/* Navigation principale — bascule avant que les liens soient tronqués. */
.main-nav .nav-batir360{margin-left:7px;border:1px solid rgba(215,237,130,.55);background:rgba(215,237,130,.12);color:#efffb3;font-weight:800}.main-nav .nav-batir360:hover{border-color:#d7ed82;background:#d7ed82;color:#123f36}.main-nav .nav-batir360 span{margin-left:5px}
@media (max-width:1280px){
  .site-header{grid-template-columns:auto minmax(0,1fr) auto}
  .profile-button{display:none}
  .menu-button{display:inline-flex;align-items:center;justify-content:center;min-height:42px;padding:8px 14px;font-weight:700}
  .main-nav{display:none;position:absolute;top:calc(100% - 1px);left:16px;right:16px;grid-column:auto;max-height:calc(100vh - 86px);overflow:auto;padding:10px;border:1px solid rgba(255,255,255,.18);border-radius:0 0 14px 14px;background:#08253a;box-shadow:0 20px 45px rgba(3,20,31,.3)}
  .main-nav.open{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:5px}
  .main-nav a{display:flex;align-items:center;min-height:44px;padding:10px 14px;border:1px solid rgba(255,255,255,.08);background:rgba(255,255,255,.035);text-align:left;font-size:13px;white-space:normal}
  .main-nav a:hover,.main-nav a.active{border-color:rgba(255,255,255,.22);background:rgba(255,255,255,.1)}
  .main-nav a.active{box-shadow:inset 3px 0 #d8aa43}
  .main-nav .nav-batir360{grid-column:1 / -1;justify-content:center;margin-left:0;background:rgba(215,237,130,.12);color:#efffb3}
}

@media (max-width:700px){
  .site-header{grid-template-columns:auto auto}
  .main-nav{left:10px;right:10px;max-height:calc(100vh - 78px)}
  .main-nav.open{grid-template-columns:1fr}
  .main-nav a{min-height:42px}
}