会话超时警报组件

<div class="fixed inset-0 z-50 flex items-center justify-center bg-gray-900 bg-opacity-75 p-4 dark:bg-black dark:bg-opacity-80">
  <div class="w-full max-w-md overflow-hidden rounded-lg bg-gray-800 shadow-2xl dark:bg-gray-900 border border-blue-700 dark:border-blue-900">
    <div class="bg-blue-700 p-4 text-white dark:bg-blue-900">
      <h3 class="text-xl font-bold">Session Expiring Soon!</h3>
    </div>
    <div class="p-6 text-gray-200 dark:text-gray-300">
      <p class="mb-4 leading-relaxed">
        Your session is about to expire due to inactivity. To continue planning your adventure, please choose an option below.
      </p>
      <div class="mb-6 flex items-center justify-center space-x-3 text-sm">
        <svg class="h-6 w-6 text-yellow-400" 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="M12 9v2m0 4h.01m-6.938 4h13.856c1.54 0 2.502-1.667 1.732-3L13.732 4c-.77-1.333-2.694-1.333-3.464 0L3.34 16c-.77 1.333.192 3 1.732 3z"></path>
        </svg>
        <span class="font-semibold text-yellow-200">Remaining time:</span>
        <span class="font-mono text-lg text-yellow-100">01:59</span>
      </div>
      <p class="mb-6 text-center text-sm italic text-gray-400 dark:text-gray-500">
        (Your data will be saved if you extend your session.)
      </p>

      <div class="flex flex-col space-y-4 sm:flex-row sm:space-x-4 sm:space-y-0">
        <button class="flex-1 rounded-md bg-blue-600 px-6 py-3 text-lg font-semibold text-white shadow-lg transition-colors duration-200 hover:bg-blue-500 focus:outline-none focus:ring-2 focus:ring-blue-400 focus:ring-offset-2 focus:ring-offset-gray-800 dark:bg-blue-700 dark:hover:bg-blue-600 dark:focus:ring-blue-500">
          Extend Session
        </button>
        <button class="flex-1 rounded-md border border-gray-600 px-6 py-3 text-lg font-semibold text-gray-300 shadow-md transition-colors duration-200 hover:bg-gray-700 hover:text-white focus:outline-none focus:ring-2 focus:ring-gray-500 focus:ring-offset-2 focus:ring-offset-gray-800 dark:text-gray-400 dark:hover:bg-gray-800 dark:hover:text-gray-200">
          Log Out
        </button>
      </div>
    </div>
  </div>
</div>