@media (max-width: 900px) {
  .site-header {
    height: 70px;
  }

  .brand {
    width: 118px;
    height: 54px;
    flex-shrink: 0;
  }

  .brand img {
    width: 100%;
    height: auto;
  }

  .menu-toggle {
    display: flex;
    border: 0;
    background: transparent;
    width: 40px;
    height: 40px;
    position: relative;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    border-radius: 4px;
    -webkit-tap-highlight-color: transparent;
  }

  .menu-toggle span {
    position: absolute;
    width: 22px;
    height: 2px;
    background: var(--navy);
    border-radius: 999px;
    transform-origin: center;
    transition: transform .28s cubic-bezier(.4, 0, .2, 1), background-color .2s ease;
  }

  .menu-toggle span:first-child {
    transform: translateY(-4px);
  }

  .menu-toggle span:last-child {
    transform: translateY(4px);
  }

  .menu-toggle[aria-expanded="true"] span:first-child {
    transform: rotate(45deg);
  }

  .menu-toggle[aria-expanded="true"] span:last-child {
    transform: rotate(-45deg);
  }

  .menu-toggle:focus-visible {
    outline: 2px solid var(--blue);
    outline-offset: 2px;
  }

  .main-nav {
    display: flex;
    position: absolute;
    left: 0;
    right: 0;
    top: 70px;
    padding: 18px 19px 24px;
    background: #fff;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    border-top: 1px solid #e5eaf1;
    box-shadow: 0 12px 25px rgba(8, 30, 58, .1);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(-10px);
    transform-origin: top;
    transition: opacity .24s ease, transform .28s cubic-bezier(.22, 1, .36, 1), visibility 0s linear .28s;
  }

  .main-nav.open {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateY(0);
    transition-delay: 0s;
  }

  .main-nav a {
    padding: 12px 0;
    opacity: 0;
    transform: translateY(-5px);
    transition: color .2s, opacity .2s ease, transform .24s ease;
  }

  .main-nav.open a {
    opacity: 1;
    transform: translateY(0);
  }

  .main-nav.open a:nth-child(1) { transition-delay: .04s; }
  .main-nav.open a:nth-child(2) { transition-delay: .065s; }
  .main-nav.open a:nth-child(3) { transition-delay: .09s; }
  .main-nav.open a:nth-child(4) { transition-delay: .115s; }
  .main-nav.open a:nth-child(5) { transition-delay: .14s; }
  .main-nav.open a:nth-child(6) { transition-delay: .165s; }
  .main-nav.open a:nth-child(7) { transition-delay: .19s; }

  @media (prefers-reduced-motion: reduce) {
    .menu-toggle span,
    .main-nav,
    .main-nav a {
      transition-duration: .01ms;
      transition-delay: 0s;
    }
  }

  .main-nav .nav-cta {
    margin: 8px 0 0;
    text-align: center;
  }
}