.radio {
    vertical-align: top;
    width: 17px;
    height: 17px;
    margin: 0 3px 0 0;
}

.radio + label {
    cursor: pointer;
}

.radio:not(checked) {
    position: absolute;
    opacity: 0;
}

.radio:not(checked) + label {
    position: relative;
    padding: 0 0 0 35px;
}

.radio:not(checked) + label:before {
    content: '';
    position: absolute;
    top: -3px;
    left: 0;
    width: 22px;
    height: 22px;
    border: 1px solid #CDD1DA;
    border-radius: 50%;
    background: #FFF;
}

.radio:not(checked) + label:after {
    content: '';
    position: absolute;
    top: 1px;
    left: 4px;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: #9FD468;
    box-shadow: inset 0 1px 1px rgba(0, 0, 0, .5);
    opacity: 0;
    transition: all .2s;
}

.radio:checked + label:after {
    opacity: 1;
}

.radio:focus + label:before {
    box-shadow: 0 0 0 3px rgba(255, 255, 0, .5);
}