ソーシャルログインコンポーネント - Neumorphism Vibrant Complex

<!-- Main container simulating the page background -->
<div class="min-h-screen flex items-center justify-center bg-gray-100 dark:bg-gray-900 p-6">

  <!-- Neumorphic Login Form Card -->
  <div class="w-full max-w-sm p-8 bg-gray-200 dark:bg-gray-800 rounded-2xl shadow-xl shadow-gray-300 dark:shadow-gray-950">

    <h2 class="text-3xl font-bold text-center mb-8 text-gray-800 dark:text-gray-100">Sign In</h2>

    <!-- Social Login Buttons -->
    <div class="grid grid-cols-1 gap-4 mb-6">

      <!-- Google Button -->
      <button class="w-full py-3 px-4 rounded-lg flex items-center justify-center
                     bg-gray-100 dark:bg-gray-700
                     shadow-md shadow-gray-300 dark:shadow-900
                     hover:shadow-lg hover:shadow-gray-400 dark:hover:shadow-950 dark:hover:bg-gray-600
                     active:shadow-inner active:shadow-gray-400 dark:active:shadow-950 dark:active:bg-gray-800
                     transition duration-200 ease-in-out">
        <!-- Placeholder for Google Icon -->
        <span class="font-bold mr-2">G</span>
        <span class="text-gray-800 dark:text-gray-100">Sign in with Google</span>
      </button>

      <!-- Facebook Button -->
      <button class="w-full py-3 px-4 rounded-lg flex items-center justify-center
                     bg-gray-100 dark:bg-gray-700
                     shadow-md shadow-gray-300 dark:shadow-900
                     hover:shadow-lg hover:shadow-gray-400 dark:hover:shadow-950 dark:hover:bg-gray-600
                     active:shadow-inner active:shadow-gray-400 dark:active:shadow-950 dark:active:bg-gray-800
                     transition duration-200 ease-in-out">
        <!-- Placeholder for Facebook Icon -->
        <span class="font-bold mr-2">f</span>
        <span class="text-gray-800 dark:text-gray-100">Sign in with Facebook</span>
      </button>

      <!-- Add more social buttons if needed for complexity -->
            <!-- Apple Button Example -->
            <button class="w-full py-3 px-4 rounded-lg flex items-center justify-center
                     bg-gray-100 dark:bg-gray-700
                     shadow-md shadow-gray-300 dark:shadow-900
                     hover:shadow-lg hover:shadow-gray-400 dark:hover:shadow-950 dark:hover:bg-gray-600
                     active:shadow-inner active:shadow-gray-400 dark:active:shadow-950 dark:active:bg-gray-800
                     transition duration-200 ease-in-out">
        <!-- Placeholder for Apple Icon -->
        <span class="font-bold mr-2"></span>
        <span class="text-gray-800 dark:text-gray-100">Sign in with Apple</span>
      </button>

    </div>

    <div class="text-center text-gray-500 dark:text-gray-400 mb-6">or</div>

    <!-- Email/Password Form -->
    <form>
      <div class="mb-4">
        <input type="email" placeholder="Email" class="w-full py-3 px-4 rounded-lg
               bg-gray-100 dark:bg-gray-700 text-gray-800 dark:text-gray-100
               shadow-inner shadow-gray-300 dark:shadow-900
               focus:outline-none focus:ring-2 focus:ring-blue-500 dark:focus:ring-blue-600
               placeholder-gray-500 dark:placeholder-gray-400
               transition duration-200 ease-in-out">
      </div>
      <div class="mb-6">
        <input type="password" placeholder="Password" class="w-full py-3 px-4 rounded-lg
               bg-gray-100 dark:bg-gray-700 text-gray-800 dark:text-gray-100
               shadow-inner shadow-gray-300 dark:shadow-900
               focus:outline-none focus:ring-2 focus:ring-blue-500 dark:focus:ring-blue-600
               placeholder-gray-500 dark:placeholder-gray-400
               transition duration-200 ease-in-out">
      </div>

      <div class="flex items-center justify-between mb-6">
        <div class="flex items-center">
            <!-- Standard checkbox input -->
            <input id="remember-me" type="checkbox" class="w-4 h-4 text-blue-600 bg-gray-100 border-gray-300 rounded focus:ring-blue-500 dark:focus:ring-blue-600 dark:ring-offset-gray-800 focus:ring-2 dark:bg-gray-700 dark:border-gray-600">
            <label for="remember-me" class="ml-2 block text-sm text-gray-800 dark:text-gray-200">
                Remember me
            </label>
        </div>
        <a href="#" class="text-sm text-blue-600 dark:text-blue-400 hover:underline">Forgot Password?</a>
      </div>


      <!-- Login Button -->
      <button type="submit" class="w-full py-3 px-4 rounded-lg mb-6
              bg-blue-600 text-white font-bold
              shadow-md shadow-blue-500 dark:shadow-blue-900
              hover:bg-blue-700 dark:hover:bg-blue-700
              active:shadow-inner active:shadow-blue-700 dark:active:shadow-blue-950
              transition duration-200 ease-in-out">
        Login
      </button>
    </form>

    <div class="text-center text-sm text-gray-800 dark:text-gray-200">
      Don't have an account?
      <a href="#" class="text-blue-600 dark:text-blue-400 hover:underline font-bold">Sign Up</a>
    </div>

  </div>
</div>