.mobile-nav {
  display: none;
  position: relative;
}

@media (max-width: 1180px) {
  .header-inner {
    grid-template-columns: minmax(0, 1fr) auto auto;
    gap: 1rem;
    position: relative;
  }

  .mobile-nav {
    display: block;
    position: static;
    justify-self: end;
  }

  /* Prevent a duplicated hydrated instance from ever producing two controls. */
  .header-inner > .mobile-nav ~ .mobile-nav {
    display: none;
  }

  .mobile-nav-toggle {
    min-height: 2.75rem;
    padding: 0.65rem 0.8rem;
    border: 1px solid #c9d6e2;
    border-radius: 0.65rem;
    background: #fff;
    color: var(--navy);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-size: 0.88rem;
    font-weight: 850;
    line-height: 1;
    list-style: none;
    white-space: nowrap;
    -webkit-user-select: none;
    user-select: none;
    box-shadow: 0 5px 16px #0a2c7314;
  }

  .mobile-nav-toggle::marker {
    content: "";
  }

  .mobile-nav-toggle::-webkit-details-marker {
    display: none;
  }

  .mobile-nav-toggle:hover {
    border-color: var(--navy-light);
    background: #f3f8fc;
  }

  .mobile-nav-toggle:focus-visible {
    outline: 3px solid var(--amber);
    outline-offset: 3px;
  }

  .mobile-nav-toggle svg {
    width: 1.2rem;
    height: 1.2rem;
    flex: 0 0 auto;
  }

  .mobile-nav-icon-close,
  .mobile-nav-label-close {
    display: none;
  }

  .mobile-nav[open] .mobile-nav-icon-open {
    display: none;
  }

  .mobile-nav[open] .mobile-nav-icon-close {
    display: block;
  }

  .mobile-nav[open] .mobile-nav-label-open {
    display: none;
  }

  .mobile-nav[open] .mobile-nav-label-close {
    display: inline;
  }

  .mobile-nav[open] .mobile-nav-toggle {
    border-color: var(--navy);
    background: var(--navy);
    color: #fff;
  }

  .mobile-nav-panel {
    position: absolute;
    z-index: 300;
    top: 100%;
    left: 0;
    right: 0;
    width: auto;
    max-height: calc(100dvh - 4.75rem - env(safe-area-inset-bottom));
    padding: 0.85rem;
    border: 1px solid #c9d6e2;
    border-top: 0;
    border-radius: 0 0 1rem 1rem;
    background: #fff;
    color: var(--navy);
    overflow-y: auto;
    overscroll-behavior: contain;
    box-shadow: 0 24px 64px #071c4540;
  }

  .mobile-nav-kicker {
    margin: 0;
    padding: 0.45rem 0.55rem 0.65rem;
    color: #526a80;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    font-size: 0.7rem;
    font-weight: 850;
  }

  .mobile-nav-links {
    display: grid;
    gap: 0.25rem;
  }

  .mobile-nav-links > a {
    display: grid;
    grid-template-columns: 2.3rem minmax(0, 1fr);
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem;
    border-radius: 0.75rem;
    color: var(--navy);
    text-decoration: none;
  }

  .mobile-nav-links > a:hover,
  .mobile-nav-links > a:focus-visible {
    background: #f3f8fc;
  }

  .mobile-nav-links > a:focus-visible,
  .mobile-nav-petition:focus-visible {
    outline: 3px solid var(--amber);
    outline-offset: 2px;
  }

  .mobile-nav-links > a[aria-current="page"] {
    background: #eaf5ff;
    box-shadow: inset 3px 0 0 var(--navy-light);
  }

  .mobile-nav-link-icon {
    width: 2.3rem;
    height: 2.3rem;
    border-radius: 0.6rem;
    background: #eaf5ff;
    color: var(--navy-light);
    display: grid;
    place-items: center;
  }

  .mobile-nav-link-icon svg {
    width: 1.15rem;
    height: 1.15rem;
  }

  .mobile-nav-links strong,
  .mobile-nav-links small {
    display: block;
  }

  .mobile-nav-links strong {
    color: var(--navy);
    font-size: 0.95rem;
    line-height: 1.25;
  }

  .mobile-nav-links small {
    margin-top: 0.18rem;
    color: #526a80;
    font-size: 0.75rem;
    line-height: 1.35;
  }

  .mobile-nav-petition {
    min-height: 3rem;
    margin-top: 0.65rem;
    padding: 0.75rem 1rem;
    border-radius: 0.7rem;
    background: var(--red);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.55rem;
    font-size: 0.9rem;
    font-weight: 850;
    text-decoration: none;
    box-shadow: 0 8px 22px #b4232b33;
  }

  .mobile-nav-petition:hover {
    background: #b9002b;
  }

  .mobile-nav-petition svg {
    width: 1rem;
    height: 1rem;
  }
}

@media (max-width: 640px) {
  .header-inner {
    grid-template-columns: minmax(0, 1fr) auto;
  }

  .header-cta {
    display: none;
  }

  .mobile-nav-panel {
    max-height: calc(100dvh - 4.25rem - env(safe-area-inset-bottom));
    margin-inline: -1rem;
    border-right: 0;
    border-left: 0;
    border-radius: 0 0 1rem 1rem;
  }
}

@media (max-width: 390px) {
  .header-inner {
    gap: 0.6rem;
  }

  .mobile-nav-toggle {
    padding-inline: 0.7rem;
  }
}