/* Navigation Component - Enhanced */

.navigation {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-fixed);
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
  padding: var(--spacing-md) 0;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.navigation.nav-scrolled {
  box-shadow: var(--shadow-md);
}

/* Transparent variant for homepage */
.navigation-transparent {
  background: transparent;
  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

.navigation-transparent.nav-scrolled {
  background-color: rgba(255, 255, 255, 0.95);
  border-bottom: 1px solid var(--color-border);
}

.nav-container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Logo */
.nav-logo {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  z-index: var(--z-fixed);
}

.nav-logo a {
  color: var(--color-primary);
  transition: opacity var(--transition-base);
}

.navigation-transparent .nav-logo a {
  color: white;
}

.navigation-transparent.nav-scrolled .nav-logo a {
  color: var(--color-primary);
}

.nav-logo a:hover {
  opacity: 0.8;
}

/* Skip Link for Accessibility */
.skip-link {
  position: absolute;
  top: -100px;
  left: 0;
  background: var(--color-primary);
  color: white;
  padding: var(--spacing-md);
  z-index: 9999;
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: 0;
}

/* Navigation Links */
.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}

.nav-link {
  color: var(--color-text-dark);
  font-weight: var(--font-weight-medium);
  font-size: var(--font-size-base);
  transition: color var(--transition-base);
  position: relative;
  padding: var(--spacing-sm) 0;
  background: none;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.navigation-transparent .nav-link {
  color: white;
}

.navigation-transparent.nav-scrolled .nav-link {
  color: var(--color-text-dark);
}

.nav-link:hover,
.nav-link:focus {
  color: var(--color-primary);
  outline: none;
}

.nav-link:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 4px;
  border-radius: var(--border-radius-sm);
}

.nav-link.active {
  color: var(--color-primary);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -0.5rem;
  left: 0;
  right: 0;
  height: 2px;
  background-color: var(--color-primary);
}

/* Dropdown Navigation */
.nav-dropdown {
  position: relative;
}

.nav-dropdown-toggle {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.dropdown-arrow {
  font-size: 0.7rem;
  transition: transform var(--transition-fast);
}

.nav-dropdown.active .dropdown-arrow {
  transform: rotate(180deg);
}

.nav-dropdown-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  margin-top: var(--spacing-md);
  background: white;
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-lg);
  min-width: 200px;
  padding: var(--spacing-sm) 0;
  z-index: var(--z-dropdown);
}

.nav-dropdown-menu li {
  list-style: none;
}

.nav-dropdown-menu a {
  display: block;
  padding: var(--spacing-sm) var(--spacing-lg);
  color: var(--color-text-dark);
  font-size: var(--font-size-sm);
  transition: background-color var(--transition-fast);
}

.nav-dropdown-menu a:hover,
.nav-dropdown-menu a:focus {
  background-color: var(--color-background-light);
  color: var(--color-primary);
}

/* Navigation Actions */
.nav-actions {
  display: flex;
  gap: var(--spacing-md);
  align-items: center;
}

.nav-utility-link {
  color: var(--color-text-dark);
  font-weight: var(--font-weight-medium);
  font-size: var(--font-size-sm);
  transition: color var(--transition-base);
  padding: var(--spacing-sm) var(--spacing-md);
}

.navigation-transparent .nav-utility-link {
  color: white;
}

.navigation-transparent.nav-scrolled .nav-utility-link {
  color: var(--color-text-dark);
}

.nav-utility-link:hover {
  color: var(--color-primary);
}

.btn-cta {
  white-space: nowrap;
}

/* Mobile Menu Toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 0.35rem;
  padding: var(--spacing-sm);
  background: transparent;
  border: none;
  cursor: pointer;
  z-index: var(--z-fixed);
  transition: opacity var(--transition-base);
}

.nav-toggle:hover {
  opacity: 0.7;
}

.nav-toggle:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 4px;
  border-radius: var(--border-radius-sm);
}

.nav-toggle-line {
  width: 24px;
  height: 2px;
  background-color: var(--color-text-dark);
  transition: transform var(--transition-base), opacity var(--transition-base);
  border-radius: 2px;
}

.navigation-transparent .nav-toggle-line {
  background-color: white;
}

.navigation-transparent.nav-scrolled .nav-toggle-line {
  background-color: var(--color-text-dark);
}

.nav-toggle.active .nav-toggle-line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle.active .nav-toggle-line:nth-child(2) {
  opacity: 0;
}

.nav-toggle.active .nav-toggle-line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile Styles */
@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }
  
  .nav-links {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: white;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 2rem;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-20px);
    transition: opacity var(--transition-base), 
                visibility var(--transition-base),
                transform var(--transition-base);
  }
  
  .nav-links.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }
  
  .nav-link {
    font-size: var(--font-size-xl);
    color: var(--color-text-dark);
  }
  
  .nav-link.active::after {
    display: none;
  }
  
  /* Dropdown in mobile */
  .nav-dropdown-menu {
    position: static;
    margin-top: var(--spacing-sm);
    box-shadow: none;
    border: none;
    background: var(--color-background-light);
    border-radius: var(--border-radius-sm);
  }
  
  .nav-dropdown-menu a {
    font-size: var(--font-size-base);
  }
  
  /* Actions in mobile menu */
  .nav-actions {
    position: fixed;
    bottom: 4rem;
    left: 50%;
    transform: translateX(-50%);
    flex-direction: column;
    width: 80%;
    max-width: 300px;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-base), 
                visibility var(--transition-base);
  }
  
  .mobile-open .nav-actions {
    opacity: 1;
    visibility: visible;
  }
  
  .nav-actions .btn {
    width: 100%;
    text-align: center;
  }
  
  .nav-utility-link {
    text-align: center;
    width: 100%;
  }
}

/* Tablet breakpoint */
@media (max-width: 1024px) and (min-width: 769px) {
  .nav-links {
    gap: 1.5rem;
  }
  
  .nav-container {
    padding: 0 var(--spacing-xl);
  }
}

/* Large screens */
@media (min-width: 1280px) {
  .nav-links {
    gap: 2.5rem;
  }
}