.floating-call {
  position: fixed;
  left: 26px;
  bottom: 24px;
  z-index: 160;
  width: 54px;
  height: 54px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 2px solid rgba(255, 255, 255, .9);
  border-radius: 50%;
  color: #fff;
  background: linear-gradient(135deg, #159bd3, #0875b7);
  box-shadow: 0 8px 20px rgba(6, 91, 145, .32);
  font-size: 25px;
  text-decoration: none;
  transition: transform .18s ease, box-shadow .18s ease;
}

.floating-call:hover {
  color: #fff;
  transform: translateY(-3px) scale(1.04);
  box-shadow: 0 12px 25px rgba(6, 91, 145, .4);
}

.floating-call:focus-visible {
  outline: 3px solid rgba(21, 155, 211, .35);
  outline-offset: 4px;
}

@media (max-width: 720px) {
  .floating-call {
    left: 17px;
    bottom: 17px;
    width: 50px;
    height: 50px;
    font-size: 23px;
  }
}