.pf-c-masthead {
  /*  background-color: #c62828 !important;*/
}

body::before {
    content: "🟡 STAGE 🟡";
    display: block;
    background: var(--pf-v5-global--BackgroundColor--dark-100);
    color: white;
    text-align: center;
    font-weight: bold;
    padding: 6px;
    font-size: 14px;
    z-index: 9999;
}

/* Optional: leichter visueller Rahmen */
body {
   /* border-top: 5px solid red;*/
}