/* ==========================================================================
   Canvas Preview Panel + Result Widget
   Minimalistic, clean design matching slide presentation patterns
   (Supports markdown + CSV with inline LaTeX inside markdown)
   ========================================================================== */

/* ── Theme Tokens ────────────────────────── */
:root {
    --canvas-md-card-bg: var(--bg-primary, #ffffff);
    --canvas-md-card-border: var(--border-color, rgba(0, 0, 0, 0.08));
    --canvas-md-card-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
    --canvas-md-text-primary: var(--text-color, #1a1a1a);
    --canvas-md-text-secondary: var(--text-color-secondary, #6b7280);
    --canvas-md-input-bg: var(--bg-normal);
    --canvas-md-accent: var(--accent-color, #3b82f6);
    --canvas-md-preview-bg: var(--bg-normal);
    --canvas-md-preview-border: var(--border-color, rgba(0, 0, 0, 0.08));
    --canvas-markdown-preview-width: 50vw;
    --canvas-markdown-preview-min-width: 420px;
    --canvas-markdown-preview-min-main-width: 360px;
}

:root[data-mode="dark"] {
    --canvas-md-card-bg: var(--bg-primary, #18181b);
    --canvas-md-card-border: var(--border-color, rgba(255, 255, 255, 0.08));
    --canvas-md-card-shadow: 0 4px 16px rgba(0, 0, 0, 0.4);
    --canvas-md-text-primary: var(--text-color, #f5f5f5);
    --canvas-md-text-secondary: var(--text-color-secondary, #a1a1aa);
    --canvas-md-input-bg: #27272a;
    --canvas-md-preview-bg: #1c1c20;
    --canvas-md-preview-border: rgba(255, 255, 255, 0.06);
}

/* ── Panel Layout (matches slide presentation) ────────────────────────── */
.canvas-markdown-preview-panel {
    position: fixed;
    top: 0;
    right: 0;
    width: clamp(
        var(--canvas-markdown-preview-min-width),
        var(--canvas-markdown-preview-width),
        calc(100vw - var(--canvas-markdown-preview-min-main-width))
    );
    max-width: none;
    min-width: var(--canvas-markdown-preview-min-width);
    height: 100vh;
    display: flex;
    flex-direction: column;
    container-type: inline-size;
    container-name: canvas-preview;
    background: var(--canvas-md-preview-bg);
    border-left: 1px solid var(--canvas-md-preview-border);
    z-index: 40;
    overflow: hidden;
    transform: translateX(100%);
    opacity: 0;
    transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1),
                opacity 0.25s ease,
                width 0.18s ease;
}

.canvas-markdown-preview-panel.visible {
    transform: translateX(0);
    opacity: 1;
}

body.canvas-markdown-preview-open .main-container {
    margin-right: clamp(
        var(--canvas-markdown-preview-min-width),
        var(--canvas-markdown-preview-width),
        calc(100vw - var(--canvas-markdown-preview-min-main-width))
    );
    transition: margin-right 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

.canvas-markdown-preview-resizer {
    position: absolute;
    top: 0;
    left: -7px;
    width: 14px;
    height: 100%;
    padding: 0;
    border: 0;
    background: transparent;
    color: var(--canvas-md-accent);
    cursor: col-resize;
    touch-action: none;
    z-index: 3;
}

.canvas-markdown-preview-resizer::before {
    content: "";
    position: absolute;
    top: 0;
    bottom: 0;
    left: 6px;
    width: 2px;
    background: transparent;
    transition: background-color 0.16s ease, box-shadow 0.16s ease;
}

.canvas-markdown-preview-resizer:focus-visible {
    outline: 2px solid var(--canvas-md-accent);
    outline-offset: -4px;
}

.canvas-markdown-preview-resizer:focus-visible::before,
body.canvas-markdown-preview-resizing .canvas-markdown-preview-resizer::before {
    background: currentColor;
    box-shadow: 0 0 0 3px color-mix(in srgb, currentColor 18%, transparent);
}

@media (hover: hover) and (pointer: fine) {
    .canvas-markdown-preview-resizer:hover::before {
        background: currentColor;
        box-shadow: 0 0 0 3px color-mix(in srgb, currentColor 12%, transparent);
    }
}

body.canvas-markdown-preview-resizing {
    cursor: col-resize;
    user-select: none;
}

body.canvas-markdown-preview-resizing .main-container,
body.canvas-markdown-preview-resizing .canvas-markdown-preview-panel {
    transition: none !important;
}

body.canvas-markdown-preview-resizing .canvas-html-preview-iframe,
body.canvas-markdown-preview-resizing .canvas-latex-pdf-preview-frame {
    pointer-events: none;
}

@media (max-width: 900px) {
    .canvas-markdown-preview-panel {
        width: 100%;
        min-width: unset;
        z-index: 200;
    }
    body.canvas-markdown-preview-open .main-container {
        margin-right: 0;
    }

    .canvas-markdown-preview-resizer {
        display: none;
    }
}

/* ── Panel Header ────────────────────────── */
.canvas-markdown-preview-header {
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 16px;
    background: var(--canvas-md-card-bg);
    flex-shrink: 0;
}

.canvas-markdown-preview-header-left {
    display: flex;
    align-items: center;
    gap: 12px;
    min-width: 0;
}

.canvas-markdown-preview-header-right {
    display: flex;
    align-items: center;
    gap: 8px;
    justify-content: flex-end;
    min-width: 0;
}

.canvas-markdown-copy-btn[data-copy-state="copied"],
.canvas-markdown-copy-btn[data-copy-state="error"] {
    opacity: 1;
    pointer-events: auto;
}

.canvas-markdown-copy-btn[data-copy-state="copied"] {
    color: #22c55e;
}

.canvas-markdown-copy-btn[data-copy-state="error"] {
    color: #ef4444;
}

.canvas-markdown-editor-header-controls {
    display: none;
    align-items: center;
    gap: 8px;
    min-width: 0;
}

.canvas-markdown-preview-panel[data-content-type="markdown"] .canvas-markdown-editor-header-controls {
    display: flex;
}

/* ── Markdown / Editor view toggle ─────────────────────────
   A segmented "tab switcher" that lets the user flip between the
   raw Markdown source and the rich editor. It replaces the old
   circular header buttons with a compact, pill-style control
   where the active tab is highlighted with an elevated surface. */
.canvas-markdown-editor-view-toggle {
    /* Segmented container: a soft, recessed track that visually
       groups the two tabs together. */
    display: inline-flex;
    align-items: center;
    gap: 2px;
    padding: 3px;
    border-radius: 10px;
    background: var(--canvas-md-input-bg);
    border: 1px solid var(--canvas-md-card-border);
}

.canvas-markdown-editor-view-btn {
    /* Individual tab: transparent by default so only the active tab
       shows the raised surface. */
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 5px 12px;
    border: none;
    border-radius: 7px;
    background: transparent;
    color: var(--canvas-md-text-secondary);
    font-family: inherit;
    font-size: 12.5px;
    font-weight: 600;
    line-height: 1;
    white-space: nowrap;
    cursor: pointer;
    transition: background-color 0.18s ease, color 0.18s ease, box-shadow 0.18s ease;
}

/* Icon wrapper keeps the SVG optically aligned with the label. */
.canvas-markdown-editor-view-btn-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.canvas-markdown-editor-view-btn-icon svg {
    width: 15px;
    height: 15px;
}

.canvas-markdown-editor-view-btn-label {
    /* The visible text label; provides the accessible name for the tab. */
    display: inline-block;
}

@container canvas-preview (max-width: 680px) {
    .canvas-markdown-editor-view-btn {
        width: 30px;
        min-width: 30px;
        padding-inline: 0;
        gap: 0;
    }

    .canvas-markdown-editor-view-btn-label {
        display: none;
    }
}

/* Active tab: raised surface with a subtle shadow so it reads as the
   currently selected view. */
.canvas-markdown-editor-view-btn.active {
    background: var(--canvas-md-card-bg);
    color: var(--canvas-md-text-primary);
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.08), 0 1px 3px rgba(0, 0, 0, 0.06);
}

.canvas-markdown-editor-view-btn:focus-visible {
    outline: 2px solid var(--canvas-md-accent);
    outline-offset: 2px;
}

/* Only apply hover feedback on hover-capable pointers (not touch). */
@media (hover: hover) and (pointer: fine) {
    .canvas-markdown-editor-view-btn:not(:disabled):not(.active):hover {
        color: var(--canvas-md-text-primary);
    }
}

.canvas-markdown-editor-view-btn:disabled,
.canvas-markdown-editor-view-btn.is-disabled {
    cursor: not-allowed;
    opacity: 0.5;
}

.canvas-markdown-editor-history-controls {
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

@container canvas-preview (max-width: 600px) {
    .canvas-markdown-editor-history-controls {
        display: none;
    }
}

.canvas-reference-floating-toolbar {
    --canvas-reference-tooltip-bg: #ffffff;
    --canvas-reference-tooltip-border: #bfdbfe;
    --canvas-reference-tooltip-shadow: 0 18px 38px rgba(15, 23, 42, 0.18);
    --canvas-reference-btn-bg: #2563eb;
    --canvas-reference-btn-hover-bg: #1d4ed8;
    --canvas-reference-btn-text: #ffffff;
    --canvas-reference-btn-hover-text: #ffffff;
    position: fixed;
    z-index: 260;
    display: flex;
    padding: 5px;
    border: 1px solid var(--canvas-reference-tooltip-border);
    border-radius: 14px;
    background-color: var(--canvas-reference-tooltip-bg);
    box-shadow: var(--canvas-reference-tooltip-shadow);
    transition: background-color 0.16s ease, border-color 0.16s ease, box-shadow 0.16s ease;
}

[data-mode="dark"] .canvas-reference-floating-toolbar {
    --canvas-reference-tooltip-bg: #202124;
    --canvas-reference-tooltip-border: #3b4658;
    --canvas-reference-tooltip-shadow: 0 18px 42px rgba(0, 0, 0, 0.5);
    --canvas-reference-btn-bg: #7ab7ff;
    --canvas-reference-btn-hover-bg: #9ccbff;
    --canvas-reference-btn-text: #0b1220;
    --canvas-reference-btn-hover-text: #08111f;
}

.canvas-reference-floating-toolbar[hidden] {
    display: none;
}

.canvas-reference-floating-toolbar::after {
    content: "";
    position: absolute;
    left: 50%;
    bottom: -5px;
    width: 10px;
    height: 10px;
    background-color: var(--canvas-reference-tooltip-bg);
    border-bottom: 1px solid var(--canvas-reference-tooltip-border);
    border-right: 1px solid var(--canvas-reference-tooltip-border);
    transform: translateX(-50%) rotate(45deg);
    transition: background-color 0.16s ease, border-color 0.16s ease;
}

.canvas-reference-floating-toolbar.is-below::after {
    top: -5px;
    bottom: auto;
}

.canvas-reference-floating-btn {
    min-height: 34px;
    border: none;
    border-radius: 10px;
    background-color: var(--canvas-reference-btn-bg);
    color: var(--canvas-reference-btn-text);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 0 12px;
    font-family: inherit;
    font-size: 12.5px;
    font-weight: 700;
    white-space: nowrap;
    transition: background-color 0.16s ease, color 0.16s ease, box-shadow 0.16s ease, transform 0.16s ease;
}

@media (hover: hover) and (pointer: fine) {
    .canvas-reference-floating-btn:hover {
        background-color: var(--canvas-reference-btn-hover-bg);
        color: var(--canvas-reference-btn-hover-text);
        box-shadow: 0 8px 18px rgba(37, 99, 235, 0.25);
        transform: translateY(-1px);
    }
}

.canvas-reference-floating-btn svg {
    width: 15px;
    height: 15px;
    fill: none;
    stroke: currentColor;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
    flex-shrink: 0;
}

.canvas-markdown-preview-title-wrap {
    display: flex;
    flex-direction: column;
    gap: 2px;
    min-width: 0;
}

.canvas-markdown-preview-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--canvas-md-text-primary);
    text-overflow: ellipsis;
    white-space: nowrap;
    overflow: hidden;
}

.canvas-markdown-preview-status {
    font-size: 11px;
    color: var(--canvas-md-text-secondary);
    display: flex;
    align-items: center;
    gap: 6px;
}

.canvas-markdown-preview-status.generating::before {
    content: "";
    width: 6px;
    height: 6px;
    background: var(--canvas-md-accent);
    border-radius: 50%;
    animation: pulseDim 1.5s ease-in-out infinite;
}

.canvas-markdown-preview-status.complete::before {
    content: "";
    width: 6px;
    height: 6px;
    background: #22c55e;
    border-radius: 50%;
}

.canvas-markdown-preview-status.unsaved::before {
    content: "";
    width: 6px;
    height: 6px;
    background: #f59e0b;
    border-radius: 50%;
}

.canvas-markdown-preview-status.error::before {
    content: "";
    width: 6px;
    height: 6px;
    background: #ef4444;
    border-radius: 50%;
}

/* Download controls
   The canvas/markdown preview reuses the shared slide-presentation download
   controls (the `.slide-presentation-preview-download-controls` pill with a
   `.slide-presentation-preview-download-select`). The format select is only
   shown for LaTeX PDF previews. When it is hidden (e.g. plain markdown
   canvas), drop the outer pill chrome so only the circular download button
   remains visible. */
.canvas-markdown-preview-header-right .slide-presentation-preview-download-controls:has(.slide-presentation-preview-download-select[hidden]) {
    background: transparent;
    border-color: transparent;
    padding-left: 0;
}

.canvas-markdown-share-btn[hidden] {
    display: none !important;
}

/* ── Workspace (main content area) ────────────────────────── */
.canvas-markdown-preview-workspace {
    flex: 1;
    display: flex;
    overflow: hidden;
    border-top: 1px solid var(--canvas-md-preview-border);
    background: var(--canvas-md-preview-bg);
    min-width: 0;
}

/* ── Document Track (single scrollable document) ────────────────────────── */
.canvas-markdown-preview-track {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    scrollbar-width: thin;
    scrollbar-color: var(--canvas-md-preview-border) transparent;
}

.canvas-markdown-preview-track::-webkit-scrollbar {
    width: 6px;
}

.canvas-markdown-preview-track::-webkit-scrollbar-track {
    background: transparent;
}

.canvas-markdown-preview-track::-webkit-scrollbar-thumb {
    background: var(--canvas-md-preview-border);
    border-radius: 3px;
}

/* Single document container */
.canvas-markdown-preview-page {
    width: 100%;
    background: var(--canvas-md-card-bg);
    box-shadow: var(--canvas-md-card-shadow);
}

:root[data-mode="dark"] .canvas-markdown-preview-page {
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.canvas-markdown-preview-page-content {
    padding: 20px 20px;
    color: var(--canvas-md-text-primary);
}

/* ── Rendered Markdown Styling ────────────────────────── */
.canvas-markdown-render.markdown-body {
    color: var(--canvas-md-text-primary);
    font-size: 15px;
    line-height: 1.7;
}

.canvas-markdown-render.markdown-body h1 {
    font-size: 2rem;
    font-weight: 700;
    line-height: 1.2;
    margin: 0 0 24px 0;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--canvas-md-preview-border);
    letter-spacing: -0.02em;
    color: var(--canvas-md-text-primary);
}

.canvas-markdown-render.markdown-body h2 {
    font-size: 1.5rem;
    font-weight: 600;
    line-height: 1.3;
    margin: 32px 0 16px 0;
    letter-spacing: -0.01em;
    color: var(--canvas-md-text-primary);
}

.canvas-markdown-render.markdown-body h3 {
    font-size: 1.25rem;
    font-weight: 600;
    line-height: 1.4;
    margin: 24px 0 12px 0;
    color: var(--canvas-md-text-primary);
}

.canvas-markdown-render.markdown-body h4,
.canvas-markdown-render.markdown-body h5,
.canvas-markdown-render.markdown-body h6 {
    font-size: 1rem;
    font-weight: 600;
    line-height: 1.5;
    margin: 20px 0 8px 0;
    color: var(--canvas-md-text-primary);
}

.canvas-markdown-render.markdown-body p {
    margin: 0 0 16px 0;
    color: var(--canvas-md-text-primary);
}

.canvas-markdown-render.markdown-body p:last-child {
    margin-bottom: 0;
}

.canvas-markdown-render.markdown-body ul,
.canvas-markdown-render.markdown-body ol {
    margin: 0 0 16px 0;
    padding-left: 24px;
}

.canvas-markdown-render.markdown-body li {
    margin-bottom: 8px;
    color: var(--canvas-md-text-primary);
}

.canvas-markdown-render.markdown-body li:last-child {
    margin-bottom: 0;
}

.canvas-markdown-render.markdown-body blockquote {
    margin: 16px 0;
    padding: 12px 20px;
    border-left: 3px solid var(--canvas-md-accent);
    background: var(--canvas-md-input-bg);
    border-radius: 0 8px 8px 0;
    color: var(--canvas-md-text-secondary);
}

.canvas-markdown-render.markdown-body blockquote p {
    margin: 0;
}

.canvas-markdown-render.markdown-body code {
    font-family: "JetBrains Mono", "SF Mono", "Fira Code", monospace;
    font-size: 0.875em;
    background: var(--canvas-md-input-bg);
    padding: 2px 6px;
    border-radius: 4px;
    color: var(--canvas-md-text-primary);
}

.canvas-markdown-render.markdown-body pre {
    margin: 16px 0;
    padding: 16px;
    background: var(--canvas-md-input-bg);
    border: 1px solid var(--canvas-md-preview-border);
    border-radius: 8px;
    overflow-x: auto;
}

.canvas-markdown-render.markdown-body pre code {
    background: none;
    padding: 0;
    font-size: 13px;
    line-height: 1.6;
}

.canvas-markdown-render.markdown-body hr {
    margin: 32px 0;
    border: none;
    border-top: 1px solid var(--canvas-md-preview-border);
}

.canvas-markdown-render.markdown-body table {
    width: 100%;
    margin: 16px 0;
    border-collapse: collapse;
    font-size: 14px;
}

.canvas-markdown-render.markdown-body th,
.canvas-markdown-render.markdown-body td {
    padding: 10px 12px;
    border: 1px solid var(--canvas-md-preview-border);
    text-align: left;
}

.canvas-markdown-render.markdown-body th {
    background: var(--canvas-md-input-bg);
    font-weight: 600;
}

.canvas-markdown-render.markdown-body a {
    color: var(--canvas-md-accent);
    text-decoration: none;
}

@media (hover: hover) and (pointer: fine) {
    .canvas-markdown-render.markdown-body a:hover {
        text-decoration: underline;
    }
}

.canvas-markdown-render.markdown-body img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    margin: 16px 0;
}

.canvas-markdown-render.markdown-body .katex-display {
    margin: 16px 0;
    padding: 16px;
    background: var(--canvas-md-input-bg);
    border-radius: 8px;
    overflow-x: auto;
}

/* ── Result Widget (in-chat) ────────────────────────── */
.canvas-markdown-result-widget {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 18px;
    border: 1px solid var(--canvas-md-card-border);
    border-radius: 12px;
    max-width: 420px;
}

.canvas-markdown-result-header {
    display: flex;
    align-items: center;
    gap: 10px;
    flex: 1;
    min-width: 0;
}

.canvas-markdown-result-icon {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    background: rgba(59, 130, 246, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    color: var(--canvas-md-accent);
}

:root[data-mode="dark"] .canvas-markdown-result-icon {
    background: rgba(59, 130, 246, 0.15);
}

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

.canvas-markdown-result-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--canvas-md-text-primary);
    text-overflow: ellipsis;
    white-space: nowrap;
    overflow: hidden;
    margin-bottom: 2px;
}

.canvas-markdown-result-sub {
    font-size: 12px;
    color: var(--canvas-md-text-secondary);
}

.canvas-markdown-result-open-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    background: var(--canvas-md-accent);
    color: #ffffff;
    border: none;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: opacity 0.2s ease;
    flex-shrink: 0;
    white-space: nowrap;
    font-family: inherit;
}

@media (hover: hover) and (pointer: fine) {
    .canvas-markdown-result-open-btn:hover {
        opacity: 0.85;
    }
}

/* ── CSV Table Styling ────────────────────────── */
.canvas-csv-render {
    width: 100%;
}

.canvas-csv-table-wrapper {
    width: 100%;
    overflow-x: auto;
    border-radius: 8px;
    border: 1px solid var(--canvas-md-preview-border);
}

.canvas-csv-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
    line-height: 1.5;
    min-width: 400px;
}

.canvas-csv-table thead {
    position: sticky;
    top: 0;
    z-index: 1;
}

.canvas-csv-table th {
    background: var(--canvas-md-input-bg);
    color: var(--canvas-md-text-primary);
    font-weight: 600;
    text-align: left;
    padding: 12px 16px;
    border-bottom: 2px solid var(--canvas-md-preview-border);
    white-space: nowrap;
}

.canvas-csv-table td {
    padding: 10px 16px;
    border-bottom: 1px solid var(--canvas-md-preview-border);
    color: var(--canvas-md-text-primary);
    vertical-align: top;
}

@media (hover: hover) and (pointer: fine) {
    .canvas-csv-table tbody tr:hover {
        background: rgba(59, 130, 246, 0.04);
    }
}

@media (hover: hover) and (pointer: fine) {
    :root[data-mode="dark"] .canvas-csv-table tbody tr:hover {
        background: rgba(59, 130, 246, 0.08);
    }
}

.canvas-csv-table tbody tr:last-child td {
    border-bottom: none;
}

/* Alternating row colors */
.canvas-csv-table tbody tr:nth-child(even) {
    background: rgba(0, 0, 0, 0.02);
}

:root[data-mode="dark"] .canvas-csv-table tbody tr:nth-child(even) {
    background: rgba(255, 255, 255, 0.02);
}

.canvas-markdown-result-icon.canvas-type-csv {
    background: rgba(76, 175, 80, 0.1);
    color: #4caf50;
}

:root[data-mode="dark"] .canvas-markdown-result-icon.canvas-type-csv {
    background: rgba(76, 175, 80, 0.15);
    color: #81c784;
}

.canvas-markdown-result-icon.canvas-type-html {
    background: rgba(233, 76, 48, 0.1);
    color: #e94c30;
}

:root[data-mode="dark"] .canvas-markdown-result-icon.canvas-type-html {
    background: rgba(233, 76, 48, 0.15);
    color: #ff7961;
}

.canvas-markdown-result-icon.canvas-type-mermaid {
    background: rgba(20, 184, 166, 0.12);
    color: #0f766e;
}

:root[data-mode="dark"] .canvas-markdown-result-icon.canvas-type-mermaid {
    background: rgba(20, 184, 166, 0.2);
    color: #5eead4;
}

/* ── Code/Preview Toggle (HTML type) ────────────────────────── */
.canvas-html-view-toggle {
    display: none;
    align-items: center;
    gap: 4px;
    padding: 0;
}

.canvas-markdown-preview-panel[data-content-type="html"] .canvas-html-view-toggle,
.canvas-markdown-preview-panel[data-content-type="csv"] .canvas-html-view-toggle,
.canvas-markdown-preview-panel[data-content-type="mermaid"] .canvas-html-view-toggle,
.canvas-markdown-preview-panel[data-content-type="latex"] .canvas-html-view-toggle {
    display: flex;
}

@media (hover: hover) and (pointer: fine) {
    .canvas-html-view-toggle-btn:hover {
        color: var(--canvas-md-text-primary);
    }
}

.canvas-html-view-toggle-btn:disabled,
.canvas-html-view-toggle-btn.disabled {
    opacity: 0.45;
    cursor: not-allowed;
    pointer-events: none;
    color: var(--canvas-md-text-secondary);
}

@media (hover: hover) and (pointer: fine) {
    .canvas-html-view-toggle-btn:disabled:hover, .canvas-html-view-toggle-btn.disabled:hover {
        color: var(--canvas-md-text-secondary);
    }
}

.canvas-html-view-toggle-btn.active {
    background: var(--canvas-md-input-bg);
    color: var(--canvas-md-text-primary);
}

/* ── HTML Preview Iframe (sandboxed) ────────────────────────── */
.canvas-html-preview-iframe {
    width: 100%;
    height: 100%;
    min-height: 400px;
    border: none;
    border-radius: 8px;
    background: #ffffff;
}

.canvas-latex-pdf-preview-frame {
    min-height: 620px;
    border-radius: 0;
}

.canvas-html-preview-wrapper {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    background: var(--canvas-md-card-bg);
    border-radius: 8px;
    overflow: hidden;
}

.canvas-markdown-editor-host {
    width: 100%;
    min-height: 400px;
}

.canvas-preview-pane {
    width: 100%;
    min-height: 400px;
}

.canvas-html-preview-wrapper.code-view .canvas-preview-pane {
    display: none;
}

.canvas-html-preview-wrapper.preview-view .canvas-html-code-view {
    display: none;
}

/* ── HTML Code View ────────────────────────── */
.canvas-html-code-view {
    width: 100%;
    height: 100%;
    min-height: 400px;
    overflow: auto;
    background: var(--canvas-md-input-bg);
    border-radius: 8px;
    font-family: "JetBrains Mono", "SF Mono", "Fira Code", monospace;
    font-size: 13px;
    line-height: 1.6;
    color: var(--canvas-md-text-primary);
    white-space: pre;
    word-wrap: normal;
    border: 1px solid var(--canvas-md-preview-border);
    padding: 14px 16px;
    resize: none;
    outline: none;
    caret-color: var(--canvas-md-accent);
    tab-size: 4;
}

.canvas-html-code-view:focus {
    border-color: var(--canvas-md-accent);
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.2);
}

.canvas-html-code-view:disabled {
    opacity: 0.64;
    cursor: not-allowed;
}

.canvas-html-code-view::selection {
    background: rgba(59, 130, 246, 0.24);
}

/* HTML page content area fills available space */
.canvas-markdown-preview-page[data-content-type="html"] {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 500px;
}

.canvas-markdown-preview-page[data-content-type="latex"] {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 680px;
}

.canvas-markdown-preview-page[data-content-type="mermaid"] {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 500px;
}

.canvas-html-preview-body {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: 0;
}

.canvas-mermaid-preview-pane {
    width: 100%;
    min-height: 400px;
    border-radius: 8px;
    border: 1px solid var(--canvas-md-preview-border);
    background: var(--canvas-md-card-bg);
    padding: 16px;
    overflow: auto;
}

.canvas-mermaid-diagram svg {
    display: block;
    max-width: 100%;
    height: auto;
    margin: 0 auto;
}

.canvas-mermaid-diagram.mermaid-diagram-error {
    color: #dc2626;
    font-family: "JetBrains Mono", "SF Mono", "Fira Code", monospace;
    font-size: 12px;
    white-space: pre-wrap;
}

/* When HTML type is active, track should fill height */
.canvas-markdown-preview-panel[data-content-type="html"] .canvas-markdown-preview-track,
.canvas-markdown-preview-panel[data-content-type="mermaid"] .canvas-markdown-preview-track {
    display: flex;
    flex-direction: column;
    padding: 16px;
}

/* ── Fullscreen button – only visible for HTML ────────────────────────── */
.canvas-html-fullscreen-btn {
    display: none;
}

.canvas-markdown-preview-panel[data-content-type="html"] .canvas-html-fullscreen-btn {
    display: flex;
}

/* ── Fullscreen overlay ────────────────────────── */
.canvas-html-fullscreen-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 9999;
    background: rgba(0, 0, 0, 0.85);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 32px;
    animation: fadeIn 0.2s ease;
}

.canvas-html-fullscreen-content {
    width: 100%;
    height: 100%;
    border-radius: 12px;
    overflow: hidden;
    background: #ffffff;
    position: relative;
}

.canvas-html-fullscreen-iframe {
    width: 100%;
    height: 100%;
    border: none;
}

.canvas-html-fullscreen-close {
    position: absolute;
    top: 12px;
    right: 12px;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    border: none;
    background: rgba(0, 0, 0, 0.5);
    color: #ffffff;
    cursor: pointer;
    transition: background 0.2s;
    z-index: 1;
}

@media (hover: hover) and (pointer: fine) {
    .canvas-html-fullscreen-close:hover {
        background: rgba(0, 0, 0, 0.7);
    }
}

/* ── Mobile Responsive ────────────────────────── */
@media (max-width: 900px) {
    .canvas-markdown-preview-panel {
        top: auto;
        left: 0;
        right: 0;
        bottom: 0;
        width: 100%;
        height: 85vh;
        max-width: none;
        min-width: unset;
        border-left: none;
        border-top: 1px solid var(--canvas-md-preview-border);
        border-radius: 16px 16px 0 0;
        transform: translateY(100%);
    }

    .canvas-markdown-preview-panel.visible {
        transform: translateY(0);
    }


    .canvas-markdown-preview-page {
        border-radius: 10px;
    }

    .canvas-markdown-result-widget {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
        max-width: 100%;
    }

    .canvas-markdown-result-open-btn {
        width: 100%;
        justify-content: center;
    }

    .canvas-markdown-header-action-btn {
        height: 30px;
        padding: 0 10px;
        font-size: 11px;
    }

    .canvas-csv-table {
        font-size: 12px;
        min-width: 300px;
    }

    .canvas-csv-table th,
    .canvas-csv-table td {
        padding: 8px 12px;
    }

}