body {
    font-family: "Segoe UI", sans-serif;
    margin: 0;
    background-color: #f9fafc;
    color: #222;
}

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

header h1 {
    margin: 10px 0;
    font-size: 1.5em;
}

nav {
    margin-top: 10px;
}

nav a {
    color: white;
    text-decoration: none;
    margin: 0 10px;
    padding: 6px 10px;
    border-radius: 5px;
    transition: background 0.3s;
}

nav a:hover,
nav a.active {
    background: #0055aa;
}

main {
    max-width: 900px;
    margin: 30px auto;
    background: white;
    padding: 20px 30px;
    border-radius: 10px;
    box-shadow: 0 2px 6px rgba(0,0,0,0.1);
}

h2 {
    color: #003366;
}

img {
    width: 100%;
    border-radius: 10px;
    margin-top: 15px;
}

footer {
    background: #003366;
    color: white;
    text-align: center;
    padding: 15px 0;
    margin-top: 40px;
    font-size: 0.9em;
}