body {
overflow-y: hidden; /* Show vertical scrollbar when content is loaded */
}
body.content-loaded {
overflow-y: scroll; /* Show vertical scrollbar when content is loaded */
}

#intro-overlay {
position: fixed;
top: 0;
left: 0;
width: 100%;
height: 100%;
background-color: var(--color-accent);
display: flex;
justify-content: center;
align-items: center;
z-index: 9999;
opacity: 1;
transition: opacity 0.4s ease-in-out, visibility 0.4s ease-in-out;
}

#intro-overlay.hidden {
opacity: 0;
visibility: hidden;
}

#intro-overlay img {
max-width: 100%;
max-height: 100%;
object-fit: cover;
opacity: 1;
transition: opacity 0.2s ease-in-out;
}

#main-content {
opacity: 0;
transition: opacity 0.4s ease-in-out;
position: relative;
z-index: 1;
}

body.content-loaded #main-content {
opacity: 1;
}