#hud-scale-dev-overlay {
  position: absolute;
  top: 8px;
  left: 8px;
  z-index: 40;
  pointer-events: auto;
  min-width: 220px;
  padding: 10px 12px;
  border-radius: 8px;
  background: rgba(8, 10, 16, 0.88);
  border: 1px solid rgba(255, 255, 255, 0.14);
  color: #eef2ff;
  font: 12px/1.35 ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
}

#hud-scale-dev-overlay.is-hidden {
  display: none;
}

#hud-scale-dev-overlay .hud-scale-dev-title {
  margin: 0 0 8px;
  font-size: 11px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  opacity: 0.85;
}

#hud-scale-dev-overlay .hud-scale-dev-row {
  display: grid;
  grid-template-columns: 72px 1fr 28px;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
}

#hud-scale-dev-overlay .hud-scale-dev-row label {
  opacity: 0.9;
}

#hud-scale-dev-overlay input[type="range"] {
  width: 100%;
}

#hud-scale-dev-overlay .hud-scale-dev-value {
  text-align: right;
  opacity: 0.8;
}

#hud-scale-dev-overlay .hud-scale-dev-row--select {
  grid-template-columns: 72px 1fr;
}

#hud-scale-dev-overlay select {
  width: 100%;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.08);
  color: inherit;
  border-radius: 6px;
  padding: 4px 6px;
  font: inherit;
}

#hud-scale-dev-overlay .hud-scale-dev-actions {
  display: flex;
  gap: 8px;
  margin-top: 4px;
}

#hud-scale-dev-overlay button {
  pointer-events: auto;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.08);
  color: inherit;
  border-radius: 6px;
  padding: 6px 8px;
  font: inherit;
  cursor: pointer;
}

#hud-scale-dev-overlay button:hover {
  background: rgba(255, 255, 255, 0.14);
}

#hud-scale-dev-overlay .hud-scale-dev-status {
  margin-top: 8px;
  min-height: 1.35em;
  opacity: 0.85;
}

#hud-scale-dev-overlay .hud-scale-dev-status.is-error {
  color: #ffb4b4;
}

#hud-scale-dev-overlay .hud-scale-dev-status.is-ok {
  color: #b6f5c8;
}