/**
 * AreaChart theme configuration
 * Uses production-ready CSS variables from global.scss
 *
 * Note: Color cycling and gradients are handled inline in component
 * This theme focuses on container, SVG, and interactive styling
 */
export interface AreaChartTheme {
    containerStyle: string;
    svgStyle: string;
    areaGroupStyle: string;
    emptyStateStyle: string;
}
export declare const areaChartTheme: AreaChartTheme;
/**
 * Get series color class for stroke and fill
 * Uses semantic color CSS variables in production-ready format
 */
export declare const getSeriesColorClass: (index: number) => string;
/**
 * Get fill color for SVG gradients
 * Returns CSS variable value directly for stopColor attribute
 */
export declare const getSeriesFillColor: (index: number) => string;
