/* ============================================================
   Data Explorer — Admin Parquet Workbench
   ============================================================ */

.de-header-titles {
  display: flex;
  flex-direction: column;
  gap: 4px;
  align-items: flex-start;
}
.de-header-titles h1 {
  margin: 0;
}
.de-link-catalog {
  font-size: 13px;
  font-weight: 500;
  color: var(--accent);
  text-decoration: none;
}
.de-link-catalog:hover {
  text-decoration: underline;
}

.de-page-header {
  align-items: flex-start;
}

/* Layout */
.de-layout {
  display: flex;
  gap: 0;
  height: calc(100vh - 100px);
  min-height: 500px;
}

/* File sidebar */
.de-sidebar {
  width: 280px;
  min-width: 240px;
  background: var(--bg-secondary);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  border-radius: var(--radius) 0 0 var(--radius);
  overflow: hidden;
}

.de-sidebar-header {
  padding: 12px;
  border-bottom: 1px solid var(--border);
}

.de-search {
  width: 100%;
  padding: 8px 12px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: var(--font-sm);
  outline: none;
  transition: border-color 0.2s;
}
.de-search:focus {
  border-color: var(--accent);
}
.de-search::placeholder {
  color: var(--text-muted);
}

.de-file-tree {
  flex: 1;
  overflow-y: auto;
  padding: 8px 0;
}

.de-file-tree::-webkit-scrollbar { width: 6px; }
.de-file-tree::-webkit-scrollbar-track { background: transparent; }
.de-file-tree::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }

/* Directory groups */
.de-dir-group {}
.de-dir-header {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  cursor: pointer;
  font-size: var(--font-sm);
  font-weight: 600;
  color: var(--text-secondary);
  user-select: none;
  transition: background 0.15s;
}
.de-dir-header:hover {
  background: var(--bg-card);
}
.de-dir-arrow {
  font-size: 10px;
  width: 14px;
  text-align: center;
  color: var(--text-muted);
}
.de-dir-name { flex: 1; }
.de-dir-count {
  font-size: var(--font-2xs);
  color: var(--text-muted);
  background: var(--bg-card);
  padding: 1px 6px;
  border-radius: 10px;
}

.de-file-list {
  display: none;
}
.de-dir-group.open .de-file-list {
  display: block;
}

/* File items */
.de-file-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 5px 12px 5px 28px;
  cursor: pointer;
  font-size: var(--font-xs);
  color: var(--text-secondary);
  transition: all 0.15s;
  border-left: 2px solid transparent;
}
.de-file-item:hover {
  background: var(--bg-card);
  color: var(--text-primary);
}
.de-file-item.selected {
  background: rgba(59, 130, 246, 0.1);
  border-left-color: var(--accent);
  color: var(--text-primary);
}

.de-file-icon {
  font-size: 11px;
  width: 20px;
  text-align: center;
  flex-shrink: 0;
}
.de-file-icon.parquet { color: var(--accent); }
.de-file-icon.json { color: var(--warning); }
.de-file-icon.csv { color: var(--success); }
.de-file-icon.npy { color: var(--purple); }

.de-file-name {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.de-file-meta {
  font-size: var(--font-2xs);
  color: var(--text-muted);
  white-space: nowrap;
  font-family: 'JetBrains Mono', monospace;
}

/* File count badge */
.de-file-count {
  font-size: var(--font-xs);
  color: var(--text-muted);
  background: var(--bg-card);
  padding: 4px 12px;
  border-radius: 20px;
  font-family: 'JetBrains Mono', monospace;
}

/* Main workspace */
.de-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
  background: var(--bg-primary);
}

/* Tabs */
.de-tabs {
  display: flex;
  gap: 0;
  border-bottom: 2px solid var(--border);
  padding: 0 16px;
  background: var(--bg-secondary);
}
.de-tab {
  padding: 10px 20px;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  color: var(--text-muted);
  font-weight: 500;
  cursor: pointer;
  font-size: var(--font-sm);
  transition: all 0.15s;
}
.de-tab:hover {
  color: var(--text-secondary);
}
.de-tab.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.de-tab-content {
  display: none;
  flex: 1;
  overflow: hidden;
}
.de-tab-content.active {
  display: flex;
  flex-direction: column;
}

/* Query area */
.de-query-area {
  display: flex;
  flex-direction: column;
  border-bottom: 1px solid var(--border);
}

.de-editor-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 16px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
}
.de-hint {
  font-size: var(--font-2xs);
  color: var(--text-muted);
}
.de-hint code {
  background: var(--bg-card);
  padding: 1px 5px;
  border-radius: 3px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
}
.de-editor-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.de-select {
  padding: 5px 10px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: var(--font-xs);
  cursor: pointer;
}

.de-editor-wrap {
  position: relative;
}

.de-editor {
  width: 100%;
  min-height: 160px;
  max-height: 300px;
  padding: 16px;
  background: var(--bg-card);
  border: none;
  color: var(--text-primary);
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  line-height: 1.6;
  resize: vertical;
  outline: none;
  tab-size: 2;
}
.de-editor::placeholder {
  color: var(--text-muted);
  opacity: 0.5;
}

/* Results area */
.de-results-area {
  flex: 1;
  overflow: auto;
  padding: 0;
}

/* Placeholder */
.de-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 60px 20px;
  color: var(--text-muted);
  text-align: center;
  flex: 1;
}
.de-placeholder svg {
  margin-bottom: 16px;
  opacity: 0.3;
}
.de-placeholder p {
  font-size: var(--font-base);
  margin-bottom: 4px;
}
.de-placeholder .de-sub {
  font-size: var(--font-xs);
  opacity: 0.7;
}

/* Tables */
.de-table-wrap {
  overflow: auto;
  max-height: calc(100vh - 400px);
}

.de-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--font-xs);
}
.de-table th {
  position: sticky;
  top: 0;
  background: var(--bg-secondary);
  padding: 8px 12px;
  text-align: left;
  font-weight: 600;
  font-size: var(--font-2xs);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
  border-bottom: 2px solid var(--border);
  white-space: nowrap;
  z-index: 1;
}
.de-table td {
  padding: 6px 12px;
  border-bottom: 1px solid var(--border);
  max-width: 300px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.de-table tbody tr:hover {
  background: var(--bg-card);
}

.de-results-table td {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
}

.row-num {
  color: var(--text-muted);
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  text-align: right;
  width: 40px;
  min-width: 40px;
}

.mono {
  font-family: 'JetBrains Mono', monospace;
}

.col-name {
  font-weight: 600;
  color: var(--accent-light);
  cursor: pointer;
}
.col-name:hover {
  text-decoration: underline;
}

/* Type color coding */
.type-numeric { color: var(--cyan); }
.type-string { color: var(--success); }
.type-bool { color: var(--purple); }
.type-temporal { color: var(--warning); }
.type-other { color: var(--text-secondary); }

.samples code {
  background: var(--bg-tertiary);
  padding: 1px 5px;
  border-radius: 3px;
  font-size: 11px;
  color: var(--text-secondary);
}

.de-null {
  color: var(--text-muted);
  font-style: italic;
  opacity: 0.5;
}

/* Fill bar in stats */
.de-fill-bar {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 3px;
  font-size: 11px;
  font-family: 'JetBrains Mono', monospace;
  font-weight: 600;
  background: linear-gradient(90deg, var(--fill-color) var(--fill), transparent var(--fill));
}
.fill-full { --fill-color: rgba(16, 185, 129, 0.2); color: var(--success); }
.fill-high { --fill-color: rgba(16, 185, 129, 0.15); color: var(--success); }
.fill-mid { --fill-color: rgba(245, 158, 11, 0.15); color: var(--warning); }
.fill-low { --fill-color: rgba(239, 68, 68, 0.15); color: var(--error); }

/* Schema header */
.de-schema-header {
  padding: 16px;
  border-bottom: 1px solid var(--border);
}
.de-schema-header h3 {
  font-size: var(--font-base);
  font-weight: 600;
  margin-bottom: 6px;
  font-family: 'JetBrains Mono', monospace;
  color: var(--text-primary);
}
.de-schema-meta {
  display: flex;
  gap: 16px;
  font-size: var(--font-xs);
  color: var(--text-muted);
}
.de-schema-meta span {
  display: flex;
  align-items: center;
  gap: 4px;
}

.de-schema-table {
  margin: 0;
}

.de-json-keys {
  padding: 16px;
  font-size: var(--font-sm);
}
.de-json-keys code {
  background: var(--bg-card);
  padding: 2px 6px;
  border-radius: 3px;
  font-size: 12px;
}

/* Query status bar */
.de-query-status {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 8px 16px;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  font-size: var(--font-xs);
  color: var(--text-muted);
}
.de-rewritten {
  background: rgba(245, 158, 11, 0.1);
  color: var(--warning);
  padding: 2px 8px;
  border-radius: 3px;
  font-size: 11px;
}

/* Pagination */
.de-pager {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  padding: 12px;
  border-top: 1px solid var(--border);
  font-size: var(--font-xs);
  color: var(--text-muted);
}

/* Error display */
.de-error {
  padding: 20px;
  color: var(--error);
  font-size: var(--font-sm);
}
.de-error-box {
  margin: 16px;
  padding: 16px;
  background: var(--error-bg);
  border: 1px solid var(--error);
  border-radius: var(--radius-sm);
}
.de-error-title {
  font-weight: 600;
  color: var(--error);
  margin-bottom: 8px;
}
.de-error-box pre {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  color: var(--text-secondary);
  white-space: pre-wrap;
  word-break: break-word;
}

/* Loading */
.de-loading {
  padding: 20px;
  text-align: center;
  color: var(--text-muted);
  font-size: var(--font-sm);
}

.de-muted {
  color: var(--text-muted);
}

/* Small buttons */
.btn-sm {
  padding: 5px 14px;
  font-size: var(--font-xs);
}

/* Schema/Preview/Stats tab content needs to scroll */
#tab-schema, #tab-preview, #tab-stats {
  overflow: auto;
}

/* Responsive */
@media (max-width: 900px) {
  .de-layout {
    flex-direction: column;
    height: auto;
  }
  .de-sidebar {
    width: 100%;
    max-height: 250px;
    border-right: none;
    border-bottom: 1px solid var(--border);
    border-radius: var(--radius) var(--radius) 0 0;
  }
  .de-main {
    min-height: 500px;
  }
}