[рони]

maxg5,

$(function(){
	const primaryMenu = $(".primary-menu");
	const site = $(".site");
 	let isOpen = false;

    $(".burger").click(function () {
		isOpen ^= true;
    	primaryMenu.css({ left: isOpen ? "0px" : "-330px"});
		site.css({ "background-color": isOpen ? "rgba(17,17,17,0.4)" : "#fff"});
        $(this).toggleClass("burger close")
	});
});