import { SelectOptions } from './select.types';
/**
 * Headless single-select dropdown. Wires ARIA `listbox`/`option`, roving
 * `aria-activedescendant`, full keyboard navigation and selection to existing
 * markup; it never applies visual styles.
 *
 * Markup:
 * ```html
 * <div data-c42-select>
 *   <button data-c42-select-trigger>
 *     <span data-c42-select-value>Choose…</span>
 *   </button>
 *   <div data-c42-select-listbox>
 *     <div data-c42-select-option data-value="a">A</div>
 *     <div data-c42-select-option data-value="b">B</div>
 *   </div>
 * </div>
 * ```
 */
export declare class Select {
    private readonly root;
    private readonly trigger;
    private readonly valueEl;
    private readonly listbox;
    private readonly placeholder;
    private readonly options;
    private selected;
    private opened;
    private activeIndex;
    private cleanups;
    constructor(root: HTMLElement, options?: SelectOptions);
    private valueOf;
    private labelOf;
    private isDisabled;
    private init;
    private get enabledOptions();
    private onTriggerKeydown;
    private onKeydown;
    private onListboxClick;
    private updateActive;
    private selectOption;
    private applySelection;
    private renderSelection;
    private syncActiveToSelection;
    private onOutside;
    private emit;
    /** Open the listbox. No-op if already open. */
    open(): void;
    /** Close the listbox. No-op if already closed. */
    close(): void;
    /** Toggle the listbox open/closed. */
    toggle(): void;
    get value(): string | null;
    /** Programmatically select a value. No-op if unknown or disabled. */
    setValue(value: string): void;
    /** Subscribe to a DOM event on the root element. Returns an unsubscribe fn. */
    on<E extends Event = Event>(event: string, handler: (event: E) => void): () => void;
    destroy(): void;
}