.ciele-demo-video {
    width: min(100%, 768px);
    aspect-ratio: 768 / 820;
    margin-inline: auto;
    overflow: hidden;
    border-radius: 1rem;
    background: #171919;
}

.ciele-demo-video video {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: contain;
}

@media (max-width: 540px) {
    .ciele-demo-video {
        border-radius: .75rem;
    }
}