html, body {
    height: 100%;
    margin: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: #212529;
    overflow: hidden;
}

.card {
    background-color: #2B3035;
    border-radius: 10px;
}

.form-control:focus {
    border-color: #198754;
    box-shadow: 0 0 0 0.25rem rgba(25, 135, 84, 0.25);
}

@media (max-width: 576px) {
    .card {
        width: 90%;
    }
}

body {
    padding: 0;
    margin: 0;
}