:root{--primary:var(--lime)}.feedback-btn{align-items:center;background:#dc3545;border:none;border-radius:16px;bottom:20px;box-shadow:0 4px 16px rgba(220,53,69,.5);color:#fff;cursor:pointer;display:flex;font-size:16px;font-weight:500;gap:10px;padding:14px 24px;position:fixed;right:20px;transition:all .3s;z-index:100}@media (width <= 640px){.feedback-btn{border-radius:50%;height:52px;justify-content:center;padding:0;width:52px}.feedback-btn span{display:none}}