body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    background: #f4f4f9;
    color: #333;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 2rem;
}

header {
    font-size: 2.5rem;
    font-weight: bold;
    margin-bottom: 1rem;
    color: #222;
}

section {
    width: 100%;
    max-width: 600px;
    background: #fff;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.05);
    margin-bottom: 1rem;
}

h2 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: #444;
}

ul {
    list-style: none;
    padding: 0;
}

li {
    margin: 0.75rem 0;
}

a {
    text-decoration: none;
    color: #1a73e8;
    font-weight: 500;
    transition: color 0.2s ease;
}

a:hover {
    color: #0b59d9;
}

@media (max-width: 600px) {
    body {
        padding: 1rem;
    }

    section {
        padding: 1.5rem;
        margin-bottom: 1rem;
    }
}