.active .faq-question i{transform:rotate(180deg)}.active .faq-answer{display:block}.top-btn{position:fixed;bottom:30px;right:30px;width:50px;height:50px;background-color:var(--primary-color);color:white;border-radius:50%;display:flex;justify-content:center;align-items:center;cursor:pointer;box-shadow:var(--box-shadow);opacity:0;transition:opacity .3s ease}.top-btn.visible{opacity:1}