.mobile-menu-toggle {
  position: relative;
  display: none;
  width: 42px;
  height: 42px;
  padding: 0;
  border: 0;
  background: none;
  cursor: pointer;
}

.mobile-menu-toggle span {
  position: absolute;
  right: 10px;
  left: 10px;
  height: 2px;
  background: var(--navy);
  border-radius: 2px;
  transition: top .2s, transform .2s, opacity .2s;
}

.mobile-menu-toggle span:nth-child(1) { top: 13px; }
.mobile-menu-toggle span:nth-child(2) { top: 20px; }
.mobile-menu-toggle span:nth-child(3) { top: 27px; }

@media (max-width: 900px) {
  html,
  body {
    overflow-x: hidden;
  }

  .site-header {
    position: relative;
    z-index: 20;
  }

  .mobile-menu-toggle {
    display: block;
    flex: 0 0 42px;
    margin-left: auto;
  }

  .site-header > nav {
    position: absolute;
    top: 100%;
    right: 0;
    left: 0;
    display: none !important;
    flex-direction: column;
    align-items: stretch;
    gap: 0 !important;
    margin: 0 !important;
    padding: 14px max(5vw, 24px) 22px;
    background: white;
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
    box-shadow: 0 18px 35px rgba(24, 52, 111, .14);
  }

  .mobile-menu-open .site-header > nav {
    display: flex !important;
  }

  .site-header > nav a,
  .site-header > nav .link-button {
    display: block !important;
    width: 100%;
    padding: 14px 4px !important;
    border-bottom: 1px solid var(--line);
    text-align: left;
    font-size: .78rem !important;
  }

  .site-header > nav form {
    width: 100%;
  }

  .site-header > nav form .link-button {
    border-bottom: 0;
  }

  .mobile-menu-open .mobile-menu-toggle span:nth-child(1),
  .mobile-menu-open .mobile-menu-toggle span:nth-child(3) {
    top: 20px;
  }

  .mobile-menu-open .mobile-menu-toggle span:nth-child(1) {
    transform: rotate(45deg);
  }

  .mobile-menu-open .mobile-menu-toggle span:nth-child(2) {
    opacity: 0;
  }

  .mobile-menu-open .mobile-menu-toggle span:nth-child(3) {
    transform: rotate(-45deg);
  }

  .client-brand {
    margin-left: auto;
  }

  .client-brand + .mobile-menu-toggle {
    margin-left: 12px;
  }
}

@media (min-width: 901px) {
  .site-header > nav {
    display: flex !important;
  }
}