body {
    background-color: #f8f9fa;
}

.navbar {
    box-shadow: 0 2px 4px rgba(0,0,0,.1);
}

.card {
    border-radius: 0.375rem;
    box-shadow: 0 4px 6px rgba(0,0,0,.05);
}

.btn-primary {
    background-color: #0d6efd;
    border: none;
}

.footer {
    position: absolute;
    bottom: 0;
    width: 100%;
}