import React from "react";
export type ThemeMode = "light" | "dark" | "system";
export type GlassIntensity = "subtle" | "balanced" | "strong";
export type ContrastMode = "normal" | "high";
export type Density = "comfortable" | "compact";
export interface Settings {
    themeMode: ThemeMode;
    glassIntensity: GlassIntensity;
    contrastMode: ContrastMode;
    reducedMotion: "system" | "on" | "off";
    fontScale: 1 | 1.1 | 1.25 | 1.5;
    focusStyle: "default" | "strong";
    density: Density;
    locale: string;
    experiments: Record<string, boolean>;
}
export type SettingsPatch = Partial<Settings>;
export interface SettingsStorageAdapter {
    get: (key: string) => Promise<string | null> | string | null;
    set: (key: string, value: string) => Promise<void> | void;
    remove?: (key: string) => Promise<void> | void;
}
export interface SettingsContextValue {
    settings: Settings;
    updateSettings: (patch: SettingsPatch) => void;
    resetSettings: () => void;
    isReady: boolean;
}
declare const SettingsContext: React.Context<SettingsContextValue | undefined>;
export interface SettingsProviderProps {
    children: React.ReactNode;
    initialSettings?: SettingsPatch;
    storageAdapter?: SettingsStorageAdapter;
    onChange?: (settings: Settings) => void;
}
export declare const SettingsProvider: React.FC<SettingsProviderProps>;
/**
 * Hook to access settings.
 */
export declare function useSettings(): SettingsContextValue;
/**
 * Hook to access a single setting with proper typing.
 */
export declare function useSetting<K extends keyof Settings>(key: K): Settings[K];
export default SettingsContext;
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