body {
    background-color: #f8f9fa;
}
.card {
    border-radius: 1rem;
    box-shadow: 0 0.5rem 1rem rgba(0,0,0,0.15);
}
h1, h3 {
    color: #343a40;
}
.btn-primary {
    background-color: #0069d9;
    border: none;
}
.btn-primary:hover {
    background-color: #0056b3;
}
.table {
    background-color: #fff;
}
.table th, .table td {
    vertical-align: middle;
}