import { Effect } from 'effect';
/**
 * Locks page scroll by setting `overflow: hidden` on the document element.
 * Compensates for scrollbar width with padding to prevent layout shift.
 * On iOS Safari, intercepts `touchmove` events to prevent page scroll
 * while allowing scrolling within overflow containers.
 * Uses reference counting so nested locks are safe. The page only unlocks
 * when every lock has been released.
 *
 * @example
 * ```typescript
 * Dom.lockScroll
 * ```
 */
export declare const lockScroll: Effect.Effect<void>;
/**
 * Releases one scroll lock. When the last lock is released, restores the
 * original `overflow` and `padding-right` on the document element.
 * On iOS Safari, removes the `touchmove` listener.
 *
 * @example
 * ```typescript
 * Dom.unlockScroll
 * ```
 */
export declare const unlockScroll: Effect.Effect<void>;
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