.library-layout { display: grid; grid-template-columns: 248px minmax(0, 1fr); max-width: 1680px; margin: 0 auto; padding-top: 80px; }
.library-sidebar { border-right: 1px solid var(--line); background: #fafbf9; }
.library-sidebar-panel { position: sticky; top: 80px; max-height: calc(100vh - 80px); overflow-y: auto; overscroll-behavior: contain; padding: 2rem 1rem; }
.library-desktop-label { margin: 0 .75rem 1.15rem; }
.library-menu-toggle { display: none; }
.library-links.collapse { display: block; }
.library-links ul { list-style: none; padding: 0; margin: .75rem 0 0; }
.library-links li { margin-bottom: .35rem; }
.library-links a { display: block; border-radius: 5px; padding: .75rem; font-size: .875rem; line-height: 1.5; color: var(--ink-soft); border-left: 3px solid transparent; }
.library-links a:hover { background: #edf1ef; color: var(--ink); }
.library-links a[aria-current="page"] { background: #f3ecd7; color: var(--ink); border-left-color: #92701f; font-weight: 800; }
.library-links .library-overview { font-weight: 700; border-bottom: 1px solid var(--line); border-radius: 0; }
.library-content { min-width: 0; }
.library-content .editorial-hero, .library-content .service-hero { padding-block: 56px; }
.library-content .editorial-hero h1, .library-content .service-hero h1 { font-size: clamp(2.25rem, 3.8vw, 3.6rem); }
.library-content .section { padding-block: 64px; }
.library-content .section-heading { gap: 2rem; }
.library-content .reading-layout { grid-template-columns: minmax(0, 1fr); gap: 2rem; max-width: 820px; }
.library-content .reading-aside { position: static; }
.library-content .reading-aside ul { margin-bottom: 1rem; }
.library-content .case-watch-layout { grid-template-columns: minmax(0, 1fr); }
.library-content .case-watch-aside { border-left: 0; border-top: 1px solid var(--line); padding: 1.5rem 0 0; }
.library-content .case-video { min-height: 200px; }
.library-content .series-recording { flex-direction: column; align-items: flex-start; }
.reference-diagram { margin: 2rem 0 2.5rem; border: 1px solid var(--line); border-radius: 8px; background: #fff; overflow: hidden; }
.reference-diagram figcaption { padding: 1.35rem 1.5rem 1rem; border-bottom: 1px solid var(--line); }
.reference-diagram figcaption .eyebrow { display: block; margin-bottom: .5rem; }
.reference-diagram figcaption strong { display: block; color: var(--ink); font-size: 1.2rem; line-height: 1.5; }
.reference-diagram figcaption p { margin: .6rem 0 0; font-size: .9rem; line-height: 1.7; }
.reference-diagram-canvas { overflow-x: auto; overscroll-behavior-x: contain; }
.reference-diagram-canvas:focus-visible { outline: 3px solid #92701f; outline-offset: -3px; }
.reference-diagram-canvas img { display: block; width: 100%; min-width: 680px; height: auto; }
.reference-diagram-actions { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: .5rem 1rem; padding: .9rem 1.5rem; border-top: 1px solid var(--line); font-size: .8rem; line-height: 1.6; }
.reference-diagram-actions a { font-weight: 700; color: var(--ink); }
.reference-diagram-description { padding: .9rem 1.5rem; border-top: 1px solid var(--line); font-size: .9rem; }
.reference-diagram-description summary { cursor: pointer; font-weight: 700; color: var(--ink); }
.reference-diagram-description ol { margin: 1rem 0 0; padding-left: 1.2rem; }
.reference-diagram-description li:last-child { padding-bottom: 0; }
@media (min-width: 992px) and (max-width: 1399.98px) {
  .library-content .architecture-feature, .library-content .project-detail-grid, .library-content .service-content-grid { grid-template-columns: minmax(0, 1fr); gap: 2rem; }
  .library-content .related-work { border-left: 0; border-top: 1px solid var(--line); padding: 1.8rem 0 0; }
  .library-content .section-heading { grid-template-columns: minmax(0, 1fr); gap: 1rem; }
  .library-content .section-heading > p { max-width: 100%; justify-self: start; }
  .library-content .decision-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.5rem; }
  .library-content .series-card { padding: 1.5rem; }
  .library-content .series-card h3 { font-size: 1.5rem; }
  .library-content .series-next { flex-direction: column; align-items: flex-start; gap: 1.5rem; }
}
@media (max-width: 991.98px) {
  .library-layout { grid-template-columns: minmax(0, 1fr); }
  .library-sidebar { border-right: 0; border-bottom: 1px solid var(--line); }
  .library-sidebar-panel { position: static; max-height: none; overflow: visible; padding: .75rem 20px; }
  .library-desktop-label { display: none; }
  .library-menu-toggle { display: flex; justify-content: space-between; align-items: center; width: 100%; border: 0; background: none; padding: .6rem 0; text-align: left; color: var(--ink); font-weight: 700; }
  .library-links.collapse:not(.show) { display: none; }
  .library-links { max-height: 60vh; overflow-y: auto; padding-bottom: .5rem; }
  .library-content .editorial-hero, .library-content .service-hero { padding-block: 40px; }
}
@media (max-width: 767.98px) {
  .library-layout { padding-top: 72px; }
  .library-content .editorial-hero h1, .library-content .service-hero h1 { font-size: clamp(2rem, 8vw, 3rem); }
  .library-content .section { padding-block: 48px; }
}