import { LitElement } from 'lit';

/**
 * Breadcrumb item interface
 */
export interface BreadcrumbItem {
    /** Display text for the breadcrumb */
    label: string;
    /** URL for navigation (optional for current page) */
    href?: string;
    /** Marks the current page */
    current?: boolean;
}
export interface BreadcrumbClickEventDetail {
    item: BreadcrumbItem;
    index: number;
    event: MouseEvent;
}
export type BreadcrumbClickEvent = CustomEvent<BreadcrumbClickEventDetail>;
export interface BreadcrumbProps {
    items?: BreadcrumbItem[];
    type?: 'default' | 'slash' | 'bullet' | 'arrow';
    primary?: boolean;
    ariaLabel?: string;
    onBreadcrumbClick?: (event: BreadcrumbClickEvent) => void;
}
/**
 * AgBreadcrumb - Accessible breadcrumb navigation component
 *
 * A semantic navigation element implementing the WAI-ARIA Breadcrumb pattern
 * for showing hierarchical page location with comprehensive accessibility support.
 *
 * Features:
 * - WAI-ARIA Breadcrumb pattern compliance with proper nav landmark
 * - Semantic ordered list structure
 * - Current page indication via aria-current="page"
 * - Multiple separator styles (default, slash, bullet, arrow)
 * - Minimalist styling via design tokens
 * - Click event handling for navigation
 * - Form integration support
 */
export declare class AgBreadcrumb extends LitElement implements BreadcrumbProps {
    static styles: import('lit').CSSResult;
    /**
     * Array of breadcrumb items to display
     */
    items: BreadcrumbItem[];
    /**
     * Separator style type
     */
    type: 'default' | 'slash' | 'bullet' | 'arrow';
    /**
     * Primary link styling - uses blue --ag-primary color (opt-in)
     */
    primary: boolean;
    /**
     * Custom aria-label for the navigation landmark
     */
    ariaLabel: string;
    /**
     * Callback for breadcrumb click events
     */
    onBreadcrumbClick?: (event: BreadcrumbClickEvent) => void;
    constructor();
    private _handleItemClick;
    private _renderBreadcrumbItem;
    render(): import('lit').TemplateResult<1>;
}
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