import * as i0 from "@angular/core";
export declare class PghDarkModeService {
    private readonly isEnabledStorageKey;
    private readonly htmlElement;
    private localStorageFactory;
    isDarkModeEnabled: boolean;
    constructor();
    private setupDarkModeToggle;
    private getUserDevicePreference;
    private getDarkModeEnabled;
    toggleDarkMode(): void;
    private setDarkMode;
    private storeDarkModeInStorage;
    private enableDarkTheme;
    static ɵfac: i0.ɵɵFactoryDeclaration<PghDarkModeService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<PghDarkModeService>;
}