html, body {
    margin: 0;
    padding: 0;
    overflow: hidden; /* Hides scrollbars */
    height: 100%;
    width: 100%;
}

#image-container {
    height: 100vh; /* Full viewport height */
    width: 100vw; /* Full viewport width */
    display: flex;
    justify-content: center;
    align-items: center;
    background-size: cover; /* Ensures image covers the container */
    background-position: center;
    transition: background-image 1s ease-in-out; /* Smooth transition between images */
}