index.html

<!DOCTYPE html>
<html lang="fa">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Information storage form</title>
    <link rel="stylesheet" href="./style.css">
</head>

<body>
    <div class="form-container">
        <div class="language-switch">
            <button id="faBtn" class="active">FA</button>
            <button id="enBtn">EN</button>
        </div>
        <h2 id="formTitle">فرم ثبت اطلاعات</h2>
        <form id="userForm">
            <input type="text" id="firstName" placeholder="نام" required>
            <input type="text" id="lastName" placeholder="نام خانوادگی" required>
            <input type="text" id="mobile" placeholder="شماره موبایل" required>
            <button type="submit" id="saveBtn">ذخیره اطلاعات</button>
        </form>
        <button onclick="downloadCSV()" id="downloadBtn">دانلود فایل CSV</button>
        <button onclick="clearLocalStorage()" id="clearBtn">حذف اطلاعات ذخیره شده</button>
    </div>

<script src="./script.js"></script>
</body>
</html>