.wms-fs-btn{
    width:30px;height:30px;border-radius:7px;cursor:pointer;font-size:14px;
    display:flex;align-items:center;justify-content:center;transition:.15s;
    border:1px solid rgba(148,163,184,.35);
    background:rgba(148,163,184,.12);color:#e2e8f0;
    flex-shrink:0;
  }
  .wms-fs-btn:hover{background:#334155;border-color:#334155;color:#fff}
  .wms-fs-btn:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(10,110,209,.18)}

  /* Shell claro V5.0.42.x · mismo criterio que .wms-logout-btn */
  .topbar .wms-fs-btn{
    border-color:#cbd5e1!important;background:#f8fafc!important;color:#334155!important;
  }
  .topbar .wms-fs-btn:hover{
    background:#334155!important;border-color:#334155!important;color:#fff!important;
  }
  .topbar .wms-fs-btn[data-fs="on"]{
    background:#0a6ed1!important;border-color:#0a6ed1!important;color:#fff!important;
  }

  /* En pantalla completa el navegador pinta el ::backdrop en negro.
     Sin esto aparecen franjas negras si el contenido no llena el alto. */
  html:fullscreen,html:-webkit-full-screen{background:var(--bg,#f4f6f9)}
  html:fullscreen body,html:-webkit-full-screen body{height:100%}
  html:fullscreen .tpclock{user-select:none}