#principal{
    display: grid;
    box-shadow: var(--shadow);
    border-radius: 5px;
    max-width: 800px;
    margin: 50px auto;
    font-size: 1.3em;
    background-color: white;
}

#principal span{
    font-weight: 500;
}

#principal input, #principal select{
    padding: 6px;
    border-radius: 4px;
    transition: var(--fasttransition);
    background-color: rgb(240, 240, 240);
}

#principal input{
    width: 230px;
    border-left: 6px solid var(--amarelo);
}

#titulo{
    text-align: center;
    border-radius: 5px 5px 0px 0px;
    background-color: var(--amarelo);
    color: white;
    padding: 20px;
    font-size: 1.2em;
}

.linha{
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin: 0px 20px;
}

.linha .l2{
    display: flex;
    grid-template-columns: 2fr 2fr;
    grid-auto-rows: auto;
    width: 100%;
    justify-content: center;
    align-items: center;
}

.line{
    background-color: rgb(226, 226, 226);
    width: 100%;
    height: 1px;
    border: none;
    margin: 15px 0px;
}

.coluna{
    display: inline;
    width: 100%;
}
    .coluna-2{
        display: flex;
        flex-direction: row;
        text-align: right;
        }

        .coluna-2-l{
            float: left;
            text-align: left;
            align-content:flex-end;
            }
            
.input_calc{
    border: none;
    outline: none;
    text-align: right;
    color: black;
    padding: 0px;
}

.input_calc:focus{
    align-content: right;
}

.selecao{
    margin-left: 10px;
    outline: none;
    border: none;
    color: black;
    float: right;
    cursor: pointer;
}

input[type=number]::-webkit-inner-spin-button { 
    -webkit-appearance: none;
}

input[type=number] { 
    -moz-appearance: textfield;
    appearance: textfield;
}

@media (max-width: 800px){

    #principal{
        width: 90%;
    }

    .input_calc{
        width: 50%;
    }

}

@media (max-width: 500px){

    #principal{
        font-size: 1.1em;
    }

    #principal input{
        width: 100%;
    }

    .linha{
        flex-direction: column;
        margin: 5px 20px;
        align-items: initial;
    }

    .input_calc{
        text-align: left;
    }

    .coluna-2{
        margin-top: 15px;
        align-items: center;
        justify-content: space-between;
    } 

}