.was-validated .custom-file-input:valid ~ .custom-file-label, .custom-file-input.is-valid ~ .custom-file-label {
    border-color: #28a745;
}

.was-validated .custom-file-input:valid:focus ~ .custom-file-label, .custom-file-input.is-valid:focus ~ .custom-file-label {
    border-color: #28a745;
    box-shadow: 0 0 0 0.2rem rgba(40, 167, 69, 0.25);
}

.was-validated .custom-file-input:invalid ~ .custom-file-label, .custom-file-input.is-invalid ~ .custom-file-label {
    border-color: #dc3545;
}

.was-validated .custom-file-input:invalid:focus ~ .custom-file-label, .custom-file-input.is-invalid:focus ~ .custom-file-label {
    border-color: #dc3545;
    box-shadow: 0 0 0 0.2rem rgba(220, 53, 69, 0.25);
}

.custom-file-input {
    position: relative;
    z-index: 2;
    width: 100%;
    height: calc(1.5em + 0.75rem + 2px);
    margin: 0;
    opacity: 0;
}

    .custom-file-input:focus ~ .custom-file-label {
        border-color: #80bdff;
        box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
    }

    .custom-file-input[disabled] ~ .custom-file-label,
    .custom-file-input:disabled ~ .custom-file-label {
        background-color: #e9ecef;
    }

    .custom-file-input:lang(en) ~ .custom-file-label::after {
        content: "Browse";
    }

    .custom-file-input:lang(fa) ~ .custom-file-label::after {
        content: "انتخاب";
    }

    .custom-file-input ~ .custom-file-label[data-browse]::after {
        content: attr(data-browse);
    }

.custom-file-label {
    position: absolute;
    top: 0;
    right: 0;
    left: 0;
    z-index: 1;
    height: calc(1.5em + 0.75rem + 2px);
    padding: 0.375rem 0.75rem;
    font-weight: 400;
    line-height: 1.5;
    color: #495057;
    background-color: #fff;
    border: 1px solid #ced4da;
    border-radius: 0.25rem;
}

    .custom-file-label::after {
        position: absolute;
        top: 0;
        left: 0;
        bottom: 0;
        z-index: 3;
        display: block;
        height: calc(1.5em + 0.75rem);
        padding: 0.375rem 0.75rem;
        line-height: 1.5;
        color: #495057;
        content: "Browse";
        background-color: #e9ecef;
        border-left: inherit;
        border-radius: 0 0.25rem 0.25rem 0;
    }

.custom-control-label::before,
.custom-file-label,
.custom-select {
    transition: background-color 0.15s ease-in-out, border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
}

.custom-file {
    position: relative;
    display: inline-block;
    width: 100%;
    height: calc(1.5em + 0.75rem + 2px);
    margin-bottom: 0;
}