*{
    margin:0;
    padding:0;
    box-sizing: border-box;
}
body{
    font-family: 'Karla' , 'sans-serif';
    background-color: black;
    color: white;
    margin: 2em;
    padding: .3em;
}
.main-container{
    background-color: #ECFDF5;;
    width: 100%;
    height: 90vh;
    padding: 1em;
    border-radius: 5px;
}
.main-container > h1{
    font-size: 2.2rem;
    color: black;
    font-weight: bold;
   padding-top: 1em; 
}
.main-container > h4{
    font-size: 1rem;
    font-weight: 300;
    margin-top: 1.7em;
    color: rgb(164, 2, 102);
}
.main-container > .btn-box{
    border-bottom: 1px solid black;
    width: 100%;
    height: 25vh;
    line-height: 3;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}
.btn-box>p{
    color: black;
    font-size: .8rem;
}
button{
    color: white;
    background-color: #4ADF86;
    width: 65%;
    height: 6vh;
    border: none;
    box-shadow: 0 0 5px #151515;
    font-size: 1rem;
    border-radius: 15px;
}
#alpha-numeric-password{
    font-size: .8rem;
}
.password-box{
    display: flex;
    color: #4ADF86;
    justify-content: space-between;
    font-size: 1.4rem;

    visibility: hidden;

    margin-top: 1.4em;
    margin-bottom: 1.4em;
}
.first-password-box{
    flex-basis:49%;
    height: 10vh;
    background-color: black;
    border-radius: 15px;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow:hidden;
}
.second-password-box{
    flex-basis:49%;
    height: 10vh;
    background-color: black;
    border-radius: 15px;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
}
@media (min-width:600px ) and (max-width:700px){
    .main-container > h1{
        font-size: 3rem;
        color: black;
        font-weight: bold;
        padding-top: 1em; 
    }
    

}
@media (min-width: 701px){
    .main-container > h1{
        font-size: 4rem;
        padding-top: .7em; 
    } 
    .main-container > h4{
        font-size: 2rem;
        margin-top: 1em;
    } 
    button{
        width: 35%;
    }
    .main-container > .btn-box{
        justify-content: start;
    }
}