body {
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    height: 100vh;

    .lgn-grow {
        flex: 1;
    }

    &.waiting * {
        cursor: wait !important;
    }
}

.hidden {
    display: none !important;
}

.text-align-center {
    text-align: center;
}