body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    line-height: 1.6;
}

header {
    background: #333;
    color: #fff;
    text-align: center;
    padding: 1em 0;
}

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

nav ul li {
    margin: 0;
}

nav ul li a {
    color: #fff;
    text-decoration: none;
    padding: 0.5em 1em;
    display: block;
}

nav ul li a:hover {
    background: #555;
}

section {
    margin: 2em;
}

h2 {
    border-bottom: 2px solid #333;
    padding-bottom: 0.5em;
}

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

.project {
    border: 1px solid #ddd;
    padding: 1em;
    margin-bottom: 1em;
}

footer {
    background: #333;
    color: #fff;
    text-align: center;
    padding: 1em 0;
    position: fixed;
    bottom: 0;
    width: 100%;
}