body {
    background-color: bisque;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

.calculator
{
    box-shadow: 0 0 25px 7px aqua;
    width: 420px;
    background-color: black;
    padding: 50px;
    border-radius: 25px;
    align-items: center;
}

.display{
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    margin: 50px;
    background-color: azure;
    padding: 5px;
    font-size: 2em;
}

.input {
    font-size: 1.5em;
    width: 100%;
}

.buttons {
    margin-top: 20px;
    display:grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 30px;
}

.single-btn {
    margin-top: 20px;
    display: grid;
    align-items: center;
    justify-items: center;
}

.btn {
    background-color: aqua;
    border-color: orangered;
    padding: 25px 20px;
    font-size: 2em;
    box-shadow: 0 0 20px 4px aqua;
    border-radius: 5px;
}

.btn:hover {
    opacity: .8;
}


h1 {
    color: aqua;
    text-align: center;
    
}

h3 {
    color: aqua;
    text-align: center;
    margin-top: 40px;
}

/* Media query for screens smaller than 700px */
@media only screen and (max-width: 700px) {
    .calculator {

        width: 320px;
        padding: 25px;
        border-radius: 12px;
    }

    .display{
        height: 25px;
        margin: 25px;
        padding: 1px;
        font-size: 1em;
    }

    .input {
        font-size: 1em;
    }

    .buttons {
        margin-top: 10px;
        gap: 18px;
    }
    
    .btn {
        background-color: aqua;
        border-color: orangered;
        padding: 15px 10px;
        font-size: 1em;
        box-shadow: 0 0 10px 2px aqua;
    }



}