export interface CutoutRect {
    x: number;
    y: number;
    width: number;
    height: number;
}
export interface CutoutState {
    rect: CutoutRect;
    vw: number;
    vh: number;
}
/** Build an SVG path string with an evenodd hole for the cutout overlay.
 *  The outer rect covers the full viewport; the inner rounded rect defines the hole region when rendered with fill-rule="evenodd". */
export declare function buildCutoutPath(vw: number, vh: number, rect: CutoutRect, padding: number, radius: number): string;
/** Track the bounding rect of the focused tour element and viewport size via DOM query + polling/events. */
export declare function useCutoutRect(active: boolean, stepId: string | undefined): CutoutState | null;