body {
    background: #f8f9fa;
}
.card {
    box-shadow: 0 2px 8px rgba(0,0,0,0.07);
    border-radius: 16px;
}
.navbar {
    border-radius: 0 0 16px 16px;
}
footer {
    border-radius: 16px 16px 0 0;
}