.video-banner {
    position: relative;
    width: 100%;
    height: 720px;
    background-size: cover;
    background-position: center;
    overflow: hidden;
}

.video-banner__video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 0;
}

.video-banner__overlay {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 5;
    padding: 0 2rem;
    max-width: 740px;
    width: 100%;
    box-sizing: border-box;
}

.video-banner__overlay img {
    width: 100%;
    height: auto;
    display: block;
}

@media (max-width: 768px) {
    .video-banner {
        height: 340px;
    }
}

/* video je prekryto cernym gradientem shora dolu 10% - 30% */
.video-banner::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(to bottom, rgba(0, 0, 0, 0.1), rgba(0, 0, 0, 0.3));
    z-index: 1;
    /* nad video, ale pod overlay */
    pointer-events: none;
}

/* efekt ztmaveni videa, kdyz je videt mene nez 50% videa 
  (pak je video zastaveno a ma nastaveno .is-paused) 
  */
.video-banner::after {
    content: "";
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    opacity: 0;
    transition: opacity 0.6s ease;
    z-index: 2;
    /* pod overlay, nad ::before */
    pointer-events: none;
}

.video-banner.is-paused::after {
    opacity: 1;
}