#user-guide-button {
  position: fixed;
  top: 20px;
  right: 20px;
  width: 40px;
  height: 40px;
  background: rgba(11, 18, 34, 1);
  border: 1px solid #253149;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  color: white;
  font-size: 24px;
  font-weight: bold;
  z-index: 1000;
  transition: all 0.3s ease;
}
#user-guide-button:hover {
  background: #4b5563;
  transform: scale(1.1);
  text-decoration: none;
  color: white;
}
#user-guide-button:active {
  transform: scale(0.95);
}
#user-guide-button::before {
  content: "?";
  font-family: Arial, sans-serif;
}