body {
    background-color: #f8f9fa;
}

.container {
    max-width: 960px;
}

.card {
    border-radius: 0.5rem;
    box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
}

.btn-primary {
    background: linear-gradient(45deg, #0d6efd, #0dcaf0);
    border: none;
}