export interface HeatmapCell {
    row: number;
    col: number;
    value: number;
    /** Optional custom tooltip label */
    label?: string;
}
export type HeatmapPalette = 'brand' | 'green' | 'red' | 'blue' | 'orange' | 'purple' | 'diverging';
export type HeatmapSize = 'sm' | 'md' | 'lg';
export declare const HEATMAP_PALETTES: Record<HeatmapPalette, {
    low: string;
    mid?: string;
    high: string;
}>;
interface HeatmapProps {
    data?: HeatmapCell[];
    rows?: string[];
    cols?: string[];
    palette?: HeatmapPalette;
    colorLow?: string;
    colorMid?: string;
    colorHigh?: string;
    emptyColor?: string;
    /** Override scale domain */
    domainMin?: number;
    domainMax?: number;
    size?: HeatmapSize;
    cellSize?: number;
    cellGap?: number;
    cellRadius?: number;
    interactive?: boolean;
    /** Show numeric value inside each cell */
    showValues?: boolean;
    showLegend?: boolean;
    /** Rotate column labels for long headers */
    rotateColLabels?: boolean;
    unit?: string;
    decimals?: number;
    legendLabel?: string;
    ariaLabel?: string;
    class?: string;
    onhover?: (cell: HeatmapCell | null) => void;
    onselect?: (cell: HeatmapCell) => void;
}
declare const Heatmap: import("svelte").Component<HeatmapProps, {}, "">;
type Heatmap = ReturnType<typeof Heatmap>;
export default Heatmap;