/* Tooltip-Container (wird per JS positioniert) */
  .ext-popup {
    position: absolute;
    z-index: 9999;
    background: #fff;
    color: #333;
    font: 13px/1.4 system-ui, -apple-system, Segoe UI, Roboto, "Helvetica Neue", Arial, "Noto Sans", "Liberation Sans", sans-serif;
    padding: 10px 15px;
    border-radius: 6px;
    box-shadow: 0 8px 16px rgba(0,0,0,.18);
    pointer-events: none; /* kein Klick-Fokus verschieben */
    opacity: 0;
    transform: translateY(-4px);
    transition: opacity .15s ease, transform .15s ease;
    white-space: nowrap;
  }
  .ext-popup.show {
    opacity: 1;
    transform: translateY(0);
  }
  /* Fokus-Sichtbarkeit */
  .content a:focus {
    outline: 2px solid #0a84ff;
    outline-offset: 2px;
  }