body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
    background-color: #0f172a;
    color: #e2e8f0;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100vh;
}

main {
    text-align: center;
}

h1 {
    font-size: 3rem;
    margin-bottom: 0.5rem;
}