:root {
    --primary-color: #a53700;
    --white: #fff;
    --black: #000;
}

[data-theme="dark"] {
    --primary-color: #6f2500;
    --white: #000;
    --black: #fff;
}

* {
    margin: 0;
    padding: 0;
    font-family: Arial, Helvetica, sans-serif;
}

main {
    background-color: var(--white);
    transition: .5s;
}

#content {
    padding: 1em;
    max-width: 600px;
    padding-top: 2em;
}

#content p,
#content h1,
#content label {
    color: var(--black);
}

#content a {
    text-decoration: none;
    color: var(--black);
}

.content-animation {
    opacity: 0;
    margin-top: -2em;
    transition: 1s;
}

.input-container {
    margin: 2em 0;
    position: relative;
}

.input-answer {
    width: 100%;
    border: none;
    outline: none;
    background-color: transparent;
    border-bottom: 1px solid var(--black);
    color: var(--black);
}

.input-label {
    position: absolute;
    top: 0;
    transition: .2s;
}

.input-answer:focus ~ .input-label,
.input-answer:valid ~ .input-label {
    top: -1.2em;
    font-size: .8em;
}

textarea {
    width: 100%;
    outline: none;
    background-color: var(--white);
    color: var(--black);
    padding: .2em;
    transition: .5s;
}