SkeuoHeaderコンポーネント

<header class="bg-gray-200 dark:bg-gray-800 shadow-lg dark:shadow-none">
  <div class="container mx-auto px-6 py-4 flex items-center justify-between">
    <div class="text-xl font-semibold text-gray-800 dark:text-white">SkeuoHeader</div>
    <nav class="hidden md:flex space-x-8">
      <a href="#" class="text-gray-800 dark:text-white hover:text-gray-600 dark:hover:text-gray-300 transition duration-300">Home</a>
      <a href="#" class="text-gray-800 dark:text-white hover:text-gray-600 dark:hover:text-gray-300 transition duration-300">About</a>
      <a href="#" class="text-gray-800 dark:text-white hover:text-gray-600 dark:hover:text-gray-300 transition duration-300">Services</a>
      <a href="#" class="text-gray-800 dark:text-white hover:text-gray-600 dark:hover:text-gray-300 transition duration-300">Contact</a>
    </nav>
    <button class="md:hidden text-gray-800 dark:text-white focus:outline-none">
      <svg class="h-6 w-6" fill="none" viewBox="0 0 24 24" stroke="currentColor">
        <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M4 6h16M4 12h16M4 18h16"></path>
      </svg>
    </button>
  </div>
</header>