html, body {
    height: 100%;
    margin: 0;
    padding: 0;
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
}

body {
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
}

main {
    width: 100%;
    height: auto;
}