*{
    box-sizing: border-box;
}
body{
    background-color: #10101b;
    height: 100vh;
}
.container{
    margin-top: 30px;
}
.half-width{
    height: 570px;
    background-color: #222436;
    padding: 30px;
    text-align: center;
}
.generate-btn{
    margin-top: 140px;
    padding: 50px;
    width: 180px;
    border-radius: 50%;
    border: 8px solid #39458c;
    background-color: #495bc3;
    color: white;
    font-weight: bold;
    font-size: 20px;
    text-align: center;
}
.generate-btn:focus{
    outline: none;
    box-shadow: none;
}
input[type = 'text']{
    background-color: #3D4153;
    border: 2px solid #858299;
    padding: 10px 10px;
    color: #fff;
    width: 80%;
    margin: 0 auto;
    height: 50px;    
}
input[type = 'text']:focus{
    background-color: #3d4153;
    font-size: 20px;   
}
.numbers{
    margin: 30px 0;
}
.calc-button-row{
    width: 100%;
}
.button{
    width: 20%;
    background-color: #425062;
    color: #fff;
    padding: 20px 0;
    display: inline-block;
    margin: 5px;
    margin-right: -3px;
    font-size: 25px;
    border-radius: 10px;
    text-align: center;
    vertical-align: middle;
    cursor: pointer;
}
.submit-btn{
    border: none;
    margin-top: 20px;
    padding: 10px 120px;
    border-radius: 5px;
    color: #fff;
    background-color: #495bc3;
    font-weight: bold;
}
.notify{
    color: #fff;
    margin: 0 auto;
    text-align: center;
    background-color: #222436;
    margin-top: 20px;
    padding: 5px 20px;
    border-radius: 15px;
    display: none;
}
.notify-section{
    width: 35%;
    margin: 0 auto;
}
.action-left{
    color: #ff3C5f;
    margin-top: 10px;
}