*{
    margin:0;
    box-sizing: border-box;
    padding: 0;
    font-family:Arial, Helvetica, sans-serif;
}
body{
    width: 100%;
    height:100vh;
    display:flex;
    justify-content: center;
    align-items: center;
    background: linear-gradient(45deg,#0a0a0a,#3a4452);
}
.calculator{
    border: 1px solid #717377;
    border-radius: 16px;
    padding:20px;
    background:transparent;
    box-shadow: 0px 3px 15px rgba(113,115,119,0.5);
}
input{
    width:320px;
    border:none;
    padding:24px;
    background: transparent;
    box-shadow: 0px 3px 15px rgba(84,84,84,0.1);
    font-size: 40px;
    text-align: right;
    cursor: pointer;
    color: #ffffff;
}
input::placeholder{
    color:white;
}
button{
    border:none;
    height:60px;
    width:60px;
    margin:10px;
    border-radius: 50%;
    background: transparent;
    color:#ffffff;
    box-shadow: -8px -8px 15px rgba(255,255,255,0.1);
    font-size:20px;
    cursor: pointer;
}
.equalbt{
    background-color: #fb7c14;

}
.operator{
    color:#6dee00;
}
button:hover {
    background-color: rgba(255, 255, 255, 0.1);
    transform: scale(1.05);
}
.equalbt {
    background-color: #fb7c14;
    color: white;
}