.container {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    background-color: #bbb;
    font-family: Helvetica;
    
}


#calc-base { 
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    width: 400px;
    height: 750px;
    border: 2px solid black;
    background-color: #000;
    border-radius: 10px 10px 10px 10px;    
    padding: 0px 10px 10px 10px;
    box-shadow: 0px 3px 10px 3px #aaa;
}
#status-bar {
    display: flex;
    justify-content: space-between;
    width: 100%;
    align-items: baseline;
    font-size: 0.6rem;
    color: white;
    text-align: center;
}


#symbols {
    color: white;
}

#symbols > .fa {
    padding: 3px;
    font-size: 0.7rem;
}


#input-screen , #second-value {
    display: flex;
    justify-content: right;
    align-items: end;
    text-align: end;
    margin: 0;
    font-size: 5rem;
    width: 100%;
    background-color: #000;
    color: white;
}

#second-value {
    font-size: 2rem;
}


#input-screen > p {
    margin: 0;
    
}

.keypad {
    display: grid;
    grid-column-start: 1;
    grid-template-columns: repeat(4, 1fr);
    grid-template-rows: repeat(5, 1fr);
    grid-column-gap: 10px;
    height: 60%;
    grid-row-gap: 10px;


}

.keypad  > span {
    display: flex;
    text-align: center;
    justify-content: center;
    cursor: pointer;
    border: border-box;
    line-height: 2rem;
    font-size: 1.5rem;
    align-items: center;
    border-radius: 50%;
    background-color: #505050;
    color: white;

}

.keypad > .grey {
    background-color: #D4D4D2;
    color: #000;

}



.keypad >.operator {
    background-color: #FF9500;
    color: white;
}

.keypad > .double { 
    display: flex;
    grid-column-start: 1;
    grid-column-end: 3;
    grid-row-start: 5;
    border-radius: 100px 100px 100px 100px;
    justify-content: left;
    padding-left: 20px;
}

#active{
    background-color: white;
    color: #ff9500;

}