:root{--line:rgba(15,23,42,.10);} 

#logo img{height:42px; width:auto; display:block;}

/* Dual-mode logo fallback keeps strict img structure intact by toggling siblings */
#logoText{display:none;}

#footer{border-top:1px solid var(--line);} 

.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;}