body{
    margin: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    background-color: rgb(158, 96, 96);
}
#calculator{
    font-family: Arial, sans-serif;
    background-color: black;
    border-radius: 15px;
    max-width: 500px;
    overflow: hidden;

}

#angleModeBtn{
    font-size: 16px;
    padding: 8px 12px;
    width: 60px;
    overflow: hidden;
    text-align: center;
    border: none;
}
#display{
    width: 100%;
    height: 120px;
    padding: 20px;
    font-size: 3.5rem;
    text-align: right;
    border: none;
    background-color: rgb(98, 84, 84);
    color: rgb(255, 255, 255);
    overflow: hidden;
    display: flex;
    box-sizing: border-box;
    align-items: center;




}

#keys{
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;
    padding: 20px;

}

button {
    width: 100px;
    height: 100px;
    border-radius: 50px;
    border: none;
    background-color:grey;
    color: white;
    font-size: 3rem;
    font-weight: bold;
    cursor: pointer;
}
button:hover{
    background-color: rgb(170, 170, 170);
}
button:active{
    background-color: rgb(198, 198, 198);
}
.operator-btn{
    background-color: rgb(255, 174, 0);
}
.operator-btn:hover{
    background-color: rgb(255, 190, 77);
}
.operator-btn:active{
    background-color: rgb(255, 204, 128);
}