import type { StyleValue } from "./style_props";
/**
 * An anchored overlay's presentation is not the caller's choice: under `small`
 * (<768) it is a modal BOTTOM SHEET, above it an anchored popup. The answer
 * reads the VIEWPORT rather than the box the trigger sits in, because an overlay
 * fills the window whatever opened it — so a narrow desktop window gets the
 * sheet too.
 */
export declare function useSheetPresentation(): boolean;
/**
 * Beats Base UI's anchored placement, which floating-ui writes as INLINE
 * `position` / `top` / `left` / `transform` on the positioner and no stylesheet
 * can reach. What a sheet LOOKS like — its corner, ground, inset and height —
 * stays in each component's own sheet under `[data-sheet]`.
 */
export declare const SHEET_POSITIONER_STYLE: StyleValue;