/** Parse a CSS <time> value (or motion shorthand's first token) to milliseconds. */
export declare function parseCssTimeMs(value: string, fallback: number): number;
/**
 * Resolve a duration to milliseconds for JS timers aligned with CSS motion tokens.
 * Accepts numbers (ms), raw times (`200ms`, `0.75s`), or `var(--effect-*)` references.
 */
export declare function resolveCssTimeMs(value: number | string | undefined, fallbackToken: string): number;
/** Whether the user has requested reduced non-essential motion. */
export declare function prefersReducedMotion(): boolean;
/**
 * Resolve an animation-coupled duration. Returns zero under reduced motion so
 * JS cleanup stays synchronized with CSS that removes the corresponding motion.
 */
export declare function resolveMotionTimeMs(value: number | string | undefined, fallbackToken: string): number;
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