/**
 * Standard chart dimensions used by all dashboard primitives.
 * Three sizes only — enforced via the `<ChartContainer>` `height` prop.
 *
 * Tokens map to:
 *  - sm (280px) : single-metric sparklines, compact line/bar charts.
 *  - md (320px) : standard line/bar/area charts and primary trend visualisations.
 *  - lg (400px) : pie/donut and drill-down charts that need radial space.
 */
export declare const CHART_HEIGHTS: {
    readonly sm: 280;
    readonly md: 320;
    readonly lg: 400;
};
export type ChartHeight = keyof typeof CHART_HEIGHTS;
/**
 * Standard Recharts cartesian chart margin. Kept centralised so all line/bar/area
 * charts share consistent gutters for axis labels.
 */
export declare const CHART_MARGIN: {
    readonly top: 8;
    readonly right: 24;
    readonly left: 8;
    readonly bottom: 8;
};
/**
 * Pie/donut radii. The `outerRadius` matches the active-shape ring buffer in
 * `renderActiveShape`.
 */
export declare const PIE_RADII: {
    readonly inner: 70;
    readonly outer: 110;
    readonly activeBufferInner: 6;
    readonly activeBufferOuter: 10;
};
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