body{
    background-color: rgb(212, 210, 210);
}
.Calculator{
    width: 400px;
    height: 500px;
    background-color:#F7F7F7 ;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 20px;
    margin: 100px auto;
}

.screen{
    width: 100%;
    margin: 0 auto;
    padding: 10px;
}
.display{
    width: 85%;
    height: 70px;
    background-color: #fff;
    border: none;
    border-radius: 50px;
    margin: 20px auto;
    padding-right: 15px;
    box-shadow: 10px 10px 20px rgba(0, 0, 0, 0.1);
    color: gray;
    font-size: 30px;
    text-align: right;
    word-wrap: break-word;
    word-break: break-all;
    display: flex;
    align-items: center;
    justify-content: end;

}
.btn{
    margin: auto;
    padding: auto;
    width: 100%;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    grid-gap: 10px;}
.btn-calc{
    width: 100%;
    height: 60px;
    background-color: #fff;
    border: none;
    border-radius: 50px;
    box-shadow: 10px 10px 20px rgba(0, 0, 0, 0.1);
    color: black;
    font-size: 20px;
    cursor: pointer;
}
.btn-calc:hover{
    background-color: #F6F4EB;
    transition: background-color 0.3s ease;
}
.zero{
    width: 100%;
    height: 60px;
    background-color: pink;
    border: none;
    border-radius: 50px;
    box-shadow: 10px 10px 20px rgba(0, 0, 0, 0.1);
    color: black;
    font-size: 20px;
    cursor: pointer;
    grid-column: span 2; 
}
@media screen and (max-width: 450px) {
    .Calculator {
        width: 90%;
        height: auto;
        padding: 10px;
    }
    .display {
        width: 70%;
        height: 50px;
        font-size: 20px;
    }
    .btn-calc, .zero {
        height: 50px;
        font-size: 18px;
    }
    .btn {
        grid-template-columns: repeat(2, 1fr);
    }
    
}