body {
  background-color: #282828;
  color: #ffffff;
}

textarea,
input[type="submit"] {
  background-color: #373b41;
  color: #c5c8c6;
  border: none;
}

input[type="submit"] {
  padding: 10px;
}

#submitButton {
  width: 150px;
}

#submitButton[disabled] {
  background-color: #cccccc;
  color: #666666;
  cursor: not-allowed;
}

#spinner {
  margin-left: 10px;
}

.input-group {
  margin-bottom: 20px;
}

.input-group label {
  display: block;
  margin-bottom: 10px;
}