/* 
==================================================
  BCFSleuth - Complete Stylesheet
  Modern BCF File Analyzer Interface
==================================================
*/

/* 
==================================================
  1. CSS CUSTOM PROPERTIES (DESIGN TOKENS)
==================================================
*/
:root {
  /* Primary Color Palette */
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --secondary: #64748b;
  --secondary-hover: #475569;
  --accent: #0ea5e9;

  /* Status Colors */
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  --info: #3b82f6;

  /* Neutral Gray Scale */
  --gray-50: #f8fafc;
  --gray-100: #f1f5f9;
  --gray-200: #e2e8f0;
  --gray-300: #cbd5e1;
  --gray-400: #94a3b8;
  --gray-500: #64748b;
  --gray-600: #475569;
  --gray-700: #334155;
  --gray-800: #1e293b;
  --gray-900: #0f172a;

  /* Background & Text Colors */
  --bg-primary: #ffffff;
  --bg-secondary: #f8fafc;
  --bg-tertiary: #f1f5f9;
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;

  /* Shadow System */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1),
    0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1),
    0 8px 10px -6px rgb(0 0 0 / 0.1);

  /* Border Radius Scale */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;

  /* Spacing Scale */
  --space-xs: 0.5rem;
  --space-sm: 0.75rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;

  /* Typography */
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto,
    'Helvetica Neue', Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, 'SF Mono', Consolas,
    'Liberation Mono', Menlo, monospace;
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
  :root {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
  }
}

/* 
==================================================
  2. RESET & BASE STYLES
==================================================
*/
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: var(--font-sans);
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-secondary);
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Container System */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

/* 
==================================================
  3. HEADER & NAVIGATION
==================================================
*/
header {
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  color: white;
  padding: var(--space-2xl) 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

header::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Ccircle cx='30' cy='30' r='4'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E")
    repeat;
  z-index: 1;
}

header .container {
  position: relative;
  z-index: 2;
}

header h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 700;
  margin-bottom: var(--space-sm);
  letter-spacing: -0.025em;
}

.tagline {
  font-size: 1.25rem;
  opacity: 0.9;
  font-weight: 400;
  letter-spacing: 0.025em;
}

/* 
==================================================
  4. MAIN LAYOUT & CARDS
==================================================
*/
main {
  padding: var(--space-2xl) 0;
  min-height: 60vh;
}

.card {
  background: var(--bg-primary);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  padding: var(--space-2xl);
  margin-bottom: var(--space-xl);
  border: 1px solid var(--gray-200);
  transition: all 0.2s ease-in-out;
}

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

/* 
==================================================
  5. BUTTON SYSTEM
==================================================
*/
.btn {
  padding: var(--space-sm) var(--space-lg);
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  font-size: 1rem;
  font-weight: 500;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  min-height: 44px;
  border: 1px solid transparent;
}

/* Button Variants */
.btn-primary {
  background-color: var(--primary);
  color: white;
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover:not(:disabled) {
  background-color: var(--primary-hover);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.btn-secondary {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  border-color: var(--gray-300);
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover:not(:disabled) {
  background-color: var(--gray-50);
  border-color: var(--gray-400);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

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

.btn-warning:hover:not(:disabled) {
  background-color: #d97706;
  border-color: #d97706;
}

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

.btn-danger:hover:not(:disabled) {
  background-color: #dc2626;
  border-color: #dc2626;
}

/* Button Sizes */
.btn-sm {
  padding: var(--space-xs) var(--space-sm);
  font-size: 0.75rem;
  min-height: 32px;
  border-radius: var(--radius-sm);
}

/* Button States */
.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.btn:focus {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

/* Control Buttons */
.control-btn {
  padding: var(--space-xs) var(--space-sm);
  border: 1px solid var(--gray-300);
  background: var(--bg-primary);
  color: var(--text-primary);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 0.75rem;
  font-weight: 500;
  transition: all 0.2s ease;
  margin-left: var(--space-xs);
}

.control-btn:first-of-type {
  margin-left: 0;
}

.control-btn:hover {
  background: var(--gray-50);
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-1px);
}

.control-btn:active {
  transform: translateY(0);
  box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.1);
}

.control-btn:focus {
  outline: 2px solid var(--primary);
  outline-offset: 1px;
}

/* 
==================================================
  6. FILE UPLOAD & DROP ZONE
==================================================
*/
.drop-zone {
  border: 2px dashed var(--gray-300);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  text-align: center;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: pointer;
  position: relative;
  background: var(--bg-tertiary);
  min-height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.drop-zone:hover,
.drop-zone.drag-over {
  border-color: var(--primary);
  background: linear-gradient(135deg, var(--primary) / 5, var(--accent) / 5);
  transform: scale(1.02);
}

.drop-zone-content {
  pointer-events: none;
}

.upload-icon {
  font-size: 3rem;
  margin-bottom: var(--space-md);
  opacity: 0.7;
}

.drop-zone h3 {
  margin-bottom: var(--space-sm);
  color: var(--text-primary);
  font-size: 1.5rem;
  font-weight: 600;
}

.drop-zone p {
  color: var(--text-muted);
  margin-bottom: var(--space-md);
  font-size: 1.1rem;
}

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

/* File List */
.file-list {
  margin-top: var(--space-xl);
  padding-top: var(--space-xl);
  border-top: 1px solid var(--gray-200);
}

.file-list h4 {
  margin-bottom: var(--space-md);
  color: var(--text-primary);
  font-size: 1.25rem;
  font-weight: 600;
}

#selected-files {
  list-style: none;
  margin-bottom: var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

#selected-files li {
  padding: var(--space-md);
  background: var(--bg-tertiary);
  border-radius: var(--radius-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
  border: 1px solid var(--gray-200);
  transition: all 0.2s ease;
}

#selected-files li:hover {
  background: var(--gray-100);
  border-color: var(--primary);
}

.file-size {
  color: var(--text-muted);
  font-size: 0.875rem;
  font-family: var(--font-mono);
}

/* 
==================================================
  7. PROCESSING STATUS & LOADING
==================================================
*/
#processing-status {
  text-align: center;
  padding: var(--space-2xl);
}

.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--gray-200);
  border-top: 3px solid var(--primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin: 0 auto var(--space-md) auto;
}

@keyframes spin {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

#status-text {
  color: var(--text-secondary);
  font-size: 1.125rem;
}

/* 
==================================================
  8. RESULTS & INFO DISPLAY
==================================================
*/
.info-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
}

.info-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-md);
  background: var(--bg-tertiary);
  border-radius: var(--radius-md);
  border: 1px solid var(--gray-200);
  transition: all 0.2s ease;
}

.info-item:hover {
  background: var(--gray-100);
  border-color: var(--primary);
}

.info-item label {
  font-weight: 600;
  color: var(--text-secondary);
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.info-item span {
  color: var(--text-primary);
  font-weight: 600;
  font-size: 1.125rem;
}

/* 
==================================================
  9. TAB SYSTEM
==================================================
*/
.preview-tabs {
  display: flex;
  margin-bottom: var(--space-lg);
  border-bottom: 1px solid var(--gray-200);
}

.tab-button {
  padding: var(--space-md) var(--space-lg);
  border: none;
  background: none;
  cursor: pointer;
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-muted);
  border-bottom: 2px solid transparent;
  transition: all 0.2s ease;
}

.tab-button.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
}

.tab-button:hover {
  color: var(--primary-hover);
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
}

/* 
==================================================
  10. DATA PREVIEW & SIMPLE TABLE
==================================================
*/
.data-preview {
  margin: var(--space-xl) 0;
}

.data-preview h4 {
  margin-bottom: var(--space-md);
  color: var(--text-primary);
  font-size: 1.25rem;
  font-weight: 600;
}

.simple-preview {
  background: var(--bg-tertiary);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
}

.preview-summary {
  margin-top: var(--space-md);
  padding-top: var(--space-md);
  border-top: 1px solid var(--gray-200);
  color: var(--text-muted);
  font-style: italic;
  font-size: 0.875rem;
}

.table-container {
  overflow-x: auto;
  margin: var(--space-md) 0;
  border-radius: var(--radius-lg);
  border: 1px solid var(--gray-200);
  -webkit-overflow-scrolling: touch;
}

/* Basic Table Styles */
table {
  width: 100%;
  min-width: 600px;
  border-collapse: collapse;
  background: var(--bg-primary);
}

th {
  padding: var(--space-md);
  text-align: left;
  background-color: var(--bg-tertiary);
  font-weight: 600;
  color: var(--text-secondary);
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-bottom: 1px solid var(--gray-200);
}

td {
  padding: var(--space-md);
  text-align: left;
  border-bottom: 1px solid var(--gray-100);
  color: var(--text-primary);
}

tr:hover {
  background-color: var(--gray-50);
}

tr:last-child td {
  border-bottom: none;
}

/* 
==================================================
  11. ADVANCED PREVIEW & FILTERING
==================================================
*/

/* Data Summary Stats */
.data-summary {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
  padding: var(--space-lg);
  background: var(--bg-tertiary);
  border-radius: var(--radius-lg);
}

.summary-item {
  text-align: center;
}

.summary-value {
  display: block;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: var(--space-xs);
}

.summary-label {
  font-size: 0.875rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* Preview Notice */
.preview-notice {
  margin-bottom: var(--space-lg);
  background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
  border: 1px solid #0ea5e9;
  border-radius: var(--radius-lg);
  padding: var(--space-md);
}

.notice-content {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.notice-icon {
  font-size: 1.25rem;
  flex-shrink: 0;
}

.notice-text {
  color: var(--text-primary);
  font-size: 0.875rem;
  line-height: 1.5;
}

.notice-text strong {
  color: var(--primary);
}

.notice-text a {
  color: var(--primary);
  text-decoration: underline;
  font-weight: 500;
  cursor: pointer;
}

.notice-text a:hover {
  color: var(--primary-hover);
}

/* Advanced Controls */
.advanced-controls {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
  padding: var(--space-lg);
  background: var(--bg-tertiary);
  border-radius: var(--radius-lg);
  align-items: center;
}

.control-group {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

.control-group:has(.control-btn) {
  background: var(--bg-primary);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-md);
  border: 1px solid var(--gray-200);
}

.control-group:has(.control-btn) label {
  font-weight: 600;
  color: var(--text-primary);
}

.control-group label {
  font-weight: 500;
  color: var(--text-secondary);
  font-size: 0.875rem;
  white-space: nowrap;
}

.control-input {
  padding: var(--space-xs) var(--space-sm);
  border: 1px solid var(--gray-300);
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  background: var(--bg-primary);
  color: var(--text-primary);
  min-width: 120px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.control-input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.2);
}

.search-input {
  min-width: 200px;
}

/* Comments Control Hint */
.control-hint {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: 0.75rem;
  color: var(--text-muted);
  font-style: italic;
  margin-left: var(--space-md);
  padding-left: var(--space-md);
  border-left: 1px solid var(--gray-300);
}

.blue-triangle {
  color: var(--primary);
  font-size: 0.875rem;
  font-weight: bold;
}

/* Active Filters */
.filter-controls {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

.filter-tag {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-xs) var(--space-sm);
  background: var(--primary);
  color: white;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 500;
}

.filter-remove {
  background: none;
  border: none;
  color: white;
  cursor: pointer;
  padding: 0;
  font-size: 0.875rem;
  opacity: 0.8;
  transition: opacity 0.2s ease;
}

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

/* 
==================================================
  12. ADVANCED TABLE SYSTEM
==================================================
*/

/* Advanced Table Container */
.advanced-table-container {
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--bg-primary);
}

.table-wrapper {
  overflow-x: auto;
  max-height: 600px;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  border-radius: var(--radius-lg);
}

.advanced-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 800px;
}

/* Advanced Table Headers */
.advanced-table th {
  position: sticky;
  top: 0;
  background: var(--gray-100);
  padding: var(--space-md);
  text-align: left;
  font-weight: 600;
  color: var(--text-secondary);
  font-size: 0.875rem;
  border-bottom: 1px solid var(--gray-200);
  cursor: pointer;
  user-select: none;
  transition: background-color 0.2s ease;
  z-index: 10;
  white-space: nowrap;
  min-width: 120px;
}

.advanced-table th:hover {
  background: var(--gray-200);
}

.advanced-table th[data-sort] {
  position: relative;
}

/* Column-specific widths */
.advanced-table th:nth-child(1) {
  min-width: 100px;
} /* Type + expand */
.advanced-table th:nth-child(2) {
  min-width: 200px;
} /* Title */
.advanced-table th:nth-child(3) {
  min-width: 120px;
} /* Status */
.advanced-table th:nth-child(4) {
  min-width: 100px;
} /* Priority */
.advanced-table th:nth-child(5) {
  min-width: 140px;
} /* Assigned To */
.advanced-table th:nth-child(6) {
  min-width: 120px;
} /* Author */
.advanced-table th:nth-child(7) {
  min-width: 100px;
} /* Created */
.advanced-table th:nth-child(8) {
  min-width: 100px;
} /* Due Date */
.advanced-table th:nth-child(9) {
  min-width: 80px;
} /* Comments */

/* Sort Indicators */
.sort-indicator {
  display: inline-block;
  margin-left: var(--space-xs);
  opacity: 0.5;
  font-size: 0.75rem;
  transition: opacity 0.2s ease, color 0.2s ease;
  width: 12px;
  text-align: center;
}

.sort-indicator.active {
  opacity: 1;
  color: var(--primary);
}

/* Advanced Table Cells */
.advanced-table td {
  padding: var(--space-md);
  border-bottom: 1px solid var(--gray-100);
  color: var(--text-primary);
  font-size: 0.875rem;
  vertical-align: top;
  line-height: 1.4;
}

.advanced-table tr:hover {
  background: var(--gray-50);
}

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

/* Row Type Styling */
.row-type-topic {
  font-weight: 500;
  background: var(--bg-primary);
}

.row-type-comment {
  background: var(--gray-50);
  border-left: 3px solid var(--primary);
  animation: slideIn 0.2s ease-out;
}

.row-type-comment:hover {
  background: var(--gray-100);
}

/* ✅ Viewpoint row styling - different shade from comments */
.row-type-viewpoint {
  background-color: #fef7f0 !important;
  border-left: 3px solid #10b981 !important;
  animation: slideIn 0.2s ease-out;
}

.row-type-viewpoint:hover {
  background: #fed7aa !important;
}

.row-type-viewpoint td {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.row-type-comment td {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.row-type-comment .cell-type {
  font-style: italic;
  color: var(--text-muted);
}

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

/* Cell Type Styling */
.cell-title {
  font-weight: 500;
  max-width: 250px;
}

.cell-comment {
  max-width: 300px;
  font-style: italic;
  color: var(--text-secondary);
}

.cell-comment-title {
  padding-left: calc(var(--space-xl) + var(--space-sm)) !important;
  position: relative;
  font-style: italic;
  color: var(--text-secondary);
}

.cell-viewpoint-title {
  padding-left: 1.5rem;
  font-style: italic;
  color: #059669;
  font-weight: 500;
}

.cell-comment-title::before {
  content: '↳';
  position: absolute;
  left: var(--space-md);
  color: var(--text-muted);
  font-style: normal;
  font-size: 0.875rem;
}

.cell-author {
  font-family: var(--font-mono);
  font-size: 0.8rem;
}

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

/* Expandable Cell Functionality */
.expandable {
  cursor: help;
  position: relative;
}

.expandable:hover {
  background: var(--gray-50);
}

.expandable::after {
  content: '';
  position: absolute;
  right: 2px;
  bottom: 2px;
  width: 4px;
  height: 4px;
  background: var(--primary);
  border-radius: 50%;
  opacity: 0.6;
}

.expandable:hover::after {
  opacity: 1;
  transform: scale(1.2);
}

/* Expand/Collapse Buttons */
.expand-button {
  background: none;
  border: none;
  color: var(--primary);
  cursor: pointer;
  font-size: 0.875rem;
  padding: 2px 4px;
  margin-right: var(--space-xs);
  border-radius: var(--radius-sm);
  transition: all 0.2s ease;
  vertical-align: middle;
  line-height: 1;
  min-width: 16px;
  text-align: center;
}

.expand-button:hover {
  background: var(--primary);
  color: white;
  transform: scale(1.1);
}

.expand-button:focus {
  outline: 2px solid var(--primary);
  outline-offset: 1px;
}

.expand-button[title*='Collapse']:hover {
  background: var(--success);
}

/* Custom Tooltip System */
.custom-tooltip {
  position: fixed;
  background: var(--bg-primary);
  color: var(--text-primary);
  border: 1px solid var(--gray-300);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  max-width: 400px;
  word-wrap: break-word;
  z-index: 1000;
  box-shadow: var(--shadow-lg);
  white-space: normal;
  line-height: 1.4;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
  margin-top: 8px;
}

.custom-tooltip.show {
  opacity: 1;
}

.custom-tooltip::before {
  content: '';
  position: absolute;
  top: -6px;
  left: 15px;
  border-left: 6px solid transparent;
  border-right: 6px solid transparent;
  border-bottom: 6px solid var(--bg-primary);
}

.custom-tooltip::after {
  content: '';
  position: absolute;
  top: -7px;
  left: 14px;
  border-left: 7px solid transparent;
  border-right: 7px solid transparent;
  border-bottom: 7px solid var(--gray-300);
  z-index: -1;
}

/* Scrollbar Styling */
.table-wrapper::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

.table-wrapper::-webkit-scrollbar-track {
  background: var(--gray-100);
  border-radius: var(--radius-sm);
}

.table-wrapper::-webkit-scrollbar-thumb {
  background: var(--gray-400);
  border-radius: var(--radius-sm);
}

.table-wrapper::-webkit-scrollbar-thumb:hover {
  background: var(--gray-500);
}

/* 
==================================================
  13. STATUS & PRIORITY BADGES
==================================================
*/

/* Status Badges */
.status-badge {
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.025em;
}

.status-open {
  background: #fef3c7;
  color: #92400e;
}

.status-in-progress {
  background: #dbeafe;
  color: #1e40af;
}

.status-under-review {
  background: #e0e7ff;
  color: #5b21b6;
}

.status-closed {
  background: #d1fae5;
  color: #065f46;
}

.status-rejected {
  background: #fee2e2;
  color: #991b1b;
}

/* Priority Badges */
.priority-badge {
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.025em;
}

.priority-low {
  background: #f3f4f6;
  color: #374151;
}

.priority-medium {
  background: #fef3c7;
  color: #92400e;
}

.priority-high {
  background: #fed7aa;
  color: #c2410c;
}

.priority-critical {
  background: #fee2e2;
  color: #991b1b;
}

/* 
==================================================
  14. PAGINATION SYSTEM
==================================================
*/
.pagination-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-lg);
  background: var(--bg-tertiary);
  border-top: 1px solid var(--gray-200);
  flex-wrap: wrap;
  gap: var(--space-md);
}

.pagination-info {
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
  white-space: nowrap;
}

.pagination-controls {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  flex-wrap: wrap;
}

.pagination-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 36px;
  height: 36px;
  padding: var(--space-xs) var(--space-sm);
  border: 1px solid var(--gray-300);
  background: var(--bg-primary);
  color: var(--text-primary);
  border-radius: var(--radius-md);
  cursor: pointer;
  font-size: 0.875rem;
  font-weight: 500;
  transition: all 0.2s ease;
  text-decoration: none;
  user-select: none;
}

.pagination-button:hover:not(:disabled) {
  background: var(--gray-50);
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

.pagination-button:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  background: var(--gray-100);
  color: var(--gray-400);
  transform: none;
}

.pagination-button.active {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
  font-weight: 600;
  box-shadow: var(--shadow-md);
}

.pagination-button.active:hover {
  background: var(--primary-hover);
  transform: none;
}

.pagination-button:focus {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

.pagination-button:active:not(:disabled) {
  transform: translateY(0);
  box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.1);
}

/* Navigation Arrow Styling */
.pagination-button[title*='First'],
.pagination-button[title*='Previous'],
.pagination-button[title*='Next'],
.pagination-button[title*='Last'] {
  font-family: var(--font-mono);
  font-weight: 700;
}

#page-numbers {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  margin: 0 var(--space-sm);
}

.pagination-ellipsis {
  display: inline-flex;
  align-items: center;
  padding: 0 var(--space-xs);
  color: var(--text-muted);
  font-size: 0.875rem;
}

/* 
==================================================
  15. FIELD SELECTION SYSTEM
==================================================
*/
.export-controls {
  margin-top: var(--space-xl);
  padding-top: var(--space-xl);
  border-top: 1px solid var(--gray-200);
}

.export-controls h4 {
  margin-bottom: var(--space-md);
  color: var(--text-primary);
  font-size: 1.25rem;
  font-weight: 600;
}

.field-selection {
  margin-bottom: var(--space-xl);
  padding: var(--space-lg);
  background: var(--bg-tertiary);
  border-radius: var(--radius-lg);
  border: 1px solid var(--gray-200);
}

.field-selection h5 {
  margin-bottom: var(--space-md);
  color: var(--text-primary);
  font-size: 1.125rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.field-count {
  font-size: 0.875rem;
  color: var(--text-muted);
  font-weight: 400;
}

.field-selection-controls {
  display: flex;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
  flex-wrap: wrap;
}

.field-selection-controls .btn {
  padding: var(--space-xs) var(--space-sm);
  font-size: 0.875rem;
  min-height: 36px;
}

/* Field Categories */
.field-category {
  margin-bottom: var(--space-md);
}

.field-category h6 {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-xs);
  padding-left: var(--space-xs);
}

.field-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--space-sm);
  margin-top: var(--space-md);
}

.field-item {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-xs);
  border-radius: var(--radius-sm);
  transition: background-color 0.2s ease;
}

.field-item:hover {
  background: var(--bg-primary);
}

.field-item input[type='checkbox'] {
  width: 16px;
  height: 16px;
  accent-color: var(--primary);
}

.field-item label {
  font-size: 0.875rem;
  color: var(--text-secondary);
  cursor: pointer;
  user-select: none;
}

.custom-indicator {
  color: var(--accent);
  font-weight: 600;
  font-size: 0.75rem;
}

.field-item:hover .custom-indicator {
  color: var(--primary);
}

.export-buttons {
  display: flex;
  gap: var(--space-md);
  margin-top: var(--space-md);
  flex-wrap: wrap;
}

/* 
==================================================
  15a SECTION CHECKBOX ENHANCEMENTS
  Added for section-level field control
==================================================
*/

/* Section header styling */
.category-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
  padding: 0.5rem;
  background-color: #f8f9fa;
  border-radius: 0.375rem;
  border: 1px solid #e5e7eb;
  transition: background-color 0.2s ease;
}

.category-header:hover {
  background-color: #e5e7eb;
}

/* Section checkbox styling */
.section-checkbox {
  width: 1.1rem;
  height: 1.1rem;
  cursor: pointer;
  margin: 0;
  accent-color: var(--primary);
}

/* Section checkbox indeterminate state styling */
.section-checkbox:indeterminate {
  background-color: var(--primary);
  border-color: var(--primary);
}

/* Field count styling */
.section-field-count {
  font-size: 0.875rem;
  color: #6b7280;
  font-weight: normal;
  margin-left: 0.25rem;
}

/* Enhanced field category spacing */
.field-category {
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid #f3f4f6;
}

.field-category:last-child {
  border-bottom: none;
}

/* Section label styling */
.category-header label {
  font-weight: 600;
  color: var(--text-primary);
  cursor: pointer;
  margin: 0;
  user-select: none;
  font-size: 0.875rem;
  flex: 1;
}

/* Dark mode adjustments */
@media (prefers-color-scheme: dark) {
  .category-header {
    background-color: var(--bg-tertiary);
    border-color: var(--gray-600);
  }

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

  .section-field-count {
    color: var(--text-muted);
  }
}

/* Mobile responsive adjustments */
@media (max-width: 768px) {
  .category-header {
    padding: 0.375rem;
    gap: 0.375rem;
  }

  .section-checkbox {
    width: 1rem;
    height: 1rem;
  }

  .category-header label {
    font-size: 0.8rem;
  }

  .section-field-count {
    font-size: 0.75rem;
  }
}

/* 
==================================================
  16. CONFIGURATION MANAGEMENT (PHASE 3D)
==================================================
*/

/* Configuration Tab Content */
.configuration-content {
  max-width: 1000px;
  margin: 0 auto;
}

.config-section {
  margin-bottom: var(--space-2xl);
  padding: var(--space-xl);
  background: var(--bg-primary);
  border-radius: var(--radius-lg);
  border: 1px solid var(--gray-200);
  box-shadow: var(--shadow-sm);
}

.config-section h4 {
  color: var(--primary);
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
  border-bottom: 2px solid var(--primary);
  padding-bottom: var(--space-sm);
}

.section-description {
  color: var(--text-muted);
  font-size: 0.875rem;
  margin-bottom: var(--space-lg);
  line-height: 1.5;
}

/* Template Management Layout */
.template-management {
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
}

.template-import-export {
  padding: var(--space-lg);
  background: var(--bg-primary);
  border-radius: var(--radius-md);
  border: 1px solid var(--gray-200);
}

.template-import-export h5 {
  color: var(--primary);
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-xs);
  border-bottom: 1px solid var(--gray-200);
}

.template-file-actions {
  display: flex;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

.template-file-info {
  color: var(--text-muted);
  font-size: 0.75rem;
  line-height: 1.4;
  font-style: italic;
}

.template-file-actions .btn {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: 0.875rem;
}

/* Main Template Grid - Side by Side */
.template-main-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
}

.saved-templates,
.template-creation {
  background: var(--bg-primary);
  border-radius: var(--radius-md);
  border: 1px solid var(--gray-200);
  padding: var(--space-lg);
}

.saved-templates h5,
.template-creation h5 {
  color: var(--text-primary);
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-xs);
  border-bottom: 1px solid var(--gray-200);
}

/* Template Lists */
.templates-list {
  max-height: 400px;
  overflow-y: auto;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-md);
  background: var(--bg-tertiary);
}

.template-item {
  padding: var(--space-md);
  border-bottom: 1px solid var(--gray-200);
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: background-color 0.2s ease;
}

.template-item:hover {
  background: var(--bg-primary);
}

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

.template-info {
  flex: 1;
}

.template-name {
  font-weight: 600;
  color: var(--text-primary);
  font-size: 0.875rem;
  margin-bottom: var(--space-xs);
}

.template-description {
  color: var(--text-secondary);
  font-size: 0.75rem;
  margin-bottom: var(--space-xs);
  font-style: italic;
}

.template-meta {
  display: flex;
  gap: var(--space-sm);
  font-size: 0.7rem;
  color: var(--text-muted);
}

.template-meta span {
  padding: 2px 6px;
  background: var(--gray-100);
  border-radius: var(--radius-sm);
}

.template-actions {
  display: flex;
  gap: var(--space-xs);
}

/* Template Form */
.template-form {
  background: none;
  padding: 0;
  border: none;
}

.form-group {
  margin-bottom: var(--space-md);
}

.form-group label {
  display: block;
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: var(--space-xs);
  font-size: 0.875rem;
}

.form-group input {
  width: 100%;
  padding: var(--space-sm);
  border: 1px solid var(--gray-300);
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  background: var(--bg-primary);
  color: var(--text-primary);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-group input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.2);
}

.form-group small {
  display: block;
  color: var(--text-muted);
  font-size: 0.7rem;
  margin-top: var(--space-xs);
  font-style: italic;
}

.form-actions {
  display: flex;
  gap: var(--space-sm);
  margin-top: var(--space-lg);
}

/* Template Edit Mode */
.template-form.editing {
  border: 2px solid var(--warning);
  background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
  position: relative;
  padding: var(--space-lg);
  border-radius: var(--radius-md);
}

.template-form.editing::before {
  content: '✏️ Editing Template';
  position: absolute;
  top: -12px;
  left: var(--space-md);
  background: var(--warning);
  color: white;
  padding: 4px 12px;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 600;
}

.template-item.editing {
  background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
  border: 2px solid var(--warning);
  border-radius: var(--radius-md);
}

.template-item.editing .template-name::before {
  content: '✏️ ';
}

/* Cancel Edit Button */
#cancel-edit-btn {
  background-color: var(--gray-500);
  color: white;
  border-color: var(--gray-500);
}

#cancel-edit-btn:hover {
  background-color: var(--gray-600);
  border-color: var(--gray-600);
}

/* User Preferences */
.preferences-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}

.pref-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.pref-group label {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.875rem;
  color: var(--text-primary);
  cursor: pointer;
}

.pref-group input[type='checkbox'] {
  width: 16px;
  height: 16px;
  accent-color: var(--primary);
}

.pref-group select {
  padding: var(--space-sm);
  border: 1px solid var(--gray-300);
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  background: var(--bg-primary);
  color: var(--text-primary);
}

/* Processing History */
.history-container {
  background: var(--bg-tertiary);
  border-radius: var(--radius-md);
  border: 1px solid var(--gray-200);
  padding: var(--space-lg);
}

.history-list {
  max-height: 400px;
  overflow-y: auto;
  margin-bottom: var(--space-lg);
}

.history-item {
  padding: var(--space-md);
  border-bottom: 1px solid var(--gray-200);
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: background-color 0.2s ease;
}

.history-item:hover {
  background: var(--bg-primary);
}

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

.history-info {
  flex: 1;
}

.history-filename {
  font-weight: 600;
  color: var(--text-primary);
  font-size: 0.875rem;
  margin-bottom: var(--space-xs);
}

.history-meta {
  color: var(--text-secondary);
  font-size: 0.75rem;
  margin-bottom: var(--space-xs);
}

.history-template {
  color: var(--text-muted);
  font-size: 0.7rem;
  font-style: italic;
}

.history-actions {
  display: flex;
  gap: var(--space-xs);
}

/* Scrollbar for Lists */
.templates-list::-webkit-scrollbar,
.history-list::-webkit-scrollbar {
  width: 6px;
}

.templates-list::-webkit-scrollbar-track,
.history-list::-webkit-scrollbar-track {
  background: var(--gray-100);
  border-radius: var(--radius-sm);
}

.templates-list::-webkit-scrollbar-thumb,
.history-list::-webkit-scrollbar-thumb {
  background: var(--gray-400);
  border-radius: var(--radius-sm);
}

.templates-list::-webkit-scrollbar-thumb:hover,
.history-list::-webkit-scrollbar-thumb:hover {
  background: var(--gray-500);
}

/* Empty States */
.empty-state {
  text-align: center;
  padding: var(--space-2xl);
  color: var(--text-muted);
  font-style: italic;
}

.empty-state p {
  margin: 0;
  font-size: 0.875rem;
}

/* 
==================================================
  17. FOOTER
==================================================
*/
footer {
  background-color: var(--gray-900);
  color: var(--gray-300);
  text-align: center;
  padding: var(--space-2xl) 0;
  margin-top: var(--space-2xl);
}

footer a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.2s ease;
}

footer a:hover {
  color: var(--primary);
  text-decoration: underline;
}

/* 
==================================================
  18. UTILITY CLASSES
==================================================
*/
.hidden {
  display: none !important;
}

.text-center {
  text-align: center;
}

.mt-1 {
  margin-top: var(--space-md);
}
.mt-2 {
  margin-top: var(--space-xl);
}
.mb-1 {
  margin-bottom: var(--space-md);
}
.mb-2 {
  margin-bottom: var(--space-xl);
}

/* 
==================================================
  19. ACCESSIBILITY & ANIMATIONS
==================================================
*/

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* Focus Management */
.skip-link {
  position: absolute;
  top: -40px;
  left: 6px;
  background: var(--primary);
  color: white;
  padding: 8px;
  text-decoration: none;
  border-radius: var(--radius-sm);
  z-index: 100;
}

.skip-link:focus {
  top: 6px;
}

/* 
==================================================
  20. RESPONSIVE DESIGN
==================================================
*/

/* Large Screens (Desktop) */
@media (min-width: 1200px) {
  .container {
    max-width: 1400px;
  }

  .advanced-table th:nth-child(2) {
    min-width: 250px;
  }
}

/* Medium Screens (Tablet) */
@media (max-width: 968px) {
  .template-main-grid {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .template-file-actions {
    flex-direction: column;
  }

  .template-file-actions .btn {
    width: 100%;
    justify-content: center;
  }

  .advanced-table th:nth-child(2) {
    min-width: 180px;
  }

  .advanced-table th:nth-child(5) {
    min-width: 120px;
  }
}

@media (max-width: 768px) {
  .container {
    padding: 0 var(--space-md);
  }

  header {
    padding: var(--space-xl) 0;
  }

  header h1 {
    font-size: 2.5rem;
  }

  .drop-zone {
    padding: var(--space-xl) var(--space-md);
    min-height: 160px;
  }

  .card {
    padding: var(--space-lg);
  }

  .export-buttons {
    flex-direction: column;
  }

  .info-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-sm);
  }

  .btn {
    width: 100%;
    justify-content: center;
  }

  /* Advanced Preview Mobile */
  .advanced-controls {
    flex-direction: column;
    align-items: stretch;
  }

  .control-group {
    justify-content: space-between;
  }

  .control-input {
    min-width: auto;
    flex: 1;
  }

  .search-input {
    min-width: auto;
  }

  .pagination-container {
    flex-direction: column;
    gap: var(--space-md);
  }

  .pagination-controls {
    flex-wrap: wrap;
    justify-content: center;
  }

  .data-summary {
    grid-template-columns: repeat(2, 1fr);
  }

  .preview-tabs {
    flex-direction: column;
  }

  .tab-button {
    text-align: left;
    border-bottom: none;
    border-left: 2px solid transparent;
  }

  .tab-button.active {
    border-bottom: none;
    border-left-color: var(--primary);
  }

  .advanced-table {
    min-width: 700px;
  }

  .advanced-table th,
  .advanced-table td {
    padding: var(--space-sm);
    font-size: 0.8rem;
  }

  .notice-content {
    flex-direction: column;
    text-align: center;
    gap: var(--space-sm);
  }

  .notice-text {
    font-size: 0.8rem;
  }

  .control-hint {
    flex-direction: column;
    text-align: center;
    margin-left: 0;
    padding-left: 0;
    border-left: none;
    border-top: 1px solid var(--gray-300);
    padding-top: var(--space-xs);
    margin-top: var(--space-xs);
    font-size: 0.7rem;
  }

  .expand-button {
    font-size: 0.75rem;
    padding: 1px 3px;
    margin-right: 4px;
  }

  .control-btn {
    font-size: 0.7rem;
    padding: 4px 8px;
  }

  .cell-comment-title {
    padding-left: calc(var(--space-lg) + var(--space-xs)) !important;
  }

  .cell-comment-title::before {
    left: var(--space-sm);
    font-size: 0.75rem;
  }

  /* Configuration Mobile */
  .template-management {
    gap: var(--space-lg);
  }

  .saved-templates,
  .template-creation {
    padding: var(--space-md);
  }

  .template-item {
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-sm);
  }

  .template-actions {
    justify-content: center;
  }

  .form-actions {
    flex-direction: column;
  }

  .form-actions .btn {
    width: 100%;
  }
}

/* Small Screens (Mobile) */
@media (max-width: 480px) {
  .container {
    padding: 0 var(--space-md);
  }

  .card {
    padding: var(--space-md);
  }

  .drop-zone {
    padding: var(--space-md);
  }

  header h1 {
    font-size: 2rem;
  }

  .tagline {
    font-size: 1rem;
  }

  .info-grid {
    grid-template-columns: 1fr;
  }

  .data-summary {
    grid-template-columns: 1fr;
  }

  .advanced-table {
    min-width: 500px;
  }

  .advanced-table th,
  .advanced-table td {
    padding: var(--space-xs);
    font-size: 0.75rem;
  }

  .config-section {
    padding: var(--space-md);
  }

  .control-group:has(.control-btn) {
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-xs);
  }

  .control-btn {
    margin-left: 0;
    text-align: center;
  }

  .expand-button {
    font-size: 0.7rem;
  }

  .control-hint {
    display: none;
  }

  .pagination-button {
    min-width: 28px;
    height: 28px;
    padding: 2px 4px;
    font-size: 0.7rem;
  }

  #page-numbers {
    margin: 0 2px;
  }

  .pagination-button:not(.active):not([title]):nth-child(n + 6) {
    display: none;
  }
}

/* 
==================================================
  21. DARK MODE ENHANCEMENTS
==================================================
*/
@media (prefers-color-scheme: dark) {
  .expand-button {
    color: var(--accent);
  }

  .expand-button:hover {
    background: var(--accent);
    color: var(--bg-primary);
  }

  .row-type-comment {
    background: var(--bg-tertiary);
    border-left-color: var(--accent);
  }

  .row-type-comment:hover {
    background: var(--bg-secondary);
  }
}

/* 
==================================================
  22. PRINT STYLES
==================================================
*/
@media print {
  header,
  footer,
  .preview-tabs,
  .advanced-controls,
  .pagination-container,
  .export-controls,
  .configuration-content {
    display: none !important;
  }

  body {
    background: white !important;
    color: black !important;
    font-size: 12pt;
    line-height: 1.4;
  }

  .card {
    box-shadow: none !important;
    border: 1px solid #ccc !important;
    margin-bottom: 1rem !important;
    page-break-inside: avoid;
  }

  .advanced-table {
    font-size: 10pt;
  }

  .advanced-table th,
  .advanced-table td {
    padding: 4pt 6pt;
    border: 1px solid #ccc !important;
  }

  .advanced-table th {
    background: #f5f5f5 !important;
    font-weight: bold;
  }

  .status-badge,
  .priority-badge {
    border: 1px solid #ccc !important;
    background: white !important;
    color: black !important;
  }

  .row-type-comment {
    background: #f9f9f9 !important;
  }

  /* Hide interactive elements */
  .expand-button,
  .filter-tag,
  .btn {
    display: none !important;
  }

  /* Page breaks */
  .config-section {
    page-break-before: always;
  }

  h1,
  h2,
  h3,
  h4,
  h5,
  h6 {
    page-break-after: avoid;
  }

  tr {
    page-break-inside: avoid;
  }
}

/* 
==================================================
  23. HIGH CONTRAST MODE SUPPORT
==================================================
*/
@media (prefers-contrast: high) {
  :root {
    --primary: #0000ff;
    --primary-hover: #000080;
    --danger: #ff0000;
    --success: #008000;
    --warning: #ff8000;
    --text-primary: #000000;
    --text-secondary: #333333;
    --bg-primary: #ffffff;
    --bg-secondary: #f0f0f0;
    --gray-200: #cccccc;
    --gray-300: #aaaaaa;
  }

  .btn {
    border: 2px solid currentColor !important;
  }

  .status-badge,
  .priority-badge {
    border: 2px solid currentColor;
    font-weight: bold;
  }

  .advanced-table th,
  .advanced-table td {
    border: 1px solid #000000 !important;
  }

  .drop-zone {
    border: 3px solid var(--primary) !important;
  }

  .card {
    border: 2px solid var(--gray-300) !important;
  }
}

/* 
==================================================
  24. PERFORMANCE OPTIMIZATIONS
==================================================
*/

/* GPU Acceleration for Animations */
.btn,
.card,
.pagination-button,
.expand-button,
.template-item,
.history-item {
  will-change: transform;
  transform: translateZ(0);
}

/* Optimize scrolling performance */
.table-wrapper,
.templates-list,
.history-list {
  -webkit-overflow-scrolling: touch;
  overflow-anchor: none;
}

/* Contain layout shifts */
.spinner {
  contain: layout style paint;
}

.pagination-container {
  contain: layout;
}

/* 
==================================================
  25. BROWSER-SPECIFIC FIXES
==================================================
*/

/* Firefox-specific fixes */
@-moz-document url-prefix() {
  .advanced-table th {
    position: sticky;
  }

  .pagination-button {
    appearance: none;
    -moz-appearance: none;
  }
}

/* Safari-specific fixes */
@supports (-webkit-appearance: none) {
  .control-input,
  .form-group input,
  .pref-group select {
    appearance: none;
    -webkit-appearance: none;
  }

  .advanced-table {
    -webkit-overflow-scrolling: touch;
  }
}

/* Modern browser sticky positioning */
.advanced-table th {
  position: sticky;
  position: -webkit-sticky; /* Safari fallback */
}

/* 
==================================================
  26. FINAL CLEANUP & OVERRIDES
==================================================
*/

/* Ensure consistent box-sizing */
*,
*::before,
*::after {
  box-sizing: border-box;
}

/* Remove default focus outlines and replace with custom ones */
*:focus {
  outline: none;
}

button:focus,
input:focus,
select:focus,
.btn:focus,
.pagination-button:focus,
.expand-button:focus {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

/* Ensure text remains selectable */
.tab-button,
.pagination-button,
.expand-button {
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}

/* Force hardware acceleration on key interactive elements */
.advanced-table-container,
.table-wrapper {
  transform: translateZ(0);
  -webkit-transform: translateZ(0);
}

/* Ensure smooth scrolling where supported */
@media (prefers-reduced-motion: no-preference) {
  html {
    scroll-behavior: smooth;
  }
}

/* Final z-index stacking context */
.custom-tooltip {
  z-index: 1000;
}

.advanced-table th {
  z-index: 10;
}

header::before {
  z-index: 1;
}

header .container {
  z-index: 2;
}

/* 
==================================================
  27. IMAGE VIEWER SYSTEM (VERSION 2.0)
==================================================
*/

/* Image Viewer Layout */
.image-viewer-content {
  max-width: 1200px;
  margin: 0 auto;
}

.image-viewer-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: var(--space-xl);
  padding: var(--space-lg);
  background: var(--bg-tertiary);
  border-radius: var(--radius-lg);
  border: 1px solid var(--gray-200);
}

.viewer-title h4 {
  color: var(--primary);
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: var(--space-xs);
}

.viewer-description {
  color: var(--text-muted);
  font-size: 0.875rem;
  margin: 0;
}

.viewer-stats {
  display: flex;
  gap: var(--space-lg);
}

.stat-item {
  text-align: center;
  min-width: 80px;
}

.stat-value {
  display: block;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: var(--space-xs);
}

.stat-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Image Viewer Controls */
.image-viewer-controls {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
  padding: var(--space-lg);
  background: var(--bg-tertiary);
  border-radius: var(--radius-lg);
  align-items: center;
}

/* No Images Message */
.no-images-message {
  text-align: center;
  padding: var(--space-2xl) var(--space-lg);
  background: var(--bg-tertiary);
  border-radius: var(--radius-lg);
  border: 2px dashed var(--gray-300);
  margin: var(--space-xl) 0;
}

.no-images-content {
  max-width: 400px;
  margin: 0 auto;
}

.no-images-icon {
  font-size: 3rem;
  margin-bottom: var(--space-lg);
  opacity: 0.7;
}

.no-images-message h3 {
  color: var(--text-primary);
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: var(--space-md);
}

.no-images-message p {
  color: var(--text-muted);
  margin-bottom: var(--space-sm);
  line-height: 1.5;
}

.no-images-message em {
  color: var(--text-secondary);
  font-size: 0.875rem;
}

/* Image Cards Grid */
.image-cards-container {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: var(--space-lg);
  margin-bottom: var(--space-xl);
}

/* Individual Image Card */
.image-card {
  background: var(--bg-primary);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--gray-200);
  overflow: hidden;
  transition: all 0.2s ease-in-out;
  cursor: pointer;
}

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

/* Image Card Header */
.card-header {
  padding: var(--space-md);
  border-bottom: 1px solid var(--gray-200);
}

.card-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-xs);
  line-height: 1.3;
  /* Limit title to 2 lines with proper webkit support */
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2; /* Standard property for compatibility */
  -webkit-box-orient: vertical;
  overflow: hidden;
  word-wrap: break-word;
  /* Fallback for non-webkit browsers */
  max-height: calc(1.3em * 2); /* line-height * number of lines */
}

.card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  align-items: center;
}

.card-status {
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  font-size: 0.7rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.025em;
}

.card-author {
  font-size: 0.75rem;
  color: var(--text-secondary);
  font-family: var(--font-mono);
}

.card-date {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

/* Image Card Image Section */
.card-image-section {
  position: relative;
  height: 200px;
  background: var(--gray-100);
  overflow: hidden;
}

.card-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.image-card:hover .card-image {
  transform: scale(1.05);
}

.image-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
  background: linear-gradient(135deg, var(--gray-100) 0%, var(--gray-200) 100%);
  color: var(--text-muted);
  font-size: 0.875rem;
  text-align: center;
  padding: var(--space-md);
}

.image-count-badge {
  position: absolute;
  top: var(--space-sm);
  right: var(--space-sm);
  background: rgba(0, 0, 0, 0.7);
  color: white;
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  font-size: 0.7rem;
  font-weight: 500;
}

/* Image Card Footer */
.card-footer {
  padding: var(--space-md);
  background: var(--bg-tertiary);
}

.card-description {
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.4;
  margin-bottom: var(--space-sm);
  /* Limit description to 3 lines with proper webkit support */
  display: -webkit-box;
  -webkit-line-clamp: 3;
  line-clamp: 3; /* Standard property for compatibility */
  -webkit-box-orient: vertical;
  overflow: hidden;
  word-wrap: break-word;
  /* Fallback for non-webkit browsers */
  max-height: calc(1.4em * 3); /* line-height * number of lines */
}

.card-actions {
  display: flex;
  gap: var(--space-xs);
  align-items: center;
}

.card-button {
  padding: var(--space-xs) var(--space-sm);
  border: 1px solid var(--gray-300);
  background: var(--bg-primary);
  color: var(--text-primary);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 0.75rem;
  font-weight: 500;
  transition: all 0.2s ease;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 2px;
}

.card-button:hover {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
  transform: translateY(-1px);
}

.card-button.primary {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}

.card-button.primary:hover {
  background: var(--primary-hover);
  border-color: var(--primary-hover);
}

/* Image Lightbox/Modal */
.image-lightbox {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.9);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: var(--space-lg);
}

.image-lightbox.active {
  display: flex;
}

.lightbox-content {
  position: relative;
  max-width: 90vw;
  max-height: 90vh;
  background: var(--bg-primary);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
}

.lightbox-header {
  padding: var(--space-md);
  background: var(--bg-tertiary);
  border-bottom: 1px solid var(--gray-200);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.lightbox-title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0;
}

.lightbox-close {
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--text-muted);
  padding: var(--space-xs);
  border-radius: var(--radius-sm);
  transition: all 0.2s ease;
}

.lightbox-close:hover {
  background: var(--gray-200);
  color: var(--text-primary);
}

.lightbox-image {
  width: 100%;
  height: auto;
  max-height: 70vh;
  object-fit: contain;
  display: block;
}

/* Image Pagination (reuse existing pagination styles) */
.image-pagination-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-lg);
  background: var(--bg-tertiary);
  border-radius: var(--radius-lg);
  margin-top: var(--space-lg);
  flex-wrap: wrap;
  gap: var(--space-md);
}

/* Responsive Design for Image Viewer */
@media (max-width: 768px) {
  .image-viewer-header {
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-md);
  }

  .viewer-stats {
    justify-content: space-around;
  }

  .image-viewer-controls {
    flex-direction: column;
    align-items: stretch;
  }

  .image-cards-container {
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--space-md);
  }

  .card-header {
    padding: var(--space-sm);
  }

  .card-image-section {
    height: 180px;
  }

  .card-footer {
    padding: var(--space-sm);
  }

  .lightbox-content {
    margin: var(--space-md);
    max-width: calc(100vw - 2 * var(--space-md));
    max-height: calc(100vh - 2 * var(--space-md));
  }

  .lightbox-image {
    max-height: 60vh;
  }
}

@media (max-width: 480px) {
  .image-cards-container {
    grid-template-columns: 1fr;
  }

  .card-image-section {
    height: 160px;
  }

  .viewer-stats {
    flex-direction: column;
    gap: var(--space-sm);
  }

  .stat-item {
    min-width: auto;
  }
}

/* 
==================================================
  28. ENHANCED IMAGE LIGHTBOX SYSTEM
==================================================
*/

/* Lightbox Overlay */
.image-lightbox {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.95);
  display: none;
  z-index: 10000;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.image-lightbox.active {
  display: flex;
  opacity: 1;
}

.lightbox-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  cursor: pointer;
}

/* Lightbox Content Container */
.lightbox-content {
  position: relative;
  width: 95vw;
  height: 95vh;
  margin: auto;
  background: var(--bg-primary);
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  z-index: 10001;
}

/* Lightbox Header */
.lightbox-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-md) var(--space-lg);
  background: var(--bg-tertiary);
  border-bottom: 1px solid var(--gray-200);
  flex-shrink: 0;
}

.lightbox-info {
  flex: 1;
}

.lightbox-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0 0 var(--space-xs) 0;
  line-height: 1.3;
}

.lightbox-meta {
  display: flex;
  gap: var(--space-md);
  align-items: center;
  flex-wrap: wrap;
}

.lightbox-status {
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.025em;
}

.lightbox-author,
.lightbox-date {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.lightbox-close {
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--text-muted);
  cursor: pointer;
  padding: var(--space-xs);
  border-radius: var(--radius-sm);
  transition: all 0.2s ease;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.lightbox-close:hover {
  background: var(--gray-200);
  color: var(--text-primary);
  transform: scale(1.1);
}

/* Image Container */
.lightbox-image-container {
  flex: 1;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: var(--bg-secondary);
}

.lightbox-image {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  transition: transform 0.3s ease;
  cursor: default;
}

.lightbox-image[style*='scale'] {
  cursor: grab;
}

.lightbox-image:active {
  cursor: grabbing;
}

/* Navigation Arrows */
.lightbox-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(0, 0, 0, 0.7);
  color: white;
  border: none;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  font-size: 1.5rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
  z-index: 10002;
}

.lightbox-nav:hover {
  background: rgba(0, 0, 0, 0.9);
  transform: translateY(-50%) scale(1.1);
}

.lightbox-prev {
  left: var(--space-lg);
}

.lightbox-next {
  right: var(--space-lg);
}

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

.lightbox-nav:disabled:hover {
  transform: translateY(-50%);
}

/* Zoom Controls */
.lightbox-zoom-controls {
  position: absolute;
  top: var(--space-lg);
  right: var(--space-lg);
  display: flex;
  gap: var(--space-xs);
  z-index: 10002;
}

.lightbox-zoom-controls button {
  background: rgba(0, 0, 0, 0.7);
  color: white;
  border: none;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
}

.lightbox-zoom-controls button:hover {
  background: rgba(0, 0, 0, 0.9);
  transform: scale(1.1);
}

/* Lightbox Actions */
.lightbox-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-md) var(--space-lg);
  background: var(--bg-tertiary);
  border-top: 1px solid var(--gray-200);
  flex-shrink: 0;
}

.lightbox-action-btn {
  padding: var(--space-xs) var(--space-md);
  border: 1px solid var(--gray-300);
  background: var(--bg-primary);
  color: var(--text-primary);
  border-radius: var(--radius-md);
  cursor: pointer;
  font-size: 0.875rem;
  font-weight: 500;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.lightbox-action-btn:hover {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
  transform: translateY(-1px);
}

.lightbox-counter {
  font-size: 0.875rem;
  color: var(--text-secondary);
  font-weight: 500;
}

/* Mobile Responsive Lightbox */
@media (max-width: 768px) {
  .lightbox-content {
    width: 100vw;
    height: 100vh;
    border-radius: 0;
  }

  .lightbox-header {
    padding: var(--space-sm) var(--space-md);
  }

  .lightbox-title {
    font-size: 1.125rem;
  }

  .lightbox-meta {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-xs);
  }

  .lightbox-nav {
    width: 40px;
    height: 40px;
    font-size: 1.25rem;
  }

  .lightbox-prev {
    left: var(--space-sm);
  }

  .lightbox-next {
    right: var(--space-sm);
  }

  .lightbox-zoom-controls {
    top: var(--space-sm);
    right: var(--space-sm);
    flex-direction: column;
  }

  .lightbox-zoom-controls button {
    width: 35px;
    height: 35px;
    font-size: 0.75rem;
  }

  .lightbox-actions {
    padding: var(--space-sm) var(--space-md);
    flex-wrap: wrap;
    gap: var(--space-sm);
  }

  .lightbox-action-btn {
    font-size: 0.75rem;
    padding: var(--space-xs) var(--space-sm);
  }
}

@media (max-width: 480px) {
  .lightbox-header {
    padding: var(--space-xs) var(--space-sm);
  }

  .lightbox-title {
    font-size: 1rem;
  }

  .lightbox-close {
    width: 35px;
    height: 35px;
    font-size: 1.25rem;
  }

  .lightbox-nav {
    width: 35px;
    height: 35px;
    font-size: 1rem;
  }

  .lightbox-zoom-controls button {
    width: 30px;
    height: 30px;
    font-size: 0.7rem;
  }
}

/* 
==================================================
  29. DOWNLOAD FUNCTIONALITY STYLES
==================================================
*/

/* Bulk Download Actions */
.image-bulk-actions {
  margin: var(--space-lg) 0;
  padding: var(--space-lg);
  background: var(--bg-tertiary);
  border-radius: var(--radius-lg);
  border: 1px solid var(--gray-200);
}

.bulk-actions-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-md);
}

.bulk-actions-header h5 {
  margin: 0;
  color: var(--text-primary);
  font-size: 1rem;
  font-weight: 600;
}

.bulk-count {
  font-size: 0.875rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.bulk-actions-buttons {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

.bulk-actions-buttons .btn {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

/* Download Progress Overlay */
.download-progress-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10000;
}

.download-progress-modal {
  background: var(--bg-primary);
  padding: var(--space-2xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  min-width: 400px;
  max-width: 500px;
  text-align: center;
}

.download-progress-modal h3 {
  margin: 0 0 var(--space-lg) 0;
  color: var(--text-primary);
  font-size: 1.25rem;
  font-weight: 600;
}

.progress-bar {
  width: 100%;
  height: 8px;
  background: var(--gray-200);
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-bottom: var(--space-md);
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  border-radius: var(--radius-md);
  transition: width 0.3s ease;
}

.progress-text {
  color: var(--text-secondary);
  font-size: 0.875rem;
  margin-bottom: var(--space-lg);
}

/* Download Feedback Toast */
.download-feedback {
  position: fixed;
  bottom: var(--space-xl);
  right: var(--space-xl);
  background: var(--success);
  color: white;
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  z-index: 10001;
  transition: opacity 0.3s ease;
  max-width: 400px;
  word-wrap: break-word;
}

/* Mobile Responsive */
@media (max-width: 768px) {
  .bulk-actions-header {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-xs);
  }

  .bulk-actions-buttons {
    justify-content: stretch;
  }

  .bulk-actions-buttons .btn {
    flex: 1;
    justify-content: center;
  }

  .download-progress-modal {
    margin: var(--space-md);
    min-width: auto;
    width: calc(100vw - 2 * var(--space-md));
  }

  .download-feedback {
    bottom: var(--space-md);
    right: var(--space-md);
    left: var(--space-md);
    max-width: none;
  }
}

@media (max-width: 480px) {
  .bulk-actions-buttons {
    flex-direction: column;
  }

  .download-progress-modal {
    padding: var(--space-lg);
  }
}

/* 
==================================================
  30. PDF LAYOUT DIALOG STYLES
==================================================
*/

/* PDF Layout Selection Dialog */
.pdf-layout-dialog {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
}

.pdf-dialog-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.8);
  cursor: pointer;
}

.pdf-dialog-content {
  position: relative;
  background: var(--bg-primary);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  max-width: 800px;
  width: 90vw;
  max-height: 90vh;
  overflow-y: auto;
  z-index: 10001;
}

.pdf-dialog-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-lg);
  border-bottom: 1px solid var(--gray-200);
}

.pdf-dialog-header h3 {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
}

.pdf-dialog-close {
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--text-muted);
  cursor: pointer;
  padding: var(--space-xs);
  border-radius: var(--radius-sm);
  transition: all 0.2s ease;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.pdf-dialog-close:hover {
  background: var(--gray-200);
  color: var(--text-primary);
}

/* PDF Layout Options */
.pdf-layout-options {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-lg);
  padding: var(--space-lg);
}

.pdf-layout-option {
  padding: var(--space-lg);
  border: 2px solid var(--gray-200);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all 0.2s ease;
  text-align: center;
  background: var(--bg-secondary);
}

.pdf-layout-option:hover {
  border-color: var(--primary);
  background: var(--bg-primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.pdf-option-icon {
  font-size: 2rem;
  margin-bottom: var(--space-md);
}

.pdf-layout-option h4 {
  margin: 0 0 var(--space-sm) 0;
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
}

.pdf-layout-option p {
  margin: 0 0 var(--space-sm) 0;
  color: var(--text-secondary);
  font-size: 0.875rem;
  line-height: 1.4;
}

.pdf-option-details {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-style: italic;
  margin-top: var(--space-xs);
}

/* PDF Dialog Footer */
.pdf-dialog-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-lg);
  border-top: 1px solid var(--gray-200);
  background: var(--bg-tertiary);
}

/* PDF Grouping Options */
.pdf-grouping-options {
  padding: var(--space-lg);
  border-top: 1px solid var(--gray-200);
  background: var(--bg-secondary);
}

.pdf-grouping-options h4 {
  margin: 0 0 var(--space-md) 0;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
}

.pdf-checkbox-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.pdf-checkbox-label {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: 0.875rem;
  color: var(--text-primary);
  cursor: pointer;
  user-select: none;
}

.pdf-checkbox-label input[type='checkbox'] {
  width: 16px;
  height: 16px;
  accent-color: var(--primary);
}

/* Mobile responsive */
@media (max-width: 768px) {
  .pdf-grouping-options {
    padding: var(--space-md);
  }

  .pdf-checkbox-label {
    font-size: 0.8rem;
  }
}

.pdf-image-count {
  font-size: 0.875rem;
  color: var(--text-secondary);
  font-weight: 500;
}

/* Mobile Responsive */
@media (max-width: 768px) {
  .pdf-dialog-content {
    width: 95vw;
    margin: var(--space-md);
  }

  .pdf-layout-options {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }

  .pdf-dialog-header,
  .pdf-dialog-footer {
    padding: var(--space-md);
  }

  .pdf-layout-option {
    padding: var(--space-md);
  }

  .pdf-dialog-footer {
    flex-direction: column;
    gap: var(--space-md);
    align-items: stretch;
  }

  .pdf-dialog-footer .btn {
    width: 100%;
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .pdf-dialog-content {
    width: 100vw;
    height: 100vh;
    border-radius: 0;
    max-height: none;
  }

  .pdf-option-icon {
    font-size: 1.5rem;
  }

  .pdf-layout-option h4 {
    font-size: 1rem;
  }

  .pdf-layout-option p {
    font-size: 0.8rem;
  }
}

/* 
==================================================
  31. ANALYTICS DASHBOARD SYSTEM (V2 PHASE 2)
==================================================
*/

/* Analytics Layout */
.analytics-content {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0;
}

.analytics-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: var(--space-xl);
  padding: var(--space-lg);
  background: var(--bg-tertiary);
  border-radius: var(--radius-lg);
  border: 1px solid var(--gray-200);
}

.analytics-title h4 {
  color: var(--primary);
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: var(--space-xs);
}

.analytics-description {
  color: var(--text-muted);
  font-size: 0.875rem;
  margin: 0;
}

.analytics-stats {
  display: flex;
  gap: var(--space-lg);
}

.analytics-stats .stat-item {
  text-align: center;
  min-width: 80px;
}

.analytics-stats .stat-value {
  display: block;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: var(--space-xs);
}

.analytics-stats .stat-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Analytics Controls */
.analytics-controls {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
  padding: var(--space-lg);
  background: var(--bg-tertiary);
  border-radius: var(--radius-lg);
  align-items: center;
}

/* No Analytics Message */
.no-analytics-message {
  text-align: center;
  padding: var(--space-2xl) var(--space-lg);
  background: var(--bg-tertiary);
  border-radius: var(--radius-lg);
  border: 2px dashed var(--gray-300);
  margin: var(--space-xl) 0;
}

.no-analytics-content {
  max-width: 400px;
  margin: 0 auto;
}

.no-analytics-icon {
  font-size: 3rem;
  margin-bottom: var(--space-lg);
  opacity: 0.7;
}

.no-analytics-message h3 {
  color: var(--text-primary);
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: var(--space-md);
}

.no-analytics-message p {
  color: var(--text-muted);
  margin-bottom: var(--space-sm);
  line-height: 1.5;
}

.no-analytics-message em {
  color: var(--text-secondary);
  font-size: 0.875rem;
}

/* Charts Grid Layout */
.analytics-charts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: var(--space-xl);
  margin-bottom: var(--space-xl);
}

/* Individual Chart Containers */
.chart-container {
  background: var(--bg-primary);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--gray-200);
  overflow: hidden;
  transition: all 0.2s ease-in-out;
}

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

.chart-container-wide {
  grid-column: span 2;
}

/* Chart Headers */
.chart-header {
  padding: var(--space-lg);
  border-bottom: 1px solid var(--gray-200);
  background: var(--bg-tertiary);
}

.chart-header h5 {
  color: var(--text-primary);
  font-size: 1.125rem;
  font-weight: 600;
  margin: 0 0 var(--space-xs) 0;
}

.chart-header p {
  color: var(--text-muted);
  font-size: 0.875rem;
  margin: 0;
}

/* Chart Wrapper */
.chart-wrapper {
  padding: var(--space-lg);
  position: relative;
  min-height: 300px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.chart-wrapper canvas {
  max-width: 100%;
  height: auto !important;
}

/* Custom Report Builder */
.custom-report-builder {
  padding: var(--space-lg);
}

.report-field-selection {
  margin-bottom: var(--space-lg);
}

.report-field-selection h6 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-md);
}

.report-field-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
}

.report-field-item {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-xs);
  border-radius: var(--radius-sm);
  transition: background-color 0.2s ease;
}

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

.report-field-item input[type='checkbox'] {
  width: 16px;
  height: 16px;
  accent-color: var(--primary);
}

.report-field-item label {
  font-size: 0.875rem;
  color: var(--text-secondary);
  cursor: pointer;
  user-select: none;
}

.report-actions {
  display: flex;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
  flex-wrap: wrap;
}

.custom-report-results {
  min-height: 200px;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  background: var(--bg-secondary);
}

/* Chart Loading State */
.chart-loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 200px;
  color: var(--text-muted);
}

.chart-loading-spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--gray-200);
  border-top: 3px solid var(--primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-bottom: var(--space-md);
}

.chart-loading-text {
  font-size: 0.875rem;
  color: var(--text-muted);
}

/* Chart Error State */
.chart-error {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 200px;
  color: var(--danger);
  text-align: center;
  padding: var(--space-lg);
}

.chart-error-icon {
  font-size: 2rem;
  margin-bottom: var(--space-md);
}

.chart-error-text {
  font-size: 0.875rem;
  margin-bottom: var(--space-sm);
}

.chart-error-details {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-style: italic;
}

/* Responsive Design for Analytics */
@media (max-width: 1200px) {
  .chart-container-wide {
    grid-column: span 1;
  }
}

@media (max-width: 968px) {
  .analytics-header {
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-md);
  }

  .analytics-stats {
    justify-content: space-around;
  }

  .analytics-controls {
    flex-direction: column;
    align-items: stretch;
  }

  .analytics-charts-grid {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .chart-container-wide {
    grid-column: span 1;
  }
}

@media (max-width: 768px) {
  .analytics-stats {
    flex-direction: column;
    gap: var(--space-sm);
    text-align: center;
  }

  .analytics-stats .stat-item {
    min-width: auto;
  }

  .chart-wrapper {
    padding: var(--space-md);
    min-height: 250px;
  }

  .report-field-grid {
    grid-template-columns: 1fr;
  }

  .report-actions {
    flex-direction: column;
  }

  .report-actions .btn {
    width: 100%;
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .analytics-charts-grid {
    gap: var(--space-md);
  }

  .chart-header {
    padding: var(--space-md);
  }

  .chart-wrapper {
    padding: var(--space-sm);
    min-height: 200px;
  }

  .custom-report-builder {
    padding: var(--space-md);
  }
}

/* Dark Mode Support for Charts */
@media (prefers-color-scheme: dark) {
  .chart-container {
    background: var(--bg-secondary);
    border-color: var(--gray-600);
  }

  .chart-header {
    background: var(--bg-tertiary);
    border-color: var(--gray-600);
  }

  .chart-loading-spinner {
    border-color: var(--gray-600);
    border-top-color: var(--accent);
  }
}

/* Print Styles for Analytics */
@media print {
  .analytics-controls,
  .report-actions {
    display: none !important;
  }

  .analytics-charts-grid {
    grid-template-columns: 1fr !important;
    gap: 2rem !important;
  }

  .chart-container {
    page-break-inside: avoid;
    box-shadow: none !important;
    border: 1px solid #ccc !important;
  }

  .chart-wrapper {
    min-height: auto !important;
  }
}

/* Custom Report Export Format Group */
.export-format-group {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

.export-format-group label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  white-space: nowrap;
}

.export-format-group select {
  min-width: 140px;
  padding: 8px 35px 8px 12px;
  border: 1px solid #d1d5db;
  border-radius: 6px;
  background: #ffffff;
  color: #374151;
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
}

.export-format-group select:hover {
  border-color: #9ca3af;
  box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
}

.export-format-group select:focus {
  outline: none;
  border-color: #3b82f6;
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.export-format-group select:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  background-color: #f9fafb;
}

.export-format-group button {
  white-space: nowrap;
}

@media (max-width: 768px) {
  .export-format-group {
    flex-direction: column;
    align-items: stretch;
  }

  .export-format-group select,
  .export-format-group button {
    width: 100%;
  }
}

/* 
==================================================
  32. CHART LIGHTBOX SYSTEM
  Extends Image Lightbox styles for Chart viewing
  Reuses existing lightbox classes for consistency
==================================================
*/

/* 
==================================================
  32. CHART LIGHTBOX SYSTEM
  EXACT copy of Image Lightbox behavior for charts
==================================================
*/

/* Chart lightbox now uses full screen like image lightbox */
#chart-lightbox {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.95);
  display: none;
  z-index: 10000;
  opacity: 0;
  transition: opacity 0.3s ease;
}

#chart-lightbox.active {
  display: flex;
  opacity: 1;
}

#chart-lightbox .lightbox-content {
  width: 95vw; /* Full viewport width */
  height: 95vh; /* Full viewport height */
  max-width: 95vw;
  max-height: 95vh;
  margin: auto;
  display: flex;
  flex-direction: column;
  background: var(--bg-primary);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
}

#chart-lightbox .lightbox-image-container {
  flex: 1;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: var(--bg-secondary);
  min-height: 0; /* Important for flex child */
}

/* Chart-specific styling */
#chart-lightbox .lightbox-status {
  background: var(--primary);
  color: white;
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 500;
}

/* Navigation and zoom controls - same as image viewer */
#chart-lightbox .lightbox-nav {
  background: rgba(0, 0, 0, 0.7);
  color: white;
}

#chart-lightbox .lightbox-nav:hover {
  background: rgba(0, 0, 0, 0.9);
}

#chart-lightbox .lightbox-zoom-controls {
  position: absolute;
  top: var(--space-lg);
  right: var(--space-lg);
  display: flex;
  gap: var(--space-xs);
  z-index: 10002;
}

#chart-lightbox .lightbox-zoom-controls button {
  background: rgba(0, 0, 0, 0.7);
  color: white;
  border: none;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  cursor: pointer;
  transition: all 0.2s ease;
}

#chart-lightbox .lightbox-zoom-controls button:hover {
  background: rgba(0, 0, 0, 0.9);
}

/* Chart click hint */
.analytics-charts-grid canvas {
  transition: opacity 0.2s ease, transform 0.2s ease;
  cursor: pointer;
}

.analytics-charts-grid canvas:hover {
  opacity: 0.9;
  transform: scale(1.02);
}

.chart-container {
  position: relative;
}

.chart-container::after {
  content: '🔍 Click to expand';
  position: absolute;
  top: var(--space-sm);
  right: var(--space-sm);
  background: rgba(37, 99, 235, 0.9);
  color: white;
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  font-size: 0.7rem;
  font-weight: 500;
  opacity: 0;
  transition: opacity 0.2s ease;
  pointer-events: none;
  z-index: 5;
}

.chart-container:hover::after {
  opacity: 1;
}

/* Mobile responsive */
@media (max-width: 768px) {
  .chart-container::after {
    display: none;
  }

  #chart-lightbox .lightbox-zoom-controls {
    flex-direction: column;
    top: var(--space-md);
    right: var(--space-md);
  }

  #chart-lightbox .lightbox-zoom-controls button {
    width: 35px;
    height: 35px;
    font-size: 0.75rem;
    margin-bottom: 2px;
  }
}

/* Force chart lightbox to use proper desktop dimensions */
#chart-lightbox .lightbox-content {
  width: 95vw; /* Use most of screen width */
  height: 95vh; /* Use most of screen height */
  max-width: 95vw;
  max-height: 95vh;
  display: flex;
  flex-direction: column;
}

#chart-lightbox .lightbox-image-container {
  flex: 1;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: var(--bg-secondary);
  min-height: 400px; /* Ensure reasonable minimum */
  padding: 20px;
}

#chart-lightbox .lightbox-image {
  transition: transform 0.3s ease;
  cursor: default;
}

#chart-lightbox .lightbox-header {
  flex-shrink: 0;
  height: auto;
}

#chart-lightbox .lightbox-actions {
  flex-shrink: 0;
  height: auto;
}

/* Ensure image container takes remaining space */
#chart-lightbox .lightbox-image-container {
  flex: 1;
  min-height: 0; /* Important for flex growth */
}

.landing-logo {
  text-align: center;
  margin: 40px 0 20px 0;
  opacity: 0.8;
  transition: opacity 0.3s ease;
}

.landing-logo:hover {
  opacity: 1;
}

.landing-logo img {
  max-width: 200px;
  height: auto;
  filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.1));
}

/* Responsive sizing */
@media (max-width: 768px) {
  .landing-logo img {
    max-width: 150px;
  }

  .landing-logo {
    margin: 30px 0 15px 0;
  }
}

/* 
==================================================
  HELP SYSTEM STYLES
  Added for Help Modal functionality
==================================================
*/

/* Header Layout Enhancement */
.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.header-text {
  flex: 1;
}

/* Help Button in Header */
.help-button {
  background: rgba(255, 255, 255, 0.2);
  color: white;
  border: 1px solid rgba(255, 255, 255, 0.3);
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--radius-md);
  cursor: pointer;
  font-size: 0.875rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  transition: all 0.2s ease;
  backdrop-filter: blur(10px);
}

.help-button:hover {
  background: rgba(255, 255, 255, 0.3);
  border-color: rgba(255, 255, 255, 0.5);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.help-icon {
  font-size: 1rem;
}

/* Help Modal Overlay and Container */
.help-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 1;
  transition: opacity 0.3s ease;
}

.help-modal.hidden {
  display: none;
  opacity: 0;
}

.help-modal-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.8);
  cursor: pointer;
}

/* Help Modal Content */
.help-modal-content {
  position: relative;
  width: 90vw;
  max-width: 1000px;
  height: 85vh;
  background: var(--bg-primary);
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  z-index: 10001;
}

/* Help Modal Header */
.help-modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-lg);
  background: var(--bg-tertiary);
  border-bottom: 1px solid var(--gray-200);
  flex-shrink: 0;
}

.help-modal-header h3 {
  margin: 0;
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-primary);
}

.help-modal-header h3 {
  margin: 0;
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-primary);
}

/* Help Header Actions Container */
.help-header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

/* Documentation Link Styling */
.help-docs-link {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-xs) var(--space-md);
  background: var(--primary);
  color: white;
  text-decoration: none;
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  font-weight: 500;
  transition: all 0.2s ease;
  border: 1px solid var(--primary);
}

.help-docs-link:hover {
  background: var(--primary-hover);
  border-color: var(--primary-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
  color: white; /* Ensure text stays white on hover */
}

.help-docs-link:focus {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

.help-modal-close {
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--text-muted);
  cursor: pointer;
  padding: var(--space-xs);
  border-radius: var(--radius-sm);
  transition: all 0.2s ease;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.help-modal-close:hover {
  background: var(--gray-200);
  color: var(--text-primary);
  transform: scale(1.1);
}

/* Help Modal Body Layout */
.help-modal-body {
  flex: 1;
  display: flex;
  overflow: hidden;
}

/* Help Content Area */
.help-sections {
  flex: 1;
  padding: var(--space-lg);
  overflow-y: auto;
  line-height: 1.6;
}

/* Individual Help Sections */
.help-section {
  display: none;
}

.help-section.active {
  display: block;
}

.help-section h4 {
  color: var(--primary);
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: var(--space-lg);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.help-content {
  color: var(--text-primary);
}

/* Help Content Typography */
.help-content p {
  margin-bottom: var(--space-md);
}

.help-content ol,
.help-content ul {
  margin: var(--space-md) 0;
  padding-left: var(--space-xl);
}

.help-content li {
  margin-bottom: var(--space-sm);
}

.help-content h5 {
  color: var(--text-primary);
  font-size: 1rem;
  font-weight: 600;
  margin: var(--space-lg) 0 var(--space-sm) 0;
}

/* Special Content Sections */
.help-tip {
  background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
  border: 1px solid var(--accent);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  margin: var(--space-lg) 0;
  font-size: 0.875rem;
}

.help-tip strong {
  color: var(--primary);
}

/* Tab Explanations */
.tab-explanation {
  margin-bottom: var(--space-lg);
  padding: var(--space-md);
  border-left: 3px solid var(--primary);
  background: var(--bg-tertiary);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.tab-explanation h5 {
  margin: 0 0 var(--space-sm) 0;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
}

.tab-explanation p {
  margin: 0;
  color: var(--text-secondary);
  font-size: 0.875rem;
}

/* Feature Groups */
.feature-group {
  margin-bottom: var(--space-md);
  padding: var(--space-sm);
  border-radius: var(--radius-md);
  background: var(--bg-tertiary);
}

.feature-group h5 {
  margin: 0 0 var(--space-xs) 0;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--primary);
}

.feature-group p {
  margin: 0;
  font-size: 0.8rem;
  color: var(--text-secondary);
}

/* FAQ Items */
.faq-item {
  margin-bottom: var(--space-lg);
  padding: var(--space-md);
  border-radius: var(--radius-md);
  background: var(--bg-tertiary);
}

.faq-item h5 {
  margin: 0 0 var(--space-sm) 0;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--primary);
}

.faq-item p {
  margin: 0;
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* Help Navigation Sidebar */
.help-navigation {
  width: 200px;
  flex-shrink: 0;
  background: var(--bg-secondary);
  border-left: 1px solid var(--gray-200);
  padding: var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.help-nav-btn {
  padding: var(--space-sm) var(--space-md);
  border: none;
  background: none;
  color: var(--text-secondary);
  text-align: left;
  cursor: pointer;
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  font-weight: 500;
  transition: all 0.2s ease;
}

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

.help-nav-btn.active {
  background: var(--primary);
  color: white;
}

/* Scrollbar Styling */
.help-sections::-webkit-scrollbar {
  width: 6px;
}

.help-sections::-webkit-scrollbar-track {
  background: var(--gray-100);
  border-radius: var(--radius-sm);
}

.help-sections::-webkit-scrollbar-thumb {
  background: var(--gray-400);
  border-radius: var(--radius-sm);
}

.help-sections::-webkit-scrollbar-thumb:hover {
  background: var(--gray-500);
}

/* Mobile Responsive Design */
@media (max-width: 768px) {
  .header-content {
    flex-direction: column;
    text-align: center;
  }

  .help-modal-content {
    width: 100vw;
    height: 100vh;
    border-radius: 0;
  }

  .help-modal-body {
    flex-direction: column;
  }

  .help-navigation {
    width: 100%;
    max-height: 120px;
    overflow-x: auto;
    overflow-y: hidden;
    padding: var(--space-md);
    display: flex;
    flex-direction: row;
    gap: var(--space-sm);
    border-left: none;
    border-top: 1px solid var(--gray-200);
    order: 2;
  }

  .help-nav-btn {
    white-space: nowrap;
    flex-shrink: 0;
  }

  .help-sections {
    order: 1;
    padding: var(--space-md);
  }
}

@media (max-width: 480px) {
  .help-modal-header {
    padding: var(--space-sm) var(--space-md);
  }

  .help-modal-header h3 {
    font-size: 1.25rem;
  }

  /* Stack header elements on mobile */
  .help-modal-header {
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-sm);
  }

  .help-header-actions {
    justify-content: space-between;
    width: 100%;
  }

  .help-docs-link {
    font-size: 0.8rem;
    padding: var(--space-xs) var(--space-sm);
  }

  .help-sections {
    padding: var(--space-sm);
  }

  .help-section h4 {
    font-size: 1.125rem;
  }

  .help-tip {
    padding: var(--space-sm);
    font-size: 0.8rem;
  }

  .tab-explanation,
  .feature-group,
  .faq-item {
    padding: var(--space-sm);
  }
}

/* 
==================================================
  END OF STYLESHEET
  Total sections: 32 
==================================================
*/