* Resize handle (left edge of info panel) */
.info-panel-resize-handle {
  width: 4px;
  cursor: col-resize;
  background: transparent;
  flex-shrink: 0;
  position: relative;
  z-index: 10;
  transition: background-color 0.15s ease;
  align-self: stretch;
}

.info-panel-resize-handle:hover,
.info-panel-resizing .info-panel-resize-handle {
  background-color: var(--accent-color);
}

/* Broader hit area via pseudo-element */
.info-panel-resize-handle::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: -4px;
  right: -4px;
}

/* Prevent text selection during drag */
.info-panel-resizing {
  user-select: none;
  cursor: col-resize !important;
}

.info-panel-resizing * {
  cursor: col-resize !important;
}

/* The panel itself */
.info-panel {
  flex-shrink: 0;
  border-left: 1px solid var(--border-color);
  background: var(--bg-primary);
  overflow-y: auto;
  padding: var(--space-4) var(--space-3);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  height: calc(100vh - 4rem);
  position: sticky;
  top: 0;
}

/* Toggle button in the meta-bar */
.info-panel-toggle-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 0.25rem 0.375rem;
  color: var(--text-muted);
  cursor: pointer;
  transition: background-color 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.info-panel-toggle-btn:hover {
  background-color: var(--bg-tertiary);
  border-color: var(--text-muted);
  color: var(--text-secondary);
}

.info-panel-toggle-btn.active {
  background-color: color-mix(in srgb, var(--accent-color) 10%, transparent);
  border-color: color-mix(in srgb, var(--accent-color) 30%, transparent);
  color: var(--accent-color);
}

/* ── Collapsible sections ──────────────────────────────────── */

.info-section {
  padding-bottom: var(--space-3);
}

.info-section:last-child {
  padding-bottom: 0;
}

.info-section-header {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  width: 100%;
  background: none;
  border: none;
  padding: var(--space-2) 0;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  cursor: pointer;
  text-align: left;
  font-family: inherit;
}

.info-section-header:hover {
  color: var(--text-primary);
}

.info-section-body {
  overflow: hidden;
  max-height: 500px;
  transition: max-height 0.2s ease;
  padding-left: 0.75rem;
}

.info-section-body.collapsed {
  max-height: 0;
}

/* Chevron triangle */
.info-chevron {
  display: inline-block;
  width: 0;
  height: 0;
  border-left: 5px solid currentColor;
  border-top: 4px solid transparent;
  border-bottom: 4px solid transparent;
  transition: transform 0.15s ease;
  flex-shrink: 0;
}

.info-chevron.expanded {
  transform: rotate(90deg);
}

/* ── Table of Contents section ─────────────────────────────── */

.info-toc-list {
  list-style: none;
  padding: 0;
  margin: var(--space-1) 0 0;
}

.info-toc-item {
  padding: 0.2rem 0.5rem;
  font-size: 0.8rem;
  color: var(--text-secondary);
  cursor: pointer;
  border-radius: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.info-toc-item:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

/* ── Backlinks section ─────────────────────────────────────── */

.info-backlinks-list {
  list-style: none;
  padding: 0;
  margin: var(--space-1) 0 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.info-backlink-item {
  border-radius: 4px;
}

.info-backlink-link {
  display: block;
  padding: 0.35rem 0.5rem;
  border-radius: 4px;
  text-decoration: none;
  color: inherit;
  transition: background 0.1s ease;
}

.info-backlink-link:hover {
  background: var(--bg-tertiary);
}

.info-backlink-title {
  display: block;
  font-weight: 500;
  font-size: 0.8rem;
  color: var(--accent-color);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.info-backlink-context {
  display: block;
  font-size: 0.75rem;
  color: var(--text-muted);
  line-height: 1.3;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  margin-top: 2px;
}

/* ── Sub-pages section ─────────────────────────────────────── */

.info-subpages-list {
  list-style: none;
  padding: 0;
  margin: var(--space-1) 0 0;
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.info-subpage-link {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.3rem 0.5rem;
  border-radius: 4px;
  color: var(--text-primary);
  text-decoration: none;
  font-size: 0.8rem;
  transition: background-color 0.1s;
}

.info-subpage-link:hover {
  background-color: var(--bg-tertiary);
}

.info-subpage-icon {
  flex-shrink: 0;
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  color: var(--text-muted);
}

.info-subpage-title {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* Parent page link — subtle distinction from children */
.info-parent-link {
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 0.4rem;
  margin-bottom: 0.25rem;
}

.info-parent-badge {
  flex-shrink: 0;
  font-size: 0.65rem;
  font-weight: 500;
  color: var(--text-muted);
  background: var(--bg-tertiary);
  padding: 0.05rem 0.35rem;
  border-radius: 3px;
  margin-left: auto;
}

/* ── Details section ───────────────────────────────────────── */

.info-details {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding-top: var(--space-1);
}

.info-detail-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: var(--space-2);
  font-size: 0.78rem;
}

.info-detail-label {
  color: var(--text-muted);
  font-weight: 500;
  flex-shrink: 0;
}

.info-detail-value {
  color: var(--text-secondary);
  text-align: right;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ── Version History panel (Google Docs style, replaces info panel) ── */

.vh-panel {
  flex-shrink: 0;
  width: 260px;
  border-left: 1px solid var(--border-color);
  background: var(--bg-primary);
  height: calc(100vh - 4rem);
  position: sticky;
  top: 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* ── Header ── */

.vh-panel-header {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-3);
  border-bottom: 1px solid var(--border-color);
  flex-shrink: 0;
}

.vh-panel-back {
  display: flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 4px;
  border-radius: 6px;
  transition: background-color 0.12s, color 0.12s;
}
.vh-panel-back:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

.vh-panel-title {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--text-primary);
}

/* ── Version list ── */

.vh-panel-list {
  flex: 1;
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: var(--space-2);
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.vh-panel-item {
  display: flex;
  flex-direction: column;
  gap: 0;
  padding: var(--space-2) var(--space-3);
  border-radius: 6px;
  border: none;
  background: none;
  cursor: pointer;
  width: 100%;
  text-align: left;
  transition: background-color 0.1s;
}
.vh-panel-item:hover {
  background: var(--bg-secondary);
}
.vh-panel-item.selected {
  background: var(--bg-tertiary);
}

.vh-panel-item-row {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.vh-panel-item-label {
  font-family: var(--font-mono, monospace);
  font-weight: 600;
  font-size: var(--text-sm);
  color: var(--text-primary);
}

.vh-panel-item-badge {
  font-size: 0.5625rem;
  color: var(--accent-color);
  background: color-mix(in srgb, var(--accent-color) 10%, transparent);
  padding: 1px 5px;
  border-radius: 3px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.vh-panel-item-time {
  font-size: 0.6875rem;
  color: var(--text-muted);
  white-space: nowrap;
}

.vh-panel-item-author {
  font-size: 0.6875rem;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.vh-panel-empty {
  text-align: center;
  color: var(--text-muted);
  font-size: var(--text-sm);
  padding: var(--space-4) var(--space-2);
  line-height: 1.5;
}

/* ── Actions section (bottom of panel) ── */

.vh-panel-actions {
  flex-shrink: 0;
  padding: var(--space-3);
  border-top: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
}

.vh-panel-action-btn {
  display: block;
  width: 100%;
  font-size: 0.8125rem;
  padding: 7px 12px;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  background: none;
  color: var(--text-secondary);
  cursor: pointer;
  font-weight: 500;
  text-align: center;
  transition: background-color 0.12s, color 0.12s, border-color 0.12s;
}
.vh-panel-action-btn:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border-color: var(--text-muted);
}

.vh-panel-action-btn-danger {
  color: var(--danger-color);
  border-color: color-mix(in srgb, var(--danger-color) 30%, transparent);
}
.vh-panel-action-btn-danger:hover {
  background: color-mix(in srgb, var(--danger-color) 8%, transparent);
  color: var(--danger-color);
  border-color: var(--danger-color);
}

/* ── Confirm inline ── */

.vh-panel-confirm {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.vh-panel-confirm-text {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  text-align: center;
}

.vh-panel-confirm-btns {
  display: flex;
  gap: var(--space-2);
}

.vh-panel-confirm-btn {
  flex: 1;
  font-size: 0.8125rem;
  padding: 5px 12px;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  background: none;
  color: var(--text-secondary);
  cursor: pointer;
  text-align: center;
  transition: background-color 0.12s;
}
.vh-panel-confirm-btn:hover {
  background: var(--bg-tertiary);
}
.vh-panel-confirm-yes {
  color: var(--danger-color);
  border-color: var(--danger-color);
}
.vh-panel-confirm-yes:hover {
  background: color-mix(in srgb, var(--danger-color) 10%, transparent);
}

/* ── Responsive: hide panel on mobile ── */
@media (max-width: 768px) {
  .vh-panel {
    display: none !important;
  }
}

/* ── Version banner (shown when editing from a historical version) ── */

.version-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.5rem 0.75rem;
  margin-bottom: 0.5rem;
  background: color-mix(in srgb, var(--accent-color) 8%, transparent);
  border: 1px solid color-mix(in srgb, var(--accent-color) 25%, transparent);
  border-radius: 8px;
  font-size: 0.8125rem;
  gap: 0.75rem;
}

.version-banner-info {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-secondary);
  font-weight: 500;
}
.version-banner-info svg {
  color: var(--accent-color);
  flex-shrink: 0;
}

.version-banner-actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.version-banner-restore {
  background: var(--accent-color);
  border: 1px solid var(--accent-color);
  border-radius: 6px;
  padding: 0.25rem 0.75rem;
  font-size: 0.75rem;
  font-weight: 600;
  color: #fff;
  cursor: pointer;
  white-space: nowrap;
  transition: opacity 0.12s ease;
}
.version-banner-restore:hover {
  opacity: 0.85;
}

.version-banner-btn {
  background: none;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 0.25rem 0.625rem;
  font-size: 0.75rem;
  color: var(--text-secondary);
  cursor: pointer;
  white-space: nowrap;
  transition: background-color 0.12s ease;
}
.version-banner-btn:hover {
  background-color: var(--bg-tertiary);
}

/* ── Inline diff view (replaces editor when viewing version history) ── */

.vh-inline-diff {
  margin: 0.25rem 0;
  min-height: 200px;
  border: 1px solid var(--border-color);
  border-radius: 10px;
  background: var(--bg-secondary);
  overflow: hidden;
}

.vh-inline-diff .vh-diff {
  padding: 0.5rem 0;
}

.vh-inline-diff-empty {
  color: var(--text-muted);
  font-style: italic;
  text-align: center;
  padding: 3rem 1rem;
  font-size: var(--text-sm);
}

/* ── Mobile-only inline panels (hidden on desktop) ─────────── */

.note-inline-panels {
  display: none;
}

/* ── Responsive: hide info panel on mobile, show inline ────── */

@media (max-width: 768px) {
  .note-layout {
    display: block;
  }

  .info-panel,
  .info-panel-resize-handle,
  .info-panel-toggle-btn {
    display: none !important;
  }

  .note-inline-panels {
    display: block;
  }
}

/* ================================================================
   Sub-pages section (shown at the bottom of a note that has children)
   ================================================================ */
.sub-pages-section {
  margin-top: var(--space-6);
  padding-top: var(--space-4);
  border-top: 1px solid var(--border-subtle);
}

.sub-pages-title {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: var(--space-3);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.sub-pages-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.sub-page-link {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  text-decoration: none;
  transition: background-color 0.1s;
}

.sub-page-link:hover {
  background-color: var(--bg-tertiary);
}

.sub-page-icon {
  font-size: var(--text-base);
  flex-shrink: 0;
}

.sub-page-title {
  font-size: var(--text-sm);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ═══════════════════════════════════════════════════════════════
   Workspace Switcher (ON-533)
   ═══════════════════════════════════════════════════════════════ */

.workspace-switcher {
  position: relative;
  margin: var(--space-2) var(--space-3);
}

.workspace-switcher-trigger {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  width: 100%;
  padding: var(--space-2) var(--space-3);
  border: none;
  border-radius: 6px;
  background: transparent;
  color: var(--text-primary);
  font-size: var(--text-sm);
  font-weight: 500;
  font-family: inherit;
  cursor: pointer;
  transition: background-color 0.1s ease;
  text-align: left;
  overflow: hidden;
}

.workspace-switcher-trigger:hover {
  background-color: var(--bg-tertiary);
}

.workspace-switcher-trigger .ws-icon {
  width: 22px;
  height: 22px;
  border-radius: 4px;
  background: var(--accent-color);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 600;
  flex-shrink: 0;
}

.workspace-switcher-trigger .ws-name {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.workspace-switcher-trigger .ws-chevron {
  flex-shrink: 0;
  color: var(--text-muted);
  font-size: 0.625rem;
  transition: transform 0.15s ease;
}

.workspace-switcher-trigger .ws-chevron.open {
  transform: rotate(180deg);
}

.workspace-switcher-backdrop {
  position: fixed;
  inset: 0;
  z-index: 99;
}

.workspace-switcher-dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  margin-top: var(--space-1);
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  box-shadow: var(--shadow-md);
  z-index: 100;
  padding: 4px;
  animation: dropdown-enter 0.1s ease;
  max-height: 280px;
  overflow-y: auto;
}

.workspace-switcher-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  width: 100%;
  padding: var(--space-2) var(--space-3);
  border: none;
  background: none;
  cursor: pointer;
  font-size: var(--text-sm);
  color: var(--text-primary);
  text-align: left;
  border-radius: 4px;
  transition: background-color 0.1s ease;
  font-family: inherit;
}

.workspace-switcher-item:hover {
  background-color: var(--bg-tertiary);
}

.workspace-switcher-item.active {
  background-color: var(--bg-tertiary);
  font-weight: 500;
}

.workspace-switcher-item .ws-icon {
  width: 20px;
  height: 20px;
  border-radius: 4px;
  background: var(--accent-color);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.6875rem;
  font-weight: 600;
  flex-shrink: 0;
}

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

.workspace-switcher-create-form {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
}

.workspace-switcher-create-form input {
  flex: 1;
  padding: var(--space-1) var(--space-2);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  background: var(--bg-primary);
  color: var(--text-primary);
  font-size: var(--text-sm);
  font-family: inherit;
  outline: none;
}

.workspace-switcher-create-form input:focus {
  border-color: var(--accent-color);
}

.workspace-switcher-create-form button {
  padding: var(--space-1) var(--space-2);
  border: none;
  border-radius: 4px;
  background: var(--accent-color);
  color: #fff;
  font-size: var(--text-sm);
  font-family: inherit;
  cursor: pointer;
  white-space: nowrap;
}

.workspace-switcher-create-form button:hover {
  background: var(--accent-hover);
}

.workspace-switcher-create-btn {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  width: 100%;
  padding: var(--space-2) var(--space-3);
  border: none;
  background: none;
  cursor: pointer;
  font-size: var(--text-sm);
  color: var(--text-muted);
  text-align: left;
  border-radius: 4px;
  transition: background-color 0.1s ease;
  font-family: inherit;
}

.workspace-switcher-create-btn:hover {
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
}

/* ═══════════════════════════════════════════════════════════════
   Share Dialog (ON-534)
   ═══════════════════════════════════════════════════════════════ */

.share-dialog-backdrop {
  position: fixed;
  inset: 0;
  z-index: 10000;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 15vh;
}

.share-dialog {
  width: 100%;
  max-width: 480px;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  max-height: 60vh;
  display: flex;
  flex-direction: column;
  animation: modal-scale-in 0.2s ease-out forwards;
}

.share-dialog-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.875rem 1rem;
  border-bottom: 1px solid var(--border-color);
}

.share-dialog-header h3 {
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--text-primary);
  margin: 0;
}

.share-dialog-close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border: none;
  border-radius: 6px;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 1.125rem;
  transition: background-color 0.1s ease, color 0.1s ease;
}

.share-dialog-close:hover {
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
}

.share-dialog-body {
  padding: 1rem;
  overflow-y: auto;
}

.share-dialog-form {
  display: flex;
  gap: var(--space-2);
  align-items: flex-end;
  margin-bottom: 1rem;
}

.share-dialog-form .share-input-group {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.share-dialog-form label {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.share-dialog-form input {
  padding: 0.5rem 0.625rem;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  background: var(--bg-primary);
  color: var(--text-primary);
  font-size: var(--text-sm);
  font-family: inherit;
  outline: none;
  transition: border-color 0.15s;
}

.share-dialog-form input:focus {
  border-color: var(--accent-color);
}

.share-dialog-form select {
  padding: 0.5rem 0.625rem;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  background: var(--bg-primary);
  color: var(--text-primary);
  font-size: var(--text-sm);
  font-family: inherit;
  cursor: pointer;
  appearance: none;
  padding-right: 1.5rem;
  outline: none;
}

.share-dialog-form select:focus {
  border-color: var(--accent-color);
}

.share-dialog-form .btn {
  padding: 0.5rem 0.875rem;
  white-space: nowrap;
}

.share-dialog-list-header {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
}

.share-dialog-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.share-dialog-member {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2) var(--space-1);
  border-radius: 6px;
  transition: background-color 0.1s ease;
}

.share-dialog-member:hover {
  background-color: var(--bg-secondary);
}

.share-dialog-member-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--accent-color);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 600;
  flex-shrink: 0;
}

.share-dialog-member-info {
  flex: 1;
  min-width: 0;
}

.share-dialog-member-name {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-primary);
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.share-dialog-member-email {
  font-size: 0.75rem;
  color: var(--text-muted);
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.share-dialog-member select {
  padding: 0.25rem 0.4rem;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  background: var(--bg-primary);
  color: var(--text-primary);
  font-size: 0.75rem;
  font-family: inherit;
  cursor: pointer;
  outline: none;
}

.share-dialog-member .btn-remove {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border: none;
  border-radius: 4px;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 0.875rem;
  transition: background-color 0.1s ease, color 0.1s ease;
}

.share-dialog-member .btn-remove:hover {
  background-color: color-mix(in srgb, var(--danger-color) 12%, transparent);
  color: var(--danger-color);
}

.share-dialog-empty {
  font-size: var(--text-sm);
  color: var(--text-muted);
  text-align: center;
  padding: var(--space-4) 0;
}

/* Note header share button */
.note-share-btn {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  padding: 0.35rem 0.75rem;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  background: var(--bg-primary);
  color: var(--text-secondary);
  font-size: var(--text-sm);
  font-family: inherit;
  cursor: pointer;
  transition: border-color 0.15s, color 0.15s, background-color 0.15s;
  white-space: nowrap;
}

.note-share-btn:hover {
  border-color: var(--accent-color);
  color: var(--accent-color);
  background-color: color-mix(in srgb, var(--accent-color) 6%, var(--bg-primary));
}

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

/* ═══════════════════════════════════════════════════════════════
   Shared-with-me Page (ON-536)
   ═══════════════════════════════════════════════════════════════ */

.shared-page {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: var(--space-10) var(--space-6);
}

.shared-page .page-header {
  margin-bottom: var(--space-6);
}

.shared-page .page-header h1 {
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.shared-loading {
  font-size: var(--text-sm);
  color: var(--text-muted);
  padding: var(--space-4) 0;
}

.shared-note-card {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border-radius: 8px;
  cursor: pointer;
  transition: background-color 0.1s ease;
}

.shared-note-card:hover {
  background-color: var(--bg-secondary);
}

.shared-note-icon {
  font-size: var(--text-xl);
  flex-shrink: 0;
  width: 32px;
  text-align: center;
}

.shared-note-info {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.shared-note-title {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-primary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.shared-note-meta {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.shared-note-meta strong {
  color: var(--text-secondary);
  font-weight: 500;
}

.shared-note-permission-badge {
  flex-shrink: 0;
  font-size: 0.6875rem;
  font-weight: 500;
  padding: 0.15rem 0.5rem;
  border-radius: 10px;
  background-color: var(--bg-tertiary);
  color: var(--text-secondary);
  text-transform: capitalize;
}

/* ═══════════════════════════════════════════════════════════════
   Inbox Page — Workspace Invitations
   ═══════════════════════════════════════════════════════════════ */

.inbox-page {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: var(--space-10) var(--space-6);
}

.inbox-page .page-header {
  margin-bottom: var(--space-6);
}

.inbox-page .page-header h1 {
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.inbox-loading {
  font-size: var(--text-sm);
  color: var(--text-muted);
  padding: var(--space-4) 0;
}

.inbox-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-4);
  border-radius: 8px;
  border: 1px solid var(--border-color);
  margin-bottom: var(--space-3);
  background-color: var(--bg-primary);
  transition: border-color 0.15s ease;
}

.inbox-card:hover {
  border-color: var(--text-muted);
}

.inbox-card-info {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.inbox-card-workspace {
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--text-primary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.inbox-card-meta {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.inbox-card-meta strong {
  color: var(--text-secondary);
  font-weight: 500;
}

.inbox-card-role {
  padding: 0.1rem 0.4rem;
  border-radius: 4px;
  background-color: var(--bg-tertiary);
  font-weight: 500;
}

.inbox-card-actions {
  display: flex;
  gap: var(--space-2);
  flex-shrink: 0;
}

/* ═══════════════════════════════════════════════════════════════
   Workspace Settings Section (ON-535)
   ═══════════════════════════════════════════════════════════════ */

.settings-page-title {
  font-size: var(--text-2xl);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin: 0 0 var(--space-8);
}

.settings-field-value {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2) 0;
}

.settings-field-value span {
  font-size: var(--text-sm);
  color: var(--text-primary);
  font-weight: 500;
}

.settings-inline-form {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.settings-inline-form input {
  flex: 1;
  padding: 0.5rem 0.625rem;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  background: var(--bg-primary);
  color: var(--text-primary);
  font-size: var(--text-sm);
  font-family: inherit;
  outline: none;
  transition: border-color 0.15s;
}

.settings-inline-form input:focus {
  border-color: var(--accent-color);
}

.settings-section-danger {
  border-color: color-mix(in srgb, var(--danger-color) 25%, var(--border-color));
}

.settings-section-danger h2 {
  color: var(--danger-color);
}

.settings-confirm-delete {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.settings-confirm-delete p {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  margin: 0;
}

.settings-confirm-btns {
  display: flex;
  gap: var(--space-2);
}

/* Workspace members list */
.ws-members-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.ws-member-row {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2) var(--space-1);
  border-radius: 6px;
  transition: background-color 0.1s ease;
}

.ws-member-row:hover {
  background-color: var(--bg-secondary);
}

.ws-member-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--accent-color);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 600;
  flex-shrink: 0;
}

.ws-member-info {
  flex: 1;
  min-width: 0;
}

.ws-member-name {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-primary);
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.ws-member-email {
  font-size: 0.75rem;
  color: var(--text-muted);
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.ws-member-role-badge {
  font-size: 0.6875rem;
  font-weight: 500;
  padding: 0.15rem 0.5rem;
  border-radius: 10px;
  background-color: var(--bg-tertiary);
  color: var(--text-secondary);
  text-transform: capitalize;
}

.ws-member-role-select {
  padding: 0.25rem 0.4rem;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  background: var(--bg-primary);
  color: var(--text-primary);
  font-size: 0.75rem;
  font-family: inherit;
  cursor: pointer;
  outline: none;
}

.ws-member-role-select:focus {
  border-color: var(--accent-color);
}

.ws-member-remove-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border: none;
  border-radius: 4px;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 0.875rem;
  transition: background-color 0.1s ease, color 0.1s ease;
}

.ws-member-remove-btn:hover {
  background-color: color-mix(in srgb, var(--danger-color) 12%, transparent);
  color: var(--danger-color);
}

/* Workspace invite form */
.ws-invite-form {
  display: flex;
  gap: var(--space-2);
  align-items: flex-end;
}

.ws-invite-form .ws-invite-input-group {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.ws-invite-form label {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.ws-invite-form input {
  padding: 0.5rem 0.625rem;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  background: var(--bg-primary);
  color: var(--text-primary);
  font-size: var(--text-sm);
  font-family: inherit;
  outline: none;
  transition: border-color 0.15s;
}

.ws-invite-form input:focus {
  border-color: var(--accent-color);
}

.ws-invite-form select {
  padding: 0.5rem 0.625rem;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  background: var(--bg-primary);
  color: var(--text-primary);
  font-size: var(--text-sm);
  font-family: inherit;
  cursor: pointer;
  outline: none;
}

.ws-invite-form .btn {
  padding: 0.5rem 0.875rem;
  white-space: nowrap;
}

/* Sidebar "Shared with me" link */
.sidebar-shared-link {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  border-radius: 6px;
  color: var(--text-secondary);
  font-size: var(--text-sm);
  text-decoration: none;
  transition: background-color 0.1s ease, color 0.1s ease;
  cursor: pointer;
}

.sidebar-shared-link:hover {
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
}

.sidebar-shared-link svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

/* ═══════════════════════════════════════════════════════════════
   Real-time Collaboration UI (ON-421, ON-422)
   ═══════════════════════════════════════════════════════════════ */

/* Collab bar: no longer rendered in editor (moved to title row + info panel) */
.editor-collab-bar {
  display: none;
}

/* Presence bar */
.presence-bar {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.presence-avatars {
  display: flex;
  align-items: center;
}

.presence-avatar {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.6875rem;
  font-weight: 600;
  border: 2px solid var(--bg-primary);
  margin-left: -6px;
  cursor: default;
  transition: transform 0.1s ease;
}

.presence-avatar:first-child {
  margin-left: 0;
}

.presence-avatar:hover {
  transform: scale(1.15);
  z-index: 1;
}

.presence-typing {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-style: italic;
  white-space: nowrap;
}

/* Connection status indicator */
.conn-status {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  font-size: 0.6875rem;
  color: var(--text-muted);
}

.conn-status::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  flex-shrink: 0;
}

.conn-status-connected::before {
  background-color: var(--success-color, #16a34a);
}

.conn-status-connecting::before,
.conn-status-reconnecting::before {
  background-color: #f59e0b;
  animation: pulse-dot 1.5s infinite;
}

.conn-status-disconnected::before {
  background-color: var(--text-muted);
}

.conn-status-text {
  color: var(--text-muted);
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

/* ── Info Panel: People section ──────────────────────────── */

.info-people-avatars {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-1);
  padding: var(--space-1) 0;
}

.info-people-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 600;
  border: 2px solid var(--bg-primary);
  cursor: default;
  transition: transform 0.1s ease;
}

.info-people-avatar:hover {
  transform: scale(1.15);
  z-index: 1;
}

.info-people-typing {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-style: italic;
  margin-top: var(--space-1);
}

.info-people-empty {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* ── Remote Cursors (Google Docs style) ──────────────────── */

.remote-cursors-container {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  pointer-events: none;
  z-index: 50;
  overflow: hidden;
}

.remote-cursor {
  position: absolute;
  pointer-events: none;
  z-index: 50;
}

.remote-cursor-line {
  position: absolute;
  left: 0;
  top: 0;
  width: 2px;
  height: 100%;
  background-color: var(--cursor-color);
  border-radius: 1px;
  animation: cursor-blink 1.2s ease-in-out infinite;
}

.remote-cursor-label {
  position: absolute;
  left: 0;
  top: -18px;
  padding: 1px 6px;
  border-radius: 3px 3px 3px 0;
  color: #fff;
  font-size: 0.65rem;
  font-weight: 500;
  white-space: nowrap;
  line-height: 1.3;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.15);
  animation: label-appear 0.15s ease-out;
  max-width: 120px;
  overflow: hidden;
  text-overflow: ellipsis;
}

@keyframes cursor-blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

@keyframes label-appear {
  from {
    opacity: 0;
    transform: translateY(4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}