import { StyleOptions, AnimationKeyframes } from '../types';
export declare class StyleUtils {
    /**
     * Combine multiple style strings
     */
    static combineStyles(...styles: (string | undefined)[]): string;
    /**
     * Create CSS keyframes string
     */
    static createKeyframes(name: string, frames: AnimationKeyframes): string;
    /**
     * Apply default styles from options
     */
    static applyDefaultStyles(options?: StyleOptions): string;
    /**
     * Create CSS animation string
     */
    static createAnimation(name: string, duration?: number, options?: Partial<{
        timingFunction: string;
        delay: number;
        iterationCount: string | number;
        direction: string;
        fillMode: string;
    }>): string;
    /**
     * Create vendor prefixed styles
     */
    static vendorPrefix(property: string, value: string): string;
    /**
     * Create transform string from multiple transforms
     */
    static createTransform(...transforms: string[]): string;
    /**
     * Create transition string
     */
    static createTransition(properties: string[], duration?: number, timingFunction?: string): string;
    /**
     * Create box shadow string
     */
    static createBoxShadow(...shadows: string[]): string;
    /**
     * Create text shadow string
     */
    static createTextShadow(...shadows: string[]): string;
    /**
     * Create gradient string
     */
    static createGradient(type: 'linear' | 'radial', direction: string, stops: Array<{
        color: string;
        position: number;
    }>): string;
    /**
     * Validate CSS units
     */
    static validateUnit(value: string): boolean;
}