 class="header__nav-link" href="./login.html">Login</a>
                    </li>
                </ul>
            </nav>
        </header>
        <main class="calculator">
            <div class="calculator__container" data-math-container>
                <h1 class="calculator__title">Calculate pokemons</h1>
                <div class="calculator__field">
                    <input class="calculator__input" data-math-value="first" placeholder="Enter first value...">
                    <select class="cal