import { LitElement } from 'lit';
export interface ValidationRule {
    type: 'required' | 'email' | 'url' | 'pattern' | 'minlength' | 'maxlength' | 'min' | 'max' | 'custom';
    message: string;
    value?: string | number;
    pattern?: string;
    minlength?: number;
    maxlength?: number;
    min?: number;
    max?: number;
    validator?: (value: string) => boolean;
}
export interface ValidationResult {
    isValid: boolean;
    errors: string[];
    warnings: string[];
}
/**
 * USA Validation Web Component
 *
 * A simple, accessible USWDS validation implementation as a custom element.
 * Provides real-time validation feedback with customizable rules and messages.
 * Uses official USWDS classes and styling with minimal custom code.
 *
 * @element usa-validation
 * @fires validation-change - Dispatched when validation status changes
 *
 * @see README.mdx - Complete API documentation, usage examples, and implementation notes
 * @see CHANGELOG.mdx - Component version history and breaking changes
 * @see TESTING.mdx - Testing documentation and coverage reports
 *
 * @uswds-css-reference https://github.com/uswds/uswds/tree/develop/packages/usa-validation/src/styles/_usa-validation.scss
 * @uswds-docs https://designsystem.digital.gov/components/validation/
 * @uswds-guidance https://designsystem.digital.gov/components/validation/#guidance
 * @uswds-accessibility https://designsystem.digital.gov/components/validation/#accessibility
 */
export declare class USAValidation extends LitElement {
    static styles: import('lit').CSSResult;
    value: string;
    label: string;
    hint: string;
    name: string;
    inputType: 'input' | 'textarea' | 'select';
    type: string;
    options: {
        value: string;
        text: string;
    }[];
    rows: number;
    placeholder: string;
    disabled: boolean;
    readonly: boolean;
    rules: ValidationRule[];
    errors: string[];
    validateOnInput: boolean;
    validateOnBlur: boolean;
    showSuccessState: boolean;
    message: string;
    valid: boolean;
    private _validationResult;
    private _hasBeenValidated;
    private _showValidation;
    protected createRenderRoot(): HTMLElement;
    private validateValue;
    private handleInput;
    private handleBlur;
    private performValidation;
    private getFormGroupClasses;
    private getInputClasses;
    private renderSelectOption;
    private renderInput;
    private getAriaDescribedBy;
    validate(): ValidationResult;
    clearValidation(): void;
    addRule(rule: ValidationRule): void;
    removeRule(ruleType: string): void;
    isValid(): boolean;
    getErrors(): string[];
    focus(): void;
    reset(): void;
    connectedCallback(): void;
    disconnectedCallback(): void;
    private renderRequiredIndicator;
    private renderHint;
    private renderErrorMessage;
    private renderSuccessState;
    private renderLiveRegion;
    render(): import('lit-html').TemplateResult<1>;
}
//# sourceMappingURL=usa-validation.d.ts.map