import type { BubbleOffset } from "../../../utils/globals";
export declare const DEFAULT_BUBBLE_OFFSET: {
    readonly bottom: 20;
    readonly right: 20;
    readonly left: 20;
};
export interface ResolvedBubbleOffset {
    bottom: number;
    right: number;
    left: number;
}
/** Merge partial offset with SDK defaults (20px on each edge). */
export declare function resolveBubbleOffset(partial?: BubbleOffset | null): ResolvedBubbleOffset;
/** Set CSS custom properties consumed by shadow-styles on the chat host. */
export declare function applyBubbleOffsetStyles(host: HTMLElement, offset: ResolvedBubbleOffset): void;
export type WidgetPosition = "bottom-right" | "bottom-left";
/** Apply fixed positioning to the pre-load lightweight bubble element. */
export declare function applyLightweightBubblePosition(el: HTMLElement, position: WidgetPosition, offset: ResolvedBubbleOffset): void;