.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid rgba(255,255,255,.35);
  border-radius: 4px;
  background: transparent;
  color: currentColor;
  cursor: pointer;
}
.menu-toggle span {
  display: block;
  width: 19px;
  height: 2px;
  margin: 2px auto;
  border-radius: 999px;
  background: currentColor;
  transition: transform .25s ease, opacity .2s ease;
}
.header.is-scrolled .menu-toggle {
  border-color: rgba(19,36,58,.18);
}

@media (max-width: 820px) {
  .header {
    width: calc(100% - 24px) !important;
    height: 64px !important;
    grid-template-columns: minmax(96px,1fr) auto 44px !important;
    gap: 8px !important;
    padding: 6px 7px 6px 10px !important;
    overflow: visible !important;
  }
  .header .brand {
    grid-column: 1;
    width: min(132px,100%) !important;
    height: 48px !important;
    justify-self: start;
    padding-inline: 3px !important;
  }
  .header .header-buy {
    grid-column: 2;
    width: auto !important;
    min-height: 46px !important;
    padding: 0 12px !important;
    justify-content: center !important;
    border-radius: 4px !important;
    font-size: 10px !important;
    line-height: 1 !important;
    white-space: nowrap;
  }
  .header .header-buy::after {
    display: none !important;
  }
  .menu-toggle {
    grid-column: 3;
    display: grid;
    place-content: center;
  }
  .header .nav {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    right: 0;
    display: flex !important;
    max-height: calc(100svh - 100px);
    flex-direction: column;
    align-items: stretch;
    gap: 0 !important;
    padding: 8px;
    overflow-y: auto;
    border: 1px solid rgba(19,36,58,.12);
    border-radius: 6px;
    background: rgba(255,253,248,.98);
    color: #13243a;
    box-shadow: 0 24px 55px rgba(3,20,47,.2);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    pointer-events: none;
    transition: opacity .25s ease, transform .25s ease, visibility .25s ease;
  }
  .header.menu-open .nav {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    pointer-events: auto;
  }
  .header .nav a {
    width: 100%;
    padding: 15px 13px;
    border-bottom: 1px solid rgba(19,36,58,.09);
    font-size: 11px !important;
    letter-spacing: .1em;
  }
  .header .nav a::after {
    display: none !important;
  }
  .header .nav a[aria-current="page"] {
    color: #08499a;
    background: rgba(8,73,154,.07);
  }
  .header .nav a:last-child {
    margin-top: 7px;
    border: 0;
    border-radius: 4px;
    background: #08499a;
    color: white;
  }
  .header.menu-open .menu-toggle span:nth-child(1) {
    transform: translateY(4px) rotate(45deg);
  }
  .header.menu-open .menu-toggle span:nth-child(2) {
    opacity: 0;
  }
  .header.menu-open .menu-toggle span:nth-child(3) {
    transform: translateY(-4px) rotate(-45deg);
  }
}

@media (max-width: 350px) {
  .header {
    grid-template-columns: minmax(88px,1fr) auto 42px !important;
    gap: 5px !important;
  }
  .header .brand {
    width: min(112px,100%) !important;
  }
  .header .header-buy {
    min-height: 44px !important;
    padding-inline: 9px !important;
    font-size: 9px !important;
  }
  .menu-toggle {
    width: 42px;
    height: 44px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .header .nav,
  .menu-toggle span {
    transition: none !important;
  }
}