:root {
  --vg-bg: #fff;
  --vg-fg: #222;
  --vg-muted: #6b7280;
  --vg-border: #e5e7eb;
  --vg-accent: #2563eb;
  --vg-accent-weak: #dbeafe;
  --vg-hover: #f9fafb;
  --vg-radius: 10px;
  --vg-shadow: 0 1px 2px rgba(0,0,0,.06), 0 4px 12px rgba(0,0,0,.06);
  --vg-chip-bg: #f3f4f6;
  --vg-surface-1: #fafafa; /* header */
  --vg-surface-group: #fbfbff; /* group row */
}

/* Dark theme */
.vg-theme-dark {
  --vg-bg: #0b0f1a;
  --vg-fg: #e5e7eb;
  --vg-muted: #9aa3b2;
  --vg-border: #1f2737;
  --vg-accent: #60a5fa;
  --vg-accent-weak: rgba(96,165,250,.25);
  --vg-hover: #121827;
  --vg-shadow: 0 1px 2px rgba(0,0,0,.5), 0 4px 12px rgba(0,0,0,.35);
  --vg-chip-bg: #111827;
  --vg-surface-1: #0f172a;
  --vg-surface-group: #0d1322;
}

.vg-container { font: 14px/1.4 ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial; color: var(--vg-fg); }

.vg-toolbar { background: var(--vg-surface-1); padding: 10px 12px; border: 1px solid var(--vg-border); border-bottom: none; border-radius: var(--vg-radius) var(--vg-radius) 0 0; box-shadow: var(--vg-shadow); }
.vg-toolbar-row { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
.vg-filter { 
  display: flex; 
  gap: 0; 
  align-items: stretch; 
  position: relative; 
  background: #fff;
  border-radius: 8px;
  border: 1px solid var(--vg-border);
  transition: all .2s ease;
}
.vg-filter:hover {
  border-color: var(--vg-accent);
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}
.vg-filter:focus-within {
  border-color: var(--vg-accent);
  box-shadow: 0 0 0 3px var(--vg-accent-weak);
}

.vg-filter-input { 
  padding: 10px 14px; 
  border: none;
  border-radius: 8px 0 0 8px;
  outline: none; 
  min-width: 250px; 
  flex: 1;
  font-size: 14px;
  background: transparent;
  color: var(--vg-fg);
  transition: background-color .2s ease;
}
.vg-filter-input::placeholder {
  color: var(--vg-muted);
}
.vg-filter-input:focus { 
  background: #fafbfc;
}

.vg-regex { color: var(--vg-muted); display: inline-flex; gap: 6px; align-items: center; }
.vg-error { 
  color: #ef4444; 
  font-size: 12px; 
  margin-top: 6px;
  padding: 6px 12px;
  background: #fef2f2;
  border-radius: 6px;
  border: 1px solid #fecaca;
}

/* Filter mode dropdown */
.vg-filter-mode { 
  position: relative; 
  display: flex;
  align-items: stretch;
}
.vg-filter-mode-btn { 
  padding: 10px 14px; 
  border: none;
  background: #f8f9fa; 
  border-radius: 0 8px 8px 0;
  cursor: pointer; 
  display: inline-flex; 
  align-items: center; 
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  transition: all .2s ease;
  min-width: 110px;
  justify-content: space-between;
  user-select: none;
  position: relative;
  color: var(--vg-fg);
  text-transform: uppercase;
  letter-spacing: 0.3px;
}
.vg-filter-mode-btn:hover { 
  background: #e9ecef;
}
.vg-filter-mode-btn:active {
  background: #dee2e6;
}
.vg-filter-mode-btn::before {
  content: "";
  position: absolute;
  left: 0;
  top: 20%;
  bottom: 20%;
  width: 1px;
  background: var(--vg-border);
}
.vg-filter-mode-btn::after { 
  content: "⌄"; 
  font-size: 12px; 
  color: var(--vg-muted); 
  transition: transform .2s ease;
  font-weight: 400;
}
.vg-filter-mode.open .vg-filter-mode-btn {
  background: var(--vg-accent);
  color: white;
}
.vg-filter-mode.open .vg-filter-mode-btn::after { 
  transform: rotate(180deg); 
  color: white;
}

.vg-filter-mode-dropdown {
  position: absolute;
  top: calc(100% + 4px);
  right: 0;
  background: #fff;
  border: 1px solid var(--vg-border);
  border-radius: 8px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.1);
  z-index: 1000;
  min-width: 180px;
  display: none;
  overflow: hidden;
  animation: vg-dropdown-in 0.15s ease-out;
}
.vg-filter-mode.open .vg-filter-mode-dropdown { 
  display: block; 
}

@keyframes vg-dropdown-in {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.vg-filter-mode-option {
  padding: 12px 16px;
  cursor: pointer;
  border-bottom: 1px solid #f1f5f9;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  font-weight: 500;
  transition: all .15s ease;
  color: var(--vg-fg);
  position: relative;
}
.vg-filter-mode-option:last-child { 
  border-bottom: none; 
}
.vg-filter-mode-option:hover { 
  background: #f8f9fa;
  color: var(--vg-accent);
}
.vg-filter-mode-option.active { 
  background: var(--vg-accent);
  color: white;
  font-weight: 600;
}
.vg-filter-mode-option.active::after {
  content: "✓";
  font-size: 14px;
  font-weight: 600;
}

/* Tree filter panel */
.vg-tree-filter-panel {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  right: 0;
  background: #fff;
  border: 1px solid var(--vg-border);
  border-radius: 8px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.1);
  z-index: 999;
  max-height: 400px;
  overflow: hidden;
  display: none;
  min-width: 350px;
  animation: vg-tree-panel-in 0.2s ease-out;
}
.vg-tree-filter-panel.show { 
  display: block; 
}

@keyframes vg-tree-panel-in {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.vg-tree-filter-header {
  padding: 16px 20px;
  border-bottom: 1px solid #e2e8f0;
  font-weight: 600;
  font-size: 14px;
  color: var(--vg-fg);
  background: #f8f9fa;
  border-radius: 8px 8px 0 0;
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 8px;
}
.vg-tree-filter-header::before {
  content: "🔍";
  font-size: 16px;
}

.vg-tree-filter-column {
  border-bottom: 1px solid #f1f5f9;
  transition: background-color .15s ease;
}
.vg-tree-filter-column:last-child { 
  border-bottom: none; 
}
.vg-tree-filter-column:hover {
  background: #fafbfc;
}

.vg-tree-filter-column-name {
  font-weight: 600;
  font-size: 13px;
  padding: 14px 20px;
  color: var(--vg-fg);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 10px;
  transition: all .15s ease;
  background: #fff;
  position: relative;
}
.vg-tree-filter-column-name:hover { 
  background: #f8f9fa;
  color: var(--vg-accent);
}
.vg-tree-filter-column-name::before {
  content: "▶";
  font-size: 10px;
  transition: transform .2s ease;
  color: var(--vg-muted);
  width: 12px;
  text-align: center;
}
.vg-tree-filter-column.expanded .vg-tree-filter-column-name::before {
  transform: rotate(90deg);
  color: var(--vg-accent);
}
.vg-tree-filter-column.expanded .vg-tree-filter-column-name {
  background: #f8f9fa;
  border-bottom: 1px solid #e2e8f0;
  color: var(--vg-accent);
  font-weight: 700;
}

.vg-tree-filter-values {
  display: none !important;
  background: #fafbfc;
  max-height: 200px;
  overflow-y: auto;
  border-top: 1px solid #e2e8f0;
}
.vg-tree-filter-column.expanded .vg-tree-filter-values { 
  display: block !important; 
}

.vg-tree-filter-value {
  padding: 10px 20px 10px 40px;
  cursor: pointer;
  font-size: 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin: 0;
  transition: all .15s ease;
  border-left: 2px solid transparent;
  position: relative;
}
.vg-tree-filter-value:hover { 
  background: #f1f5f9;
  border-left-color: var(--vg-accent);
}
.vg-tree-filter-value.selected { 
  background: var(--vg-accent);
  color: white;
  border-left-color: var(--vg-accent);
  font-weight: 600;
}
.vg-tree-filter-value.selected::after {
  content: "✓";
  font-size: 12px;
  font-weight: 600;
}

.vg-tree-filter-value-count {
  color: var(--vg-muted);
  font-size: 10px;
  background: #e2e8f0;
  padding: 2px 8px;
  border-radius: 12px;
  min-width: 20px;
  text-align: center;
  font-weight: 600;
  border: 1px solid #cbd5e1;
  transition: all .15s ease;
}
.vg-tree-filter-value:hover .vg-tree-filter-value-count {
  background: var(--vg-accent);
  color: white;
  border-color: var(--vg-accent);
}

.vg-groupby select, .vg-pagesize select { padding: 8px 10px; border: 1px solid var(--vg-border); border-radius: 8px; background: #fff; }
.vg-export { margin-left: auto; display: inline-flex; gap: 8px; align-items: center; }
.vg-export select { padding: 8px 10px; border: 1px solid var(--vg-border); border-radius: 8px; background: #fff; }
.vg-btn, .vg-export-btn, .vg-page-btn, .vg-group .vg-group-header { transition: box-shadow .15s ease, border-color .15s ease, background-color .15s ease; }
.vg-export-btn { padding: 8px 12px; border: 1px solid var(--vg-border); background: linear-gradient(#fff, #fafafa); border-radius: 8px; cursor: pointer; }
.vg-export-btn:hover { border-color: var(--vg-accent); box-shadow: 0 0 0 3px var(--vg-accent-weak); }
.vg-export-btn:active { background: linear-gradient(#f7f7f7, #fff); }

.vg-table-wrap { overflow: auto; border: 1px solid var(--vg-border); border-top: none; }
.vg-table { width: 100%; border-collapse: separate; border-spacing: 0; background: var(--vg-bg); }
.vg-table thead { background: var(--vg-surface-1); position: sticky; top: 0; z-index: 1; }
.vg-th { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--vg-border); white-space: nowrap; user-select: none; }
.vg-th.vg-sortable { cursor: pointer; position: relative; padding-right: 24px; }
.vg-th.vg-sortable::after {
  content: '⇵'; position: absolute; right: 8px; top: 50%; transform: translateY(-50%); font-size: 12px; color: var(--vg-muted);
}
.vg-th.vg-asc::after { content: '▲'; color: var(--vg-accent); }
.vg-th.vg-desc::after { content: '▼'; color: var(--vg-accent); }

.vg-td { padding: 10px 12px; border-bottom: 1px solid var(--vg-border); vertical-align: middle; }
.vg-tr:hover { background: var(--vg-hover); }
.vg-num { text-align: right; font-variant-numeric: tabular-nums; }

.vg-img { display: block; max-height: 36px; object-fit: contain; }

.vg-link { color: var(--vg-accent); text-decoration: none; }
.vg-link:hover { text-decoration: underline; }

.vg-btn { padding: 8px 12px; border: 1px solid var(--vg-border); background: linear-gradient(#fff, #fafafa); border-radius: 8px; cursor: pointer; }
.vg-btn:hover { border-color: var(--vg-accent); box-shadow: 0 0 0 3px var(--vg-accent-weak); }
.vg-btn:active { background: linear-gradient(#f7f7f7, #fff); }

.vg-pager { border: 1px solid var(--vg-border); border-top: none; border-radius: 0 0 var(--vg-radius) var(--vg-radius); background: var(--vg-bg); box-shadow: var(--vg-shadow); }
.vg-pager-row { display: flex; align-items: center; justify-content: space-between; padding: 10px 12px; }
.vg-pager-row { gap: 8px; }
.vg-pager-center { flex: 1; display: flex; align-items: center; gap: 10px; justify-content: center; flex-wrap: wrap; }
.vg-pager .vg-cols { position: relative; }
.vg-pager .vg-cols-list { max-height: 240px; overflow: auto; background: var(--vg-bg); border: 1px solid var(--vg-border); border-radius: 8px; padding: 6px; }
.vg-pager-left, .vg-pager-right { display: inline-flex; gap: 6px; }
.vg-page-btn { padding: 6px 10px; border: 1px solid var(--vg-border); background: linear-gradient(#fff, #fafafa); border-radius: 8px; cursor: pointer; }
.vg-page-btn[disabled] { opacity: .5; cursor: not-allowed; }
.vg-page-btn:hover:not([disabled]) { border-color: var(--vg-accent); box-shadow: 0 0 0 3px var(--vg-accent-weak); }
.vg-page-btn:active:not([disabled]) { background: linear-gradient(#f7f7f7, #fff); }
.vg-page-info { color: var(--vg-muted); }
.vg-total { color: var(--vg-muted); }

.vg-empty { padding: 24px; text-align: center; color: var(--vg-muted); }

.vg-group { background: var(--vg-surface-group); }
.vg-group .vg-group-header { display: inline-flex; gap: 8px; align-items: center; padding: 6px 10px; border: 1px solid var(--vg-border); background: linear-gradient(#fff, #fafafa); border-radius: 999px; cursor: pointer; margin: 6px 0; }
.vg-group .vg-group-header:hover { border-color: var(--vg-accent); box-shadow: 0 0 0 3px var(--vg-accent-weak); }
.vg-group .vg-group-header:active { background: linear-gradient(#f7f7f7, #fff); }
.vg-group .vg-group-header .vg-caret {
  width: 0; height: 0; border-left: 6px solid transparent; border-right: 6px solid transparent; border-top: 8px solid var(--vg-accent);
  transform: rotate(0deg); transition: transform .15s ease;
}
.vg-group .vg-group-header.is-collapsed .vg-caret { transform: rotate(-90deg); }
.vg-agg { display: inline-flex; flex-wrap: wrap; gap: 6px; margin-left: 10px; }
.vg-chip { background: var(--vg-chip-bg); border: 1px solid var(--vg-border); padding: 4px 8px; border-radius: 999px; color: #374151; }

/* Tree table */
.vg-tree-th-pad { display: inline-block; width: 18px; }
.vg-tree-cell { white-space: nowrap; }
.vg-tree-toggle { display: inline-flex; align-items: center; justify-content: center; width: 18px; height: 18px; margin-right: 6px; border: none; background: transparent; cursor: pointer; padding: 0; }
.vg-tree-toggle.is-leaf { cursor: default; opacity: .5; }
.vg-tree-toggle .vg-caret { width: 0; height: 0; border-left: 6px solid transparent; border-right: 6px solid transparent; border-top: 8px solid var(--vg-accent); transform: rotate(0deg); transition: transform .15s ease; }
.vg-tree-toggle.is-expanded .vg-caret { transform: rotate(180deg); }
.vg-tree-spacer { display: inline-block; width: 8px; height: 8px; }
.vg-spinner { width: 12px; height: 12px; border: 2px solid var(--vg-border); border-top-color: var(--vg-accent); border-radius: 50%; animation: vgspin .8s linear infinite; }
@keyframes vgspin { to { transform: rotate(360deg); } }

/* Compact density */
.vg-compact .vg-filter-input,
.vg-compact .vg-groupby select,
.vg-compact .vg-pagesize select,
.vg-compact .vg-export select,
.vg-compact .vg-export-btn,
.vg-compact .vg-btn,
.vg-compact .vg-page-btn,
.vg-compact .vg-group .vg-group-header { padding: 4px 8px; border-radius: 6px; }
.vg-compact .vg-toolbar { padding: 6px 8px; }
.vg-compact .vg-toolbar-row { gap: 8px; }
.vg-compact .vg-td { padding: 6px 8px; }
.vg-compact .vg-th { padding: 6px 8px; }
.vg-compact .vg-img { max-height: 28px; }

/* Badges */
.vg-badge { display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: 12px; border: 1px solid var(--vg-border); background: var(--vg-chip-bg); color: inherit; }
.vg-badge.ok { background: #e6f9ed; border-color: #bbf7d0; color: #166534; }
.vg-badge.low { background: #fff7ed; border-color: #fed7aa; color: #9a3412; }
.vg-badge.out { background: #fef2f2; border-color: #fecaca; color: #991b1b; }

/* New Features Styles */

/* Column Resizing */
.vg-resize-handle {
  position: absolute;
  top: 0;
  right: 0;
  width: 6px;
  height: 100%;
  cursor: col-resize;
  background: transparent;
  border-right: 2px solid transparent;
  transition: border-color 0.2s ease;
}

.vg-resize-handle:hover {
  border-right-color: var(--vg-accent);
}

.vg-th {
  position: relative;
}

body.vg-resizing {
  cursor: col-resize !important;
  user-select: none !important;
}

/* Inline Editing */
.vg-edit-input {
  width: 100%;
  padding: 4px 6px;
  border: 2px solid var(--vg-accent);
  border-radius: 4px;
  background: var(--vg-bg);
  color: var(--vg-fg);
  font: inherit;
  outline: none;
}

/* Enhanced Cell Types */
.vg-progress {
  position: relative;
  height: 20px;
  background: var(--vg-border);
  border-radius: 10px;
  overflow: hidden;
  min-width: 60px;
}

.vg-progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--vg-accent), #60a5fa);
  transition: width 0.3s ease;
}

.vg-progress-text {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 12px;
  font-weight: 500;
  color: var(--vg-fg);
  text-shadow: 0 1px 2px rgba(0,0,0,0.1);
}

.vg-rating {
  color: #fbbf24;
  font-size: 16px;
  letter-spacing: 1px;
}

.vg-badge-default { background: var(--vg-chip-bg); border-color: var(--vg-border); }
.vg-badge-success { background: #e6f9ed; border-color: #bbf7d0; color: #166534; }
.vg-badge-warning { background: #fff7ed; border-color: #fed7aa; color: #9a3412; }
.vg-badge-error { background: #fef2f2; border-color: #fecaca; color: #991b1b; }
.vg-badge-info { background: #dbeafe; border-color: #93c5fd; color: #1e40af; }

.vg-color-indicator {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  border: 2px solid var(--vg-border);
  display: inline-block;
  vertical-align: middle;
}

/* Context Menu */
.vg-context-menu {
  background: var(--vg-bg);
  border: 1px solid var(--vg-border);
  border-radius: 8px;
  box-shadow: var(--vg-shadow);
  min-width: 120px;
  padding: 4px 0;
}

.vg-context-menu-item {
  padding: 8px 12px;
  cursor: pointer;
  color: var(--vg-fg);
  transition: background-color 0.15s ease;
}

.vg-context-menu-item:hover {
  background: var(--vg-hover);
}

/* Keyboard Navigation */
.vg-td:focus,
.vg-th:focus {
  outline: 2px solid var(--vg-accent);
  outline-offset: -2px;
  background: var(--vg-accent-weak);
}

/* Pivot Table Styles */
.vg-pivot-controls {
  background: var(--vg-bg);
  border: 1px solid var(--vg-border);
  border-radius: 8px;
  padding: 16px;
  margin-bottom: 16px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.vg-pivot-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 2px solid var(--vg-border);
}

.vg-pivot-header-actions {
  display: flex;
  gap: 8px;
}

.vg-pivot-title h3 {
  margin: 0 0 4px 0;
  color: var(--vg-fg);
  font-size: 18px;
  font-weight: 600;
}

.vg-pivot-title p {
  margin: 0;
  color: var(--vg-muted);
  font-size: 14px;
}

.vg-pivot-exit {
  background: #ff4757 !important;
  color: white !important;
  border: none !important;
  padding: 8px 16px !important;
  border-radius: 6px !important;
  cursor: pointer !important;
  font-weight: 500 !important;
  transition: all 0.2s ease !important;
}

.vg-pivot-exit:hover {
  background: #ff3838 !important;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(255, 71, 87, 0.3);
}

.vg-pivot-workspace {
  display: flex;
  gap: 20px;
}

.vg-pivot-controls.collapsed .vg-pivot-workspace {
  display: none;
}

.vg-pivot-controls.collapsed .vg-pivot-header {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: none;
}

.vg-pivot-fields-panel {
  flex: 0 0 280px;
  background: var(--vg-surface-1);
  border-radius: 8px;
  padding: 16px;
  border: 1px solid var(--vg-border);
}

.vg-pivot-fields-panel h4 {
  margin: 0 0 12px 0;
  color: var(--vg-fg);
  font-size: 14px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.vg-pivot-available-fields {
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-height: 400px;
  overflow-y: auto;
}

.vg-pivot-field-chip {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--vg-bg);
  border: 1px solid var(--vg-border);
  border-radius: 6px;
  padding: 8px 12px;
  cursor: grab;
  transition: all 0.2s ease;
  user-select: none;
}

.vg-pivot-field-chip:hover {
  border-color: var(--vg-primary);
  box-shadow: 0 2px 8px rgba(59, 130, 246, 0.15);
  transform: translateY(-1px);
}

.vg-pivot-field-chip.vg-dragging {
  opacity: 0.5;
  transform: rotate(5deg);
  cursor: grabbing;
}

.vg-field-icon {
  font-size: 16px;
  width: 20px;
  text-align: center;
}

.vg-field-label {
  flex: 1;
  font-weight: 500;
  color: var(--vg-fg);
}

.vg-field-type {
  font-size: 11px;
  background: var(--vg-surface-1);
  color: var(--vg-muted);
  padding: 2px 6px;
  border-radius: 3px;
  text-transform: uppercase;
  font-weight: 600;
}

.vg-pivot-config-panel {
  flex: 1;
}

.vg-pivot-drop-zones {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 20px;
}

.vg-pivot-zone {
  background: var(--vg-bg);
  border: 2px dashed var(--vg-border);
  border-radius: 8px;
  padding: 16px;
  min-height: 120px;
  transition: all 0.2s ease;
}

.vg-pivot-zone.vg-drop-active {
  border-color: var(--vg-primary);
  background: rgba(59, 130, 246, 0.05);
  border-style: solid;
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.vg-pivot-zone-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--vg-border);
}

.vg-pivot-zone-icon {
  font-size: 18px;
}

.vg-pivot-zone-title {
  font-weight: 600;
  color: var(--vg-fg);
  font-size: 14px;
}

.vg-pivot-zone-hint {
  font-size: 12px;
  color: var(--vg-muted);
  margin-left: auto;
}

.vg-pivot-field-list {
  min-height: 60px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.vg-pivot-field-item {
  background: var(--vg-bg);
  border: 1px solid var(--vg-border);
  border-radius: 6px;
  padding: 8px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: grab;
  transition: all 0.2s ease;
}

.vg-pivot-field-item:hover {
  border-color: var(--vg-primary);
  box-shadow: 0 2px 4px rgba(59, 130, 246, 0.1);
}

.vg-pivot-field-item.vg-dragging {
  opacity: 0.5;
  transform: rotate(3deg);
  cursor: grabbing;
}

.vg-field-item-content {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 1;
}

.vg-field-actions {
  display: flex;
  gap: 4px;
}

.vg-field-actions button {
  width: 24px;
  height: 24px;
  border: none;
  border-radius: 4px;
  background: var(--vg-surface-1);
  color: var(--vg-muted);
  cursor: pointer;
  font-size: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
}

.vg-field-actions button:hover:not(:disabled) {
  background: var(--vg-primary);
  color: white;
}

.vg-field-actions button:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.vg-field-remove {
  background: #dc3545 !important;
  color: white !important;
}

.vg-field-remove:hover {
  background: #c82333 !important;
}

.vg-aggregation-select,
.vg-filter-operator {
  background: var(--vg-surface-1);
  border: 1px solid var(--vg-border);
  border-radius: 4px;
  padding: 4px 8px;
  font-size: 12px;
  margin-left: 8px;
  color: var(--vg-fg);
}

.vg-filter-value {
  background: var(--vg-surface-1);
  border: 1px solid var(--vg-border);
  border-radius: 4px;
  padding: 4px 8px;
  font-size: 12px;
  margin-left: 4px;
  width: 100px;
  color: var(--vg-fg);
}

.vg-pivot-empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 24px;
  color: var(--vg-muted);
  text-align: center;
}

.vg-empty-icon {
  font-size: 32px;
  margin-bottom: 8px;
  opacity: 0.5;
}

.vg-empty-text {
  font-size: 14px;
  font-weight: 500;
}

.vg-pivot-actions {
  display: flex;
  gap: 12px;
  padding-top: 16px;
  border-top: 1px solid var(--vg-border);
}

.vg-pivot-actions .vg-btn {
  flex: 1;
  padding: 12px 16px;
  border-radius: 6px;
  border: 1px solid var(--vg-border);
  background: var(--vg-bg);
  color: var(--vg-fg);
  cursor: pointer;
  font-weight: 500;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.vg-pivot-refresh {
  background: #28a745 !important;
  color: white !important;
  border-color: #28a745 !important;
}

.vg-pivot-refresh:hover {
  background: #218838 !important;
  border-color: #1e7e34 !important;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(40, 167, 69, 0.3);
}

.vg-pivot-clear {
  background: #ffc107 !important;
  color: #212529 !important;
  border-color: #ffc107 !important;
}

.vg-pivot-clear:hover {
  background: #e0a800 !important;
  border-color: #d39e00 !important;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(255, 193, 7, 0.3);
}

.vg-pivot-export {
  background: #17a2b8 !important;
  color: white !important;
  border-color: #17a2b8 !important;
}

.vg-pivot-export:hover {
  background: #138496 !important;
  border-color: #117a8b !important;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(23, 162, 184, 0.3);
}

/* Responsive design */
@media (max-width: 1024px) {
  .vg-pivot-workspace {
    flex-direction: column;
  }
  
  .vg-pivot-fields-panel {
    flex: none;
  }
  
  .vg-pivot-drop-zones {
    grid-template-columns: 1fr;
  }
  
  .vg-pivot-actions {
    flex-direction: column;
  }
}

/* Dark theme support for pivot */
.vg-theme-dark .vg-pivot-controls {
  background: var(--vg-bg);
  border-color: var(--vg-border);
}

.vg-theme-dark .vg-pivot-field-section {
  background: var(--vg-surface-1);
  border-color: var(--vg-border);
}

.vg-theme-dark .vg-pivot-field-item {
  background: var(--vg-bg);
  border-color: var(--vg-border);
}

.vg-theme-dark .vg-pivot-agg-select,
.vg-theme-dark .vg-pivot-field-select {
  background: var(--vg-bg);
  border-color: var(--vg-border);
  color: var(--vg-fg);
}

/* Dark theme support for filter components */
.vg-theme-dark .vg-filter {
  background: var(--vg-surface-1);
  border-color: var(--vg-border);
}
.vg-theme-dark .vg-filter:hover {
  border-color: var(--vg-accent);
  box-shadow: 0 2px 8px rgba(0,0,0,0.3);
}
.vg-theme-dark .vg-filter:focus-within {
  border-color: var(--vg-accent);
  box-shadow: 0 0 0 3px var(--vg-accent-weak);
}

.vg-theme-dark .vg-filter-input {
  background: transparent;
  color: var(--vg-fg);
}
.vg-theme-dark .vg-filter-input::placeholder {
  color: var(--vg-muted);
}
.vg-theme-dark .vg-filter-input:focus {
  background: var(--vg-surface-2);
}

.vg-theme-dark .vg-filter-mode-btn {
  background: var(--vg-surface-2);
  color: var(--vg-fg);
}
.vg-theme-dark .vg-filter-mode-btn::before {
  background: var(--vg-border);
}
.vg-theme-dark .vg-filter-mode-btn:hover {
  background: var(--vg-surface-1);
}
.vg-theme-dark .vg-filter-mode.open .vg-filter-mode-btn {
  background: var(--vg-accent);
  color: white;
}

.vg-theme-dark .vg-filter-mode-dropdown,
.vg-theme-dark .vg-tree-filter-panel {
  background: var(--vg-surface-1);
  border-color: var(--vg-border);
  box-shadow: 0 4px 16px rgba(0,0,0,0.4);
}

.vg-theme-dark .vg-filter-mode-option {
  color: var(--vg-fg);
  border-bottom-color: var(--vg-border);
}
.vg-theme-dark .vg-filter-mode-option:hover {
  background: var(--vg-surface-2);
}
.vg-theme-dark .vg-filter-mode-option.active {
  background: var(--vg-accent);
}

.vg-theme-dark .vg-tree-filter-header {
  background: var(--vg-surface-2);
  color: var(--vg-fg);
  border-bottom-color: var(--vg-border);
}

.vg-theme-dark .vg-tree-filter-column {
  border-bottom-color: var(--vg-border);
}
.vg-theme-dark .vg-tree-filter-column:hover {
  background: var(--vg-surface-2);
}

.vg-theme-dark .vg-tree-filter-column-name {
  color: var(--vg-fg);
  background: var(--vg-surface-1);
}
.vg-theme-dark .vg-tree-filter-column-name:hover {
  background: var(--vg-surface-2);
}
.vg-theme-dark .vg-tree-filter-column.expanded .vg-tree-filter-column-name {
  background: var(--vg-surface-2);
  border-bottom-color: var(--vg-border);
}

.vg-theme-dark .vg-tree-filter-values {
  background: var(--vg-bg);
  border-top-color: var(--vg-border);
}

.vg-theme-dark .vg-tree-filter-value:hover {
  background: var(--vg-surface-2);
}
.vg-theme-dark .vg-tree-filter-value.selected {
  background: var(--vg-accent);
}

.vg-theme-dark .vg-tree-filter-value-count {
  background: var(--vg-surface-2);
  color: var(--vg-muted);
  border-color: var(--vg-border);
}
.vg-theme-dark .vg-tree-filter-value:hover .vg-tree-filter-value-count {
  background: var(--vg-accent);
  color: white;
  border-color: var(--vg-accent);
}

.vg-theme-dark .vg-error {
  color: #f87171;
  background: rgba(248, 113, 113, 0.1);
  border-color: #f87171;
}