body {
    font-family: Arial, sans-serif;
    margin: 0;
    background: #f4f4f4;
    color: #333;
}

header {
    background: #0a2540;
    color: white;
    padding: 20px;
    text-align: center;
}

header h1 {
    margin: 0;
    font-size: 2rem;
}

nav {
    background: #133b5c;
    padding: 10px;
    text-align: center;
}

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

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

main {
    max-width: 900px;
    margin: auto;
    padding: 20px;
}

article {
    background: white;
    padding: 15px;
    margin-bottom: 20px;
    border-radius: 8px;
    box-shadow: 0px 2px 5px rgba(0,0,0,0.1);
}

article h2 {
    color: #0a2540;
}

footer {
    background: #0a2540;
    color: white;
    text-align: center;
    padding: 15px;
    margin-top: 20px;
}