:root{
  --bg:#000;
  --panel:#0b1020cc;
  --text:#e8f0ff;
  --muted:#a8b6d8;
  --accent:#7cffc9;
  --accent2:#7cb7ff;
  --danger:#ff6b6b;
  --shadow: 0 12px 40px rgba(0,0,0,.55);
  --r: 18px;
}

html,body{
  height:100%;
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial;
}

.stage{
  position:fixed; inset:0;
  display:grid; place-items:center;
  overflow:hidden;
  touch-action:manipulation;
  user-select:none;
  background:#000;
}

.hint{
  position:fixed;
  top: max(10px, env(safe-area-inset-top));
  left: 0;
  right: 0;
  text-align:center;
  opacity:.55;
  font-size:12px;
  color:var(--muted);
  pointer-events:none;
}

.displayWrap{
  width:min(96vw, 720px);
  aspect-ratio: 520 / 360;
  position:relative;
  display:grid; place-items:center;
}

.display{
  width:100%;
  height:100%;
  display:block;
  filter: drop-shadow(0 18px 40px rgba(0,0,0,.70));
}

/* Touch overlay */
.overlay{
  position:absolute;
  left: max(12px, env(safe-area-inset-left));
  right: max(12px, env(safe-area-inset-right));
  bottom: max(12px, env(safe-area-inset-bottom));
  display:flex;
  gap:10px;
  align-items:center;
  justify-content:space-between;
  background:var(--panel);
  border:1px solid rgba(255,255,255,.10);
  border-radius: var(--r);
  padding:10px 12px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  opacity:0;
  transform: translateY(10px);
  pointer-events:none;
  transition: opacity .18s ease, transform .18s ease;
}

.overlay.show{
  opacity:1;
  transform: translateY(0);
  pointer-events:auto;
}

.overlay .left,
.overlay .right{
  display:flex;
  gap:10px;
  align-items:center;
  flex-wrap:wrap;
}

a.btn, button.btn{
  appearance:none;
  border:1px solid rgba(255,255,255,.14);
  background: rgba(255,255,255,.06);
  color:var(--text);
  border-radius: 14px;
  padding:10px 12px;
  font-size:14px;
  text-decoration:none;
  line-height:1;
  display:inline-flex;
  align-items:center;
  gap:8px;
  cursor:pointer;
}

a.btn:active, button.btn:active{ transform: translateY(1px); }

.pill{
  font-size:12px;
  color:var(--muted);
  padding:8px 10px;
  border-radius:999px;
  border:1px solid rgba(255,255,255,.12);
  background: rgba(255,255,255,.04);
  display:inline-flex;
  align-items:center;
  gap:8px;
}

.dot{
  width:9px;
  height:9px;
  border-radius:99px;
  background: var(--accent2);
  box-shadow: 0 0 0 3px rgba(124,183,255,.15);
}
.dot.on{
  background: var(--accent);
  box-shadow: 0 0 0 3px rgba(124,255,201,.15);
}
.dot.off{
  background: var(--danger);
  box-shadow: 0 0 0 3px rgba(255,107,107,.12);
}