.canvas-spreadsheet-editor {
    --spreadsheet-grid-bg: var(--background);
    --spreadsheet-panel-bg: var(--surface-muted, var(--background));
    --spreadsheet-line: color-mix(in srgb, var(--border-color) 58%, transparent);
    --spreadsheet-border: var(--border-color);
    --spreadsheet-text: var(--text-color);
    --spreadsheet-muted: var(--text-color-secondary);
    --spreadsheet-selection: color-mix(in srgb, var(--accent-color) 10%, transparent);
    --spreadsheet-search-match: color-mix(in srgb, var(--chat-warning-color) 30%, transparent);
    display: flex;
    flex: 1;
    min-width: 0;
    min-height: 0;
    flex-direction: column;
    overflow: hidden;
    color: var(--spreadsheet-text);
    background: var(--background);
    font-size: 13px;
}

.canvas-markdown-preview-panel[data-content-type="csv"] .canvas-markdown-preview-track,
.canvas-markdown-preview-panel[data-content-type="tsv"] .canvas-markdown-preview-track,
.canvas-markdown-preview-panel[data-content-type="xlsx"] .canvas-markdown-preview-track,
.canvas-markdown-preview-panel[data-content-type="xls"] .canvas-markdown-preview-track {
    display: flex;
    flex-direction: column;
    padding: 0;
    overflow: hidden;
}

.canvas-spreadsheet-host {
    display: flex;
    flex: 1;
    min-width: 0;
    min-height: 0;
}

/* Component display declarations otherwise override the browser's default
   `[hidden]` rule. Keep unavailable sheet and footer controls truly absent. */
.canvas-spreadsheet-tabs-bar[hidden],
.canvas-spreadsheet-sheet-controls[hidden],
.canvas-spreadsheet-tabs-bar > [hidden],
.canvas-spreadsheet-sheet-controls > [hidden] {
    display: none;
}

.canvas-spreadsheet-editor button,
.canvas-spreadsheet-editor input {
    font: inherit;
    color: inherit;
}

.canvas-spreadsheet-toolbar,
.canvas-spreadsheet-formula-bar,
.canvas-spreadsheet-tabs-bar,
.canvas-spreadsheet-status {
    display: flex;
    flex: 0 0 auto;
    align-items: center;
}

.canvas-spreadsheet-toolbar {
    min-height: 44px;
    gap: 5px;
    padding: 6px 12px;
    border-bottom: 1px solid var(--spreadsheet-border);
    background: var(--background);
}

.canvas-spreadsheet-icon-btn,
.canvas-spreadsheet-mini-btn,
.canvas-spreadsheet-tab,
.canvas-spreadsheet-column-header,
.canvas-spreadsheet-row-number,
.canvas-spreadsheet-corner {
    border: 0;
    background: transparent;
    cursor: pointer;
}

.canvas-spreadsheet-icon-btn {
    width: 31px;
    height: 31px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
}

.canvas-spreadsheet-icon-btn svg {
    width: 17px;
    height: 17px;
}

.canvas-spreadsheet-icon-btn:disabled,
.canvas-spreadsheet-mini-btn:disabled {
    opacity: 0.35;
    cursor: default;
}

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

.canvas-spreadsheet-toolbar-spacer {
    flex: 1;
}

.canvas-spreadsheet-search {
    height: 31px;
    min-width: 190px;
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 0 9px;
    border-radius: 8px;
    background: var(--surface-control, var(--hover));
}

.canvas-spreadsheet-search > span:first-child,
.canvas-spreadsheet-search > span:first-child svg {
    width: 15px;
    height: 15px;
    color: var(--spreadsheet-muted);
}

.canvas-spreadsheet-search input {
    min-width: 80px;
    flex: 1;
    border: 0;
    outline: none;
    background: transparent;
}

.canvas-spreadsheet-search-count {
    color: var(--spreadsheet-muted);
    font-size: 11px;
    font-variant-numeric: tabular-nums;
    white-space: nowrap;
}

.canvas-spreadsheet-compatibility {
    max-width: min(45%, 440px);
    overflow: hidden;
    padding: 5px 9px;
    border: 1px solid color-mix(in srgb, var(--chat-warning-color) 32%, transparent);
    border-radius: 999px;
    color: var(--chat-warning-color);
    background: color-mix(in srgb, var(--chat-warning-color) 9%, transparent);
    cursor: help;
    font-size: 11px;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.canvas-spreadsheet-formula-bar {
    min-height: 36px;
    border-bottom: 1px solid var(--spreadsheet-border);
    background: var(--spreadsheet-grid-bg);
}

.canvas-spreadsheet-name-box {
    width: 76px;
    flex: 0 0 76px;
    align-self: stretch;
    display: flex;
    align-items: center;
    justify-content: center;
    border-inline-end: 1px solid var(--spreadsheet-border);
    color: var(--spreadsheet-muted);
    font-size: 12px;
    font-variant-numeric: tabular-nums;
}

.canvas-spreadsheet-fx {
    padding: 0 10px;
    color: var(--spreadsheet-muted);
    font-family: Georgia, serif;
    font-size: 14px;
    font-style: italic;
}

.canvas-spreadsheet-formula-input {
    min-width: 0;
    flex: 1;
    align-self: stretch;
    padding: 0 10px 0 0;
    border: 0;
    outline: none;
    background: transparent;
    font-family: var(--font-monospace, ui-monospace, SFMono-Regular, Menlo, monospace);
    font-size: 12px;
}

.canvas-spreadsheet-formula-input:focus-visible {
    box-shadow: inset 0 -2px 0 var(--accent-color);
}

.canvas-spreadsheet-grid-wrap {
    flex: 1;
    min-height: 0;
    padding: 10px 12px 0;
}

.canvas-spreadsheet-viewport {
    position: relative;
    width: 100%;
    height: 100%;
    overflow: auto;
    border: 1px solid var(--spreadsheet-border);
    border-radius: 11px;
    outline: none;
    background: var(--spreadsheet-grid-bg);
    cursor: cell;
    user-select: none;
    scrollbar-color: var(--spreadsheet-border) transparent;
    scrollbar-width: thin;
}

.canvas-spreadsheet-viewport:focus-visible {
    border-color: color-mix(in srgb, var(--accent-color) 65%, var(--spreadsheet-border));
    box-shadow: 0 0 0 2px color-mix(in srgb, var(--accent-color) 14%, transparent);
}

.canvas-spreadsheet-canvas {
    position: relative;
    min-width: 100%;
    min-height: 100%;
}

.canvas-spreadsheet-header {
    position: sticky;
    top: 0;
    z-index: 5;
    height: 32px;
    background: var(--spreadsheet-panel-bg);
}

.canvas-spreadsheet-corner {
    position: sticky;
    inset-inline-start: 0;
    z-index: 7;
    width: 48px;
    height: 32px;
    border-inline-end: 1px solid var(--spreadsheet-border);
    border-bottom: 1px solid var(--spreadsheet-border);
    background: var(--spreadsheet-panel-bg);
}

.canvas-spreadsheet-column-header {
    position: absolute;
    top: 0;
    height: 32px;
    overflow: hidden;
    border-inline-end: 1px solid var(--spreadsheet-line);
    border-bottom: 1px solid var(--spreadsheet-border);
    color: var(--spreadsheet-muted);
    background: var(--spreadsheet-panel-bg);
    font-size: 10.5px;
    font-weight: 600;
    letter-spacing: 0.04em;
}

.canvas-spreadsheet-column-resize {
    position: absolute;
    inset-block: 0;
    inset-inline-end: -4px;
    z-index: 2;
    width: 8px;
    cursor: col-resize;
}

body.is-resizing-spreadsheet-column,
body.is-resizing-spreadsheet-column * {
    cursor: col-resize !important;
    user-select: none !important;
}

.canvas-spreadsheet-column-header.is-selected {
    color: var(--spreadsheet-text);
    background: var(--spreadsheet-selection);
    box-shadow: inset 0 -2px 0 var(--accent-color);
}

.canvas-spreadsheet-row {
    position: absolute;
    inset-inline-start: 0;
    height: 30px;
}

.canvas-spreadsheet-row-number {
    position: sticky;
    inset-inline-start: 0;
    z-index: 3;
    width: 48px;
    height: 30px;
    border-inline-end: 1px solid var(--spreadsheet-border);
    border-bottom: 1px solid var(--spreadsheet-line);
    color: var(--spreadsheet-muted);
    background: var(--spreadsheet-panel-bg);
    font-size: 10.5px;
    font-variant-numeric: tabular-nums;
}

.canvas-spreadsheet-row-number.is-selected {
    color: var(--spreadsheet-text);
    background: var(--spreadsheet-selection);
    box-shadow: inset -2px 0 0 var(--accent-color);
}

.canvas-spreadsheet-cell {
    position: absolute;
    top: 0;
    height: 30px;
    overflow: hidden;
    padding: 0 8px;
    border-inline-end: 1px solid var(--spreadsheet-line);
    border-bottom: 1px solid var(--spreadsheet-line);
    line-height: 29px;
    text-overflow: ellipsis;
    white-space: pre;
    font-size: 12.5px;
    font-variant-numeric: tabular-nums;
}

.canvas-spreadsheet-cell.is-number {
    text-align: end;
}

.canvas-spreadsheet-cell.is-match {
    background: var(--spreadsheet-search-match);
}

.canvas-spreadsheet-selection-layer {
    position: absolute;
    inset: 0;
    z-index: 2;
    pointer-events: none;
}

.canvas-spreadsheet-selection {
    position: absolute;
    border: 2px solid var(--accent-color);
    border-radius: 2px;
    background: var(--spreadsheet-selection);
}

.canvas-spreadsheet-cell-editor {
    position: absolute;
    z-index: 8;
    min-width: 0;
    padding: 0 7px;
    border: 2px solid var(--accent-color);
    border-radius: 2px;
    outline: none;
    color: var(--spreadsheet-text);
    background: var(--spreadsheet-grid-bg);
    box-shadow: var(--surface-elevated-shadow);
}

.canvas-spreadsheet-tabs-bar {
    min-height: 39px;
    gap: 3px;
    padding: 3px 12px;
    border-top: 1px solid var(--spreadsheet-border);
}

.canvas-spreadsheet-sheet-controls {
    min-width: 0;
    display: flex;
    flex: 0 1 auto;
    align-items: center;
    gap: 3px;
}

.canvas-spreadsheet-tabs {
    min-width: 0;
    display: flex;
    flex: 0 1 auto;
    gap: 2px;
    overflow-x: auto;
    scrollbar-width: none;
}

.canvas-spreadsheet-tabs::-webkit-scrollbar {
    display: none;
}

.canvas-spreadsheet-tab,
.canvas-spreadsheet-mini-btn {
    min-height: 29px;
    padding: 0 10px;
    border-radius: 7px;
    color: var(--spreadsheet-muted);
    white-space: nowrap;
    font-size: 12px;
}

.canvas-spreadsheet-tab.is-active {
    color: var(--spreadsheet-text);
    background: var(--bg-hover);
    font-weight: 600;
}

.canvas-spreadsheet-sheet-controls > [data-action="add-sheet"] {
    width: 29px;
    padding: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.canvas-spreadsheet-sheet-controls > [data-action="add-sheet"] svg {
    width: 15px;
    height: 15px;
}

.canvas-spreadsheet-status {
    min-height: 28px;
    gap: 7px;
    padding: 0 17px 4px;
    color: var(--spreadsheet-muted);
    font-size: 11.5px;
    font-variant-numeric: tabular-nums;
}

@media (hover: hover) and (pointer: fine) {
    .canvas-spreadsheet-icon-btn:not(:disabled):hover,
    .canvas-spreadsheet-mini-btn:not(:disabled):hover,
    .canvas-spreadsheet-tab:hover,
    .canvas-spreadsheet-column-header:hover,
    .canvas-spreadsheet-row-number:hover,
    .canvas-spreadsheet-corner:hover {
        color: var(--spreadsheet-text);
        background: var(--bg-hover);
    }

    .canvas-spreadsheet-row:hover .canvas-spreadsheet-cell {
        background-color: color-mix(in srgb, var(--bg-hover) 55%, transparent);
    }

    .canvas-spreadsheet-row:hover .canvas-spreadsheet-cell.is-match {
        background: var(--spreadsheet-search-match);
    }
}

@container canvas-preview (max-width: 650px) {
    .canvas-spreadsheet-toolbar {
        flex-wrap: wrap;
    }

    .canvas-spreadsheet-search {
        flex: 1 1 170px;
    }

    .canvas-spreadsheet-compatibility {
        order: 5;
        max-width: 100%;
        flex-basis: 100%;
    }

    .canvas-spreadsheet-status [data-role="statistics"] {
        display: none;
    }
}

@media (prefers-reduced-motion: reduce) {
    .canvas-spreadsheet-editor *,
    .canvas-spreadsheet-editor *::before,
    .canvas-spreadsheet-editor *::after {
        scroll-behavior: auto !important;
        transition-duration: 0.01ms !important;
    }
}