html {
    scroll-behavior: smooth;
}

:is(h1, h2, h3, h4, h5, h6):target,
:is(h1, h2, h3, h4, h5, h6):target ~ * {
    background-color: rgba(255, 255, 0, 0.3);
}
:is(h1, h2, h3, h4, h5, h6):target ~ :is(h1, h2, h3, h4, h5, h6):not(:target),
:is(h1, h2, h3, h4, h5, h6):target ~ :is(h1, h2, h3, h4, h5, h6):not(:target) ~ * {
    background-color: unset;
}

.choices label {
    display: block;
    cursor: pointer;
    min-width: 8em;
    padding: 0.1em 0.5em;
    border: 1px solid #e4e4e4;
}
.choices label:nth-child(2n) {
    background-color: #efefef;
}
.choices label:has(input:checked) {
    background-color: #dcdcdc;
}
.choices label:not(:last-child) {
    border-bottom: none;
}
.choices input {
    width: 0;
    height: 0;
    opacity: 0;
    position: absolute;
}
@media screen and (min-width: 60em) {
    .choices {
        float: left;
        margin: 0 1em 0 0;
    }
}

.tabbed-set hr {
    margin: 0.5em 0;
    background-color: #737373;
}

p:has(.recto:checked) + .tabbed-set :is(hr, hr ~ *) {
    display: none;
}
label:has(.recto), label:has(.verso) {
    cursor: pointer;
}

p:has(.recto):has(.verso) + .tabbed-set {
    border: 0.05rem solid var(--md-default-fg-color--lightest);
    border-radius: 0.1rem;
    box-shadow: 0 0 5px var(--md-default-fg-color);
}
p:has(.recto):has(.verso) + .tabbed-set .tabbed-block > * {
    margin-left: 1.25em;
    margin-right: 1.25em;
    text-align: center;
}