*{box-sizing:border-box;margin:0;padding:0}body{color:#fff;background:#0a0a0f;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Helvetica Neue,Arial,sans-serif;line-height:1.6;overflow-x:hidden}body:before{content:"";z-index:-1;background:radial-gradient(circle at 20%,#667eea26 0%,#0000 50%),radial-gradient(circle at 80% 80%,#764ba226 0%,#0000 50%);width:100%;height:100%;animation:20s infinite backgroundShift;position:fixed;top:0;left:0}@keyframes backgroundShift{0%,to{opacity:1}50%{opacity:.8}}