:root {
  --bg-main: #1e1e1e;
  --bg-sidebar: #252526;
  --bg-header: #323233;
  --bg-tab-active: #1e1e1e;
  --bg-tab-inactive: #2d2d2d;
  --bg-input: #3c3c3c;
  --bg-hover: #2a2d2e;
  --border-color: #3e3e42;
  --text-main: #d4d4d4;
  --text-muted: #858585;
  --text-bright: #ffffff;
  --accent-blue: #007acc;
  --accent-blue-hover: #0062a3;
  --accent-green: #388a34;
  --accent-red: #c72e2e;
  --font-code: "Consolas", "Courier New", monospace;
  --font-ui: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

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

body {
  font-family: var(--font-ui);
  background-color: var(--bg-main);
  color: var(--text-main);
  height: 100vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  font-size: 13px;
}

/* Header */
.app-header {
  background-color: var(--bg-header);
  border-bottom: 1px solid var(--border-color);
  padding: 6px 16px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 38px;
  user-select: none;
}

.brand {
  font-weight: 600;
  font-size: 13px;
  letter-spacing: 0.5px;
  color: var(--text-bright);
}

.brand span {
  color: var(--accent-blue);
}

.status-badge {
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 2px;
  background-color: #2d2d2d;
  border: 1px solid var(--border-color);
}

.status-badge.connected {
  border-color: var(--accent-green);
  color: #73c991;
}

.status-badge.disconnected {
  border-color: var(--border-color);
  color: var(--text-muted);
}

/* Layout */
.app-container {
  display: flex;
  flex: 1;
  overflow: hidden;
}

/* Sidebar */
.sidebar {
  width: 320px;
  min-width: 300px;
  background-color: var(--bg-sidebar);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
}

.sidebar-title {
  padding: 10px 14px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border-color);
}

.sidebar-section {
  padding: 14px;
}

/* Form Styles */
.form-group {
  margin-bottom: 12px;
}

.form-group label {
  display: block;
  font-size: 11px;
  color: var(--text-muted);
  margin-bottom: 4px;
  text-transform: uppercase;
}

.form-control {
  width: 100%;
  padding: 6px 8px;
  background-color: var(--bg-input);
  border: 1px solid var(--border-color);
  color: var(--text-bright);
  font-size: 12px;
  font-family: inherit;
  border-radius: 2px;
  outline: none;
}

.form-control:focus {
  border-color: var(--accent-blue);
}

.form-row {
  display: flex;
  gap: 8px;
}

.form-row .form-group {
  flex: 1;
}

.btn-group {
  display: flex;
  gap: 8px;
  margin-top: 14px;
}

.btn {
  padding: 6px 12px;
  font-size: 12px;
  font-weight: 500;
  border-radius: 2px;
  cursor: pointer;
  border: 1px solid transparent;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  user-select: none;
  font-family: inherit;
}

.btn-primary {
  background-color: var(--accent-blue);
  color: #ffffff;
}

.btn-primary:hover {
  background-color: var(--accent-blue-hover);
}

.btn-secondary {
  background-color: #3a3d41;
  color: var(--text-bright);
  border-color: var(--border-color);
}

.btn-secondary:hover {
  background-color: #45494e;
}

.btn-danger {
  background-color: var(--accent-red);
  color: #ffffff;
}

.btn-danger:hover {
  background-color: #a82424;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Main Workspace */
.workspace {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background-color: var(--bg-main);
}

/* Toolbar */
.toolbar {
  height: 38px;
  background-color: var(--bg-sidebar);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 14px;
}

.toolbar-left, .toolbar-right {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Editor Container */
.editor-container {
  height: 40%;
  min-height: 140px;
  position: relative;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
}

.CodeMirror {
  height: 100% !important;
  font-family: var(--font-code) !important;
  font-size: 13px !important;
}

/* Split Pane: Bottom Results */
.output-container {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background-color: var(--bg-main);
}

.tabs-bar {
  display: flex;
  background-color: var(--bg-sidebar);
  border-bottom: 1px solid var(--border-color);
  height: 32px;
}

.tab-btn {
  padding: 0 16px;
  background-color: var(--bg-tab-inactive);
  border: none;
  border-right: 1px solid var(--border-color);
  color: var(--text-muted);
  font-size: 12px;
  cursor: pointer;
  display: flex;
  align-items: center;
  outline: none;
}

.tab-btn.active {
  background-color: var(--bg-tab-active);
  color: var(--text-bright);
  border-top: 2px solid var(--accent-blue);
}

.tab-content {
  flex: 1;
  overflow: auto;
  position: relative;
}

.tab-pane {
  display: none;
  height: 100%;
  overflow: auto;
}

.tab-pane.active {
  display: block;
}

/* Table styling */
.result-table-wrapper {
  overflow: auto;
  width: 100%;
  height: 100%;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--font-code);
  font-size: 12px;
  white-space: nowrap;
}

.data-table th {
  background-color: #252526;
  color: #b5b5b5;
  font-weight: 600;
  text-align: left;
  padding: 6px 12px;
  border-bottom: 1px solid var(--border-color);
  border-right: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 1;
}

.data-table td {
  padding: 5px 12px;
  border-bottom: 1px solid #2d2d30;
  border-right: 1px solid #2d2d30;
  color: #cccccc;
}

.data-table tr:hover {
  background-color: #2a2d2e;
}

/* Log / Messages tab */
.console-log {
  padding: 12px;
  font-family: var(--font-code);
  font-size: 12px;
  line-height: 1.6;
}

.log-entry {
  margin-bottom: 6px;
  padding: 4px 6px;
  border-radius: 2px;
}

.log-entry.info {
  color: #75beff;
}

.log-entry.success {
  color: #73c991;
}

.log-entry.error {
  color: #f48771;
  background-color: rgba(244, 135, 113, 0.08);
  border-left: 3px solid var(--accent-red);
}

.log-timestamp {
  color: var(--text-muted);
  margin-right: 8px;
}

/* Empty placeholder */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  color: var(--text-muted);
  font-size: 12px;
}

/* History Drawer */
.history-list {
  list-style: none;
  max-height: 160px;
  overflow-y: auto;
  border: 1px solid var(--border-color);
  border-radius: 2px;
  background-color: var(--bg-main);
}

.history-item {
  padding: 6px 8px;
  border-bottom: 1px solid #2d2d30;
  cursor: pointer;
  font-family: var(--font-code);
  font-size: 11px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  color: var(--text-muted);
}

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

/* Footer / Status bar */
.app-footer {
  height: 24px;
  background-color: var(--accent-blue);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 12px;
  font-size: 11px;
  user-select: none;
}

.footer-section {
  display: flex;
  gap: 14px;
}