/* Global page formatting */
body {
    font-family: Arial, Helvetica, sans-serif;
    margin: 0;
    padding: 0;
    background: #f4f4f4;
    color: #333;
}

/* Header */
header {
    background: #003366;
    color: white;
    padding: 20px;
    text-align: center;
}

/* Navigation */
nav {
    background: #0055a5;
    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 content */
main {
    padding: 20px;
    max-width: 900px;
    margin: auto;
    background: white;
}

/* Footer */
footer {
    background: #003366;
    color: white;
    text-align: center;
    padding: 10px;
    margin-top: 20px;
}

/* Images */
img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
}