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

:root {
  --color-primary: #0d9488;
  --color-primary-light: #14b8a6;
  --color-bg: #ffffff;
  --color-bg-secondary: #f9fafb;
  --color-text: #111827;
  --color-text-secondary: #4b5563;
  --color-border: #e5e7eb;
  --color-border-strong: #d1d5db;
  --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
}

[data-theme="dark"] {
  --color-primary: #5eead4;
  --color-primary-light: #99f6e4;
  --color-bg: #0f172a;
  --color-bg-secondary: #1e293b;
  --color-text: #f1f5f9;
  --color-text-secondary: #cbd5e1;
  --color-border: #334155;
  --color-border-strong: #475569;
}

html, body {
  height: 100%;
}

body {
  font-family: var(--font-family);
  background-color: var(--color-bg);
  color: var(--color-text);
  display: flex;
  flex-direction: column;
}

.hidden {
  display: none !important;
}

/* Header */
.app-header {
  background-color: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  padding: 0.75rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.logo h1 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-text);
}

.theme-toggle-btn {
  background: none;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  padding: 0.5rem;
  cursor: pointer;
  color: var(--color-text);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
}

.theme-toggle-btn:hover {
  background-color: var(--color-bg-secondary);
  border-color: var(--color-border-strong);
}

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

/* Main Content */
#app {
  flex: 1;
  display: flex;
  flex-direction: column;
}

/* Empty State */
.empty-state {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}

.drop-zone {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 3rem 4rem;
  border: 2px dashed var(--color-border-strong);
  border-radius: 12px;
  background-color: var(--color-bg-secondary);
  text-align: center;
  transition: border-color 0.2s, background-color 0.2s;
  max-width: 500px;
  width: 100%;
}

.drop-zone.drag-over {
  border-color: var(--color-primary);
  background-color: #f0fdfa;
}

.drop-icon {
  margin-bottom: 1.5rem;
}

.drop-zone h2 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 0.5rem;
}

.drop-subtitle {
  color: var(--color-text-secondary);
  margin-bottom: 1rem;
}

.browse-btn {
  background-color: var(--color-primary);
  color: white;
  border: none;
  padding: 0.75rem 1.5rem;
  border-radius: 6px;
  font-size: 1rem;
  font-weight: 500;
  cursor: pointer;
  transition: background-color 0.2s;
}

.browse-btn:hover {
  background-color: var(--color-primary-light);
}

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

.supported-formats {
  margin-top: 1.5rem;
  font-size: 0.875rem;
  color: var(--color-text-secondary);
}

.privacy-notice {
  margin-top: 1rem;
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  text-align: center;
}

/* Database View */
.database-view {
  flex: 1;
  display: flex;
  overflow: hidden;
}

/* Sidebar */
.sidebar {
  width: 250px;
  min-width: 150px;
  max-width: 600px;
  background-color: var(--color-bg-secondary);
  border-right: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  position: relative;
}

.sidebar-header {
  padding: 1rem;
  border-bottom: 1px solid var(--color-border);
}

.sidebar-header h2 {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.table-list {
  list-style: none;
  overflow-y: auto;
  flex: 1;
}

.table-list li {
  padding: 0.75rem 1rem;
  cursor: pointer;
  border-bottom: 1px solid var(--color-border);
  transition: background-color 0.15s;
}

.table-list li:hover {
  background-color: var(--color-border);
}

.table-list li.selected {
  background-color: #e0f2fe;
  border-left: 3px solid var(--color-primary);
}

.table-name {
  font-weight: 500;
  color: var(--color-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.table-row-count,
.table-row-size {
  font-size: 0.75rem;
  color: var(--color-text-secondary);
  margin-left: 0.5rem;
}

.sidebar-resize-handle {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: 5px;
  cursor: ew-resize;
  background-color: transparent;
  z-index: 10;
  transition: background-color 0.2s;
}

.sidebar-resize-handle:hover,
.sidebar-resize-handle:active {
  background-color: var(--color-primary);
}

/* Main Content */
.main-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.content-header {
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--color-border);
  background-color: var(--color-bg);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.file-info {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.save-db-btn {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  border: 1px solid var(--color-border-strong);
  border-radius: 6px;
  background-color: var(--color-bg);
  color: var(--color-text);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: background-color 0.2s, border-color 0.2s;
}

.save-db-btn:hover {
  background-color: var(--color-bg-hover);
  border-color: var(--color-primary);
}

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

.save-db-btn.dirty {
  position: relative;
  border-color: #f59e0b;
  background-color: #fef3c7;
  color: #92400e;
}

.save-db-btn.dirty:hover {
  background-color: #fde68a;
  border-color: #d97706;
}

.save-db-btn.dirty::after {
  content: '';
  position: absolute;
  top: -4px;
  right: -4px;
  width: 10px;
  height: 10px;
  background-color: #f59e0b;
  border-radius: 50%;
  border: 2px solid var(--color-bg);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% {
    transform: scale(1);
    opacity: 1;
  }
  50% {
    transform: scale(1.2);
    opacity: 0.8;
  }
}

/* Dark mode adjustments for dirty state */
[data-theme="dark"] .save-db-btn.dirty {
  background-color: #78350f;
  color: #fef3c7;
  border-color: #f59e0b;
}

[data-theme="dark"] .save-db-btn.dirty:hover {
  background-color: #92400e;
}

.file-name {
  font-weight: 600;
  color: var(--color-text);
}

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

/* Query Editor Panel */
.query-editor-panel {
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--color-border);
  background-color: var(--color-bg);
}

.query-editor-header {
  margin-bottom: 0.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.query-editor-header h3 {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.toggle-query-panel-btn {
  background: none;
  border: 1px solid var(--color-border);
  color: var(--color-text-secondary);
  cursor: pointer;
  padding: 0.25rem;
  border-radius: 0.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
}

.toggle-query-panel-btn:hover {
  background-color: var(--color-bg-secondary);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

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

.query-editor-panel.collapsed .query-editor-content {
  display: none;
}

.query-editor-panel.collapsed .chevron-up-icon {
  display: none;
}

.query-editor-panel.collapsed .chevron-down-icon {
  display: block;
}

.query-editor-content {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.query-editor-wrapper {
  width: 100%;
  min-height: 80px;
  border: 1px solid var(--color-border-strong);
  border-radius: 6px;
  background-color: var(--color-bg);
}

.query-editor-wrapper:focus-within {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 2px rgba(15, 118, 110, 0.1);
}

.query-editor {
  width: 100%;
  min-height: 80px;
  max-height: 400px;
  padding: 0.75rem;
  border: none;
  background-color: transparent;
  color: var(--color-text);
  font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, Courier, monospace;
  font-size: 0.875rem;
  line-height: 1.5;
  white-space: pre;
  overflow: auto;
  outline: none;
}

.query-editor[contenteditable]:empty:before {
  content: attr(data-placeholder);
  color: var(--color-text-secondary);
}

/* SQL Syntax Highlighting */
.sql-keyword {
  color: #0369a1;
  font-weight: 600;
}

.sql-string {
  color: #15803d;
}

.sql-number {
  color: #c026d3;
}

.sql-comment {
  color: var(--color-text-secondary);
  font-style: italic;
}

.sql-operator {
  color: #ea580c;
}

.query-editor-actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.5rem;
}

.run-query-btn {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  border: none;
  border-radius: 6px;
  background-color: var(--color-primary);
  color: white;
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: background-color 0.2s;
}

.run-query-btn:hover {
  background-color: var(--color-primary-light);
}

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

.explain-query-btn {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  border: 1px solid var(--color-border-strong);
  border-radius: 6px;
  background-color: var(--color-bg);
  color: var(--color-text);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: background-color 0.2s, border-color 0.2s;
}

.explain-query-btn:hover {
  background-color: var(--color-bg-secondary);
  border-color: var(--color-primary);
}

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

.explain-results {
  padding: 1rem;
}

.explain-results h4 {
  margin: 0 0 0.75rem 0;
  color: var(--color-text);
  font-size: 0.875rem;
  font-weight: 600;
}

.explain-output {
  margin: 0;
  padding: 1rem;
  background-color: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  font-family: 'Consolas', 'Liberation Mono', 'Menlo', monospace;
  font-size: 0.8125rem;
  line-height: 1.5;
  white-space: pre-wrap;
  word-wrap: break-word;
  color: var(--color-text);
}

/* Query History Dropdown */
.query-history-dropdown {
  position: relative;
}

.history-dropdown-btn {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  border: 1px solid var(--color-border-strong);
  border-radius: 6px;
  background-color: var(--color-bg);
  color: var(--color-text);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: background-color 0.2s, border-color 0.2s;
}

.history-dropdown-btn:hover {
  background-color: var(--color-bg-secondary);
  border-color: var(--color-primary);
}

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

.history-dropdown-menu {
  position: absolute;
  top: calc(100% + 0.5rem);
  right: 0;
  width: 400px;
  max-height: 400px;
  overflow-y: auto;
  background-color: var(--color-bg);
  border: 1px solid var(--color-border-strong);
  border-radius: 8px;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  z-index: 1000;
}

.history-dropdown-menu.hidden {
  display: none;
}

.history-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text-secondary);
}

.clear-history-btn {
  padding: 0.25rem 0.5rem;
  border: 1px solid var(--color-border-strong);
  border-radius: 4px;
  background-color: transparent;
  color: var(--color-text-secondary);
  font-size: 0.75rem;
  font-weight: 500;
  cursor: pointer;
  transition: background-color 0.2s, color 0.2s;
}

.clear-history-btn:hover {
  background-color: var(--color-bg-secondary);
  color: var(--color-text);
}

.history-items {
  max-height: 340px;
  overflow-y: auto;
}

.history-item {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--color-border);
  cursor: pointer;
  transition: background-color 0.2s;
}

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

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

.history-item-text {
  font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, Courier, monospace;
  font-size: 0.813rem;
  color: var(--color-text);
  line-height: 1.5;
  display: block;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.history-empty {
  padding: 2rem 1rem;
  text-align: center;
  color: var(--color-text-secondary);
  font-size: 0.875rem;
}

.run-query-btn svg {
  fill: currentColor;
  stroke: none;
}


.data-viewer {
  flex: 1;
  padding: 1.5rem;
  overflow: auto;
  position: relative;
}

.loader-wrapper {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(255, 255, 255, 0.7);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
}

[data-theme="dark"] .loader-wrapper {
  background-color: rgba(15, 23, 42, 0.7);
}

.loader {
  border: 4px solid var(--color-border);
  border-top: 4px solid var(--color-primary);
  border-radius: 50%;
  width: 40px;
  height: 40px;
  animation: spin 1s linear infinite;
}

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

.query-status {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  font-size: 0.875rem;
  color: var(--color-text-secondary);
}


.placeholder-text {
  color: var(--color-text-secondary);
  text-align: center;
  margin-top: 3rem;
}

/* Table Header Info */
.table-header-info {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
}

.table-header-left {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.table-header-info h3 {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-text);
}

.table-header-info .row-count {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
}

.table-header-info .query-duration {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  margin-left: 0.5rem;
  padding-left: 0.5rem;
  border-left: 1px solid var(--color-border);
}

.export-buttons {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.export-btn {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  border: 1px solid var(--color-border-strong);
  border-radius: 6px;
  background-color: var(--color-bg);
  color: var(--color-text);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: background-color 0.2s, border-color 0.2s;
}

.export-btn:hover {
  background-color: var(--color-bg-secondary);
  border-color: var(--color-primary);
}

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

.table-header-right {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.export-btn svg {
  flex-shrink: 0;
}

/* Data Table */
.table-container {
  overflow-x: auto;
  border: 1px solid var(--color-border);
  border-radius: 8px;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

.data-table th,
.data-table td {
  padding: 0.75rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.data-table th {
  background-color: var(--color-bg-secondary);
  font-weight: 600;
  color: var(--color-text);
  white-space: nowrap;
  vertical-align: top;
  position: sticky;
  top: 0;
  z-index: 10;
}

.data-table th .column-name {
  display: block;
  font-weight: 600;
}

.data-table th .column-type {
  display: block;
  font-size: 0.75rem;
  font-weight: 400;
  color: var(--color-text-secondary);
  margin-top: 0.125rem;
}

.fk-icon {
  display: inline-block;
  vertical-align: middle;
  margin-left: 0.375rem;
  color: var(--color-primary);
  opacity: 0.8;
}

.fk-icon:hover {
  opacity: 1;
}

.fk-cell {
  cursor: pointer;
  color: var(--color-primary);
  text-decoration: underline;
  text-decoration-style: dotted;
  transition: all 0.15s;
}

.fk-cell:hover {
  color: #0284c7;
  text-decoration-style: solid;
  background-color: rgba(3, 105, 161, 0.1);
}

.data-table th.sortable {
  cursor: pointer;
  user-select: none;
  transition: background-color 0.15s;
}

.data-table th.sortable:hover {
  background-color: var(--color-border);
}

.data-table th.sorted {
  background-color: #e0f2fe;
}

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

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

.data-table td {
  color: var(--color-text);
  max-width: 300px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.data-table .null-value {
  color: var(--color-text-secondary);
  font-style: italic;
}

.data-table .blob-value {
  color: var(--color-text-secondary);
  font-style: italic;
}

.blob-badge {
  display: inline-block;
  background-color: #e0e7ff;
  color: #4338ca;
  font-size: 0.7rem;
  font-weight: 600;
  font-style: normal;
  padding: 0.125rem 0.375rem;
  border-radius: 4px;
  margin-right: 0.25rem;
  text-transform: uppercase;
}

.data-table .empty-table {
  text-align: center;
  color: var(--color-text-secondary);
  padding: 2rem;
}

.error-text {
  color: #dc2626;
  text-align: center;
  margin-top: 3rem;
}

.success-text {
  color: #16a34a;
  text-align: center;
  margin-top: 3rem;
}

/* Pagination Controls */
.pagination-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 1rem;
  padding: 0.75rem 1rem;
  background-color: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: 8px;
}

.pagination-info {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
}

.pagination-page-size {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--color-text-secondary);
}

.page-size-select {
  padding: 0.375rem 0.5rem;
  border: 1px solid var(--color-border-strong);
  border-radius: 4px;
  background-color: var(--color-bg);
  color: var(--color-text);
  font-size: 0.875rem;
  cursor: pointer;
}

.page-size-select:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 1px;
}

.pagination-nav {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.pagination-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  padding: 0;
  border: 1px solid var(--color-border-strong);
  border-radius: 4px;
  background-color: var(--color-bg);
  color: var(--color-text);
  font-size: 1rem;
  cursor: pointer;
  transition: background-color 0.15s, border-color 0.15s;
}

.pagination-btn:hover:not(:disabled) {
  background-color: var(--color-bg-secondary);
  border-color: var(--color-primary);
}

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

.pagination-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.page-indicator {
  font-size: 0.875rem;
  color: var(--color-text);
  padding: 0 0.5rem;
}

/* Cell Tooltip */
.cell-tooltip {
  position: fixed;
  background-color: rgba(17, 24, 39, 0.95);
  color: white;
  padding: 0.5rem 0.75rem;
  border-radius: 6px;
  font-size: 0.875rem;
  max-width: 400px;
  word-wrap: break-word;
  z-index: 1000;
  pointer-events: none;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  display: none;
}

/* Quick Filter Input */
.quick-filter-input {
  width: 100%;
  max-width: 400px;
  padding: 0.625rem 1rem;
  margin-bottom: 1rem;
  border: 1px solid var(--color-border-strong);
  border-radius: 6px;
  background-color: var(--color-bg);
  color: var(--color-text);
  font-size: 0.875rem;
  font-family: var(--font-family);
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.quick-filter-input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 2px rgba(15, 118, 110, 0.1);
}

.quick-filter-input::placeholder {
  color: var(--color-text-secondary);
}

.data-table tbody tr.filtered-out {
  display: none;
}

.data-table tbody tr.highlighted-row {
  background-color: rgba(250, 204, 21, 0.25);
  animation: highlightFade 2s ease-in-out;
}

@keyframes highlightFade {
  0% {
    background-color: rgba(250, 204, 21, 0.5);
  }
  100% {
    background-color: rgba(250, 204, 21, 0.15);
  }
}

/* Copy Toast Notification */
.copy-toast {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background-color: rgba(17, 24, 39, 0.95);
  color: white;
  padding: 0.75rem 1.25rem;
  border-radius: 8px;
  font-size: 0.875rem;
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  z-index: 1001;
  display: none;
  align-items: center;
  gap: 0.5rem;
  animation: slideInUp 0.2s ease-out;
}

.copy-toast.show {
  display: flex;
}

@keyframes slideInUp {
  from {
    transform: translateY(100%);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

.copy-toast svg {
  flex-shrink: 0;
}

/* Clickable cell cursor */
.data-table td {
  cursor: pointer;
}

/* Inline cell editing */
.data-table td.editable-cell {
  cursor: text;
}

.data-table td.editable-cell:hover:not(.editing) {
  background-color: var(--color-bg-hover);
  outline: 2px solid var(--color-primary);
  outline-offset: -2px;
}

.data-table td.editing {
  padding: 0.25rem;
  background-color: var(--color-bg);
  position: relative;
}

.cell-edit-input {
  width: calc(100% - 50px);
  padding: 0.5rem;
  border: 2px solid var(--color-primary);
  border-radius: 4px;
  font-family: inherit;
  font-size: inherit;
  background-color: var(--color-bg);
  color: var(--color-text);
  outline: none;
}

.cell-edit-input:focus {
  border-color: var(--color-primary-dark, var(--color-primary));
  box-shadow: 0 0 0 3px var(--color-primary-alpha, rgba(59, 130, 246, 0.2));
}

.cell-edit-input[type="number"] {
  -moz-appearance: textfield;
}

.cell-edit-input[type="number"]::-webkit-inner-spin-button,
.cell-edit-input[type="number"]::-webkit-outer-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

.null-toggle-btn {
  position: absolute;
  right: 4px;
  top: 50%;
  transform: translateY(-50%);
  padding: 0.25rem 0.5rem;
  font-size: 0.7rem;
  font-weight: 600;
  background-color: var(--color-bg-tertiary);
  color: var(--color-text-secondary);
  border: 1px solid var(--color-border);
  border-radius: 3px;
  cursor: pointer;
  text-transform: uppercase;
}

.null-toggle-btn:hover {
  background-color: var(--color-bg-hover);
  border-color: var(--color-border-strong);
}

/* Loading Progress Indicator */
.loading-progress {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2000;
}

.loading-progress-content {
  background-color: var(--color-bg);
  padding: 2rem;
  border-radius: 12px;
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  min-width: 320px;
  max-width: 400px;
}

.loading-progress-text {
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: 1rem;
  text-align: center;
}

.loading-progress-bar {
  width: 100%;
  height: 8px;
  background-color: var(--color-border);
  border-radius: 4px;
  overflow: hidden;
  margin-bottom: 0.75rem;
}

.loading-progress-fill {
  height: 100%;
  background-color: var(--color-primary);
  border-radius: 4px;
  transition: width 0.2s ease-out;
  width: 0%;
}

.loading-progress-percent {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  text-align: center;
}

/* Column-specific filters */
.column-filters-row {
  background-color: var(--color-bg-secondary);
}

.column-filter-cell {
  padding: 0.5rem;
  vertical-align: middle;
  border-bottom: 1px solid var(--color-border-strong);
}

.column-filter-input {
  width: 100%;
  padding: 0.375rem 0.5rem;
  border: 1px solid var(--color-border-strong);
  border-radius: 4px;
  background-color: var(--color-bg);
  color: var(--color-text);
  font-size: 0.8125rem;
  font-family: inherit;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.column-filter-input::placeholder {
  color: var(--color-text-secondary);
  opacity: 0.6;
}

.column-filter-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(20, 184, 166, 0.1);
}

/* Row context menu */
.row-context-menu {
  position: fixed;
  background-color: var(--color-bg);
  border: 1px solid var(--color-border-strong);
  border-radius: 8px;
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  padding: 0.25rem;
  z-index: 1000;
  min-width: 200px;
}

.row-context-menu.hidden {
  display: none;
}

.context-menu-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  width: 100%;
  padding: 0.5rem 0.75rem;
  border: none;
  background-color: transparent;
  color: var(--color-text);
  font-size: 0.875rem;
  text-align: left;
  cursor: pointer;
  border-radius: 4px;
  transition: background-color 0.15s ease;
}

.context-menu-item:hover {
  background-color: var(--color-bg-secondary);
}

.context-menu-item:active {
  background-color: var(--color-bg-tertiary);
}

.context-menu-item svg {
  flex-shrink: 0;
  color: var(--color-text-secondary);
}

/* Schema Modal */
.schema-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
}

.schema-modal.hidden {
  display: none;
}

.schema-modal-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
}

.schema-modal-content {
  position: relative;
  z-index: 1001;
  background-color: var(--color-bg);
  border-radius: 8px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
  max-width: 800px;
  width: 90%;
  max-height: 80vh;
  display: flex;
  flex-direction: column;
}

.schema-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.5rem;
  border-bottom: 1px solid var(--color-border);
}

.schema-modal-header h2 {
  margin: 0;
  font-size: 1.25rem;
  color: var(--color-text);
}

.close-schema-modal-btn {
  background: none;
  border: none;
  padding: 0.5rem;
  cursor: pointer;
  color: var(--color-text-secondary);
  border-radius: 4px;
  transition: background-color 0.15s ease, color 0.15s ease;
}

.close-schema-modal-btn:hover {
  background-color: var(--color-bg-secondary);
  color: var(--color-text);
}

.schema-modal-body {
  padding: 1.5rem;
  overflow-y: auto;
  flex: 1;
}

.schema-section {
  margin-bottom: 2rem;
}

.schema-section:last-child {
  margin-bottom: 0;
}

.schema-section h3 {
  margin: 0 0 1rem 0;
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text);
}

.schema-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

.schema-table th {
  text-align: left;
  padding: 0.75rem;
  background-color: var(--color-bg-secondary);
  color: var(--color-text);
  font-weight: 600;
  border: 1px solid var(--color-border);
}

.schema-table td {
  padding: 0.75rem;
  border: 1px solid var(--color-border);
  color: var(--color-text);
}

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

.column-name-cell,
.fk-column-cell {
  font-family: 'Courier New', monospace;
  font-weight: 500;
  color: var(--color-primary);
}

.column-type-cell {
  font-family: 'Courier New', monospace;
  color: var(--color-text-secondary);
}

.column-constraints-cell {
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
}

.fk-reference-cell {
  font-family: 'Courier New', monospace;
}

.fk-reference-cell strong {
  color: var(--color-primary);
}

.fk-action-cell {
  font-size: 0.8125rem;
  text-transform: uppercase;
  color: var(--color-text-secondary);
}

.schema-empty-state {
  padding: 2rem;
  text-align: center;
  color: var(--color-text-secondary);
  font-style: italic;
}

.view-schema-btn {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  border: 1px solid var(--color-border);
  background-color: var(--color-bg);
  color: var(--color-text);
  font-size: 0.875rem;
  border-radius: 6px;
  cursor: pointer;
  transition: background-color 0.15s ease, border-color 0.15s ease;
}

.view-schema-btn:hover {
  background-color: var(--color-bg-secondary);
  border-color: var(--color-primary);
}

.view-schema-btn svg {
  flex-shrink: 0;
}

/* View Toggle */
.view-toggle {
  display: flex;
  gap: 0.25rem;
  padding: 0.5rem 1rem;
  border-bottom: 1px solid var(--color-border);
  background-color: var(--color-bg-secondary);
}

.view-toggle-btn {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.5rem 0.75rem;
  border: 1px solid transparent;
  border-radius: 6px;
  background-color: transparent;
  color: var(--color-text-secondary);
  font-size: 0.8125rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s ease;
  flex: 1;
  justify-content: center;
}

.view-toggle-btn:hover {
  background-color: var(--color-bg);
  color: var(--color-text);
}

.view-toggle-btn.active {
  background-color: var(--color-bg);
  color: var(--color-primary);
  border-color: var(--color-border-strong);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

.view-toggle-btn svg {
  flex-shrink: 0;
}

/* Schema Diagram View */
.schema-diagram-view {
  flex: 1;
  display: flex;
  flex-direction: column;
  background-color: var(--color-bg-secondary);
  overflow: hidden;
}

.schema-diagram-view.hidden {
  display: none;
}

.diagram-toolbar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--color-border);
  background-color: var(--color-bg);
  z-index: 10;
}

.diagram-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  padding: 0;
  border: 1px solid var(--color-border-strong);
  border-radius: 6px;
  background-color: var(--color-bg);
  color: var(--color-text);
  cursor: pointer;
  transition: all 0.15s ease;
}

.diagram-btn:hover {
  background-color: var(--color-bg-secondary);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

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

.diagram-zoom-level {
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
  min-width: 3rem;
  text-align: center;
}

.diagram-container {
  flex: 1;
  overflow: hidden;
  cursor: grab;
  position: relative;
  background-color: var(--color-bg-secondary);
  background-image:
    radial-gradient(circle, var(--color-border) 1px, transparent 1px);
  background-size: 20px 20px;
}

.diagram-container:active {
  cursor: grabbing;
}

.schema-diagram-svg {
  width: 100%;
  height: 100%;
  display: block;
}

/* Table Card Styles */
.table-card {
  cursor: move;
}

.table-card-body {
  fill: var(--color-bg);
  stroke: var(--color-border-strong);
  stroke-width: 1;
}

.table-card-header {
  fill: var(--color-primary);
}

[data-theme="dark"] .table-card-header {
  fill: #0d9488;
}

.table-card-title {
  fill: white;
  font-size: 13px;
  font-weight: 600;
  font-family: var(--font-family);
}

.table-card-column-text {
  fill: var(--color-text);
  font-size: 12px;
  font-family: var(--font-family);
}

.table-card-column-text.pk {
  font-weight: 600;
}

.table-card-column-text.fk {
  fill: var(--color-primary);
}

.table-card-type-text {
  fill: var(--color-text-secondary);
  font-size: 11px;
  font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, Courier, monospace;
}

.table-card-badge {
  font-size: 9px;
  font-weight: 600;
  font-family: var(--font-family);
}

.table-card-badge.pk-badge {
  fill: #ca8a04;
}

.table-card-badge.fk-badge {
  fill: var(--color-primary);
}

.table-card:hover .table-card-body {
  stroke: var(--color-primary);
  stroke-width: 2;
}

.table-card.selected .table-card-body {
  stroke: var(--color-primary);
  stroke-width: 2;
  filter: drop-shadow(0 4px 6px rgba(0, 0, 0, 0.1));
}

.table-card.dragging {
  opacity: 0.9;
}

/* Relationship Lines */
.relationship-line {
  fill: none;
  stroke: var(--color-border-strong);
  stroke-width: 2;
  transition: stroke 0.15s ease, stroke-width 0.15s ease;
}

.relationship-line:hover {
  stroke-width: 3;
}

.relationship-line.highlighted {
  stroke-width: 3;
}

/* Relationship Colors */
.relationship-color-0 { stroke: #0284c7; }
.relationship-color-1 { stroke: #7c3aed; }
.relationship-color-2 { stroke: #db2777; }
.relationship-color-3 { stroke: #ea580c; }
.relationship-color-4 { stroke: #65a30d; }

.relationship-line.highlighted.relationship-color-0 { stroke: #0284c7; }
.relationship-line.highlighted.relationship-color-1 { stroke: #7c3aed; }
.relationship-line.highlighted.relationship-color-2 { stroke: #db2777; }
.relationship-line.highlighted.relationship-color-3 { stroke: #ea580c; }
.relationship-line.highlighted.relationship-color-4 { stroke: #65a30d; }

/* FK column colors matching relationship lines */
.fk-color-0 { fill: #0284c7 !important; }
.fk-color-1 { fill: #7c3aed !important; }
.fk-color-2 { fill: #db2777 !important; }
.fk-color-3 { fill: #ea580c !important; }
.fk-color-4 { fill: #65a30d !important; }

/* Crow's foot marker colors */
#crow-foot-many, #crow-foot-one {
  stroke: var(--color-border-strong);
}

/* Empty diagram state */
.diagram-empty-state {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  color: var(--color-text-secondary);
}

.diagram-empty-state svg {
  margin-bottom: 1rem;
  opacity: 0.5;
}

.diagram-empty-state p {
  font-size: 1rem;
}

/* Indexes Section */
.indexes-section {
  margin-bottom: 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  background-color: var(--color-bg);
  overflow: hidden;
}

.indexes-toggle-btn {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  width: 100%;
  padding: 0.625rem 0.875rem;
  background: var(--color-bg-secondary);
  border: none;
  cursor: pointer;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text);
  text-align: left;
  transition: background-color 0.15s;
}

.indexes-toggle-btn:hover {
  background-color: var(--color-border);
}

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

.indexes-toggle-btn .chevron-icon {
  flex-shrink: 0;
  transition: transform 0.2s ease;
}

.indexes-section:not(.collapsed) .indexes-toggle-btn .chevron-icon {
  transform: rotate(90deg);
}

.indexes-title {
  flex-grow: 1;
}

.indexes-count {
  background-color: var(--color-border-strong);
  color: var(--color-text-secondary);
  padding: 0.125rem 0.5rem;
  border-radius: 10px;
  font-size: 0.75rem;
  font-weight: 600;
}

.indexes-content {
  padding: 0.75rem;
  border-top: 1px solid var(--color-border);
}

.indexes-section.collapsed .indexes-content {
  display: none;
}

.indexes-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.8125rem;
}

.indexes-table th,
.indexes-table td {
  padding: 0.5rem 0.75rem;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.indexes-table th {
  background-color: var(--color-bg-secondary);
  font-weight: 600;
  color: var(--color-text);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.025em;
}

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

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

.index-name {
  font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, Courier, monospace;
  font-size: 0.8125rem;
  color: var(--color-text);
}

.index-columns {
  font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, Courier, monospace;
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
}

.index-columns em {
  font-style: italic;
  color: var(--color-text-secondary);
  opacity: 0.7;
}

.index-size {
  font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, Courier, monospace;
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
  text-align: right;
}

.index-size-na {
  font-style: italic;
  opacity: 0.5;
}

.index-type-badge {
  display: inline-block;
  padding: 0.125rem 0.5rem;
  border-radius: 4px;
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.025em;
}

.index-type-badge.badge-primary {
  background-color: #dbeafe;
  color: #1e40af;
}

.index-type-badge.badge-unique {
  background-color: #fef3c7;
  color: #92400e;
}

.index-type-badge.badge-index {
  background-color: #e5e7eb;
  color: #4b5563;
}

/* Dark mode support for indexes */
@media (prefers-color-scheme: dark) {
  .index-type-badge.badge-primary {
    background-color: rgba(59, 130, 246, 0.2);
    color: #93c5fd;
  }

  .index-type-badge.badge-unique {
    background-color: rgba(245, 158, 11, 0.2);
    color: #fcd34d;
  }

  .index-type-badge.badge-index {
    background-color: rgba(107, 114, 128, 0.2);
    color: #9ca3af;
  }
}