@layer base {
  .navigation {
    position: sticky;
    top: 0;
    z-index: var(--z-nav);
    background-color: var(--card);
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow);
    font-family: var(--font-family-base);
  }

  .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-4);
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 4rem;
  }

  /* Logo */
  .logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    text-decoration: none;
    color: var(--foreground);
    font-weight: 600;
    font-size: 1.25rem;
    transition: color var(--animation-duration-fast) ease;
  }

  .logo:hover {
    color: var(--primary);
  }

  .logoIcon {
    width: 2rem;
    height: 2rem;
    color: var(--primary);
  }

  .logoText {
    font-family: var(--font-family-heading);
    font-weight: 700;
  }

  /* Desktop Navigation Links */
  .navLinks {
    display: flex;
    align-items: center;
    gap: var(--spacing-6);
  }

  .navLink {
    text-decoration: none;
    color: var(--foreground);
    font-weight: 500;
    font-size: 0.9375rem;
    padding: var(--spacing-2) var(--spacing-3);
    border-radius: var(--radius);
    transition: 
      color var(--animation-duration-fast) ease,
      background-color var(--animation-duration-fast) ease;
    position: relative;
  }

  .navLink:hover {
    color: var(--primary);
    background-color: color-mix(in srgb, var(--primary) 8%, transparent);
  }

  .activeLink {
    color: var(--primary);
    background-color: color-mix(in srgb, var(--primary) 12%, transparent);
  }

  /* Auth Section */
  .authSection {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
  }

  .notificationDropdown {
    color: var(--foreground);
  }

  .authLoading {
    color: var(--muted-foreground);
    font-size: 0.875rem;
  }

  .roleIndicator {
    display: flex;
    align-items: center;
  }

  .roleBadge {
    padding: var(--spacing-1) var(--spacing-2);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: capitalize;
    border: 1px solid;
  }

  .roleBadge.admin {
    background-color: color-mix(in srgb, var(--error) 15%, transparent);
    color: var(--error);
    border-color: color-mix(in srgb, var(--error) 30%, transparent);
  }

  .roleBadge.driver {
    background-color: color-mix(in srgb, var(--primary) 15%, transparent);
    color: var(--primary);
    border-color: color-mix(in srgb, var(--primary) 30%, transparent);
  }

  .roleBadge.passenger {
    background-color: color-mix(in srgb, var(--secondary) 15%, transparent);
    color: var(--secondary);
    border-color: color-mix(in srgb, var(--secondary) 30%, transparent);
  }

  .profileButton {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    padding: var(--spacing-1) var(--spacing-2);
    height: auto;
  }

  .profileAvatar {
    width: 2rem;
    height: 2rem;
  }

  .profileName {
    font-weight: 500;
    color: var(--foreground);
  }

  /* Mobile Menu Button */
  .mobileMenuButton {
    color: var(--foreground);
  }

  /* Mobile Menu */
  .mobileMenu {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--card);
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-md);
    animation: slideDown var(--animation-duration-normal) ease-out;
  }

  .mobileNavLinks {
    padding: var(--spacing-4);
    border-bottom: 1px solid var(--border);
  }

  .mobileNavLink {
    display: block;
    text-decoration: none;
    color: var(--foreground);
    font-weight: 500;
    padding: var(--spacing-3) var(--spacing-4);
    border-radius: var(--radius);
    margin-bottom: var(--spacing-1);
    transition: 
      color var(--animation-duration-fast) ease,
      background-color var(--animation-duration-fast) ease;
  }

  .mobileNavLink:hover {
    color: var(--primary);
    background-color: color-mix(in srgb, var(--primary) 8%, transparent);
  }

  .activeMobileLink {
    color: var(--primary);
    background-color: color-mix(in srgb, var(--primary) 12%, transparent);
  }

  /* Mobile Language Section */
  .mobileLanguageSection {
    padding: var(--spacing-4);
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: center;
  }

  /* Mobile Auth Section */
  .mobileAuthSection {
    padding: var(--spacing-4);
  }

  .mobileUserInfo {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    padding: var(--spacing-3);
    background-color: var(--muted);
    border-radius: var(--radius);
    margin-bottom: var(--spacing-4);
  }

  .mobileNotificationDropdown {
    margin-left: auto;
    color: var(--foreground);
  }

  .mobileAvatar {
    width: 2.5rem;
    height: 2.5rem;
  }

  .mobileUserDetails {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-1);
  }

  .mobileUserName {
    font-weight: 600;
    color: var(--foreground);
  }

  .mobileRoleBadge {
    padding: var(--spacing-1) var(--spacing-2);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: capitalize;
    border: 1px solid;
    width: fit-content;
  }

  .mobileRoleBadge.admin {
    background-color: color-mix(in srgb, var(--error) 15%, transparent);
    color: var(--error);
    border-color: color-mix(in srgb, var(--error) 30%, transparent);
  }

  .mobileRoleBadge.driver {
    background-color: color-mix(in srgb, var(--primary) 15%, transparent);
    color: var(--primary);
    border-color: color-mix(in srgb, var(--primary) 30%, transparent);
  }

  .mobileRoleBadge.passenger {
    background-color: color-mix(in srgb, var(--secondary) 15%, transparent);
    color: var(--secondary);
    border-color: color-mix(in srgb, var(--secondary) 30%, transparent);
  }

  .mobileUserActions {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-1);
  }

  .mobileUserAction {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    padding: var(--spacing-3) var(--spacing-4);
    text-decoration: none;
    color: var(--foreground);
    font-weight: 500;
    border-radius: var(--radius);
    background: none;
    border: none;
    cursor: pointer;
    font-family: inherit;
    font-size: inherit;
    width: 100%;
    text-align: left;
    transition: 
      color var(--animation-duration-fast) ease,
      background-color var(--animation-duration-fast) ease;
  }

  .mobileUserAction:hover {
    color: var(--primary);
    background-color: color-mix(in srgb, var(--primary) 8%, transparent);
  }

  .mobileAuthButton {
    display: block;
    text-decoration: none;
    color: var(--foreground);
    font-weight: 500;
    padding: var(--spacing-3) var(--spacing-4);
    border-radius: var(--radius);
    margin-bottom: var(--spacing-2);
    text-align: center;
    border: 1px solid var(--border);
    transition: 
      color var(--animation-duration-fast) ease,
      background-color var(--animation-duration-fast) ease,
      border-color var(--animation-duration-fast) ease;
  }

  .mobileAuthButton:hover {
    color: var(--primary);
    background-color: color-mix(in srgb, var(--primary) 8%, transparent);
    border-color: var(--primary);
  }

  .mobileAuthButton:last-child {
    background-color: var(--primary);
    color: var(--primary-foreground);
    border-color: var(--primary);
  }

  .mobileAuthButton:last-child:hover {
    background-color: color-mix(in srgb, var(--primary), black 10%);
    color: var(--primary-foreground);
  }

  /* Animations */
  @keyframes slideDown {
    from {
      opacity: 0;
      transform: translateY(-10px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }

  /* Responsive adjustments */
  @media (max-width: 767px) {
    .container {
      padding: 0 var(--spacing-3);
    }

    .logoText {
      font-size: 1.125rem;
    }

    .logoIcon {
      width: 1.75rem;
      height: 1.75rem;
    }
  }

  /* Dark mode adjustments */
  :global(.dark) .navigation {
    background-color: var(--card);
    border-bottom-color: var(--border);
  }

  :global(.dark) .mobileMenu {
    background-color: var(--card);
    border-bottom-color: var(--border);
  }

  :global(.dark) .mobileUserInfo {
    background-color: var(--muted);
  }
}