@import url('https://fonts.googleapis.com/css2?family=Open+Sans:wght@300;600&display=swap');

* {
    font-family: 'Open Sans', sans-serif;
}

body {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    background-color: #f7f7f7;
}

body h1{
    color: coral;
}

body h3 {
    color: coral;
}

.calc {
    display: flex;
    width: auto;
    height: 30px;
    align-items: center;
    align-content: space-between;
    justify-content: center;    
}

.calc h3 {
    flex-wrap: nowrap;
    padding-right: 10px;
    padding-left: 5px;
    color: chocolate;
}

.calc input {
    padding-right: 10px;
    margin-right: 10px;
    width: 180px;
    font-size: 14pt;
    font-weight: bold;
    color: coral;
}

.btn {
    display: flex;
    padding: 15px;
    font-weight: bold;
}

.btn button {
    align-items: center;
    /* background-color: #f7f7f7; */
    margin: 10px;
    font-weight: 600;
}

.btnMais {
    color: lightcyan;
    background-color: cornflowerblue;
    border-color: cornflowerblue;
}

.btnMenos {
    color: lightcyan;
    border-color: lightcoral;
    background-color: lightcoral;
}

#result {
    display: flex;
    align-items: center;
    font-size: 18pt;
    font-weight: bolder;
    color: chocolate;
}

@media (max-width: 650px) {
    body {
        display: flex;
        flex-direction: column;
        justify-content: space-between;        
        width: 100%;
    }

    body h1 {
        font-size: 16pt;
    }

    .calc {
        flex-direction: column;
        margin: 15px;
        align-content: center;
        flex: 1;
    }
}