import type { VendoTheme } from "../../core/apps/index.js";
import { type ReactNode } from "react";
/** Inject the chrome stylesheet once. Exported for surfaces that portal OUT of
    a ChromeRoot's DOM subtree (MorphToast, VendoToasts) and hand-roll their own
    `.vendo-root` theme boundary on document.body. */
export declare function ensureChromeStyles(): void;
export declare function useChromeRootPresence(): boolean;
/**
 * The theme in force at this point in the REACT tree: the nearest chrome
 * boundary's resolved theme, else the provider's.
 *
 * This is what anything portalling to `document.body` reads. Those surfaces
 * hand-roll their own `.vendo-root` boundary (the comment above
 * {@link ensureChromeStyles}), so a DOM-cascade inheritance never reaches
 * them — but they are still rendered from inside their spawning surface's
 * React subtree, and that surface may carry its own `theme`.
 */
export declare function useChromeTheme(): VendoTheme;
/** A surface's own partial theme, merged over the provider's resolved theme —
    the same merge `VendoProvider` applies over `defaultVendoTheme`. With no
    provider above, the provider value IS `defaultVendoTheme`, so a bare surface
    merges over the defaults. */
export declare function useSurfaceTheme(theme?: Partial<VendoTheme>): VendoTheme;
/** 08-ui §4, §6 — one shared theme/style/notice boundary per chrome surface. */
export declare function ChromeRoot({ children, className, 
/** This surface's own brand tokens, merged over the provider's. */
theme, 
/** Opt IN to the developer policy banner (dev/console surfaces only). */
automaticPolicyNotice, }: {
    children: ReactNode;
    className?: string;
    theme?: Partial<VendoTheme>;
    automaticPolicyNotice?: boolean;
}): import("react").JSX.Element;