*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    text-decoration: none;
    font-family: 'Open Sans', sans-serif;
}

header{
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: space-around;


    background-color: #35CBBF;
    color: white;
    padding: 20px 0;
}


header nav a{
    color: white;
    margin-right: 30px;
    font-weight: 500;
}


header div.sign-in-up button{

    background-color: #35CBBF;
    font-size: 16px;
    font-weight: 550;
    padding: 4px, 12px;
    border: 2px solid #35CBBF;
    border-radius: 5px;
    margin-left: 20px;
}


header div.sign-in-up button:last-child{
background-color: #35CBBF;
}


div.popup-container{
    position: fixed;
    top:0;
    left:0;
    width:100%;
    height: 100%;
    background-color: rgba(0,0,0,0.5);
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
    display:none;

}

div.popup-container div.popup{
    background-color: #fff;
    width: 350px;
    border-radius: 5px;
    padding: 20px 25px 30px 25px;
}

div.popup-container div.popup h2{
  display:flex;
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 30px;
  color: #35CBBF;
}


div.popup-container div.popup h2 button{
    border: none;
    background-color: transparent;
    outline: none;
    font-size: 18px;
    font-weight: 550;
    color: #35CBBF;
  }

  div.popup-container div.popup input{
      width: 100%;
      margin-bottom: 20px;
      background-color: transparent;
      border:none;
      border-bottom: 2px solid #35CBBF;
      border-radius: 0;
      padding: 5px,0;
      font-weight: 550;
      font-size: 14px;
      outline: none;
    }


  div.popup-container div.popup button.login-btn{
font-weight: 550;
font-style: 15px;
color:white;
background-color: #35CBBF;
padding: 4px,10px;
border:none;
outline:none;
margin-top: 5px;
  }



  div.popup-container div.register{
   background-color: #fff;
  }


  div.popup-container div.register h2{
   color: #35CBBF;
  }

  div.user{
    color: #fff;
   
    padding: 5px 15px;
    border-radius: 5px;
    font-weight: 500;
  }


  div.user a{
    color: #fff;
 
  }

  div.popup-container div.register input{
    border-bottom-color: #35CBBF;
   }


   div.popup-container div.register button.register-btn{
  
    background-color: #35CBBF;
 
      }