/**
 * Detects the Tailwind CSS version from package.json
 * @param projectRoot The root directory of the project
 * @returns The Tailwind CSS version or null if not found
 */
export declare function detectTailwindVersion(projectRoot: string): string | null;
/**
 * Checks if the given version is Tailwind v4 or later
 */
export declare function isV4OrLater(version: string | null): boolean;
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