import type { CallspecUiTheme } from '../types';
export type AppliedUiTheme = {
    cssVars: Record<string, string>;
    fontUrls: string[];
};
/** Pure: map branding theme fields to CSS custom properties (no DOM). */
export declare function applyUiTheme(theme: CallspecUiTheme | undefined): AppliedUiTheme;
/** Apply theme CSS vars and inject webfont `<link>` tags on a document. */
export declare function applyUiThemeToDocument(theme: CallspecUiTheme | undefined, doc?: Document): AppliedUiTheme;