import { type RefObject } from 'react';
export interface HoverGuideProps {
    /**
     * The element the guide measures against — typically the lane-area
     * wrapper. Pointer moves inside this element reveal the guide; leaving
     * it hides both line and tooltip.
     */
    areaRef: RefObject<HTMLElement | null>;
}
/**
 * Amber hover guide: vertical line + time readout that tracks the mouse
 * while inside the lane area. Separate from the (red) playhead so at any
 * moment you can see both "where I'm considering seeking to" and "where
 * the clock actually is".
 *
 * Driven imperatively — no React state per mousemove — to keep 60fps
 * hover smooth even over large lane grids.
 */
export declare function HoverGuide({ areaRef }: HoverGuideProps): import("react/jsx-runtime").JSX.Element;
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