/**
 * Accessibility testing utilities for WCAG compliance and a11y checks
 */
export type AccessibilityRule = {
    id: string;
    name: string;
    description: string;
    level: 'A' | 'AA' | 'AAA';
    impact: 'minor' | 'moderate' | 'serious' | 'critical';
    check: (element: unknown) => AccessibilityViolation | null;
};
export type AccessibilityViolation = {
    rule: string;
    impact: string;
    description: string;
    element?: string;
    help: string;
    helpUrl?: string;
};
export type AccessibilityResult = {
    violations: AccessibilityViolation[];
    passes: string[];
    incomplete: string[];
    inapplicable: string[];
    score: number;
};
export declare class AccessibilityTester {
    private rules;
    constructor();
    addRule(rule: AccessibilityRule): void;
    testElement(element: unknown): Promise<AccessibilityResult>;
    private checkHtmlLang;
    private checkDocumentTitle;
    private checkImageAlt;
    testHTML(html: string): Promise<AccessibilityResult>;
    private calculateScore;
    private createHtmlLangRule;
    private createImageAltRule;
    private createColorContrastRule;
    private loadDefaultRules;
}
export declare class AccessibilityReporter {
    generateReport(result: AccessibilityResult): string;
    generateJSONReport(result: AccessibilityResult): string;
}
export declare const accessibilityTester: AccessibilityTester;
export declare const accessibilityReporter: AccessibilityReporter;
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