/* ─── CSS Variables & Reset ─────────────────────────────────────────── */
:root {
    --bg-primary: #0f1923;
    --bg-secondary: #1a2a3a;
    --bg-tertiary: #243447;
    --bg-hover: #2c3e50;
    --bg-active: #3498db;
    --text-primary: #e8edf2;
    --text-secondary: #8ba0b8;
    --text-muted: #5a7a96;
    --border-color: #2c3e50;
    --border-light: #3a5068;
    --accent: #3498db;
    --accent-hover: #2980b9;
    --accent-green: #2ecc71;
    --accent-red: #e74c3c;
    --accent-orange: #f39c12;
    --accent-purple: #9b59b6;
    --font-mono: 'Cascadia Code', 'Fira Code', 'JetBrains Mono', 'Consolas', monospace;
    --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --sidebar-width: 280px;
    --header-height: 48px;
    --toolbar-height: 40px;
    --radius: 6px;
    --radius-sm: 4px;
}

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

body {
    font-family: var(--font-sans);
    background: var(--bg-primary);
    color: var(--text-primary);
    height: 100vh;
    overflow: hidden;
    font-size: 13px;
    line-height: 1.5;
}

/* ─── Scrollbar ────────────────────────────────────────────────────── */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}
::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}
::-webkit-scrollbar-thumb {
    background: var(--border-light);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

/* ─── Top Header Bar ──────────────────────────────────────────────── */
.header {
    height: var(--header-height);
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    padding: 0 16px;
    gap: 12px;
    user-select: none;
    flex-shrink: 0;
}

.header .logo {
    font-weight: 700;
    font-size: 15px;
    color: var(--accent);
    letter-spacing: 0.5px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.header .logo svg {
    width: 20px;
    height: 20px;
}

.header .spacer { flex: 1; }

.header .header-btn {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-light);
    color: var(--text-primary);
    padding: 4px 12px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 12px;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: all 0.15s;
}
.header .header-btn:hover {
    background: var(--bg-hover);
    border-color: var(--accent);
}
.header .header-btn svg {
    width: 14px;
    height: 14px;
}

.header .status-indicator {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 11px;
    color: var(--text-muted);
}
.header .status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent-green);
}

/* ─── Main Layout ──────────────────────────────────────────────────── */
.main-container {
    display: flex;
    height: calc(100vh - var(--header-height));
    width: 100%;
}

/* ─── Left Sidebar ────────────────────────────────────────────────── */
.sidebar {
    width: var(--sidebar-width);
    min-width: var(--sidebar-width);
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    flex-shrink: 0;
}

.sidebar-header {
    padding: 10px 12px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-weight: 600;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-secondary);
    flex-shrink: 0;
}

.sidebar-header .btn-icon {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 3px 6px;
    border-radius: var(--radius-sm);
    font-size: 16px;
    line-height: 1;
    transition: all 0.15s;
}
.sidebar-header .btn-icon:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.sidebar-content {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 4px 0;
}

/* ─── Database Tree ────────────────────────────────────────────────── */
.db-item {
    border-bottom: 1px solid var(--border-color);
}

.db-header {
    padding: 8px 12px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 500;
    font-size: 13px;
    color: var(--text-primary);
    transition: background 0.1s;
    user-select: none;
}
.db-header:hover {
    background: var(--bg-hover);
}
.db-header.active {
    background: var(--bg-active);
    color: #fff;
}
.db-header .chevron {
    width: 16px;
    text-align: center;
    font-size: 10px;
    color: var(--text-muted);
    transition: transform 0.15s;
}
.db-header.active .chevron { color: #fff; }
.db-header .chevron.open {
    transform: rotate(90deg);
}
.db-header .db-icon {
    color: var(--accent);
    font-size: 14px;
}
.db-header .db-name {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.db-header .db-actions {
    display: flex;
    gap: 2px;
    opacity: 0.4;
    transition: opacity 0.15s;
}
.db-header:hover .db-actions {
    opacity: 1;
}
.db-header.active .db-actions {
    opacity: 0.8;
}
.db-header .db-actions button {
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 1px 4px;
    border-radius: 2px;
    font-size: 12px;
    line-height: 1;
}
.db-header .db-actions button:hover {
    color: var(--text-primary);
    background: rgba(255,255,255,0.1);
}

/* ─── Table List ───────────────────────────────────────────────────── */
.table-list {
    display: none;
    background: var(--bg-tertiary);
}
.table-list.open {
    display: block;
}

.table-item {
    padding: 6px 12px 6px 36px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12.5px;
    color: var(--text-secondary);
    transition: all 0.1s;
    user-select: none;
}
.table-item:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}
.table-item.active {
    background: var(--bg-active);
    color: #fff;
}
.table-item .table-icon {
    width: 14px;
    text-align: center;
    font-size: 12px;
    opacity: 0.7;
}
.table-item .table-name {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.table-item .row-count {
    font-size: 11px;
    color: var(--text-muted);
    margin-left: auto;
}
.table-item.active .row-count { color: rgba(255,255,255,0.6); }

.table-item .table-actions {
    display: flex;
    gap: 2px;
    opacity: 0.3;
    transition: opacity 0.15s;
}
.table-item:hover .table-actions {
    opacity: 1;
}
.table-item.active .table-actions {
    opacity: 0.8;
}
.table-item .table-actions button {
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 1px 4px;
    border-radius: 2px;
    font-size: 11px;
    line-height: 1;
}
.table-item .table-actions button:hover {
    color: var(--text-primary);
    background: rgba(255,255,255,0.1);
}

/* ─── Right Content Area ───────────────────────────────────────────── */
.content {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    background: var(--bg-primary);
}

/* ─── Empty State ──────────────────────────────────────────────────── */
.empty-state {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    gap: 12px;
    padding: 40px;
}
.empty-state .empty-icon {
    font-size: 48px;
    opacity: 0.3;
}
.empty-state h2 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-secondary);
}
.empty-state p {
    font-size: 13px;
    max-width: 400px;
    text-align: center;
    line-height: 1.6;
}

/* ─── Toolbar ──────────────────────────────────────────────────────── */
.toolbar {
    height: var(--toolbar-height);
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    padding: 0 12px;
    gap: 8px;
    flex-shrink: 0;
    overflow-x: auto;
}

.toolbar .table-title {
    font-weight: 600;
    font-size: 14px;
    white-space: nowrap;
    margin-right: 8px;
}

.toolbar .toolbar-btn {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-light);
    color: var(--text-primary);
    padding: 3px 10px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 11.5px;
    display: flex;
    align-items: center;
    gap: 5px;
    white-space: nowrap;
    transition: all 0.15s;
}
.toolbar .toolbar-btn:hover {
    background: var(--bg-hover);
    border-color: var(--accent);
}
.toolbar .toolbar-btn.danger:hover {
    border-color: var(--accent-red);
    color: var(--accent-red);
}
.toolbar .toolbar-btn.success:hover {
    border-color: var(--accent-green);
    color: var(--accent-green);
}
.toolbar .toolbar-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}
.toolbar .toolbar-separator {
    width: 1px;
    height: 20px;
    background: var(--border-color);
    margin: 0 4px;
}

.toolbar .toolbar-status {
    margin-left: auto;
    font-size: 11px;
    color: var(--text-muted);
    white-space: nowrap;
}

/* ─── Schema Panel ──────────────────────────────────────────────────── */
.schema-panel {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    padding: 10px 12px;
    display: none;
    flex-shrink: 0;
    max-height: 200px;
    overflow-y: auto;
}
.schema-panel.open { display: block; }

.schema-panel .schema-title {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
    margin-bottom: 6px;
}

.schema-panel table {
    width: 100%;
    border-collapse: collapse;
    font-size: 12px;
}
.schema-panel table th,
.schema-panel table td {
    padding: 3px 8px;
    border: 1px solid var(--border-color);
    text-align: left;
}
.schema-panel table th {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 11px;
}
.schema-panel table td {
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: 11px;
}
.schema-panel .pk-badge {
    color: var(--accent-orange);
}
.schema-panel .fk-badge {
    color: var(--accent-purple);
}
.schema-panel .idx-badge {
    color: var(--accent-green);
}

/* ─── Data Grid Container ──────────────────────────────────────────── */
.grid-container {
    flex: 1;
    overflow: auto;
    position: relative;
}

/* ─── Data Grid Table ──────────────────────────────────────────────── */
.data-grid {
    width: 100%;
    border-collapse: collapse;
    font-size: 12.5px;
    table-layout: fixed;
    min-width: 100%;
}

.data-grid th {
    position: sticky;
    top: 0;
    z-index: 10;
    background: var(--bg-tertiary);
    padding: 0;
    border-bottom: 2px solid var(--border-light);
    user-select: none;
    vertical-align: top;
}

.data-grid th .th-header {
    display: flex;
    align-items: center;
    padding: 6px 8px;
    cursor: pointer;
    transition: background 0.1s;
    gap: 4px;
}
.data-grid th .th-header:hover {
    background: var(--bg-hover);
}
.data-grid th .th-header .col-name {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-weight: 600;
    font-size: 11.5px;
    color: var(--text-secondary);
}
.data-grid th .th-header .col-type {
    font-weight: 400;
    font-size: 10px;
    color: var(--text-muted);
    margin-left: 4px;
}
.data-grid th .th-header .sort-indicator {
    font-size: 10px;
    color: var(--accent);
    min-width: 12px;
    text-align: center;
    opacity: 0.5;
}
.data-grid th .th-header .sort-indicator.active {
    opacity: 1;
}
.data-grid th .th-header .sort-indicator .sort-order {
    font-size: 9px;
    color: var(--text-muted);
    margin-left: 1px;
}

.data-grid th .th-filter {
    padding: 3px 6px;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
}
.data-grid th .th-filter input {
    width: 100%;
    padding: 3px 6px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 11px;
    outline: none;
    transition: border-color 0.15s;
}
.data-grid th .th-filter input:focus {
    border-color: var(--accent);
}
.data-grid th .th-filter input::placeholder {
    color: var(--text-muted);
    font-size: 10px;
}

.data-grid td {
    padding: 4px 8px;
    border-bottom: 1px solid var(--border-color);
    border-right: 1px solid rgba(44, 62, 80, 0.5);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    max-width: 250px;
    cursor: cell;
    position: relative;
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: 12px;
}

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

.data-grid td.fk-cell {
    border-left: 2px solid var(--accent-purple);
}
.data-grid th .fk-badge {
    display: inline-block;
    font-size: 9px;
    color: var(--accent-purple);
    margin-left: 3px;
    cursor: help;
}
.data-grid td select.fk-dropdown {
    width: 100%;
    min-height: 28px;
    background: var(--bg-primary);
    border: 2px solid var(--accent);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: 12px;
    padding: 2px 4px;
    outline: none;
}
.data-grid td select.fk-dropdown:focus {
    border-color: var(--accent-green);
}

.data-grid td:hover {
    background: rgba(52, 152, 219, 0.08);
}

.data-grid td.editing {
    padding: 0;
}
.data-grid td.editing input,
.data-grid td.editing textarea,
.data-grid td.editing select {
    width: 100%;
    height: 100%;
    min-height: 26px;
    padding: 3px 7px;
    background: var(--bg-primary);
    border: 2px solid var(--accent);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: 12px;
    outline: none;
    box-sizing: border-box;
}
.data-grid td.editing textarea {
    resize: none;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 20;
    min-height: 60px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.3);
}

.data-grid td.selected {
    outline: 2px solid var(--accent);
    outline-offset: -2px;
    background: rgba(52, 152, 219, 0.12);
}
.data-grid td.clipboard-source {
    background: rgba(46, 204, 113, 0.15);
    outline: 2px solid var(--accent-green);
    outline-offset: -2px;
}

.data-grid tr:hover td {
    background: rgba(255,255,255,0.02);
}
.data-grid tr:hover td.selected {
    background: rgba(52, 152, 219, 0.15);
}

.data-grid td .cell-tooltip {
    display: none;
    position: absolute;
    bottom: 100%;
    left: 0;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-light);
    padding: 4px 8px;
    border-radius: var(--radius-sm);
    font-size: 11px;
    z-index: 30;
    white-space: normal;
    max-width: 300px;
    word-break: break-all;
}
.data-grid td:hover .cell-tooltip {
    display: none; /* Don't show on hover, only when truncated */
}

/* ─── Row highlight for selected rows ──────────────────────────────── */
.data-grid tr.row-selected td {
    background: rgba(52, 152, 219, 0.1);
}

/* ─── Pagination ───────────────────────────────────────────────────── */
.pagination-bar {
    display: flex;
    align-items: center;
    padding: 6px 12px;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    gap: 8px;
    flex-shrink: 0;
    font-size: 12px;
}

.pagination-bar .page-btn {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-light);
    color: var(--text-primary);
    padding: 3px 10px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 11px;
    transition: all 0.15s;
}
.pagination-bar .page-btn:hover {
    background: var(--bg-hover);
    border-color: var(--accent);
}
.pagination-bar .page-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}
.pagination-bar .page-info {
    color: var(--text-secondary);
}
.pagination-bar .page-size-select {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-light);
    color: var(--text-primary);
    padding: 3px 6px;
    border-radius: var(--radius-sm);
    font-size: 11px;
    outline: none;
    margin-left: auto;
}

.pagination-bar .page-input {
    width: 50px;
    padding: 3px 6px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 11px;
    text-align: center;
    outline: none;
}
.pagination-bar .page-input:focus {
    border-color: var(--accent);
}

/* ─── Modals ────────────────────────────────────────────────────────── */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    z-index: 1000;
    display: none;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(4px);
}
.modal-overlay.open {
    display: flex;
}

.modal {
    background: var(--bg-secondary);
    border: 1px solid var(--border-light);
    border-radius: var(--radius);
    max-width: 600px;
    width: 90%;
    max-height: 85vh;
    display: flex;
    flex-direction: column;
    box-shadow: 0 20px 60px rgba(0,0,0,0.5);
}

.modal-wide {
    max-width: 900px;
}

.modal-header {
    padding: 14px 16px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-shrink: 0;
}
.modal-header h3 {
    font-size: 15px;
    font-weight: 600;
}
.modal-header .modal-close {
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 20px;
    line-height: 1;
    padding: 2px 6px;
    border-radius: var(--radius-sm);
}
.modal-header .modal-close:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.modal-body {
    padding: 16px;
    overflow-y: auto;
    flex: 1;
}

.modal-footer {
    padding: 12px 16px;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: 8px;
    flex-shrink: 0;
}

/* ─── Form Elements ────────────────────────────────────────────────── */
.form-group {
    margin-bottom: 12px;
}
.form-group label {
    display: block;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 4px;
}
.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 7px 10px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 13px;
    outline: none;
    font-family: var(--font-sans);
    transition: border-color 0.15s;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--accent);
}
.form-group textarea {
    font-family: var(--font-mono);
    font-size: 12px;
    min-height: 80px;
    resize: vertical;
}
.form-group .helper {
    font-size: 11px;
    color: var(--text-muted);
    margin-top: 3px;
}

.form-row {
    display: flex;
    gap: 8px;
}
.form-row .form-group {
    flex: 1;
}

.form-checkbox {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-bottom: 8px;
}
.form-checkbox input[type="checkbox"] {
    width: auto;
}
.form-checkbox label {
    margin-bottom: 0;
    font-weight: 400;
}

/* ─── Buttons ──────────────────────────────────────────────────────── */
.btn {
    padding: 7px 16px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-light);
    cursor: pointer;
    font-size: 13px;
    font-weight: 500;
    transition: all 0.15s;
    font-family: var(--font-sans);
}
.btn-primary {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
}
.btn-primary:hover {
    background: var(--accent-hover);
}
.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}
.btn-secondary:hover {
    background: var(--bg-hover);
}
.btn-danger {
    background: var(--accent-red);
    border-color: var(--accent-red);
    color: #fff;
}
.btn-danger:hover {
    background: #c0392b;
}
.btn-success {
    background: var(--accent-green);
    border-color: var(--accent-green);
    color: #fff;
}
.btn-success:hover {
    background: #27ae60;
}
.btn-sm {
    padding: 3px 10px;
    font-size: 11px;
}
.btn-ghost {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    padding: 4px 8px;
}
.btn-ghost:hover {
    color: var(--text-primary);
    background: var(--bg-hover);
}

/* ─── SQL Editor Modal ─────────────────────────────────────────────── */
.sql-editor-container {
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.sql-editor-container .sql-input {
    font-family: var(--font-mono);
    font-size: 12px;
    min-height: 200px;
    padding: 10px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    resize: vertical;
    outline: none;
    tab-size: 4;
}
.sql-editor-container .sql-input:focus {
    border-color: var(--accent);
}
.sql-editor-container .sql-results {
    max-height: 300px;
    overflow: auto;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    background: var(--bg-primary);
}
.sql-results table {
    width: 100%;
    border-collapse: collapse;
    font-size: 11.5px;
}
.sql-results th {
    background: var(--bg-tertiary);
    padding: 5px 8px;
    border: 1px solid var(--border-color);
    text-align: left;
    font-weight: 600;
    color: var(--text-secondary);
    position: sticky;
    top: 0;
}
.sql-results td {
    padding: 3px 8px;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: 11px;
    max-width: 200px;
    overflow: hidden;
    text-overflow: ellipsis;
}
.sql-results .success-msg {
    padding: 8px;
    color: var(--accent-green);
    font-weight: 500;
}
.sql-results .error-msg {
    padding: 8px;
    color: var(--accent-red);
    font-weight: 500;
}

/* ─── Toast Notifications ──────────────────────────────────────────── */
.toast-container {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 2000;
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.toast {
    padding: 10px 16px;
    border-radius: var(--radius);
    font-size: 13px;
    font-weight: 500;
    animation: slideInRight 0.3s ease;
    max-width: 400px;
    box-shadow: 0 4px 16px rgba(0,0,0,0.3);
}
.toast-success {
    background: #1a3a2a;
    border: 1px solid var(--accent-green);
    color: #7ddfa0;
}
.toast-error {
    background: #3a1a1a;
    border: 1px solid var(--accent-red);
    color: #e88;
}
.toast-info {
    background: #1a2a3a;
    border: 1px solid var(--accent);
    color: #8ab8e8;
}
.toast-warning {
    background: #3a2a1a;
    border: 1px solid var(--accent-orange);
    color: #e8c88a;
}

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

/* ─── Loading Spinner ──────────────────────────────────────────────── */
.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px;
    color: var(--text-muted);
    gap: 10px;
}
.spinner {
    width: 20px;
    height: 20px;
    border: 2px solid var(--border-light);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}
@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ─── Context Menu ──────────────────────────────────────────────────── */
.context-menu {
    position: fixed;
    background: var(--bg-secondary);
    border: 1px solid var(--border-light);
    border-radius: var(--radius);
    box-shadow: 0 8px 24px rgba(0,0,0,0.4);
    z-index: 1500;
    min-width: 160px;
    padding: 4px 0;
    display: none;
}
.context-menu.open {
    display: block;
}
.context-menu-item {
    padding: 7px 12px;
    cursor: pointer;
    font-size: 12px;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 8px;
    transition: background 0.1s;
}
.context-menu-item:hover {
    background: var(--bg-hover);
}
.context-menu-item.danger {
    color: var(--accent-red);
}
.context-menu-separator {
    height: 1px;
    background: var(--border-color);
    margin: 4px 0;
}

/* ─── Editable Column Header ────────────────────────────────────────── */
.col-name-editing {
    z-index: 100;
}
.col-name-editing input {
    background: var(--bg-primary);
    border: 2px solid var(--accent);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    padding: 2px 6px;
    font-size: 11.5px;
    font-weight: 600;
    font-family: var(--font-sans);
    width: 100%;
    outline: none;
}

/* ─── Responsive tweaks ────────────────────────────────────────────── */
@media (max-width: 768px) {
    :root {
        --sidebar-width: 220px;
    }
}

/* ─── Column management modal ──────────────────────────────────────── */
.column-list-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 12px;
    margin-bottom: 12px;
}
.column-list-table th,
.column-list-table td {
    padding: 5px 8px;
    border: 1px solid var(--border-color);
    text-align: left;
}
.column-list-table th {
    background: var(--bg-tertiary);
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 11px;
}
.column-list-table td input,
.column-list-table td select {
    width: 100%;
    padding: 3px 6px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 12px;
    outline: none;
}
.column-list-table td input:focus,
.column-list-table td select:focus {
    border-color: var(--accent);
}

/* ─── Filter Bar ───────────────────────────────────────────────────── */
.filter-bar {
    padding: 6px 12px;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
    flex-wrap: wrap;
}
.filter-bar .filter-tag {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-light);
    padding: 2px 8px;
    border-radius: 12px;
    font-size: 11px;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 4px;
}
.filter-bar .filter-tag .remove-filter {
    cursor: pointer;
    color: var(--text-muted);
    font-size: 14px;
    line-height: 1;
}
.filter-bar .filter-tag .remove-filter:hover {
    color: var(--accent-red);
}

/* ─── Range input for page jump ────────────────────────────────────── */
.go-to-page {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 11px;
}
.go-to-page label {
    color: var(--text-muted);
}