classic-ui/assets/styles/components/_radio.scss

.b-radio {
  &.radio {
    input[type=radio] {
      + .check {
        border-color: $primary;
      }

      &:checked {
        + .check {
          &:before {
            transform: scale(.6);
          }
        }
      }
    }

    + .radio {
      margin-left: 1rem;
    }

    .control-label {
      display: flex;
      align-items: center;
      color: $white;

      .button {
        margin-left: .45rem;
      }
    }
  }
}