body {
    font-family: Arial;
    background: #f4f9ff;
}

.card {
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.btn {
    border-radius: 10px;
}

h2, h3 {
    font-weight: bold;
}