export type ThemeTokenValue = string | number;
export type ThemeTokenMap = Record<string, ThemeTokenValue>;
export interface SdThemeMeta {
    name?: string;
    schemaVersion?: number;
    cssVarPrefix?: string;
}
export type SdThemeMode = 'light' | 'dark';
export interface SdThemeConfig {
    tokens?: ThemeTokenMap;
    components?: Record<string, ThemeTokenMap>;
    meta?: SdThemeMeta;
    token?: ThemeTokenMap;
    component?: Record<string, ThemeTokenMap>;
    [key: string]: unknown;
}
export interface SDThemeNormalized {
    tokens: ThemeTokenMap;
    components: Record<string, ThemeTokenMap>;
    meta: Required<Pick<SdThemeMeta, 'schemaVersion' | 'cssVarPrefix'>> & Pick<SdThemeMeta, 'name'>;
}
export declare function normalizeTokenKey(key: string): string;
export declare function normalizeTheme(theme?: SdThemeConfig): SDThemeNormalized;
export declare function resolveThemeToken(theme: SDThemeNormalized, componentName: string, tokenKey: string): ThemeTokenValue | undefined;
export declare function getThemeCSSVariables(theme: SDThemeNormalized): Record<string, string>;
export declare function applyThemeCSSVariables(target: HTMLElement, theme: SDThemeNormalized, previousKeys?: Set<string>): Set<string>;
export declare function clearThemeCSSVariables(target: HTMLElement, keys: Set<string>): void;