body{background:var(--color-surface-base)}body:before{content:"";position:fixed;z-index:-1;inset:0;background:radial-gradient(circle at 50% 50%,blue 0,indigo 20%,orange 40%,blue 60%,indigo 80%,orange 100%);background-size:400% 400%;animation:background-gradient 30s ease infinite;opacity:.04}@keyframes background-gradient{0%{background-position:0 50%}50%{background-position:100% 50%}to{background-position:0 50%}}