main{
    padding: 20px;
    background-color: var(--calculator-color);
    box-shadow: -3px 5px 10px 5px black;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    gap: 30px;
    border-radius: 20px;
    width: 320px;
    height: 400px;
    border: 5px solid rgba(0, 0, 0, 0.9);
    z-index: 10;
}

#display{
    background-color: var(--display-color);
    color: var(--display-text-color);
    padding: 10px;
    border-radius: 10px;
    font-size: 30px;
    font-weight: 900;
    font-family: var(--display-font);
    text-align: right;
    box-shadow: inset 0 -2px 10px 10px black;
    height: 60px;
    
}

#keyboard{
    display: grid;
    gap: 10px;
    grid-template-areas: 
    ' actions actions actions actions'
    ' numbers numbers numbers operators'
    ' operators2 operators2 operators2 operators'
    ;
}


#keyboard #actions {
    grid-area: actions;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 10px;
}

#keyboard #actions button{
    width: 100%;
    background-color: var(--buttons-text-color);
    color: var(--buttons-color);
}

#keyboard #numbers{
    grid-area: numbers;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
}

#keyboard #numbers button{
    width: 84px;
    height: 50px;
}

#keyboard #operators{
    grid-area: operators;
    display: flex;
    flex-direction: column;
    gap: 10px;
    place-items: center;
    height: 100%;
    width: 100%;
}

#keyboard #operators button, #keyboard #operators2 button{
    height: 50px;
}

#keyboard #operators2{
    grid-area: operators2;
    display: flex;
    gap: 10px;
    width: 100%;
    height: 100%;
    place-items: center;
}

#keyboard #operators2 #btn-number-0{
    width: 50px;
}

#keyboard button{
    background-color: var(--buttons-color);
    color: var(--buttons-text-color);
    font-size: 20px;
    padding: 10px;
}
