ログインフォームコンポーネント

<div class="flex items-center justify-center min-h-screen bg-gray-100 dark:bg-gray-900">
    <div class="bg-white dark:bg-gray-800 bg-opacity-40 backdrop-blur-lg rounded-lg shadow-lg p-8 max-w-md w-full">
        <h2 class="text-2xl font-bold text-center text-gray-800 dark:text-gray-200 mb-6">Login</h2>
        <form>
            <div class="mb-4">
                <label class="block text-gray-700 dark:text-gray-300 mb-2" for="username">Username</label>
                <input class="block w-full px-4 py-2 border rounded-md bg-transparent border-gray-300 dark:border-gray-600 text-gray-900 dark:text-gray-200 focus:outline-none focus:ring focus:ring-blue-500 dark:focus:ring-blue-400" type="text" id="username" placeholder="Enter your username" required>
            </div>
            <div class="mb-4">
                <label class="block text-gray-700 dark:text-gray-300 mb-2" for="password">Password</label>
                <input class="block w-full px-4 py-2 border rounded-md bg-transparent border-gray-300 dark:border-gray-600 text-gray-900 dark:text-gray-200 focus:outline-none focus:ring focus:ring-blue-500 dark:focus:ring-blue-400" type="password" id="password" placeholder="Enter your password" required>
            </div>
            <div class="flex items-center justify-between mb-4">
                <div class="flex items-center">
                    <input type="checkbox" class="form-checkbox h-4 w-4 text-blue-600 transition duration-150 ease-in-out">
                    <label class="ml-2 text-sm text-gray-600 dark:text-gray-300">Remember me</label>
                </div>
                <a href="#" class="text-sm text-blue-600 hover:underline dark:text-blue-400">Forgot password?</a>
            </div>
            <button type="submit" class="w-full bg-blue-600 hover:bg-blue-500 text-white font-bold py-2 px-4 rounded transition duration-150 ease-in-out">Login</button>
        </form>
        <p class="mt-6 text-center text-gray-600 dark:text-gray-400">Don't have an account? <a href="#" class="text-blue-600 hover:underline dark:text-blue-400">Sign up</a></p>
    </div>
</div>