Минималистичный компонент уведомлений (оттенки серого)

<div class="container mx-auto p-4">

  <!-- Light mode (default) -->
  <div class="bg-white shadow-md rounded-lg p-4 mb-4 hidden dark:block">
    <div class="flex items-start">
      <img class="h-10 w-10 rounded-full mr-4" src="https://randomuser.me/api/portraits/men/1.jpg" alt="Avatar">
      <div class="flex-grow">
        <p class="text-gray-800 font-semibold">New Message</p>
        <p class="text-gray-600 text-sm">You have a new message from John Doe.</p>
      </div>
      <button class="text-gray-500 hover:text-gray-700 focus:outline-none">
        <svg class="h-5 w-5" fill="none" viewBox="0 0 24 24" stroke="currentColor">
          <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M6 18L18 6M6 6l12 12"></path>
        </svg>
      </button>
    </div>
  </div>

  <!-- Dark mode -->
  <div class="bg-gray-800 shadow-md rounded-lg p-4 mb-4 dark:hidden">
    <div class="flex items-start">
      <img class="h-10 w-10 rounded-full mr-4" src="https://randomuser.me/api/portraits/men/1.jpg" alt="Avatar">
      <div class="flex-grow">
        <p class="text-gray-200 font-semibold">New Message</p>
        <p class="text-gray-400 text-sm">You have a new message from John Doe.</p>
      </div>
      <button class="text-gray-500 hover:text-gray-300 focus:outline-none">
        <svg class="h-5 w-5" fill="none" viewBox="0 0 24 24" stroke="currentColor">
          <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M6 18L18 6M6 6l12 12"></path>
        </svg>
      </button>
    </div>
  </div>

</div>