import type { StyleValue } from "./style_props";
/** Under `small` (<768) an anchored overlay is a modal bottom sheet. It reads the viewport, not the
 *  trigger's box, since an overlay fills the window whatever opened it. */
export declare function useSheetPresentation(): boolean;
/** Beats floating-ui's inline `position`/`top`/`left`/`transform`, which no sheet can reach; the sheet's
 *  look stays in each component's `[data-sheet]` rules. */
export declare const SHEET_POSITIONER_STYLE: StyleValue;