.card-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
}

.card-container .col-md-3 {
    display: flex;
    flex-direction: column;
    margin-bottom: 1rem;
}

.card {
    display: flex;
    flex-direction: column;
    height: 100%;
}

.card-body {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}