/* Reset default styles */
body, h1, h2, p, nav, footer {
    margin: 0;
    padding: 0;
    font-family: Arial, sans-serif;
}

body {
    background-color: #f0f8ff;
    color: #333;
    line-height: 1.6;
    padding: 20px;
}

header {
    background-color: #004080;
    color: white;
    padding: 20px 10px;
    text-align: center;
}

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

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

main {
    margin: 20px auto;
    max-width: 700px;
    text-align: center;
}

main img {
    max-width: 300px;
    height: auto;
    border-radius: 10px;
    margin: 15px 0;
}

footer {
    text-align: center;
    margin-top: 40px;
    font-size: 0.9em;
    color: #666;
}