:root{
  --bg0:#070815;
  --bg1:#050712;
  --fg:#eaf2ff;
  --mut:#9fb3d3;
  --cyan:#12f7ff;
  --mag:#ff2bd6;
  --yel:#ffe14a;
  --red:#ff3b66;
  --glass: rgba(12,18,42,.55);
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family: "Orbitron", ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial;
  color:var(--fg);
  background: radial-gradient(1200px 600px at 65% 25%, rgba(18,247,255,.15), transparent 60%),
              radial-gradient(900px 500px at 25% 70%, rgba(255,43,214,.14), transparent 55%),
              linear-gradient(180deg, var(--bg0), var(--bg1));
  overflow:hidden;
}

.bg{
  position:fixed; inset:0;
  pointer-events:none;
  background:
    repeating-linear-gradient(0deg, rgba(255,255,255,.03) 0px, rgba(255,255,255,.03) 1px, transparent 3px, transparent 6px);
  mix-blend-mode: overlay;
  opacity:.35;
  filter: blur(.2px);
}

.wrap{
  height:100%;
  display:flex;
  flex-direction:column;
  padding:18px 18px 14px;
  gap:12px;
}

.hud{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:10px 12px;
  border:1px solid rgba(18,247,255,.25);
  border-radius:14px;
  background: linear-gradient(180deg, rgba(12,18,42,.55), rgba(10,14,34,.35));
  box-shadow:
    0 0 0 1px rgba(255,43,214,.12) inset,
    0 10px 40px rgba(0,0,0,.45),
    0 0 24px rgba(18,247,255,.12);
  backdrop-filter: blur(10px);
}

.brand{
  letter-spacing:.16em;
  font-weight:800;
  font-size:16px;
  color:var(--fg);
  text-shadow: 0 0 18px rgba(18,247,255,.25), 0 0 26px rgba(255,43,214,.22);
}

.right{display:flex; gap:10px; flex-wrap:wrap; justify-content:flex-end}
.pill{
  display:flex; align-items:baseline; gap:10px;
  padding:8px 10px;
  border-radius:999px;
  background: rgba(8,10,24,.55);
  border:1px solid rgba(255,255,255,.08);
  box-shadow: 0 0 16px rgba(18,247,255,.08);
}
.pill .k{font-size:11px; color:var(--mut); letter-spacing:.1em}
.pill .v{font-size:14px; font-weight:700; color:var(--fg)}

.stage{
  position:relative;
  flex:1;
  min-height:0;
  border-radius:16px;
  overflow:hidden;
  border:1px solid rgba(18,247,255,.18);
  background: radial-gradient(900px 700px at 50% 35%, rgba(18,247,255,.08), transparent 60%),
              radial-gradient(600px 500px at 30% 80%, rgba(255,43,214,.08), transparent 55%),
              linear-gradient(180deg, rgba(0,0,0,.12), rgba(0,0,0,.28));
  box-shadow:
    0 18px 60px rgba(0,0,0,.55),
    0 0 40px rgba(18,247,255,.10);
}

canvas#c{
  width:100%;
  height:100%;
  display:block;
}

.outLink{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  padding:10px 12px;
  border-radius: 999px;
  text-decoration:none;
  font-weight: 800;
  letter-spacing: .08em;
  font-size: 12px;
  color:#061017;
  background: linear-gradient(90deg, rgba(18,247,255,1), rgba(255,43,214,1));
  box-shadow:
    0 14px 36px rgba(0,0,0,.45),
    0 0 26px rgba(18,247,255,.16),
    0 0 26px rgba(255,43,214,.14);
  border: 0;
  user-select:none;
}
.outLink::after{
  content:"↗";
  font-weight: 900;
  opacity:.9;
}
.outLink:hover{
  filter: brightness(1.06) saturate(1.08);
  transform: translateY(-1px);
}
.outLink:active{
  transform: translateY(0);
}

.overlay{
  position:absolute; inset:0;
  display:flex;
  align-items:center;
  justify-content:center;
  padding:18px;
  background: radial-gradient(500px 320px at 50% 45%, rgba(0,0,0,.72), rgba(0,0,0,.45));
  backdrop-filter: blur(6px);
  z-index: 4;
}
.overlay.hidden{display:none}
.panel{
  width:min(520px, 96vw);
  padding:18px 18px 16px;
  border-radius:16px;
  border:1px solid rgba(18,247,255,.28);
  background: rgba(12,18,42,.60);
  box-shadow:
    0 0 0 1px rgba(255,43,214,.14) inset,
    0 26px 90px rgba(0,0,0,.6),
    0 0 38px rgba(18,247,255,.14);
}
.title{
  font-size:18px;
  letter-spacing:.18em;
  font-weight:800;
  margin-bottom:10px;
  text-shadow: 0 0 22px rgba(18,247,255,.25), 0 0 30px rgba(255,43,214,.22);
}
.sub{
  color:var(--mut);
  line-height:1.55;
  font-size:12px;
  letter-spacing:.02em;
  margin-bottom:14px;
}
.btn{
  width:100%;
  border:0;
  cursor:pointer;
  border-radius:12px;
  padding:12px 12px;
  font-weight:800;
  letter-spacing:.14em;
  color:#061017;
  background:
    linear-gradient(90deg, rgba(18,247,255,1), rgba(255,43,214,1));
  box-shadow:
    0 14px 36px rgba(0,0,0,.45),
    0 0 30px rgba(18,247,255,.18),
    0 0 34px rgba(255,43,214,.16);
}
.btn:active{transform: translateY(1px)}

.rank{
  margin: 12px 0 14px;
  padding: 10px 10px;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,.08);
  background: rgba(8,10,24,.42);
  box-shadow: 0 0 18px rgba(18,247,255,.08);
}
.rankRow{
  display:flex;
  align-items:center;
  gap:8px;
}
.rankLabel{
  font-size:11px;
  color:var(--mut);
  letter-spacing:.08em;
  min-width:52px;
}
.rankInput{
  flex: 1;
  border-radius: 12px;
  border: 1px solid rgba(18,247,255,.20);
  background: rgba(12,18,42,.55);
  color: var(--fg);
  padding: 10px 10px;
  font-family: inherit;
  letter-spacing: .04em;
  outline: none;
  box-shadow: 0 0 0 1px rgba(255,43,214,.10) inset;
}
.rankInput::placeholder{color: rgba(159,179,211,.65)}
.rankBtn{
  border:0;
  cursor:pointer;
  border-radius: 12px;
  padding: 10px 12px;
  font-weight: 800;
  letter-spacing: .12em;
  color:#061017;
  background: linear-gradient(90deg, rgba(18,247,255,1), rgba(255,43,214,1));
  box-shadow: 0 10px 26px rgba(0,0,0,.40);
}
.rankBtn:disabled{
  opacity:.55;
  cursor:not-allowed;
}
.rankMeta{
  margin-top:8px;
  font-size:11px;
  color: rgba(159,179,211,.85);
  letter-spacing:.02em;
}
.rankList{
  margin-top:10px;
  max-height: 200px;
  overflow:auto;
  padding-right: 6px;
}
.rankItem{
  display:flex;
  align-items:baseline;
  justify-content:space-between;
  gap:10px;
  padding: 8px 10px;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,.06);
  background: rgba(12,18,42,.40);
  box-shadow: 0 0 14px rgba(18,247,255,.05);
  margin-bottom: 8px;
}
.rankLeft{
  display:flex;
  align-items:baseline;
  gap:10px;
}
.rankPos{
  font-weight:800;
  color: rgba(18,247,255,.95);
  min-width: 34px;
}
.rankName{
  font-weight:700;
  color: var(--fg);
}
.rankScore{
  font-weight:800;
  color: rgba(255,225,74,.95);
}

.toast{
  position:absolute;
  left:14px;
  bottom:14px;
  padding:10px 12px;
  border-radius:12px;
  background: rgba(8,10,24,.55);
  border:1px solid rgba(255,255,255,.08);
  color: var(--mut);
  font-size:12px;
  letter-spacing:.02em;
  opacity:0;
  transform: translateY(8px);
  transition: opacity .18s ease, transform .18s ease;
  pointer-events:none;
}
.toast.show{
  opacity:1;
  transform: translateY(0);
}

.foot{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  color:rgba(234,242,255,.72);
  font-size:11px;
  letter-spacing:.08em;
  text-align:left;
  text-shadow: 0 0 18px rgba(18,247,255,.08);
}
.footText{
  flex:1;
  min-width:0;
  text-align:left;
}
.foot .outLink{
  flex:0 0 auto;
  padding:8px 10px;
  font-size:11px;
  box-shadow:
    0 10px 26px rgba(0,0,0,.40),
    0 0 22px rgba(18,247,255,.14),
    0 0 22px rgba(255,43,214,.12);
}

@media (max-width: 520px){
  .brand{font-size:14px}
  .pill{padding:7px 9px}
  .foot{flex-wrap:wrap; justify-content:center; text-align:center}
  .footText{flex:1 0 100%; text-align:center}
}