/* ==========================================================================
   CSS CUSTOM VARIABLES & COLOR SCHEMES (IDGen Studio)
   ========================================================================== */

:root {
  /* Dashboard Light Theme Default Colors */
  --bg-primary: #f8fafc;
  --bg-secondary: #ffffff;
  --bg-tertiary: #f1f5f9;
  --bg-hover: #e2e8f0;
  
  --text-main: #1e293b;
  --text-muted: #64748b;
  --text-inverse: #ffffff;
  
  --border-color: #cbd5e1;
  --border-focus: #3b82f6;
  
  --accent-color: #2563eb;
  --accent-light: #dbeafe;
  --success: #16a34a;
  --warning: #ea580c;
  --danger: #dc2626;
  
  --sidebar-width: 280px;
  --header-height: 70px;
  --transition-speed: 0.3s;
  --card-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
  --glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.07);
}

/* Dark Theme Variables */
[data-theme="dark"] {
  --bg-primary: #0f172a;
  --bg-secondary: #1e293b;
  --bg-tertiary: #334155;
  --bg-hover: #475569;
  
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-inverse: #0f172a;
  
  --border-color: #475569;
  --border-focus: #60a5fa;
  
  --accent-color: #3b82f6;
  --accent-light: #1e3a8a;
  
  --card-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.3), 0 10px 10px -5px rgba(0, 0, 0, 0.3);
  --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
}

/* ==========================================================================
   RESET & FOUNDATIONS
   ========================================================================== */

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

body {
  font-family: 'Inter', sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-main);
  line-height: 1.5;
  overflow-x: hidden;
  transition: background-color var(--transition-speed), color var(--transition-speed);
}

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

/* ==========================================================================
   APP SHELL / LAYOUT SYSTEM
   ========================================================================== */

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

/* Sidebar Dashboard Navigation */
.app-sidebar {
  width: var(--sidebar-width);
  background-color: var(--bg-secondary);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  z-index: 100;
  transition: background-color var(--transition-speed), border-color var(--transition-speed);
}

.sidebar-brand {
  height: var(--header-height);
  padding: 0 24px;
  display: flex;
  align-items: center;
  gap: 12px;
  border-bottom: 1px solid var(--border-color);
}

.brand-icon {
  font-size: 24px;
  color: var(--accent-color);
  animation: pulse 2s infinite;
}

.brand-text h2 {
  font-size: 18px;
  font-weight: 800;
  letter-spacing: -0.5px;
}

.brand-text span {
  font-size: 11px;
  font-weight: 500;
  color: var(--text-muted);
  display: block;
  margin-top: -3px;
}

.sidebar-nav {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
}

/* Accordion Component */
.accordion-item {
  border: 1px solid var(--border-color);
  border-radius: 8px;
  margin-bottom: 12px;
  overflow: hidden;
  background-color: var(--bg-primary);
}

.accordion-header {
  width: 100%;
  padding: 12px 16px;
  background: none;
  border: none;
  display: flex;
  align-items: center;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-main);
  cursor: pointer;
  text-align: left;
  gap: 12px;
  transition: background-color 0.2s;
}

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

.accordion-header i {
  color: var(--text-muted);
  width: 16px;
  text-align: center;
}

.accordion-header .arrow {
  margin-left: auto;
  font-size: 12px;
  transition: transform 0.2s;
}

.accordion-item.active .accordion-header {
  background-color: var(--bg-tertiary);
  border-bottom: 1px solid var(--border-color);
}

.accordion-item.active .accordion-header .arrow {
  transform: rotate(180deg);
}

.accordion-content {
  padding: 16px;
  display: none;
  background-color: var(--bg-secondary);
}

.accordion-item.active .accordion-content {
  display: block;
}

/* Inputs & Form Groups */
.form-group {
  margin-bottom: 12px;
}

.form-group label {
  display: block;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 4px;
  color: var(--text-muted);
}

.form-group input[type="text"],
.form-group textarea,
.form-select,
.form-textarea {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  background-color: var(--bg-primary);
  color: var(--text-main);
  font-size: 13px;
  outline: none;
  transition: border-color 0.2s;
}

.form-group input[type="text"]:focus,
.form-group textarea:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--border-focus);
}

/* Color Pickers */
.color-picker-row {
  display: flex;
  gap: 12px;
  margin-bottom: 12px;
}

.color-picker-group {
  flex: 1;
}

.color-input-wrapper {
  display: flex;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  overflow: hidden;
}

.color-input-wrapper input[type="color"] {
  width: 32px;
  height: 32px;
  border: none;
  padding: 0;
  background: none;
  cursor: pointer;
}

.color-input-wrapper input[type="text"] {
  border: none;
  padding: 0 8px;
  width: calc(100% - 32px);
  background: var(--bg-primary);
  color: var(--text-main);
  font-size: 12px;
  outline: none;
  font-family: monospace;
}

/* Compact File Uploader */
.file-upload-compact {
  position: relative;
}

.file-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.file-label {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px;
  border: 1px dashed var(--border-color);
  border-radius: 6px;
  cursor: pointer;
  font-size: 12px;
  font-weight: 500;
  color: var(--text-muted);
  background-color: var(--bg-primary);
  transition: background-color 0.2s, border-color 0.2s;
}

.file-label:hover {
  background-color: var(--bg-hover);
  border-color: var(--border-focus);
}

.file-label i {
  font-size: 14px;
}

/* Fields list in Sidebar */
.fields-list-item {
  display: flex;
  align-items: center;
  padding: 8px 10px;
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  margin-bottom: 6px;
  font-size: 12px;
}

.fields-list-item .drag-handle {
  cursor: grab;
  color: var(--text-muted);
  margin-right: 8px;
}

.fields-list-item .field-icon {
  margin-right: 8px;
  color: var(--accent-color);
  width: 14px;
  text-align: center;
}

.fields-list-item .field-name {
  font-weight: 600;
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.fields-list-item .btn-edit-field {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 2px 6px;
  border-radius: 4px;
}

.fields-list-item .btn-edit-field:hover {
  background-color: var(--bg-hover);
  color: var(--text-main);
}

/* Sidebar Footer */
.sidebar-footer {
  padding: 16px;
  border-top: 1px solid var(--border-color);
}

/* Main Panel */
.app-main {
  margin-left: var(--sidebar-width);
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  padding: 0;
}

/* Header Navbar */
.app-header {
  height: var(--header-height);
  background-color: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: background-color var(--transition-speed), border-color var(--transition-speed);
}

.app-header h1 {
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -0.5px;
}

.header-actions {
  display: flex;
  gap: 12px;
}

.status-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
}

.status-badge.matched {
  background-color: rgba(22, 163, 74, 0.1);
  color: var(--success);
}
.status-badge.matched .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--success);
}

.status-badge.unmatched {
  background-color: rgba(234, 88, 12, 0.1);
  color: var(--warning);
}
.status-badge.unmatched .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--warning);
}

/* Navigation Tabs Bar */
.tabs-container {
  background-color: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  padding: 0 24px;
}

.tab-list {
  display: flex;
  gap: 8px;
}

.tab-button {
  background: none;
  border: none;
  padding: 14px 16px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
  border-bottom: 3px solid transparent;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: all 0.2s;
}

.tab-button:hover {
  color: var(--text-main);
  background-color: var(--bg-primary);
}

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

.tab-button i {
  font-size: 14px;
}

/* Tab Pane Contents */
.tab-content-container {
  padding: 24px;
  flex: 1;
  overflow-y: auto;
}

.tab-pane {
  display: none;
  animation: fadeIn 0.4s ease;
}

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

/* ==========================================================================
   BUTTONS & GLOBAL COMPONENTS
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  outline: none;
  border: 1px solid transparent;
}

.btn-primary {
  background-color: var(--accent-color);
  color: var(--text-inverse);
}
.btn-primary:hover {
  background-color: #1d4ed8;
}

.btn-secondary {
  background-color: var(--bg-tertiary);
  color: var(--text-main);
  border-color: var(--border-color);
}
.btn-secondary:hover {
  background-color: var(--bg-hover);
}

.btn-danger {
  background-color: var(--danger);
  color: #ffffff;
}
.btn-danger:hover {
  background-color: #b91c1c;
}

.btn-success {
  background-color: var(--success);
  color: #ffffff;
}
.btn-success:hover {
  background-color: #15803d;
}

.btn-sm {
  padding: 6px 12px;
  font-size: 12px;
  border-radius: 4px;
}

.btn-block {
  display: flex;
  width: 100%;
}

.btn-icon {
  width: 36px;
  height: 36px;
  padding: 0;
  border-radius: 50%;
}

/* ==========================================================================
   TAB 1: LIVE PREVIEW & EDIT VIEWPORT
   ========================================================================== */

.preview-layout {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 24px;
  align-items: start;
}

/* Centered Viewer Box */
.preview-card-viewport {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 32px 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  box-shadow: var(--glass-shadow);
}

.canvas-holder {
  padding: 10px;
  background: radial-gradient(circle, var(--bg-tertiary) 0%, var(--bg-hover) 100%);
  border-radius: 16px;
  border: 1px solid var(--border-color);
  margin-bottom: 20px;
  box-shadow: inset 0 2px 8px rgba(0,0,0,0.05);
}

.preview-navigation-controls {
  display: flex;
  align-items: center;
  gap: 16px;
}

.navigation-info {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
}

/* Right Side: Quick Form Details Editor */
.preview-edit-form {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 24px;
  box-shadow: var(--glass-shadow);
}

.card-detail-editor-header {
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 16px;
  margin-bottom: 20px;
}

.card-detail-editor-header h3 {
  font-size: 16px;
  font-weight: 700;
}

.card-detail-editor-header p {
  font-size: 12px;
  color: var(--text-muted);
}

.editor-fields-scroller {
  max-height: 380px;
  overflow-y: auto;
  padding-right: 6px;
  margin-bottom: 20px;
}

.action-buttons-row {
  display: flex;
  gap: 12px;
  border-top: 1px solid var(--border-color);
  padding-top: 20px;
}

.action-buttons-row .btn {
  flex: 1;
}

/* ==========================================================================
   TAB 2: DATA TABLE / SPREADSHEET LAYOUT
   ========================================================================== */

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

.left-actions, .right-actions {
  display: flex;
  gap: 10px;
}

.spreadsheet-container {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  overflow-x: auto;
  max-height: 500px;
  box-shadow: var(--card-shadow);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 13px;
}

.data-table th {
  background-color: var(--bg-tertiary);
  color: var(--text-main);
  padding: 12px 16px;
  font-weight: 700;
  border-bottom: 2px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 10;
  white-space: nowrap;
}

.data-table td {
  padding: 8px 16px;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-main);
}

.data-table tbody tr {
  transition: background-color 0.15s;
}

.data-table tbody tr:hover {
  background-color: var(--bg-primary);
}

.data-table tbody tr.selected {
  background-color: var(--accent-light);
}

.cell-editable {
  border: 1px solid transparent;
  padding: 4px 8px;
  border-radius: 4px;
  outline: none;
  min-width: 100px;
}

.cell-editable:focus {
  background-color: var(--bg-secondary);
  border-color: var(--border-focus);
  box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.2);
}

.table-img-preview {
  width: 32px;
  height: 32px;
  border-radius: 4px;
  object-fit: cover;
  border: 1px solid var(--border-color);
}

.badge-photo {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  border-radius: 12px;
  font-size: 11px;
  font-weight: 600;
}

.badge-photo.bound {
  background-color: rgba(22, 163, 74, 0.1);
  color: var(--success);
}

.badge-photo.unbound {
  background-color: rgba(239, 68, 68, 0.1);
  color: var(--danger);
}

.action-icon {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 4px;
  font-size: 14px;
  transition: all 0.15s;
}

.action-icon:hover {
  color: var(--accent-color);
  background-color: var(--bg-hover);
}

.action-icon.trash-row:hover {
  color: var(--danger);
}

/* ==========================================================================
   TAB 3: PHOTO BINDING MANAGER
   ========================================================================== */

.photos-layout {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 24px;
  align-items: start;
}

.photos-sidebar {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 20px;
  box-shadow: var(--glass-shadow);
}

.photos-sidebar h3 {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 4px;
}

.photos-sidebar .description {
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 20px;
}

.photo-dropzone {
  border: 2px dashed var(--border-color);
  border-radius: 8px;
  padding: 30px 16px;
  text-align: center;
  cursor: pointer;
  background-color: var(--bg-primary);
  transition: all 0.2s;
  margin-bottom: 20px;
}

.photo-dropzone:hover, .photo-dropzone.dragover {
  border-color: var(--border-focus);
  background-color: rgba(59, 130, 246, 0.05);
}

.drop-icon {
  font-size: 32px;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.photo-dropzone h4 {
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 2px;
}

.photo-dropzone span {
  font-size: 11px;
  color: var(--text-muted);
  display: block;
}

.photo-dropzone em {
  font-size: 9px;
  font-style: normal;
  color: var(--text-muted);
  display: block;
  margin-top: 6px;
}

.mapping-config-card {
  border-top: 1px solid var(--border-color);
  padding-top: 20px;
}

.mapping-config-card h4 {
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 12px;
}

.summary-line {
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  margin-bottom: 6px;
}

.text-success { color: var(--success); }
.text-warning { color: var(--warning); }

/* Photo Gallery Grid */
.photos-grid-area {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 24px;
  box-shadow: var(--glass-shadow);
  min-height: 480px;
  display: flex;
  flex-direction: column;
}

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

.grid-header h3 {
  font-size: 16px;
  font-weight: 700;
}

.grid-filters {
  display: flex;
  gap: 6px;
}

.btn-filter {
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 4px 12px;
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
  color: var(--text-muted);
  transition: all 0.2s;
}

.btn-filter:hover {
  background-color: var(--bg-hover);
  color: var(--text-main);
}

.btn-filter.active {
  background-color: var(--accent-color);
  color: #ffffff;
  border-color: var(--accent-color);
}

.photo-cards-wrapper {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
  gap: 16px;
  flex: 1;
}

.photo-card {
  border: 1px solid var(--border-color);
  border-radius: 8px;
  overflow: hidden;
  background-color: var(--bg-primary);
  display: flex;
  flex-direction: column;
  position: relative;
  transition: transform 0.2s, box-shadow 0.2s;
}

.photo-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.photo-card-img-wrap {
  width: 100%;
  height: 120px;
  overflow: hidden;
  background-color: #000;
  display: flex;
  align-items: center;
  justify-content: center;
}

.photo-card-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.photo-card-info {
  padding: 8px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.photo-card-name {
  font-size: 11px;
  font-weight: 700;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  color: var(--text-main);
}

.photo-match-tag {
  font-size: 9px;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: 4px;
  text-align: center;
}

.photo-match-tag.matched {
  background-color: rgba(22, 163, 74, 0.1);
  color: var(--success);
}

.photo-match-tag.unmatched {
  background-color: rgba(234, 88, 12, 0.1);
  color: var(--warning);
}

.photo-card-delete-btn {
  position: absolute;
  top: 4px;
  right: 4px;
  background-color: rgba(0,0,0,0.5);
  border: none;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 10px;
  opacity: 0;
  transition: opacity 0.2s;
}

.photo-card:hover .photo-card-delete-btn {
  opacity: 1;
}

.photo-card-delete-btn:hover {
  background-color: rgba(220, 38, 38, 0.9);
}

.empty-state {
  grid-column: 1 / -1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: var(--text-muted);
  padding: 80px 20px;
}

.empty-state i {
  font-size: 48px;
  margin-bottom: 16px;
}

/* ==========================================================================
   TAB 4: BULK EXPORT & PRINT LAYOUTS
   ========================================================================== */

.export-tab-layout {
  display: grid;
  grid-template-columns: 380px 1fr;
  gap: 24px;
  align-items: start;
}

.export-options-panel {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 24px;
  box-shadow: var(--glass-shadow);
}

.export-options-panel h3 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 4px;
}

.export-options-panel p {
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 20px;
}

.export-control-grid {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 24px;
}

.inline-checkbox {
  display: flex;
  align-items: center;
  gap: 8px;
}

.inline-checkbox input[type="checkbox"] {
  width: 16px;
  height: 16px;
  cursor: pointer;
}

.inline-checkbox label {
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  margin: 0;
  text-transform: none;
}

.export-actions-row {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

/* Export Progress Bar */
.progress-bar-container {
  margin-top: 20px;
  border-top: 1px solid var(--border-color);
  padding-top: 20px;
}

.progress-info {
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  font-weight: 600;
  margin-bottom: 6px;
}

.progress-bar-track {
  height: 8px;
  background-color: var(--bg-tertiary);
  border-radius: 4px;
  overflow: hidden;
}

.progress-bar-fill {
  height: 100%;
  background-color: var(--accent-color);
  width: 0%;
  transition: width 0.1s ease;
}

/* Sheets Preview Panel */
.export-sheets-preview {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 24px;
  box-shadow: var(--glass-shadow);
  min-height: 480px;
}

.sheets-header {
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 16px;
  margin-bottom: 24px;
}

.sheets-header h3 {
  font-size: 16px;
  font-weight: 700;
}

.sheets-header .sub {
  font-size: 12px;
  color: var(--text-muted);
}

.sheets-wrapper {
  display: flex;
  flex-direction: column;
  gap: 32px;
  align-items: center;
}

/* A4 Sheet Digital Mockup */
.a4-sheet-mockup {
  width: 595px; /* Proportionate width for screen view (A4 ratio) */
  height: 842px; /* Proportionate height */
  background-color: #ffffff;
  box-shadow: 0 4px 20px rgba(0,0,0,0.15);
  border: 1px solid #cbd5e1;
  position: relative;
  display: grid;
  padding: 20px;
  box-sizing: border-box;
  overflow: hidden;
}

/* Grid Layout definitions for Sheet */
.a4-sheet-mockup.grid-3x3 {
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: repeat(3, 1fr);
  gap: 10px;
}

.a4-sheet-mockup.grid-2x4 {
  grid-template-columns: repeat(2, 1fr);
  grid-template-rows: repeat(4, 1fr);
  gap: 15px 10px;
}

.a4-sheet-mockup.grid-2x3 {
  grid-template-columns: repeat(2, 1fr);
  grid-template-rows: repeat(3, 1fr);
  gap: 20px 10px;
}

.a4-sheet-mockup.grid-1x1 {
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Scaled card container wrapper inside print layouts */
.sheet-card-cell {
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: visible;
}

/* Crop lines indicators */
.sheet-card-cell.crop-marks::before,
.sheet-card-cell.crop-marks::after {
  content: '';
  position: absolute;
  pointer-events: none;
}

/* Crop lines implementation in CSS */
.sheet-card-cell.crop-marks {
  border: 1px dashed rgba(0,0,0,0.15);
}

/* Card scaling on mockup screen */
.a4-sheet-mockup .id-card {
  transform: scale(0.52); /* Fits the cards nicely inside 595px mockup width */
  transform-origin: center center;
  box-shadow: none;
  border: 1px solid #cbd5e1;
}

/* ==========================================================================
   PIXEL-PERFECT CARD REPLICA TEMPLATE DESIGN
   ========================================================================== */

.id-card {
  --primary-color: #0a3161;
  --secondary-color: #008000;
  --highlight-color: #d00000;
  --card-radius: 12px;
  
  width: 320px;
  height: 500px;
  background-color: #ffffff;
  border-radius: var(--card-radius);
  position: relative;
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(0,0,0,0.1);
  box-sizing: border-box;
  user-select: none;
  flex-shrink: 0;
  text-align: left;
}

/* Card Vector SVG overlay background */
.card-vector-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  pointer-events: none;
}

/* Header Text details */
.card-header-block {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 110px;
  z-index: 2;
  display: flex;
  padding: 12px 14px;
  box-sizing: border-box;
}

.card-logo-container {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  border: 2px solid var(--secondary-color);
  background-color: #ffffff;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 4px rgba(0,0,0,0.15);
  margin-top: 4px;
}

.card-logo-container img {
  width: calc(100% - 4px);
  height: calc(100% - 4px);
  border-radius: 50%;
  object-fit: cover;
}

.card-school-info {
  flex: 1;
  padding-left: 8px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  text-align: center;
}

.card-school-name {
  font-family: 'Playfair Display', serif;
  font-size: 26px;
  font-weight: 900;
  color: var(--primary-color);
  margin: 0;
  line-height: 1.0;
  letter-spacing: 1px;
}

.card-school-subtitle {
  font-size: 9.5px;
  font-weight: 800;
  color: var(--secondary-color);
  margin: 2px 0 0 0;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

/* Header Separator with center circle */
.card-school-separator {
  width: 80%;
  height: 1px;
  background-color: var(--secondary-color);
  margin: 4px 0;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.dot-separator {
  width: 4px;
  height: 4px;
  background-color: var(--secondary-color);
  border-radius: 50%;
  position: absolute;
}

.card-school-address {
  font-size: 8px;
  font-weight: 700;
  color: var(--primary-color);
  margin: 0;
  line-height: 1.2;
}

/* Photo block container */
.card-photo-block {
  position: absolute;
  top: 112px;
  left: 0;
  right: 0;
  display: flex;
  justify-content: center;
  z-index: 2;
}

.card-photo-frame {
  width: 125px;
  height: 145px;
  border: 1px solid #94a3b8;
  border-radius: 12px;
  overflow: hidden;
  background-color: #f1f5f9;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1px;
}

.card-photo-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 10px;
}

/* Student name badge slanted parallelogram */
.card-name-badge-block {
  position: absolute;
  top: 268px;
  left: 0;
  right: 0;
  display: flex;
  justify-content: center;
  z-index: 2;
}

.name-badge-wrapper {
  display: flex;
  transform: skewX(-15deg);
  background-color: var(--primary-color);
  box-shadow: 0 3px 6px rgba(0,0,0,0.15);
  overflow: hidden;
}

.name-badge-wing-left,
.name-badge-wing-right {
  width: 8px;
  background-color: var(--secondary-color);
  flex-shrink: 0;
}

.name-badge-body {
  padding: 5px 24px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.unskew-text {
  transform: skewX(15deg);
  display: inline-block;
  color: #ffffff;
  font-size: 19px;
  font-weight: 800;
  letter-spacing: 1px;
  text-transform: uppercase;
}

/* Dynamic Detail rows list */
.card-details-list {
  position: absolute;
  top: 318px;
  left: 20px;
  right: 20px;
  z-index: 2;
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.card-detail-row {
  display: flex;
  align-items: center;
  padding: 5px 0;
  border-bottom: 1.5px solid #eaeaea;
}

.card-detail-row:last-child {
  border-bottom: none;
}

.card-detail-icon {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background-color: var(--primary-color);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 9px;
  margin-right: 8px;
  flex-shrink: 0;
}

.card-detail-label {
  font-size: 11.5px;
  font-weight: 700;
  color: #334155;
  width: 90px;
  text-align: left;
}

.card-detail-colon {
  font-size: 12px;
  font-weight: 800;
  color: #334155;
  width: 14px;
  text-align: center;
}

.card-detail-value {
  font-size: 12.5px;
  font-weight: 800;
  color: var(--primary-color);
  text-align: left;
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.card-detail-value.highlight-active {
  color: var(--highlight-color);
}

/* Principal section & descriptions */
.card-footer-block {
  position: absolute;
  bottom: 22px;
  left: 0;
  right: 0;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.card-signature-wrap {
  height: 30px;
  margin-bottom: 2px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.card-signature-wrap img {
  max-height: 100%;
  object-fit: contain;
}

.card-principal-title {
  font-size: 8px;
  font-weight: 800;
  color: var(--primary-color);
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.card-principal-desc {
  font-size: 6.5px;
  font-weight: 700;
  color: var(--primary-color);
  line-height: 1.2;
  margin-top: 1px;
  text-transform: uppercase;
}

/* ==========================================================================
   MODAL WINDOW DIALOGS
   ========================================================================== */

.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(4px);
  z-index: 200;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
  animation: fadeIn 0.2s ease;
}

.modal-backdrop.active {
  display: flex;
}

.modal-box {
  width: 100%;
  max-width: 600px;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  box-shadow: var(--card-shadow);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  animation: slideUp 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.modal-box.compact {
  max-width: 420px;
}

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

.modal-header h3 {
  font-size: 16px;
  font-weight: 700;
}

.modal-close {
  background: none;
  border: none;
  font-size: 24px;
  cursor: pointer;
  color: var(--text-muted);
}
.modal-close:hover {
  color: var(--text-main);
}

.modal-body {
  padding: 20px;
  overflow-y: auto;
  max-height: 400px;
}

.modal-body p {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.modal-footer {
  padding: 14px 20px;
  background-color: var(--bg-tertiary);
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: flex-end;
  gap: 12px;
}

/* ==========================================================================
   ANIMATIONS & TRANSITIONS
   ========================================================================== */

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideUp {
  from { transform: translateY(12px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

@keyframes pulse {
  0% { transform: scale(1); }
  50% { transform: scale(1.05); }
  100% { transform: scale(1); }
}

/* ==========================================================================
   PRINT LAYOUT SYSTEM (@media print)
   ========================================================================== */

.print-only {
  display: none;
}

@media print {
  /* Hide the rest of the application layout */
  .no-print {
    display: none !important;
  }
  
  /* Reset document defaults */
  html, body {
    background-color: #ffffff !important;
    color: #000000 !important;
    margin: 0 !important;
    padding: 0 !important;
    width: 210mm !important;
    height: 297mm !important;
    -webkit-print-color-adjust: exact !important;
    print-color-adjust: exact !important;
  }

  .print-only {
    display: block !important;
  }

  /* Paper sheet sizing (strict A4) */
  .print-sheet-page {
    width: 210mm !important;
    height: 297mm !important;
    padding: 10mm !important;
    box-sizing: border-box !important;
    page-break-after: always !important;
    overflow: hidden !important;
    background-color: #ffffff !important;
    display: grid !important;
  }

  /* Grid Layout mappings during printing */
  .print-sheet-page.grid-3x3 {
    grid-template-columns: repeat(3, 1fr) !important;
    grid-template-rows: repeat(3, 1fr) !important;
    gap: 8mm 6mm !important;
  }

  .print-sheet-page.grid-2x4 {
    grid-template-columns: repeat(2, 1fr) !important;
    grid-template-rows: repeat(4, 1fr) !important;
    gap: 12mm 15mm !important;
  }

  .print-sheet-page.grid-2x3 {
    grid-template-columns: repeat(2, 1fr) !important;
    grid-template-rows: repeat(3, 1fr) !important;
    gap: 18mm 15mm !important;
  }

  .print-sheet-page.grid-1x1 {
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
  }

  /* Target scaling card box wrapper */
  .print-card-cell-wrapper {
    width: 100% !important;
    height: 100% !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    position: relative !important;
  }

  /* Crop marks inside cells */
  .print-card-cell-wrapper.crop-marks-active {
    border: 0.1mm dashed #cbd5e1 !important;
  }

  /* Exact scaling representation on physical sheet */
  .print-card-cell-wrapper .id-card {
    transform: scale(0.6375) !important; /* Scales 320px width down to exactly 54mm */
    transform-origin: center center !important;
    box-shadow: none !important;
    border: 0.2mm solid #a1a1a1 !important;
    page-break-inside: avoid !important;
  }
}