/* ============================================
   NAVIGATION - GLASSMORPHIC DARK BAR
   ============================================ */

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-fixed);
  height: 72px;
  background: rgba(5, 12, 26, 0.92);
  border-bottom: 1px solid rgba(0, 245, 255, 0.1);
  backdrop-filter: blur(14px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--spacing-4);
  transition: background var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base);
}

.navbar.scrolled {
  background: rgba(5, 12, 26, 0.98);
  border-bottom-color: rgba(124, 92, 255, 0.25);
  box-shadow: var(--shadow-base);
}

.navbar-brand {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-2);
  color: var(--color-primary);
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-xl);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  transition: transform var(--transition-fast), color var(--transition-fast);
}

.navbar-brand:hover {
  transform: translateY(-2px);
  color: var(--color-secondary);
}

.navbar-brand .brand-icon {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, rgba(0, 245, 255, 0.25), rgba(124, 92, 255, 0.35));
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  color: var(--color-dark);
  box-shadow: var(--shadow-sm);
}

.navbar-inner {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-6);
}

.navbar-menu {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  align-items: center;
  gap: var(--spacing-2);
}

.navbar-item {
  position: relative;
}

.navbar-link {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-1);
  padding: var(--spacing-2) var(--spacing-3);
  color: var(--color-dark-gray);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  border-radius: var(--radius-full);
  transition: color var(--transition-fast), background var(--transition-fast), transform var(--transition-fast);
}

.navbar-link:hover,
.navbar-link:focus-visible {
  color: var(--color-dark);
  background: rgba(0, 245, 255, 0.18);
  outline: none;
}

.navbar-link.active {
  color: var(--color-dark);
  background: rgba(124, 92, 255, 0.18);
}

.dropdown-icon {
  width: 14px;
  height: 14px;
  transition: transform var(--transition-fast);
}

.navbar-item.has-dropdown:hover .dropdown-icon,
.navbar-item.has-dropdown:focus-within .dropdown-icon {
  transform: rotate(180deg);
}

.dropdown-menu {
  position: absolute;
  top: calc(100% + 16px);
  left: 0;
  min-width: 240px;
  background: rgba(8, 16, 32, 0.95);
  border: 1px solid rgba(0, 245, 255, 0.18);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  padding: var(--spacing-3) 0;
  list-style: none;
  opacity: 0;
  transform: translateY(-8px);
  pointer-events: none;
  transition: opacity var(--transition-base), transform var(--transition-base);
}

.navbar-item.has-dropdown:hover .dropdown-menu,
.navbar-item.has-dropdown:focus-within .dropdown-menu {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.dropdown-menu::before {
  content: '';
  position: absolute;
  top: -10px;
  left: 24px;
  width: 18px;
  height: 18px;
  background: inherit;
  transform: rotate(45deg);
  border-left: inherit;
  border-top: inherit;
}

.dropdown-item {
  display: block;
  padding: var(--spacing-3) var(--spacing-6);
  color: rgba(230, 246, 255, 0.75);
  font-size: var(--font-size-sm);
  letter-spacing: 0.06em;
  transition: background var(--transition-fast), color var(--transition-fast);
}

.dropdown-item:hover,
.dropdown-item:focus-visible {
  color: var(--color-dark);
  background: rgba(0, 245, 255, 0.18);
  text-decoration: none;
  outline: none;
}

.dropdown-item.active {
  color: var(--color-dark);
  background: rgba(124, 92, 255, 0.18);
}

.navbar-utility {
  display: flex;
  align-items: center;
  gap: var(--spacing-3);
}

.navbar-cta {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-2);
  border-radius: var(--radius-full);
  padding: var(--spacing-2) var(--spacing-4);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  background: rgba(255, 51, 102, 0.18);
  color: var(--color-dark);
  border: 1px solid rgba(255, 51, 102, 0.35);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.navbar-cta:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-tertiary);
  text-decoration: none;
}

.theme-toggle {
  background: transparent;
  border: 1px solid rgba(0, 245, 255, 0.18);
  color: var(--color-dark-gray);
  width: 42px;
  height: 42px;
  border-radius: var(--radius-full);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
  cursor: pointer;
}

.theme-toggle:hover {
  color: var(--color-primary);
  border-color: rgba(124, 92, 255, 0.4);
}

/* ---- MOBILE ---- */
.navbar-toggle {
  display: none;
  width: 46px;
  height: 46px;
  border-radius: var(--radius-full);
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(5, 12, 26, 0.85);
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 6px;
  cursor: pointer;
  transition: border var(--transition-fast), transform var(--transition-fast);
}

.navbar-toggle span {
  width: 22px;
  height: 2px;
  background: var(--color-dark);
  border-radius: var(--radius-full);
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.navbar-toggle.active span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.navbar-toggle.active span:nth-child(2) {
  opacity: 0;
}

.navbar-toggle.active span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

@media (max-width: 1023px) {
  .navbar {
    padding: 0 var(--spacing-3);
  }
  
  .navbar-inner {
    gap: var(--spacing-4);
  }
  
  .navbar-menu {
    position: fixed;
    top: 72px;
    right: 16px;
    left: 16px;
    flex-direction: column;
    align-items: stretch;
    gap: var(--spacing-2);
    padding: var(--spacing-4);
    background: rgba(8, 16, 30, 0.97);
    border: 1px solid rgba(0, 245, 255, 0.18);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-16px);
    transition: opacity var(--transition-base), transform var(--transition-base);
  }
  
  .navbar-menu.active {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }
  
  .navbar-link {
    padding: var(--spacing-3) var(--spacing-4);
    justify-content: space-between;
  }
  
  .dropdown-menu {
    position: static;
    background: rgba(5, 12, 26, 0.85);
    border: 1px solid rgba(0, 245, 255, 0.12);
    border-radius: var(--radius-xl);
    box-shadow: none;
    max-height: 0;
    overflow: hidden;
    transform: none;
    opacity: 1;
    transition: max-height var(--transition-base);
  }
  
  .dropdown-menu::before {
    display: none;
  }
  
  .navbar-item.open .dropdown-menu {
    max-height: 600px;
  }
  
  .navbar-utility {
    display: none;
  }
  
  .navbar-toggle {
    display: inline-flex;
  }
}

.mobile-utility {
  display: none;
  margin-top: var(--spacing-4);
  padding: var(--spacing-4);
  border-radius: var(--radius-xl);
  background: rgba(5, 12, 26, 0.9);
  border: 1px solid rgba(0, 245, 255, 0.12);
  flex-direction: column;
  gap: var(--spacing-4);
}

.mobile-utility.active {
  display: flex;
}