/* Noted - Modern CSS Style Sheet */

/* ==========================================================
   1. CSS Variables & Themes
   ========================================================== */

:root {
  /* Core Theme Tokens - Dark Theme (Default) */
  --bg-primary: #1f2023;
  --bg-secondary: #2d2f31;
  --bg-card: #1f2023;
  --bg-active: #3c4043;
  --border-color: #3c4043;
  
  --text-primary: #f1f3f4;
  --text-secondary: #9aa0a6;
  --text-muted: #5f6368;
  
  --accent-color: #f5b041;
  --accent-hover: #f39c12;
  --accent-light: rgba(245, 176, 65, 0.15);
  
  --danger-color: #f28b82;
  --danger-hover: #e74c3c;
  --danger-light: rgba(242, 139, 130, 0.15);
  
  --shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.6), 0 2px 6px 2px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 4px 5px 0 rgba(0, 0, 0, 0.5), 0 1px 10px 0 rgba(0, 0, 0, 0.5);
  
  /* Note Card Color Mappings - Dark Theme */
  --color-default-bg: #1f2023;
  --color-default-border: #3c4043;
  --color-default-text: #f1f3f4;
  --color-default-text-sub: #9aa0a6;
  --color-default-hover: rgba(255, 255, 255, 0.08);

  --color-blue-bg: #1e3a8a;
  --color-blue-border: #3b82f6;
  --color-blue-text: #eff6ff;
  --color-blue-text-sub: #93c5fd;
  --color-blue-hover: rgba(255, 255, 255, 0.15);

  --color-green-bg: #064e3b;
  --color-green-border: #10b981;
  --color-green-text: #ecfdf5;
  --color-green-text-sub: #a7f3d0;
  --color-green-hover: rgba(255, 255, 255, 0.15);

  --color-red-bg: #7f1d1d;
  --color-red-border: #ef4444;
  --color-red-text: #fef2f2;
  --color-red-text-sub: #fca5a5;
  --color-red-hover: rgba(255, 255, 255, 0.15);

  --color-purple-bg: #4c1d95;
  --color-purple-border: #8b5cf6;
  --color-purple-text: #f5f3ff;
  --color-purple-text-sub: #c7d2fe;
  --color-purple-hover: rgba(255, 255, 255, 0.15);

  --color-yellow-bg: #78350f;
  --color-yellow-border: #f59e0b;
  --color-yellow-text: #fffbeb;
  --color-yellow-text-sub: #fde68a;
  --color-yellow-hover: rgba(255, 255, 255, 0.15);

  --color-cyan-bg: #134e5e;
  --color-cyan-border: #06b6d4;
  --color-cyan-text: #ecfeff;
  --color-cyan-text-sub: #a5f3fc;
  --color-cyan-hover: rgba(255, 255, 255, 0.15);

  --color-pink-bg: #701a75;
  --color-pink-border: #ec4899;
  --color-pink-text: #fdf2f8;
  --color-pink-text-sub: #fbcfe8;
  --color-pink-hover: rgba(255, 255, 255, 0.15);
}

body.light-theme {
  /* Core Theme Tokens - Light Theme */
  --bg-primary: #f8fafc;
  --bg-secondary: #ffffff;
  --bg-card: #ffffff;
  --bg-active: #e2e8f0;
  --border-color: #e2e8f0;
  
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;
  
  --accent-color: #f59e0b;
  --accent-hover: #d97706;
  --accent-light: rgba(245, 158, 11, 0.1);
  
  --danger-color: #ef4444;
  --danger-hover: #dc2626;
  --danger-light: rgba(239, 68, 68, 0.1);
  
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);

  /* Note Card Color Mappings - Light Theme */
  --color-default-bg: #ffffff;
  --color-default-border: #e2e8f0;
  --color-default-text: #0f172a;
  --color-default-text-sub: #475569;
  --color-default-hover: rgba(0, 0, 0, 0.04);

  --color-blue-bg: #e0f2fe;
  --color-blue-border: #93c5fd;
  --color-blue-text: #0369a1;
  --color-blue-text-sub: #0284c7;
  --color-blue-hover: rgba(0, 0, 0, 0.05);

  --color-green-bg: #d1fae5;
  --color-green-border: #6ee7b7;
  --color-green-text: #065f46;
  --color-green-text-sub: #047857;
  --color-green-hover: rgba(0, 0, 0, 0.05);

  --color-red-bg: #ffe4e6;
  --color-red-border: #fca5a5;
  --color-red-text: #991b1b;
  --color-red-text-sub: #b91c1c;
  --color-red-hover: rgba(0, 0, 0, 0.05);

  --color-purple-bg: #f3e8ff;
  --color-purple-border: #d8b4fe;
  --color-purple-text: #6b21a8;
  --color-purple-text-sub: #7e22ce;
  --color-purple-hover: rgba(0, 0, 0, 0.05);

  --color-yellow-bg: #fef3c7;
  --color-yellow-border: #fde68a;
  --color-yellow-text: #92400e;
  --color-yellow-text-sub: #b45309;
  --color-yellow-hover: rgba(0, 0, 0, 0.05);

  --color-cyan-bg: #ccfbf1;
  --color-cyan-border: #99f6e4;
  --color-cyan-text: #075985;
  --color-cyan-text-sub: #0369a1;
  --color-cyan-hover: rgba(0, 0, 0, 0.05);

  --color-pink-bg: #fce7f3;
  --color-pink-border: #fbcfe8;
  --color-pink-text: #9d174d;
  --color-pink-text-sub: #be185d;
  --color-pink-hover: rgba(0, 0, 0, 0.05);
}

/* ==========================================================
   2. Reset & Typography
   ========================================================== */

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  scrollbar-width: thin;
  scrollbar-color: var(--border-color) transparent;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  height: 100vh;
  overflow: hidden;
  transition: background-color 0.3s, color 0.3s;
}

/* Scrollbar customization */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

/* ==========================================================
   3. App Shell Layout
   ========================================================== */

.app-shell {
  display: flex;
  flex-direction: column;
  height: 100vh;
  width: 100vw;
}

/* ==========================================================
   4. Header Layout
   ========================================================== */

.app-header {
  height: calc(64px + env(safe-area-inset-top, 0px));
  padding-top: env(safe-area-inset-top, 0px);
  padding-left: calc(24px + env(safe-area-inset-left, 0px));
  padding-right: calc(24px + env(safe-area-inset-right, 0px));
  background-color: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 10;
  box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
  transition: background-color 0.3s, border-color 0.3s, padding-top 0.2s, height 0.2s;
}

.header-left .app-logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.header-left .app-logo i,
.header-left .app-logo-icon {
  width: 1.6rem;
  height: 1.6rem;
  color: var(--accent-color);
  filter: drop-shadow(0 0 4px rgba(245, 176, 65, 0.4));
}

.custom-bulb-icon {
  width: 1em;
  height: 1em;
  fill: none;
  stroke: currentColor;
  stroke-width: 6;
  stroke-linecap: round;
  stroke-linejoin: round;
  display: inline-block;
  vertical-align: middle;
}

.header-left .app-logo h1 {
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: -0.5px;
}

.header-left .app-logo h1 span {
  color: var(--accent-color);
  font-weight: 300;
}

.header-center {
  flex: 1;
  max-width: 680px;
  margin: 0 32px;
}

.search-bar {
  display: flex;
  align-items: center;
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 0 16px;
  height: 44px;
  transition: all 0.2s ease;
}

.search-bar:focus-within {
  border-color: var(--accent-color);
  background-color: var(--bg-secondary);
  box-shadow: 0 0 0 3px var(--accent-light);
}

.search-icon {
  color: var(--text-secondary);
  margin-right: 12px;
  font-size: 1rem;
}

.search-bar input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: var(--text-primary);
  font-size: 0.95rem;
  font-weight: 400;
}

.search-bar input::placeholder {
  color: var(--text-secondary);
  opacity: 0.8;
}

.clear-search-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 4px;
  font-size: 1rem;
}

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

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

.stats-badge {
  display: flex;
  align-items: center;
  gap: 6px;
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  padding: 8px 12px;
  border-radius: 20px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  font-weight: 500;
  margin-right: 8px;
}

.stats-badge i {
  color: var(--accent-color);
}

.icon-btn {
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-secondary);
  width: 38px;
  height: 38px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  transition: all 0.2s ease;
}

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

/* ==========================================================
   5. Workspace Layout
   ========================================================== */

.workspace-container {
  flex: 1;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 32px calc(16px + env(safe-area-inset-right, 0px)) calc(32px + env(safe-area-inset-bottom, 0px)) calc(16px + env(safe-area-inset-left, 0px));
}

/* ==========================================================
   6. Creator Component (Take a Note)
   ========================================================== */

.creator-section {
  width: 100%;
  max-width: 600px;
  margin-bottom: 32px;
  position: relative;
  z-index: 5;
}

.note-creator-card {
  background-color: var(--note-bg, var(--bg-secondary));
  border: 1px solid var(--note-border, var(--border-color));
  color: var(--note-text, var(--text-primary));
  border-radius: 12px;
  box-shadow: var(--shadow);
  padding: 4px;
  transition: all 0.2s ease;
}

.note-creator-card:focus-within {
  box-shadow: var(--shadow-lg);
}

/* Collapsed Creator styling */
.creator-collapsed {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  color: var(--text-secondary);
  cursor: text;
  font-size: 0.95rem;
}

.creator-collapsed-actions {
  display: flex;
  gap: 4px;
}

.creator-type-quick-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  width: 34px;
  height: 34px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.95rem;
  transition: all 0.2s;
}

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

/* Expanded Creator Styling */
.creator-expanded {
  padding: 12px;
}

.creator-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.creator-header input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: inherit;
  font-size: 1.1rem;
  font-weight: 600;
}

.pin-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  width: 32px;
  height: 32px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  transition: all 0.2s;
}

.pin-btn:hover, .pin-btn.pinned {
  color: var(--accent-color);
  background-color: var(--bg-primary);
}

/* Tabs */
.creator-tabs, .modal-tabs {
  display: flex;
  gap: 4px;
  margin-bottom: 12px;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 8px;
}

.tab-btn, .modal-tab-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  padding: 6px 12px;
  font-size: 0.8rem;
  font-weight: 600;
  border-radius: 6px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: all 0.2s;
}

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

.tab-btn.active, .modal-tab-btn.active {
  background-color: var(--accent-light);
  color: var(--accent-color);
}

/* Creator Body */
.creator-body {
  margin-bottom: 16px;
}

.creator-body textarea, .modal-editor-body textarea {
  width: 100%;
  min-height: 120px;
  background: transparent;
  border: none;
  outline: none;
  resize: vertical;
  color: inherit;
  font-size: 0.95rem;
  line-height: 1.5;
  font-family: inherit;
}

.creator-body textarea[data-code-font="true"],
.modal-editor-body textarea[data-code-font="true"] {
  font-family: 'Fira Code', monospace;
  font-size: 0.9rem;
}

/* Creator Live Preview box */
.live-preview-container {
  border-top: 1px dashed var(--border-color);
  padding-top: 12px;
  margin-top: 12px;
  min-height: 80px;
  max-height: 250px;
  overflow-y: auto;
}

/* Footer layout */
.creator-footer, .modal-pane-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid var(--border-color);
  padding-top: 12px;
}

.creator-footer-left, .modal-footer-left {
  display: flex;
  align-items: center;
  gap: 8px;
}

.action-icon-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  width: 32px;
  height: 32px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.95rem;
  transition: all 0.2s;
}

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

.action-icon-btn.danger-hover:hover {
  background-color: var(--danger-light);
  color: var(--danger-color);
}

.creator-footer-right, .modal-footer-right {
  display: flex;
  gap: 8px;
}

.flat-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  padding: 8px 16px;
  border-radius: 6px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}

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

.primary-btn {
  background-color: var(--accent-color);
  color: #111827;
  border: none;
  padding: 8px 16px;
  border-radius: 6px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.2s, transform 0.1s;
}

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

.primary-btn:active {
  transform: scale(0.97);
}

/* ==========================================================
   7. Color Picker Component
   ========================================================== */

.color-picker-trigger {
  position: relative;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s;
}

.color-picker-trigger:hover {
  background-color: var(--bg-primary);
  color: var(--text-primary);
}

.color-palette-popover {
  display: none;
  position: absolute;
  bottom: 40px;
  left: 0;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 8px;
  grid-template-columns: repeat(4, 1fr);
  gap: 6px;
  box-shadow: var(--shadow-lg);
  z-index: 20;
}

.color-palette-popover::before {
  content: '';
  position: absolute;
  bottom: -20px;
  left: 0;
  right: 0;
  height: 20px;
  background: transparent;
}

.color-picker-trigger:hover .color-palette-popover {
  display: grid;
}

.color-dot {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background-color: var(--note-bg);
  border: 1.5px solid var(--note-border);
  cursor: pointer;
  transition: transform 0.15s;
}

.color-dot:hover {
  transform: scale(1.25);
  box-shadow: 0 0 6px var(--note-border);
}

/* ==========================================================
   8. Dashboard & Cards Layout
   ========================================================== */

.dashboard-section {
  width: 100%;
  max-width: 1600px;
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.notes-group {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.group-title {
  border-bottom: 1px solid var(--border-color);
  margin-top: 12px;
  margin-bottom: 12px;
  height: 0;
}

.notes-grid {
  display: flex;
  flex-wrap: wrap; /* Wrap columns vertically if they exceed screen width */
  gap: 16px;
  width: 100%;
  overflow-x: hidden; /* Prevent horizontal scrolling */
  padding-bottom: 12px;
}

.notes-column {
  display: flex;
  flex-direction: column;
  gap: 16px;
  flex: 1 0 280px; /* Don't shrink below content width or 280px base */
  min-width: 200px;
  width: auto;
}

/* Note Card Styling */
.note-card {
  display: flex;
  flex-direction: column;
  position: relative;
  min-width: 200px;
  min-height: 120px;
  max-height: 700px;
  width: 100%; /* Fill the column width entirely */
  border-radius: 8px;
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: box-shadow 0.2s, transform 0.15s, border-color 0.2s, background-color 0.2s;
  resize: both; /* Allow resizing natively in both directions */
  box-sizing: border-box;
  
  /* Apply custom color theme */
  background-color: var(--note-bg);
  border: 1px solid var(--note-border);
  color: var(--note-text);
}

.note-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

/* Header inside Card */
.note-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding: 12px 14px 6px 14px;
  gap: 8px;
  user-select: none;
}

.note-card-title {
  font-size: 0.95rem;
  font-weight: 600;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  flex: 1;
}

.note-card-pin {
  background: transparent;
  border: none;
  color: var(--note-text-sub);
  width: 24px;
  height: 24px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  opacity: 0;
  transition: opacity 0.2s, background-color 0.2s, color 0.2s;
}

.note-card:hover .note-card-pin {
  opacity: 1;
}

.note-card-pin:hover {
  background-color: var(--color-default-hover);
  color: var(--accent-color);
}

/* Body inside Card */
.note-card-body {
  flex: 1;
  padding: 0 14px 12px 14px;
  font-size: 0.85rem;
  line-height: 1.45;
  overflow-y: auto;
  word-break: break-word;
}

/* Footer inside Card */
.note-card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 6px 14px 10px 14px;
  font-size: 0.75rem;
  opacity: 0;
  transition: opacity 0.2s;
  user-select: none;
}

.note-card:hover .note-card-footer {
  opacity: 1;
}

.note-card-actions {
  display: flex;
  gap: 4px;
}

.note-card-action-btn {
  background: transparent;
  border: none;
  color: var(--note-text-sub);
  width: 26px;
  height: 26px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  position: relative;
  transition: background-color 0.2s, color 0.2s;
}

.note-card-action-btn:hover {
  background-color: var(--color-default-hover);
  color: var(--note-text);
}

.note-card-action-btn:hover .color-palette-popover {
  display: grid;
  bottom: 30px;
  left: -10px;
}

.note-card-badge {
  display: none;
}

/* Type specific display tweaks */
.note-card.type-javascript .note-card-body {
  font-family: inherit;
}

/* Style for actual note colors */
.color-default {
  --note-bg: var(--color-default-bg);
  --note-border: var(--color-default-border);
  --note-text: var(--color-default-text);
  --note-text-sub: var(--color-default-text-sub);
  --color-default-hover: var(--color-default-hover);
}
.color-blue {
  --note-bg: var(--color-blue-bg);
  --note-border: var(--color-blue-border);
  --note-text: var(--color-blue-text);
  --note-text-sub: var(--color-blue-text-sub);
  --color-default-hover: var(--color-blue-hover);
}
.color-green {
  --note-bg: var(--color-green-bg);
  --note-border: var(--color-green-border);
  --note-text: var(--color-green-text);
  --note-text-sub: var(--color-green-text-sub);
  --color-default-hover: var(--color-green-hover);
}
.color-red {
  --note-bg: var(--color-red-bg);
  --note-border: var(--color-red-border);
  --note-text: var(--color-red-text);
  --note-text-sub: var(--color-red-text-sub);
  --color-default-hover: var(--color-red-hover);
}
.color-purple {
  --note-bg: var(--color-purple-bg);
  --note-border: var(--color-purple-border);
  --note-text: var(--color-purple-text);
  --note-text-sub: var(--color-purple-text-sub);
  --color-default-hover: var(--color-purple-hover);
}
.color-yellow {
  --note-bg: var(--color-yellow-bg);
  --note-border: var(--color-yellow-border);
  --note-text: var(--color-yellow-text);
  --note-text-sub: var(--color-yellow-text-sub);
  --color-default-hover: var(--color-yellow-hover);
}
.color-cyan {
  --note-bg: var(--color-cyan-bg);
  --note-border: var(--color-cyan-border);
  --note-text: var(--color-cyan-text);
  --note-text-sub: var(--color-cyan-text-sub);
  --color-default-hover: var(--color-cyan-hover);
}
.color-pink {
  --note-bg: var(--color-pink-bg);
  --note-border: var(--color-pink-border);
  --note-text: var(--color-pink-text);
  --note-text-sub: var(--color-pink-text-sub);
  --color-default-hover: var(--color-pink-hover);
}

/* ==========================================================
   9. Markdown & Rendered HTML Styles (Card Contents)
   ========================================================== */

.markdown-body {
  word-wrap: break-word;
}

.markdown-body h1, .markdown-body h2, .markdown-body h3, .markdown-body h4 {
  margin-top: 10px;
  margin-bottom: 8px;
  font-weight: 600;
  line-height: 1.25;
  color: inherit;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  padding-bottom: 4px;
}

.light-theme .markdown-body h1,
.light-theme .markdown-body h2,
.light-theme .markdown-body h3,
.light-theme .markdown-body h4 {
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.markdown-body h1 { font-size: 1.2rem; }
.markdown-body h2 { font-size: 1.05rem; }
.markdown-body h3 { font-size: 0.95rem; }

.markdown-body p {
  margin-bottom: 8px;
}

.markdown-body ul, .markdown-body ol {
  padding-left: 18px;
  margin-bottom: 8px;
}

.markdown-body li {
  margin-bottom: 2px;
}

.markdown-body code {
  padding: 1px 4px;
  background-color: rgba(0, 0, 0, 0.2);
  border-radius: 4px;
  font-family: 'Fira Code', monospace;
  font-size: 0.85em;
}

.light-theme .markdown-body code {
  background-color: rgba(0, 0, 0, 0.05);
}

.markdown-body pre {
  padding: 8px;
  background-color: rgba(0, 0, 0, 0.25);
  border-radius: 6px;
  overflow-x: auto;
  margin-bottom: 8px;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.light-theme .markdown-body pre {
  background-color: rgba(0, 0, 0, 0.04);
  border: 1px solid rgba(0, 0, 0, 0.05);
}

.markdown-body pre code {
  padding: 0;
  background-color: transparent;
  font-size: 0.8em;
}

.markdown-body blockquote {
  padding: 0 12px;
  border-left: 3px solid var(--accent-color);
  margin-bottom: 8px;
  opacity: 0.8;
}

.markdown-body a {
  color: inherit;
  text-decoration: underline;
  font-weight: 500;
}

.markdown-body table {
  border-collapse: collapse;
  width: 100%;
  margin-bottom: 8px;
  font-size: 0.8rem;
}

.markdown-body th, .markdown-body td {
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 4px 6px;
}

.light-theme .markdown-body th,
.light-theme .markdown-body td {
  border: 1px solid rgba(0, 0, 0, 0.1);
}

.markdown-body th {
  background-color: rgba(0, 0, 0, 0.1);
}

/* ==========================================================
   10. Empty State & Loader
   ========================================================== */

.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 80px 20px;
  color: var(--text-muted);
  text-align: center;
}

.empty-state i,
.empty-state-icon {
  width: 4.5rem;
  height: 4.5rem;
  margin-bottom: 16px;
  opacity: 0.3;
  color: var(--text-muted);
}

.empty-state p {
  font-size: 1.1rem;
  font-weight: 500;
}

/* ==========================================================
   11. Modal Components (Edit Card Dialog)
   ========================================================== */

.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  
  /* Smooth Fade transition */
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.22s cubic-bezier(0.25, 1, 0.5, 1), visibility 0.22s;
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal-card {
  width: 100%;
  max-width: 1100px;
  height: 90vh;
  background-color: var(--note-bg);
  border: 1px solid var(--note-border);
  color: var(--note-text);
  border-radius: 12px;
  box-shadow: var(--shadow-lg);
  display: grid;
  grid-template-columns: 1fr 1fr;
  overflow: hidden;
  
  /* Default/Closing transition: clean, no bounce. Size shifts are instant when closed. */
  transform: scale(0.92) translateY(15px);
  opacity: 0;
  transition: 
    background-color 0.2s, 
    border-color 0.2s, 
    transform 0.2s cubic-bezier(0.25, 1, 0.5, 1), 
    opacity 0.2s cubic-bezier(0.25, 1, 0.5, 1);
}

.modal-overlay.active .modal-card {
  transform: scale(1) translateY(0);
  opacity: 1;
  
  /* Opening transition: snappy elastic pop. Size shifts are instant when opening. */
  transition: 
    background-color 0.2s, 
    border-color 0.2s, 
    transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1), 
    opacity 0.25s cubic-bezier(0.25, 1, 0.5, 1);
}

/* Enable size transitions only after opening animation is complete (for tab-switching morph) */
.modal-card.resize-transition {
  transition: 
    background-color 0.2s, 
    border-color 0.2s, 
    transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1), 
    opacity 0.25s cubic-bezier(0.25, 1, 0.5, 1), 
    max-width 0.3s cubic-bezier(0.25, 1, 0.5, 1), 
    height 0.3s cubic-bezier(0.25, 1, 0.5, 1), 
    max-height 0.3s cubic-bezier(0.25, 1, 0.5, 1);
}

/* Standard layout for plain text notes */
.modal-card.single-pane {
  grid-template-columns: 1fr;
  max-width: 600px;
  height: auto;
  max-height: 85vh;
  margin: auto;
  align-self: center;
}

.modal-card.single-pane .modal-preview-pane {
  display: none !important;
}

.modal-card.single-pane .modal-editor-pane {
  border-right: none;
  height: auto;
  max-height: 85vh;
}

.modal-card.single-pane .modal-editor-body {
  flex: 0 1 auto;
  height: auto;
  min-height: 150px;
  max-height: calc(85vh - 180px);
  overflow: hidden;
}

.modal-card.single-pane .modal-editor-body .CodeMirror {
  height: auto !important;
  min-height: 150px;
}

.modal-card.single-pane .modal-editor-body .CodeMirror-scroll {
  height: auto !important;
  min-height: 150px;
  max-height: calc(85vh - 180px);
  overflow-y: auto !important;
  overflow-x: hidden !important;
}

/* Left Pane: Editor */
.modal-editor-pane {
  display: flex;
  flex-direction: column;
  padding: 24px;
  border-right: 1px solid var(--border-color);
  min-height: 0;
  height: 100%;
  overflow: hidden;
}

.modal-pane-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.modal-pane-header input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: inherit;
  font-size: 1.3rem;
  font-weight: 600;
}

.modal-editor-body {
  flex: 1;
  display: flex;
  flex-direction: column;
  margin-bottom: 16px;
  min-height: 0;
  overflow: hidden;
}

.modal-editor-body textarea {
  flex: 1;
  resize: none;
  height: 100%;
  min-height: 100%;
  border: none;
  background: transparent;
  outline: none;
  color: inherit;
  line-height: 1.6;
}

/* Right Pane: Preview */
.modal-preview-pane {
  display: flex;
  flex-direction: column;
  padding: 24px;
  background-color: rgba(0, 0, 0, 0.1);
  overflow: hidden;
  min-height: 0;
  height: 100%;
}

.modal-preview-pane h3 {
  font-size: 0.95rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--note-text-sub);
  letter-spacing: 0.5px;
}

.preview-type-badge {
  background-color: var(--accent-color);
  color: #111827;
  padding: 4px 8px;
  border-radius: 4px;
  font-size: 0.7rem;
  font-weight: 700;
}

.modal-preview-content {
  flex: 1;
  overflow-y: auto;
  padding: 16px 0;
  line-height: 1.5;
}

/* Widget error message */
.widget-error {
  background-color: rgba(239, 68, 68, 0.15);
  border: 1px solid var(--danger-color);
  color: #fca5a5;
  padding: 12px;
  border-radius: 6px;
  font-family: 'Fira Code', monospace;
  font-size: 0.8rem;
  margin: 10px 0;
}

.light-theme .widget-error {
  color: #991b1b;
  background-color: #ffe4e6;
}

.widget-error pre {
  margin-top: 6px;
  white-space: pre-wrap;
  overflow-x: auto;
}

/* ==========================================================
   12. Mobile Responsive Styling
   ========================================================== */

@media (max-width: 900px) {
  .modal-card {
    grid-template-columns: 1fr;
    height: 95vh;
  }
  
  .modal-preview-pane {
    display: none; /* Hide preview on small screens, can edit tab-based toggle if needed */
  }
  
  .modal-editor-pane {
    border-right: none;
  }
  
  .app-header {
    padding-left: calc(16px + env(safe-area-inset-left, 0px));
    padding-right: calc(16px + env(safe-area-inset-right, 0px));
  }
  
  .header-center {
    margin: 0 12px;
  }
}

@media (max-width: 600px) {
  .header-left .app-logo {
    gap: 6px;
  }
  
  .header-left h1 {
    font-size: 1.15rem;
  }
  
  .header-left h1 span {
    display: inline;
  }
  
  .header-center {
    margin: 0 8px;
  }
  
  .search-bar {
    padding: 0 10px;
    height: 36px;
  }
  
  .search-bar input {
    font-size: 0.85rem;
  }
  
  .search-icon {
    margin-right: 6px;
    font-size: 0.9rem;
  }
  
  .stats-badge {
    display: none;
  }
  
  #export-all-btn, 
  #import-all-btn {
    display: none;
  }
  
  .notes-grid {
    flex-direction: column;
  }
  
  .note-card {
    width: 100% !important;
    max-width: 100%;
    resize: none !important; /* Disable manual resize on small screens */
  }
}

/* Drag & Drop Visual Classes (iOS-style pointer drag) */

/* Show grab cursor only on note card headers to hint draggability */
.note-card {
  cursor: default;
}
.note-card-header {
  cursor: grab;
}
.note-card-header:active {
  cursor: grabbing;
}

/* Source card is hidden during drag — handled via JS display:none */

/* Ghost card (fixed clone following cursor) */
#drag-ghost {
  cursor: grabbing !important;
  border-radius: 10px !important;
}

/* Placeholder slot — dashed outline showing where card will land */
#drag-placeholder {
  pointer-events: none;
  display: block;
  box-sizing: border-box;
  animation: placeholder-pulse 1.2s ease-in-out infinite;
}

@keyframes placeholder-pulse {
  0%, 100% { opacity: 0.45; }
  50%       { opacity: 0.75; }
}

/* Prevent text selection and set cursor globally while dragging */
body.is-dragging,
body.is-dragging * {
  user-select: none !important;
  cursor: grabbing !important;
}

body.is-dragging .note-card:not(#drag-ghost) {
  pointer-events: none !important;
}

body.is-dragging .creator-section,
body.is-dragging .sidebar,
body.is-dragging header {
  pointer-events: none !important;
}

/* ==========================================================
   10. File & Image Attachments Layout
   ========================================================== */

.attachments-preview-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
  gap: 10px;
  margin-top: 8px;
  margin-bottom: 12px;
  width: 100%;
}

.attachment-preview-item {
  position: relative;
  aspect-ratio: 1;
  border-radius: 6px;
  border: 1px solid var(--border-color);
  background-color: rgba(0, 0, 0, 0.2);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.attachment-preview-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.attachment-file-icon {
  font-size: 1.5rem;
  color: var(--text-secondary);
  margin-bottom: 4px;
}

.attachment-file-name {
  font-size: 0.65rem;
  color: var(--text-secondary);
  text-align: center;
  padding: 0 4px;
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.remove-attachment-btn {
  position: absolute;
  top: 4px;
  right: 4px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: none;
  background-color: rgba(0, 0, 0, 0.7);
  color: #fff;
  font-size: 10px;
  line-height: 18px;
  text-align: center;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  transition: background-color 0.15s;
}

.remove-attachment-btn:hover {
  background-color: var(--danger-color);
}

/* Card Image Attachments */
.card-image-attachments {
  width: 100%;
  display: grid;
  gap: 2px;
  border-bottom: 1px solid var(--note-border);
  overflow: hidden;
}

.card-image-attachments.grid-1 {
  grid-template-columns: 1fr;
}

.card-image-attachments.grid-2 {
  grid-template-columns: 1fr 1fr;
}

.card-image-attachments.grid-3 {
  grid-template-columns: 2fr 1fr;
  grid-template-rows: 1fr 1fr;
}

.card-image-attachments.grid-3 img:first-child {
  grid-row: span 2;
  height: 100%;
}

.card-attachment-img {
  width: 100%;
  height: 140px;
  object-fit: cover;
}

.card-image-attachments.grid-1 .card-attachment-img {
  height: auto;
  max-height: 240px;
  object-fit: contain;
  background-color: rgba(0, 0, 0, 0.15);
}

/* File attachments inside card */
.card-file-attachments {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 0 14px 10px 14px;
}

.card-file-attachment-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 8px;
  border-radius: 4px;
  background-color: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: var(--note-text);
  font-size: 0.7rem;
  text-decoration: none;
  max-width: 180px;
  transition: background-color 0.15s;
}

.card-file-attachment-badge span {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.card-file-attachment-badge:hover {
  background-color: rgba(255, 255, 255, 0.15);
}

/* ==========================================================
   Code Editor with Syntax Highlighting Overlay
   ========================================================== */
.editor-container {
  position: relative;
  width: 100%;
}

.modal-editor-body .editor-container {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 0;
}

.editor-grid-wrapper {
  position: relative;
  display: grid;
  width: 100%;
  height: 100%;
  min-height: inherit;
}

/* ==========================================================
   CodeMirror Code Editor Integration
   ========================================================== */
.CodeMirror {
  font-family: inherit;
  font-size: 0.95rem;
  line-height: 1.6;
  height: auto;
  min-height: 120px;
  background: transparent !important;
  color: inherit !important;
  border: none;
  padding: 0;
}

/* Note Creator CodeMirror Styling */
.creator-body .CodeMirror {
  height: auto !important;
  min-height: 120px;
  resize: vertical;
  overflow: auto !important;
}

/* Edit Modal CodeMirror Styling */
.modal-editor-body {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 0;
  overflow: hidden;
}

.modal-editor-body .CodeMirror {
  flex: 1;
  display: flex;
  flex-direction: column;
  height: 100% !important;
  min-height: 0;
}

.modal-editor-body .CodeMirror-scroll {
  flex: 1;
  height: 100% !important;
  min-height: 0;
  overflow-y: auto !important;
  overflow-x: hidden !important;
}

/* Monospace font for code notes */
.CodeMirror[data-code-font="true"] .CodeMirror-code {
  font-family: 'Fira Code', monospace !important;
  font-size: 0.9rem !important;
}

/* Custom Cursor & Selection Styles */
.CodeMirror-cursor {
  border-left: 2px solid var(--text-primary) !important;
}

.CodeMirror-selected {
  background: rgba(255, 255, 255, 0.15) !important;
}

.CodeMirror-focused .CodeMirror-selected {
  background: rgba(255, 255, 255, 0.22) !important;
}

/* Placeholder element styling */
.CodeMirror-placeholder {
  color: rgba(255, 255, 255, 0.4) !important;
}

/* CodeMirror theme matching colors */
.cm-s-material-darker .cm-comment { color: #546e7a !important; font-style: italic; }
.cm-s-material-darker .cm-keyword { color: #c792ea !important; font-weight: 600; }
.cm-s-material-darker .cm-number { color: #f78c6c !important; }
.cm-s-material-darker .cm-string { color: #c3e88d !important; }
.cm-s-material-darker .cm-variable { color: #eeffff !important; }
.cm-s-material-darker .cm-variable-2 { color: #80cbc4 !important; }
.cm-s-material-darker .cm-variable-3 { color: #f07178 !important; }
.cm-s-material-darker .cm-def { color: #82aaff !important; }
.cm-s-material-darker .cm-operator { color: #89ddff !important; }
.cm-s-material-darker .cm-property { color: #c792ea !important; }
.cm-s-material-darker .cm-atom { color: #f78c6c !important; }
.cm-s-material-darker .cm-tag { color: #f07178 !important; }
.cm-s-material-darker .cm-attribute { color: #ffcb6b !important; }
.cm-s-material-darker .cm-meta { color: #ffcb6b !important; }
.cm-s-material-darker .cm-string-2 { color: #f07178 !important; }
.cm-s-material-darker .cm-qualifier { color: #decb6b !important; }
.cm-s-material-darker .cm-builtin { color: #82aaff !important; }

/* Markdown specific colors inside CodeMirror */
.cm-s-material-darker .cm-header { color: #82aaff !important; font-weight: 600; }
.cm-s-material-darker .cm-strong { font-weight: bold; color: #ffcb6b !important; }
.cm-s-material-darker .cm-em { font-style: italic; color: #c792ea !important; }
.cm-s-material-darker .cm-link { color: #80cbc4 !important; text-decoration: underline; }
.cm-s-material-darker .cm-url { color: #80cbc4 !important; }

/* ==========================================================
   9. Navigation & Trash Styling
   ========================================================== */

.icon-btn.active {
  color: var(--accent-color) !important;
  background-color: var(--bg-active);
  border-color: var(--border-color);
  box-shadow: 0 0 6px var(--accent-light);
}

.trash-banner {
  display: flex;
  align-items: center;
  gap: 12px;
  background-color: var(--danger-light);
  border: 1px solid var(--danger-color);
  color: var(--danger-color);
  padding: 12px 20px;
  border-radius: 8px;
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  user-select: none;
  width: 100%;
}

.trash-banner strong {
  text-decoration: underline;
}

.trash-banner i {
  font-size: 1.1rem;
  transition: transform 0.2s ease;
}

.trash-banner:hover {
  background-color: var(--danger-color);
  color: #ffffff;
  box-shadow: 0 2px 8px rgba(242, 139, 130, 0.4);
}

.trash-banner:hover i {
  transform: translateX(-4px);
}

body.light-theme .trash-banner:hover {
  background-color: var(--danger-hover);
  color: #ffffff;
  box-shadow: 0 2px 8px rgba(239, 68, 68, 0.3);
}

.trash-banner:active {
  transform: scale(0.99);
}

.trash-section {
  width: 100%;
  max-width: 1600px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.trash-header-actions {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 12px;
  margin-bottom: 8px;
}

.danger-btn {
  background-color: var(--danger-light);
  border: 1px solid var(--danger-color);
  color: var(--danger-color);
  padding: 8px 16px;
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: 8px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: all 0.2s ease;
}

.danger-btn:hover {
  background-color: var(--danger-color);
  color: #ffffff;
  box-shadow: 0 2px 8px rgba(242, 139, 130, 0.4);
}

body.light-theme .danger-btn:hover {
  color: #ffffff;
  background-color: var(--danger-hover);
  box-shadow: 0 2px 8px rgba(239, 68, 68, 0.3);
}

.danger-btn:active {
  transform: scale(0.98);
}

/* ==========================================================
   10. Custom Confirm Dialog Modal
   ========================================================== */

.confirm-modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2000;
  opacity: 0;
  transition: opacity 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.confirm-modal-overlay.active {
  opacity: 1;
}

.confirm-modal-card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 24px;
  width: 90%;
  max-width: 400px;
  box-shadow: var(--shadow-lg);
  transform: scale(0.9) translateY(10px);
  transition: transform 0.2s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.confirm-modal-card.active {
  transform: scale(1) translateY(0);
}

.confirm-modal-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-top: 0;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.confirm-modal-message {
  font-size: 0.95rem;
  line-height: 1.55;
  color: var(--text-secondary);
  margin-bottom: 24px;
}

.confirm-modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
}

/* Red styling for dangerous primary buttons */
.primary-btn.danger-theme {
  background-color: var(--danger-color);
  color: #111827;
}

.primary-btn.danger-theme:hover {
  background-color: var(--danger-hover);
}

body.light-theme .primary-btn.danger-theme {
  color: #ffffff;
  background-color: var(--danger-color);
}

body.light-theme .primary-btn.danger-theme:hover {
  background-color: var(--danger-hover);
}

.plaintext-body {
  white-space: pre-wrap;
  font-family: inherit;
  font-size: 0.95rem;
  line-height: 1.6;
  margin: 0;
  color: inherit;
  background-color: transparent !important;
  border: none !important;
  padding: 0 !important;
  border-radius: 0 !important;
  overflow-x: visible !important;
}

/* ==========================================================
   11. Edit Modal Type Switch Banner
   ========================================================== */

.type-switch-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  background-color: var(--accent-light);
  border: 1px solid var(--accent-color);
  color: var(--text-primary);
  padding: 8px 16px;
  border-radius: 8px;
  margin: 12px 16px 0 16px;
  font-size: 0.85rem;
}

.type-switch-banner span strong {
  text-transform: capitalize;
}

.type-switch-action-btn {
  padding: 6px 12px !important;
  font-size: 0.8rem !important;
  font-weight: 700 !important;
  background-color: var(--accent-color) !important;
  color: #111827 !important;
  border-radius: 4px !important;
  cursor: pointer;
  border: none;
  transition: all 0.2s ease;
}

.type-switch-action-btn:hover {
  background-color: var(--accent-hover) !important;
}

body.light-theme .type-switch-action-btn {
  color: #ffffff !important;
  background-color: var(--accent-hover) !important;
}

.plaintext-link {
  text-decoration: underline;
  color: var(--accent-color);
  font-weight: 500;
  cursor: pointer;
  transition: opacity 0.2s ease;
}

.plaintext-link:hover {
  opacity: 0.8;
}

.codemirror-hidden {
  display: none !important;
}

/* Creator Dropdown Menu */
.creator-dropdown-container {
  position: relative;
  display: inline-block;
}

.creator-dropdown-trigger {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  width: 34px;
  height: 34px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.95rem;
  transition: background-color 0.2s, color 0.2s;
}

.creator-dropdown-trigger:hover {
  background-color: var(--border-color);
  color: var(--text-primary);
}

.creator-dropdown-menu {
  display: none;
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  background-color: var(--note-bg, var(--bg-secondary));
  border: 1px solid var(--note-border, var(--border-color));
  box-shadow: var(--shadow-lg);
  border-radius: 8px;
  z-index: 100;
  min-width: 160px;
  overflow: hidden;
  animation: dropdownFade 0.15s ease-out;
}

.creator-dropdown-menu.show {
  display: block;
}

.creator-dropdown-item {
  padding: 10px 14px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  cursor: pointer;
  transition: background-color 0.2s, color 0.2s;
}

.creator-dropdown-item:hover {
  background-color: var(--border-color);
  color: var(--text-primary);
}

.creator-dropdown-item i {
  width: 16px;
  text-align: center;
  opacity: 0.8;
}

@keyframes dropdownFade {
  from {
    opacity: 0;
    transform: translateY(-5px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ==========================================================
   13. Agent Sidebar UI
   ========================================================== */

.agent-sidebar {
  position: fixed;
  top: calc(64px + env(safe-area-inset-top, 0px));
  right: -360px; /* Hidden by default */
  width: 350px;
  height: calc(100vh - (64px + env(safe-area-inset-top, 0px)));
  background-color: var(--bg-secondary);
  border-left: 1px solid var(--border-color);
  box-shadow: -4px 0 20px rgba(0, 0, 0, 0.4);
  display: flex;
  flex-direction: column;
  transition: right 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  z-index: 100;
}

.agent-sidebar.open {
  right: 0;
}

/* Push workspace container to the left when sidebar is open on desktop */
@media (min-width: 1200px) {
  body.agent-sidebar-active .workspace-container {
    padding-right: 366px; /* 350px width + 16px extra gap */
    transition: padding-right 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  }
  .workspace-container {
    transition: padding-right 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  }
}

.sidebar-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-color);
}

.sidebar-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.1rem;
}

.sidebar-title i {
  color: var(--accent-color);
  font-size: 1.25rem;
}

.sidebar-title h2 {
  font-size: 1.15rem;
  font-weight: 700;
}

.sidebar-title h2 span {
  color: var(--accent-color);
}

.sidebar-chat-history {
  flex: 1;
  overflow-y: auto;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.chat-message {
  padding: 12px 14px;
  border-radius: 12px;
  font-size: 0.88rem;
  line-height: 1.45;
  max-width: 85%;
  word-wrap: break-word;
}

.chat-message p {
  margin-bottom: 8px;
}
.chat-message p:last-child {
  margin-bottom: 0;
}

.chat-message ul,
.chat-message ol {
  padding-left: 20px;
  margin-top: 6px;
}

.chat-message li {
  margin-bottom: 4px;
}

.chat-message.system-msg {
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  align-self: flex-start;
  border-bottom-left-radius: 2px;
}

.chat-message.user-msg {
  background-color: var(--accent-light);
  border: 1px solid rgba(245, 176, 65, 0.3);
  color: var(--text-primary);
  align-self: flex-end;
  border-bottom-right-radius: 2px;
}

.chat-message.error-msg {
  background-color: var(--danger-light);
  border: 1px solid rgba(242, 139, 130, 0.3);
  color: var(--danger-color);
  align-self: flex-start;
  border-bottom-left-radius: 2px;
}

.chat-message.loading-msg {
  background-color: var(--bg-primary);
  border: 1px dashed var(--border-color);
  color: var(--text-secondary);
  align-self: flex-start;
  border-bottom-left-radius: 2px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.chat-message.loading-msg i {
  animation: spin 1.2s linear infinite;
  color: var(--accent-color);
}

.sidebar-input-container {
  padding: 16px 20px calc(16px + env(safe-area-inset-bottom, 0px)) 20px;
  border-top: 1px solid var(--border-color);
  display: flex;
  gap: 10px;
  background-color: var(--bg-secondary);
}

#sidebar-chat-input {
  flex: 1;
  height: 40px;
  min-height: 40px;
  max-height: 120px;
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 8px 12px;
  line-height: 1.4;
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.88rem;
  resize: none;
  outline: none;
  transition: border-color 0.2s;
}

#sidebar-chat-input:focus {
  border-color: var(--accent-color);
}

.send-btn {
  width: 40px;
  height: 40px;
  background-color: var(--accent-color);
  border: none;
  border-radius: 8px;
  color: #111;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.2s, transform 0.1s;
}

.send-btn:hover {
  opacity: 0.9;
}

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

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* Make nav-agent-btn blue or amber when active */
#nav-agent-btn.active {
  color: var(--accent-color);
  background-color: var(--accent-light);
}

/* ==========================================================
   6. Version History & Toast Notifications
   ========================================================== */


/* Version History Popover */
.history-popover {
  position: absolute;
  bottom: 65px;
  left: 20px;
  width: 290px;
  max-height: 250px;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  box-shadow: var(--shadow-lg);
  z-index: 100;
  display: flex;
  flex-direction: column;
}

.history-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 12px;
  border-bottom: 1px solid var(--border-color);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-primary);
}

.history-list {
  flex: 1;
  overflow-y: auto;
  padding: 8px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.history-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px;
  background-color: rgba(255, 255, 255, 0.03);
  border-radius: 4px;
  font-size: 0.75rem;
  border: 1px solid var(--border-color);
}

.history-item-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.history-item-time {
  color: var(--text-primary);
  font-weight: 500;
}

.history-item-type {
  font-size: 0.65rem;
  color: var(--accent-color);
  text-transform: uppercase;
}

.history-restore-btn {
  background: var(--accent-color);
  color: #111;
  border: none;
  border-radius: 4px;
  padding: 4px 8px;
  font-weight: bold;
  cursor: pointer;
  font-size: 0.7rem;
  transition: opacity 0.2s;
}

.history-restore-btn:hover {
  opacity: 0.9;
}

.history-empty {
  color: var(--text-muted);
  text-align: center;
  font-style: italic;
  padding: 15px 0;
  font-size: 0.75rem;
}

/* Toast Notifications */
.toast-container {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 10000;
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-width: 320px;
}

.toast-notification {
  background-color: var(--bg-secondary);
  border-left: 4px solid var(--accent-color);
  border-right: 1px solid var(--border-color);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  border-radius: 4px;
  padding: 10px 14px;
  box-shadow: var(--shadow-lg);
  color: var(--text-primary);
  font-family: inherit;
  opacity: 0;
  transform: translateX(100%);
  transition: opacity 0.3s, transform 0.3s;
}

.toast-notification.show {
  opacity: 1;
  transform: translateX(0);
}

.toast-title {
  font-size: 0.85rem;
  font-weight: bold;
  margin-bottom: 4px;
  color: var(--accent-color);
}

.toast-body {
  font-size: 0.78rem;
  line-height: 1.35;
  color: var(--text-secondary);
}

/* Authentication Screen CSS */
.auth-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: var(--bg-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
}

.auth-card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 40px;
  width: 90%;
  max-width: 400px;
  text-align: center;
  box-shadow: var(--shadow-lg);
}

.auth-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-bottom: 12px;
}

.auth-logo svg {
  width: 3.2rem;
  height: 3.2rem;
  color: var(--accent-color);
  filter: drop-shadow(0 0 8px rgba(245, 176, 65, 0.4));
}

.auth-logo h1 {
  font-size: 2.2rem;
  font-weight: 700;
  margin: 0;
  letter-spacing: -0.5px;
}

.auth-logo h1 span {
  color: var(--accent-color);
  font-weight: 300;
}

.auth-subtitle {
  color: var(--text-secondary);
  margin-top: 0;
  margin-bottom: 32px;
  font-size: 0.95rem;
}

.auth-buttons {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.auth-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 14px;
  border-radius: 8px;
  border: none;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.2s, transform 0.1s;
}

.auth-btn:active {
  transform: scale(0.98);
}

.github-btn {
  background-color: #24292e;
  color: #ffffff;
}

.github-btn:hover {
  background-color: #1b1f23;
}

.google-btn {
  background-color: #ffffff;
  color: #3c4043;
  border: 1px solid #dadce0;
}

.google-btn:hover {
  background-color: #f8f9fa;
}