import type { ThemeBreakpoints } from "./themeTypes.js";
/**
 * A value that can vary per breakpoint. A plain `T` is shorthand for
 * `{ default: T }` (inline only, no responsive overrides).
 *
 * The object form requires a `default` key and optional keys matching
 * `ThemeBreakpoints` (including keys added via module augmentation).
 */
export type ResponsiveValue<T = number> = T | (Partial<Record<keyof ThemeBreakpoints, T>> & {
    default: T;
});
/**
 * Returns the default (inline) value from a `ResponsiveValue`.
 * For a plain value, returns it directly. For an object, returns the `default` property.
 */
export declare function getDefaultFromResponsiveValue<T = number>(value: ResponsiveValue<T>): T;
/**
 * Returns the default value from a `ResponsiveValue`, or `undefined` if the
 * input is `undefined`. Useful for extracting inline prop values from optional
 * theme properties.
 */
export declare function getDefaultOrUndefined<T>(value: ResponsiveValue<T> | undefined): T | undefined;
/**
 * Returns the non-default breakpoint overrides from a `ResponsiveValue`.
 * For a plain value, returns an empty array. For an object, returns one
 * entry per breakpoint key (excluding `default`).
 */
export declare function getResponsiveOverrides<T = number>(value: ResponsiveValue<T>): Array<{
    breakpointKey: keyof ThemeBreakpoints;
    value: T;
}>;