interface RevealConfig {
    /** Margin around the root (viewport) for IntersectionObserver. */
    margin: string;
    /** Visibility threshold (0–1) to trigger animations. */
    threshold: number;
    /** Default animation duration (ms number or CSS time string). */
    duration: number | string;
    /** Default animation timing function. */
    ease: string;
    /** Default base animation delay in milliseconds. */
    wait: number;
    /** Default translation distance for slide animations. */
    distance: string;
    /** Default delay between staggered elements in milliseconds. */
    step: number;
    /** Scale factor for grow animations (< 1). */
    grow: number;
    /** Scale factor for shrink animations (> 1). */
    shrink: number;
}
interface RevealOptions {
    /** Configuration options for the animation system. */
    config?: Partial<RevealConfig>;
}
/**
 * @class
 * @description Initializes viewport entry animations.
 *
 * @example
 * const reveal = new Reveal();
 *
 * @example
 * const reveal = new Reveal({
 *   config: {
 *     duration: 400,
 *     ease: "ease-in-out",
 *     threshold: 0.3,
 *     margin: "100px",
 *     step: 40,
 *   },
 * });
 */
declare class Reveal {
    #private;
    /**
     * @description Prevents automatic initialization on DOM ready.
     * Assigned below (browser environments only).
     */
    static disableAutoInit: () => void;
    /**
     * @description Returns the auto-initialized Reveal instance, if any.
     * Assigned below (browser environments only).
     */
    static getAutoInstance: () => Reveal | null;
    static get defaultConfig(): RevealConfig;
    config: RevealConfig;
    /**
     * @description Creates a new Reveal instance.
     *
     * @param options - Configuration options.
     */
    constructor(options?: RevealOptions);
    /**
     * @description Initializes the animation system by setting global CSS variables
     * and configuring all animated elements.
     */
    init(): void;
    /**
     * @description Reinitializes the animation system after dynamically adding elements.
     *
     * Disconnects old observers and rescans the document.
     *
     * @example
     * container.innerHTML = newContent;
     * reveal.refresh();
     */
    refresh(): void;
}
export { Reveal };
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