body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    margin: 0;
    padding: 0;
    background: #f4f4f9;
}

header {
    text-align: center;
    background: #4CAF50;
    color: white;
    padding: 20px;
}

header .btn {
    text-decoration: none;
    color: #fff;
    background: #333;
    padding: 10px 20px;
    border-radius: 5px;
}

section {
    margin: 20px;
    padding: 20px;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

section h2 {
    color: #4CAF50;
}

footer {
    text-align: center;
    background: #222;
    color: white;
    padding: 10px 0;
}

footer p {
    margin: 0;
}