/* One shared mobile menu; desktop navigation retains its existing layout. */
.mobile-nav{display:none}
@media(max-width:850px){
  .masthead{position:relative;flex-wrap:nowrap!important;gap:12px!important}
  .masthead>.desktop-nav,.masthead>.index-link{display:none!important}
  .masthead>.mobile-nav{display:block;position:static;order:initial;margin-left:auto;flex:none}
  .mobile-nav>summary{display:flex;align-items:center;justify-content:center;list-style:none;cursor:pointer;width:44px;min-width:44px;height:44px;min-height:44px;padding:10px;border:1px solid var(--rule,#CDC9B8);border-radius:3px;color:var(--ink,#182D2B)}
  .mobile-nav>summary::-webkit-details-marker{display:none}
  .mobile-nav>summary::marker{content:''}
  .mobile-nav>summary:hover,.mobile-nav[open]>summary{background:var(--paper-secondary,#EEE8D8)}
  .mobile-nav>summary:focus-visible{outline:3px solid var(--copper,#A85024);outline-offset:3px}
  .hamburger-icon{position:relative;display:block;width:22px;height:16px;border-top:2px solid currentColor;border-bottom:2px solid currentColor}
  .hamburger-icon::before{content:'';position:absolute;left:0;right:0;top:5px;border-top:2px solid currentColor}
  .mobile-nav>nav{position:absolute;top:calc(100% - 8px);right:clamp(16px,1.7vw,24px);width:min(320px,calc(100vw - 32px));max-height:calc(100dvh - 105px);overflow:auto;display:flex;flex-direction:column;gap:2px;background:var(--paper,#F7F3E9);color:var(--ink,#182D2B);border:1px solid var(--rule,#CDC9B8);box-shadow:0 8px 24px #182d2b18;padding:10px;z-index:100}
  .mobile-nav:not([open])>nav{display:none}
  .mobile-nav>nav>a{display:flex;align-items:center;gap:12px;min-height:44px;padding:10px 12px;font:500 14px/1.5 system-ui,sans-serif;text-decoration:none;border:0}
  .mobile-nav>nav>a:hover,.mobile-nav>nav>[aria-current]{background:var(--paper-secondary,#EEE8D8);color:var(--ink,#182D2B)}
  .mobile-nav>nav>.mobile-index-link{margin-top:8px;justify-content:space-between;background:var(--copper,#A85024);color:#fff;border-radius:3px}
  .mobile-nav>nav>.mobile-index-link:hover{background:var(--ink,#182D2B);color:#fff}
}