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

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

.logo {
    max-width: 150px;
    margin: 0 auto;
    display: block;
}

nav ul.menu {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    justify-content: center;
    background-color: #444;
}

nav ul.menu li {
    margin: 0 15px;
}

nav ul.menu li a {
    color: #fff;
    text-decoration: none;
    font-weight: bold;
    padding: 10px 15px;
    display: block;
    transition: background 0.3s;
}

nav ul.menu li a:hover {
    background-color: #007BFF;
    border-radius: 5px;
}

main {
    padding: 20px;
    text-align: center;
}

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