.register-container {
  background-color: rgba(0, 0, 0, 0.8);
  padding: 20px;
  border-radius: 8px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  text-align: center;
}
.register-container h1 {
  font-size: 1.8em;
  margin-bottom: 15px;
  color: #fff;
}
.register-container input {
  padding: 8px;
  margin: 5px 0;
  border: 1px solid #ccc;
  border-radius: 5px;
  font-size: 1em;
}
.register-container button {
  width: 60%;
  padding: 10px;
  margin: 5px 0;
  background-color: #28a745;
  color: #fff;
  border: none;
  border-radius: 5px;
  font-size: 1.2em;
  cursor: pointer;
}
.register-container button:hover {
  background-color: #218838;
}
.message {
  margin-top: 10px;
  font-size: 0.9em;
}
.success {
  color: #28a745;
}
.error {
  color: #dc3545;
}