*{box-sizing:border-box}:root{color-scheme:dark;--panel:rgba(14,46,79,.88);--panel2:rgba(15,43,71,.94);--line:rgba(226,232,240,.2);--text:#f8fafc;--muted:#b7c4d8;--cyan:#06b6d4;--orange:#f97316}html,body{margin:0;min-height:100%}body{background:radial-gradient(circle at 15% 10%,rgba(56,189,248,.22),transparent 35%),radial-gradient(circle at 85% 18%,rgba(59,130,246,.22),transparent 34%),linear-gradient(180deg,#0a3b66,#062239);color:var(--text);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}.shell{width:min(980px,calc(100vw - 24px));margin:0 auto;padding:12px 0 18px}.topbar{display:flex;justify-content:space-between;align-items:flex-start;gap:12px;padding:14px 16px;border:1px solid var(--line);border-radius:18px 18px 10px 10px;background:linear-gradient(135deg,var(--panel),rgba(6,34,57,.88));backdrop-filter:blur(14px)}.topbar h1{margin:0;font-size:clamp(1.35rem,3vw,2.3rem)}.topbar p{margin:6px 0 0;color:var(--muted);font-size:.92rem;font-weight:750}.hud{margin:10px 0;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px}.chip{border:1px solid var(--line);border-radius:12px;padding:9px 11px;display:flex;justify-content:space-between;gap:8px;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:#0b2238;box-shadow:0 24px 80px rgba(0,0,0,.32)}#game-stage{width:100%;aspect-ratio:16/9;min-height:320px;touch-action:none}#game-stage canvas{display:block;width:100%;height:100%}.lane-controls{margin-top:10px;display:none;grid-template-columns:1fr 1fr;gap:10px}.reward-bar{margin-top:10px;display:flex;flex-wrap:wrap;align-items:center;gap:10px}.reward-note{margin:0;color:var(--muted);font-size:.88rem;font-weight:700}.tip{margin:8px 0 0;color:var(--muted);font-size:.88rem;text-align:center;font-weight:750}button{border:0;border-radius:12px;padding:10px 14px;cursor:pointer;font:inherit;font-weight:850;transition:transform 140ms ease,opacity 140ms ease}button:active{transform:translateY(1px) scale(.99)}button:disabled{opacity:.48;cursor:not-allowed}#restartBtn{background:linear-gradient(135deg,#f97316,#ea580c);color:#fff}.lane-controls button{background:linear-gradient(135deg,#06b6d4,#0284c7);color:#fff}#rewardBtn{background:linear-gradient(135deg,#0ea5e9,#2563eb);color:#fff}@media(max-width:760px){.hud{grid-template-columns:repeat(2,minmax(0,1fr))}.lane-controls{display:grid}.topbar{flex-direction:column;align-items:stretch}#restartBtn{width:100%}}