import { LitElement, PropertyValues } from 'lit';
import '../Icon/Icon';
/**
 * CTT Accordion Web Component
 *
 * An expandable/collapsible accordion component for the CTT Design System.
 * Supports slotted content for title, description, and main content.
 *
 * @element ctt-accordion
 *
 * @fires toggle - Dispatched when the accordion is toggled
 *
 * @slot title - Accordion title content
 * @slot description - Optional description content (only shown if showDescription is true)
 * @slot content - Main expandable content
 *
 * @csspart header - The header container
 * @csspart title - The title container
 * @csspart description - The description container
 * @csspart arrow - The toggle arrow icon
 * @csspart content - The expandable content container
 */
declare global {
    interface HTMLElementTagNameMap {
        'ctt-accordion': CttAccordion;
    }
}
export declare class CttAccordion extends LitElement {
    static styles: import("lit").CSSResult[];
    /**
     * The accordion title text
     */
    title: string;
    /**
     * Optional description text
     */
    description: string;
    /**
     * Whether to show the description
     */
    showDescription: boolean | undefined;
    /**
     * Whether the accordion is expanded
     */
    open: boolean;
    /**
     * ARIA label for the accordion header
     */
    ariaLabel: string;
    private _contentElement;
    private _contentWrapper;
    constructor();
    /**
     * Toggles the accordion open/closed state
     */
    toggle(): void;
    private _handleHeaderClick;
    private _handleKeyDown;
    private _updateContentHeight;
    updated(changedProperties: PropertyValues<this>): void;
    firstUpdated(): void;
    render(): import("lit-html").TemplateResult<1>;
}