type ReducedMotionListener = (reduced: boolean) => void;
/** Current effective preference (override, else OS). False when no DOM. */
export declare function prefersReducedMotion(): boolean;
/**
 * App-level override of the OS preference - in-app accessibility toggles.
 * `null` returns control to the OS media query.
 */
export declare function setReducedMotionOverride(value: boolean | null): void;
/** Notifies on effective preference changes. Returns an unsubscribe. */
export declare function onReducedMotionChange(listener: ReducedMotionListener): () => void;
/** Test-only: clears the cached media query state. Not part of the public API. */
export declare function __resetReducedMotion(): void;
export {};
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