app/css/formulario.css

form {
    width: 250px;
    margin: 0 auto;
    height: 50px;
}

form p {
    text-align: center;
}

form label {
    font-size: 20px;
}

input[type="radio"] {
    display: none;
}

label {
    color: grey;
}

.clasificacion {
    direction: rtl;
    unicode-bidi: bidi-override;
}

label:hover,
label:hover~label {
    color: orange;
}

input[type="radio"]:checked~label {
    color: orange;
}