@import url(https://cdn.jsdelivr.net/npm/bootstrap@5.3.8/dist/css/bootstrap.min.css);

body {
    --bg-url: url(/img/background.jpg);
    min-height: 100vh;
    width: 100%;
    background: var(--bg-url) center / cover no-repeat;
}

    body:has([unsub-page]) {
        --bg-url: url(/img/bg-unsub.jpg);
    }

.flex-n-grow {
    display: flex;
    flex-direction: column;
    flex-grow: 1;

    .row {
        flex-grow: 1;
        justify-items: stretch;
    }
}

.row > *.flex-n-grow {
    flex-grow: 0;
}