:root{
  --bg:#0e0f13;
  --panel:#12141a;
  --muted:#8f96a3;
  --fg:#e9edf3;
  --primary:#7c5cff;
  --glass-bg: rgba(255,255,255,0.03);
  --glass-border: rgba(255,255,255,0.06);
  --glass-accent: rgba(124,92,255,0.12);
}

.settings-btn{
  position:fixed;
  top:14px;
  right:14px;
  width:44px;
  height:44px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:6px;
  z-index:100000;
  color:var(--fg);
  background: linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0.01));
  border:1px solid var(--glass-border);
  border-radius:10px;
  backdrop-filter: blur(6px) saturate(120%);
  box-shadow: 0 6px 20px rgba(3,6,12,0.6), 0 1px 0 rgba(255,255,255,0.02) inset;
  cursor:pointer;
  font-size:18px;
}

.settings-btn:hover,
.settings-btn:focus{
  outline: none;
  box-shadow: 0 10px 30px rgba(3,6,12,0.7), 0 0 0 6px var(--glass-accent);
  transform: translateY(-1px);
}

.settings-panel{
  position:fixed;
  top:70px;
  right:14px;
  width:340px;
  max-width:calc(100% - 28px);
  z-index:100000;
  display:none;
  flex-direction:column;
  border-radius:12px;
  overflow:hidden;
  color:var(--fg);
  background: linear-gradient(180deg, rgba(18,20,24,0.70), rgba(18,20,24,0.60));
  border:1px solid var(--glass-border);
  backdrop-filter: blur(10px) saturate(130%);
  box-shadow: 0 20px 60px rgba(0,0,0,0.6);
  -webkit-backdrop-filter: blur(10px) saturate(130%);
}

.settings-panel[aria-hidden="false"],
.settings-panel.open{
  display:flex;
  animation: pop .12s ease-out;
}

@keyframes pop {
  from { transform: translateY(-6px) scale(.995); opacity:0 }
  to   { transform: translateY(0) scale(1); opacity:1 }
}

.settings-header{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:12px 14px;
  border-bottom:1px solid rgba(255,255,255,0.02);
  background: linear-gradient(180deg, rgba(255,255,255,0.01), rgba(255,255,255,0.005));
}

.settings-header strong{ font-size:14px; letter-spacing:0.2px; }

.settings-close{
  border:none;
  background:transparent;
  color:var(--muted);
  cursor:pointer;
  font-size:16px;
  padding:6px;
  border-radius:8px;
}
.settings-close:hover{ color:var(--fg); background: rgba(255,255,255,0.02) }

.settings-body{ padding:12px 14px 16px; display:flex; flex-direction:column; gap:10px; }

.setting-row{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:8px;
  border-radius:10px;
  background: linear-gradient(180deg, rgba(255,255,255,0.01), rgba(255,255,255,0.005));
  border:1px solid rgba(255,255,255,0.012);
}

.setting-desc{
  margin:0;
  color:var(--muted);
  font-size:13px;
  line-height:1.35;
  padding:0 2px;
}

.switch {
  --w:48px;
  --h:28px;
  --pad:3px;
  width:var(--w);
  height:var(--h);
  background: rgba(255,255,255,0.03);
  border-radius:999px;
  border:1px solid rgba(255,255,255,0.04);
  display:inline-flex;
  align-items:center;
  padding:var(--pad);
  box-shadow: inset 0 -6px 16px rgba(0,0,0,0.45);
  cursor:pointer;
}

.switch input{ display:none; }

.switch .knob{
  width: calc(var(--h) - (var(--pad) * 2));
  height: calc(var(--h) - (var(--pad) * 2));
  background: linear-gradient(180deg, #fff, rgba(255,255,255,0.9));
  border-radius:50%;
  transform: translateX(0);
  transition: transform .18s cubic-bezier(.2,.9,.2,1), background .18s;
  box-shadow: 0 6px 18px rgba(3,6,12,0.8);
  display:inline-block;
}

.switch.on{ background: linear-gradient(90deg, rgba(124,92,255,0.18), rgba(95,195,255,0.08)); border-color: rgba(124,92,255,0.18) }
.switch.on .knob{ transform: translateX(calc(var(--w) - var(--h))); background: linear-gradient(180deg, var(--primary), #5fc3ff); }

.settings-footer{ padding:10px 14px; border-top:1px solid rgba(255,255,255,0.01); display:flex; justify-content:flex-end; gap:8px }
.settings-note{ font-size:12px; color:var(--muted) }

@media (max-width:520px){
  .settings-panel{ right:10px; left:10px; top:60px; width:auto; }
  .settings-btn{ right:10px; top:10px; }
}