/** Sticky sidebar and table of contents. */
.article-sidebar-card {
    overflow: hidden;
}
.article-toc-card {
    padding: 0;
    background: var(--color-white);
    box-shadow: 0 10px 34px rgba(11, 29, 58, .07);
}
.article-card-heading {
    display: flex;
    min-height: 58px;
    padding: 0 22px;
    align-items: center;
    gap: 11px;
    border-bottom: 1px solid var(--color-line);
    background: linear-gradient(180deg, #FFFFFF, #F9FBFA);
}
.article-card-heading > span {
    display: block;
    width: 3px;
    height: 22px;
    border-radius: 999px;
    background: var(--color-secondary);
}
.article-card-heading h3 {
    margin: 0;
    font-size: 1rem;
}
.article-toc-list {
    max-height: 500px;
    padding: 18px 22px 22px;
    overflow-y: auto;
    counter-reset: toc-h2;
}
.article-toc-item {
    position: relative;
}
.article-toc-item--h2 {
    counter-increment: toc-h2;
    counter-reset: toc-h3;
}
.article-toc-item--h3 {
    padding-left: 25px;
    counter-increment: toc-h3;
}
.article-toc-item a {
    display: grid;
    padding: 5px 8px;
    border-radius: 6px;
    grid-template-columns: 32px minmax(0, 1fr);
    gap: 3px;
    color: #52606A;
    transition: color .15s ease, background-color .15s ease;
}
.article-toc-item--h2 a::before {
    color: var(--color-secondary-text);
    font-weight: 750;
    content: counter(toc-h2) ".";
}
.article-toc-item--h3 a::before {
    color: #81909A;
    font-size: .82rem;
    content: counter(toc-h2) "." counter(toc-h3);
}
.article-toc-item a:hover,
.article-toc-item a.is-active {
    background: rgba(76, 175, 80, .09);
    color: var(--color-primary);
}
.article-toc-list::-webkit-scrollbar {
    width: 5px;
}
.article-toc-list::-webkit-scrollbar-thumb {
    border-radius: 999px;
    background: #C9D5D0;
}
.article-sidebar-cta {
    position: relative;
    padding: 27px;
    overflow: hidden;
    border: 1px solid rgba(76, 175, 80, .25);
    background:
        radial-gradient(circle at 100% 0, rgba(76, 175, 80, .16), transparent 36%),
        #EDF6F0;
    color: var(--color-ink);
    box-shadow: 0 12px 34px rgba(11, 29, 58, .07);
}
.article-sidebar-cta::after {
    position: absolute;
    right: -32px;
    bottom: -46px;
    width: 130px;
    height: 130px;
    border-radius: 50%;
    background: rgba(76, 175, 80, .09);
    content: "";
}
.article-sidebar-cta h3 {
    position: relative;
    z-index: 1;
    margin-bottom: 12px;
    color: var(--color-primary);
    font-size: 1.35rem;
}
.article-sidebar-cta p {
    position: relative;
    z-index: 1;
    color: #5D6A71;
}
.article-cta-eyebrow {
    margin: 0 0 9px !important;
    color: var(--color-secondary-text) !important;
    font-size: .72rem !important;
    font-weight: 850;
    letter-spacing: .11em;
    text-transform: uppercase;
}
.article-sidebar-cta .button {
    position: relative;
    z-index: 1;
    background: var(--color-primary);
}
.article-sidebar-cta .button:hover {
    background: #142B51;
}
@media (max-width: 1000px) {
    .article-hero-grid {
        grid-template-columns: 1fr;
        gap: 28px;
    }
    .article-featured-image--hero {
        justify-self: start;
        width: min(100%, 620px);
    }
}
@media (max-width: 767px) {
    .article-breadcrumbs {
        margin-bottom: 22px;
    }
    .article-breadcrumbs li:last-child {
        display: none;
    }
    .article-featured-image--hero {
        aspect-ratio: 4 / 3;
    }
}


/* Article layout refinements v1.3.3 */
.article-layout {
    grid-template-columns: minmax(0, 900px) 320px;
    gap: 40px;
    justify-content: center;
}
.article-sidebar {
    width: 320px;
}
.article-card-heading {
    min-height: 50px;
    padding: 0 18px;
    gap: 9px;
}
.article-card-heading > span {
    height: 19px;
}
.article-card-heading h3 {
    font-size: .95rem;
}
.article-toc-list {
    max-height: min(55vh, 480px);
    padding: 12px 15px 15px;
    overflow-y: auto;
}
.article-toc-item a {
    padding: 4px 6px;
    grid-template-columns: 27px minmax(0, 1fr);
    gap: 2px;
    font-size: .82rem;
    line-height: 1.42;
}
.article-toc-item--h3 {
    padding-left: 13px;
}
.article-toc-item--h3 a {
    padding-top: 3px;
    padding-bottom: 3px;
    grid-template-columns: 15px minmax(0, 1fr);
    gap: 5px;
    font-size: .79rem;
}
.article-toc-item--h3 a::before {
    align-self: start;
    width: 6px;
    height: 6px;
    margin-top: .52em;
    border-radius: 50%;
    background: var(--color-secondary);
    content: "";
}
.article-toc-item--h3 a.is-active::before {
    background: var(--color-secondary-text);
}
.article-toc-item a.is-active {
    box-shadow: inset 2px 0 0 var(--color-secondary);
}
.article-mobile-toc {
    display: none;
}
.article-mobile-toc details {
    overflow: hidden;
    border: 1px solid var(--color-line);
    border-radius: var(--radius-md);
    background: var(--color-white);
    box-shadow: var(--shadow-sm);
}
.article-mobile-toc summary {
    position: relative;
    display: flex;
    min-height: 52px;
    padding: 0 48px 0 18px;
    align-items: center;
    color: var(--color-primary);
    font-weight: 780;
    cursor: pointer;
    list-style: none;
}
.article-mobile-toc summary::-webkit-details-marker {
    display: none;
}
.article-mobile-toc summary::before {
    display: block;
    width: 3px;
    height: 19px;
    margin-right: 9px;
    border-radius: 999px;
    background: var(--color-secondary);
    content: "";
}
.article-mobile-toc summary::after {
    position: absolute;
    right: 18px;
    font-size: 1.35rem;
    font-weight: 400;
    content: "+";
}
.article-mobile-toc details[open] summary::after {
    content: "−";
}
.article-mobile-toc .article-toc-list {
    max-height: 380px;
    border-top: 1px solid var(--color-line);
}
@media (max-width: 1240px) {
    .article-layout {
        grid-template-columns: minmax(0, 1fr) 280px;
        gap: 30px;
    }
    .article-sidebar {
        width: 280px;
    }
}
@media (max-width: 920px) {
    .article-layout {
        grid-template-columns: 1fr;
        gap: 28px;
    }
    .article-mobile-toc {
        display: block;
        order: 1;
    }
    .article-main {
        order: 2;
    }
    .article-sidebar {
        position: static;
        width: auto;
        order: 3;
    }
    .article-sidebar .article-toc-card {
        display: none;
    }
}
@media (max-width: 767px) {
    .article-mobile-toc .article-toc-list {
        padding: 10px 12px 13px;
    }
    .article-toc-item a {
        font-size: .84rem;
    }
    .article-toc-item--h3 a {
        font-size: .81rem;
    }
}



/* Mobile TOC interaction fix v2.4.5
 * Let the page own vertical scrolling and collapse the TOC before anchor jumps. */
@media (max-width: 767px) {
    .article-mobile-toc,
    .article-mobile-toc details,
    .article-mobile-toc .article-toc-list {
        touch-action: pan-y;
    }

    .article-mobile-toc .article-toc-list {
        max-height: none;
        overflow: visible;
        overscroll-behavior: auto;
        -webkit-overflow-scrolling: auto;
    }

    .article-mobile-toc .article-toc-item a {
        scroll-margin-top: calc(var(--header-height) + 18px);
    }
}