.reference-card {
    background-color: var(--asave-shadow);
    padding: 1rem;
    display: flex;
    flex-direction: column;
    justify-content: stretch;
    text-transform: uppercase;
    min-height: 200px;
    text-align: center;
}

.responsive-grid-4 {
    flex: 1;
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

.card-child {
    color: white;
    background-color: #31436c8c;
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

@media (min-width: 640px) {
    .responsive-grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 768px) {
    .responsive-grid-4 {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (min-width: 1024px) {
    .responsive-grid-4 {
        grid-template-columns: repeat(4, 1fr);
    }
}