declare type AbsoluteUnits = 'cm' | 'mm' | 'in' | 'px' | 'pt' | 'pc';
declare type RelativeUnits = '%' | 'em' | 'ex' | 'ch' | 'rem' | 'vw' | 'vh' | 'vmin' | 'vmax';
export declare type Numeric = number | string;
export declare type MeasurementUnit = AbsoluteUnits | RelativeUnits;
export declare type BreakpointBehavior = 'up' | 'down' | 'only';
export interface Breakpoints {
    [breakpointName: string]: Breakpoint;
}
export interface LayoutOptions {
    /**
     * Measurement unit that suffixes numeric prop values.
     * @default "px"
     * @example
     * <Box padding={10} />
     * // "padding: 10px"
     */
    defaultUnit: MeasurementUnit;
    /**
     * Map of layout breakpoints.
     */
    breakpoints: Breakpoints;
    /**
     * Breakpoint name to use when no explicit breakpoint
     * name is specified in a prop name.
     * @default "xs"
     */
    defaultBreakpointName: string;
    defaultBehavior: BreakpointBehavior;
}
export interface Breakpoint {
    [propName: string]: any;
    minHeight?: Numeric;
    maxHeight?: Numeric;
    minWidth?: Numeric;
    maxWidth?: Numeric;
    minResolution?: string;
    maxResolution?: string;
    aspectRatio?: string;
    minAspectRatio?: string;
    maxAspectRatio?: string;
    scan?: 'interlace' | 'progressive';
    orientation?: 'portrait' | 'landscape';
    displayMode?: 'fullscreen' | 'standalone' | 'minimal-ui' | 'browser';
}
declare const defaultOptions: LayoutOptions;
export default defaultOptions;