:root{
  --bg:#04060b; --panel:#0a0f1a; --line:#152238;
  --cyan:#22d3ee; --mag:#e879f9; --grn:#4ade80; --gold:#fbbf24; --red:#fb7185; --acc:#ef4444;
  --txt:#dbe7f4; --dim:#5b7290;
}
*{box-sizing:border-box; -webkit-tap-highlight-color:transparent;}
html,body{height:100%;}
body{
  margin:0; background:var(--bg); color:var(--txt);
  font-family:'Rajdhani',sans-serif; overflow:hidden;
  display:flex; flex-direction:column; touch-action:none;
  user-select:none; -webkit-user-select:none; -webkit-touch-callout:none;
}
.hidden{display:none !important;}
.gx-header{
  display:flex; align-items:center; justify-content:space-between;
  padding:10px 16px; border-bottom:1px solid var(--line);
  background:rgba(4,6,11,.9); z-index:20;
}
.gx-back{
  display:inline-flex; align-items:center; gap:6px;
  font-family:'Orbitron',sans-serif; font-size:11px; font-weight:700;
  letter-spacing:.14em; color:var(--acc); text-decoration:none;
  padding:8px 12px; border:1px solid #7f1d1d; border-radius:6px;
  background:rgba(239,68,68,.06); transition:.18s; min-height:36px;
}
.gx-back:hover{background:rgba(239,68,68,.16); box-shadow:0 0 18px rgba(239,68,68,.35);}
.gx-brand{font-family:'Orbitron',sans-serif; font-weight:900; font-size:14px; letter-spacing:.18em; color:var(--txt); text-decoration:none;}
.gx-brand b{color:var(--cyan); font-weight:900;}
.gx-brand i{font-style:normal; color:var(--mag);}
main{flex:1; display:flex; flex-direction:column; min-height:0; padding:6px 10px; gap:6px;}
.hud{display:flex; align-items:center; gap:16px; flex-wrap:wrap; justify-content:center;}
.stat{display:flex; flex-direction:column; align-items:center; min-width:52px;}
.stat .k{font-size:10px; letter-spacing:.26em; color:var(--dim); font-weight:600;}
.stat .v{
  font-family:'Orbitron',sans-serif; font-size:18px; font-weight:700; color:var(--txt); line-height:1.15;
  text-shadow:0 0 12px rgba(239,68,68,.45);
}
.stat.best .v{color:var(--gold); text-shadow:0 0 12px rgba(251,191,36,.5);}
.stat.lvl .v{color:var(--acc); text-shadow:0 0 12px rgba(239,68,68,.65);}
.stat.lives .v{color:var(--red); font-size:16px; letter-spacing:.14em; text-shadow:0 0 12px rgba(251,113,133,.6);}
.stat.time .v.low{color:var(--red); animation:pulse .5s infinite alternate;}
@keyframes pulse{from{opacity:.55}to{opacity:1}}
.chips{display:flex; gap:6px; flex-wrap:wrap; justify-content:center;}
.chip{
  font-family:'Orbitron',sans-serif; font-size:9px; font-weight:700; letter-spacing:.14em;
  padding:4px 10px; border-radius:999px; border:1px solid; display:inline-flex; align-items:center; gap:6px;
}
.chip b{font-size:10px; font-weight:900;}
.c-slow{color:#22d3ee; border-color:rgba(34,211,238,.55); background:rgba(34,211,238,.08); text-shadow:0 0 8px rgba(34,211,238,.6);}
.c-frenzy{color:#fbbf24; border-color:rgba(251,191,36,.55); background:rgba(251,191,36,.08); text-shadow:0 0 8px rgba(251,191,36,.6);}
.c-double{color:#4ade80; border-color:rgba(74,222,128,.55); background:rgba(74,222,128,.08); text-shadow:0 0 8px rgba(74,222,128,.6);}
.c-blade{color:#fb7185; border-color:rgba(251,113,133,.55); background:rgba(251,113,133,.08); text-shadow:0 0 8px rgba(251,113,133,.6);}
.icon-btn{
  background:none; border:1px solid var(--line); color:var(--dim); border-radius:6px;
  width:44px; height:44px; cursor:pointer; font-size:16px; line-height:1; transition:.18s;
  display:flex; align-items:center; justify-content:center;
}
.icon-btn:hover{color:var(--acc); border-color:var(--acc); box-shadow:0 0 14px rgba(239,68,68,.3);}
.stage{
  position:relative; flex:1; min-height:0; line-height:0;
  border:1px solid var(--line); border-radius:10px; overflow:hidden;
  background:#05070d; box-shadow:0 0 60px rgba(239,68,68,.07), inset 0 0 80px rgba(0,0,0,.5);
}
canvas#game{position:absolute; inset:0; width:100%; height:100%; display:block; touch-action:none; cursor:crosshair;}
.banner{
  position:absolute; top:14%; left:50%; transform:translateX(-50%);
  font-family:'Orbitron',sans-serif; font-weight:900; font-size:clamp(18px,4.6vw,28px);
  letter-spacing:.24em; color:var(--txt); text-align:center; line-height:1.5;
  text-shadow:0 0 24px currentColor; pointer-events:none; z-index:9; white-space:nowrap;
  animation:bIn .5s cubic-bezier(.2,1.4,.4,1) both;
}
.banner small{display:block; font-size:11px; letter-spacing:.4em; color:var(--dim); font-weight:600;}
.banner.out{animation:bOut .4s ease-in both;}
@keyframes bIn{from{opacity:0; transform:translateX(-50%) scale(.7)}to{opacity:1; transform:translateX(-50%) scale(1)}}
@keyframes bOut{from{opacity:1}to{opacity:0; transform:translateX(-50%) translateY(-14px)}}
.toast{
  position:absolute; bottom:12%; left:50%; transform:translateX(-50%);
  background:rgba(4,6,11,.92); border:1px solid var(--gold); border-radius:8px;
  padding:8px 18px; font-family:'Orbitron',sans-serif; font-size:11px; font-weight:700;
  letter-spacing:.2em; color:var(--gold); text-shadow:0 0 12px rgba(251,191,36,.7);
  box-shadow:0 0 30px rgba(251,191,36,.25); z-index:9; pointer-events:none; white-space:nowrap;
  animation:tIn .3s ease both;
}
.toast.out{animation:tOut .4s ease-in both;}
@keyframes tIn{from{opacity:0; transform:translateX(-50%) translateY(12px)}to{opacity:1; transform:translateX(-50%) translateY(0)}}
@keyframes tOut{from{opacity:1}to{opacity:0; transform:translateX(-50%) translateY(-10px)}}
.overlay{
  position:absolute; inset:0; display:flex; align-items:flex-start; justify-content:center;
  background:rgba(4,6,11,.86); backdrop-filter:blur(4px); border-radius:10px; z-index:10; overflow-y:auto;
}
.overlay.hidden{display:none;}
.panel{text-align:center; padding:20px 22px; max-width:640px; width:100%; margin:auto;}
.title{
  font-family:'Orbitron',sans-serif; font-weight:900; letter-spacing:.1em;
  font-size:clamp(24px,5.4vw,40px); margin:0 0 4px;
  color:var(--acc); text-shadow:0 0 24px rgba(239,68,68,.65), 0 0 60px rgba(239,68,68,.3);
}
.title .alt{color:var(--cyan); text-shadow:0 0 24px rgba(34,211,238,.6);}
.subtitle{color:var(--dim); letter-spacing:.3em; font-size:11px; font-weight:600; margin-bottom:14px;}
.desc{color:var(--txt); font-size:15px; line-height:1.5; margin:0 0 14px; opacity:.9;}
.desc b{color:var(--grn);}
.legend{display:flex; gap:12px; justify-content:center; flex-wrap:wrap; font-size:13px; font-weight:600; margin-bottom:14px; letter-spacing:.06em;}
.legend i{font-style:normal;}
.lg-1{color:#22d3ee;} .lg-2{color:#4ade80;} .lg-3{color:#a78bfa;} .lg-4{color:#fb7185;} .lg-5{color:#f472b6;}
.lg-g{color:#fbbf24; text-shadow:0 0 10px rgba(251,191,36,.5);}
.lg-s{color:#60a5fa;} .lg-x{color:#ef4444; text-shadow:0 0 10px rgba(239,68,68,.5);}
.mode-row{display:flex; gap:10px; justify-content:center; margin:2px 0 16px; flex-wrap:wrap;}
.mode-btn{
  cursor:pointer; border:1px solid var(--line); background:rgba(10,15,26,.6); border-radius:10px;
  padding:10px 18px; min-height:44px; min-width:180px; color:var(--dim); font-family:'Rajdhani',sans-serif;
  display:flex; flex-direction:column; gap:2px; align-items:center; transition:.18s;
}
.mode-btn:hover{border-color:var(--dim);}
.mode-btn .m-name{font-family:'Orbitron',sans-serif; font-size:13px; font-weight:700; letter-spacing:.18em; color:var(--txt);}
.mode-btn .m-desc{font-size:12px; letter-spacing:.04em;}
.mode-btn .m-best{font-size:11px; letter-spacing:.14em; color:var(--gold); font-weight:700;}
.mode-btn.sel{
  border-color:var(--acc);
  box-shadow:0 0 18px rgba(239,68,68,.35), inset 0 0 24px rgba(239,68,68,.07);
}
.mode-btn.sel .m-name{color:var(--acc); text-shadow:0 0 10px rgba(239,68,68,.6);}
.btn{
  font-family:'Orbitron',sans-serif; font-size:14px; font-weight:700; letter-spacing:.2em;
  padding:13px 38px; min-height:46px; cursor:pointer; border-radius:8px; border:1px solid var(--acc);
  background:rgba(239,68,68,.1); color:var(--acc); transition:.18s;
  text-shadow:0 0 10px rgba(239,68,68,.6);
}
.btn:hover{background:rgba(239,68,68,.22); box-shadow:0 0 30px rgba(239,68,68,.5); transform:translateY(-1px);}
.btn.ghost{border-color:var(--line); color:var(--dim); background:none; text-shadow:none; font-size:11px; padding:12px 20px; min-height:44px;}
.btn.ghost:hover{color:var(--txt); border-color:var(--dim); box-shadow:none;}
.career{display:flex; gap:16px; justify-content:center; color:var(--dim); font-size:12.5px; letter-spacing:.08em; margin-top:14px; font-weight:600; flex-wrap:wrap;}
.career b{color:var(--txt);}
.keys{color:var(--dim); font-size:13px; letter-spacing:.08em; margin-top:14px; line-height:1.9;}
.keys kbd{
  font-family:'Orbitron',sans-serif; font-size:10px; padding:2px 7px; margin:0 2px;
  border:1px solid var(--line); border-bottom-width:2px; border-radius:4px; color:var(--txt); background:#0a0f1a;
}
.final-score{font-family:'Orbitron',sans-serif; font-size:42px; font-weight:900; color:var(--txt); margin:6px 0 2px;}
.final-best{color:var(--gold); letter-spacing:.2em; font-size:12px; margin-bottom:10px; font-weight:600;}
.newbest{color:var(--gold); animation:pulse 1s infinite alternate; font-weight:700;}
.run-stats{display:flex; gap:16px; justify-content:center; color:var(--dim); font-size:13px; letter-spacing:.08em; margin-bottom:16px; flex-wrap:wrap;}
.run-stats b{color:var(--txt);}
footer{padding:8px; text-align:center; color:var(--dim); font-size:11px; letter-spacing:.18em;}
footer a{color:var(--acc); text-decoration:none;}

/* ===== pause menu + settings ===== */
.pmenu{display:flex; flex-direction:column; gap:10px; margin:18px auto 0; max-width:300px;}
.pmenu .btn{width:100%;}
.settings{margin-top:16px; text-align:left; border:1px solid var(--line); border-radius:10px; padding:10px 14px; background:rgba(10,15,26,.55);}
.setrow{display:flex; align-items:center; justify-content:space-between; gap:12px; padding:8px 2px; font-weight:600; letter-spacing:.08em; font-size:14px; color:#9fb0c8;}
.setrow + .setrow{border-top:1px solid rgba(21,34,56,.6);}
.tog{
  font-family:'Orbitron',sans-serif; font-size:10px; font-weight:700; letter-spacing:.14em;
  padding:10px 16px; border-radius:999px; border:1px solid rgba(91,114,144,.5); background:transparent;
  color:var(--dim); cursor:pointer; transition:.15s; min-width:72px; min-height:44px;
}
.tog.on{border-color:#4ade80; color:#4ade80; box-shadow:0 0 12px rgba(74,222,128,.25);}
.setnote{margin:10px 2px 0; font-size:12px; color:var(--dim); font-weight:500; line-height:1.5;}

@media (max-width:600px){
  .hud{gap:10px;}
  .stat{min-width:44px;}
  .stat .v{font-size:14px;}
  .stat .k{font-size:8.5px; letter-spacing:.18em;}
  .chips{gap:4px;}
  .chip{font-size:8px; padding:3px 8px;}
  .career{gap:10px; font-size:11.5px;}
}
@media (max-height:480px){
  .panel{padding:10px 16px;}
  .title{font-size:clamp(20px,7vh,30px); margin-bottom:2px;}
  .subtitle{margin-bottom:8px;}
  .desc{font-size:13px; margin:0 0 10px; line-height:1.35;}
  .legend{font-size:11px; margin-bottom:10px; gap:8px;}
  .mode-row{margin-bottom:10px;}
  .mode-btn{padding:6px 14px; min-width:160px;}
  .mode-btn .m-desc{font-size:11px;}
  .career{font-size:11px; gap:8px; margin-top:8px;}
  .keys{font-size:11px; margin-top:8px; line-height:1.7;}
  .btn{padding:10px 30px;}
  .final-score{font-size:34px;}
  .pmenu{max-width:270px; gap:7px; margin-top:10px;}
  .pmenu .btn{padding:9px 20px; min-height:44px;}
  .setnote{margin-top:6px; font-size:11px;}
}