body {
    margin: 0;
    font-family: Arial, Helvetica, sans-serif;
    line-height: 1.6;
    background: #f7f7f7;
    color: #333;
}

header {
    background: #0b3c5d;
    color: #fff;
    text-align: center;
    padding: 30px 10px;
}

nav {
    background: #1d2731;
    text-align: center;
    padding: 10px;
}

nav a {
    color: #fff;
    margin: 0 15px;
    text-decoration: none;
    font-weight: bold;
}

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

section {
    padding: 30px;
    background: #fff;
    margin: 20px;
    border-radius: 6px;
}

h2 {
    color: #0b3c5d;
}

ul {
    list-style-type: square;
    padding-left: 20px;
}

footer {
    background: #1d2731;
    color: #fff;
    text-align: center;
    padding: 15px;
}