/* target the SSO link reliably */
a[href$="/sso/"] {
    position: relative;
    /* Keep size/layout */
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }
  
  /* Hide any original nested text/icons */
  a[href$="/sso/"] > * {
    visibility: hidden !important;
  }
  
  /* Show your custom label on top */
  a[href$="/sso/"]::after {
    content: "Use Birtingur Email Login"; /* <-- your text */
    position: absolute;
    inset: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    visibility: visible;
    pointer-events: none; /* so clicks still hit the real button */
  }