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

.mobile-menu summary {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  padding: 0.62rem 0.78rem;
  border: 1px solid rgba(243, 241, 234, 0.34);
  border-radius: 0.35rem;
  color: var(--paper);
  cursor: pointer;
  font-size: 0.82rem;
  font-weight: 950;
  letter-spacing: 0.08em;
  list-style: none;
  text-transform: uppercase;
}

.mobile-menu summary::-webkit-details-marker {
  display: none;
}

.mobile-menu summary::after {
  content: "";
  width: 0.48rem;
  height: 0.48rem;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: translateY(-0.14rem) rotate(45deg);
  transition: transform 160ms ease;
}

.mobile-menu[open] summary {
  border-color: var(--yellow);
  color: var(--yellow);
}

.mobile-menu[open] summary::after {
  transform: translateY(0.12rem) rotate(225deg);
}

.mobile-menu-panel {
  position: fixed;
  top: var(--mobile-menu-top, 5rem);
  right: max(0.75rem, env(safe-area-inset-right));
  left: max(0.75rem, env(safe-area-inset-left));
  z-index: 80;
  display: grid;
  width: auto;
  max-height: calc(100dvh - var(--mobile-menu-top, 5rem) - 6rem);
  overflow-y: auto;
  padding: 0.55rem;
  border: 1px solid rgba(243, 207, 22, 0.42);
  border-radius: 0.45rem;
  background: rgba(16, 18, 16, 0.98);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.44);
}

.mobile-menu-panel a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 46px;
  padding: 0.72rem 0.82rem;
  border-radius: 0.3rem;
  color: var(--paper);
  font-size: 0.95rem;
  font-weight: 850;
  text-decoration: none;
}

.mobile-menu-panel a:hover,
.mobile-menu-panel a:focus-visible {
  background: rgba(243, 207, 22, 0.12);
  color: var(--yellow);
}

.mobile-menu-panel a[aria-current="page"] {
  background: var(--yellow);
  color: var(--ink);
}

@media (max-width: 900px) {
  .site-header .nav {
    position: relative;
  }

  .mobile-menu {
    display: block;
  }
}

@media (max-width: 520px) {
  .mobile-menu summary {
    width: 44px;
    padding-inline: 0;
    font-size: 0;
  }

  .mobile-menu summary::before {
    content: "☰";
    font-size: 1.18rem;
    line-height: 1;
  }

  .mobile-menu summary::after {
    display: none;
  }
}