E-commerce Layout Component

<div class="min-h-screen bg-gray-100 dark:bg-gray-900 flex flex-col">
  <!-- Header -->
  <header class="bg-white dark:bg-gray-800 shadow">
    <div class="container mx-auto px-4 py-4 flex justify-between items-center">
      <h1 class="text-2xl font-bold text-gray-800 dark:text-white">E-Commerce Store</h1>
      <nav class="hidden md:block">
        <ul class="flex space-x-4">
          <li><a href="#" class="text-gray-600 dark:text-gray-300 hover:text-gray-800 dark:hover:text-white">Home</a></li>
          <li><a href="#" class="text-gray-600 dark:text-gray-300 hover:text-gray-800 dark:hover:text-white">Products</a></li>
          <li><a href="#" class="text-gray-600 dark:text-gray-300 hover:text-gray-800 dark:hover:text-white">About</a></li>
          <li><a href="#" class="text-gray-600 dark:text-gray-300 hover:text-gray-800 dark:hover:text-white">Contact</a></li>
        </ul>
      </nav>
      <div class="md:hidden">
        <button class="text-gray-600 dark:text-gray-300 focus:outline-none">
          <svg class="w-6 h-6" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M4 6h16M4 12h16M4 18h16"></path></svg>
        </button>
      </div>
    </div>
  </header>

  <!-- Main Content -->
  <main class="container mx-auto px-4 py-8 flex-grow">
    <div class="grid grid-cols-1 sm:grid-cols-2 md:grid-cols-3 lg:grid-cols-4 gap-6">
      <!-- Product Card 1 -->
      <div class="bg-white dark:bg-gray-800 rounded-lg shadow-md overflow-hidden">
        <img src="https://picsum.photos/seed/product1/400/300" alt="Product Image" class="w-full h-48 object-cover">
        <div class="p-4">
          <h3 class="text-lg font-semibold text-gray-800 dark:text-white">Product Name 1</h3>
          <p class="text-gray-600 dark:text-gray-300 mt-2">$49.99</p>
          <button class="mt-4 bg-gray-800 dark:bg-gray-700 text-white py-2 px-4 rounded-md hover:bg-gray-700 dark:hover:bg-gray-600">Add to Cart</button>
        </div>
      </div>

      <!-- Product Card 2 -->
      <div class="bg-white dark:bg-gray-800 rounded-lg shadow-md overflow-hidden">
        <img src="https://picsum.photos/seed/product2/400/300" alt="Product Image" class="w-full h-48 object-cover">
        <div class="p-4">
          <h3 class="text-lg font-semibold text-gray-800 dark:text-white">Product Name 2</h3>
          <p class="text-gray-600 dark:text-gray-300 mt-2">$29.99</p>
          <button class="mt-4 bg-gray-800 dark:bg-gray-700 text-white py-2 px-4 rounded-md hover:bg-gray-700 dark:hover:bg-gray-600">Add to Cart</button>
        </div>
      </div>

      <!-- Product Card 3 -->
      <div class="bg-white dark:bg-gray-800 rounded-lg shadow-md overflow-hidden">
        <img src="https://picsum.photos/seed/product3/400/300" alt="Product Image" class="w-full h-48 object-cover">
        <div class="p-4">
          <h3 class="text-lg font-semibold text-gray-800 dark:text-white">Product Name 3</h3>
          <p class="text-gray-600 dark:text-gray-300 mt-2">$79.99</p>
          <button class="mt-4 bg-gray-800 dark:bg-gray-700 text-white py-2 px-4 rounded-md hover:bg-gray-700 dark:hover:bg-gray-600">Add to Cart</button>
        </div>
      </div>

      <!-- Product Card 4 -->
      <div class="bg-white dark:bg-gray-800 rounded-lg shadow-md overflow-hidden">
        <img src="https://picsum.photos/seed/product4/400/300" alt="Product Image" class="w-full h-48 object-cover">
        <div class="p-4">
          <h3 class="text-lg font-semibold text-gray-800 dark:text-white">Product Name 4</h3>
          <p class="text-gray-600 dark:text-gray-300 mt-2">$19.99</p>
          <button class="mt-4 bg-gray-800 dark:bg-gray-700 text-white py-2 px-4 rounded-md hover:bg-gray-700 dark:hover:bg-gray-600">Add to Cart</button>
        </div>
      </div>
    </div>
  </main>

  <!-- Footer -->
  <footer class="bg-white dark:bg-gray-800 shadow mt-8">
    <div class="container mx-auto px-4 py-4 text-center text-gray-600 dark:text-gray-300">
      &copy; 2023 E-Commerce Store. All rights reserved.
    </div>
  </footer>
</div>