OAuth ボタンコンポーネント

<div class="bg-white dark:bg-gray-800 p-6 rounded-lg shadow-lg max-w-sm mx-auto">
    <h2 class="text-2xl font-bold text-center text-blue-600 dark:text-blue-300 mb-4">Sign in with:</h2>
    <div class="flex flex-col space-y-4">
        <a href="#" class="flex items-center justify-center bg-gradient-to-r from-yellow-400 to-red-500 p-4 rounded-lg shadow-md hover:shadow-lg transition duration-300 ease-in-out">
            <img src="https://picsum.photos/20?1" alt="Google Logo" class="mr-3 rounded-full">
            <span class="text-white font-semibold">Google</span>
        </a>
        <a href="#" class="flex items-center justify-center bg-gradient-to-r from-blue-500 to-indigo-600 p-4 rounded-lg shadow-md hover:shadow-lg transition duration-300 ease-in-out">
            <img src="https://picsum.photos/20?2" alt="Facebook Logo" class="mr-3 rounded-full">
            <span class="text-white font-semibold">Facebook</span>
        </a>
        <a href="#" class="flex items-center justify-center bg-gradient-to-r from-purple-500 to-pink-500 p-4 rounded-lg shadow-md hover:shadow-lg transition duration-300 ease-in-out">
            <img src="https://picsum.photos/20?3" alt="Twitter Logo" class="mr-3 rounded-full">
            <span class="text-white font-semibold">Twitter</span>
        </a>
    </div>
</div>

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