radios.css

/* SOURCE: https://codepen.io/rauldronca/pen/EWLeMz */
.custom-radios div {
    display: inline-block;
  }
  .custom-radios input[type=radio] {
    display: none;
  }
  .custom-radios input[type=radio] + label {
    color: #333;
    font-family: Arial, sans-serif;
    font-size: 14px;
  }
  .custom-radios input[type=radio] + label span {
    display: inline-block;
    width: 40px;
    height: 40px;
    margin: -1px 4px 0 0;
    vertical-align: middle;
    cursor: pointer;
    border-radius: 50%;
    border: 2px solid #FFFFFF;
    /*box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.33);*/
    background-repeat: no-repeat;
    background-position: center;
    text-align: center;
    line-height: 44px;
  }
  .custom-radios input[type=radio] + label span img {
    opacity: 0;
    transition: all 0.3s ease;
  }
  .custom-radios input[type=radio] + label span {
    background-color: var(--bgc);
  }
  .custom-radios input[type=radio]:checked + label span img {
    opacity: 1;
  }