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

header, footer {
    background-color: #0056b3;
    color: #ffffff;
    padding: 10px 20px;
}

header nav ul {
    list-style: none;
    display: flex;
    gap: 20px;
    padding: 0;
}

header nav ul li a, footer ul li a {
    text-decoration: none;
    color: #ffffff;
}

.hero {
    text-align: center;
    padding: 50px;
    background: #eee;
}

.hero .btn {
    margin: 10px;
    padding: 10px 20px;
    text-decoration: none;
    background-color: #0056b3;
    color: #ffffff;
    border-radius: 5px;
}