/* Layout Renderer — shared CSS for all layout node types */

.layout-renderer {
    font-family: var(--mud-typography-body1-family, 'Roboto', sans-serif);
    font-size: var(--mud-typography-body1-size, 14px);
    line-height: 1.6;
    color: var(--mud-palette-text-primary, #333);
    width: 100%;
}

/* Stack nodes */
.layout-stack {
    display: flex;
    gap: 4px;
}
.layout-stack-vertical {
    flex-direction: column;
}
.layout-stack-horizontal {
    flex-direction: row;
}

/* Grid & Columns */
.layout-grid,
.layout-columns {
    display: grid;
    gap: 4px;
}

/* Section */
.layout-section {
    margin-bottom: 8px;
}
.layout-section-label {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--mud-palette-text-secondary, #666);
    margin-bottom: 6px;
    padding-bottom: 4px;
    border-bottom: 1px solid var(--mud-palette-lines-default, #e0e0e0);
}

/* Repeater */
.layout-repeater {
    display: flex;
    flex-direction: column;
}

/* Page Break */
.layout-page-break {
    break-after: page;
    height: 0;
}

/* Field Block */
.layout-field-block {
    display: inline;
}
.layout-field-label {
    font-size: 11px;
    font-weight: 500;
    color: var(--mud-palette-text-secondary, #888);
    margin-right: 4px;
}
.layout-field-value {
    display: inline;
}
.layout-field-empty {
    color: var(--mud-palette-text-disabled, #bbb);
}
.layout-field-placeholder {
    color: var(--mud-palette-text-disabled, #bbb);
    font-style: italic;
}

/* Template Block */
.layout-template-block {
    display: inline;
}
.layout-template-field {
    /* rendered field values within template text */
}
.layout-template-placeholder {
    color: var(--mud-palette-text-disabled, #bbb);
    font-style: italic;
    background: rgba(0, 0, 0, 0.04);
    border-radius: 2px;
    padding: 0 2px;
}

/* Static Block */
.layout-static-text {
    display: block;
}
.layout-divider {
    border: none;
    border-top: 1px solid var(--mud-palette-lines-default, #e0e0e0);
    margin: 8px 0;
}
.layout-divider-dashed {
    border-top-style: dashed;
}
.layout-divider-dotted {
    border-top-style: dotted;
}
.layout-divider-vertical {
    display: inline-block;
    width: 0;
    min-height: 1.5rem;
    border-top: none;
    border-left: 1px solid var(--mud-palette-lines-default, #e0e0e0);
    margin: 0 8px;
    vertical-align: middle;
}
.layout-divider-labeled {
    display: flex;
    align-items: center;
    gap: 8px;
    border: none;
    color: var(--mud-palette-text-secondary, #666);
}
.layout-divider-labeled::before,
.layout-divider-labeled::after {
    content: "";
    flex: 1;
    border-top: 1px solid var(--mud-palette-lines-default, #e0e0e0);
}
.layout-spacer {
    display: block;
}
.layout-static-image {
    display: block;
    max-width: 100%;
    height: auto;
}

/* Formula Block */
.layout-formula-block {
    display: inline;
}

/* Conditional — no special styling, just a wrapper */
.layout-conditional {
    display: block;
}

/* Advanced panel catalog */
.layout-rows,
.layout-wrap,
.layout-dock,
.layout-uniform-grid,
.layout-split,
.layout-resizable-split,
.layout-tabs,
.layout-wizard,
.layout-stepper,
.layout-scroll,
.layout-virtualized {
    width: 100%;
}

.layout-grid-cell,
.layout-rows-cell,
.layout-uniform-grid-cell,
.layout-wrap-item,
.layout-split-pane,
.layout-virtualized-item {
    min-width: 0;
}

.layout-masonry-item {
    break-inside: avoid;
    margin-bottom: 12px;
}

.layout-split-separator {
    align-self: stretch;
    min-width: 6px;
    min-height: 6px;
    border: none;
    border-radius: 999px;
    background: var(--mud-palette-lines-default, #e0e0e0);
    cursor: col-resize;
}

.layout-split-vertical .layout-split-separator {
    cursor: row-resize;
}

.layout-card,
.layout-group-box,
.layout-expander,
.layout-accordion-item {
    border: 1px solid var(--mud-palette-lines-default, #e0e0e0);
    border-radius: 8px;
    background: var(--mud-palette-surface, #fff);
}

.layout-card {
    box-shadow: 0 calc(var(--layout-card-elevation, 1) * 1px) calc(var(--layout-card-elevation, 1) * 3px) rgba(0, 0, 0, 0.12);
    overflow: hidden;
}

.layout-card-body,
.layout-card-header,
.layout-card-footer,
.layout-group-box,
.layout-expander-body,
.layout-accordion-body,
.layout-tab-panel,
.layout-wizard-body,
.layout-stepper-body {
    padding: 12px;
}

.layout-card-header,
.layout-card-footer,
.layout-expander-header,
.layout-accordion-header {
    background: rgba(0, 0, 0, 0.02);
}

.layout-group-box-label,
.layout-section-description,
.layout-group-box-description {
    color: var(--mud-palette-text-secondary, #666);
}

.layout-expander-header,
.layout-accordion-header,
.layout-tab,
.layout-carousel-arrow,
.layout-carousel-dot {
    font: inherit;
    cursor: pointer;
}

.layout-expander-header,
.layout-accordion-header {
    width: 100%;
    border: none;
    padding: 10px 12px;
    text-align: left;
    color: inherit;
}

.layout-tab-list {
    display: flex;
    gap: 4px;
    border-bottom: 1px solid var(--mud-palette-lines-default, #e0e0e0);
}

.layout-tab {
    border: none;
    border-bottom: 2px solid transparent;
    background: transparent;
    padding: 8px 12px;
}

.layout-tab-active {
    border-bottom-color: var(--mud-palette-primary, #1976d2);
    color: var(--mud-palette-primary, #1976d2);
}

.layout-wizard-steps,
.layout-stepper-steps {
    display: flex;
    gap: 12px;
    list-style: none;
    margin: 0 0 12px;
    padding: 0;
}

.layout-stepper-vertical .layout-stepper-steps {
    flex-direction: column;
}

.layout-wizard-step,
.layout-stepper-step {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--mud-palette-text-secondary, #666);
}

.layout-wizard-step-active,
.layout-stepper-step-current {
    color: var(--mud-palette-primary, #1976d2);
    font-weight: 600;
}

.layout-stepper-marker {
    display: inline-grid;
    place-items: center;
    width: 1.5rem;
    height: 1.5rem;
    border-radius: 999px;
    background: var(--mud-palette-lines-default, #e0e0e0);
}

.layout-stepper-step-complete .layout-stepper-marker,
.layout-stepper-step-current .layout-stepper-marker {
    background: var(--mud-palette-primary, #1976d2);
    color: #fff;
}

.layout-carousel {
    position: relative;
}

.layout-carousel-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    border: none;
    border-radius: 999px;
    background: rgba(0, 0, 0, 0.5);
    color: #fff;
    width: 2rem;
    height: 2rem;
}

.layout-carousel-prev {
    left: 0.5rem;
}

.layout-carousel-next {
    right: 0.5rem;
}

.layout-carousel-dots {
    display: flex;
    justify-content: center;
    gap: 6px;
    margin-top: 8px;
}

.layout-carousel-dot {
    width: 0.6rem;
    height: 0.6rem;
    border: none;
    border-radius: 999px;
    background: var(--mud-palette-lines-default, #e0e0e0);
}

.layout-carousel-dot-active {
    background: var(--mud-palette-primary, #1976d2);
}

.layout-scroll {
    border-radius: 6px;
}

.layout-scroll-shadow {
    box-shadow: inset 0 -12px 12px -12px rgba(0, 0, 0, 0.25);
}

/* Display/value/media/action controls */
.layout-rich-text,
.layout-markdown,
.layout-paragraph,
.layout-summary-control,
.layout-legal-text {
    max-width: 72ch;
}

.layout-heading-control,
.layout-paragraph,
.layout-label-control,
.layout-caption-control,
.layout-quote-control,
.layout-summary-control,
.layout-legal-text {
    overflow-wrap: anywhere;
}

.layout-text-align-center {
    text-align: center;
}

.layout-text-align-end {
    text-align: right;
}

.layout-text-variant-title {
    font-size: 1.35rem;
    font-weight: 600;
}

.layout-text-variant-subtitle {
    font-size: 1.1rem;
    font-weight: 500;
}

.layout-text-variant-caption,
.layout-caption-control,
.layout-legal-text {
    color: var(--mud-palette-text-secondary, #666);
    font-size: 0.85rem;
}

.layout-static-text,
.layout-paragraph,
.layout-summary-control {
    display: -webkit-box;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.layout-required-indicator {
    color: var(--mud-palette-error, #b3261e);
    margin-left: 2px;
}

.layout-code-block,
.layout-json-viewer {
    overflow: auto;
    padding: 12px;
    border-radius: 8px;
    background: rgba(0, 0, 0, 0.06);
    font-family: var(--mud-typography-monospace-family, monospace);
    white-space: pre-wrap;
}

.layout-inline-code {
    padding: 0 4px;
    border-radius: 4px;
    background: rgba(0, 0, 0, 0.06);
    font-family: var(--mud-typography-monospace-family, monospace);
}

.layout-quote-control {
    margin: 0;
    padding: 8px 12px;
    border-left: 4px solid var(--mud-palette-lines-default, #e0e0e0);
    color: var(--mud-palette-text-secondary, #666);
}

.layout-quote-control footer {
    margin-top: 4px;
    font-size: 0.85rem;
}

.layout-callout,
.layout-alert,
.layout-result-control {
    position: relative;
    display: flex;
    gap: 8px;
    align-items: flex-start;
    padding: 10px 12px;
    border: 1px solid var(--layout-tone-border, var(--mud-palette-lines-default, #e0e0e0));
    border-radius: 8px;
    background: var(--layout-tone-bg, rgba(0, 0, 0, 0.03));
}

.layout-control-close {
    position: absolute;
    top: 4px;
    right: 6px;
    border: none;
    background: transparent;
    cursor: pointer;
}

.layout-control-icon {
    font-weight: 600;
}

.layout-highlighter-control mark {
    border-radius: 2px;
    background: #fff59d;
    color: inherit;
}

.layout-footnote {
    display: inline-flex;
    gap: 4px;
    font-size: 0.85rem;
}

.layout-definition {
    display: grid;
    gap: 4px 12px;
    margin: 0;
}

.layout-definition-horizontal {
    grid-template-columns: max-content 1fr;
}

.layout-definition dt {
    font-weight: 600;
}

.layout-definition dd {
    margin: 0;
}

.layout-breadcrumb-text {
    display: inline-flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 4px;
    color: var(--mud-palette-text-secondary, #666);
}

.layout-breadcrumb-current {
    color: var(--mud-palette-text-primary, #333);
    font-weight: 600;
}

.layout-control-empty {
    color: var(--mud-palette-text-disabled, #bbb);
    font-style: italic;
}

.layout-chip,
.layout-badge,
.layout-status-control,
.layout-enum-control,
.layout-boolean-control,
.layout-user-chip {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    min-height: 1.5rem;
    padding: 2px 8px;
    border-radius: 999px;
    background: var(--layout-tone-bg, rgba(0, 0, 0, 0.06));
    color: var(--layout-tone-fg, inherit);
    font-size: 0.85rem;
}

.layout-tag-list-control,
.layout-avatar-group,
.layout-button-group,
.layout-loading-control {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
}

.layout-link-control,
.layout-file-link,
.layout-email-link,
.layout-phone-link {
    color: var(--mud-palette-primary, #1976d2);
    text-decoration: underline;
}

.layout-address-control {
    font-style: normal;
    white-space: pre-line;
}

.layout-avatar {
    display: inline-grid;
    place-items: center;
    width: 2rem;
    height: 2rem;
    overflow: hidden;
    border-radius: 999px;
    background: var(--mud-palette-primary, #1976d2);
    color: #fff;
    font-weight: 600;
}

.layout-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.layout-avatar-small {
    width: 1.5rem;
    height: 1.5rem;
    font-size: 0.75rem;
}

.layout-avatar-large {
    width: 3rem;
    height: 3rem;
}

.layout-avatar-rounded {
    border-radius: 8px;
}

.layout-avatar-square {
    border-radius: 0;
}

.layout-avatar-group .layout-avatar {
    margin-left: -6px;
    border: 2px solid var(--mud-palette-surface, #fff);
}

.layout-avatar-group .layout-avatar:first-child {
    margin-left: 0;
}

.layout-image-gallery {
    display: grid;
    grid-template-columns: repeat(var(--layout-gallery-columns, 3), minmax(0, 1fr));
    gap: 8px;
}

.layout-image-gallery-strip {
    display: flex;
    overflow-x: auto;
}

.layout-image-gallery figure {
    margin: 0;
}

.layout-image-gallery img {
    display: block;
    width: 100%;
    aspect-ratio: 4 / 3;
    border-radius: 6px;
    object-fit: cover;
}

.layout-icon-control {
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.layout-icon-size-small {
    font-size: 1rem;
}

.layout-icon-size-large {
    font-size: 2rem;
}

.layout-progress-bar {
    display: block;
    height: 0.6rem;
    overflow: hidden;
    border-radius: 999px;
    background: rgba(0, 0, 0, 0.08);
}

.layout-progress-bar span {
    display: block;
    width: var(--layout-progress, 0%);
    height: 100%;
    background: var(--layout-tone-fg, var(--mud-palette-primary, #1976d2));
}

.layout-progress-ring {
    display: inline-grid;
    place-items: center;
    width: 3rem;
    height: 3rem;
    border: 4px solid rgba(0, 0, 0, 0.08);
    border-top-color: var(--layout-tone-fg, var(--mud-palette-primary, #1976d2));
    border-radius: 999px;
    font-size: 0.75rem;
}

.layout-progress-ring-indeterminate,
.layout-spinner {
    animation: layout-spin 1s linear infinite;
}

.layout-rating-control {
    color: #f9a825;
    letter-spacing: 1px;
}

.layout-button-control,
.layout-icon-button-control,
.layout-bookmark-control,
.layout-action-menu-item {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    min-height: 2rem;
    padding: 4px 10px;
    border: 1px solid var(--mud-palette-lines-default, #e0e0e0);
    border-radius: 6px;
    background: var(--mud-palette-surface, #fff);
    color: inherit;
    text-decoration: none;
}

.layout-icon-button-control {
    width: 2rem;
    justify-content: center;
}

.layout-bookmark-active {
    color: var(--mud-palette-warning, #f9a825);
}

.layout-menu-button-control,
.layout-dropdown-action-control {
    position: relative;
    display: inline-block;
}

.layout-menu-button-control summary,
.layout-dropdown-action-control summary {
    cursor: pointer;
}

.layout-action-menu-list {
    position: absolute;
    z-index: 20;
    display: grid;
    gap: 4px;
    min-width: 10rem;
    padding: 6px;
    border: 1px solid var(--mud-palette-lines-default, #e0e0e0);
    border-radius: 8px;
    background: var(--mud-palette-surface, #fff);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.16);
}

.layout-code-image {
    display: inline-block;
    max-width: 100%;
}

.layout-barcode-text {
    font-family: var(--mud-typography-monospace-family, monospace);
    font-size: 0.85rem;
}

.layout-signature-control {
    display: inline-grid;
    gap: 4px;
    min-width: 12rem;
}

.layout-signature-line {
    min-height: 2rem;
    border-bottom: 1px solid var(--mud-palette-text-primary, #333);
    font-family: cursive;
}

.layout-spinner {
    width: 1rem;
    height: 1rem;
    border: 2px solid rgba(0, 0, 0, 0.12);
    border-top-color: var(--layout-tone-fg, var(--mud-palette-primary, #1976d2));
    border-radius: 999px;
}

.layout-skeleton-control {
    display: grid;
    gap: 8px;
}

.layout-skeleton-avatar,
.layout-skeleton-line {
    display: block;
    border-radius: 999px;
    background: linear-gradient(90deg, rgba(0, 0, 0, 0.06), rgba(0, 0, 0, 0.12), rgba(0, 0, 0, 0.06));
}

.layout-skeleton-avatar {
    width: 2rem;
    height: 2rem;
}

.layout-skeleton-line {
    height: 0.85rem;
}

.layout-skeleton-rectangle .layout-skeleton-line {
    height: 4rem;
    border-radius: 6px;
}

.layout-skeleton-pulse .layout-skeleton-line,
.layout-skeleton-pulse .layout-skeleton-avatar {
    animation: layout-pulse 1.4s ease-in-out infinite;
}

.layout-tone-info {
    --layout-tone-bg: rgba(25, 118, 210, 0.08);
    --layout-tone-border: rgba(25, 118, 210, 0.3);
    --layout-tone-fg: var(--mud-palette-primary, #1976d2);
}

.layout-tone-success,
.layout-tone-true {
    --layout-tone-bg: rgba(46, 125, 50, 0.1);
    --layout-tone-border: rgba(46, 125, 50, 0.35);
    --layout-tone-fg: var(--mud-palette-success, #2e7d32);
}

.layout-tone-warning {
    --layout-tone-bg: rgba(249, 168, 37, 0.12);
    --layout-tone-border: rgba(249, 168, 37, 0.4);
    --layout-tone-fg: var(--mud-palette-warning, #f9a825);
}

.layout-tone-error,
.layout-tone-false {
    --layout-tone-bg: rgba(179, 38, 30, 0.1);
    --layout-tone-border: rgba(179, 38, 30, 0.35);
    --layout-tone-fg: var(--mud-palette-error, #b3261e);
}

@keyframes layout-spin {
    to {
        transform: rotate(360deg);
    }
}

@keyframes layout-pulse {
    50% {
        opacity: 0.55;
    }
}

/* ── Inline Editing Styles ── */

.layout-editable {
    cursor: default;
}

/* Field Block — editable state */
.layout-field-editable .layout-field-value {
    cursor: text;
    border-radius: 2px;
    transition: background-color 0.15s ease;
    padding: 1px 2px;
    margin: -1px -2px;
}

.layout-field-editable .layout-field-value:hover {
    background: rgba(25, 118, 210, 0.04);
}

.layout-field-editable .layout-field-value:focus {
    outline: none;
    background: rgba(25, 118, 210, 0.06);
    box-shadow: 0 1px 0 0 var(--mud-palette-primary, #1976d2);
}

.layout-field-editable .layout-field-empty {
    min-width: 60px;
    display: inline-block;
    border-bottom: 1px dotted var(--mud-palette-text-disabled, #bbb);
}

.layout-field-editable .layout-field-placeholder {
    cursor: text;
}

/* Inline input fields */
.layout-field-input {
    font: inherit;
    color: inherit;
    background: transparent;
    border: none;
    border-bottom: 2px solid var(--mud-palette-primary, #1976d2);
    outline: none;
    padding: 1px 2px;
    margin: -1px -2px;
    min-width: 40px;
    width: 100%;
    box-sizing: border-box;
    transition: border-color 0.15s ease;
}

.layout-field-input:focus {
    border-bottom-color: var(--mud-palette-primary, #1976d2);
}

.layout-field-input-invalid,
.layout-field-input-invalid:focus {
    border-bottom-color: var(--mud-palette-error, #b3261e);
}

.layout-field-validation-error {
    display: block;
    margin-top: 4px;
    font-size: 0.75rem;
    color: var(--mud-palette-error, #b3261e);
}

.layout-field-input-number {
    width: auto;
    min-width: 60px;
    max-width: 200px;
}

.layout-field-input-date {
    width: auto;
    min-width: 120px;
    max-width: 200px;
}

textarea.layout-field-input {
    resize: vertical;
    min-height: 2em;
}

.layout-field-switch {
    display: inline-flex;
    margin: -4px 0;
}

/* Template Block — editable field segments */
.layout-template-editable .layout-template-field-editable {
    appearance: none;
    border: none;
    background: transparent;
    color: inherit;
    cursor: text;
    font: inherit;
    border-radius: 2px;
    padding: 0 2px;
    transition: background-color 0.15s ease;
}

.layout-template-editable .layout-template-field-editable:hover {
    background: rgba(25, 118, 210, 0.06);
}

.layout-template-editable .layout-template-field-empty {
    min-width: 40px;
    display: inline-block;
    border-bottom: 1px dotted var(--mud-palette-text-disabled, #bbb);
}

.layout-template-field-input {
    font: inherit;
    color: inherit;
    background: rgba(25, 118, 210, 0.04);
    border: none;
    border-bottom: 2px solid var(--mud-palette-primary, #1976d2);
    border-radius: 2px 2px 0 0;
    outline: none;
    padding: 0 2px;
    min-width: 40px;
    width: auto;
}

/* Repeater — add/remove controls */
.layout-repeater-item {
    position: relative;
}

.layout-repeater-remove {
    position: absolute;
    top: 2px;
    right: -28px;
    background: none;
    border: none;
    cursor: pointer;
    opacity: 0;
    transition: opacity 0.15s ease;
    color: var(--mud-palette-error, #d32f2f);
    padding: 2px;
    border-radius: 50%;
}

.layout-repeater-item:hover .layout-repeater-remove {
    opacity: 0.6;
}

.layout-repeater-remove:hover {
    opacity: 1 !important;
    background: rgba(211, 47, 47, 0.08);
}

.layout-repeater-add {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    background: none;
    border: 1px dashed var(--mud-palette-lines-default, #ccc);
    border-radius: 4px;
    cursor: pointer;
    color: var(--mud-palette-text-secondary, #666);
    padding: 4px 12px;
    margin-top: 4px;
    font-size: 12px;
    transition: all 0.15s ease;
}

.layout-repeater-add:hover {
    border-color: var(--mud-palette-primary, #1976d2);
    color: var(--mud-palette-primary, #1976d2);
    background: rgba(25, 118, 210, 0.04);
}

/* Phase 3 collection controls */
.layout-collection {
    width: 100%;
    max-width: 100%;
}

.layout-collection-state {
    padding: 0.75rem;
    color: var(--mud-palette-text-secondary, #666);
    border: 1px dashed var(--mud-palette-lines-default, #ddd);
    border-radius: 0.5rem;
}

.layout-table-control,
.layout-data-grid-control,
.layout-matrix-control,
.layout-pivot-summary-control,
.layout-comparison-control {
    overflow-x: auto;
}

.layout-table-control table,
.layout-data-grid-control table,
.layout-matrix-control,
.layout-pivot-summary-control,
.layout-comparison-control {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

.layout-table-control th,
.layout-table-control td,
.layout-data-grid-control th,
.layout-data-grid-control td,
.layout-matrix-control th,
.layout-matrix-control td,
.layout-pivot-summary-control th,
.layout-pivot-summary-control td,
.layout-comparison-control th,
.layout-comparison-control td {
    padding: 0.5rem;
    border-bottom: 1px solid var(--mud-palette-lines-default, #e0e0e0);
    text-align: left;
    vertical-align: top;
}

.layout-density-compact th,
.layout-density-compact td {
    padding: 0.25rem 0.4rem;
}

.layout-density-spacious th,
.layout-density-spacious td {
    padding: 0.8rem;
}

.layout-table-sticky thead th {
    position: sticky;
    top: 0;
    background: var(--mud-palette-surface, #fff);
    z-index: 1;
}

.layout-cell-align-center {
    text-align: center !important;
}

.layout-cell-align-end {
    text-align: right !important;
}

.layout-column-sortable::after {
    content: " ↕";
    color: var(--mud-palette-text-secondary, #666);
}

.layout-data-grid-toolbar {
    display: flex;
    gap: 0.75rem;
    align-items: center;
    margin-bottom: 0.5rem;
    color: var(--mud-palette-text-secondary, #666);
    font-size: 0.85rem;
}

.layout-selection-indicator {
    display: inline-block;
    width: 0.75rem;
    height: 0.75rem;
    border: 1px solid var(--mud-palette-lines-default, #ccc);
    border-radius: 0.2rem;
}

.layout-list-control,
.layout-grouped-list-control,
.layout-feed-control,
.layout-agenda-control {
    display: grid;
    gap: 0.75rem;
}

.layout-list-item,
.layout-feed-control article,
.layout-agenda-control article,
.layout-kanban-card,
.layout-card-list-card {
    padding: 0.75rem;
    border: 1px solid var(--mud-palette-lines-default, #e0e0e0);
    border-radius: 0.75rem;
    background: var(--mud-palette-surface, #fff);
}

.layout-list-item {
    display: grid;
    gap: 0.25rem;
}

.layout-list-item span,
.layout-list-item small,
.layout-feed-control time,
.layout-agenda-control time,
.layout-activity-log-control time {
    color: var(--mud-palette-text-secondary, #666);
}

.layout-list-separator-none .layout-list-item {
    border-color: transparent;
    padding-inline: 0;
}

.layout-compact-list-control,
.layout-activity-log-control,
.layout-tree-control {
    list-style: none;
    padding: 0;
    margin: 0;
}

.layout-compact-list-control li,
.layout-activity-log-control li {
    display: flex;
    gap: 0.75rem;
    align-items: center;
    padding: 0.45rem 0;
    border-bottom: 1px solid var(--mud-palette-lines-default, #eee);
}

.layout-compact-list-control li > span:nth-child(2) {
    flex: 1;
    display: grid;
}

.layout-card-list-control,
.layout-gallery-control {
    display: grid;
    grid-template-columns: repeat(var(--layout-card-list-columns, var(--layout-gallery-columns, 3)), minmax(0, 1fr));
    gap: var(--layout-card-list-gap, 1rem);
}

.layout-card-list-card img,
.layout-gallery-control img {
    width: 100%;
    aspect-ratio: 16 / 9;
    object-fit: cover;
    border-radius: 0.5rem;
}

.layout-key-value-control,
.layout-description-list-control {
    display: grid;
    grid-template-columns: repeat(var(--layout-key-value-columns, var(--layout-description-columns, 1)), minmax(0, 1fr));
    gap: 0.5rem 1rem;
}

.layout-key-value-control > div,
.layout-description-list-control > div {
    display: grid;
    grid-template-columns: var(--layout-key-label-width, 8rem) minmax(0, 1fr);
    gap: 0.5rem;
}

.layout-description-list-vertical > div {
    grid-template-columns: 1fr;
}

.layout-description-list-bordered > div {
    padding: 0.5rem;
    border: 1px solid var(--mud-palette-lines-default, #e0e0e0);
    border-radius: 0.5rem;
}

.layout-key-value-control dt,
.layout-description-list-control dt {
    color: var(--mud-palette-text-secondary, #666);
    font-weight: 600;
}

.layout-timeline-control {
    list-style: none;
    display: grid;
    gap: 0.75rem;
    padding: 0;
}

.layout-timeline-control li {
    display: grid;
    grid-template-columns: auto 8rem 1fr;
    gap: 0.75rem;
    align-items: start;
}

.layout-timeline-marker {
    width: 1.5rem;
    height: 1.5rem;
    display: grid;
    place-items: center;
    border-radius: 50%;
    background: var(--mud-palette-primary, #1976d2);
    color: var(--mud-palette-primary-text, #fff);
}

.layout-tree-control ul {
    list-style: none;
    margin: 0.25rem 0 0 1rem;
    padding-left: 0.75rem;
    border-left: 1px solid var(--mud-palette-lines-default, #e0e0e0);
}

.layout-tree-control li {
    margin: 0.25rem 0;
}

.layout-gallery-control figure {
    margin: 0;
}

.layout-gallery-control figcaption {
    color: var(--mud-palette-text-secondary, #666);
    font-size: 0.85rem;
    margin-top: 0.25rem;
}

.layout-kanban-control {
    display: grid;
    grid-auto-flow: column;
    grid-auto-columns: minmax(16rem, 1fr);
    gap: 1rem;
    overflow-x: auto;
}

.layout-kanban-column {
    display: grid;
    align-content: start;
    gap: 0.75rem;
    padding: 0.75rem;
    border-radius: 0.75rem;
    background: color-mix(in srgb, var(--mud-palette-background, #fafafa) 92%, #000);
}

.layout-kanban-column header,
.layout-feed-control header {
    display: flex;
    justify-content: space-between;
    gap: 0.75rem;
}

.layout-comparison-different {
    background: rgba(255, 193, 7, 0.08);
}

.layout-stats-list-control {
    display: grid;
    gap: 0.5rem;
}

.layout-stats-list-control > div {
    display: grid;
    grid-template-columns: 1fr auto auto;
    gap: 0.75rem;
    align-items: center;
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--mud-palette-lines-default, #eee);
}

.layout-feed-control footer {
    display: flex;
    gap: 0.5rem;
    margin-top: 0.5rem;
}

.layout-activity-log-control li {
    align-items: flex-start;
}

.layout-activity-log-control dl {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin: 0;
}

.layout-empty-state-control {
    display: grid;
    place-items: center;
    text-align: center;
    gap: 0.5rem;
    padding: 2rem;
    border: 1px dashed var(--mud-palette-lines-default, #ddd);
    border-radius: 1rem;
    color: var(--mud-palette-text-secondary, #666);
}

.layout-empty-state-control strong {
    color: var(--mud-palette-text-primary, #222);
}

.layout-pagination-control,
.layout-page-size-options {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.layout-pagination-control button,
.layout-feed-control button {
    border: 1px solid var(--mud-palette-lines-default, #ddd);
    border-radius: 0.4rem;
    background: var(--mud-palette-surface, #fff);
    color: var(--mud-palette-text-secondary, #666);
    padding: 0.35rem 0.7rem;
}

.layout-page-size-active {
    font-weight: 700;
    color: var(--mud-palette-primary, #1976d2);
}

/* Phase 4 visualization controls */
.layout-visualization {
    width: 100%;
    max-width: 100%;
    display: grid;
    gap: 0.75rem;
    padding: 0.75rem;
    border: 1px solid var(--mud-palette-lines-default, #e0e0e0);
    border-radius: 0.9rem;
    background: var(--mud-palette-surface, #fff);
}

.layout-visualization > header {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    align-items: baseline;
}

.layout-visualization > header span,
.layout-visualization-label,
.layout-visualization-state {
    color: var(--mud-palette-text-secondary, #666);
}

.layout-visualization-state {
    padding: 0.75rem;
    border: 1px dashed var(--mud-palette-lines-default, #ddd);
    border-radius: 0.5rem;
}

.layout-visualization-value {
    font-size: clamp(1.75rem, 4vw, 3rem);
    line-height: 1;
    font-weight: 750;
}

.layout-metric-control,
.layout-kpi-control {
    align-content: center;
}

.layout-visualization-trend {
    width: fit-content;
    border-radius: 999px;
    padding: 0.15rem 0.5rem;
    background: rgba(25, 118, 210, 0.08);
}

.layout-visualization-trend.is-positive,
.layout-waterfall article.is-positive {
    color: #15803d;
}

.layout-visualization-trend.is-negative,
.layout-waterfall article.is-negative {
    color: #b91c1c;
}

.layout-visualization-meter,
.layout-bullet-track {
    position: relative;
    overflow: hidden;
    height: 0.75rem;
    border-radius: 999px;
    background: var(--mud-palette-background, #f5f5f5);
}

.layout-visualization-meter > span,
.layout-bullet-value {
    position: absolute;
    inset: 0 auto 0 0;
    border-radius: inherit;
}

.layout-kpi-target,
.layout-bullet-labels {
    display: flex;
    justify-content: space-between;
    color: var(--mud-palette-text-secondary, #666);
    font-size: 0.85rem;
}

.layout-sparkline-control {
    padding: 0.5rem;
}

.layout-sparkline-control svg,
.layout-bubble-chart-control svg,
.layout-network-graph-control svg {
    width: 100%;
    min-height: 4rem;
}

.layout-lollipop-list,
.layout-funnel,
.layout-alluvial,
.layout-box-plot {
    display: grid;
    gap: 0.5rem;
}

.layout-lollipop-row {
    display: grid;
    grid-template-columns: minmax(6rem, 1fr) minmax(8rem, 4fr) auto;
    gap: 0.75rem;
    align-items: center;
}

.layout-lollipop-row i {
    position: relative;
    height: 0;
    border-top: 2px solid;
}

.layout-lollipop-row b {
    position: relative;
    display: block;
    width: 0.8rem;
    height: 0.8rem;
    margin-left: -0.4rem;
    border-radius: 999px;
}

.layout-donut-summary {
    text-align: center;
    font-weight: 700;
    margin-top: -0.5rem;
}

.layout-gauge-dial {
    --layout-gauge-value: 0%;
    --layout-gauge-color: var(--mud-palette-primary, #1976d2);
    display: grid;
    place-items: center;
    width: min(12rem, 100%);
    aspect-ratio: 1;
    margin-inline: auto;
    border-radius: 999px;
    background: conic-gradient(var(--layout-gauge-color) var(--layout-gauge-value), var(--mud-palette-background, #eee) 0);
}

.layout-gauge-dial > span {
    display: none;
}

.layout-gauge-dial > strong {
    display: grid;
    place-items: center;
    width: 72%;
    aspect-ratio: 1;
    border-radius: inherit;
    background: var(--mud-palette-surface, #fff);
    font-size: 1.5rem;
}

.layout-bullet-track {
    height: 1.1rem;
}

.layout-bullet-band,
.layout-bullet-target {
    position: absolute;
    top: 0;
    bottom: 0;
}

.layout-bullet-band {
    opacity: 0.7;
}

.layout-bullet-target {
    width: 2px;
    background: var(--mud-palette-text-primary, #222);
}

.layout-heatmap-grid,
.layout-calendar-heatmap-grid,
.layout-choropleth-regions {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(4.5rem, 1fr));
    gap: 0.4rem;
}

.layout-heatmap-grid span,
.layout-calendar-heatmap-grid time,
.layout-choropleth-regions article {
    min-height: 2.5rem;
    display: grid;
    place-items: center;
    border-radius: 0.45rem;
    color: #0f172a;
    padding: 0.4rem;
}

.layout-choropleth-regions article {
    justify-items: start;
    color: #fff;
}

.layout-map-frame {
    position: relative;
    min-height: 16rem;
    border-radius: 0.9rem;
    overflow: hidden;
    background:
        radial-gradient(circle at 25% 35%, rgba(25, 118, 210, 0.14), transparent 20%),
        radial-gradient(circle at 70% 50%, rgba(22, 163, 74, 0.14), transparent 22%),
        linear-gradient(135deg, #e0f2fe, #ecfeff);
    border: 1px solid var(--mud-palette-lines-default, #ddd);
}

.layout-map-point,
.layout-map-symbol {
    position: absolute;
    translate: -50% -50%;
    border-radius: 999px;
    border: 2px solid #fff;
    box-shadow: 0 0 0 1px rgba(15, 23, 42, 0.18);
}

.layout-map-point {
    width: 0.85rem;
    height: 0.85rem;
}

.layout-timeline-chart {
    position: relative;
    min-height: 10rem;
    border-left: 1px solid var(--mud-palette-lines-default, #ddd);
    border-bottom: 1px solid var(--mud-palette-lines-default, #ddd);
}

.layout-timeline-bar {
    position: relative;
    min-height: 1.5rem;
    margin-block: 0.35rem;
    border-radius: 999px;
    color: #fff;
    padding-inline: 0.5rem;
    overflow: hidden;
    white-space: nowrap;
}

.layout-funnel {
    justify-items: center;
}

.layout-funnel > div {
    min-height: 2.4rem;
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    align-items: center;
    color: #fff;
    border-radius: 0.45rem;
    padding-inline: 0.75rem;
}

.layout-waterfall {
    min-height: 12rem;
    display: flex;
    align-items: end;
    gap: 0.5rem;
}

.layout-waterfall article {
    min-width: 4rem;
    display: grid;
    align-content: end;
    gap: 0.2rem;
    padding: 0.4rem;
    border-radius: 0.5rem 0.5rem 0 0;
    background: rgba(25, 118, 210, 0.1);
    font-size: 0.8rem;
}

.layout-circle-pack,
.layout-word-cloud {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 0.65rem;
}

.layout-circle-pack span {
    display: grid;
    place-items: center;
    border-radius: 999px;
    color: #fff;
    text-align: center;
    padding: 0.35rem;
    overflow: hidden;
}

.layout-histogram {
    min-height: 12rem;
    display: flex;
    align-items: end;
    gap: 0.35rem;
}

.layout-histogram article {
    flex: 1;
    min-height: 0.5rem;
    border-radius: 0.35rem 0.35rem 0 0;
    display: grid;
    place-items: start center;
    color: #fff;
    font-size: 0.75rem;
}

.layout-box-plot article {
    display: grid;
    grid-template-columns: minmax(6rem, 1fr) auto minmax(12rem, 3fr) auto;
    gap: 0.5rem;
    align-items: center;
}

.layout-box-body {
    padding: 0.35rem 0.5rem;
    border: 2px solid var(--mud-palette-primary, #1976d2);
    border-radius: 0.35rem;
    text-align: center;
}

.layout-box-whisker {
    color: var(--mud-palette-text-secondary, #666);
    font-size: 0.85rem;
}

.layout-network-graph-control line {
    stroke: var(--mud-palette-lines-default, #d5d5d5);
    stroke-width: 0.8;
}

.layout-alluvial article {
    display: grid;
    grid-template-columns: minmax(5rem, 1fr) minmax(5rem, 3fr) minmax(5rem, 1fr) auto;
    gap: 0.5rem;
    align-items: center;
}

.layout-alluvial i {
    display: block;
    height: 0.8rem;
    border-radius: 999px;
}

/* Phase 5 interactive form controls */
.layout-form-control,
.layout-form-section-control,
.layout-form-field {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.layout-form-control,
.layout-form-section-control {
    width: 100%;
}

.layout-form-section-control {
    padding: 1rem;
    border: 1px solid var(--mud-palette-lines-default, #e0e0e0);
    border-radius: 0.75rem;
}

.layout-form-section-control > summary {
    cursor: pointer;
    font-weight: 600;
}

.layout-form-section-control h3,
.layout-form-section-control p {
    margin: 0;
}

.layout-form-label,
.layout-cascader-level span,
.layout-range-inputs span,
.layout-range-slider span {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--mud-palette-text-secondary, #666);
}

.layout-form-input,
.layout-slider-input {
    width: 100%;
}

.layout-form-input {
    min-height: 2.25rem;
    padding: 0.45rem 0.6rem;
    border: 1px solid var(--mud-palette-lines-inputs, #c4c4c4);
    border-radius: 0.5rem;
    background: var(--mud-palette-surface, #fff);
    color: var(--mud-palette-text-primary, #333);
}

.layout-form-textarea {
    min-height: 5rem;
    resize: vertical;
}

.layout-form-state,
.layout-form-hint,
.layout-form-error {
    font-size: 0.75rem;
}

.layout-form-state,
.layout-form-hint {
    color: var(--mud-palette-text-secondary, #666);
}

.layout-form-error {
    color: var(--mud-palette-error, #f44336);
}

.layout-choice-list,
.layout-tree-select-list,
.layout-cascader-levels,
.layout-range-inputs,
.layout-range-slider,
.layout-inline-actions,
.layout-approval-actions {
    display: flex;
    gap: 0.75rem;
}

.layout-choice-list-vertical,
.layout-tree-select-list,
.layout-cascader-levels,
.layout-range-inputs,
.layout-range-slider {
    flex-direction: column;
}

.layout-choice-list-horizontal {
    flex-direction: row;
    flex-wrap: wrap;
}

.layout-choice-control {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
}

.layout-toggle-input {
    width: 2.75rem;
    height: 1.35rem;
}

.layout-input-with-action,
.layout-input-prefix,
.layout-slider-row,
.layout-color-picker-row {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.layout-inline-action,
.layout-submit-button-control,
.layout-comment-submit,
.layout-transfer-item,
.layout-inline-actions button,
.layout-approval-action {
    border: 1px solid var(--mud-palette-lines-default, #e0e0e0);
    border-radius: 0.5rem;
    padding: 0.45rem 0.75rem;
    background: var(--mud-palette-surface, #fff);
    color: var(--mud-palette-primary, #594ae2);
    cursor: pointer;
}

.layout-submit-button-control {
    align-self: flex-start;
    background: var(--mud-palette-primary, #594ae2);
    color: var(--mud-palette-primary-text, #fff);
}

.layout-transfer-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(10rem, 1fr));
    gap: 1rem;
}

.layout-transfer-list section {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    padding: 0.75rem;
    border: 1px solid var(--mud-palette-lines-default, #e0e0e0);
    border-radius: 0.75rem;
}

.layout-color-presets,
.layout-rating-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem;
}

.layout-color-preset {
    width: 1.5rem;
    height: 1.5rem;
    border: 1px solid var(--mud-palette-lines-default, #e0e0e0);
    border-radius: 999px;
}

.layout-rating-button {
    border: none;
    background: transparent;
    color: var(--mud-palette-text-disabled, #aaa);
    cursor: pointer;
}

.layout-rating-button.is-active {
    color: var(--mud-palette-warning, #ff9800);
}

.layout-file-upload-control.is-dropzone {
    padding: 1rem;
    border: 1px dashed var(--mud-palette-lines-default, #e0e0e0);
    border-radius: 0.75rem;
}

.layout-inline-edit-display {
    border: 1px dashed var(--mud-palette-lines-default, #e0e0e0);
    border-radius: 0.5rem;
    padding: 0.45rem 0.75rem;
    background: transparent;
    text-align: left;
}

.layout-validation-summary-control,
.layout-approval-control,
.layout-comment-control {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    padding: 0.75rem;
    border: 1px solid var(--mud-palette-lines-default, #e0e0e0);
    border-radius: 0.75rem;
}

.layout-comment-list,
.layout-comment-item {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.layout-comment-item {
    padding: 0.65rem;
    background: var(--mud-palette-background-grey, #f5f5f5);
    border-radius: 0.5rem;
}

.layout-comment-item header {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    color: var(--mud-palette-text-secondary, #666);
}