import type { Page } from 'playwright';
export declare const MOTION_SCENARIO: {
    version: number;
    states: string[];
    triggerViewport: number;
    duringMs: number;
    settleMs: number;
    progress: number[];
    modes: string[];
    scrolling: string;
    expressive: string;
};
export declare const MOTION_SCENARIO_HASH: string;
export type TemporalMotionEvidence = {
    path: string;
    width: number;
    motion: 'normal' | 'reduce';
    scenarioHash: string;
    engineAssetHash: string;
    targets: {
        id: string;
        effect: string;
        samples: {
            state: string;
            opacity: number;
            transform: string;
            progress: number | null;
            canonical?: string;
            visual?: string | null;
            stroke?: string;
            screenshot: string;
            screenshotHash: string;
        }[];
    }[];
    failures: string[];
};
/** Before static sweep/focus checks consume entrances, capture the actual sequence. */
export declare function observeMotion(page: Page, root: string, route: string, width: number, mode: 'normal' | 'reduce', directory: string): Promise<TemporalMotionEvidence>;
/** Pure evidence checks used by current-source browser acceptance. */
export declare function temporalMotionFailures(root: string, evidence: TemporalMotionEvidence, expectedAssetHash: string): string[];