body {
    background-color:#eeeeee;
}
.btn-primary{
    background-color: #4590d4;
}
#error-content {
    color:#dc3545;
}

.card-header {
    background-color: #fafafa;
}

.navbar-expand-lg {
    box-shadow: 0 0 5px 2px rgb(0 0 0 / 10%), 0 0px 5px rgb(0 0 0 / 14%);
}