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

header {
    background-color: #004080;
    color: white;
    padding: 15px 20px;
    text-align: center;
}

nav {
    background: #0066cc;
    overflow: hidden;
}

nav a {
    display: inline-block;
    color: white;
    padding: 14px 20px;
    text-decoration: none;
    transition: background-color 0.3s ease;
}

nav a:hover {
    background-color: #003366;
}

.container {
    max-width: 960px;
    margin: 20px auto;
    padding: 20px;
    background: white;
    box-shadow: 0 0 8px rgba(0,0,0,0.1);
}

footer {
    background-color: #004080;
    color: white;
    text-align: center;
    padding: 10px;
    position: fixed;
    bottom: 0;
    width: 100%;
}