import type { ChatgramConfig, WidgetState } from '../core/types';
import { EventEmitter } from '../core/events';
/**
 * The Modal class manages the entire widget UI lifecycle.
 *
 * Architecture:
 * - Uses Shadow DOM for CSS isolation
 * - Focus trap keeps Tab cycling within modal
 * - Scroll lock prevents body scrolling without layout shift
 * - Honeypot field catches bots
 * - Rate limiter prevents spam
 * - Anti-bot timing check
 * - Full ARIA attributes for screen readers
 * - Keyboard navigation (Escape to close, Tab to navigate, Enter to select)
 */
export declare class Modal {
    private config;
    private events;
    private rateLimiter;
    private hostEl;
    private shadow;
    private overlay;
    private modalEl;
    private bodyContainer;
    private isOpen;
    private state;
    private selectedCategory;
    private mountTime;
    private instanceId;
    private destroyFocusTrap;
    private boundEscapeHandler;
    private emailInput;
    private nameInput;
    private subjectInput;
    private messageInput;
    private honeypotInput;
    private charCountText;
    private charCountFill;
    private submitBtn;
    private categoryBtns;
    constructor(config: ChatgramConfig, events: EventEmitter);
    open(): void;
    close(): void;
    destroy(): void;
    updateConfig(newConfig: ChatgramConfig): void;
    updateTheme(theme: ChatgramConfig['theme']): void;
    getState(): WidgetState;
    isVisible(): boolean;
    private mount;
    private applyTheme;
    private buildHeader;
    private buildFormView;
    private buildField;
    private selectCategory;
    private updateCharCount;
    private validate;
    private showFieldError;
    private showTextareaError;
    private clearFieldError;
    private setState;
    private showStateView;
    private handleSubmit;
}