body, html {
    margin: 0;
    padding: 0;
    font-family: 'Arial', sans-serif;
    background: linear-gradient(135deg, #6e8efb, #a777e3);
    color: #fff;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
}

.main-header h1 {
    font-size: 2.5rem;
    background: -webkit-linear-gradient(#eee, #333);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin: 0;
}

@media (max-width: 768px) {
    .main-header h1 {
        font-size: 2rem;
    }
}