:root{--bg:#0b1220;--panel:#0f172a;--line:#334155;--txt:#e5e7eb;--mut:#94a3b8;--btn:#2563eb}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--txt);font-family:system-ui,Segoe UI,Arial,sans-serif}
a{color:#93c5fd;text-decoration:none}
a:hover{text-decoration:underline}
.site-header,.site-footer{display:flex;justify-content:space-between;align-items:center;padding:12px 16px;background:#0b1220;border-bottom:1px solid var(--line)}
.site-footer{border-top:1px solid var(--line);border-bottom:none}
.brand{font-weight:700}
.nav{display:flex;gap:12px;align-items:center}
.nav .active{color:#fff}
.container{max-width:1100px;margin:0 auto;padding:16px}
.hero{display:flex;flex-direction:column;gap:8px;margin-bottom:12px}
.controls{display:flex;gap:8px;align-items:center}
select,.btn{background:#0b1220;border:1px solid var(--line);color:#fff;border-radius:8px;padding:6px 10px}
.btn{background:var(--btn);border:none}
.muted{opacity:.55;cursor:not-allowed}
.gamebox{margin:8px 0 16px}
iframe#gameframe{width:100%;height:760px;border:1px solid var(--line);border-radius:12px;background:#000}
details{background:#0f172a;border:1px dashed var(--line);border-radius:8px;padding:10px}
@media (max-width:768px){iframe#gameframe{height:640px}}