document
    .querySelectorAll('.nav__item a[href^="#"]')
    .forEach(trigger => {
        trigger.onclick = function(e) {
            e.preventDefault();
            let hash = this.getAttribute('href');
            let target = document.querySelector(hash);
            let headerOffset = 100;
            let elementPosition = target.offsetTop;
            let offsetPosition = elementPosition - headerOffset;

            window.scrollTo({
                top: offsetPosition,
                behavior: "smooth"
            });
        };
    });