// Thin fixed banner shown only when NEXT_PUBLIC_ENV_LABEL is set (e.g. staging).
// Production never sets the var, so it renders nothing there.
export function EnvBanner() {
  const label = process.env.NEXT_PUBLIC_ENV_LABEL;
  if (!label) return null;
  return (
    <div
      role="status"
      style={{
        position: "fixed",
        top: 0,
        left: 0,
        right: 0,
        zIndex: 9999,
        height: 18,
        lineHeight: "18px",
        textAlign: "center",
        background: "#b45309",
        color: "#fff",
        fontSize: 11,
        fontWeight: 700,
        letterSpacing: "0.06em",
        pointerEvents: "none",
        fontFamily: "var(--font-sans), system-ui, sans-serif",
      }}
    >
      {label}
    </div>
  );
}