*{
    margin:0px;
    padding:0px;
    box-sizing: border-box;
    font-family: "Roboto", sans-serif;
}
body{
    display:flex;
    justify-content: center;
    align-items: center;
  background: linear-gradient(135deg, #1e3c72, #2a5298);
    height:100vh;
}
.calculator{
    
    display:flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    height:400px;
    width:400px;
    border:2px solid black;
    border-radius:16px;
    /* background-color:linear-gradient(45deg,#0a0a0a,#3a4452); */
}
#input{
    height:60px;
    width:350px;
    border:1px solid black;
    font-size: 40px;
    font-weight: 800;
    padding-left:15px;
    border-radius:15px;
    color:black;
}
.hide{
    display:none;
}
button{
    height:55px;
    width:55px;
    margin-top:10px;
    border-radius:50%;
    font-size:20px;
    font-weight:700;
    text-align: center;
    margin-right:25px;
    color:black;
    outline:none;
    border:none;
    cursor:pointer;
    transition:all 0.5s ease-in-out;
}
button:hover{
        transform:scale(1.1);
        background-color:rgb(235, 156, 9);
}
.AC:hover{
    background-color: #ff4d4d;
color: white;
}
.DEL:hover{
    background-color: #ff7043;
color: white;

}
.operator:hover{
    background: linear-gradient(45deg, #2196f3, #21cbf3);
color: white;

}