html, body {
  margin: 0;
  padding: 0;
  width: 100%;
  height: 100%;
  background: transparent;
  overflow: hidden;
  font-family: Arial, Helvetica, sans-serif;
}

/* block game clicks by default */
body { pointer-events: none; }
#wrap, #wrap * { pointer-events: auto; }

.hidden { display: none !important; }

#wrap {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

#wrap::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 40%, rgba(0,0,0,0.15), rgba(0,0,0,0.60));
}

.panel {
  position: relative;
  z-index: 2;
  width: 420px;
  border-radius: 14px;
  background: rgba(18,18,22,0.90);
  box-shadow: 0 12px 40px rgba(0,0,0,0.45);
  padding: 18px;
  color: #fff;
}

.title {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 14px;
}

.row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 0;
  border-top: 1px solid rgba(255,255,255,0.08);
}

.label {
  font-size: 14px;
  opacity: 0.9;
}

.controls {
  display: flex;
  gap: 8px;
  align-items: center;
}

.value {
  min-width: 48px;
  text-align: center;
  font-weight: 700;
  opacity: 0.95;
}

button {
  border: 0;
  padding: 8px 10px;
  border-radius: 10px;
  background: rgba(255,255,255,0.12);
  color: #fff;
  cursor: pointer;
}

button:hover {
  background: rgba(255,255,255,0.18);
}

button.primary {
  background: rgba(80,160,255,0.85);
}

button.primary:hover {
  background: rgba(80,160,255,1);
}

button.active {
  outline: 2px solid rgba(80,160,255,0.9);
}

.footer {
  display: flex;
  justify-content: flex-end;
  padding-top: 12px;
  border-top: 1px solid rgba(255,255,255,0.08);
  margin-top: 12px;
}

.hint {
  margin-top: 10px;
  font-size: 12px;
  opacity: 0.65;
}