/* ==========================================================================
   NAVIGATION BAR COMPONENT
   ========================================================================== */

/* Main Navigation Container */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: var(--z-sticky);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  background: rgba(18, 18, 18, 0.8);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  transition: all var(--transition-normal);
}

.navbar.scrolled {
  background: rgba(18, 18, 18, 0.95);
  box-shadow: var(--shadow-lg);
}

/* Navigation Inner Container */
.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--spacing-md);
  padding-bottom: var(--spacing-md);
  min-height: 70px;
}

/* Logo Section */
.navbar-brand {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  text-decoration: none;
  color: var(--color-text-primary);
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-xl);
  transition: transform var(--transition-fast);
}

.navbar-brand:hover {
  transform: scale(1.05);
  color: var(--color-text-primary);
}

.navbar-brand:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 4px;
  border-radius: var(--border-radius-md);
}

/* Logo Image */
.navbar-logo {
  width: 40px;
  height: 40px;
  border-radius: var(--border-radius-lg);
  object-fit: cover;
  transition: all var(--transition-normal);
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.2);
  border: 2px solid rgba(99, 102, 241, 0.3);
}

.navbar-logo:hover {
  border-color: var(--color-primary);
  filter: brightness(1.1);
}

/* Navigation Menu */
.navbar-nav {
  display: none;
  align-items: center;
  gap: var(--spacing-xl);
  list-style: none;
  margin: 0;
  padding: 0;
}

.navbar-nav-item {
  position: relative;
}

.navbar-nav-link {
  color: var(--color-text-secondary);
  text-decoration: none;
  font-weight: var(--font-weight-medium);
  font-size: var(--font-size-base);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--border-radius-md);
  transition: all var(--transition-fast);
  position: relative;
  overflow: hidden;
}

.navbar-nav-link::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(99, 102, 241, 0.1), transparent);
  transition: left var(--transition-normal);
}

.navbar-nav-link:hover::before {
  left: 100%;
}

.navbar-nav-link:hover {
  color: var(--color-text-primary);
  background-color: rgba(99, 102, 241, 0.1);
  transform: translateY(-2px);
}

.navbar-nav-link:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
  color: var(--color-text-primary);
}

.navbar-nav-link.active {
  color: var(--color-primary-light);
  background-color: rgba(99, 102, 241, 0.15);
}

/* Action Buttons Container */
.navbar-actions {
  display: none;
  align-items: center;
  gap: var(--spacing-md);
}

/* CTA Buttons */
.btn-outline {
  padding: var(--spacing-sm) var(--spacing-lg);
  border: 2px solid var(--color-primary);
  background: transparent;
  color: var(--color-primary);
  border-radius: var(--border-radius-md);
  font-weight: var(--font-weight-semibold);
  font-size: var(--font-size-sm);
  text-decoration: none;
  transition: all var(--transition-fast);
  position: relative;
  overflow: hidden;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.btn-outline::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: var(--color-primary);
  transition: left var(--transition-normal);
  z-index: -1;
}

.btn-outline:hover::before {
  left: 0;
}

.btn-outline:hover {
  color: var(--color-text-inverse);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(99, 102, 241, 0.3);
}

.btn-primary {
  padding: var(--spacing-sm) var(--spacing-lg);
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: var(--color-text-primary);
  border: none;
  border-radius: var(--border-radius-md);
  font-weight: var(--font-weight-semibold);
  font-size: var(--font-size-sm);
  text-decoration: none;
  transition: all var(--transition-fast);
  position: relative;
  overflow: hidden;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

.btn-primary::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--color-primary-light) 0%, var(--color-primary) 100%);
  transition: left var(--transition-normal);
  z-index: -1;
}

.btn-primary:hover::before {
  left: 0;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(99, 102, 241, 0.4);
  color: var(--color-text-primary);
}

/* Mobile Menu Toggle */
.navbar-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--color-text-primary);
  font-size: var(--font-size-2xl);
  cursor: pointer;
  padding: var(--spacing-sm);
  border-radius: var(--border-radius-md);
  transition: all var(--transition-fast);
  position: relative;
  z-index: var(--z-modal);
}

.navbar-toggle:hover {
  background-color: rgba(99, 102, 241, 0.1);
  transform: scale(1.1);
}

.navbar-toggle:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Mobile Menu Styles */
.mobile-menu-checkbox {
  display: none;
}

.mobile-menu {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background: rgba(18, 18, 18, 0.98);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  z-index: var(--z-modal-backdrop);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: var(--spacing-xl);
}

.mobile-menu-checkbox:checked ~ .mobile-menu {
  opacity: 1;
  visibility: visible;
}

.mobile-menu .navbar-nav {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-2xl);
}

.mobile-menu .navbar-nav-link {
  font-size: var(--font-size-xl);
  padding: var(--spacing-md) var(--spacing-lg);
  text-align: center;
  min-width: 200px;
}

.mobile-menu .navbar-actions {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-md);
}

.mobile-menu .btn-outline,
.mobile-menu .btn-primary {
  min-width: 200px;
  text-align: center;
  justify-content: center;
}

/* Close button for mobile menu */
.mobile-menu-close {
  position: absolute;
  top: var(--spacing-lg);
  right: var(--spacing-lg);
  background: none;
  border: none;
  color: var(--color-text-primary);
  font-size: var(--font-size-3xl);
  cursor: pointer;
  padding: var(--spacing-sm);
  border-radius: var(--border-radius-md);
  transition: all var(--transition-fast);
}

.mobile-menu-close:hover {
  background-color: rgba(239, 68, 68, 0.1);
  color: var(--color-danger);
  transform: scale(1.1);
}

/* RESPONSIVE DESIGN */

/* Tablet and up - show navigation */
@media (min-width: 768px) {
  .navbar-nav {
    display: flex;
  }
  
  .navbar-actions {
    display: flex;
  }
  
  .navbar-toggle {
    display: none;
  }
}

/* Mobile - show toggle button */
@media (max-width: 767.98px) {
  .navbar-toggle {
    display: block;
  }
  
  .navbar .container {
    padding-top: var(--spacing-sm);
    padding-bottom: var(--spacing-sm);
    min-height: 60px;
  }
  
  .navbar-brand {
    font-size: var(--font-size-lg);
  }
  
  .navbar-logo {
    width: 35px;
    height: 35px;
  }
}

/* Extra small screens */
@media (max-width: 575.98px) {
  .navbar .container {
    padding-left: var(--spacing-sm);
    padding-right: var(--spacing-sm);
  }
  
  .navbar-brand {
    font-size: var(--font-size-base);
  }
  
  .navbar-logo {
    width: 30px;
    height: 30px;
  }
}

/* Animation keyframes removed for cleaner appearance */

/* Navbar static styles - no animations applied */

/* Accessibility improvements */
@media (prefers-reduced-motion: reduce) {
  .navbar-logo:hover {
    transform: none;
  }
  
  .navbar-nav-link:hover {
    transform: none;
  }
  
  .btn-outline:hover,
  .btn-primary:hover {
    transform: none;
  }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  .navbar {
    background: rgba(0, 0, 0, 0.95);
    border-bottom: 2px solid var(--color-text-primary);
  }
  
  .navbar-nav-link {
    border: 1px solid transparent;
  }
  
  .navbar-nav-link:hover,
  .navbar-nav-link:focus {
    border-color: var(--color-primary);
  }
}

/* Focus management for keyboard navigation */
.navbar-nav-link:focus-visible,
.btn-outline:focus-visible,
.btn-primary:focus-visible,
.navbar-toggle:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
}