import { useState, useEffect } from 'react'; export const useResponsiveMenuWidth = () => { const [isMounted, setIsMounted] = useState(false); const [menuWidth, setMenuWidth] = useState('var(--width-20)'); useEffect(() => { setIsMounted(true); const handleResize = () => { setMenuWidth( window.innerWidth >= 768 ? 'var(--width-20)' : 'calc(var(--width-80) - var(--vw-0_75) * 2)' ); }; handleResize(); window.addEventListener('resize', handleResize); return () => window.removeEventListener('resize', handleResize); }, []); return { isMounted, menuWidth }; };