/* ── SQL Playground ── */

body, #app { height: 100vh; display: flex; flex-direction: column; overflow: hidden; }

.app-body {
  display: flex;
  flex: 1;
  min-height: 0;
  overflow: hidden;
}

/* Left panel */
.left-panel {
  width: 260px;
  min-width: 220px;
  border-right: 1px solid var(--border-color);
  background: var(--bg-secondary);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  overflow-x: hidden;
  flex-shrink: 0;
}

.center-panel {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
  overflow: hidden;
}

.right-panel {
  width: 380px;
  min-width: 320px;
  border-left: 1px solid var(--border-color);
  background: var(--bg-secondary);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  flex-shrink: 0;
}

/* Side sections */
.side-section {
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 6px;
}

.side-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 10px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-secondary);
  background: var(--bg-primary);
  border-bottom: 1px solid var(--border-color);
}

.side-header-actions {
  display: flex;
  align-items: center;
  gap: 4px;
}

.side-empty {
  padding: 8px 10px;
  font-size: 12px;
}

/* DB list */
.db-list {
  display: flex;
  flex-direction: column;
  padding: 4px 0;
}

.db-item {
  display: flex;
  align-items: center;
  gap: 2px;
  padding: 2px 6px;
}

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

.db-item.active {
  background: var(--accent-light);
}

.db-select-btn {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 8px;
  border: none;
  background: transparent;
  color: var(--text-primary);
  text-align: left;
  padding: 4px 6px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 13px;
  min-width: 0;
}

.db-select-btn > span {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.dirty-dot {
  color: var(--warning, #f59e0b);
  font-size: 16px;
  line-height: 0.5;
  margin-left: 2px;
}

/* Table tree */
.table-tree {
  padding: 4px 0;
  font-size: 13px;
}

.tree-table-row {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 4px 8px;
  cursor: default;
}

.tree-table-row:hover { background: var(--bg-hover); }

.tree-toggle {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 2px 4px;
  font-size: 10px;
}

.tree-name {
  flex: 1;
  cursor: pointer;
  font-weight: 500;
  color: var(--text-primary);
}

.tree-name:hover { color: var(--accent); }

.tree-count {
  font-size: 11px;
  color: var(--text-muted);
  padding: 0 6px;
  background: var(--bg-tertiary);
  border-radius: 10px;
}

.tree-columns {
  padding-left: 18px;
  padding-bottom: 4px;
}

.tree-col {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 2px 6px;
  font-size: 12px;
  cursor: pointer;
}

.tree-col:hover { background: var(--bg-hover); }

.tree-col .col-name { color: var(--text-primary); }
.tree-col .col-type { color: var(--text-muted); font-size: 11px; }
.tree-col .fa-key { color: #f59e0b; font-size: 10px; }

.col-flag {
  font-size: 9px;
  background: var(--bg-tertiary);
  border-radius: 4px;
  padding: 1px 4px;
  color: var(--text-muted);
}

.tree-fk {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 2px 6px;
  font-size: 11px;
  color: var(--text-muted);
  font-style: italic;
}

/* Snippets */
.snippet-save {
  display: flex;
  gap: 4px;
  padding: 6px 10px;
  border-bottom: 1px solid var(--border-color);
}

.snippet-save input {
  flex: 1;
  padding: 4px 8px;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  background: var(--bg-primary);
  color: var(--text-primary);
  font-size: 12px;
}

.snippet-list {
  padding: 4px 0;
}

.snippet-item {
  display: flex;
  align-items: center;
  padding: 2px 6px;
}

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

.snippet-load {
  flex: 1;
  text-align: left;
  background: transparent;
  border: none;
  color: var(--text-primary);
  padding: 4px 6px;
  cursor: pointer;
  font-size: 12px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* Editor + results split */
.sql-split {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 0;
}

.sql-editor-wrap {
  flex: 0 0 45%;
  min-height: 150px;
  border-bottom: 1px solid var(--border-color);
  position: relative;
}

.sql-editor-host {
  position: absolute;
  inset: 0;
}

.results-wrap {
  flex: 1;
  min-height: 120px;
  display: flex;
  flex-direction: column;
  background: var(--bg-primary);
}

.results-tabs {
  display: flex;
  gap: 2px;
  padding: 4px 8px 0 8px;
  border-bottom: 1px solid var(--border-color);
  background: var(--bg-secondary);
}

.results-tab {
  background: transparent;
  border: none;
  padding: 6px 12px;
  font-size: 12px;
  color: var(--text-secondary);
  cursor: pointer;
  border-radius: 4px 4px 0 0;
  border: 1px solid transparent;
  border-bottom: none;
}

.results-tab.active {
  background: var(--bg-primary);
  color: var(--text-primary);
  border-color: var(--border-color);
}

.results-pane {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 0;
  overflow: hidden;
}

.results-meta {
  display: flex;
  gap: 8px;
  padding: 4px 10px;
  font-size: 11px;
  color: var(--text-muted);
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
}

.results-grid-scroller {
  flex: 1;
  overflow: auto;
  min-height: 0;
  position: relative;
}

.results-grid {
  border-collapse: collapse;
  width: 100%;
  font-size: 12px;
  font-family: 'Cascadia Code', 'Fira Code', 'Consolas', monospace;
}

.results-grid thead th {
  position: sticky;
  top: 0;
  background: var(--bg-secondary);
  border-bottom: 2px solid var(--border-color);
  border-right: 1px solid var(--border-color);
  padding: 6px 10px;
  text-align: left;
  font-weight: 600;
  white-space: nowrap;
  z-index: 1;
  color: var(--text-primary);
}

.results-grid td {
  padding: 3px 10px;
  border-right: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  vertical-align: top;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 400px;
}

.results-grid tbody tr:hover { background: var(--bg-hover); }

.row-num, .row-num-header {
  color: var(--text-muted);
  background: var(--bg-secondary);
  min-width: 40px;
  text-align: right;
}

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

.results-empty, .results-error {
  padding: 20px;
  text-align: center;
  font-size: 13px;
}

.results-error {
  color: #ef4444;
  text-align: left;
  display: flex;
  gap: 10px;
  align-items: flex-start;
}

.results-error pre {
  white-space: pre-wrap;
  font-family: 'Cascadia Code', 'Fira Code', 'Consolas', monospace;
  font-size: 12px;
  background: rgba(239, 68, 68, 0.08);
  padding: 10px;
  border-radius: 6px;
  flex: 1;
  margin: 0;
}

/* Right panel tabs */
.right-tabs {
  display: flex;
  gap: 2px;
  padding: 6px 8px 0 8px;
  background: var(--bg-primary);
  border-bottom: 1px solid var(--border-color);
  flex-shrink: 0;
}

.right-tab {
  background: transparent;
  border: none;
  padding: 6px 10px;
  font-size: 12px;
  color: var(--text-secondary);
  cursor: pointer;
  border-radius: 4px 4px 0 0;
}

.right-tab.active {
  background: var(--bg-secondary);
  color: var(--text-primary);
}

.right-tab-body {
  flex: 1;
  overflow: auto;
  min-height: 0;
}

/* Schema diagram */
.schema-diagram {
  width: 100%;
  height: 100%;
  min-height: 320px;
  color: var(--text-secondary);
}

.schema-diagram svg {
  display: block;
}

.er-node rect {
  fill: var(--bg-primary);
  stroke: var(--border-color);
  stroke-width: 1;
}

.er-node .er-header {
  fill: var(--accent-light);
  stroke: none;
}

.er-title {
  font: 600 12px var(--font-family, sans-serif);
  fill: var(--text-primary);
}

.er-col {
  font: 11px var(--font-family, sans-serif);
  fill: var(--text-primary);
}

.er-col .er-type {
  fill: var(--text-muted);
  font-size: 10px;
}

.er-more {
  font-style: italic;
  fill: var(--text-muted);
}

/* Plan tree */
.plan-tree, .plan-tree ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.plan-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 4px 8px;
  font-size: 12px;
  font-family: 'Cascadia Code', 'Fira Code', 'Consolas', monospace;
}

.plan-row:hover { background: var(--bg-hover); }

.plan-row i {
  color: var(--accent);
  font-size: 10px;
}

.plan-detail {
  color: var(--text-primary);
  white-space: pre-wrap;
}

/* Assistant */
.assistant-panel {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 12px;
}

.assist-modes {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px;
}

.assist-mode {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 8px;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 12px;
}

.assist-mode.active {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-light);
}

.assist-input {
  resize: vertical;
  min-height: 60px;
  padding: 8px;
  border-radius: 6px;
  border: 1px solid var(--border-color);
  background: var(--bg-primary);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 13px;
}

.assist-row {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
}

.assist-row input[type="number"] {
  width: 70px;
  padding: 4px 6px;
  border: 1px solid var(--border-color);
  background: var(--bg-primary);
  color: var(--text-primary);
  border-radius: 4px;
}

.assist-hint { font-size: 12px; }

.assist-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.assist-output {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  background: var(--bg-primary);
  overflow: hidden;
}

.assist-output-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 6px 10px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  font-size: 11px;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.assist-output-actions { display: flex; gap: 4px; }

.assist-sql {
  margin: 0;
  padding: 10px;
  font-family: 'Cascadia Code', 'Fira Code', 'Consolas', monospace;
  font-size: 12px;
  color: var(--text-primary);
  white-space: pre-wrap;
  max-height: 300px;
  overflow: auto;
}

.assist-prose {
  margin: 0;
  padding: 10px;
  font-size: 13px;
  color: var(--text-primary);
  white-space: pre-wrap;
  max-height: 300px;
  overflow: auto;
}

/* Toolbar bits */
.db-name-pill {
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  font-size: 12px;
  color: var(--text-secondary);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  max-width: 220px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.db-name-pill.is-dirty { color: var(--warning, #f59e0b); border-color: var(--warning, #f59e0b); }

.btn-running { opacity: 0.8; cursor: progress; }

.btn-xs {
  padding: 2px 4px !important;
  font-size: 10px !important;
}

.btn-sm {
  padding: 4px 8px !important;
  font-size: 11px !important;
}

/* Modals */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
}

.modal {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
  max-height: 80vh;
  width: 420px;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-color);
}

.modal-header h2 {
  font-size: 1rem;
  margin: 0;
  color: var(--text-primary);
}

.modal-body {
  padding: 16px;
  overflow: auto;
}

.modal-footer {
  padding: 12px 16px;
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  border-top: 1px solid var(--border-color);
}

.form-group { margin-bottom: 12px; }
.form-group label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 4px;
}
.form-input {
  width: 100%;
  padding: 8px 10px;
  border: 1px solid var(--border-color);
  background: var(--bg-primary);
  color: var(--text-primary);
  border-radius: 6px;
  font-size: 13px;
}

/* Toasts */
.toast-stack {
  position: fixed;
  bottom: 20px;
  right: 20px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  z-index: 200;
}

.toast {
  padding: 8px 14px;
  border-radius: 8px;
  font-size: 12px;
  background: var(--bg-secondary);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-lg);
  min-width: 180px;
  max-width: 420px;
}

.toast-success { border-color: #10b981; color: #10b981; }
.toast-error { border-color: #ef4444; color: #ef4444; }
.toast-info { border-color: var(--accent); }

/* CSV import dialog */
.csv-preview {
  max-height: 200px;
  overflow: auto;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 6px;
  font-family: 'Cascadia Code', 'Fira Code', 'Consolas', monospace;
  font-size: 11px;
  background: var(--bg-secondary);
  white-space: pre;
}