:root{
  --bg:#0b0f17;--card:#121826;--text:#e6edf3;--muted:#9aa4b2;--primary:#6ea8fe;--accent:#22d3ee;--border:#233044
}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--text);font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Cantarell,Noto Sans,Arial}
.container{max-width:960px;margin:0 auto;padding:16px}
@media (min-width: 640px){.container{padding:24px}}
.app-header{position:sticky;top:0;z-index:10;border-bottom:1px solid var(--border);background:linear-gradient(180deg,rgba(0,0,0,.35),rgba(0,0,0,.12));backdrop-filter:blur(6px)}
.header-row{display:flex;align-items:center;gap:16px}
.back-link{margin-right:12px}
.subtitle{margin:8px 0 0;color:var(--muted)}
.card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:16px;margin:12px 0}
@media (min-width: 640px){.card{padding:20px;margin:16px 0}}
.card h2{margin:0 0 12px;font-size:18px}
.btn{appearance:none;border:1px solid var(--border);background:#0f1624;color:var(--text);padding:10px 14px;border-radius:999px;text-decoration:none;transition:all .15s ease;cursor:pointer}
.btn:hover{transform:translateY(-1px);box-shadow:0 6px 18px rgba(0,0,0,.25)}
.chip{display:inline-flex;align-items:center;gap:6px;padding:6px 10px;border-radius:999px;background:#0f1624;border:1px solid var(--border);color:var(--muted);font-size:12px;margin-right:8px}
.chip strong{color:var(--text)}
.hud{display:flex;flex-wrap:wrap;gap:6px;margin:10px 0}
@media (min-width: 640px){.hud{gap:8px}}
.map-frame{display:flex;justify-content:center;align-items:center;background:var(--card);border:1px solid var(--border);border-radius:12px;padding:12px}
#canvas-host{display:flex;justify-content:center;align-items:center;width:100%}
#canvas-host canvas{max-width:100%;width:100%;aspect-ratio:1/1;object-fit:contain;display:block}