/* ========================================
   DATA TABLE TABS
   ======================================== */
.data-tabs-bar {
  display: flex;
  align-items: center;
  gap: 0;
  background: var(--vis-bg-secondary);
  border-bottom: 1px solid var(--workspace-border-muted);
  padding: 0;
  height: 32px;
  min-height: 32px;
  flex-shrink: 0;
}

.data-tabs-container {
  display: flex;
  align-items: center;
  gap: 0;
  overflow-x: auto;
  flex: 1;
  scrollbar-width: none;
  padding: 0 4px;
}

.data-tabs-container::-webkit-scrollbar {
  display: none;
}

.data-tab {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--text-muted);
  font-size: 12px;
  font-weight: 400;
  cursor: grab;
  transition: all 0.15s ease;
  white-space: nowrap;
  position: relative;
  user-select: none;
}

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

.data-tab.active {
  background: transparent;
  color: var(--text-primary);
  font-weight: 500;
  border-bottom: 2px solid rgba(16, 185, 129, 0.8);
}

.data-tab.dragging {
  opacity: 0.5;
  cursor: grabbing;
}

.data-tab.drag-over {
  border-left: 2px solid var(--status-success);
}

.data-tab i {
  font-size: 10px;
  color: inherit;
}

.data-tab-label {
  max-width: 100px;
  overflow: hidden;
  text-overflow: ellipsis;
}

.data-tab-close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 16px;
  height: 16px;
  pointer-events: auto;
  padding: 0;
  margin-left: 2px;
  background: transparent;
  border: none;
  border-radius: 2px;
  color: var(--text-muted);
  font-size: 12px;
  line-height: 1;
  cursor: pointer;
  opacity: 0;
  transition: all 0.15s ease;
}

.data-tab:hover .data-tab-close {
  opacity: 0.7;
}

.data-tab-close:hover {
  background: var(--status-error-bg);
  color: var(--status-error);
  opacity: 1;
}

.data-tab-new {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  padding: 0;
  margin: 2px 4px;
  background: transparent;
  border: none;
  border-radius: 4px;
  color: var(--text-muted);
  font-size: 14px;
  cursor: pointer;
  transition: all 0.15s ease;
  flex-shrink: 0;
}

.data-tab-new:hover {
  background: var(--vis-bg-hover);
  color: var(--text-primary);
}

/* Tab modified indicator */
.data-tab.modified .data-tab-label::after {
  content: " *";
  color: var(--status-warning);
}

/* ========================================
   DATA TABLE STYLING
   ======================================== */

/* Data table container */
.data-table-container {
  overflow: auto;
  height: 100%;
  position: relative;
}

/* Main data table */
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

/* Table cells with borders */
.data-table th,
.data-table td {
  border: 1px solid var(--workspace-border-default);
  padding: 6px 8px;
  text-align: left;
  white-space: nowrap;
  color: var(--text-primary);
}

/* Header cells */
.data-table th {
  background: var(--vis-bg-secondary);
  font-weight: 600;
  position: sticky;
  top: 0;
  z-index: 10;
}

/* Data cells hover */
.data-table td:hover {
  background: var(--vis-bg-hover);
}

/* Row hover */
.data-table tbody tr:hover {
  background: rgba(74, 155, 126, 0.05);
}

/* Alternating row colors (optional subtle effect) */
.data-table tbody tr:nth-child(even) {
  background: rgba(0, 0, 0, 0.02);
}

[data-theme="dark"] .data-table tbody tr:nth-child(even) {
  background: rgba(255, 255, 255, 0.02);
}

/* ========================================================================
   EDITABLE TABLE STYLES
   ======================================================================== */

/* Base table structure */
.editable-table table {
  border-collapse: collapse;
  width: 100%;
}

/* Editable cells */
.editable-table td,
.editable-table th {
  border: 1px solid var(--workspace-border-default);
  padding: 8px;
  outline: none;
  transition:
    background-color 0.15s ease,
    box-shadow 0.15s ease;
  position: relative;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
  color: var(--text-primary);
}

.editable-table td:hover,
.editable-table th:hover {
  background-color: var(--vis-bg-hover) !important;
}

/* Selected cells (not editing) */
.editable-table td.selected,
.editable-table th.selected {
  background-color: rgba(74, 155, 126, 0.08) !important;
  z-index: 1;
}

/* Selection border overlay (dashed animated border) */
.selection-border-overlay {
  position: absolute;
  pointer-events: none;
  border: 2px dashed var(--status-success);
  z-index: 100;
  animation: marching-ants 0.5s linear infinite;
}

@keyframes marching-ants {
  0% {
    border-offset: 0;
  }
  100% {
    border-offset: 8px;
  }
}

/* Fill handle (small square at bottom-right) */
.fill-handle {
  position: absolute;
  width: 8px;
  height: 8px;
  background: var(--status-success);
  border: 1px solid var(--bg-surface);
  cursor: crosshair;
  z-index: 101;
  box-shadow: 0 0 3px rgba(0, 0, 0, 0.3);
}

/* Fill preview (during drag-to-fill) */
.editable-table td.fill-preview {
  background-color: rgba(74, 155, 126, 0.15) !important;
  border: 1px dashed var(--status-success) !important;
}

/* Highlighted headers (row numbers and column headers when selection active) */
.editable-table th.header-highlighted,
.editable-table td.header-highlighted {
  background-color: rgba(74, 155, 126, 0.2) !important;
}

/* Cell in edit mode */
.editable-table [contenteditable="true"] {
  background-color: var(--vis-bg-primary) !important;
  color: var(--text-primary) !important;
  box-shadow: inset 0 0 0 1px rgba(74, 155, 126, 0.5);
  z-index: 2;
  -webkit-user-select: text;
  -moz-user-select: text;
  -ms-user-select: text;
  user-select: text;
}

/* Header cells in editable table */
.editable-table th[contenteditable="true"] {
  font-weight: 600;
  background: var(--vis-bg-secondary);
}

.editable-table th[contenteditable="true"]:focus {
  background: var(--status-success-bg);
}

/* Row and column numbers */
.editable-table .row-number,
.editable-table .row-number-header {
  font-weight: 600;
  font-size: 13px;
  text-align: center;
  cursor: default;
  user-select: none;
  /* Not sticky - scrolls with table content */
}

.editable-table .row-number:hover {
  background: var(--vis-bg-hover) !important;
}

.editable-table th[data-col] {
  text-align: center;
  font-size: 12px;
  position: relative;
  min-width: 40px;
  max-width: 150px;
}

/* Column header text truncation */
.editable-table th[data-col] .col-header-text {
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  padding-right: 8px; /* Space for resize handle */
}

/* Cell text truncation */
.editable-table td[data-col] .cell-text {
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* Ensure cells respect dynamic width */
.editable-table td[data-col] {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* Fixed table layout for consistent column widths */
.editable-table {
  table-layout: fixed;
  width: 100%;
}

/* Row number column - fixed width */
.editable-table .row-number,
.editable-table .row-number-header {
  width: 45px !important;
  min-width: 45px !important;
  max-width: 45px !important;
}

/* Table action buttons */
.btn-add-column,
.btn-add-row,
.btn-delete-row {
  padding: 4px 8px;
  border: 1px solid var(--workspace-border-default);
  background: var(--vis-bg-primary);
  color: var(--text-primary);
  border-radius: 4px;
  cursor: pointer;
  font-size: 14px;
  transition: all 0.2s ease;
}

.btn-add-column:hover,
.btn-add-row:hover {
  background: var(--status-success-bg);
  color: var(--status-success);
  border-color: var(--status-success);
}

.btn-delete-row {
  color: var(--status-error);
  font-weight: bold;
  padding: 2px 8px;
}

.btn-delete-row:hover {
  background: var(--status-error-bg);
  border-color: var(--status-error);
}

/* Active toggle button state */
.ribbon-btn.active {
  background: var(--status-success-bg);
  color: var(--status-success);
  border-color: var(--status-success);
}

/* ========================================================================
   COLUMN RESIZE HANDLES (Excel-like)
   ======================================================================== */

/* Column resize handle - invisible but wide hit area */
.column-resize-handle {
  position: absolute;
  right: -4px; /* Extend beyond border for easier grabbing */
  top: 0;
  bottom: 0;
  width: 8px;
  cursor: col-resize;
  z-index: 10;
  background: transparent;
  transition: background 0.15s ease;
}

/* Visual feedback on hover */
.column-resize-handle:hover {
  background: rgba(74, 155, 126, 0.3);
}

/* Prevent text selection during resize */
body.resizing-column {
  user-select: none !important;
  cursor: col-resize !important;
}

/* Highlight column header during resize */
.editable-table th.resizing {
  background: rgba(74, 155, 126, 0.1) !important;
}

/* ========================================================================
   LIGHT THEME - SOFTER BORDERS
   ======================================================================== */

[data-theme="light"] .data-table th,
[data-theme="light"] .data-table td,
[data-theme="light"] .editable-table th,
[data-theme="light"] .editable-table td {
  border-color: var(--border-muted);
}

[data-theme="light"] .data-table th,
[data-theme="light"] .editable-table th {
  background: var(--workspace-bg-primary);
}

[data-theme="light"] .editable-table .row-number,
[data-theme="light"] .editable-table .row-number-header {
  background: var(--workspace-bg-primary);
  color: var(--text-muted);
}

[data-theme="light"] .data-table tbody tr:nth-child(even) {
  background: rgba(0, 0, 0, 0.015);
}

/* ========================================================================
   DARK THEME OVERRIDES
   ======================================================================== */

[data-theme="dark"] .data-table th,
[data-theme="dark"] .data-table td {
  border-color: var(--workspace-border-muted, #3c3c3c);
}

[data-theme="dark"] .editable-table th,
[data-theme="dark"] .editable-table td {
  border-color: var(--workspace-border-muted, #3c3c3c);
}

[data-theme="dark"] .editable-table [contenteditable="true"] {
  background-color: var(--workspace-bg-primary, #1e1e1e) !important;
}

/* ========================================================================
   ELEMENT-CSV SYNCHRONIZATION HIGHLIGHT
   ======================================================================== */

/* Highlight for columns linked to selected plot element */
.data-table td.element-highlight,
.data-table th.element-highlight,
.editable-table td.element-highlight,
.editable-table th.element-highlight {
  background-color: rgba(255, 193, 7, 0.15) !important;
  box-shadow: inset 0 0 0 2px rgba(255, 193, 7, 0.4);
}

/* Header highlight for element-linked columns */
.data-table th.element-highlight,
.editable-table th.element-highlight {
  background-color: rgba(255, 193, 7, 0.25) !important;
  font-weight: 700;
}

/* Light theme variant */
[data-theme="light"] .data-table td.element-highlight,
[data-theme="light"] .data-table th.element-highlight,
[data-theme="light"] .editable-table td.element-highlight,
[data-theme="light"] .editable-table th.element-highlight {
  background-color: rgba(255, 193, 7, 0.12) !important;
  box-shadow: inset 0 0 0 2px rgba(255, 193, 7, 0.5);
}

[data-theme="light"] .data-table th.element-highlight,
[data-theme="light"] .editable-table th.element-highlight {
  background-color: rgba(255, 193, 7, 0.2) !important;
}