.mobile-menu-toggle,.mobile-menu{display:none}
@media(max-width:900px){
  header.nav{position:relative;z-index:100}
  header.nav>.back{display:none}
  .mobile-menu-toggle{display:grid;width:46px;height:46px;flex:0 0 46px;margin-left:auto;padding:0;border:1px solid rgba(4,46,84,.18);border-radius:14px;background:#fff;color:#042e54;place-content:center;gap:5px;cursor:pointer;box-shadow:0 8px 24px rgba(4,46,84,.12);transition:transform 160ms cubic-bezier(.23,1,.32,1),background-color 180ms cubic-bezier(.23,1,.32,1),box-shadow 180ms cubic-bezier(.23,1,.32,1)}
  .mobile-menu-toggle:active{transform:scale(.97)}
  .mobile-menu-toggle:focus-visible{outline:3px solid #1897d1;outline-offset:3px}
  .mobile-menu-toggle span{display:block;width:21px;height:2px;border-radius:999px;background:currentColor;transform-origin:center;transition:transform 220ms cubic-bezier(.77,0,.175,1),opacity 160ms cubic-bezier(.23,1,.32,1)}
  .mobile-menu-toggle[aria-expanded="true"]{background:#042e54;color:#fff;box-shadow:0 12px 30px rgba(4,46,84,.24)}
  .mobile-menu-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  .mobile-menu-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
  .mobile-menu-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
  .mobile-menu{position:absolute;top:calc(100% - 2px);right:0;left:0;display:grid;gap:5px;padding:12px;border:1px solid rgba(4,46,84,.12);border-radius:18px;background:rgba(255,255,255,.98);box-shadow:0 24px 55px rgba(4,46,84,.2);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);opacity:0;visibility:hidden;pointer-events:none;transform:translateY(-10px) scale(.985);transform-origin:top right;transition:opacity 180ms cubic-bezier(.23,1,.32,1),transform 220ms cubic-bezier(.23,1,.32,1),visibility 0s linear 220ms}
  .mobile-menu[data-open="true"]{opacity:1;visibility:visible;pointer-events:auto;transform:translateY(0) scale(1);transition-delay:0s}
  .mobile-menu a{display:flex;align-items:center;justify-content:space-between;min-height:48px;padding:11px 14px;border-radius:12px;color:#042e54;text-decoration:none;font:650 16px/1.25 'DM Sans',sans-serif}
  .mobile-menu a:after{content:"→";color:#1897d1;font-weight:800}
  .mobile-menu a:hover,.mobile-menu a:focus-visible,.mobile-menu a[aria-current="page"]{background:#e8f3f8;outline:none}
  .mobile-menu a.mobile-menu-cta{margin-top:5px;background:#042e54;color:#fff;justify-content:center}
  .mobile-menu a.mobile-menu-cta:after{display:none}
}
@media(max-width:560px){
  .mobile-menu-toggle{width:42px;height:42px;flex-basis:42px;border-radius:12px}
  .mobile-menu{top:calc(100% + 2px);padding:10px;border-radius:16px}
  .mobile-menu a{min-height:46px;font-size:15px}
}
@media(prefers-reduced-motion:reduce){
  .mobile-menu-toggle,.mobile-menu,.mobile-menu-toggle span{transition:none}
}