/* Header-specific styles for Ultimate Play Quest Zone */

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: linear-gradient(to bottom, rgba(5, 6, 10, 0.98), rgba(5, 6, 10, 0.9), rgba(5, 6, 10, 0.85), transparent);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(148, 163, 184, 0.25);
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4rem;
  gap: var(--space-3);
}

.navbar-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-serif);
  font-size: 1rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-text);
}

.navbar-brand__mark {
  width: 1.9rem;
  height: 1.9rem;
  border-radius: 32%;
  border: 1px solid rgba(148, 163, 184, 0.7);
  box-shadow: var(--shadow-glow-primary);
  background:
    radial-gradient(circle at 25% 10%, rgba(148, 163, 184, 0.55), transparent 55%),
    radial-gradient(circle at 70% 85%, rgba(15, 23, 42, 0.95), rgba(3, 7, 18, 1));
  position: relative;
}

.navbar-brand__mark::before {
  content: "";
  position: absolute;
  inset: 24%;
  border-radius: 24%;
  border: 1px solid rgba(138, 180, 255, 0.8);
  box-shadow: 0 0 12px rgba(138, 180, 255, 0.75);
}

.navbar-brand__text {
  white-space: nowrap;
}

.navbar-menu-wrapper {
  display: flex;
  align-items: center;
}

.navbar-menu {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.navbar-menu__item--highlight .nav-link {
  padding-inline: 0.4rem;
  padding-block: 0.15rem;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(138, 180, 255, 0.75);
  background: radial-gradient(circle at top left, rgba(138, 180, 255, 0.16), rgba(15, 23, 42, 0.98));
  color: var(--color-primary);
}

.nav-link {
  font-size: 0.82rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  padding-bottom: 0.2rem;
  border-bottom: 1px solid transparent;
}

.nav-link:hover {
  color: var(--color-text);
  border-bottom-color: rgba(148, 163, 184, 0.7);
}

.nav-link.nav-link--active {
  color: var(--color-primary);
  border-bottom-color: rgba(138, 180, 255, 0.9);
}

/* Mobile nav toggle */

.nav-toggle {
  display: none;
  position: relative;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.8rem;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(148, 163, 184, 0.5);
  background-color: rgba(15, 23, 42, 0.95);
  color: var(--color-text);
  font-size: 0.8rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  cursor: pointer;
}

.nav-toggle__label {
  display: inline-block;
}

.nav-toggle__icon {
  position: relative;
  width: 1.25rem;
  height: 1.25rem;
}

.nav-toggle__icon::before,
.nav-toggle__icon::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  height: 2px;
  border-radius: 999px;
  background-color: var(--color-text);
  transition: transform var(--transition-normal), top var(--transition-normal), bottom var(--transition-normal), opacity var(--transition-fast);
}

.nav-toggle__icon::before {
  top: 0.35rem;
}

.nav-toggle__icon::after {
  bottom: 0.35rem;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__icon::before {
  top: 50%;
  transform: translateY(-50%) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__icon::after {
  bottom: 50%;
  transform: translateY(50%) rotate(-45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__label::after {
  content: "";
}

/* Responsive behavior */

@media (max-width: 768px) {
  .navbar {
    height: auto;
    padding-top: var(--space-3);
    padding-bottom: var(--space-3);
    flex-wrap: wrap;
  }

  .navbar-brand__text {
    font-size: 0.86rem;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .navbar-menu-wrapper {
    width: 100%;
  }

  .navbar-menu {
    width: 100%;
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-2);
    padding-top: var(--space-3);
    padding-bottom: var(--space-3);
    border-top: 1px solid rgba(31, 41, 55, 0.95);
  }

  /* JS enhancement: when class .is-collapsed is present, hide menu until expanded */
  .navbar-menu-wrapper.is-collapsed .navbar-menu {
    display: none;
  }

  .navbar-menu-wrapper.is-open .navbar-menu {
    display: flex;
  }

  .navbar-menu__item--highlight {
    align-self: stretch;
  }

  .navbar-menu__item--highlight .nav-link {
    display: inline-flex;
    width: 100%;
    justify-content: center;
    padding-block: 0.4rem;
  }
}

@media (min-width: 769px) {
  .navbar-menu-wrapper {
    justify-content: flex-end;
  }
}