/* Universal Peace — shared mobile navigation (hamburger menu) */
.up-nav-check {
  position: absolute;
  top: 0.85rem;
  right: 1rem;
  width: 2.75rem;
  height: 2.75rem;
  margin: 0;
  opacity: 0;
  pointer-events: none;
}

.up-burger {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  width: 2.75rem;
  height: 2.75rem;
  flex: none;
  border: 1px solid color-mix(in oklab, var(--gold) 40%, transparent);
  border-radius: 9999px;
  color: var(--gold);
  cursor: pointer;
}

.up-burger-bar {
  display: block;
  width: 1.1rem;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

/* Open/close icon morph (CSS-only pages use the hidden checkbox; React page uses a header class) */
.up-nav-check:checked ~ * .up-burger-bar:nth-child(1),
.up-menu-open .up-burger-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.up-nav-check:checked ~ * .up-burger-bar:nth-child(2),
.up-menu-open .up-burger-bar:nth-child(2) {
  opacity: 0;
}
.up-nav-check:checked ~ * .up-burger-bar:nth-child(3),
.up-menu-open .up-burger-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.up-nav-check:focus-visible ~ * .up-burger {
  outline: 2px solid var(--gold);
  outline-offset: 2px;
}

.up-mobile-nav {
  display: none;
  flex-direction: column;
  gap: 0.25rem;
  padding: 0.5rem 1rem 1.25rem;
  border-top: 1px solid color-mix(in oklab, var(--gold) 15%, transparent);
  background: color-mix(in oklab, var(--background) 94%, transparent);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
}

.up-nav-check:checked ~ .up-mobile-nav,
.up-menu-open .up-mobile-nav,
.up-mobile-nav-open {
  display: flex;
}

.up-mobile-nav a {
  display: block;
  padding: 0.8rem 0.75rem;
  border-radius: 0.75rem;
  font-size: 1rem;
  color: color-mix(in oklab, var(--foreground) 85%, transparent);
}

.up-mobile-nav a:hover {
  color: var(--gold);
  background: color-mix(in oklab, var(--gold) 8%, transparent);
}

.up-mobile-nav a[aria-current="page"] {
  color: var(--gold);
}

.up-mobile-cta {
  margin-top: 0.5rem;
  text-align: center;
  font-weight: 600;
}

.up-mobile-nav a.up-mobile-cta.bg-gold-grad {
  color: var(--ink);
}

@media (min-width: 768px) {
  .up-burger,
  .up-mobile-nav {
    display: none !important;
  }
  .up-nav-check {
    visibility: hidden;
  }
}

@media (prefers-reduced-motion: reduce) {
  .up-burger-bar {
    transition: none;
  }
}