/* Layout and components. Uses theme.css tokens ONLY: no colour literals here. */

html {
    font-size: 16px;
}

body {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background: var(--kart-bg);
    color: var(--kart-text);
    font-family: var(--kart-font-sans);
}

a {
    color: var(--kart-link);
}

a:hover {
    color: var(--kart-link-hover);
}

/* ---------- Top navigation ---------- */
.kart-nav {
    min-height: var(--kart-nav-height);
    background: var(--kart-nav-bg);
    border-bottom: 1px solid var(--kart-nav-border);
    box-shadow: var(--kart-shadow-sm);
}

.kart-nav .nav-link,
.kart-nav .navbar-brand,
.kart-nav .btn-icon {
    color: var(--kart-nav-text);
}

.kart-nav .nav-link:hover,
.kart-nav .nav-link:focus-visible {
    color: var(--kart-nav-text-active);
}

.kart-nav .nav-link.active {
    color: var(--kart-nav-text-active);
    font-weight: var(--kart-font-weight-medium);
}

.kart-brand {
    display: inline-flex;
    align-items: center;
    gap: var(--kart-space-2);
    font-weight: var(--kart-font-weight-bold);
    letter-spacing: 0.02em;
}

.kart-brand img {
    height: 28px;
    width: auto;
}

.kart-brand-mark {
    display: inline-grid;
    place-items: center;
    width: 30px;
    height: 30px;
    border-radius: var(--kart-radius-md);
    background: var(--kart-color-primary);
    color: var(--kart-color-on-primary);
    font-size: var(--kart-font-size-sm);
    font-weight: var(--kart-font-weight-bold);
}

.kart-logo-dark { display: none; }
[data-bs-theme="dark"] .kart-logo-light.has-dark { display: none; }
[data-bs-theme="dark"] .kart-logo-dark { display: inline; }

.btn-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    padding: 0;
    border: 1px solid transparent;
    border-radius: var(--kart-radius-md);
    background: transparent;
    transition: background-color var(--kart-transition);
}

.btn-icon:hover {
    background: var(--kart-surface-hover);
}

.kart-avatar {
    display: inline-grid;
    place-items: center;
    width: 30px;
    height: 30px;
    border-radius: var(--kart-radius-pill);
    background: var(--kart-color-primary-subtle);
    color: var(--kart-color-primary);
    font-size: var(--kart-font-size-sm);
    font-weight: var(--kart-font-weight-bold);
}

/* ---------- Page shell ---------- */
.kart-main {
    flex: 1 0 auto;
    width: 100%;
    max-width: var(--kart-content-max-width);
    margin: 0 auto;
    padding: var(--kart-space-5) var(--kart-space-4);
}

.kart-main.kart-main-fluid {
    max-width: none;
    padding: 0;
}

.kart-footer {
    flex-shrink: 0;
    padding: var(--kart-space-3) var(--kart-space-4);
    border-top: 1px solid var(--kart-border);
    color: var(--kart-text-muted);
    font-size: var(--kart-font-size-sm);
    text-align: center;
}

.kart-page-header {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: var(--kart-space-3);
    margin-bottom: var(--kart-space-5);
}

.kart-page-header h1 {
    margin: 0;
    font-size: 1.5rem;
    font-weight: var(--kart-font-weight-bold);
}

.kart-page-header .kart-subtitle {
    margin: var(--kart-space-1) 0 0;
    color: var(--kart-text-secondary);
}

.kart-card {
    background: var(--kart-surface);
    border: 1px solid var(--kart-border);
    border-radius: var(--kart-radius-lg);
    box-shadow: var(--kart-shadow-sm);
}

.kart-card-body {
    padding: var(--kart-space-5);
}

.kart-card-header {
    padding: var(--kart-space-3) var(--kart-space-5);
    border-bottom: 1px solid var(--kart-border);
}

.kart-card > .list-group-flush {
    border-radius: 0 0 var(--kart-radius-lg) var(--kart-radius-lg);
}

/* Builder version history */
.kart-history-list {
    border-right: 1px solid var(--kart-border);
    max-height: 60vh;
    overflow-y: auto;
}

.kart-history-item {
    background: transparent;
    color: inherit;
    border-color: var(--kart-border);
}

.kart-history-item:hover { background: var(--kart-surface-hover); color: inherit; }

.kart-history-item.active {
    background: rgba(var(--kart-color-primary-rgb), 0.12);
    border-color: var(--kart-border);
    color: inherit;
}

.kart-history-meta { color: var(--kart-text-muted); }

.kart-card > .list-group-flush > .list-group-item {
    background: transparent;
    border-color: var(--kart-border);
    color: inherit;
}

.kart-section-title {
    margin-bottom: var(--kart-space-3);
    font-size: var(--kart-font-size-lg);
    font-weight: var(--kart-font-weight-bold);
}

.kart-narrow {
    max-width: 640px;
}

.kart-assign-search {
    max-width: 18rem;
}

.kart-check-list {
    max-height: 26rem;
    overflow-y: auto;
}

.kart-check-list > li {
    padding: var(--kart-space-2) 0;
    border-bottom: 1px solid var(--kart-border);
}

.kart-check-list > li:last-child {
    border-bottom: 0;
}

.kart-form-page {
    max-width: 900px;
}

.kart-input-narrow {
    max-width: 7rem;
}

.kart-code {
    padding: var(--kart-space-3);
    border-radius: var(--kart-radius-md);
    background: var(--kart-surface-2);
    color: var(--kart-text);
    font-family: var(--kart-font-mono);
    font-size: var(--kart-font-size-sm);
    white-space: pre-wrap;
}

/* ---------- Schema explorer (data source page) ---------- */
.kart-schema-list {
    max-height: 32rem;
    overflow-y: auto;
    border: 1px solid var(--kart-border);
    border-radius: var(--kart-radius-md);
}

.kart-schema-item {
    border-bottom: 1px solid var(--kart-border);
}

.kart-schema-item:last-child {
    border-bottom: 0;
}

.kart-schema-item > summary {
    display: flex;
    align-items: center;
    gap: var(--kart-space-2);
    padding: var(--kart-space-2) var(--kart-space-3);
    cursor: pointer;
    list-style: none;
}

.kart-schema-item > summary::-webkit-details-marker {
    display: none;
}

.kart-schema-item > summary::before {
    content: "\F285"; /* bootstrap-icons chevron-right */
    font-family: bootstrap-icons;
    font-size: 0.75rem;
    color: var(--kart-text-muted);
    transition: transform var(--kart-transition);
}

.kart-schema-item[open] > summary::before {
    transform: rotate(90deg);
}

.kart-schema-item > summary:hover {
    background: var(--kart-surface-hover);
}

.kart-schema-columns {
    margin: 0;
    padding: 0 var(--kart-space-3) var(--kart-space-2) var(--kart-space-6);
    list-style: none;
}

.kart-schema-columns li {
    display: flex;
    align-items: center;
    gap: var(--kart-space-2);
    padding: 2px 0;
    font-size: var(--kart-font-size-sm);
}

.kart-type-icon {
    width: 1.25rem;
    color: var(--kart-text-muted);
    text-align: center;
}

.kart-native-type {
    margin-left: auto;
    color: var(--kart-text-muted);
    font-family: var(--kart-font-mono);
    font-size: 0.75rem;
}

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

/* Tables inside cards */
.kart-card > .table-responsive > .table {
    margin-bottom: 0;
}

.kart-card .table > :not(caption) > * > * {
    padding: var(--kart-space-3) var(--kart-space-4);
}

.kart-card .table thead th {
    color: var(--kart-text-secondary);
    font-size: var(--kart-font-size-sm);
    font-weight: var(--kart-font-weight-medium);
    background: var(--kart-surface-2);
    white-space: nowrap;
}

.kart-card .table tbody tr:last-child > * {
    border-bottom: 0;
}

/* Status chips: always icon + label, never colour alone */
.kart-chip {
    display: inline-flex;
    align-items: center;
    gap: var(--kart-space-1);
    padding: 2px var(--kart-space-2);
    border-radius: var(--kart-radius-pill);
    font-size: var(--kart-font-size-sm);
    font-weight: var(--kart-font-weight-medium);
    background: var(--kart-surface-2);
    color: var(--kart-text-secondary);
    white-space: nowrap;
}

.kart-chip-success { color: var(--kart-color-success); background: rgba(var(--kart-color-success-rgb), 0.12); }
.kart-chip-danger  { color: var(--kart-color-danger);  background: rgba(var(--kart-color-danger-rgb), 0.12); }
.kart-chip-primary { color: var(--kart-color-primary); background: rgba(var(--kart-color-primary-rgb), 0.12); }

/* ---------- Auth (login) layout ---------- */
.kart-auth {
    flex: 1 0 auto;
    display: grid;
    place-items: center;
    padding: var(--kart-space-6) var(--kart-space-4);
}

.kart-auth-card {
    width: 100%;
    max-width: 400px;
}

.kart-auth-brand {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--kart-space-2);
    margin-bottom: var(--kart-space-5);
    font-size: 1.25rem;
    font-weight: var(--kart-font-weight-bold);
}

.kart-auth-brand .kart-brand-mark {
    width: 44px;
    height: 44px;
    font-size: 1rem;
    border-radius: var(--kart-radius-lg);
}

.kart-auth-brand img {
    height: 44px;
}

.kart-auth-theme {
    position: fixed;
    top: var(--kart-space-3);
    right: var(--kart-space-3);
}

/* ==========================================================================
   Dashboard builder
   ========================================================================== */
.kart-builder {
    --kart-builder-left: 260px;
    --kart-builder-right: 330px;
    display: grid;
    grid-template-columns: var(--kart-builder-left) minmax(0, 1fr) var(--kart-builder-right);
    grid-template-rows: auto minmax(0, 1fr);
    grid-template-areas:
        "bar bar bar"
        "explorer main props";
    height: calc(100vh - var(--kart-nav-height) - 1px);
    background: var(--kart-bg);
}

.kart-builder-bar {
    grid-area: bar;
    display: flex;
    align-items: center;
    gap: var(--kart-space-3);
    padding: var(--kart-space-2) var(--kart-space-4);
    background: var(--kart-surface);
    border-bottom: 1px solid var(--kart-border);
}

.kart-builder-title {
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.kart-builder-name {
    font-weight: var(--kart-font-weight-bold);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.kart-builder-meta,
.kart-builder-status {
    color: var(--kart-text-muted);
    font-size: var(--kart-font-size-sm);
}

.kart-builder-explorer,
.kart-builder-props {
    display: flex;
    flex-direction: column;
    min-height: 0;
    background: var(--kart-surface);
}

.kart-builder-explorer {
    grid-area: explorer;
    border-right: 1px solid var(--kart-border);
}

.kart-builder-props {
    grid-area: props;
    border-left: 1px solid var(--kart-border);
    overflow-y: auto;
}

.kart-builder-main {
    grid-area: main;
    display: flex;
    flex-direction: column;
    min-width: 0;
    min-height: 0;
}

.kart-panel-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--kart-space-2);
    padding: var(--kart-space-3) var(--kart-space-3) var(--kart-space-2);
}

.kart-panel-title {
    display: flex;
    align-items: center;
    margin: 0;
    font-size: var(--kart-font-size-base);
    font-weight: var(--kart-font-weight-bold);
}

.btn-icon-sm {
    width: 28px;
    height: 28px;
    color: var(--kart-text-secondary);
}

/* Explorer */
.kart-explorer-tree {
    flex: 1;
    overflow-y: auto;
    padding-bottom: var(--kart-space-4);
}

.kart-explorer-table > summary {
    display: flex;
    align-items: center;
    gap: var(--kart-space-2);
    padding: var(--kart-space-1) var(--kart-space-3);
    cursor: grab;
    list-style: none;
    font-size: var(--kart-font-size-sm);
    font-weight: var(--kart-font-weight-medium);
}

.kart-explorer-table > summary::-webkit-details-marker { display: none; }

.kart-explorer-table > summary::before {
    content: "\F285";
    font-family: bootstrap-icons;
    font-size: 0.7rem;
    color: var(--kart-text-muted);
    transition: transform var(--kart-transition);
}

.kart-explorer-table[open] > summary::before { transform: rotate(90deg); }

.kart-explorer-table > summary:hover,
.kart-explorer-column:hover,
.kart-explorer-column:focus-visible {
    background: var(--kart-surface-hover);
}

.kart-explorer-name {
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.kart-explorer-count {
    margin-left: auto;
    color: var(--kart-text-muted);
    font-size: 0.75rem;
}

.kart-explorer-columns {
    margin: 0;
    padding: 0;
    list-style: none;
}

.kart-explorer-column {
    display: flex;
    align-items: center;
    gap: var(--kart-space-2);
    padding: 3px var(--kart-space-3) 3px var(--kart-space-6);
    font-size: var(--kart-font-size-sm);
    cursor: grab;
    border-radius: var(--kart-radius-sm);
}

/* Toolbox */
.kart-toolbox {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--kart-space-1);
    padding: var(--kart-space-2) var(--kart-space-3);
    background: var(--kart-surface);
    border-bottom: 1px solid var(--kart-border);
}

.kart-toolbox-label {
    margin-right: var(--kart-space-1);
    color: var(--kart-text-muted);
    font-size: var(--kart-font-size-sm);
}

.kart-tool {
    display: inline-flex;
    align-items: center;
    gap: var(--kart-space-1);
    padding: var(--kart-space-1) var(--kart-space-2);
    border: 1px solid var(--kart-border);
    border-radius: var(--kart-radius-md);
    background: var(--kart-surface);
    color: var(--kart-text);
    font-size: var(--kart-font-size-sm);
    cursor: grab;
    transition: background-color var(--kart-transition), border-color var(--kart-transition);
}

.kart-tool:hover {
    border-color: var(--kart-color-primary);
    background: var(--kart-color-primary-subtle);
}

.kart-tool .bi { color: var(--kart-color-primary); }

/* Gridstack's drag helper is a clone of the toolbox button */
body > .kart-tool.ui-draggable-dragging { z-index: 2000; box-shadow: var(--kart-shadow-md); }

.kart-builder-alerts:empty { display: none; }
.kart-builder-alerts { padding: var(--kart-space-2) var(--kart-space-3) 0; }

/* Canvas */
.kart-canvas-wrap {
    position: relative;
    flex: 1;
    min-height: 0;
    overflow-y: auto;
    padding: var(--kart-space-2);
}

.kart-canvas-wrap .grid-stack {
    min-height: 100%;
}

.kart-canvas-empty {
    position: absolute;
    inset: var(--kart-space-6) var(--kart-space-6) auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--kart-space-1);
    padding: var(--kart-space-7) var(--kart-space-5);
    border: 2px dashed var(--kart-border-strong);
    border-radius: var(--kart-radius-lg);
    color: var(--kart-text-secondary);
    text-align: center;
    pointer-events: none;
}

.kart-canvas-empty .bi { font-size: 2rem; color: var(--kart-text-muted); }
.kart-canvas-empty[hidden] { display: none; }

.grid-stack-placeholder > .placeholder-content {
    border: 2px dashed var(--kart-color-primary);
    border-radius: var(--kart-radius-lg);
    background: var(--kart-color-primary-subtle);
}

/* Widget frame (builder and viewer) */
.kart-widget {
    display: flex;
    flex-direction: column;
    height: 100%;
    background: var(--kart-surface);
    border: 1px solid var(--kart-border);
    border-radius: var(--kart-radius-lg);
    box-shadow: var(--kart-shadow-sm);
    overflow: hidden;
    transition: border-color var(--kart-transition), box-shadow var(--kart-transition);
}

.kart-builder .kart-widget { cursor: pointer; }
.kart-builder .kart-widget:hover { border-color: var(--kart-border-strong); }

.kart-widget.kart-selected {
    border-color: var(--kart-color-primary);
    box-shadow: 0 0 0 2px var(--kart-focus-ring);
}

.kart-widget.kart-drop-target {
    border-color: var(--kart-color-primary);
    border-style: dashed;
    background: var(--kart-color-primary-subtle);
}

.kart-widget-head {
    display: flex;
    align-items: center;
    gap: var(--kart-space-2);
    min-height: 40px;
    padding: var(--kart-space-2) var(--kart-space-2) var(--kart-space-1) var(--kart-space-3);
}

.kart-builder .kart-widget-head { cursor: move; }

.kart-widget-type { color: var(--kart-text-muted); }

.kart-widget-title {
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: var(--kart-font-size-sm);
    font-weight: var(--kart-font-weight-bold);
}

.kart-widget-badge {
    flex-shrink: 0;
    padding: 0 var(--kart-space-2);
    border-radius: var(--kart-radius-pill);
    background: var(--kart-surface-2);
    color: var(--kart-text-muted);
    font-size: 0.6875rem;
}

.kart-widget-actions {
    display: flex;
    margin-left: auto;
    opacity: 0;
    transition: opacity var(--kart-transition);
}

.kart-widget:hover .kart-widget-actions,
.kart-widget:focus-within .kart-widget-actions,
.kart-widget.kart-selected .kart-widget-actions {
    opacity: 1;
}

.kart-widget-body {
    position: relative;
    flex: 1;
    min-height: 0;
    display: flex;
    flex-direction: column;
    padding: 0 var(--kart-space-3) var(--kart-space-2);
}

.kart-chart {
    position: relative;
    flex: 1;
    min-height: 0;
}

.kart-widget-message,
.kart-widget-placeholder {
    display: flex;
    flex: 1;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--kart-space-2);
    color: var(--kart-text-muted);
    font-size: var(--kart-font-size-sm);
    text-align: center;
}

.kart-widget-placeholder-icon { font-size: 1.75rem; opacity: 0.5; }
.kart-widget-error { color: var(--kart-color-danger); }

.kart-widget-note {
    padding-top: var(--kart-space-1);
    color: var(--kart-text-muted);
    font-size: 0.75rem;
}

.kart-table-scroll {
    flex: 1;
    min-height: 0;
    overflow: auto;
}

.kart-data-table {
    margin: 0;
    font-size: var(--kart-font-size-sm);
    font-variant-numeric: tabular-nums;
}

.kart-data-table thead th {
    position: sticky;
    top: 0;
    z-index: 1;
    background: var(--kart-surface-2);
    color: var(--kart-text-secondary);
    font-weight: var(--kart-font-weight-medium);
    white-space: nowrap;
}

.kart-kpi {
    display: flex;
    flex: 1;
    flex-direction: column;
    justify-content: center;
}

.kart-kpi-value {
    color: var(--kart-text);
    font-size: clamp(1.5rem, 4vw, 2.5rem);
    font-weight: var(--kart-font-weight-bold);
    line-height: 1.1;
}

.kart-kpi-label {
    margin-top: var(--kart-space-1);
    color: var(--kart-text-secondary);
    font-size: var(--kart-font-size-sm);
}

/* KPI comparison: arrow + signed change + words; colour only says good / bad */
.kart-kpi-delta {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    gap: 0 var(--kart-space-1);
    margin-top: var(--kart-space-1);
    color: var(--kart-text-secondary);
    font-size: var(--kart-font-size-sm);
}
.kart-kpi-delta strong { font-variant-numeric: tabular-nums; }
.kart-kpi-good > .bi, .kart-kpi-good > strong { color: var(--kart-color-success); }
.kart-kpi-bad > .bi, .kart-kpi-bad > strong { color: var(--kart-color-danger); }
.kart-kpi-neutral > .bi { color: var(--kart-text-muted); }

.kart-kpi-spark {
    width: 100%;
    height: 28px;
    margin-top: var(--kart-space-2);
    overflow: visible;
}
.kart-kpi-spark polyline { fill: none; stroke: var(--kart-chart-1); stroke-width: 2; stroke-linejoin: round; stroke-linecap: round; }
.kart-kpi-spark-note { margin-top: var(--kart-space-1); color: var(--kart-text-muted); font-size: 0.75rem; }

/* Status pills (theme status colours, always with an icon and a label) */
.kart-status {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0 0.4rem;
    border-radius: var(--kart-radius-pill);
    font-size: 0.75rem;
    font-weight: 600;
    line-height: 1.5;
    white-space: nowrap;
    vertical-align: middle;
}
.kart-status-good { color: var(--kart-color-success); background: rgba(var(--kart-color-success-rgb), 0.12); }
.kart-status-warning { color: var(--kart-color-warning); background: rgba(var(--kart-color-warning-rgb), 0.14); }
.kart-status-serious { color: var(--kart-color-serious); background: rgba(var(--kart-color-serious-rgb), 0.14); }
.kart-status-critical { color: var(--kart-color-danger); background: rgba(var(--kart-color-danger-rgb), 0.12); }

/* In-cell data bars (the text stays on top) */
.kart-data-bar-cell { position: relative; }
.kart-data-bar {
    position: absolute;
    top: 20%;
    bottom: 20%;
    border-radius: 2px;
    background: rgba(var(--kart-color-primary-rgb), 0.18);
    pointer-events: none;
}
.kart-data-bar-cell > .kart-cell-text { position: relative; }

/* Gauge: half dial with the value written underneath */
.kart-gauge { display: flex; flex: 1; flex-direction: column; min-height: 0; }
.kart-gauge-chart { flex: 1; min-height: 60px; }
.kart-gauge-readout { display: flex; flex-direction: column; align-items: center; gap: 0.15rem; text-align: center; }
.kart-gauge-readout .kart-kpi-value { font-size: clamp(1.25rem, 3vw, 2rem); }
.kart-gauge-readout .kart-kpi-label { margin-top: 0; }
.kart-gauge-scale {
    display: flex;
    justify-content: space-between;
    gap: var(--kart-space-2);
    width: 100%;
    color: var(--kart-text-muted);
    font-size: 0.6875rem;
    font-variant-numeric: tabular-nums;
}

/* Text widgets (server-rendered, sanitised Markdown) */
.kart-markdown { overflow: auto; flex: 1; color: var(--kart-text); line-height: 1.5; }
.kart-markdown-small { font-size: var(--kart-font-size-sm); }
.kart-markdown-large { font-size: 1.125rem; }
.kart-markdown > :first-child { margin-top: 0; }
.kart-markdown > :last-child { margin-bottom: 0; }
.kart-markdown h1, .kart-markdown h2, .kart-markdown h3, .kart-markdown h4 { margin: 0.75em 0 0.35em; font-weight: var(--kart-font-weight-bold); line-height: 1.25; }
.kart-markdown h1 { font-size: 1.5em; }
.kart-markdown h2 { font-size: 1.25em; }
.kart-markdown h3 { font-size: 1.1em; }
.kart-markdown h4 { font-size: 1em; }
.kart-markdown blockquote { margin: 0.5em 0; padding-left: 0.75em; border-left: 3px solid var(--kart-border-strong); color: var(--kart-text-secondary); }
.kart-markdown code { padding: 0 0.25em; border-radius: 4px; background: var(--kart-surface-2); font-size: 0.875em; }
.kart-markdown pre { padding: 0.5em 0.75em; border-radius: 6px; background: var(--kart-surface-2); overflow: auto; }
.kart-markdown pre code { padding: 0; background: none; }
.kart-markdown table { width: 100%; margin: 0.5em 0; border-collapse: collapse; font-size: 0.9em; }
.kart-markdown th, .kart-markdown td { padding: 0.25em 0.5em; border-bottom: 1px solid var(--kart-border); text-align: left; }
.kart-markdown ul.contains-task-list, .kart-markdown li.task-list-item { list-style: none; }

/* Image widgets */
.kart-image-box { display: flex; flex: 1; min-height: 0; align-items: center; justify-content: center; overflow: hidden; }
.kart-image { max-width: 100%; max-height: 100%; }
.kart-image-contain { object-fit: contain; }
.kart-image-cover { width: 100%; height: 100%; object-fit: cover; border-radius: 4px; }

/* Heatmap legend: the value range in words, with the shade ramp beside it */
.kart-heatmap-legend {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--kart-space-2);
    margin-top: var(--kart-space-1);
    color: var(--kart-text-muted);
    font-size: 0.6875rem;
    font-variant-numeric: tabular-nums;
}
.kart-heatmap-ramp { width: 6rem; height: 8px; border-radius: 4px; }

/* Conditional formatting rules in the properties panel */
.kart-format-rule {
    display: flex;
    flex-direction: column;
    gap: var(--kart-space-1);
    margin-bottom: var(--kart-space-2);
    padding: var(--kart-space-2);
    border: 1px solid var(--kart-border);
    border-radius: var(--kart-radius-sm, 6px);
}
.kart-format-controls { display: flex; flex-wrap: wrap; gap: var(--kart-space-1); }
.kart-format-controls > * { flex: 1 1 7rem; min-width: 0; }
.kart-format-controls > .kart-format-number { flex: 0 1 5.5rem; }

/* Properties panel */
.kart-props { padding-bottom: var(--kart-space-5); }

.kart-props-section {
    padding: var(--kart-space-2) var(--kart-space-3) var(--kart-space-3);
    border-top: 1px solid var(--kart-border);
}

.kart-props-heading {
    margin: var(--kart-space-1) 0 var(--kart-space-2);
    color: var(--kart-text-secondary);
    font-size: 0.75rem;
    font-weight: var(--kart-font-weight-bold);
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.kart-props-actions {
    display: flex;
    gap: var(--kart-space-2);
    padding: var(--kart-space-3);
    border-top: 1px solid var(--kart-border);
}

.kart-source-pill {
    display: flex;
    align-items: center;
    gap: var(--kart-space-2);
    margin-bottom: var(--kart-space-2);
    padding: var(--kart-space-1) var(--kart-space-2);
    border-radius: var(--kart-radius-md);
    background: var(--kart-surface-2);
    font-size: var(--kart-font-size-sm);
}

.kart-slot { margin-bottom: var(--kart-space-3); }

.kart-slot-label {
    margin-bottom: var(--kart-space-1);
    font-size: var(--kart-font-size-sm);
    font-weight: var(--kart-font-weight-medium);
}

.kart-required { color: var(--kart-color-danger); }

.kart-slot-body {
    display: flex;
    flex-direction: column;
    gap: var(--kart-space-2);
    min-height: 40px;
    padding: var(--kart-space-1);
    border: 1px dashed var(--kart-border-strong);
    border-radius: var(--kart-radius-md);
    transition: background-color var(--kart-transition), border-color var(--kart-transition);
}

.kart-dragging-field .kart-slot-body { border-color: var(--kart-color-primary); }
.kart-slot-accept .kart-slot-body { border-style: solid; border-color: var(--kart-color-primary); background: var(--kart-color-primary-subtle); }
.kart-slot-reject .kart-slot-body { border-style: solid; border-color: var(--kart-color-danger); }

.kart-slot-empty {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 30px;
    color: var(--kart-text-muted);
    font-size: 0.75rem;
}

.kart-chip-field {
    padding: var(--kart-space-1) var(--kart-space-2) var(--kart-space-2);
    border: 1px solid var(--kart-border);
    border-radius: var(--kart-radius-md);
    background: var(--kart-surface);
}

.kart-chip-missing { border-color: var(--kart-color-danger); }
.kart-chip-missing .kart-type-icon { color: var(--kart-color-danger); }

.kart-chip-head {
    display: flex;
    align-items: center;
    gap: var(--kart-space-1);
    font-size: var(--kart-font-size-sm);
}

.kart-chip-name {
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-weight: var(--kart-font-weight-medium);
}

.kart-chip-controls {
    display: flex;
    flex-wrap: wrap;
    gap: var(--kart-space-1);
    margin-top: var(--kart-space-1);
}

.kart-chip-controls > .form-select,
.kart-chip-controls > .form-control {
    flex: 1 1 8rem;
    width: auto;
}

.kart-color-row {
    display: flex;
    align-items: center;
    gap: var(--kart-space-2);
    margin-bottom: var(--kart-space-1);
}

.kart-color-row .form-select { flex: 0 0 9.5rem; width: 9.5rem; }
.kart-color-row .form-control-color { flex: 0 0 2.25rem; width: 2.25rem; padding: 2px; }

.kart-swatch {
    flex: 0 0 auto;
    width: 14px;
    height: 14px;
    border-radius: var(--kart-radius-sm);
    box-shadow: inset 0 0 0 1px var(--kart-border);
}

.kart-color-label {
    flex: 1;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: var(--kart-font-size-sm);
}

/* ==========================================================================
   My dashboards + viewer
   ========================================================================== */
.kart-dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(min(100%, 320px), 1fr));
    gap: var(--kart-space-4);
}

.kart-dashboard-card {
    display: flex;
    align-items: center;
    gap: var(--kart-space-3);
    padding: var(--kart-space-4);
    background: var(--kart-surface);
    border: 1px solid var(--kart-border);
    border-radius: var(--kart-radius-lg);
    box-shadow: var(--kart-shadow-sm);
    color: var(--kart-text);
    text-decoration: none;
    transition: border-color var(--kart-transition), box-shadow var(--kart-transition);
}

.kart-dashboard-card:hover,
.kart-dashboard-card:focus-visible {
    border-color: var(--kart-color-primary);
    box-shadow: var(--kart-shadow-md);
    color: var(--kart-text);
}

.kart-dashboard-card-icon {
    display: grid;
    flex: 0 0 auto;
    place-items: center;
    width: 44px;
    height: 44px;
    border-radius: var(--kart-radius-md);
    background: var(--kart-color-primary-subtle);
    color: var(--kart-color-primary);
    font-size: 1.25rem;
}

.kart-dashboard-card-body {
    display: flex;
    flex: 1;
    flex-direction: column;
    min-width: 0;
}

.kart-dashboard-card-title { font-weight: var(--kart-font-weight-bold); }

.kart-dashboard-card-desc {
    color: var(--kart-text-secondary);
    font-size: var(--kart-font-size-sm);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.kart-dashboard-card-meta {
    margin-top: var(--kart-space-1);
    color: var(--kart-text-muted);
    font-size: 0.75rem;
}

.kart-viewer .kart-main { padding-top: var(--kart-space-4); }

.kart-viewer-grid { margin: 0 calc(-1 * var(--kart-space-2)); }

.kart-filter-bar {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-end;
    gap: var(--kart-space-3);
    margin-bottom: var(--kart-space-3);
    padding: var(--kart-space-3);
    background: var(--kart-surface);
    border: 1px solid var(--kart-border);
    border-radius: var(--kart-radius-lg);
}

.kart-filter-bar[hidden] { display: none; }

.kart-filter-bar-label {
    align-self: center;
    color: var(--kart-text-secondary);
    font-size: var(--kart-font-size-sm);
    font-weight: var(--kart-font-weight-medium);
}

.kart-filter { display: flex; flex-direction: column; gap: 2px; }

.kart-filter-label {
    color: var(--kart-text-muted);
    font-size: 0.75rem;
}

.kart-filter-range {
    display: flex;
    align-items: center;
    gap: var(--kart-space-1);
}

.kart-filter-range .form-control { width: 9.5rem; }

.kart-multi-button {
    display: inline-flex;
    align-items: center;
    gap: var(--kart-space-1);
    max-width: 16rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.kart-multi-button .kart-filter-label { font-size: var(--kart-font-size-sm); }

.kart-multi-menu { width: 18rem; }

.kart-multi-list {
    max-height: 16rem;
    margin-top: var(--kart-space-2);
    overflow-y: auto;
    font-size: var(--kart-font-size-sm);
}

/* Drill-down: breadcrumb inside a widget, and the detail side panel */
.kart-drill-crumbs { padding: 0 var(--kart-space-3) var(--kart-space-1); font-size: var(--kart-font-size-sm); }
.kart-drill-crumbs[hidden] { display: none; }
.kart-drill-crumbs .breadcrumb { flex-wrap: nowrap; overflow: hidden; white-space: nowrap; }
.kart-detail-panel { --bs-offcanvas-width: min(44rem, 100vw); background: var(--kart-surface); color: var(--kart-text); }
.kart-detail-widget { position: relative; display: flex; flex-direction: column; height: calc(100vh - 9rem); min-height: 16rem; }

/* Builder: drill-down levels and detail columns */
.kart-drill-level { display: grid; grid-template-columns: auto minmax(0, 1fr) auto auto; align-items: center; gap: var(--kart-space-1); margin-bottom: var(--kart-space-1); }
.kart-detail-columns { max-height: 12rem; margin-bottom: var(--kart-space-2); overflow-y: auto; }

/* Builder: how a dashboard filter maps to each dataset */
.kart-mapping-list { display: flex; flex-direction: column; gap: var(--kart-space-1); }
.kart-mapping-row { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr); align-items: center; gap: var(--kart-space-2); }
.kart-mapping-name { overflow: hidden; font-size: var(--kart-font-size-sm); text-overflow: ellipsis; white-space: nowrap; }

.kart-cross-chips { display: flex; flex-wrap: wrap; gap: var(--kart-space-2); align-self: center; }
.kart-cross-chips:empty { display: none; }

.kart-cross-chip {
    display: inline-flex;
    align-items: center;
    gap: var(--kart-space-1);
    max-width: 22rem;
    padding: 2px 4px 2px var(--kart-space-2);
    color: var(--kart-text);
    font-size: var(--kart-font-size-sm);
    background: var(--kart-surface-2);
    border: 1px solid var(--kart-border);
    border-radius: 999px;
}
.kart-cross-chip > span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.kart-filter-actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--kart-space-2);
    margin-left: auto;
}

.kart-widget-actions-visible { opacity: 1; }

/* "Last refreshed" time in the viewer's widget header (full date and cache note in its tooltip) */
.kart-widget-time {
    flex-shrink: 0;
    margin-left: auto;
    color: var(--kart-text-muted);
    font-size: 0.6875rem;
    font-variant-numeric: tabular-nums;
    white-space: nowrap;
}
.kart-widget-notice {
    position: absolute;
    left: 50%;
    bottom: var(--kart-space-2, 0.5rem);
    transform: translateX(-50%);
    max-width: calc(100% - 1rem);
    padding: 0.25rem 0.625rem;
    border-radius: var(--kart-radius-pill);
    background: var(--kart-surface-2);
    border: 1px solid var(--kart-border);
    color: var(--kart-text);
    font-size: 0.75rem;
    box-shadow: var(--kart-shadow-sm, 0 1px 3px rgba(0, 0, 0, 0.15));
    z-index: 5;
}
.kart-widget-time:not([hidden]) + .kart-widget-actions { margin-left: var(--kart-space-1, 0.25rem); }

/* Widget box styles (chart style settings; token-based, applied by js/widgets/settings.js) */
.kart-widget.kart-widget-bg-subtle { background: var(--kart-surface-2); }
.kart-widget.kart-widget-bg-transparent { background: transparent; box-shadow: none; }
.kart-widget.kart-widget-border-none { border-color: transparent; }
.kart-widget.kart-widget-border-strong { border-color: var(--kart-border-strong); }
.kart-widget-title.kart-title-center { flex: 1; text-align: center; }
.kart-widget-title.kart-title-end { flex: 1; text-align: end; }

/* Palette editor */
.kart-swatches { display: inline-flex; gap: 2px; flex-wrap: wrap; vertical-align: middle; }
.kart-palette-rows { display: grid; gap: var(--kart-space-2); }
.kart-palette-row { display: flex; align-items: center; gap: var(--kart-space-2); }
.kart-palette-row .form-control-color { width: 2.5rem; flex-shrink: 0; }
.kart-palette-row .kart-hex { width: 7rem; font-family: var(--kart-font-mono); }
.kart-palette-index { width: 1.5rem; color: var(--kart-text-muted); font-size: var(--kart-font-size-sm); text-align: end; }
.kart-preview {
    padding: var(--kart-space-3);
    border: 1px solid var(--kart-border);
    border-radius: var(--kart-radius-md);
    background: var(--kart-chart-surface);
    color: var(--kart-text);
}
.kart-preview-title { font-size: var(--kart-font-size-sm); font-weight: var(--kart-font-weight-bold); margin-bottom: var(--kart-space-2); }
.kart-preview-chart { position: relative; height: 140px; margin-bottom: var(--kart-space-2); }
.kart-check { display: flex; gap: var(--kart-space-2); align-items: baseline; font-size: var(--kart-font-size-sm); margin-bottom: var(--kart-space-1); }
.kart-check-fail { color: var(--kart-color-danger); }
.kart-check-warning { color: var(--kart-color-warning); }
.kart-check-ok { color: var(--kart-color-success); }

.kart-explorer-group {
    padding: var(--kart-space-2) var(--kart-space-3) var(--kart-space-1);
    color: var(--kart-text-muted);
    font-size: 0.6875rem;
    font-weight: var(--kart-font-weight-bold);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

/* Custom SQL datasets */
.kart-sql-text, .kart-sql-code {
    font-family: var(--kart-font-mono);
    font-size: var(--kart-font-size-sm);
    tab-size: 4;
}
.kart-sql-code {
    margin: 0;
    padding: var(--kart-space-3);
    max-height: 420px;
    overflow: auto;
    white-space: pre;
    background: var(--kart-surface-2);
    border-radius: var(--kart-radius-md);
    color: var(--kart-text);
}
.kart-sql-preview { max-height: 520px; }
.kart-sql-preview td { max-width: 18rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.kart-diff { font-family: var(--kart-font-mono); font-size: 0.75rem; white-space: pre; overflow: auto; max-height: 320px; margin: 0; }
.kart-diff-add { background: rgba(var(--kart-color-success-rgb), 0.14); }
.kart-diff-del { background: rgba(var(--kart-color-danger-rgb), 0.14); }

/* Join wizard and calculated fields */
.kart-step {
    display: inline-flex; align-items: center; justify-content: center;
    width: 1.5rem; height: 1.5rem; margin-right: var(--kart-space-2);
    border-radius: var(--kart-radius-pill);
    background: var(--kart-color-primary-subtle); color: var(--kart-color-primary);
    font-size: var(--kart-font-size-sm); font-weight: 600;
}
.kart-join-step {
    padding: var(--kart-space-3);
    border: 1px solid var(--kart-border);
    border-radius: var(--kart-radius-md);
    background: var(--kart-surface-2);
}
.kart-join-col { flex: 1 1 14rem; width: auto; }
.kart-join-columns legend { font-size: var(--kart-font-size-sm); }
.kart-col-check { width: 2rem; }
.kart-sticky-top { position: sticky; top: var(--kart-space-4); }
.kart-calc-expr { font-family: var(--kart-font-mono); font-size: var(--kart-font-size-sm); }
.kart-calc-col { background: rgba(var(--kart-color-primary-rgb), 0.10); }

/* Builder: generic option controls */
.kart-option-group { border-top: 1px solid var(--kart-border); padding-top: var(--kart-space-2); margin-top: var(--kart-space-2); }
.kart-option-group > summary { cursor: pointer; font-size: var(--kart-font-size-sm); font-weight: var(--kart-font-weight-medium); color: var(--kart-text-secondary); margin-bottom: var(--kart-space-2); }
.kart-inherited { color: var(--kart-text-muted); font-size: 0.75rem; }

.kart-widget-body.kart-loading { opacity: 0.55; transition: opacity var(--kart-transition); }

/* Narrow screens: stack the three panels */
@media (max-width: 991.98px) {
    .kart-builder {
        grid-template-columns: minmax(0, 1fr);
        grid-template-rows: auto auto minmax(60vh, 1fr) auto;
        grid-template-areas: "bar" "explorer" "main" "props";
        height: auto;
    }

    .kart-builder-explorer { max-height: 40vh; border-right: 0; border-bottom: 1px solid var(--kart-border); }
    .kart-builder-props { border-left: 0; border-top: 1px solid var(--kart-border); }
}

/* Validation */
.field-validation-error,
.validation-summary-errors {
    color: var(--kart-color-danger);
    font-size: var(--kart-font-size-sm);
}

.validation-summary-errors ul {
    margin: 0;
    padding-left: var(--kart-space-4);
}

.input-validation-error {
    border-color: var(--kart-color-danger);
}

/* Focus visibility for keyboard users */
:focus-visible {
    outline: 2px solid var(--kart-color-primary);
    outline-offset: 2px;
}

/* ---------- Print view (viewer.js setPrintMode; also turned on by Ctrl+P) ----------
   The saved layout becomes a CSS grid at a landscape paper width, so pages break between widgets rather than through
   them; controls are hidden and the active filters are written out instead of the filter bar. */
.kart-print-header { display: none; }
.kart-detail-panel [data-kart-detail-status]:empty { display: none; }

.kart-print-bar {
    position: sticky;
    top: 0;
    z-index: 1030;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--kart-space-2);
    padding: var(--kart-space-2) var(--kart-space-4);
    background: var(--kart-surface);
    border-bottom: 1px solid var(--kart-border);
    box-shadow: var(--kart-shadow-sm, none);
}
.kart-print-bar[hidden] { display: none; }

.kart-print-mode .kart-nav,
.kart-print-mode .kart-footer,
.kart-print-mode .kart-page-header .btn,
.kart-print-mode .kart-page-header form,
.kart-print-mode .kart-page-header .breadcrumb,
.kart-print-mode [data-kart-auto-refresh],
.kart-print-mode .kart-filter-bar,
.kart-print-mode .kart-widget-actions,
.kart-print-mode .kart-widget-time,
.kart-print-mode .kart-widget-notice,
.kart-print-mode .alert .btn,
.kart-print-mode .alert .btn-close,
.kart-print-mode .kart-drill-crumbs button { display: none !important; }
.kart-print-mode .kart-drill-crumbs .breadcrumb-item:not(.active) { display: none; }

.kart-print-mode .kart-print-header { display: block; margin-bottom: var(--kart-space-2); color: var(--kart-text-muted); }
.kart-print-mode .kart-viewer { width: 1040px; max-width: none; margin: 0 auto; }
.kart-print-mode .kart-viewer-grid.grid-stack {
    display: grid !important;
    grid-template-columns: repeat(12, minmax(0, 1fr));
    height: auto !important;
    min-height: 0 !important;
}
.kart-print-mode .kart-viewer-grid > .grid-stack-item {
    position: relative !important;
    top: auto !important;
    left: auto !important;
    width: auto !important;
    height: auto !important;
    min-height: 0 !important;
    transform: none !important;
    break-inside: avoid;
}
.kart-print-mode .kart-widget { box-shadow: none; }

@media print {
    @page { size: landscape; margin: 10mm; }
    .kart-print-bar { display: none !important; }
    body { background: #fff; -webkit-print-color-adjust: exact; print-color-adjust: exact; }
    .kart-print-mode .kart-main { padding: 0; }
    .kart-detail-panel, .offcanvas-backdrop, .modal-backdrop { display: none !important; }
}