:root{
  --bg:#0b0b0b; --card:#111; --b:#242424; --txt:#f5f5f5; --muted:#a5a5a5;
  --gold:#f0d37a;
}
*{box-sizing:border-box}
body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial;background:var(--bg);color:var(--txt)}
a{color:var(--gold);text-decoration:none}
.shell{max-width:720px;margin:40px auto;padding:0 16px}
.container{max-width:980px;margin:18px auto;padding:0 14px}
.topbar{position:sticky;top:0;z-index:10;background:#0f0f0f;border-bottom:1px solid var(--b);padding:12px 14px;display:flex;align-items:center;justify-content:space-between}
.brand{font-weight:900;letter-spacing:.5px}
.card{background:var(--card);border:1px solid var(--b);border-radius:16px;padding:14px;margin:14px 0}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.grid3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:10px}
@media(max-width:860px){.grid3{grid-template-columns:1fr}.grid2{grid-template-columns:1fr}}
label{display:block;font-size:12px;color:var(--muted);margin:6px 0}
input{width:100%;padding:10px 12px;border-radius:12px;border:1px solid var(--b);background:#0f0f0f;color:var(--txt)}
.row{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin-top:10px}
.btn{padding:10px 12px;border-radius:12px;border:1px solid #3a3a3a;background:#1a1a1a;color:var(--txt);cursor:pointer;font-weight:700}
.btn:hover{border-color:var(--gold)}
.btn.small{padding:8px 10px;border-radius:10px;font-size:13px}
.btn.ghost{background:transparent}
.pill{border:1px solid var(--b);padding:8px 10px;border-radius:999px;background:#0f0f0f;color:var(--muted)}
.muted{color:var(--muted)}
.small{font-size:12px}
.list{display:grid;gap:10px;margin-top:12px}
.item{border:1px solid var(--b);border-radius:14px;padding:12px;background:#0f0f0f}
.item h3{margin:0 0 6px 0}
.msg{margin-top:10px;color:var(--gold)}
code{background:#0f0f0f;padding:2px 6px;border-radius:8px;border:1px solid var(--b)}