body {
    margin: 0;
    font-family: 'Helvetica Neue', sans-serif;
    background-color: #f9f9f9;
    color: #333;
    line-height: 1.6;
}

.container {
    max-width: 960px;
    margin: 0 auto;
    padding: 1.5rem;
}

header {
    background-color: #004060;
    color: white;
    padding: 1rem 0;
}

header h1 {
    margin: 0;
    font-size: 1.5rem;
}

nav ul {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    padding: 0;
    margin-top: 0.5rem;
    list-style: none;
}

nav a {
    color: white;
    text-decoration: none;
}

nav a.active {
    text-decoration: underline;
}

main h2 {
    font-size: 2rem;
    margin-top: 2rem;
    color: #004060;
}

main h3 {
    margin-top: 1.5rem;
    color: #003040;
}

ul {
    padding-left: 1.5rem;
}

footer {
    background-color: #ddd;
    text-align: center;
    padding: 1rem 0;
    margin-top: 2rem;
}