body {
    background-size: cover;
    background-repeat: no-repeat;
    height: 100vh;
}

[data-bs-theme=dark] body {
    background: rgba(0, 0, 0, 0.5);
    background-blend-mode: darken;
    background-size: cover;
    background-repeat: no-repeat;
    height: 100vh;
}

.card {
    width: 24rem;
}