body {
    font-family: sans-serif;
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background-color: #f2f2f2;
  }
  
  .container {
    background-color: #fff;
    padding: 30px;
    border-radius: 5px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    width: 400px;
  }
  
  .login-form {
    display: flex;
    flex-direction: column;
    gap: 15px;
  }
  
  label {
    font-weight: bold;
  }
  
  input[type="tel"] {
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 3px;
  }
  
  button {
    padding: 10px 20px;
    border: none;
    border-radius: 3px;
    cursor: pointer;
    background-color: #333;
    color: #fff;
  }
  
  #otp-verification {
    display: none;
  }
  
  #message {
    color: red;
    font-weight: bold;
    margin-top: 10px;
  }
  /* login page */
  
/* add product */