:root{--night:#0b0a1f;--night2:#141236;--ink:#e8e0ff;--gold:#f6d58a;--brown:#3e2d18;--cream:#efe2c2;--muted:#9a93c3;--line:#2f2b66;
  --pixel:"VT323","Courier New",monospace;--ui:"Silkscreen","Courier New",monospace}
*{box-sizing:border-box}
html,body{margin:0;background:var(--night);color:var(--ink);font:21px/1.4 var(--pixel)}
body{background:radial-gradient(ellipse at 50% -10%,#2a2470 0,var(--night) 60%) fixed}
a{color:var(--gold)}
.wrap{max-width:1040px;margin:0 auto;padding:0 16px 48px}
nav.top{display:flex;flex-wrap:wrap;gap:6px 18px;align-items:center;justify-content:space-between;padding:14px 0 18px}
nav.top .brand{font:15px var(--ui);color:var(--gold);text-decoration:none;letter-spacing:.06em}
nav.top ul{display:flex;flex-wrap:wrap;gap:4px 16px;list-style:none;margin:0;padding:0}
nav.top ul a{font:13px var(--ui);color:var(--ink);text-decoration:none;letter-spacing:.06em;padding:4px 2px;border-bottom:2px solid transparent}
nav.top ul a:hover,nav.top ul a[aria-current="page"]{color:var(--gold);border-bottom-color:var(--gold)}
h1{font:24px var(--ui);color:var(--gold);letter-spacing:.06em;margin:10px 0 18px}
h2{font:15px var(--ui);color:var(--gold);letter-spacing:.08em;margin:0 0 10px}
.panel{background:linear-gradient(var(--night2),#100e2a);border:2px solid var(--line);padding:18px 22px;margin-bottom:22px}
.panel p{margin:0 0 .8em}.panel p:last-child{margin-bottom:0}
.key{display:inline-block;text-decoration:none;color:#3a2a14;font:22px/1 var(--ui);letter-spacing:.06em;padding:14px 26px 18px;border-radius:8px;
  background:linear-gradient(#f3e7c6 0,#e4d4a6 60%,#d2bf88 100%);border:2px solid #8a7347;
  box-shadow:inset 0 -6px 0 #b79d62,inset 0 2px 0 #fff8e0,0 4px 0 #4a3a1e,0 8px 18px rgba(0,0,0,.5);transition:transform .06s;cursor:pointer}
.key:hover{background:linear-gradient(#f7edd2 0,#e9dab0 60%,#d8c690 100%)}
.key:active{transform:translateY(3px)}
.key.small{font-size:15px;padding:10px 16px 13px}
.sierra{background:#fff;color:#000;border:4px solid #000;box-shadow:0 0 0 4px #fff,0 0 0 8px #000;padding:18px 22px;margin:8px 8px 26px}
footer{margin-top:30px;text-align:center;color:var(--muted);font-size:18px}
@media (max-width:640px){h1{font-size:19px}nav.top{justify-content:center}}