body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background: #f6f8fa;
    color: #222;
}

header {
    background: #0e4677;
    color: #fff;
    padding: 1rem 2rem;
    text-align: center;
}

header h1 {
    margin: 0 0 0.5rem 0;
}

nav a {
    color: #fff;
    margin: 0 1rem;
    text-decoration: none;
    font-weight: bold;
}

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

a, a:visited {
    color: #0e4677;
}

main {
    max-width: 700px;
    margin: 2rem auto;
    padding: 1rem;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 4px 16px rgba(0,0,0,0.07);
}

section {
    margin-bottom: 2rem;
}

h2 {
    color: #3b5998;
}

ul {
    padding-left: 1.2rem;
}

footer {
    background: #eee;
    text-align: center;
    padding: 1rem;
    font-size: 0.96rem;
    color: #666;
    margin-top: 2rem;
}

#sponsor img {
    vertical-align: middle;
    max-height: 60px;
}

#sponsor p {
    margin: 0.5rem 0 0 0;
    font-size: 1.1rem;
}

@media (max-width: 600px) {
    main {
        margin: 1rem;
        padding: 0.5rem;
    }
    header, footer {
        padding: 0.5rem;
    }
}