.digit-box{display:inline-flex;align-items:center;justify-content:center;width:40px;height:50px;background:#f8fafc;border:1px solid #e2e8f0;border-radius:.5rem;margin-right:4px;font-weight:700;color:#1e293b}.check-digit-box{background:#eef2ff;border:2px dashed #4f46e5;color:#4f46e5}