:root{
  --bg:#07080d;
  --panel:#0d1018;
  --panel2:#111520;
  --line:#252b38;
  --text:#f5f7fb;
  --muted:#737b8c;
  --accent:#7df7d4;
  --accent2:#8da2ff;
  --danger:#ff647c;
}

*{
  box-sizing:border-box;
}

html,body{
  width:100%;
  height:100%;
  margin:0;
  overflow:hidden;
  background:var(--bg);
  color:var(--text);
  font-family:Arial,Helvetica,sans-serif;
}

body{
  user-select:none;
}

canvas{
  position:fixed;
  inset:0;
  width:100%;
  height:100%;
  display:block;
}

button{
  font:inherit;
}

#menu{
  position:fixed;
  inset:0;
  z-index:20;
  display:flex;
  align-items:center;
  justify-content:center;
  background:var(--bg);
}

.menuWrap{
  width:min(760px,90vw);
  text-align:center;
}

.isHidden{
  display:none !important;
}

.screenDialog{
  position:fixed;
  inset:0;
  z-index:30;
  display:flex;
  align-items:center;
  justify-content:center;
  padding:24px;
  background:#0a0c12;
}

.dialogBox{
  width:min(560px,100%);
  max-height:calc(100vh - 32px);
  overflow:auto;
  padding:32px 40px;
  border:1px solid #2b3240;
  background:#0d1018;
  text-align:center;
}

.dialogEyebrow{
  color:#8993a6;
  font-size:10px;
  font-weight:800;
  letter-spacing:.25em;
}

.dialogBox h1{
  margin:14px 0 10px;
  font-size:clamp(22px,5vw,32px);
  letter-spacing:-.03em;
}

.dialogBox p{
  margin:0 auto;
  max-width:460px;
  color:#9aa3b4;
  font-size:13px;
  line-height:1.6;
}

.dialogBox p+p{
  margin-top:12px;
}

.dialogBox .warningAdvice{
  color:#d9dee8;
  font-size:12px;
}

.dialogButton{
  min-width:190px;
  height:48px;
  margin-top:28px;
  border:1px solid #4c5669;
  background:#11151e;
  color:white;
  cursor:pointer;
  font-size:11px;
  font-weight:800;
  letter-spacing:.16em;
}

.dialogButton:hover{
  border-color:var(--accent);
}

.levelSelector{
  display:grid;
  gap:8px;
  margin:38px auto 0;
  text-align:left;
}

.levelCard{
  display:grid;
  grid-template-columns:44px 1fr auto;
  align-items:center;
  gap:14px;
  width:100%;
  padding:13px 15px;
  border:1px solid #252b38;
  background:linear-gradient(#111520,#0d1018);
  color:var(--text);
  cursor:pointer;
  text-align:left;
}

.levelCard:hover,
.levelCard.selected{
  border-color:var(--accent);
  background:#111821;
  box-shadow:inset 0 1px rgba(255,255,255,.04),0 8px 22px rgba(0,0,0,.2);
}

.levelNumber{
  color:#565a69;
  font-size:11px;
  letter-spacing:.12em;
}

.levelSong{
  font-size:13px;
  font-weight:800;
}

.levelArtist{
  margin-top:4px;
  color:#737b8c;
  font-size:10px;
  letter-spacing:.08em;
  text-transform:uppercase;
}

.levelDifficulty{
  color:var(--accent);
  font-size:9px;
  font-weight:800;
  letter-spacing:.1em;
  text-transform:uppercase;
}

.brand{
  font-size:clamp(58px,9vw,112px);
  line-height:.82;
  letter-spacing:-.075em;
  font-weight:900;
}

.brand span{
  color:var(--accent);
}

.subtitle{
  margin-top:20px;
  color:#b7b8c2;
  font-size:13px;
  letter-spacing:.28em;
  text-transform:uppercase;
}

.startButton{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-width:220px;
  height:54px;
  margin-top:42px;
  border:1px solid #4c5669;
  background:linear-gradient(#171d28,#10141c);
  color:white;
  border-radius:4px;
  cursor:pointer;
  letter-spacing:.18em;
  font-size:12px;
  font-weight:800;
  box-shadow:0 12px 40px rgba(0,0,0,.3),inset 0 1px rgba(255,255,255,.08);
}

.startButton:hover{
  border-color:var(--accent);
  background:linear-gradient(#1c2531,#141a24);
}

.menuHint{
  margin-top:18px;
  color:#565e6d;
  font-size:11px;
  letter-spacing:.08em;
}

#hud{
  position:fixed;
  inset:0;
  z-index:8;
  pointer-events:none;
}

.topbar{
  position:absolute;
  left:28px;
  right:28px;
  top:22px;
  display:flex;
  align-items:center;
  justify-content:space-between;
}

.hudBrand{
  font-weight:900;
  font-size:17px;
  letter-spacing:.16em;
}

.levelName{
  margin-top:5px;
  color:var(--muted);
  font-size:10px;
  letter-spacing:.18em;
  text-transform:uppercase;
}

.rightHud{
  display:flex;
  align-items:center;
  gap:26px;
  border:0;
  background:none;
}

.hudItem{
  text-align:right;
}

.hudLabel{
  color:#596273;
  font-size:9px;
  letter-spacing:.18em;
}

.hudValue{
  margin-top:3px;
  font-size:15px;
  font-weight:800;
}

.life{
  display:inline-block;
  width:8px;
  height:8px;
  margin-left:5px;
  border-radius:50%;
  background:var(--accent);
}

.life.off{
  background:#303641;
}

#combo{
  color:var(--accent);
}

#timing{
  position:absolute;
  left:50%;
  top:72%;
  transform:translate(-50%,-50%);
  font-size:15px;
  font-weight:900;
  letter-spacing:.35em;
  opacity:0;
}

#timing.perfect{
  color:var(--accent);
}

#timing.miss{
  color:var(--danger);
}

.bottom{
  position:absolute;
  left:28px;
  right:28px;
  bottom:22px;
}

.progressTrack{
  height:3px;
  background:#171b23;
  overflow:hidden;
}

.progressFill{
  height:100%;
  width:0%;
  background:var(--accent);
}

.progressMeta{
  display:flex;
  justify-content:space-between;
  margin-top:9px;
  color:#515968;
  font-size:9px;
  letter-spacing:.14em;
}

#overlay{
  position:fixed;
  inset:0;
  z-index:15;
  display:none;
  align-items:center;
  justify-content:center;
  background:rgba(5,6,10,.72);
}

.overlayBox{
  width:min(430px,86vw);
  padding:38px;
  background:#0d1017;
  border:1px solid #29303d;
  border-radius:10px;
  text-align:center;
  box-shadow:0 25px 80px rgba(0,0,0,.45);
}

.overlayEyebrow{
  color:#667083;
  font-size:10px;
  font-weight:800;
  letter-spacing:.25em;
  text-transform:uppercase;
}

.overlayTitle{
  margin:12px 0 7px;
  font-size:42px;
  letter-spacing:-.04em;
}

.overlayScore{
  color:#8e98a9;
  font-size:12px;
}

.retry{
  margin-top:26px;
  color:white;
  font-size:11px;
  font-weight:800;
  letter-spacing:.18em;
}

.keyHint{
  position:absolute;
  left:50%;
  bottom:75px;
  transform:translateX(-50%);
  color:#3f4654;
  font-size:9px;
  letter-spacing:.18em;
}

@media(max-width:700px){
  .brand{font-size:clamp(58px,17vw,100px)}
  .topbar,
  .bottom{
    left:16px;
    right:16px;
  }

  .topbar{
    top:16px;
    align-items:flex-start;
  }

  .rightHud{
    gap:10px;
  }

  .hudLabel{
    font-size:8px;
  }

  .hudValue{
    font-size:13px;
  }


  .keyHint{
    display:none;
  }
}