*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    border: 0;
}
body{
    display: grid;
    place-content: center;
    /* height: 00vh; */
    background: #e0e0e0;

}
.container{
    /* border: 1px red solid; */
    max-width: 500px;
    border-radius: 20px;
    background: #e0e0e0;
    box-shadow:  5px 5px 10px #bebebe,-5px -5px 10px #ffffff;
    padding: 10px;
    padding-bottom: 20px;
}
.screen{
    height:70px;
    text-align: right;
    padding-right:  35px;
    border-radius: 69px;
    background: #e0e0e0;
    box-shadow: inset -7px 7px 14px #acacac,
            inset 7px -7px 14px #ffffff;
    margin-bottom:25px ;
    /* padding: 70px 35px auto 0; */
    font-size: 30px;
    padding-top: 20px;
}
.calc-buttons{
    display: grid;
    grid-template-columns: 24% 24% 24% 24% ;
    gap: 1%;
    justify-content: space-between;
    margin-bottom: 10px;
}

.calc-button{
    padding: 19px 50px;
    font-size: 30px;
    margin-bottom: 10px;
    cursor: pointer;
    border-radius: 69px;
    background: linear-gradient(225deg, #f0f0f0, #cacaca);
    box-shadow:  -7px 7px 14px #acacac,7px -7px 14px #ffffff;
}
#operator{
    background: linear-gradient(45deg, #f87465, #d16155);
    border-radius: 69px;
    padding: 19px 50px;
    font-size: 30px;
    margin-bottom: 10px;
    cursor: pointer;
    /* background: linear-gradient(225deg, #f0f0f0, #cacaca); */
    box-shadow:  -7px 7px 14px #acacac,7px -7px 14px #ffffff;


}
#zero{
    grid-column: span 3;
}
#clear{
    grid-column: span 2;
}

@media only screen and (max-width: 600px) {
    #operator{
        padding: 19px 25px;
    }
    .calc-button{
        padding: 19px 25px;
    }
}