body {
    font-family: 'Segoe UI', sans-serif;
    background-color: #f8f9fa;
    color: #222;
}
h1, h2, h3 {
    font-weight: 600;
}
.navbar {
    margin-bottom: 30px;
}
.card {
    margin-bottom: 20px;
    border-radius: 12px;
    box-shadow: 0 2px 6px rgba(0,0,0,0.08);
}
footer {
    padding: 20px;
    text-align: center;
    background-color: #222;
    color: white;
    margin-top: 40px;
}