.vb{overflow:hidden;background:var(--abyss)}.vb,.vb img,.vb video{position:absolute;inset:0}.vb img,.vb video{width:100%;height:100%;object-fit:cover}.vb video{opacity:0;transition:opacity .4s}.vb video.is-on{opacity:1}.vb-dim{position:absolute;inset:0;background:radial-gradient(ellipse at center,rgba(5,8,14,.35) 0,rgba(5,8,14,.7) 100%),linear-gradient(to bottom,rgba(5,8,14,.55) 0,transparent 25%,transparent 70%,var(--abyss) 100%)}