#scrollToTopBtn {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 1055;
  background-color: #004c97;
  color: #fff;
  border: none;
  width: 3rem;
  height: 3rem;
  padding: 0;
  border-radius: 50%;
  font-size: 1.5rem;
  cursor: pointer;
  box-shadow: 0 2px 6px rgba(0,0,0,0.3);
  display: none;
  transition: background-color 0.2s, transform 0.2s;
}

#scrollToTopBtn:hover {
  background-color: #003366;
  transform: translateY(-2px);
}