.arrow {
    display: inline;
}

.arrow:before{
    font-family: "Font Awesome 5 Free";
    font-weight: 900;
    font-size: 1em;
    color: #000;
}

.open .arrow:before{
    content: "\f146";
}

.closed .arrow:before{
    content: "\f0fe";
}

.navigation_show ul ul{
    margin-left: 1em;
}

.repository .rep_folder,
.repository .image,
.repository .link{
    display: inline;
}

.repository .content{
    margin: 0.5em;
    background-color: #fff;
}

.news_title{
    font-size: 1.5em;
    font-weight: bold;
}

.soisft_nsf_contents .download_link {
    display: inline-block;
    white-space: nowrap;
    vertical-align: baseline;
}

.soisft_nsf_contents .download_link a {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 10px;
    border: 1px solid #dadde1;
    border-radius: 8px;
    background: #fafbfc;
    text-decoration: none;
    color: #333;
    font-weight: 600;
    font-size: 0.95rem;
    line-height: 1;
    transition: background .18s ease, border-color .18s ease, color .18s ease, transform .12s ease, box-shadow .18s ease;
    box-shadow: 0 0 0 rgba(0,0,0,0);
}

.soisft_nsf_contents .download_link a:hover {
    background: #eef6ff;
    border-color: #2f78ff;
    color: #2f78ff;
    transform: translateY(-1px);
    box-shadow: 0 2px 6px rgba(0,0,0,.08);
}

.soisft_nsf_contents .download_link a:active {
    transform: translateY(0);
    box-shadow: 0 1px 2px rgba(0,0,0,.12) inset;
}

.soisft_nsf_contents .download_link a:focus-visible {
    outline: 2px solid #2f78ff;
    outline-offset: 2px;
}

.soisft_nsf_contents .download_link .fa-file-pdf {
    color: #cf3c31;
    font-size: 1.05rem;
    flex: 0 0 auto;
    transition: color .18s ease;
}

.soisft_nsf_contents .download_link a:hover .fa-file-pdf {
    color: #b52f26;
}

.soisft_nsf_contents .article-meta {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    white-space: nowrap;
    color: #666;
    font-size: 95%;
}

.soisft_nsf_contents .issues-page {
    margin-bottom: 1.5rem;
}

.soisft_nsf_contents .issues-index-wrap {
    background: #fff;
    border: 1px solid #e7ecf2;
    border-radius: 12px;
    padding: 1rem 1.1rem;
    box-shadow: 0 4px 14px rgba(17, 24, 39, 0.04);
}

.soisft_nsf_contents .issues-index-wrap.is-hidden {
    display: none;
}

.soisft_nsf_contents .issues-index-title {
    margin: 0 0 .85rem;
    font-size: 1.2rem;
    font-weight: 700;
    color: #1c3c59;
}

.soisft_nsf_contents .issues-index {
    display: grid;
    grid-template-columns: repeat(7, minmax(0, 1fr));
    gap: 1.05rem 1.2rem;
}

.soisft_nsf_contents .issues-year-group {
    min-width: 0;
}

.soisft_nsf_contents .issues-year-label {
    display: inline-flex;
    align-items: center;
    margin-bottom: .55rem;
    padding: .18rem .62rem;
    border-radius: .55rem;
    background: linear-gradient(180deg, #f7f9fc 0%, #edf2f9 100%);
    border: 1px solid #dbe5f2;
    color: #2f3e52;
    font-size: 1.45rem;
    font-weight: 800;
    letter-spacing: .01em;
    line-height: 1.1;
}

.soisft_nsf_contents .issues-year-items {
    display: grid;
    gap: .2rem;
}

.soisft_nsf_contents .issues-index-link {
    display: inline-grid;
    align-items: start;
    justify-items: start;
    gap: .25rem;
    padding: .08rem 0;
    text-decoration: none;
    font-size: 1.22rem;
    line-height: 1.4;
    transition: color .18s ease, transform .12s ease;
}

.soisft_nsf_contents .issues-index-link:hover {
    transform: translateY(-1px);
}

.soisft_nsf_contents .issues-index-main {
    display: block;
    white-space: nowrap;
}

.soisft_nsf_contents .issues-online-first-row {
    display: block;
    line-height: 1;
}

.soisft_nsf_contents .issues-online-first {
    font-size: .8rem;
    font-weight: 600;
    color: #7a4a00;
    background: #fff5e8;
    border: 1px solid #ffd7a7;
    border-radius: 999px;
    padding: .14rem .45rem;
    white-space: nowrap;
    line-height: 1.1;
    vertical-align: middle;
}

.soisft_nsf_contents .section_margin_scroll {
    scroll-margin-top: 6rem;
}

.soisft_nsf_contents .issues-wrap,
.soisft_nsf_contents .issues-wrap > section.section_margin_scroll {
    overflow: visible;
}

.soisft_nsf_contents .issues-wrap > section.section_margin_scroll {
    display: none;
    opacity: 0;
    transform: translateY(6px);
    transition: opacity .18s ease, transform .18s ease;
}

.soisft_nsf_contents .issues-wrap > section.section_margin_scroll:target {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 260px;
    gap: 1rem 1.5rem;
    align-items: start;
    opacity: 1;
    transform: translateY(0);
    background: #fff;
    border: 1px solid #e6e8eb;
    border-radius: 12px;
    padding: 1rem 1rem .5rem;
    box-shadow: 0 2px 10px rgba(0,0,0,.06);
}

.soisft_nsf_contents .issues-wrap > section.section_margin_scroll:target > div[style*="clear"] {
    display: none;
}

.soisft_nsf_contents .issues-wrap > section.section_margin_scroll:target > h3,
.soisft_nsf_contents .issues-wrap > section.section_margin_scroll:target > ul {
    grid-column: 1;
}

.soisft_nsf_contents .issues-wrap > section.section_margin_scroll:target > .issue-cover {
    grid-column: 2;
    grid-row: 1 / span 3;
    justify-self: end;
    width: 260px;
    box-sizing: border-box;
    border: 1px solid #ccc;
    padding: .5rem;
    background: #fff;
    position: sticky;
    top: 1rem;
}

.soisft_nsf_contents .issues-wrap > section.section_margin_scroll:target > .issue-back {
    grid-column: 1 / -1;
}

.soisft_nsf_contents .issues-wrap > section.section_margin_scroll:target h3 {
    position: relative;
    padding-left: .75rem;
}

.soisft_nsf_contents .issues-wrap > section.section_margin_scroll:target h3::before {
    content: "";
    position: absolute;
    left: 0;
    top: .25em;
    bottom: .25em;
    width: 4px;
    border-radius: 2px;
}

.soisft_nsf_contents .issue-cover-img {
    display: block;
    width: 100%;
    height: auto;
    border: 1px solid #e6e8eb;
}

.soisft_nsf_contents .issue-cover-text {
    margin-top: .6rem;
    font-size: 1.1em;
    color: #444;
    line-height: 1.3;
    text-align: center;
    font-weight: 700;
}

.soisft_nsf_contents .issue-back {
    display: block;
    color: #317ead;
    text-decoration: none;
    font-weight: 600;
    padding: 2em 2em;
}

.soisft_nsf_contents .issue-back:hover {
    text-decoration: underline;
}

.soisft_nsf_contents .summary {
    margin-top: 0.5em;
    background: #f9f9f9;
    font-size: 1em;
}

.soisft_nsf_contents summary {
    font-weight: 600;
}

.soisft_nsf_contents .quote_summary {
    font-weight: normal;
    cursor: pointer;
    color: #317ead;
}

.soisft_nsf_contents .quote_summary:hover {
    text-decoration: underline;
}

.soisft_nsf_contents .summary-title {
    font-weight: 600;
    margin-bottom: .4rem;
}

.soisft_nsf_contents .summary-text {
    position: relative;
    line-height: 1.45;
    color: #333;
}

.soisft_nsf_contents .summary-text.is-clamped {
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 3;
    overflow: hidden;
}

.soisft_nsf_contents .summary-text.is-clamped::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    height: 2.2em;
    background: linear-gradient(to bottom, rgba(249,249,249,0), rgba(249,249,249,1));
    pointer-events: none;
}

.soisft_nsf_contents .summary-toggle {
    margin-top: .45rem;
    padding: 0;
    border: 0;
    background: none;
    cursor: pointer !important;
    font-weight: 600;
    color: #317ead;
}

.soisft_nsf_contents .summary-toggle:hover {
    text-decoration: underline;
}

.soisft_nsf_contents .summary-toggle.is-hidden {
    display: none;
}

.soisft_nsf_contents .summary-text p {
    margin: 0;
}

.soisft_nsf_contents .article-item {
    margin-top: 2rem;
    padding-top: 2rem;
    padding-left: 0;
    border-top: 2px solid #f0f2f4;
}

.soisft_nsf_contents .article-item > .text > b {
    display: block;
    font-size: 1.2em;
    line-height: 1.35;
    margin-bottom: .4rem;
    color: #1f2933;
}

.soisft_nsf_contents .article-item .summary-block {
    margin-top: 1rem !important;
}

.soisft_nsf_contents .issues-page:has(.issues-wrap > section.section_margin_scroll:target) .issues-index-wrap {
    display: none;
}

@media (max-width: 960px) {
    .soisft_nsf_contents .issues-index {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 900px) {
    .soisft_nsf_contents .issues-wrap > section.section_margin_scroll:target {
        grid-template-columns: 1fr;
    }

    .soisft_nsf_contents .issues-wrap > section.section_margin_scroll:target > .issue-cover {
        grid-column: 1;
        grid-row: auto;
        justify-self: start;
        width: 100%;
        max-width: 360px;
        margin-bottom: .75rem;
        position: static;
        top: auto;
    }
}

@media (max-width: 640px) {
    .soisft_nsf_contents .article-meta {
        white-space: normal;
    }

    .soisft_nsf_contents .issues-index-wrap {
        padding: .8rem;
    }

    .soisft_nsf_contents .issues-index {
        grid-template-columns: 1fr;
    }

    .soisft_nsf_contents .issues-year-label {
        font-size: 1.45rem;
    }

    .soisft_nsf_contents .issues-wrap > section.section_margin_scroll:target {
        padding: .85rem .85rem .35rem;
    }
}