body{
    text-align: center;
    background-image: var(--background-gradient);
}
main{
    text-align: justify;
    display: flex;
    flex-direction: row;
    padding: 10px;
    margin: 10px auto;
    justify-content: space-around;
}

h1{
    margin: 30px auto;
    font-size: 3em;
}
header h2{
    font-size: 2.5em;
}

.div-calculator{
    width: 45%;
    margin: 10px;
    padding: 20px 0;
    border: 1px solid black;
    border-radius: 25px;
    width: 70%;
    background-color: var(--transparent-gray);
}

#div-results{
    padding: 20px;
    row-gap: 10px;
}

#section-list{
    width: 90%;
    padding: 0 30px;
}

h3, .span-validation{
    font-weight: bold;
}
#div-results p{
    margin: 40px 5px;
}
#div-results h3{
    display: inline;
}

#span-values, #span-equipment, #span-analyte, #span-batch, #span-expirations-date{
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin: 30px 10px;
    padding: 0 40px;
}

#div-values input{
    width: 70%;
    cursor: text;
    font-size: 1em;
    font-weight: bold;
    border: none;
    outline: none;
    padding: 10px 15px;
    border-radius: 10px;
    box-shadow: 0px 0px 3px 1px;
}
#div-values input:focus{
    box-shadow: inset 0px 0px 0px 2px;
    background-color: var(--hover-gray);
}

#button-add-value, #save-button, .li-buttons, .clear-button{
    margin: 15px 20px;
    padding: 10px;
    width: 90%;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    font-weight: bold;
    font-size: 1.1em;
    outline: none;
    box-shadow: 0px 0px 3px 1px;
}
.li-buttons{
    margin: 15px 20px;
    padding: 10px;
    width: 100px;
    font-size: 0.7em;
}

#button-add-value:hover, #save-button:hover, .li-buttons:hover, .clear-button:hover{
    box-shadow: 0px 0px 10px 2px;
    background-color: var(--hover-gray);
    cursor: pointer;
}
#button-add-value:active, #save-button:active, .li-buttons:active, .clear-button:active{
    box-shadow: inset 0px 0px 5px 2px;
    background-color: var(--active-gray);
}

ul{
    margin: 30px auto;
    padding: 20px;
    list-style-type: disc;
    list-style-position: outside;
}
h2{
    text-align: center;
    margin-top: 20px;
    margin-bottom: 40px;
}

li, .outputs{
    margin: 15px;
    font-weight: 500;
    font-size: 1.4em;
}
li{
    display: flex;
    align-items: center;
    justify-content: space-between;
}

#validation{
    display: flex;
    justify-content: space-around;
    margin: 20px auto;
    padding: 10px;
}

.span-validation{
    font-size: 1.4em;
}

.validation-id{
    font-size: 1em;
    font-weight: bold;
    text-transform: uppercase;
    padding: 5px 20px;
    cursor: text;
    width: 350px;
    background-color: transparent;
    box-shadow: none;
    border: none;
    border-bottom: 1px solid var(--standard-black);
    outline: none;
}

#save-button{
    margin: 30px auto;
    width: 200px;
}



/* RESPONSIVIDADE GERAL */
@media (max-width: 1024px) {
    main {
        flex-direction: column;
        align-items: center;
    }

    .div-calculator {
        width: 90%;
    }

    #section-list {
        width: 100%;
        padding: 0 15px;
    }

    #span-values, #span-equipment, #span-analyte, #span-batch, #span-expirations-date {
        flex-direction: column;
        align-items: flex-start;
        padding: 0 15px;
    }

    #div-values input {
        width: 100%;
        margin-top: 10px;
    }

    li {
        flex-direction: column;
        align-items: flex-start;
    }

    .li-buttons {
        width: 100%;
        font-size: 0.9em;
        margin: 10px 0;
    }

    #validation {
        flex-direction: column;
        align-items: center;
    }

    .validation-id {
        width: 90%;
        margin: 10px 0;
    }

    #save-button {
        width: 90%;
    }
}

@media (max-width: 600px) {
    h2, h3 {
        font-size: 1.2em;
    }

    .span-validation {
        font-size: 1.1em;
    }

    li, .outputs {
        font-size: 1.1em;
    }

    #button-add-value, .clear-button {
        width: 100%;
        margin: 10px 0;
        font-size: 1em;
    }

    .div-calculator {
        padding: 10px;
    }

    ul {
        padding: 10px;
    }
}