:root{--bg:#0f0f14;--text:#f2f3f5;--muted:#aab0bd;--border:#262838;--accent:#6c8cff}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--text);font:16px/1.6 system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Cantarell,Noto Sans,sans-serif;display:grid;place-items:center;min-height:100vh}
.wrap{display:grid;gap:12px;padding:16px;width:min(900px,92vw)}
.hud{display:flex;gap:12px;align-items:center}
.label{color:var(--muted)}
.boards{display:flex;gap:16px;align-items:flex-start}
#board{background:#10121a;border:1px solid var(--border);border-radius:12px}
#next{background:#10121a;border:1px solid var(--border);border-radius:12px}
button,.back{padding:8px 12px;border-radius:10px;border:1px solid var(--border);background:#0c0d12;color:var(--text);text-decoration:none}
button:hover,.back:hover{border-color:#3a3e58}