/**
 * Canvas Modality Styles
 *
 * Styles for the Canvas meta block editor and all node types.
 * Designed to match the Symposium design language:
 *   - Uses var(--color-ink), var(--main-background-color), var(--border-color), etc.
 *   - Font: var(--font-sans)
 *   - Radii: var(--radius-sm), var(--radius-md)
 *   - No hard-coded colours where design tokens exist.
 *
 * Structure:
 *   1.  Canvas editor shell (side panel view)
 *   2.  Toolbar
 *   3.  Block palette sidebar
 *   4.  Canvas viewport + world layer
 *   5.  Node base
 *   6.  Node types: block, sticky, text, callout, shape, section, highlight, stamp
 *   7.  Connectors & SVG layer
 *   8.  Drawing layer
 *   9.  Selection handles + box select
 *   10. Design system node (multi-section viewer)
 *   11. Board tile minimap preview
 *   12. Scrollbars + misc utilities
 */

/* ═══════════════════════════════════════════════════════════════
   1. CANVAS EDITOR SHELL
   ═══════════════════════════════════════════════════════════════ */

.canvas-modality-editor {
    display: flex;
    flex-direction: column;
    width: 100%;
    height: 100%;
    border: 0.5px solid var(--main-background-color-third);
    border-radius: var(--radius-xl);
    overflow: hidden;
    font-family: var(--font-sans);
    position: relative;
}

/* View-only mode: toolbar is a compact zoom strip; palette is hidden */
.canvas-modality-editor--view-only {
    background: var(--main-background-color);
}

/* View-only toolbar: slim, minimal, sits above the viewport */
.canvas-toolbar--view-only {
    justify-content: center;
    padding: 4px 8px;
    gap: 2px;
    border-bottom: 1px solid var(--border-color);
    background: var(--main-background-color-secondary);
}

.canvas-toolbar--view-only .canvas-toolbar-group {
    margin-left: 0;
}

.canvas-modality-editor--view-only .canvas-viewport {
    /* Remove dot grid in view mode — cleaner presentation */
    background-image: none;
    cursor: default;
}

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

/* Side panel canvas container */
.ncp-canvas-view {
    display: flex;
    flex-direction: column;
    width: 100%;
    height: min(960px, calc(var(--interface-viewport-height, 100vh) - 150px)) !important;
    min-height: 400px;
    min-width: 0;
}

.sp-canvas-view-section {
    width: 100%;
    height: 100%;
    min-height: 400px;
    display: flex;
    flex-direction: column;
    min-width: 0;
    min-height: 0;
}

.sp-canvas-view-container {
    flex: 1;
    min-height: 0;
    position: relative;
    min-width: 0;
    border: 0.5px solid var(--main-background-color-third);
    border-radius: var(--radius-xl);
}

.sp-canvas-view-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: var(--color-ink-lighter);
    font-size: 13px;
}

.sp-canvas-view-meta {
    display: none;
    padding: 6px 12px;
    font-size: 11px;
    color: var(--color-ink-lighter);
}

/* ═══════════════════════════════════════════════════════════════
   2. TOOLBAR
   ═══════════════════════════════════════════════════════════════ */

.canvas-toolbar {
    display: flex;
    align-items: center;
    gap: 2px;
    padding: 6px 10px;
    background: var(--main-background-color-secondary);
    border-bottom: 1px solid var(--border-color);
    flex-shrink: 0;
    flex-wrap: wrap;
    z-index: 10;
    user-select: none;
}

.canvas-toolbar-group {
    display: flex;
    align-items: center;
    gap: 2px;
}

.canvas-toolbar-group + .canvas-toolbar-group {
    margin-left: auto;
}

.canvas-toolbar-divider {
    width: 1px;
    height: 18px;
    background: var(--border-color);
    margin: 0 4px;
}

.canvas-tool-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 30px;
    height: 30px;
    padding: 0;
    background: transparent;
    border: 1px solid transparent;
    border-radius: var(--radius-full);
    cursor: pointer;
    color: var(--color-ink-light);
    transition: background 0.12s, color 0.12s, border-color 0.12s;
    flex-shrink: 0;
}

.canvas-tool-btn:hover {
    background: var(--main-background-color-third, rgba(0,0,0,0.07));
    color: var(--color-ink);
    border-color: var(--border-color);
}

.canvas-tool-btn--active {
    background: color-mix(in srgb, var(--color-primary, #6366f1) 12%, transparent);
    color: var(--color-primary, #6366f1);
    border-color: color-mix(in srgb, var(--color-primary, #6366f1) 30%, transparent);
}

.canvas-tool-btn--active:hover {
    background: color-mix(in srgb, var(--color-primary, #6366f1) 18%, transparent);
}

.canvas-zoom-indicator {
    font-size: 11px;
    color: var(--color-ink-lighter);
    padding: 0 4px;
    min-width: 36px;
    text-align: center;
    font-variant-numeric: tabular-nums;
}

.canvas-collab-presence {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-left: 8px;
    padding: 0 8px;
    min-height: 24px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    background: var(--main-background-color);
    color: var(--color-ink-light);
    font-size: 11px;
    white-space: nowrap;
}

.canvas-collab-presence-dot {
    width: 8px;
    height: 8px;
    border-radius: 999px;
    background: #16a34a;
    flex-shrink: 0;
}

.canvas-collab-presence-text {
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Draw options (color + width) */
.canvas-toolbar-group--draw-opts {
    gap: 6px;
}

.canvas-tool-color-label,
.canvas-tool-width-label {
    display: flex;
    align-items: center;
}

.canvas-tool-color {
    width: 24px;
    height: 24px;
    padding: 1px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    cursor: pointer;
    background: transparent;
}

.canvas-tool-width {
    width: 64px;
    cursor: pointer;
    accent-color: var(--color-primary, #6366f1);
}

/* ═══════════════════════════════════════════════════════════════
   3. BLOCK PALETTE SIDEBAR
   ═══════════════════════════════════════════════════════════════ */

.canvas-block-palette {
    width: 160px;
    flex-shrink: 0;
    border-right: 1px solid var(--border-color);
    background: var(--main-background-color-secondary);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    min-height: 0;
}

.canvas-palette-header {
    padding: 8px 10px 6px;
    font-size: 11px;
    font-weight: 600;
    color: var(--color-ink-lighter);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    flex-shrink: 0;
    border-bottom: 1px solid var(--border-color);
}

.canvas-palette-list {
    flex: 1;
    min-height: 0;
    overflow-y: auto;
    padding: 6px 4px;
    display: flex;
    scrollbar-width: thin;
    flex-direction: column;
    gap: 3px;
}

.canvas-palette-empty {
    padding: 12px 8px;
    font-size: 12px;
    color: var(--color-ink-lighter);
    text-align: center;
    line-height: 1.4;
}

.canvas-palette-group {
    display: flex;
    flex-direction: column;
    gap: 3px;
}

.canvas-palette-group-header {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    padding: 6px;
    border: 0;
    border-radius: var(--radius-sm);
    background: transparent;
    color: inherit;
    cursor: pointer;
    text-align: left;
}

.canvas-palette-group-header:hover {
    background: var(--main-background-color-third, rgba(0,0,0,0.05));
}

.canvas-palette-group-header:focus-visible {
    outline: 1px solid var(--color-primary, #6366f1);
    outline-offset: 1px;
}

.canvas-palette-group-label-wrap {
    display: flex;
    align-items: center;
    gap: 6px;
    min-width: 0;
}

.canvas-palette-group-chevron {
    width: 12px;
    height: 12px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--color-ink-lighter);
    transform: rotate(-90deg);
    transform-origin: center;
    transition: transform 0.12s ease;
    flex-shrink: 0;
}

.canvas-palette-group.is-expanded .canvas-palette-group-chevron {
    transform: rotate(0deg);
}

.canvas-palette-group-chevron svg {
    width: 12px;
    height: 12px;
}

.canvas-palette-group-label {
    min-width: 0;
    font-size: 11px;
    font-weight: 600;
    color: var(--color-ink);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.canvas-palette-group-count {
    flex-shrink: 0;
    font-size: 10px;
    font-weight: 600;
    color: var(--color-ink-lighter);
}

.canvas-palette-group-body {
    display: flex;
    flex-direction: column;
    gap: 3px;
    padding: 0 0 4px 16px;
}

.canvas-palette-group-body[hidden] {
    display: none;
}

.canvas-palette-item {
    display: flex;
    align-items: center;
    gap: 7px;
    padding: 5px 6px;
    border-radius: var(--radius-sm);
    cursor: grab;
    transition: background 0.1s;
    border: 1px solid transparent;
}

.canvas-palette-item:hover {
    background: var(--main-background-color-third, rgba(0,0,0,0.05));
    border-color: var(--border-color);
}

.canvas-palette-item:active {
    cursor: grabbing;
}

.canvas-palette-thumb {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-sm);
    overflow: hidden;
    flex-shrink: 0;
    border: 1px solid var(--border-color);
    background: var(--main-background-color);
    display: flex;
    align-items: center;
    justify-content: center;
}

.canvas-palette-thumb-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.cn-palette-thumb-icon {
    font-size: 14px;
    line-height: 1;
}

.canvas-palette-meta {
    min-width: 0;
    flex: 1;
}

.canvas-palette-title {
    font-size: 11px;
    font-weight: 500;
    color: var(--color-ink);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.canvas-palette-modality {
    font-size: 10px;
    color: var(--color-ink-lighter);
    margin-top: 1px;
    text-transform: capitalize;
}

/* ═══════════════════════════════════════════════════════════════
   4. CANVAS VIEWPORT + WORLD
   ═══════════════════════════════════════════════════════════════ */

.canvas-engine-container,
.canvas-viewport {
    position: relative;
    flex: 1;
    overflow: hidden;
    background: var(--main-background-color);
    /* Subtle dot grid background */
    background-image: radial-gradient(circle, var(--border-color) 1px, transparent 1px);
    background-size: 20px 20px;
    cursor: default;
    touch-action: none;
    user-select: none;
    -webkit-user-select: none;
    -webkit-touch-callout: none;
}

.canvas-engine-container[data-tool="draw"],
.canvas-viewport[data-tool="draw"] { cursor: crosshair; }

/* Space held — pan-by-drag mode */
.canvas-engine-container[data-space-pan="true"],
.canvas-viewport[data-space-pan="true"] { cursor: grab; }
.canvas-engine-container[data-space-pan="true"]:active,
.canvas-viewport[data-space-pan="true"]:active { cursor: grabbing; }
.canvas-engine-container[data-tool="erase"],
.canvas-viewport[data-tool="erase"] { cursor: cell; }
.canvas-engine-container[data-tool="sticky"],
.canvas-engine-container[data-tool="section"],
.canvas-engine-container[data-tool="text"],
.canvas-engine-container[data-tool="stamp"],
.canvas-engine-container[data-tool="rect"],
.canvas-engine-container[data-tool="ellipse"],
.canvas-engine-container[data-tool="diamond"],
.canvas-engine-container[data-tool="line"],
.canvas-viewport[data-tool="sticky"],
.canvas-viewport[data-tool="section"],
.canvas-viewport[data-tool="text"],
.canvas-viewport[data-tool="stamp"],
.canvas-viewport[data-tool="rect"],
.canvas-viewport[data-tool="ellipse"],
.canvas-viewport[data-tool="diamond"],
.canvas-viewport[data-tool="line"] { cursor: crosshair; }

.canvas-world {
    position: absolute;
    top: 0;
    left: 0;
    transform-origin: 0 0;
    /* pointer-events on children, not this layer itself */
    user-select: none;
    -webkit-user-select: none;
}

/* ═══════════════════════════════════════════════════════════════
   5. NODE BASE
   ═══════════════════════════════════════════════════════════════ */

.canvas-node {
    position: absolute;
    box-sizing: border-box;
    user-select: none;
    -webkit-user-select: none;
    -webkit-touch-callout: none;
    touch-action: none;
}

.canvas-node--selected {
    outline: 0.5px solid var(--color-primary, #6366f1);
}

.canvas-node--dragging {
    transition: none !important;
}

.canvas-node--drawing {
    background: transparent;
    border: 0;
    overflow: visible;
}

.canvas-node--drawing.canvas-node--selected {
    outline: 1.5px dashed var(--color-primary, #6366f1);
    outline-offset: 6px;
}

.canvas-node--block.canvas-node--selected {
    outline: none;
}

.canvas-node--block.canvas-node--selected > .cn-block-image-wrap,
.canvas-node--block.canvas-node--selected > .cn-block-audio,
.canvas-node--block.canvas-node--selected > .cn-block-video,
.canvas-node--block.canvas-node--selected > .cn-block-svg-wrap,
.canvas-node--block.canvas-node--selected > .cn-block-text,
.canvas-node--block.canvas-node--selected > .cn-block-generic,
.canvas-node--block.canvas-node--selected > .cn-block-placeholder,
.canvas-node--block.canvas-node--selected > .cn-block-missing,
.canvas-node--block.canvas-node--selected > .cn-block-code-shell,
.canvas-node--block.canvas-node--selected > .cn-block-schema-shell,
.canvas-node--block.canvas-node--selected > .cn-block-form-shell,
.canvas-node--block.canvas-node--selected > .cn-ds-node {
    outline: 0.5px solid var(--color-primary, #6366f1);
    outline-offset: 0;
}

/* ═══════════════════════════════════════════════════════════════
   6. NODE TYPES
   ═══════════════════════════════════════════════════════════════ */

/* ── Block (live preview) ─────────────────────── */

.canvas-node--block {
    background: transparent;
    border: none;
        border-radius: 0;
    /* border: 0.5px solid var(--main-background-color-third); */
    overflow: hidden;
    /* box-shadow: -5px 4px 13px 0px color-mix(in srgb, var(--color-ink) 8%, transparent) */
}

.cn-block-image-wrap {
    width: 100%;
    height: 100%;
    position: relative;
    overflow: hidden;
}

.cn-block-image {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
    pointer-events: none;
    user-select: none;
    -webkit-user-drag: none;
}

.cn-block-label {
    display: none;
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 4px 8px;
    font-size: 11px;
    font-weight: 500;
    color: var(--color-ink);
    background: var(--main-background-color-secondary);
    border-top: 1px solid var(--border-color);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.canvas-engine-container:focus-within .canvas-node--block.canvas-node--selected .cn-block-label,
.canvas-viewport:focus-within .canvas-node--block.canvas-node--selected .cn-block-label {
    display: block;
}

.cn-block-audio {
    display: flex;
    flex-direction: column;
    height: 100%;
    background: var(--main-background-color);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-sizing: border-box;
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.cn-block-audio-header {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-3) var(--space-2);
    flex-shrink: 0;
}

.cn-block-audio-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    color: var(--color-operation);
    line-height: 1;
}

.cn-block-audio-title {
    font-size: var(--text-xs);
    font-weight: var(--weight-medium);
    color: var(--color-ink);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    flex: 1;
    min-width: 0;
}

/* ── Real WaveSurfer viewer (sp-audio-viewer) inside a canvas block ────────
 *
 * The .cn-block-audio container supplies the outer border, border-radius and
 * box-shadow, so we strip the duplicate borders/radii from the viewer's inner
 * waveform and transport elements to avoid doubled lines.
 * ─────────────────────────────────────────────────────────────────────────── */

/* Viewer fills the block below the header — no extra spacing */
.cn-block-audio .sp-audio-viewer {
    flex: 1;
    min-height: 0;
}

/* Waveform: top border only (separates it from the header row) */
.cn-block-audio .sp-audio-viewer-waveform {
    border: none;
    border-top: var(--border-width) solid var(--border-color);
    border-radius: 0;
}

/* Transport bar: no extra borders — background colour provides the separation
   from the waveform above, the container border closes the bottom. */
.cn-block-audio .sp-audio-viewer-transport {
    border: none;
    border-radius: 0;
}

/* Loading overlay: cover the whole block (including header) while wavesurfer
   initialises so there's no partially-empty flash. */
.cn-block-audio .sp-audio-editor-loading {
    border-radius: var(--radius-md);
}

/* Fallback <audio> element sits flush when wavesurfer is unavailable */
.cn-block-audio .sp-audio-viewer-fallback {
    padding: var(--space-2) var(--space-3) var(--space-2);
}

.cn-block-video {
    width: 100%;
    height: 100%;
    position: relative;
    overflow: hidden;
    background: color-mix(in srgb, var(--main-background-color-third, #f3f4f6) 82%, black 18%);
}

.cn-block-video-player {
    width: 100%;
    height: 100%;
    object-fit: contain;
    background: #000;
    display: block;
    pointer-events: auto;
}

.canvas-node--block.canvas-node--selected > .cn-block-video .cn-block-label {
    display: none;
}

.cn-block-svg-wrap {
    width: 100%;
    height: 100%;
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 12px;
    border-radius: var(--radius-md);
    box-sizing: border-box;
}

.cn-block-svg-wrap svg {
    max-width: 100%;
    max-height: 100%;
    display: block;
}

.cn-block-text {
    padding: 10px 12px;
    height: 100%;
    box-sizing: border-box;
    overflow-y: auto;
}

.cn-block-text-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--color-ink);
    margin-bottom: 6px;
}

.cn-block-text-body {
    font-size: 12px;
    color: var(--color-ink-light);
    line-height: 1.5;
}

.cn-block-text-body img,
.cn-sticky-body img,
.cn-callout-body img,
.cn-text-box-body img {
    display: block;
    max-width: 100%;
    height: auto;
    margin: 0.5em 0;
    border-radius: var(--radius-md, 8px);
}

.cn-block-text-body p > img:first-child:last-child,
.cn-sticky-body p > img:first-child:last-child,
.cn-callout-body p > img:first-child:last-child,
.cn-text-box-body p > img:first-child:last-child {
    margin: 0.35em 0;
}

.cn-block-generic {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
    gap: 4px;
}

.cn-block-pdf-preview {
    position: relative;
    align-items: stretch;
    justify-content: stretch;
    background: var(--main-background-color-secondary);
    overflow: hidden;
}

.cn-block-pdf-page {
    position: relative;
    width: 100%;
    height: 100%;
}

.cn-block-pdf-page .pdf-static-preview {
    width: 100%;
    height: 100%;
}

.cn-block-pdf-controls {
    position: absolute;
    left: 50%;
    bottom: 10px;
    display: none;
    align-items: center;
    gap: 6px;
    padding: 4px 6px;
    border: var(--border-width) solid var(--border-color);
    border-radius: var(--radius-full);
    background: color-mix(in srgb, var(--main-background-color) 92%, transparent);
    box-shadow: var(--shadow-sm);
    color: var(--color-ink);
    font-size: 11px;
    transform: translateX(-50%);
    z-index: 3;
}

.canvas-node--block.canvas-node--selected .cn-block-pdf-controls {
    display: inline-flex;
}

.cn-block-pdf-controls button {
    width: 22px;
    height: 22px;
    border: 0;
    border-radius: var(--radius-full);
    background: var(--main-background-color-secondary);
    color: inherit;
    cursor: pointer;
}

.cn-block-pdf-controls button:disabled {
    cursor: default;
    opacity: 0.42;
}

.cn-block-table-preview {
    align-items: stretch;
    justify-content: stretch;
    overflow: hidden;
}

.cn-block-table-preview .sp-table-view {
    width: 100%;
    height: 100%;
}

.canvas-node--block:not(.canvas-node--selected) .cn-block-table-preview .sp-table-tabs {
    display: none;
}

.cn-block-generic-modality {
    font-size: 10px;
    color: var(--color-ink-lighter);
    text-transform: uppercase;
}

.cn-block-generic-title {
    font-size: 13px;
    font-weight: 500;
    color: var(--color-ink);
}

.cn-block-placeholder {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
    gap: 7px;
    padding: 16px;
    box-sizing: border-box;
    overflow: hidden;
    border: 0.5px solid var(--border-color);
    border-radius: var(--radius-xl);
    background:
        linear-gradient(135deg, color-mix(in srgb, var(--main-background-color-secondary) 88%, transparent), var(--main-background-color)),
        var(--main-background-color);
    color: var(--color-ink-lighter);
}

.cn-block-placeholder-sheen {
    position: absolute;
    inset: 0;
    transform: translateX(-100%);
    background: linear-gradient(90deg, transparent, color-mix(in srgb, white 34%, transparent), transparent);
    animation: cn-block-placeholder-sheen 1.45s ease-in-out infinite;
    pointer-events: none;
}

.cn-block-placeholder-icon {
    width: 30px;
    height: 30px;
    border-radius: 999px;
    background: color-mix(in srgb, var(--color-primary, #6366f1) 18%, var(--main-background-color-secondary));
    box-shadow: 0 0 0 8px color-mix(in srgb, var(--color-primary, #6366f1) 7%, transparent);
    animation: cn-block-placeholder-pulse 1.2s ease-in-out infinite;
}

.cn-block-placeholder-title {
    max-width: 100%;
    color: var(--color-ink-light);
    font-size: 12px;
    font-weight: var(--weight-medium);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.cn-block-placeholder-label {
    color: var(--color-ink-lighter);
    font-size: 11px;
}

@keyframes cn-block-placeholder-sheen {
    0% { transform: translateX(-100%); }
    55%, 100% { transform: translateX(100%); }
}

@keyframes cn-block-placeholder-pulse {
    0%, 100% { opacity: 0.68; transform: scale(0.95); }
    50% { opacity: 1; transform: scale(1); }
}

.cn-block-missing {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
    gap: 6px;
    box-sizing: border-box;
}

.cn-block-missing-icon {
    font-size: 20px;
    color: #f59e0b;
}

.cn-block-missing-label {
    font-size: 12px;
    color: var(--color-ink-lighter);
}

/* ── Sticky Note ──────────────────────────────── */

.canvas-node--sticky {
    background: var(--cn-sticky-bg, #fef08a);
    border: 1px solid var(--cn-sticky-border, #eab308);
    border-radius: var(--radius-xl);
    box-shadow: 2px 3px 8px rgba(0,0,0,0.10);
}

.workspace-canvas-note-comment-badge {
    position: absolute;
    bottom: 6px;
    right: 6px;
    z-index: 3;
    min-width: 18px;
    height: 18px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 999px;
    background: #eab308;
    color: black;
    font-size: 10px;
    font-weight: 700;
    box-shadow: 0 1px 4px rgba(0,0,0,0.18);
    pointer-events: none;
}

.cn-sticky-inner {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.cn-sticky-body {
    flex: 1;
    padding: 10px 12px;
    overflow-y: auto;
    font-size: 13px;
    line-height: 1.55;
    color: var(--cn-sticky-text, #713f12);
}

.cn-sticky-body p { margin: 0 0 6px; }
.cn-sticky-body p:last-child { margin-bottom: 0; }
.cn-sticky-body h1, .cn-sticky-body h2, .cn-sticky-body h3 {
    font-size: 14px;
    font-weight: 700;
    margin: 0 0 6px;
}
.cn-sticky-body code {
    background: rgba(0,0,0,0.1);
    border-radius: 3px;
    padding: 1px 4px;
    font-size: 11px;
}

.cn-sticky-placeholder {
    color: color-mix(in srgb, var(--cn-sticky-text, #713f12) 50%, transparent);
    font-style: italic;
}

/* ── Text Label ───────────────────────────────── */

.canvas-node--text {
    background: transparent;
    border: none;
    pointer-events: all;
}

.cn-text-label {
    white-space: nowrap;
    font-weight: 500;
    font-family: var(--font-sans);
    line-height: 1.2;
    cursor: default;
    padding: 2px;
}

/* ── Text Box ─────────────────────────────────── */

.canvas-node--textBox {
    background: transparent;
    border-radius: 0;
    min-height: 70px;
    overflow: visible;
}

.canvas-node--textBox[style*="--cn-text-box-bg: transparent"] {
    border-color: transparent;
    box-shadow: none;
}

.cn-text-box-inner {
    position: relative;
    width: 100%;
    height: 100%;
    min-height: inherit;
    box-sizing: border-box;
    display: flex;
    padding: 12px 14px;
    overflow: visible;
}

.cn-text-box-inner--h-left { justify-content: flex-start; }
.cn-text-box-inner--h-center { justify-content: center; }
.cn-text-box-inner--h-right { justify-content: flex-end; }
.cn-text-box-inner--v-top { align-items: flex-start; }
.cn-text-box-inner--v-middle { align-items: center; }
.cn-text-box-inner--v-bottom { align-items: flex-end; }

.cn-text-box-shape {
    position: absolute;
    inset: 0;
    z-index: 0;
    display: block;
    width: 100%;
    height: 100%;
    overflow: visible;
    pointer-events: none;
}

.cn-text-box-shape-fill {
    fill: var(--cn-text-box-bg, #ffffff);
    stroke: color-mix(in srgb, var(--cn-text-box-text, #111827) 14%, transparent);
    stroke-width: 1.2;
    vector-effect: non-scaling-stroke;
}

.canvas-node--textBox[style*="--cn-text-box-bg: transparent"] .cn-text-box-shape-fill {
    stroke: transparent;
}

.cn-text-box-inner--triangle {
    padding: max(24px, 24%) max(18px, 18%) 12px;
}

.cn-text-box-inner--right-triangle {
    padding: 28px 12px 12px max(16px, 12%);
}

.cn-text-box-inner--arrow {
    padding: 14px max(34px, 24%) 14px 14px;
}

.cn-text-box-inner--ellipse {
    padding: max(14px, 15%) max(18px, 16%);
}

.cn-text-box-body {
    position: relative;
    z-index: 1;
    width: 100%;
    color: var(--cn-text-box-text, #111827);
    font-family: var(--font-sans);
    font-size: var(--cn-text-box-font-size, 14px);
    font-weight: var(--cn-text-box-font-weight, 400);
    line-height: 1.45;
    white-space: normal;
    word-break: break-word;
}

.cn-text-box-inner--h-left .cn-text-box-body { text-align: left; }
.cn-text-box-inner--h-center .cn-text-box-body { text-align: center; }
.cn-text-box-inner--h-right .cn-text-box-body { text-align: right; }

.cn-text-box-body > :first-child {
    margin-top: 0;
}

.cn-text-box-body > :last-child {
    margin-bottom: 0;
}

.cn-text-box-body p,
.cn-text-box-body ul,
.cn-text-box-body ol,
.cn-text-box-body blockquote,
.cn-text-box-body pre,
.cn-text-box-body table {
    margin: 0 0 0.6em;
}

.cn-text-box-body h1,
.cn-text-box-body h2,
.cn-text-box-body h3,
.cn-text-box-body h4,
.cn-text-box-body h5,
.cn-text-box-body h6 {
    margin: 0.35em 0 0.3em;
    font-weight: 700;
    line-height: 1.18;
}

.cn-text-box-body h1 { font-size: 1.65em; }
.cn-text-box-body h2 { font-size: 1.4em; }
.cn-text-box-body h3 { font-size: 1.2em; }
.cn-text-box-body h4,
.cn-text-box-body h5,
.cn-text-box-body h6 { font-size: 1em; }

.cn-text-box-body ul,
.cn-text-box-body ol {
    padding-left: 1.35em;
}

.cn-text-box-body li + li {
    margin-top: 0.2em;
}

.cn-text-box-body a {
    color: var(--color-primary, #6366f1);
    text-decoration: underline;
    text-underline-offset: 2px;
}

.cn-text-box-body blockquote {
    border-left: 3px solid color-mix(in srgb, currentColor 26%, transparent);
    padding-left: 0.75em;
    color: color-mix(in srgb, currentColor 78%, transparent);
}

.cn-text-box-body code {
    border-radius: 0.35em;
    background: color-mix(in srgb, currentColor 10%, transparent);
    padding: 0.08em 0.3em;
    font-family: var(--font-mono, ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace);
    font-size: 0.9em;
}

.cn-text-box-body pre {
    overflow: auto;
    border-radius: var(--radius-md, 8px);
    background: color-mix(in srgb, currentColor 10%, transparent);
    padding: 0.75em;
}

.cn-text-box-body pre code {
    background: transparent;
    padding: 0;
}

.cn-text-box-placeholder {
    color: var(--color-ink-lighter, #64748b);
    font-style: italic;
}

/* ── Callout ──────────────────────────────────── */

.canvas-node--callout {
    background: transparent;
}

.cn-callout-inner {
    width: 100%;
    height: 100%;
    background: var(--cn-callout-bg, #fef08a);
    border: 1px solid var(--cn-callout-border, #eab308);
    border-radius: var(--radius-md);
    position: relative;
    box-shadow: 2px 3px 8px rgba(0,0,0,0.10);
}

.cn-callout-body {
    padding: 10px 12px;
    font-size: 13px;
    line-height: 1.5;
    color: var(--cn-callout-text, #713f12);
    height: 100%;
    overflow-y: auto;
}

/* Callout tails — CSS triangle */
.cn-callout-inner::after {
    content: '';
    position: absolute;
    width: 0;
    height: 0;
}

.cn-callout--tail-bottom-left::after {
    bottom: -12px;
    left: 16px;
    border-left: 8px solid transparent;
    border-right: 8px solid transparent;
    border-top: 12px solid var(--cn-callout-border, #eab308);
}

.cn-callout--tail-bottom-right::after {
    bottom: -12px;
    right: 16px;
    border-left: 8px solid transparent;
    border-right: 8px solid transparent;
    border-top: 12px solid var(--cn-callout-border, #eab308);
}

.cn-callout--tail-top-left::after {
    top: -12px;
    left: 16px;
    border-left: 8px solid transparent;
    border-right: 8px solid transparent;
    border-bottom: 12px solid var(--cn-callout-border, #eab308);
}

.cn-callout--tail-top-right::after {
    top: -12px;
    right: 16px;
    border-left: 8px solid transparent;
    border-right: 8px solid transparent;
    border-bottom: 12px solid var(--cn-callout-border, #eab308);
}

/* ── Shapes ───────────────────────────────────── */

.canvas-node--shape {
    overflow: visible;
    background: transparent;
    border: none;
}

.cn-shape-svg {
    display: block;
    overflow: visible;
}

/* ── Section ──────────────────────────────────── */

.canvas-node--section {
    border: 1.5px dashed var(--border-color-strong, var(--border-color));
    border-radius: var(--radius-xl);
    /* pointer-events: all — sections are selectable/draggable from empty areas.
       Nodes at higher z-index still receive events first, so nodes inside a
       section continue to work normally. */
}

.cn-section-inner {
    width: 100%;
    height: 100%;
    /* pointer-events: none lets events on the inner area fall through to the
       parent .canvas-node--section so the whole background is grabbable. */
    pointer-events: none;
}

.cn-section-title {
    padding: 6px 10px;
    font-size: 12px;
    font-weight: 600;
    color: var(--color-ink-lighter);
    letter-spacing: 0.02em;
}

/* ── Highlight ────────────────────────────────── */

.canvas-node--highlight {
    border-radius: var(--radius-sm);
    pointer-events: none;
    border: none;
}

/* ── Stamp ────────────────────────────────────── */

.canvas-node--stamp {
    background: transparent;
    border: none;
    pointer-events: all;
    cursor: default;
}

.cn-stamp {
    display: block;
    line-height: 1;
    user-select: none;
}

/* ── Unknown / fallback ───────────────────────── */

.cn-unknown-node {
    padding: 8px;
    font-size: 11px;
    color: var(--color-ink-lighter);
    border: 1px dashed var(--border-color);
    border-radius: var(--radius-sm);
}

/* ═══════════════════════════════════════════════════════════════
   7. CONNECTORS & SVG LAYER
   ═══════════════════════════════════════════════════════════════ */

.canvas-connector-layer {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: visible;
    pointer-events: none;
    z-index: 4;
}

.canvas-connector-path {
    stroke-linecap: round;
    stroke-linejoin: round;
    transition: stroke 0.1s;
}

.canvas-connector-label {
    font-size: 11px;
    font-family: var(--font-sans);
    paint-order: stroke fill;
}

.canvas-connector-focus-point {
    cursor: grab;
    stroke-width: 2px;
}

.canvas-connector-endpoint-handle {
    cursor: grab;
    stroke-width: 2px;
}

.canvas-connector-focus-point:hover,
.canvas-connector-focus-point:focus-visible,
.canvas-connector-focus-point--selected {
    outline: none;
    stroke-width: 3px;
}

/* ═══════════════════════════════════════════════════════════════
   8. DRAWING LAYER
   ═══════════════════════════════════════════════════════════════ */

.canvas-drawing-canvas {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    z-index: 5;
    touch-action: none;
}

/* ═══════════════════════════════════════════════════════════════
   9. SELECTION HANDLES + BOX SELECT
   ═══════════════════════════════════════════════════════════════ */

.canvas-resize-handle {
    position: absolute;
    background: #fff;
    border: 1.5px solid var(--color-primary, #6366f1);
    border-radius: 2px;
    z-index: 100000;
    cursor: default;
    pointer-events: all;
}

@media (pointer: coarse) {
    .canvas-resize-handle,
    .canvas-rotate-handle {
        min-width: 22px;
        min-height: 22px;
        border-radius: 999px;
        transform: translate(-7px, -7px);
    }

    .canvas-connect-handle {
        min-width: 24px;
        min-height: 24px;
    }
}

.canvas-resize-handle--nw { cursor: nw-resize; }
.canvas-resize-handle--n  { cursor: n-resize; }
.canvas-resize-handle--ne { cursor: ne-resize; }
.canvas-resize-handle--e  { cursor: e-resize; }
.canvas-resize-handle--se { cursor: se-resize; }
.canvas-resize-handle--s  { cursor: s-resize; }
.canvas-resize-handle--sw { cursor: sw-resize; }
.canvas-resize-handle--w  { cursor: w-resize; }

.canvas-move-handle {
    --move-handle-dot-size: 14%;
    position: absolute;
    border: 1.5px solid var(--color-primary, #6366f1);
    border-radius: 999px;
    background: var(--main-background-color, #fff);
    box-shadow: 0 2px 8px color-mix(in srgb, #000 18%, transparent);
    cursor: grab;
    pointer-events: all;
    z-index: 100001;
}

.canvas-move-handle::before,
.canvas-move-handle::after {
    content: '';
    position: absolute;
    width: var(--move-handle-dot-size);
    height: 50%;
    background:
        radial-gradient(circle, var(--color-primary, #6366f1) 0 50%, transparent 55%) center 0 / 100% 50% no-repeat,
        radial-gradient(circle, var(--color-primary, #6366f1) 0 50%, transparent 55%) center 100% / 100% 50% no-repeat;
    top: 25%;
}

.canvas-move-handle::before {
    left: 30%;
}

.canvas-move-handle::after {
    right: 30%;
}

.canvas-move-handle:active {
    cursor: grabbing;
}

.canvas-rotate-guide {
    position: absolute;
    height: 1.5px;
    background: color-mix(in srgb, var(--color-primary, #6366f1) 55%, white 10%);
    transform-origin: 0 50%;
    pointer-events: none;
    z-index: 10;
}

.canvas-rotate-handle {
    position: absolute;
    background: #fff;
    border: 1.5px solid var(--color-primary, #6366f1);
    border-radius: 999px;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.12);
    cursor: grab;
    pointer-events: all;
    z-index: 11;
}

.canvas-rotate-handle:active {
    cursor: grabbing;
}

.canvas-box-select {
    position: absolute;
    border: 1.5px dashed var(--color-primary, #6366f1);
    background: color-mix(in srgb, var(--color-primary, #6366f1) 8%, transparent);
    pointer-events: none;
    z-index: 20;
    border-radius: 2px;
}

/* Multi-select group bounding box — world-space, inside .canvas-world */
.canvas-selection-group-box {
    position: absolute;
    border: 1.5px dashed var(--color-primary, #6366f1);
    border-radius: 4px;
    pointer-events: none;
    z-index: 500;
}

/* Inline text editing textarea — rendered inside a node in world space */
.canvas-inline-edit-textarea {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    box-sizing: border-box;
    padding: 10px 12px;
    font-family: var(--font-sans, sans-serif);
    font-size: 13px;
    line-height: 1.55;
    color: var(--cn-sticky-text, #713f12);
    background: transparent;
    border: none;
    outline: none;
    resize: none;
    overflow-y: auto;
    cursor: text;
    /* Section title variant — single line feel */
}

.canvas-node--section .canvas-inline-edit-textarea {
    font-size: 12px;
    font-weight: 600;
    color: var(--color-ink-lighter, #6b7280);
    letter-spacing: 0.02em;
    height: auto;
    padding: 6px 10px;
}

/* Text label node: inherit the font-size/color set inline by renderTextNode */
.canvas-node--text .canvas-inline-edit-textarea {
    font-size: inherit;
    color: inherit;
    text-align: center;
    padding: 4px 8px;
    line-height: inherit;
    background: transparent;
}

/* ═══════════════════════════════════════════════════════════════
   10. DESIGN SYSTEM NODE
   ═══════════════════════════════════════════════════════════════ */

.canvas-node--block .cn-ds-node {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    font-family: var(--font-sans);
    font-size: 12px;
    background: var(--main-background-color);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-sizing: border-box;
    box-shadow: var(--shadow-sm);
}

.canvas-node--block .cn-ds-node--summary {
    padding: 12px;
    gap: 10px;
    background: radial-gradient(circle at 16% 10%, color-mix(in srgb, var(--color-ink) 8%, transparent), transparent 34%), var(--main-background-color);
    border-radius: var(--radius-lg);
}

.cn-ds-summary-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 10px;
}

.cn-ds-summary-kicker {
    font-size: 9px;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-ink-lighter);
}

.cn-ds-summary-type {
    width: 38px;
    height: 38px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 20px;
    font-weight: 800;
    letter-spacing: -0.06em;
    background: var(--main-background-color-secondary);
    color: var(--color-ink);
}

.cn-ds-summary-swatches {
    display: flex;
    height: 42px;
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid var(--border-color);
    flex-shrink: 0;
}

.cn-ds-summary-swatch {
    flex: 1 1 0;
    min-width: 12px;
    background: color-mix(in srgb, var(--color-ink) 12%, transparent);
}

.cn-ds-summary-stats {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 5px;
}

.cn-ds-summary-stat {
    min-width: 0;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 5px 4px;
    background: var(--main-background-color-secondary);
}

.cn-ds-summary-stat strong,
.cn-ds-summary-stat span {
    display: block;
    text-align: center;
}

.cn-ds-summary-stat strong {
    font-size: 13px;
    color: var(--color-ink);
}

.cn-ds-summary-stat span {
    margin-top: 1px;
    font-size: 8px;
    color: var(--color-ink-lighter);
    overflow: hidden;
    text-overflow: ellipsis;
}

.cn-ds-summary-panel {
    margin-top: auto;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 8px;
    background: var(--main-background-color-secondary);
}

.cn-ds-summary-panel + .cn-ds-summary-panel {
    margin-top: -4px;
}

.cn-ds-summary-panel-label {
    display: block;
    font-size: 9px;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--color-ink-lighter);
}

.cn-ds-summary-type-list {
    display: flex;
    flex-direction: column;
    gap: 5px;
    margin-top: 5px;
}

.cn-ds-summary-type-row {
    min-width: 0;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    background: var(--main-background-color);
    padding: 5px 7px;
}

.cn-ds-summary-type-sample {
    display: block;
    font-size: 17px;
    font-weight: 700;
    letter-spacing: -0.04em;
    line-height: 1.05;
    color: var(--color-ink);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.cn-ds-summary-type-name {
    display: block;
    margin-top: 1px;
    font-size: 10px;
    color: var(--color-ink-lighter);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.cn-ds-summary-type-more {
    display: inline-block;
    margin-top: 5px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    padding: 1px 6px;
    font-size: 9px;
    color: var(--color-ink-lighter);
    background: var(--main-background-color);
}

.cn-ds-summary-gradient-list {
    display: flex;
    flex-direction: column;
    gap: 5px;
    margin-top: 6px;
}

.cn-ds-summary-gradient {
    height: 22px;
    border-radius: var(--radius-sm);
    border: 1px solid color-mix(in srgb, #000 12%, transparent);
    display: flex;
    align-items: center;
    padding: 0 7px;
    overflow: hidden;
}

.cn-ds-summary-gradient em {
    font-style: normal;
    font-size: 9px;
    font-weight: 700;
    color: rgba(255, 255, 255, 0.92);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.45);
    text-transform: capitalize;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.cn-ds-summary-unit-stage {
    margin-top: 6px;
    min-height: 58px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    background: var(--main-background-color);
    padding: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.cn-ds-summary-unit-list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 6px;
    margin-top: 6px;
}

.cn-ds-summary-unit-item {
    min-width: 0;
}

.cn-ds-summary-unit-preview {
    max-width: 100%;
    max-height: 64px;
    min-width: 48px;
    min-height: 28px;
    pointer-events: none;
    transform: scale(0.78);
    transform-origin: center;
}

.cn-ds-summary-unit-name {
    display: block;
    margin-top: 4px;
    font-size: 10px;
    font-weight: 600;
    color: var(--color-ink-light);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.cn-ds-summary-unit-count {
    display: inline-block;
    margin-top: 5px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    padding: 1px 6px;
    font-size: 9px;
    color: var(--color-ink-lighter);
    background: var(--main-background-color);
}

.cn-ds-node-header {
    padding: 10px 12px 8px;
    border-bottom: 1px solid var(--border-color);
    flex-shrink: 0;
}

.cn-ds-node-name {
    font-size: 13px;
    font-weight: 700;
    color: var(--color-ink);
}

.cn-ds-node-desc {
    font-size: 11px;
    color: var(--color-ink-lighter);
    margin-top: 2px;
}

.cn-ds-node-sections {
    flex: 1;
    overflow-y: auto;
    padding: 8px 0;
}

.cn-ds-empty {
    padding: 16px 12px;
    font-size: 12px;
    color: var(--color-ink-lighter);
    text-align: center;
}

/* Individual sections */
.cn-ds-section {
    padding: 0 12px 10px;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 6px;
}

.cn-ds-section:last-child {
    border-bottom: none;
}

.cn-ds-section-title {
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-ink-lighter);
    margin-bottom: 7px;
    margin-top: 4px;
}

/* Colors */
.cn-ds-swatches {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
}

.cn-ds-swatch {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    width: 36px;
}

.cn-ds-swatch-color {
    width: 28px;
    height: 28px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
}

.cn-ds-swatch-label {
    font-size: 9px;
    color: var(--color-ink-lighter);
    text-align: center;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    max-width: 36px;
}

/* Gradients */
.cn-ds-gradients {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.cn-ds-gradient-item {
    height: 28px;
    border-radius: var(--radius-sm);
    position: relative;
    display: flex;
    align-items: center;
    padding: 0 8px;
}

.cn-ds-gradient-label {
    font-size: 10px;
    font-weight: 600;
    color: rgba(255,255,255,0.9);
    text-shadow: 0 1px 2px rgba(0,0,0,0.4);
    text-transform: capitalize;
}

/* Typography */
.cn-ds-type-specimen {
    margin-bottom: 6px;
}

.cn-ds-type-h {
    font-size: 18px;
    font-weight: 700;
    color: var(--color-ink);
    line-height: 1.2;
}

.cn-ds-type-family {
    font-size: 11px;
    color: var(--color-ink-lighter);
    margin-top: 2px;
}

.cn-ds-type-sizes {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.cn-ds-type-size-row {
    display: flex;
    justify-content: space-between;
    font-size: 11px;
}

.cn-ds-type-size-label {
    color: var(--color-ink-lighter);
    font-weight: 600;
}

.cn-ds-type-size-val {
    color: var(--color-ink);
    font-variant-numeric: tabular-nums;
}

/* Shadows */
.cn-ds-shadows {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.cn-ds-shadow-chip {
    width: 40px;
    height: 30px;
    background: var(--main-background-color-secondary);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 10px;
    color: var(--color-ink-lighter);
    font-weight: 600;
}

/* Radius */
.cn-ds-radius-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
}

.cn-ds-radius-chip {
    width: 30px;
    height: 30px;
    border: 1.5px solid var(--border-color-strong, var(--border-color));
    background: var(--main-background-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 9px;
    font-weight: 600;
    color: var(--color-ink-lighter);
}

/* Motion */
.cn-ds-motion-preview {
    height: 32px;
    display: flex;
    align-items: center;
    margin-bottom: 4px;
}

.cn-ds-motion-ball {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--color-primary, #6366f1);
    animation: cn-ds-bounce 1.2s ease-in-out infinite alternate;
}

@keyframes cn-ds-bounce {
    from { transform: translateX(0); }
    to   { transform: translateX(80px); }
}

.cn-ds-motion-desc {
    font-size: 10px;
    color: var(--color-ink-lighter);
    margin-bottom: 4px;
}

.cn-ds-motion-keyframes {
    display: flex;
    flex-wrap: wrap;
    gap: 3px;
}

/* Components */
.cn-ds-components-preview {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.cn-ds-comp-btn {
    background: var(--color-primary, #6366f1);
    color: #fff;
    border-radius: var(--radius-sm);
    font-size: 11px;
    font-weight: 600;
    padding: 5px 10px;
    cursor: default;
}

.cn-ds-comp-input {
    height: 28px;
    border: 1px solid var(--border-color-strong, var(--border-color));
    border-radius: var(--radius-sm);
    padding: 0 8px;
    font-size: 11px;
    color: var(--color-ink-lighter);
    background: var(--main-background-color);
    display: flex;
    align-items: center;
    min-width: 60px;
}

.cn-ds-comp-card-chip {
    padding: 4px 8px;
    background: var(--main-background-color-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 11px;
    color: var(--color-ink-lighter);
    box-shadow: 0 1px 3px rgba(0,0,0,0.08);
}

/* Patterns */
.cn-ds-pattern-preview {
    height: 40px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
}

/* Token rows (spacing, borders, transitions) */
.cn-ds-token-row {
    display: flex;
    justify-content: space-between;
    font-size: 11px;
    margin-bottom: 3px;
}

.cn-ds-token-key {
    color: var(--color-ink-lighter);
    font-weight: 600;
}

.cn-ds-token-val {
    color: var(--color-ink);
    font-variant-numeric: tabular-nums;
}

/* Tag chips (motion keyframe names) */
.cn-ds-tag {
    font-size: 10px;
    padding: 2px 6px;
    background: var(--main-background-color-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full, 999px);
    color: var(--color-ink-lighter);
}

/* ═══════════════════════════════════════════════════════════════
   10b. DESIGN SYSTEM INLINE EDITOR
   Full section editor that replaces the DS node preview on dblclick.
   ═══════════════════════════════════════════════════════════════ */

.canvas-ds-inline-editor {
    display: flex;
    flex-direction: column;
    width: 100%;
    height: 100%;
    background: var(--main-background-color);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: hidden;
    font-family: var(--font-sans);
    font-size: 12px;
    box-sizing: border-box;
}

/* Header: title + cancel/save buttons */
.canvas-ds-editor-header {
    display: flex;
    align-items: center;
    gap: 5px;
    padding: 7px 10px;
    border-bottom: 1px solid var(--border-color);
    flex-shrink: 0;
    background: var(--main-background-color-secondary);
}

.canvas-ds-editor-title {
    flex: 1;
    font-weight: 600;
    font-size: 12px;
    color: var(--color-ink);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    min-width: 0;
}

.canvas-ds-editor-save,
.canvas-ds-editor-cancel {
    flex-shrink: 0;
    padding: 3px 10px;
    border-radius: var(--radius-sm);
    font-size: 11px;
    font-weight: 600;
    cursor: pointer;
    border: 1px solid transparent;
    font-family: var(--font-sans);
    line-height: 1.4;
    transition: opacity 0.12s, background 0.12s;
}

.canvas-ds-editor-save {
    background: var(--color-primary, #6366f1);
    color: #fff;
    border-color: var(--color-primary, #6366f1);
}

.canvas-ds-editor-save:hover:not(:disabled) { opacity: 0.88; }
.canvas-ds-editor-save:disabled {
    opacity: 0.45;
    cursor: not-allowed;
}

.canvas-ds-editor-cancel {
    background: transparent;
    color: var(--color-ink-lighter);
    border-color: var(--border-color);
}

.canvas-ds-editor-cancel:hover {
    background: var(--main-background-color-third, var(--border-color));
}

/* Scrollable section list */
.canvas-ds-editor-body {
    flex: 1;
    overflow-y: auto;
    padding: 0;
}

.canvas-ds-editor-section {
    border-bottom: 1px solid var(--border-color);
}

.canvas-ds-editor-section:last-child {
    border-bottom: none;
}

.canvas-ds-editor-section-header {
    padding: 5px 10px;
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--color-ink-lighter);
    background: var(--main-background-color-secondary);
    border-bottom: 1px solid var(--border-color);
    user-select: none;
}

.canvas-ds-editor-section-content {
    padding: 7px 10px 8px;
}

/* Field rows */
.canvas-ds-field-row {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-bottom: 5px;
}

.canvas-ds-field-row:last-child { margin-bottom: 0; }

.canvas-ds-field-row--info {
    margin-top: 3px;
    margin-bottom: 0;
}

.canvas-ds-field-label {
    flex: 1;
    font-size: 11px;
    color: var(--color-ink-lighter);
    white-space: nowrap;
    min-width: 70px;
    max-width: 90px;
}

/* Color swatch input */
.canvas-ds-field-color {
    width: 26px;
    height: 20px;
    border: 1px solid var(--border-color);
    border-radius: 3px;
    padding: 1px 2px;
    cursor: pointer;
    background: transparent;
    flex-shrink: 0;
}

/* Paired hex text input */
.canvas-ds-field-hex {
    font-family: ui-monospace, monospace !important;
}

/* Generic text input */
.canvas-ds-field-text {
    flex: 1;
    font-size: 11px;
    padding: 2px 6px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    background: var(--main-background-color);
    color: var(--color-ink);
    font-family: var(--font-sans);
    min-width: 0;
    line-height: 1.4;
    transition: border-color 0.1s;
}

.canvas-ds-field-text:focus {
    outline: none;
    border-color: var(--color-primary, #6366f1);
}

/* Gradient sub-group */
.canvas-ds-gradient-group {
    margin-bottom: 8px;
    padding-bottom: 8px;
    border-bottom: 1px dashed var(--border-color);
}

.canvas-ds-gradient-group:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.canvas-ds-gradient-label {
    font-size: 10px;
    font-weight: 700;
    color: var(--color-ink-lighter);
    text-transform: capitalize;
    display: block;
    margin-bottom: 4px;
}

/* Custom colors list */
.canvas-ds-custom-colors {
    margin-top: 5px;
    margin-bottom: 4px;
}

.canvas-ds-custom-color-row {
    display: flex;
    align-items: center;
    gap: 4px;
    margin-bottom: 4px;
}

.canvas-ds-custom-name {
    flex: 1;
    font-size: 11px;
    padding: 2px 6px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    background: var(--main-background-color);
    color: var(--color-ink);
    font-family: var(--font-sans);
    min-width: 0;
    line-height: 1.4;
}

.canvas-ds-custom-name:focus {
    outline: none;
    border-color: var(--color-primary, #6366f1);
}

.canvas-ds-remove-btn {
    flex-shrink: 0;
    padding: 1px 6px;
    font-size: 10px;
    cursor: pointer;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--color-ink-lighter);
    line-height: 1.6;
    transition: background 0.1s, color 0.1s;
}

.canvas-ds-remove-btn:hover {
    background: #fef2f2;
    color: #ef4444;
    border-color: #fca5a5;
}

.canvas-ds-add-btn {
    font-size: 11px;
    padding: 3px 8px;
    cursor: pointer;
    background: transparent;
    border: 1px dashed var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--color-primary, #6366f1);
    font-family: var(--font-sans);
    width: 100%;
    text-align: left;
    margin-top: 2px;
    transition: background 0.1s;
}

.canvas-ds-add-btn:hover {
    background: var(--main-background-color-secondary);
}

/* Scrollbar inside the editor body */
.canvas-ds-editor-body::-webkit-scrollbar { width: 4px; }
.canvas-ds-editor-body::-webkit-scrollbar-thumb {
    background: var(--border-color-strong, var(--border-color));
    border-radius: 2px;
}

/* ═══════════════════════════════════════════════════════════════
   11. BOARD TILE MINIMAP PREVIEW
   ═══════════════════════════════════════════════════════════════ */

.block-canvas-preview {
    position: relative;
    background: var(--main-background-color-secondary);
    border-radius: var(--radius-md);
    overflow: hidden;
    padding: 6px;
}

.block-canvas-preview-minimap {
    background: var(--main-background-color);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.block-canvas-chip {
    position: absolute;
    pointer-events: none;
}

.block-canvas-preview-badge {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 10px;
    font-weight: 600;
    color: var(--color-ink-lighter);
    margin-top: 5px;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.block-canvas-preview-meta {
    font-size: 10px;
    color: var(--color-ink-lighter);
    margin-top: 2px;
}

/* ═══════════════════════════════════════════════════════════════
   12. SCROLLBARS + MISC
   ═══════════════════════════════════════════════════════════════ */

.canvas-block-palette::-webkit-scrollbar,
.canvas-palette-list::-webkit-scrollbar,
.cn-ds-node-sections::-webkit-scrollbar,
.cn-sticky-body::-webkit-scrollbar,
.cn-block-text::-webkit-scrollbar {
    width: 4px;
}

.canvas-block-palette::-webkit-scrollbar-thumb,
.canvas-palette-list::-webkit-scrollbar-thumb,
.cn-ds-node-sections::-webkit-scrollbar-thumb,
.cn-sticky-body::-webkit-scrollbar-thumb,
.cn-block-text::-webkit-scrollbar-thumb {
    background: var(--border-color-strong, var(--border-color));
    border-radius: 2px;
}

/* Ensure canvas editor fills the full side panel body height */
.ncp-modality-body .canvas-modality-editor,
.ncp-modality-body .ncp-canvas-view {
    min-height: min(960px, calc(var(--interface-viewport-height, 100vh) - 190px));
    height: 100%;
    max-height: min(960px, calc(var(--interface-viewport-height, 100vh) - 190px));
}

@media (max-width: 767px) {
    .ncp-canvas-view {
        min-height: min(360px, calc(var(--interface-viewport-height, 100vh) - 140px));
        height: min(720px, calc(var(--interface-viewport-height, 100vh) - 120px)) !important;
    }

    .ncp-modality-body .canvas-modality-editor,
    .ncp-modality-body .ncp-canvas-view {
        min-height: min(360px, calc(var(--interface-viewport-height, 100vh) - 160px));
        max-height: calc(var(--interface-viewport-height, 100vh) - 120px);
    }
}

/* ═══════════════════════════════════════════════════════════════
   LAYER / Z-ORDER CONTROLS
   Floating bar anchored to the top-right corner of a focused node.
   Only shown in edit mode when exactly one regular node is selected.
   ═══════════════════════════════════════════════════════════════ */

.canvas-layer-controls {
    position: absolute;
    display: flex;
    align-items: center;
    gap: 1px;
    padding: 2px;
    background: var(--bg-surface, #ffffff);
    border: 1px solid var(--border-color, #e5e7eb);
    border-radius: 7px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.10), 0 0 0 0.5px rgba(0,0,0,0.04);
    z-index: 11;
    pointer-events: all;
    user-select: none;
    /* Anchor bottom-left to the world position set in JS, offset slightly above */
    transform: translate(4px, calc(-100% - 6px));
    /* Subtle entrance */
    transition: opacity 0.1s ease;
}

.canvas-layer-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 26px;
    height: 26px;
    padding: 0;
    border: none;
    background: transparent;
    border-radius: 5px;
    cursor: pointer;
    color: var(--color-ink-light, #6b7280);
    flex-shrink: 0;
    transition: background 0.1s ease, color 0.1s ease;
}

.canvas-layer-btn:hover:not(:disabled) {
    background: var(--bg-hover, #f3f4f6);
    color: var(--color-ink, #111827);
}

.canvas-layer-btn:active:not(:disabled) {
    background: var(--bg-active, #e5e7eb);
}

.canvas-layer-btn:disabled {
    opacity: 0.28;
    cursor: not-allowed;
}

.canvas-layer-btn svg {
    display: block;
    flex-shrink: 0;
    pointer-events: none;
}

.canvas-layer-divider {
    width: 1px;
    height: 14px;
    background: var(--border-color, #e5e7eb);
    margin: 0 2px;
    flex-shrink: 0;
}