/* ==========================================================================
   MS WORD ONLINE - RIBBON UI & BACKSTAGE STYLES
   Office 365 Fluent Ribbon Navigation, Command Groups & Menus
   ========================================================================== */

/* Ribbon Container */
.ribbon-container {
  background-color: var(--bg-ribbon);
  border-bottom: 1px solid var(--border-default);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  z-index: 5000;
  position: relative;
  box-shadow: 0 1px 3px rgba(0,0,0,0.06);
}

/* Ribbon Tabs Bar */
.ribbon-tabs {
  display: flex;
  align-items: center;
  height: var(--ribbon-tabs-height);
  padding: 0 8px;
  background-color: var(--bg-ribbon);
  border-bottom: 1px solid #e1dfdd;
  gap: 2px;
  overflow-x: auto;
}

/* File Tab Button (Backstage trigger) */
.ribbon-tab-btn.file-tab {
  background-color: var(--ms-word-blue);
  color: #ffffff;
  font-weight: 600;
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
  padding: 0 16px;
  height: 32px;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: background-color var(--transition-fast);
}

.ribbon-tab-btn.file-tab:hover {
  background-color: var(--ms-word-dark-blue);
}

/* Standard Ribbon Tab Button */
.ribbon-tab-btn {
  background: transparent;
  border: none;
  color: var(--text-primary);
  font-size: 13px;
  font-weight: 500;
  padding: 0 14px;
  height: 32px;
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

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

.ribbon-tab-btn.active {
  color: var(--ms-word-blue);
  font-weight: 600;
  background-color: #ffffff;
}

.ribbon-tab-btn.active::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  right: 0;
  height: 3px;
  background-color: var(--ms-word-blue);
  border-radius: 3px 3px 0 0;
}

.ribbon-tab-btn.ai-tab {
  color: #7c3aed;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 4px;
}

.ribbon-tab-btn.ai-tab svg {
  stroke: #7c3aed;
  width: 14px;
  height: 14px;
}

.ribbon-tab-btn.ai-tab.active {
  color: #7c3aed;
}

.ribbon-tab-btn.ai-tab.active::after {
  background-color: #7c3aed;
}

/* Ribbon Content Body - Overflow Visible so dropdowns never get clipped */
.ribbon-content {
  height: var(--ribbon-content-height);
  display: flex;
  align-items: stretch;
  padding: 4px 10px;
  background-color: #ffffff;
  overflow-x: auto;
  overflow-y: visible;
  position: relative;
}

.ribbon-panel {
  display: none;
  align-items: stretch;
  gap: 6px;
  height: 100%;
}

.ribbon-panel.active {
  display: flex;
}

/* Ribbon Command Group */
.ribbon-group {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 2px 8px 2px 4px;
  border-right: 1px solid #edebe9;
  flex-shrink: 0;
  position: relative;
}

.ribbon-group:last-child {
  border-right: none;
}

.ribbon-group-content {
  display: flex;
  align-items: center;
  gap: 4px;
  flex: 1;
}

.ribbon-group-row {
  display: flex;
  align-items: center;
  gap: 3px;
}

.ribbon-group-column {
  display: flex;
  flex-direction: column;
  gap: 3px;
  justify-content: center;
}

.ribbon-group-title {
  font-size: 10.5px;
  color: var(--text-secondary);
  text-align: center;
  padding-top: 2px;
  font-weight: 500;
  text-transform: capitalize;
}

/* Ribbon Buttons */
.ribbon-btn {
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 3px 6px;
  font-size: 12px;
  font-family: inherit;
  transition: all var(--transition-fast);
  position: relative;
  white-space: nowrap;
}

.ribbon-btn:hover {
  background-color: var(--bg-hover);
  border-color: #e1dfdd;
}

.ribbon-btn:active, .ribbon-btn.active {
  background-color: #c7e0f4;
  border-color: #0078d4;
  color: #106ebe;
}

.ribbon-btn.large {
  flex-direction: column;
  gap: 3px;
  padding: 6px 10px;
  height: 64px;
  min-width: 52px;
  justify-content: center;
}

.ribbon-btn.large svg {
  width: 22px;
  height: 22px;
}

.ribbon-btn.large span {
  font-size: 11px;
  text-align: center;
}

.ribbon-btn.small {
  width: 26px;
  height: 26px;
  padding: 0;
}

.ribbon-btn.small svg {
  width: 15px;
  height: 15px;
}

.ribbon-btn.medium {
  height: 26px;
  padding: 0 6px;
  gap: 4px;
}

.ribbon-btn.medium svg {
  width: 15px;
  height: 15px;
}

/* Dropdown Selectors inside Ribbon */
.ribbon-select {
  height: 26px;
  border: 1px solid #d1d5db;
  border-radius: var(--radius-sm);
  background-color: #ffffff;
  color: var(--text-primary);
  font-size: 12px;
  font-family: inherit;
  padding: 0 6px;
  outline: none;
  cursor: pointer;
  transition: border-color var(--transition-fast);
}

.ribbon-select:hover {
  border-color: #8a8886;
}

.ribbon-select:focus {
  border-color: var(--ms-word-blue);
  box-shadow: 0 0 0 1px var(--ms-word-blue);
}

.font-family-select {
  width: 130px;
}

.font-size-select {
  width: 52px;
}

/* Color Picker Trigger Buttons */
.color-picker-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2px;
  position: relative;
}

.color-bar {
  width: 14px;
  height: 3.5px;
  margin-top: 1px;
  border-radius: 1px;
  background-color: #000000;
}

.highlight-color-bar {
  background-color: #ffff00;
}

/* Styles Gallery inside Home Tab */
.styles-gallery {
  display: flex;
  align-items: center;
  gap: 4px;
  height: 58px;
}

.style-tile {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-width: 68px;
  height: 56px;
  border: 1px solid #edebe9;
  border-radius: var(--radius-sm);
  background: #ffffff;
  cursor: pointer;
  padding: 4px;
  transition: all var(--transition-fast);
}

.style-tile:hover {
  border-color: var(--ms-word-blue);
  background-color: var(--bg-hover);
}

.style-tile.active {
  border-color: var(--ms-word-blue);
  background-color: var(--ms-word-ultralight-blue);
}

.style-tile-preview {
  font-weight: 600;
  font-size: 14px;
}

.style-tile-name {
  font-size: 10px;
  color: var(--text-secondary);
  margin-top: 2px;
}

/* ==========================================================================
   DROPDOWN MENUS (Color Palettes, Table Grid, Margins, etc.)
   ========================================================================== */
.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  background: #ffffff;
  border: 1px solid #c8c6c4;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-dropdown);
  padding: 6px;
  z-index: 10000;
  display: none;
  min-width: 170px;
}

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

.dropdown-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  font-size: 12.5px;
  color: var(--text-primary);
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast);
  white-space: nowrap;
}

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

.dropdown-item svg {
  width: 16px;
  height: 16px;
  color: var(--text-secondary);
}

.dropdown-divider {
  height: 1px;
  background-color: #edebe9;
  margin: 4px 0;
}

/* Color Palette Picker Popup */
.color-palette-grid {
  display: grid;
  grid-template-columns: repeat(10, 18px);
  gap: 4px;
  padding: 6px;
}

.color-swatch {
  width: 18px;
  height: 18px;
  border-radius: 2px;
  border: 1px solid rgba(0,0,0,0.15);
  cursor: pointer;
  transition: transform 0.1s ease;
}

.color-swatch:hover {
  transform: scale(1.2);
  z-index: 2;
  box-shadow: var(--shadow-sm);
}

/* Table Grid Picker Popup */
.table-grid-picker {
  padding: 8px;
  min-width: 200px;
}

.table-grid-matrix {
  display: grid;
  grid-template-columns: repeat(10, 18px);
  grid-template-rows: repeat(8, 18px);
  gap: 3px;
  margin-bottom: 8px;
}

.table-grid-cell {
  width: 18px;
  height: 18px;
  border: 1px solid #d1d5db;
  background-color: #f9fafb;
  cursor: pointer;
  border-radius: 1px;
}

.table-grid-cell.highlighted {
  background-color: var(--ms-word-ultralight-blue);
  border-color: var(--ms-word-blue);
}

.table-grid-caption {
  font-size: 11px;
  color: var(--text-secondary);
  text-align: center;
  font-weight: 500;
}

/* ==========================================================================
   BACKSTAGE FILE MENU (OFFICE 365 FULLSCREEN MODAL)
   ========================================================================== */
#backstage-menu {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(2px);
  z-index: 99999;
  display: none;
}

#backstage-menu.show {
  display: flex;
}

.backstage-container {
  display: flex;
  width: 100%;
  height: 100%;
  background: #ffffff;
  animation: slideBackstage 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes slideBackstage {
  from { transform: translateX(-40px); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

.backstage-sidebar {
  width: 240px;
  background-color: var(--ms-word-blue);
  color: #ffffff;
  display: flex;
  flex-direction: column;
  padding: 16px 0;
  flex-shrink: 0;
}

.backstage-back-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 20px;
  background: transparent;
  border: none;
  color: #ffffff;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  margin-bottom: 12px;
  transition: background var(--transition-fast);
}

.backstage-back-btn:hover {
  background-color: rgba(255, 255, 255, 0.15);
}

.backstage-back-btn svg {
  width: 20px;
  height: 20px;
  stroke: currentColor;
}

.backstage-nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 24px;
  color: rgba(255, 255, 255, 0.9);
  font-size: 13.5px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.backstage-nav-item:hover {
  background-color: rgba(255, 255, 255, 0.15);
  color: #ffffff;
}

.backstage-nav-item.active {
  background-color: rgba(255, 255, 255, 0.25);
  color: #ffffff;
  font-weight: 600;
}

.backstage-nav-item svg {
  width: 18px;
  height: 18px;
  stroke: currentColor;
}

.backstage-content {
  flex: 1;
  padding: 32px 48px;
  overflow-y: auto;
  background-color: #f8f9fa;
}

.backstage-section {
  display: none;
  max-width: 960px;
}

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

.backstage-title {
  font-size: 24px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.backstage-subtitle {
  font-size: 13.5px;
  color: var(--text-secondary);
  margin-bottom: 24px;
}

/* Template Cards inside Backstage New */
.template-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 20px;
  margin-top: 16px;
}

.template-card {
  background: #ffffff;
  border: 1px solid #d1d5db;
  border-radius: var(--radius-md);
  padding: 12px;
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.template-card:hover {
  border-color: var(--ms-word-blue);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.template-preview-box {
  width: 100%;
  height: 180px;
  background: #fdfdfd;
  border: 1px solid #e5e7eb;
  border-radius: var(--radius-sm);
  margin-bottom: 10px;
  display: flex;
  flex-direction: column;
  padding: 12px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.template-name {
  font-weight: 600;
  font-size: 13px;
  color: var(--text-primary);
}

/* Saved Documents List */
.saved-docs-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 16px;
}

.saved-doc-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: #ffffff;
  padding: 12px 16px;
  border: 1px solid #e5e7eb;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.saved-doc-item:hover {
  border-color: var(--ms-word-blue);
  box-shadow: var(--shadow-sm);
}

.doc-info-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.doc-icon-badge {
  width: 36px;
  height: 36px;
  background-color: var(--ms-word-ultralight-blue);
  color: var(--ms-word-blue);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
}

.doc-icon-badge svg {
  width: 20px;
  height: 20px;
}

.doc-meta-title {
  font-weight: 600;
  font-size: 14px;
}

.doc-meta-date {
  font-size: 11.5px;
  color: var(--text-secondary);
  margin-top: 2px;
}

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

.doc-action-btn {
  background: transparent;
  border: none;
  padding: 6px;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  cursor: pointer;
  transition: background var(--transition-fast);
}

.doc-action-btn:hover {
  background: var(--bg-hover);
  color: var(--ms-word-blue);
}

.doc-action-btn.delete:hover {
  color: var(--status-error);
}