:root{--bg-deep: #0a2818;--bg-mid: #1f5c3a;--bg-light: #3fb950;--bg-glow: #56d364;--text-main: #e6ffe6;--text-dim: rgba(230, 255, 230, .7);--accent: #3fb950;--accent-hover: #56d364;--accent-warm: #d8b94a;--danger: #ef4444;--panel: rgba(10, 40, 25, .85);--panel-border: rgba(63, 185, 80, .6);--panel-glow: rgba(86, 211, 100, .25)}*{box-sizing:border-box}html,body{margin:0;padding:0;width:100%;height:100%;background:var(--bg-deep);color:var(--text-main);font-family:Segoe UI,system-ui,sans-serif;overflow:hidden;user-select:none}#renderCanvas{position:absolute;inset:0;width:100%;height:100%;outline:none;display:block;touch-action:none}#hud{position:absolute;inset:0;pointer-events:none;z-index:10}#hud .hud-row{position:absolute;pointer-events:auto}#hud .hud-row.top-left{top:20px;left:20px;padding:14px 18px;background:var(--panel);border:1px solid var(--panel-border);border-radius:10px;box-shadow:0 0 24px var(--panel-glow);min-width:240px;font-size:14px;line-height:1.6}#hud .stat-line span{color:var(--accent-glow, var(--bg-light));font-weight:600}#hud .stat-line.timer-line span{font-variant-numeric:tabular-nums}#hud .stat-line.timer-line span.danger,#hud .stat-line span.danger{color:#ef4444}#hud .meter{margin-top:6px;height:6px;background:#3fb9502e;border-radius:3px;overflow:hidden}#hud .meter-fill{height:100%;background:linear-gradient(90deg,var(--bg-light),var(--bg-glow));transform-origin:left center;transition:transform 60ms linear}#hud .meter-fill.danger{background:linear-gradient(90deg,#ef4444,#f87171)}#hud .hud-row.center{top:50%;left:50%;transform:translate(-50%,-50%);min-width:480px;max-width:720px;padding:28px 36px;background:var(--panel);border:1px solid var(--panel-border);border-radius:14px;box-shadow:0 0 32px var(--panel-glow);text-align:center}#hud .hud-row.hidden{display:none!important}#hud .audio-gate{position:fixed;inset:0;display:flex;align-items:center;justify-content:center;background:#04160cc7;backdrop-filter:blur(4px);z-index:1000;cursor:pointer}#hud .audio-gate-card{background:var(--panel);border:1px solid var(--panel-border);border-radius:14px;padding:36px 48px;box-shadow:0 0 48px var(--panel-glow);text-align:center;max-width:480px}#hud .audio-gate-title{font-size:26px;font-weight:700;color:var(--text-main);margin-bottom:8px}#hud .audio-gate-subtitle{font-size:14px;color:var(--text-dim);margin-bottom:18px;line-height:1.4}#hud .audio-gate-cta{display:inline-block;padding:12px 28px;background:var(--accent);color:#0a2818;font-weight:700;font-size:16px;border-radius:10px;box-shadow:0 0 24px var(--panel-glow);animation:audio-gate-pulse 2s ease-in-out infinite}@keyframes audio-gate-pulse{0%,to{transform:scale(1);box-shadow:0 0 24px var(--panel-glow)}50%{transform:scale(1.04);box-shadow:0 0 36px var(--accent-hover)}}#hud .menu-title{font-size:24px;font-weight:700;margin-bottom:4px;display:flex;align-items:center;justify-content:center;gap:10px;color:var(--bg-light);flex-wrap:wrap;line-height:1.25;row-gap:4px}#hud .menu-title-emoji{font-size:28px}#hud .menu-subtitle{font-size:14px;color:var(--text-dim);margin-bottom:20px}#hud .section-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-bottom:12px}#hud .infinite-row{margin-top:16px;padding-top:14px;border-top:1px dashed rgba(63,185,80,.35)}#hud .infinite-tile{width:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;padding:14px 22px;background:linear-gradient(135deg,#d8b94a2e,#1f5c3a66);border:1px solid rgba(216,185,74,.55);border-radius:10px;color:var(--text-main);font-family:inherit;cursor:pointer;transition:all .15s ease-out}#hud .infinite-tile:hover{background:linear-gradient(135deg,#d8b94a52,#1f5c3a99);border-color:var(--accent-warm);transform:translateY(-2px);box-shadow:0 0 18px #d8b94a66}#hud .infinite-name{font-size:19px;font-weight:700;color:var(--accent-warm)}#hud .infinite-hint{font-size:13px;font-weight:400;color:var(--text-dim);text-align:center;line-height:1.35}#hud .section-tile{background:linear-gradient(135deg,#3fb9502e,#1f5c3a66);border:1px solid var(--panel-border);border-radius:10px;padding:22px 18px;color:var(--text-main);font-family:inherit;font-size:18px;font-weight:600;cursor:pointer;transition:all .15s ease-out;text-align:left}#hud .section-tile:hover{background:linear-gradient(135deg,#56d36452,#1f5c3a99);border-color:var(--bg-glow);transform:translateY(-2px);box-shadow:0 0 18px #56d36466}#hud .section-name{font-size:18px;font-weight:600}#hud .difficulty-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:10px;margin-bottom:16px}#hud .difficulty-tile{background:#0a2819b3;border:1px solid var(--panel-border);border-radius:8px;padding:14px 6px;color:var(--text-main);cursor:pointer;transition:all .15s;font-family:inherit}#hud .difficulty-tile:hover{background:#3fb95040;border-color:var(--bg-glow);transform:translateY(-2px)}#hud .lvl-num{font-size:22px;font-weight:700;color:var(--bg-glow)}#hud .lvl-meta{font-size:12px;color:var(--text-dim);margin-top:2px}#hud .centered-overlay{display:flex;flex-direction:column;gap:10px;align-items:center}#hud .menu-stack{margin-top:12px}#hud .hud-btn{background:linear-gradient(135deg,#3fb95038,#1f5c3a80);border:1px solid var(--panel-border);border-radius:8px;padding:12px 24px;color:var(--text-main);cursor:pointer;font-family:inherit;font-size:16px;font-weight:600;min-width:180px;transition:all .15s}#hud .hud-btn:hover{background:linear-gradient(135deg,#56d3646b,#1f5c3ab3);border-color:var(--bg-glow);transform:translateY(-1px);box-shadow:0 0 12px #56d36459}#hud .hud-btn.primary{background:linear-gradient(135deg,var(--bg-light),var(--bg-glow));color:var(--bg-deep);border-color:var(--bg-glow)}#hud .hud-btn.primary:hover{filter:brightness(1.15)}#hud .mode-btn{display:flex;flex-direction:column;align-items:flex-start;text-align:left;min-width:280px;padding:16px 22px}#hud .mode-label{font-size:22px;font-weight:700;color:var(--bg-glow)}#hud .mode-hint{font-size:13px;color:var(--text-dim);font-weight:400;margin-top:4px}#hud .back-btn{margin-top:14px;background:transparent;border:1px solid rgba(63,185,80,.3);color:var(--text-dim);font-size:14px;padding:8px 18px}#hud .back-btn:hover{background:#3fb9501a;color:var(--text-main)}#hud .overlay-title{font-size:32px;font-weight:700;margin-bottom:14px}#hud .overlay-title.win{color:var(--bg-glow)}#hud .overlay-title.lose{color:var(--accent-warm)}#hud .overlay-stats{font-size:15px;line-height:1.8;color:var(--text-main);margin-bottom:18px}#hud .overlay-stats strong{color:var(--bg-glow);font-size:18px}