*{box-sizing:border-box}:root{color-scheme:dark;--panel:rgba(16,31,63,.86);--panel2:rgba(23,44,87,.92);--line:rgba(148,163,184,.3);--text:#e2e8f0;--muted:#9fb3d1;--accent:#22d3ee}html,body{margin:0;min-height:100%}body{background:radial-gradient(circle at 20% 10%,rgba(34,211,238,.2),transparent 30%),radial-gradient(circle at 90% 0%,rgba(59,130,246,.18),transparent 28%),linear-gradient(145deg,#061024,#101f3f 58%,#081223);color:var(--text);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}.wrap{width:min(900px,calc(100vw - 24px));margin:0 auto;padding:12px 0 18px}.top{display:flex;justify-content:space-between;align-items:flex-start;gap:10px;padding:14px 16px;border:1px solid var(--line);border-radius:18px 18px 10px 10px;background:var(--panel);backdrop-filter:blur(14px)}.top h1{margin:0;font-size:clamp(1.4rem,3vw,2.25rem)}.top p{margin:6px 0 0;color:var(--muted);font-size:.92rem;font-weight:700}button{border:0;cursor:pointer;font-weight:850;transition:transform 140ms ease,opacity 140ms ease}button:active{transform:translateY(1px) scale(.99)}#restartBtn{border-radius:12px;background:linear-gradient(135deg,#06b6d4,#2563eb);color:#fff;padding:10px 15px}.hud{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;margin:10px 0}.chip{display:flex;justify-content:space-between;align-items:center;border:1px solid var(--line);border-radius:12px;padding:9px 11px;background:linear-gradient(180deg,var(--panel),var(--panel2))}.chip span{color:var(--muted);font-weight:800}.stage-shell{overflow:hidden;border:1px solid var(--line);border-radius:16px;background:#061024;box-shadow:0 24px 80px rgba(0,0,0,.35)}#game-stage{width:100%;aspect-ratio:5/3;min-height:320px}#game-stage canvas{display:block;width:100%;height:100%}.tip{margin:10px 0 8px;color:var(--muted);font-size:.9rem;text-align:center;font-weight:700}.mobile-controls{display:none;grid-template-columns:1fr 1fr;gap:10px}.mobile-controls button{border:1px solid rgba(148,163,184,.35);border-radius:12px;background:rgba(15,23,42,.78);color:var(--text);padding:12px}@media(max-width:700px){.top{flex-direction:column;align-items:stretch}.hud{grid-template-columns:1fr}#restartBtn{width:100%}.mobile-controls{display:grid}.wrap{width:min(100vw - 16px,640px)}}