/* root */
* {
  font-family: "Roboto", sans-serif;
}
/* body */
body {
  background-color: rgb(36, 29, 80);
}
input {
  background-color: #dcdcdc;
  font-weight: 600;
  padding: 3px 10px;
  border: none;
  outline: none;
}
.calc-sec {
  background-color: #f8f8f8;
}
.error {
  color: red;
  visibility: hidden;
}
#calculate,
#save {
  border: 2px solid transparent;
}