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

header {
    background: #0078d4;
    color: #fff;
    padding: 2rem 0 1rem 0;
    text-align: center;
    box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}

header h1 {
    margin: 0;
    font-size: 2.5rem;
    letter-spacing: 1px;
}

main {
    max-width: 700px;
    margin: 2rem auto;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 16px rgba(0,0,0,0.06);
    padding: 2rem;
}

h2 {
    color: #0078d4;
    margin-top: 1.5rem;
}

ul {
    padding-left: 1.5rem;
}

footer {
    text-align: center;
    padding: 1rem 0;
    background: #eaeaea;
    color: #555;
    font-size: 0.95rem;
    border-top: 1px solid #ddd;
    margin-top: 2rem;
    border-radius: 0 0 8px 8px;
}