body {
    font-family: 'Courier New', Courier, monospace;
    background-color: #1e1e1e;
    color: #d4d4d4;
    margin: 0;
    padding: 0;
    line-height: 1.6;
}

header {
    background-color: #1e1e1e;
    color: #00ff00;
    padding: 10px 0;
    text-align: center;
    border-bottom: 1px solid #00ff00;
}

nav ul {
    list-style: none;
    padding: 0;
}

nav ul li {
    display: inline;
    margin: 0 10px;
}

nav ul li a {
    color: #00ff00;
    text-decoration: none;
}

section {
    padding: 20px;
    margin: 20px;
    background-color: #2e2e2e;
    border: 1px solid #00ff00;
    border-radius: 5px;
}

footer {
    background-color: #1e1e1e;
    color: #00ff00;
    text-align: center;
    padding: 10px 0;
    position: fixed;
    width: 100%;
    bottom: 0;
    border-top: 1px solid #00ff00;
}