.form-control {
    border-radius: 0;
    outline: transparent 1px solid;
}

.form-control:focus {
    color: #495057;
    background-color: #fff;
    border-color: #80bdff;
    outline: 0;
    box-shadow: 0 0 0 0.2rem rgba(0,123,255,.25);
}

label + .field-validation-error {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    overflow: hidden;
    clip: rect(0,0,0,0);
    white-space: nowrap;
    -webkit-clip-path: inset(50%);
    clip-path: inset(50%);
    border: 0;
}

.field-validation-error + .form-control {
    border-color: red;
    outline: red 1px solid;
}

.field-validation-error + .form-control:focus {
    border-color: red;
    outline: red 1px solid;
    box-shadow: 0 0 0 0.2rem rgba(123,0,0,.25);
}

.field-validation-error {
    display: block;
    color: red;
}

.field-validation-valid + .form-control.valid {
    border-color: green;
    outline: green 1px solid;
}

.field-validation-valid + .form-control.valid:focus {
    border-color: green;
    outline: green 1px solid;
    box-shadow: 0 0 0 0.2rem rgba(0,123,0,.25);
}