/* 약어 정리 */

/* Accordion */

.accordion details {
    margin: 0 0 10px;
    border: 1px solid #d9d9d9;
    border-radius: 10px;
    background: #ffffff;
    overflow: hidden;
    transition: border-color .2s ease, box-shadow .2s ease;
}

.accordion details:hover {
    border-color: #999;
    box-shadow: 0 2px 8px rgba(0,0,0,.08);
}

.accordion details[open] {
    border-left: 6px solid;
    box-shadow: 0 4px 14px rgba(0,0,0,.10);
}

.book details[open] {border-left-color: var(--blue);}
.paper details[open] {border-left-color: var(--red);}
.patent details[open] {border-left-color: var(--yellow);}


/* Question */

.accordion summary {
    display: flex;
    align-items: flex-start;
    padding: 8px 20px;
    cursor: pointer;
    list-style: none;

    font-size: 1rem;
    color: #222;

    background: #f7f7f7;

    transition: background .2s ease;
}

.accordion summary:hover {
    background: #f7f7f7;
}

.accordion details[open] summary {
    background: #fffdf2;
}


/* --------------------------------------------------
   Research numbering
-------------------------------------------------- */

.accordion summary::-webkit-details-marker {
    display: none;
}

.accordion summary::before {

    content: "[" attr(data-number) "]";

    display: block;

    flex: 0 0 40px;

    margin-right: 8px;

    color: #888;
    font-size: .85rem;
}

/* --------------------------------------------------
   bibliography
-------------------------------------------------- */

.research-citation {
    display: flex;
    flex-direction: column;

    min-width: 0;
}

.research-title {
    display: block;
    color: inherit;
    text-decoration: none;
}

.research-title:hover {
    font-weight: 700;
}

.research-meta {
    display: block;
    font-size: .9rem;
}

.authors {
    display: block;
}

.author-self {
    text-decoration: underline;
}

.journal {
    font-style: italic;
}

.year {
    font-weight: 700;
}

.year::after {
    content:", ";
    font-weight: 400;
}

.volume {
    font-style: italic;
}

.issue::before {
    content: " (";
}

.issue::after {
    content: ")";
}

.pages::before {
    content: ", "
}

.pages::after {
    content: ".";
}


.book details[open] summary::before {color: var(--blue);}
.paper details[open] summary::before {color: var(--red);}
.patent details[open] summary::before {color: var(--yellow);}

.book details[open] > summary {color: var(--blue);}
.paper details[open] > summary {color: var(--red);}
.patent details[open] > summary {color: var(--yellow);}


/* Answer */

.research-content {

    display: grid;

    grid-template-columns:
        2fr 1fr;
    gap: 0;

    padding: 0;
}

.abstract {

    padding: 20px;
    background: #ffffff;
}


.abstract p {

    font-size: .9rem;

    padding-left: 40px;

    background: white;
}

.graphical-abstract {

    display: flex;

    align-items: flex-start;
    justify-content: center;

    padding: 20px;

    background: #ffffff;
}


.graphical-abstract img {

    display: block;

    width: 100%;
    max-width: 100%;

    height: auto;
}