.nav a, .nav label {
    display: block;
    padding: 1rem;
    color: #000;
    -webkit-transition: all .25s ease-in;
    transition: all .25s ease-in;
}

    .nav a:focus, .nav a:hover, .nav label:focus, .nav label:hover {
        color: #000;
    }

.nav label {
    cursor: pointer;
}

.group-list a, .group-list label {
    padding-left: 2rem;
    box-shadow: inset 0 -1px #37373736;
}

    .group-list a:focus, .group-list a:hover, .group-list label:focus, .group-list label:hover {
        background: #ffffff;
    }

.sub-group-list a, .sub-group-list label {
    padding-left: 4rem;
    box-shadow: inset 0 -1px #474747;
}

    .sub-group-list a:focus, .sub-group-list a:hover, .sub-group-list label:focus, .sub-group-list label:hover {
        background: #fff;
    }

.sub-sub-group-list a, .sub-sub-group-list label {
    padding-left: 6rem;
    box-shadow: inset 0 -1px #575757;
}

    .sub-sub-group-list a:focus, .sub-sub-group-list a:hover, .sub-sub-group-list label:focus, .sub-sub-group-list label:hover {
        background: #333333;
    }

.group-list, .sub-group-list, .sub-sub-group-list {
    height: 100%;
    max-height: 0;
    overflow: hidden;
    -webkit-transition: max-height .5s ease-in-out;
    transition: max-height .5s ease-in-out;
}

.nav__list input[type=checkbox]:checked + label + ul { /* reset the height when checkbox is checked */
    max-height: 100%;
}

.nav__list li {
    list-style: none;
}

li.answer {
    padding: 20px;
}

ul.nav__list {
    padding: 0 5vw;
}

label.base-category, label.question {
    font-size: 15px;
    font-weight: 600;
}

ul.sub-group-list {
    padding: 0 0 0 12px;
}

label.f-lvl-label {
    font-weight: 600 !important;
    font-size: 14px;
    letter-spacing: 1px;
}

label.s-lvl-label {
    font-size: 13px;
    font-weight: 600;
    border-top: 1px solid #333;
}

p.answer {
    padding-left: 23px;
    font-size: 14px;
    line-height: 25px;
}

span.fa.fa-angle-right {
    padding-right: 5px;
}
label.f-lvl-label:hover {
    background-color: #f8f8f8;
    transition: 1s;
    border-radius: 4px;
    letter-spacing: 2px;
}
a.links {
    padding: 0;
    margin: 0;
    display: contents;
    font-weight: 600;
}