/* V16: Navigation desktop toujours accessible, sans cacher les rubriques */
@media (min-width:901px){
 .admin-shell aside{height:100vh;max-height:100vh;overflow:hidden;display:flex;flex-direction:column;}
 #admin-nav{flex:1 1 auto;min-height:0;overflow-y:auto;overscroll-behavior:contain;scrollbar-width:thin;padding:8px 4px 18px 0;margin-top:20px;}
 #admin-nav button{display:block;width:100%;min-height:38px;flex-shrink:0;}
 .admin-shell aside .back{margin-top:12px;flex-shrink:0;}
 .admin-shell aside #logout{flex-shrink:0;}
}
@media(max-width:900px){#admin-nav{overflow:visible;max-height:none;display:flex;flex-wrap:wrap;gap:6px}#admin-nav button{width:auto;max-width:100%}}
#admin-nav button:focus-visible{outline:2px solid #f6c56b;outline-offset:2px}