body {
    font-family: Arial, sans-serif;
    margin: 0;
    background-color: #f4f4f4;
    color: #333;
}

header {
    background-color: #222;
    color: white;
    padding: 15px;
    text-align: center;
}

nav a {
    color: white;
    margin: 0 10px;
    text-decoration: none;
}

nav a:hover {
    text-decoration: underline;
}

main {
    padding: 20px;
    background: white;
    max-width: 800px;
    margin: 20px auto;
    border-radius: 5px;
}

button {
    padding: 10px 15px;
    background: #007bff;
    border: none;
    color: white;
    cursor: pointer;
    border-radius: 4px;
}

button:hover {
    background: #0056b3;
}

footer {
    text-align: center;
    padding: 10px;
    background: #222;
    color: white;
    position: fixed;
    bottom: 0;
    width: 100%;
}