import { DrawerOptions } from './drawer.types';
/**
 * Headless drawer controller. A slide-in panel anchored to an edge. Manages
 * open state, focus trapping, scroll locking, Escape/overlay dismissal, ARIA
 * wiring and focus restoration. Mirrors the modal behaviour but reflects its
 * anchored edge on `data-side`.
 *
 * Markup:
 * ```html
 * <div data-c42-drawer>
 *   <div data-c42-drawer-overlay></div>
 *   <div data-c42-drawer-content>
 *     <button data-c42-drawer-close>Close</button>
 *     ...
 *   </div>
 * </div>
 * ```
 */
export declare class Drawer {
    private readonly root;
    private readonly content;
    private readonly overlay;
    private readonly side;
    private readonly closeOnOverlayClick;
    private readonly closeOnEscape;
    private readonly lockScroll;
    private readonly focusTrap;
    private opened;
    private previouslyFocused;
    private cleanups;
    constructor(root: HTMLElement, options?: DrawerOptions);
    private init;
    private readonly onKeydown;
    open(): void;
    close(): void;
    toggle(): void;
    get isOpen(): boolean;
    on<E extends Event = Event>(event: string, handler: (event: E) => void): () => void;
    destroy(): void;
}