html,body{margin:0}html{min-height:100%;background:radial-gradient(circle at 20% 20%,#0ea5e9,transparent 40%),radial-gradient(circle at 80% 30%,#f16363,transparent 40%),radial-gradient(circle at 50% 80%,#22c55e,transparent 40%),#020617;background-size:200% 200%,200% 200%,200% 200%,auto;background-repeat:no-repeat;animation:aurora 20s ease-in-out infinite}body{display:flex;flex-direction:column}app-header{flex:0 0 auto}main{color:#fff;flex:1 0 auto;padding:2rem;display:flex;flex-direction:column;justify-content:center}app-footer{flex:0 0 auto}@keyframes aurora{0%{background-position:0% 0%,100% 0%,0% 100%}50%{background-position:100% 100%,0% 100%,50% 0%}to{background-position:0% 0%,100% 0%,0% 100%}}