/* using from lab6 */

.complex_form {
  margin-top: 20px;
  border-radius: 10px;
  border: 2px #3c3d3f solid;
  padding: 20px 10px 10px 10px;
  display: flex;
  flex-direction: column;
}

.complex_form .form_title {
  font-size: 20px;
  font-weight: bold;
  margin: -20px -10px 20px -10px;
  padding: 10px 0px 10px 25px;
  color: white;
  background-color: #3c3d3f;
  border-radius: 7px 7px 0px 0px;
}

.complex_form .form_radio {
  display: flex;
  justify-content: flex-start;
  align-items: center;
}

.complex_form .form_element {
  margin-bottom: 10px;
  font-size: 20px;
  border-radius: 10px;
  padding: 5px 10px 5px 10px;
}

.alert {
  color: red;
}

.hidden {
  visibility: hidden;
}

#error_box {
  color: red;
  visibility: hidden;
}

#error_box::before {
  content: "Error: ";
}