/**
 * Safe way to check if we're in development mode
 * Works with both Node.js process.env and Vite import.meta.env
 */
export declare function isDevelopment(): boolean;
/**
 * Safe way to check if we're in production mode
 */
export declare function isProduction(): boolean;
/**
 * Get API base URL from environment variables
 * Supports both REACT_APP_ and VITE_ prefixes
 */
export declare function getApiBaseUrl(): string;
/**
 * Get any environment variable with fallback
 * Tries both VITE_ and REACT_APP_ prefixes
 */
export declare function getEnvVar(name: string, defaultValue?: string): string;