Komponente "Portfolio-Navigation"

<nav class="bg-orange-50 dark:bg-gray-900 border-b border-orange-200 dark:border-gray-800 font-serif shadow-sm">
  <div class="max-w-7xl mx-auto px-4 sm:px-6 lg:px-8">
    <div class="flex items-center justify-between h-16">
      <div class="flex items-center">
        <div class="flex-shrink-0">
          <a href="#" class="text-orange-700 dark:text-orange-300 text-2xl font-bold tracking-tight">Portfolio<span class="text-orange-500 dark:text-yellow-400">.</span></a>
        </div>
        <div class="hidden md:block">
          <div class="ml-10 flex items-baseline space-x-4">
            <a href="#" class="text-orange-700 dark:text-orange-300 hover:bg-orange-100 hover:text-orange-900 dark:hover:bg-gray-800 dark:hover:text-yellow-400 px-3 py-2 rounded-md text-sm font-medium transition duration-200 ease-in-out">Projects</a>
            <a href="#" class="text-orange-700 dark:text-orange-300 hover:bg-orange-100 hover:text-orange-900 dark:hover:bg-gray-800 dark:hover:text-yellow-400 px-3 py-2 rounded-md text-sm font-medium transition duration-200 ease-in-out">About</a>
            <a href="#" class="text-orange-700 dark:text-orange-300 hover:bg-orange-100 hover:text-orange-900 dark:hover:bg-gray-800 dark:hover:text-yellow-400 px-3 py-2 rounded-md text-sm font-medium transition duration-200 ease-in-out">Services</a>
            <a href="#" class="text-orange-700 dark:text-orange-300 hover:bg-orange-100 hover:text-orange-900 dark:hover:bg-gray-800 dark:hover:text-yellow-400 px-3 py-2 rounded-md text-sm font-medium transition duration-200 ease-in-out">Contact</a>
          </div>
        </div>
      </div>
      <div class="hidden md:block">
        <div class="ml-4 flex items-center md:ml-6">
          <button type="button" class="hover:bg-orange-100 dark:hover:bg-gray-800 p-1 rounded-full text-orange-600 dark:text-orange-400 hover:text-orange-800 dark:hover:text-yellow-400 focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-offset-orange-50 dark:focus:ring-offset-gray-900 focus:ring-orange-500 dark:focus:ring-yellow-500 transition duration-200 ease-in-out">
            <span class="sr-only">View notifications</span>
            <svg class="h-6 w-6" xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke="currentColor" aria-hidden="true">
              <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M15 17h5l-1.405-1.405A2.032 2.032 0 0118 14.158V11a6.002 6.002 0 00-4-5.659V5a2 2 0 10-4 0v.341C7.67 6.165 6 8.388 6 11v3.159c0 .538-.214 1.055-.595 1.436L4 17h5m6 0v1a3 3 0 11-6 0v-1m6 0H9" />
            </svg>
          </button>

          <div class="ml-3 relative">
            <div>
              <button type="button" class="max-w-xs bg-orange-50 dark:bg-gray-900 rounded-full flex items-center text-sm focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-offset-orange-50 dark:focus:ring-offset-gray-900 focus:ring-orange-500 dark:focus:ring-yellow-500" id="user-menu-button" aria-expanded="false" aria-haspopup="true">
                <span class="sr-only">Open user menu</span>
                <img class="h-8 w-8 rounded-full border border-orange-300 dark:border-gray-700" src="https://randomuser.me/api/portraits/men/75.jpg" alt="User avatar">
              </button>
            </div>
            <!-- User menu options (hidden by default, can be toggled with JS) -->
            <!--
            <div class="origin-top-right absolute right-0 mt-2 w-48 rounded-md shadow-lg py-1 bg-white ring-1 ring-black ring-opacity-5 focus:outline-none" role="menu" aria-orientation="vertical" aria-labelledby="user-menu-button" tabindex="-1">
              <a href="#" class="block px-4 py-2 text-sm text-gray-700 hover:bg-gray-100" role="menuitem" tabindex="-1" id="user-menu-item-0">Your Profile</a>
              <a href="#" class="block px-4 py-2 text-sm text-gray-700 hover:bg-gray-100" role="menuitem" tabindex="-1" id="user-menu-item-1">Settings</a>
              <a href="#" class="block px-4 py-2 text-sm text-gray-700 hover:bg-gray-100" role="menuitem" tabindex="-1" id="user-menu-item-2">Sign out</a>
            </div>
            -->
          </div>

          <!-- Dark mode toggle -->
          <button id="dark-mode-toggle" class="ml-4 hover:bg-orange-100 dark:hover:bg-gray-800 p-1 rounded-full text-orange-600 dark:text-orange-400 hover:text-orange-800 dark:hover:text-yellow-400 focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-offset-orange-50 dark:focus:ring-offset-gray-900 focus:ring-orange-500 dark:focus:ring-yellow-500 transition duration-200 ease-in-out">
            <span class="sr-only">Toggle dark mode</span>
            <svg class="h-6 w-6 hidden dark:block" xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke="currentColor">
              <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M12 3v1m0 16v1m9-9h1M3 12H2m8.05-9.636l-.707-.707M16.95 2L16.243 2.707m-9.636 8.05l-.707.707M2.707 16.243l.707.707M21 12a9 9 0 11-18 0 9 9 0 0118 0z" />
            </svg>
            <svg class="h-6 w-6 dark:hidden" xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke="currentColor">
              <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M20.354 15.354A9 9 0 018.646 3.646 9.003 9.003 0 0012 21a9.003 9.003 0 008.354-5.646z" />
            </svg>
          </button>
        </div>
      </div>
      <div class="-mr-2 flex md:hidden">
        <!-- Mobile menu button -->
        <button type="button" class="inline-flex items-center justify-center p-2 rounded-md text-orange-600 dark:text-orange-400 hover:text-orange-800 hover:bg-orange-100 dark:hover:text-yellow-400 dark:hover:bg-gray-800 focus:outline-none focus:ring-2 focus:ring-inset focus:ring-orange-500 dark:focus:ring-yellow-500 transition duration-200" aria-expanded="false">
          <span class="sr-only">Open main menu</span>
          <!-- Icon when menu is closed. -->
          <svg class="block h-6 w-6" xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke="currentColor" aria-hidden="true">
            <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M4 6h16M4 12h16M4 18h16" />
          </svg>
          <!-- Icon when menu is open. -->
          <svg class="hidden h-6 w-6" xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke="currentColor" aria-hidden="true">
            <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M6 18L18 6M6 6l12 12" />
          </svg>
        </button>
      </div>
    </div>
  </div>

  <!-- Mobile menu, show/hide based on menu state. -->
  <div class="md:hidden hidden" id="mobile-menu">
    <div class="px-2 pt-2 pb-3 space-y-1 sm:px-3">
      <a href="#" class="text-orange-700 dark:text-orange-300 hover:bg-orange-100 hover:text-orange-900 dark:hover:bg-gray-800 dark:hover:text-yellow-400 block px-3 py-2 rounded-md text-base font-medium transition duration-200 ease-in-out">Projects</a>
      <a href="#" class="text-orange-700 dark:text-orange-300 hover:bg-orange-100 hover:text-orange-900 dark:hover:bg-gray-800 dark:hover:text-yellow-400 block px-3 py-2 rounded-md text-base font-medium transition duration-200 ease-in-out">About</a>
      <a href="#" class="text-orange-700 dark:text-orange-300 hover:bg-orange-100 hover:text-orange-900 dark:hover:bg-gray-800 dark:hover:text-yellow-400 block px-3 py-2 rounded-md text-base font-medium transition duration-200 ease-in-out">Services</a>
      <a href="#" class="text-orange-700 dark:text-orange-300 hover:bg-orange-100 hover:text-orange-900 dark:hover:bg-gray-800 dark:hover:text-yellow-400 block px-3 py-2 rounded-md text-base font-medium transition duration-200 ease-in-out">Contact</a>
    </div>
    <div class="pt-4 pb-3 border-t border-orange-200 dark:border-gray-700">
      <div class="flex items-center px-5">
        <div class="flex-shrink-0">
          <img class="h-10 w-10 rounded-full border border-orange-300 dark:border-gray-700" src="https://randomuser.me/api/portraits/men/75.jpg" alt="User avatar">
        </div>
        <div class="ml-3">
          <div class="text-base font-medium leading-none text-orange-800 dark:text-orange-200">John Doe</div>
          <div class="text-sm font-medium leading-none text-orange-600 dark:text-gray-400">[email protected]</div>
        </div>
        <button type="button" class="ml-auto flex-shrink-0 hover:bg-orange-100 dark:hover:bg-gray-800 p-1 rounded-full text-orange-600 dark:text-orange-400 hover:text-orange-800 dark:hover:text-yellow-400 focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-offset-orange-50 dark:focus:ring-offset-gray-900 focus:ring-orange-500 dark:focus:ring-yellow-500 transition duration-200 ease-in-out">
          <span class="sr-only">View notifications</span>
          <svg class="h-6 w-6" xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke="currentColor" aria-hidden="true">
            <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M15 17h5l-1.405-1.405A2.032 2.032 0 0118 14.158V11a6.002 6.002 0 00-4-5.659V5a2 2 0 10-4 0v.341C7.67 6.165 6 8.388 6 11v3.159c0 .538-.214 1.055-.595 1.436L4 17h5m6 0v1a3 3 0 11-6 0v-1m6 0H9" />
          </svg>
        </button>
      </div>
      <div class="mt-3 px-2 space-y-1">
        <a href="#" class="block px-3 py-2 rounded-md text-base font-medium text-orange-800 dark:text-orange-200 hover:text-orange-900 hover:bg-orange-100 dark:hover:bg-gray-800 dark:hover:text-yellow-400 transition duration-200 ease-in-out">Your Profile</a>
        <a href="#" class="block px-3 py-2 rounded-md text-base font-medium text-orange-800 dark:text-orange-200 hover:text-orange-900 hover:bg-orange-100 dark:hover:bg-gray-800 dark:hover:text-yellow-400 transition duration-200 ease-in-out">Settings</a>
        <a href="#" class="block px-3 py-2 rounded-md text-base font-medium text-orange-800 dark:text-orange-200 hover:text-orange-900 hover:bg-orange-100 dark:hover:bg-gray-800 dark:hover:text-yellow-400 transition duration-200 ease-in-out">Sign out</a>
      </div>
    </div>
  </div>
</nav>

<script>
  // This script toggle the mobile menu and dark mode.
  // In a real application, you would ensure these are correctly integrated with your framework or vanilla JS setup.
  document.addEventListener('DOMContentLoaded', () => {
    const mobileMenuButton = document.querySelector('nav button[aria-expanded]');
    const mobileMenu = document.getElementById('mobile-menu');
    const darkModeToggle = document.getElementById('dark-mode-toggle');

    // Mobile menu toggle
    mobileMenuButton.addEventListener('click', () => {
      const isExpanded = mobileMenuButton.getAttribute('aria-expanded') === 'true';
      mobileMenuButton.setAttribute('aria-expanded', !isExpanded);
      mobileMenu.classList.toggle('hidden');
      mobileMenuButton.querySelector('svg:first-child').classList.toggle('hidden');
      mobileMenuButton.querySelector('svg:last-child').classList.toggle('hidden');
    });

    // Dark mode toggle
    darkModeToggle.addEventListener('click', () => {
      if (document.documentElement.classList.contains('dark')) {
        document.documentElement.classList.remove('dark');
        localStorage.setItem('theme', 'light');
      } else {
        document.documentElement.classList.add('dark');
        localStorage.setItem('theme', 'dark');
      }
    });

    // Check for saved theme preference on load
    if (localStorage.getItem('theme') === 'dark' || (!('theme' in localStorage) && window.matchMedia('(prefers-color-scheme: dark)').matches)) {
      document.documentElement.classList.add('dark');
    } else {
      document.documentElement.classList.remove('dark');
    }
  });
</script>