испытание UI-кит. есть где-то недочёты, но не могу найти

body {

width: 550px;
}

form {
margin: 0 auto;
padding: 20px;
width: 400px;
border-radius: 10px;
background-color: #ffffff;
box-shadow: 0 0 10px #cccccc;
}

fieldset {
padding: 10px;
border: 1px solid #34495e;
border-radius: 5px;
}

fieldset legend {
color: #34495e;
}

.half-width {
display: inline-block;
margin-right: -4px;
width: 50%;
}

label {
display: block;
margin-top: 10px;
margin-bottom: 5px;
}

.half-width input {
display: none;
}

.half-width input:not(:checked):not(:disabled)+ label {
color: #333333;
vertical-align: middle;
}

.half-width input+label::before {
content: “”;
display: inline-block;
width: 7px;
height: 7px;
margin-right: 8px;
vertical-align: middle;
border: 3px solid #ffffff;
box-shadow: 0 0 0 3px #a0a0a0;
}

input[type=“radio”]+label::before {
border-radius: 50%;
}

input:checked+label::before {
background-color: #1abc9c;
box-shadow: 0 0 0 3px #1abc9c;
}

input:checked + label {
color: #1abc9c;
}

input:disabled {
box-shadow: 0 0 0 3px #cecece;
}

{
color: #cecece;
}

input[type=“text”] {
width: 95%;
height: 24px;
margin-bottom: 10px;
padding: 2px 5px;
color: #000000;
border: 2px solid #bdc3c7;
border-radius: 5px;
vertical-align: middle;
}

input:required {
border-color: #e74c3c;
}

input:disabled {
color: #bdc3c7;
background-color: #f5f5f5;
border-color: #ecf0f1;
opacity: 0.5;
}

input:invalid {
color: #c0392b;
background-color: #f2a097;
border-color: #e74c3c;
}

input:disabled + label::before {
box-shadow: 0 0 0 3px #cecece;
}

input:disabled + label{
color: #cecece;
}

opacity: 0.5;

1 Симпатия