Navigation Enhancement Components

<nav class="bg-gray-800 dark:bg-gray-900 p-4">
    <div class="max-w-6xl mx-auto flex justify-between items-center">
        <h1 class="text-white text-xl font-bold">My Portfolio</h1>
        <ul class="flex space-x-4">
            <li><a href="#" class="text-gray-300 dark:text-gray-400 hover:text-white">Home</a></li>
            <li><a href="#" class="text-gray-300 dark:text-gray-400 hover:text-white">About</a></li>
            <li><a href="#" class="text-gray-300 dark:text-gray-400 hover:text-white">Projects</a></li>
            <li><a href="#" class="text-gray-300 dark:text-gray-400 hover:text-white">Contact</a></li>
        </ul>
    </div>
</nav>

<section class="bg-gray-900 dark:bg-gray-800 p-8">
    <div class="max-w-6xl mx-auto text-center">
        <h2 class="text-white text-2xl font-bold">Featured Projects</h2>
        <div class="grid grid-cols-1 md:grid-cols-3 gap-6 mt-6">
            <div class="bg-gray-700 dark:bg-gray-600 p-4 rounded-lg">
                <img src="https://picsum.photos/200/300?random=1" alt="Project 1" class="rounded-lg w-full" />
                <h3 class="text-white font-semibold mt-2">Project 1</h3>
                <p class="text-gray-300 dark:text-gray-400">Description of Project 1.</p>
            </div>
            <div class="bg-gray-700 dark:bg-gray-600 p-4 rounded-lg">
                <img src="https://picsum.photos/200/300?random=2" alt="Project 2" class="rounded-lg w-full" />
                <h3 class="text-white font-semibold mt-2">Project 2</h3>
                <p class="text-gray-300 dark:text-gray-400">Description of Project 2.</p>
            </div>
            <div class="bg-gray-700 dark:bg-gray-600 p-4 rounded-lg">
                <img src="https://picsum.photos/200/300?random=3" alt="Project 3" class="rounded-lg w-full" />
                <h3 class="text-white font-semibold mt-2">Project 3</h3>
                <p class="text-gray-300 dark:text-gray-400">Description of Project 3.</p>
            </div>
        </div>
    </div>
</section>

<footer class="bg-gray-800 dark:bg-gray-900 p-4 mt-8">
    <div class="max-w-6xl mx-auto text-center">
        <p class="text-gray-300 dark:text-gray-400">© 2023 My Portfolio. All rights reserved.</p>
    </div>
</footer>