import { DefaultTheme } from 'styled-components';
/**
 * The UI font stack used across the culture apps, read from the active OS
 * theme (#213 B1). An interpolation function so every `${UI_FONT_STACK}`
 * inside a styled template keeps working unchanged.
 */
export declare const UI_FONT_STACK: ({ theme }: {
    theme: DefaultTheme;
}) => string;
/**
 * Base window shell: fills its window, stacks children vertically, applies the
 * UI font, disables selection and clips overflow. Compose with `styled()` to
 * add the per-app background/colour.
 */
export declare const CultureAppShell: import('styled-components/dist/types').IStyledComponentBase<"web", import('styled-components').FastOmit<import('react').DetailedHTMLProps<import('react').HTMLAttributes<HTMLDivElement>, HTMLDivElement>, never>> & string;