body {
    font-family: Arial, sans-serif;
    background: #f5f5f5;
    color: #222;
    margin: 0;
    padding: 20px;
}

h1 {
    color: #0066cc;
}

button {
    background: #0066cc;
    color: white;
    border: none;
    padding: 10px 16px;
    border-radius: 4px;
    cursor: pointer;
}

button:hover {
    background: #004c99;
}