.radio {
  display: inline-flex;
}

/* .radio input {
  display: none;
} */

.radio-mark1 {
  background-color: transparent;
  border-radius: 50%;
  border: 2px solid var(--purple);
  cursor: pointer;
  height: 16px;
  margin-left: 6px;
  position: relative;
  top: 3px;
  transition: background-color 0.2s;
  width: 16px;
}

.radio-mark1::before {
  background-color: var(--purple);
  border-radius: 50%;
  content: none;
  height: 7px;
  left: 50%;
  position: absolute;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 7px;
}

.radio input:checked ~ span::before {
  content: "";
}