:root{--bg:#050510;--bg2:#0a0a1a;--bg3:#101020;--text:#fff;--text2:#9ca3af;--text3:#6b7280;--accent:#3b82f6;--accent-glow:rgba(59,130,246,0.3);--purple:#8b5cf6;--blue:#3b82f6;--red:#ef4444;--amber:#f59e0b;--border:rgba(255,255,255,0.08);--glass:rgba(5,5,16,0.88);--glass-border:rgba(255,255,255,0.1)}
[data-theme="neon"]{--bg:#0a0014;--accent:#f472b6;--accent-glow:rgba(244,114,182,0.3);--purple:#c084fc;--blue:#22d3ee}
[data-theme="underwater"]{--bg:#001a20;--accent:#06b6d4;--accent-glow:rgba(6,182,212,0.3);--purple:#2dd4bf;--blue:#38bdf8}
[data-theme="sunset"]{--bg:#1a0808;--accent:#f97316;--accent-glow:rgba(249,115,22,0.3);--purple:#f43f5e;--blue:#fb923c}
*{margin:0;padding:0;box-sizing:border-box}body{background:var(--bg);overflow:hidden;font-family:'Inter',sans-serif;color:var(--text);user-select:none}canvas{display:block;position:fixed;top:0;left:0;z-index:1}
.screen{position:fixed;inset:0;z-index:100;display:flex;align-items:center;justify-content:center}.screen.hide{display:none}
.menu-bg{position:absolute;inset:0;background:var(--bg)}.menu-bg::after{content:'';position:absolute;inset:0;background:radial-gradient(circle at 50% 30%,rgba(59,130,246,0.1) 0%,transparent 50%),radial-gradient(circle at 20% 70%,rgba(139,92,246,0.06) 0%,transparent 50%);animation:bgP 8s ease-in-out infinite alternate}@keyframes bgP{to{opacity:0.5}}
.menu-content{position:relative;z-index:2;text-align:center;max-width:480px;width:100%;padding:40px 20px}
.game-title{font-size:clamp(56px,10vw,88px);font-weight:900;background:linear-gradient(135deg,var(--accent),#93c5fd,var(--purple));-webkit-background-clip:text;-webkit-text-fill-color:transparent;line-height:1;margin-bottom:8px;animation:tg 3s ease-in-out infinite alternate}@keyframes tg{to{filter:brightness(1.2)}}
.tagline{color:var(--text2);font-size:18px;font-weight:500;letter-spacing:4px;text-transform:uppercase;margin-bottom:48px}
.menu-buttons{display:flex;flex-direction:column;gap:12px;margin-bottom:40px}
.btn{border:none;padding:16px 32px;border-radius:14px;font-size:17px;font-weight:700;cursor:pointer;font-family:inherit;transition:all .3s;display:block;width:100%}
.btn.primary{background:var(--accent);color:#fff;box-shadow:0 0 30px var(--accent-glow)}.btn.primary:hover{transform:translateY(-2px);box-shadow:0 8px 40px var(--accent-glow);filter:brightness(1.1)}
.btn.secondary{background:var(--bg3);color:var(--text);border:1px solid var(--border)}.btn.secondary:hover{background:rgba(255,255,255,0.08);border-color:var(--accent)}
.btn.ghost{background:transparent;color:var(--text2);border:1px solid var(--border)}.btn.ghost:hover{color:var(--text);border-color:var(--text2)}
.menu-stats{display:flex;justify-content:center;gap:40px}.mstat{display:flex;flex-direction:column;align-items:center}.mstat-val{font-size:28px;font-weight:900;color:var(--accent)}.mstat-lbl{font-size:12px;color:var(--text3);text-transform:uppercase;letter-spacing:1px;font-weight:600}
.panel{background:var(--glass);backdrop-filter:blur(30px);-webkit-backdrop-filter:blur(30px);border:1px solid var(--glass-border);border-radius:24px;padding:40px;max-width:600px;width:90%;max-height:85vh;overflow-y:auto}.panel h2{font-size:28px;font-weight:800;margin-bottom:24px;text-align:center}
.mode-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:20px}
.mode-card{background:var(--bg3);border:2px solid var(--border);border-radius:16px;padding:20px;text-align:center;cursor:pointer;transition:all .3s}.mode-card:hover{border-color:var(--accent);transform:translateY(-2px);box-shadow:0 8px 30px var(--accent-glow)}.mode-card.selected{border-color:var(--accent);background:rgba(59,130,246,0.1)}
.mode-icon{font-size:36px;margin-bottom:8px}.mode-card h3{font-size:16px;font-weight:700;margin-bottom:4px}.mode-card p{font-size:12px;color:var(--text2);line-height:1.4}
.how-panel{max-width:650px}.how-steps{display:flex;flex-direction:column;gap:16px;margin-bottom:24px}
.how-step{display:flex;gap:16px;align-items:flex-start;padding:14px;background:var(--bg3);border-radius:12px}.how-num{width:32px;height:32px;border-radius:50%;background:var(--accent);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:14px;flex-shrink:0}
.how-step h4{font-size:15px;font-weight:700;margin-bottom:4px}.how-step p{font-size:13px;color:var(--text2);line-height:1.5}
.shortcut-grid{margin-bottom:20px}.shortcut-grid h3{font-size:16px;font-weight:700;margin-bottom:12px}.shortcut{font-size:13px;color:var(--text2);margin-bottom:6px}
kbd{background:var(--bg3);border:1px solid var(--border);padding:3px 8px;border-radius:6px;font-family:inherit;font-weight:700;font-size:12px;color:var(--accent);margin-right:4px}
.setting-row{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:20px}.setting-row label{font-weight:600;font-size:14px}
.setting-row select{background:var(--bg);color:var(--text);border:1px solid var(--border);padding:10px 14px;border-radius:10px;font-size:14px;font-family:inherit}.setting-row select option{background:var(--bg)}
input[type="range"]{-webkit-appearance:none;background:var(--bg3);height:6px;border-radius:3px;outline:none;flex:1;max-width:200px}input[type="range"]::-webkit-slider-thumb{-webkit-appearance:none;width:18px;height:18px;border-radius:50%;background:var(--accent);cursor:pointer}
#hud{position:fixed;top:0;left:0;right:0;z-index:20;padding:12px 20px;display:flex;justify-content:space-between;align-items:center;pointer-events:none;background:linear-gradient(180deg,rgba(0,0,0,0.7),transparent)}#hud.hide{display:none}
.hud-left,.hud-right{display:flex;gap:20px}.hud-item{display:flex;flex-direction:column;align-items:center}.hlbl{font-size:10px;color:var(--text3);text-transform:uppercase;letter-spacing:1.5px;font-weight:700}.hval{font-size:26px;font-weight:900}.hud-center{flex:1;display:flex;justify-content:center;gap:10px;align-items:center}
.powerup-indicator{background:rgba(59,130,246,0.2);border:1px solid var(--accent);padding:6px 14px;border-radius:12px;display:flex;align-items:center;gap:6px;animation:pupPop .3s ease-out}.powerup-indicator.hide{display:none}
#pupIcon{font-size:18px}#pupName{font-size:13px;font-weight:700;color:var(--accent)}
.near-miss{color:#f59e0b;font-size:14px;font-weight:800;animation:nmPop .5s ease-out forwards}.near-miss.hide{display:none}
@keyframes pupPop{from{transform:scale(0.8);opacity:0}to{transform:scale(1);opacity:1}}@keyframes nmPop{from{transform:translateY(0);opacity:1}to{transform:translateY(-20px);opacity:0}}
.pause-panel{text-align:center;max-width:320px}.pause-panel .btn{margin-bottom:10px}
.over-panel{text-align:center;max-width:400px}.over-label{font-size:18px;color:var(--text2);font-weight:600;text-transform:uppercase;letter-spacing:3px}
.over-score{font-size:72px;font-weight:900;color:var(--accent);margin:10px 0;text-shadow:0 0 40px var(--accent-glow)}
.over-stats{display:flex;justify-content:center;gap:24px;margin:16px 0 20px}.ostat{display:flex;flex-direction:column;align-items:center;font-size:12px;color:var(--text3)}.ostat span{font-size:22px;font-weight:800;color:var(--text)}
.over-best{color:var(--text3);font-size:14px;margin-bottom:24px}.over-btns .btn{margin-bottom:8px}
.panel::-webkit-scrollbar{width:4px}.panel::-webkit-scrollbar-thumb{background:var(--border);border-radius:2px}
@media(max-width:500px){.mode-grid{grid-template-columns:1fr}.game-title{font-size:48px}.panel{padding:24px}}