JunsikChoi

<script lang="ts">
	const digitStyle =
		'w-12 h-12 text-xl font-bold text-center text-gray-800 bg-gray-200 rounded-md focus:outline-none focus:ring-2 focus:ring-primary-500 focus:ring-opacity-50';

	const handleKeyup = (e: KeyboardEvent) => {
		const target = e.target as HTMLInputElement;
		const next = target.dataset.next;
		const previous = target.dataset.previous;
		const value = target.value;