body {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.main-content {
    flex: 1;
}

.calculator-card {
    border-width: 2px !important;
    box-shadow: 10px 10px 0px rgba(0, 0, 0, 0.1);
}

.form-control {
    border-width: 2px;
}

.HIDDEN {

    visibility: hidden;

}

.NODISPLAY {

    display: none;

}