#brng-container {
  text-align: center;
  margin: 40px auto;
  padding: 20px;
  border: 1px solid #ccc;
  border-radius: 8px;
  box-shadow: 0 1px 5px rgba(0, 0, 0, 0.1);
}
#brng-display {
  margin-bottom: 20px;
  padding: 20px;
  background-color: #f0f0f0;
  border: 1px solid #ddd;
  border-radius: 4px;
}
#brng-number {
  font-size: 48px;
  font-weight: bold;
}
#brng-controls label {
  margin-right: 10px;
}
#brng-controls input {
  width: 90px;
  padding: 5px;
  margin-top: 5px;
  margin-bottom: 5px;
}
#brng-generate-button {
  display: block;
  width: 100%;
  padding: 10px;
  margin-top: 10px;
  color: white;
  background-color: #007bff;
  border: none;
  border-radius: 4px;
  cursor: pointer;
}
#brng-generate-button:hover {
  background-color: #0056b3;
}
.brng-error-message {
  color: red;
  display: none;
  margin-top: 10px;
}