body {
    margin: 0;
    padding: 0;
    height: 100vh;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    transition: background-image 0.5s ease-in-out;
}

h1 {
    text-align: center;
    color: white;
    font-size: 4rem;
    padding-top: 2rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}