Brutalist Sticky Navigation Component

<nav class="bg-gray-900 border-b-4 border-gray-100 sticky top-0 z-50 font-mono">
  <div class="container mx-auto px-4 py-6 flex flex-wrap justify-between items-center">
    <div class="text-gray-100 text-4xl font-extrabold uppercase tracking-tighter">
      <a href="#" class="hover:text-gray-400 transition duration-300 ease-in-out">THE BLOG</a>
    </div>
    <div class="block lg:hidden">
      <button class="text-gray-100 focus:outline-none focus:text-gray-400">
        <svg class="h-8 w-8" 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 12h16m-7 6h7"></path>
        </svg>
      </button>
    </div>
    <div class="w-full lg:w-auto lg:flex flex-grow lg:flex-grow-0 hidden lg:block mt-4 lg:mt-0">
      <ul class="flex flex-col lg:flex-row space-y-4 lg:space-y-0 lg:space-x-8 text-xl font-bold uppercase">
        <li>
          <a href="#" class="block text-gray-100 hover:text-gray-400 border-b-2 border-transparent hover:border-gray-400 pb-1 transition duration-300 ease-in-out">Home</a>
        </li>
        <li>
          <a href="#" class="block text-gray-100 hover:text-gray-400 border-b-2 border-transparent hover:border-gray-400 pb-1 transition duration-300 ease-in-out">Articles</a>
        </li>
        <li>
          <a href="#" class="block text-gray-100 hover:text-gray-400 border-b-2 border-transparent hover:border-gray-400 pb-1 transition duration-300 ease-in-out">About</a>
        </li>
        <li>
          <a href="#" class="block text-gray-100 hover:text-gray-400 border-b-2 border-transparent hover:border-gray-400 pb-1 transition duration-300 ease-in-out">Contact</a>
        </li>
      </ul>
    </div>
  </div>
  <div class="bg-gray-800 border-t-4 border-gray-100 py-3">
    <div class="container mx-auto px-4 flex flex-wrap justify-center lg:justify-between items-center text-gray-300 text-sm">
      <div class="tracking-wide mb-2 lg:mb-0">
        FEATURED TOPICS: <span class="font-bold">TECHNOLOGY / DESIGN / ART / CULTURE</span>
      </div>
      <div class="flex space-x-4">
        <input type="text" placeholder="SEARCH THE VOID..." class="px-3 py-1 bg-gray-700 text-gray-100 placeholder-gray-400 border-2 border-gray-100 focus:outline-none focus:border-gray-400 text-sm">
        <button class="bg-gray-600 text-gray-100 px-4 py-1 border-2 border-gray-100 hover:bg-gray-400 hover:text-gray-900 transition duration-300 ease-in-out">GO</button>
      </div>
    </div>
  </div>
</nav>