.video-background {
    position: relative;
    width: 100%;
    height: 0;
    padding-top: 56.25%; 
    overflow: hidden;
}

/* Styl wideo jako tła */
.video-background video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover; 
    z-index: 1; 
    opacity: 0; 
    transition: opacity 1s ease; 
}