body {background:#000;color:#e0e0e0;font-family:-apple-system,'SF Pro Text',sans-serif;margin:0}
header{text-align:center;padding:1.5em 1em;border-bottom:1px solid #222}
h1{color:#00ffa3;font-size:1.3em;margin:0}
.version{color:#888;font-size:0.8em}
nav ul{list-style:none;padding:0;margin:0;text-align:center}
nav li{padding:0.8em;border-bottom:1px solid #111;cursor:pointer}
nav li:hover{background:#111;color:#00ffa3}
main{padding:1.5em;max-width:800px;margin:auto}
.hidden{display:none}
footer{text-align:center;padding:1em;color:#555;font-size:0.8em}