*{margin:0;padding:0;box-sizing:border-box}html,body{width:100%;height:100%;overflow:hidden;background:#000;font-family:Pretendard,Apple SD Gothic Neo,Malgun Gothic,sans-serif;-webkit-user-select:none;user-select:none}#app{position:fixed;top:0;right:0;bottom:0;left:0}#app canvas{display:block}#blocker{position:fixed;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center;background:#0a141ebf;z-index:50}#blocker.hidden{display:none}#instructions{text-align:center;color:#fff;background:#141e2de6;padding:32px 40px;border-radius:16px;max-width:480px}#instructions h1{font-size:28px;margin-bottom:8px}#instructions p{font-size:15px;opacity:.85;margin-bottom:18px}#start-btn{font-size:16px;padding:10px 24px;border-radius:999px;border:none;background:#4fc3f7;color:#05232f;font-weight:700;cursor:pointer;margin-bottom:16px}#start-btn:hover{background:#81d4fa}.controls-help{text-align:left;font-size:13px;line-height:1.8;opacity:.8;border-top:1px solid rgba(255,255,255,.2);padding-top:12px}#crosshair{position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);color:#fff;font-size:18px;text-shadow:0 0 3px #000,0 0 3px #000;z-index:20;pointer-events:none}#tooltip{position:fixed;top:calc(50% + 22px);left:50%;transform:translate(-50%);color:#fff;background:#0000008c;padding:4px 10px;border-radius:6px;font-size:13px;z-index:20;pointer-events:none;white-space:nowrap;display:none}#step-banner{position:fixed;top:18px;left:50%;transform:translate(-50%);background:#0a141ed1;color:#fff;padding:10px 22px;border-radius:12px;z-index:20;text-align:center;min-width:320px;max-width:70vw;border:1px solid rgba(79,195,247,.5)}#step-index{font-size:12px;color:#4fc3f7;font-weight:700;letter-spacing:.05em;margin-bottom:2px}#step-text{font-size:15px;line-height:1.4}#checklist{position:fixed;top:18px;right:18px;background:#0a141ebf;color:#fff;padding:10px 14px;border-radius:10px;font-size:12px;line-height:1.9;z-index:20;max-width:220px}#checklist .done{color:#80e27e}#checklist .current{color:#4fc3f7;font-weight:700}#burn-flash{position:fixed;top:0;right:0;bottom:0;left:0;background:radial-gradient(circle,#ff460000 35%,#ff14008c);opacity:0;pointer-events:none;z-index:40;transition:opacity .12s ease}#burn-flash.show{opacity:1}#toast{position:fixed;bottom:40px;left:50%;transform:translate(-50%);background:#ffc107f2;color:#2b1d00;padding:10px 20px;border-radius:10px;font-size:14px;font-weight:600;z-index:25;opacity:0;transition:opacity .25s ease;pointer-events:none;max-width:60vw;text-align:center}#toast.show{opacity:1}#end-screen{position:fixed;top:0;right:0;bottom:0;left:0;background:#050f19e0;display:flex;align-items:center;justify-content:center;z-index:60}#end-screen.hidden{display:none}.end-card{background:#10263a;color:#fff;padding:40px 50px;border-radius:18px;text-align:center;border:1px solid rgba(79,195,247,.5)}.end-card h1{font-size:30px;margin-bottom:10px;color:#4fc3f7}.end-card p{font-size:15px;opacity:.9;margin-bottom:4px}.end-card .sub{opacity:.6;margin-top:10px}