/**
 * tilt-effect.ts - Pointer-driven 3D tilt effect
 *
 * Attaches pointer listeners to an element and sets CSS custom properties:
 *   --rot-x, --rot-y   (rotation in deg)
 *   --tilt-x, --tilt-y  (normalized -1..1 for parallax offsets)
 *   --rot-perspective   (perspective value in px)
 *
 * Does NOT set style.transform — the consuming CSS composes the transform
 * from these variables so tilt never conflicts with scale or other transforms.
 *
 * Skips touch pointers. Respects prefers-reduced-motion.
 */
export interface TiltEffectOptions {
    /** Maximum tilt angle in degrees (default 4) */
    maxDegrees?: number;
    /** CSS perspective value in px (default 800) */
    perspective?: number;
}
export interface TiltEffectHandle {
    destroy(): void;
}
export declare function attachTiltEffect(element: HTMLElement, options?: TiltEffectOptions): TiltEffectHandle;
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