[hidden] { display: none !important; }
.skip-link { position: fixed; top: -6rem; left: 1rem; z-index: 100; padding: 1rem 1.4rem; background: var(--surface-dark); color: white; border-radius: var(--radius-sm); }
.skip-link:focus { top: 1rem; }
:focus-visible { outline: 3px solid var(--accent-deep); outline-offset: 4px; }
[id] { scroll-margin-top: 2rem; }
.case-headline { max-width: 23ch; font-size: clamp(2.2rem, 4.4vw, 3.9rem); }
.case-index-hero { padding: clamp(1.7rem, 4vw, 3.6rem); }
.case-index-hero p, .case-hero p { margin: 0; }
.case-index-hero .eyebrow, .case-hero .eyebrow { justify-self: start; width: fit-content; background: rgba(72, 198, 232, .12); color: #a8e7f7; font-size: .75rem; }
.case-index-hero .case-headline { max-width: 18ch; }
.case-hero { padding: clamp(1.7rem, 3.5vw, 3rem); }
.case-hero .case-read-time { font-size: .85rem; color: #b8d0de; margin: 0; }
.case-library__heading { display: flex; align-items: end; justify-content: space-between; gap: 1.5rem; }
.case-library__heading .section-title { max-width: 24ch; }
.case-count { white-space: nowrap; font-size: .88rem; font-weight: 700; color: var(--text-muted); }
.case-filters { display: grid; gap: 1.1rem; margin: 1.6rem 0 1.2rem; }
.case-search { display: grid; gap: .5rem; max-width: 35rem; color: var(--text); font-weight: 700; font-size: .88rem; }
.case-search input { width: 100%; min-height: 52px; padding: .85rem 1.05rem; border-radius: 16px; border: 1px solid var(--line-strong); background: var(--surface-strong); color: var(--text); font: inherit; font-weight: 500; }
.case-filter-buttons { display: flex; flex-wrap: wrap; gap: .5rem; }
.case-filter { border: 1px solid var(--line-strong); border-radius: 999px; padding: .75rem 1rem; background: var(--surface); color: var(--text-muted); cursor: pointer; font-size: .88rem; font-weight: 700; min-height: 44px; }
.case-filter:hover { border-color: var(--accent-deep); color: var(--accent-deep); }
.case-filter.is-selected { background: var(--surface-dark); border-color: var(--surface-dark); color: #fff; }
.case-library__note { max-width: 93ch; color: var(--text-muted); font-size: .88rem; line-height: 1.75; margin: 1rem 0 1.8rem; }
.case-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.25rem; }
.case-card { display: flex; flex-direction: column; gap: .85rem; padding: clamp(1.3rem, 2.3vw, 2rem); background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-lg); box-shadow: var(--shadow-soft); }
.case-card .eyebrow { font-size: .72rem; margin: 0; }
.case-card .card-title { font-size: clamp(1.35rem, 2vw, 1.8rem); line-height: 1.25; }
.case-card .card-title a:hover { color: var(--accent-deep); }
.case-card p { margin: 0; }
.case-card__intro { color: var(--text); font-weight: 700; line-height: 1.65; font-size: .98rem; }
.case-card__fit { border-top: 1px solid var(--line); padding-top: .9rem; color: var(--text-muted); font-size: .84rem; line-height: 1.75; }
.case-card__fit strong { display: block; color: var(--text); margin-bottom: .2rem; }
.text-link { color: var(--accent-deep); font-weight: 800; text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 4px; }
.case-card__link { align-self: start; margin-top: auto; padding: .4rem 0; font-size: .88rem; }
.case-empty { display: grid; gap: 1rem; }
.case-empty button { justify-self: start; }
.breadcrumbs { display: flex; flex-wrap: wrap; gap: .55rem; align-items: baseline; padding: 1.5rem 0 0; color: var(--text-muted); font-size: .8rem; line-height: 1.6; }
.breadcrumbs a { text-decoration: underline; text-underline-offset: 3px; }
.breadcrumbs [aria-current] { color: var(--text); }
.case-overview { display: grid; gap: 1.7rem; }
.case-overview .section-title { margin-bottom: .8rem; }
.case-overview > div > .body-copy { max-width: 95ch; }
.case-benefits { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; }
.case-benefits .card-title, .case-fit .card-title { font-size: 1.3rem; margin-bottom: .6rem; }
.case-evidence { border-top: 1px solid var(--line); padding-top: 1.2rem; margin: 0; font-size: .88rem; line-height: 1.75; color: var(--text-muted); }
.case-evidence strong { color: var(--text); }
.case-reading-layout { display: grid; grid-template-columns: 225px minmax(0, 1fr); align-items: start; gap: 2rem; }
.case-toc { position: sticky; top: 1.5rem; display: grid; gap: 1rem; font-size: .84rem; line-height: 1.6; }
.case-toc details { border: 1px solid var(--line); border-radius: 18px; padding: 1rem; background: var(--surface); }
.case-toc summary { font-weight: 800; cursor: pointer; }
.case-toc nav { display: grid; gap: .75rem; margin-top: 1rem; }
.case-toc nav a { color: var(--text-muted); }
.case-toc nav a:hover { color: var(--accent-deep); text-decoration: underline; }
.case-source-wrap { min-width: 0; }
.case-source-note { font-size: .8rem; color: var(--text-muted); padding: 0 0 1.25rem; border-bottom: 1px solid var(--line); margin: 0 0 1.5rem; }
.case-source { overflow-wrap: anywhere; }
.case-source .source-title { font-family: "Fraunces", serif; font-size: clamp(1.9rem, 3vw, 2.7rem); font-weight: 600; letter-spacing: -.035em; line-height: 1.15; margin: 1rem 0; }
.case-source h2 { font-family: "Fraunces", serif; font-size: clamp(1.65rem, 2.4vw, 2.1rem); line-height: 1.2; letter-spacing: -.03em; margin: 2.5rem 0 1.1rem; }
.case-source h3 { font-family: "Fraunces", serif; font-size: 1.35rem; margin: 1.8rem 0 .8rem; }
.case-source p, .case-source li { font-size: .98rem; color: var(--text-muted); line-height: 1.85; margin: 0 0 1rem; }
.case-source strong { font-weight: 800; color: var(--text); }
.case-source .source-caption { font-size: .85rem; color: var(--text-muted); line-height: 1.75; }
.case-source .source-subtitle { font-size: 1.05rem; }
.case-source .source-furniture { font-size: .7rem; letter-spacing: .07em; color: var(--text-muted); }
.source-list { padding-left: 1.3rem; margin: 0 0 1.5rem; }
.source-list li { margin-bottom: .45rem; }
.case-figure { margin: 1.8rem 0 1.3rem; padding: .5rem; background: var(--bg-soft); border: 1px solid var(--line); border-radius: 18px; }
.case-figure__open { display: block; border-radius: 12px; overflow: hidden; }
.case-figure img { width: 100%; height: auto; }
.case-figure__tools { display: flex; justify-content: space-between; gap: .5rem; padding: .8rem .5rem .3rem; color: var(--text-muted); font-size: .75rem; line-height: 1.65; }
.source-panels { border: 1px solid var(--line); border-radius: 16px; overflow: hidden; margin: 1.5rem 0; background: var(--surface); }
.source-panels__row { display: grid; grid-auto-flow: column; grid-auto-columns: minmax(0, 1fr); }
.source-panels__row + .source-panels__row { border-top: 1px solid var(--line); }
.source-panels__cell { padding: 1.1rem; min-width: 0; }
.source-panels__cell + .source-panels__cell { border-left: 1px solid var(--line); }
.case-source .source-panels p { font-size: .9rem; line-height: 1.75; }
.source-panels__cell p:last-child { margin-bottom: 0; }
.source-table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 16px; margin: 1.5rem 0; }
.source-table { width: 100%; border-collapse: collapse; background: var(--surface); }
.source-table th, .source-table td { text-align: left; vertical-align: top; padding: 1rem; border-bottom: 1px solid var(--line); border-right: 1px solid var(--line); min-width: 140px; }
.source-table th { background: var(--surface-dark); color: #fff; }
.case-source .source-table th p, .case-source .source-table th strong { color: #fff; }
.case-source .source-table p { font-size: .88rem; line-height: 1.75; margin-bottom: .6rem; }
.source-table p:last-child { margin-bottom: 0; }
.source-table tr:nth-child(even) { background: var(--accent-soft); }
.source-table td:last-child, .source-table th:last-child { border-right: 0; }
.source-table tbody tr:last-child td { border-bottom: 0; }
.case-reading-end { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 1rem; margin-top: 2rem; padding-top: 1.5rem; border-top: 1px solid var(--line); font-size: .85rem; }
@media (max-width: 1000px) {
  .case-reading-layout { grid-template-columns: 1fr; }
  .case-toc { position: static; display: flex; flex-wrap: wrap; align-items: center; }
  .case-toc details { width: 100%; }
  .case-toc nav { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 700px) {
  .case-grid, .case-benefits { grid-template-columns: 1fr; }
  .case-library__heading { display: block; }
  .case-count { margin: .75rem 0 0; }
  .case-headline { font-size: clamp(2rem, 8.5vw, 3rem); max-width: none; }
  .case-toc nav { grid-template-columns: 1fr; }
  .source-panels__row { grid-auto-flow: row; }
  .source-panels__cell + .source-panels__cell { border-left: 0; border-top: 1px solid var(--line); }
  .case-figure { margin-inline: 0; padding: .3rem; }
  .case-figure__tools { font-size: .72rem; }
  .case-card { border-radius: 24px; }
  .case-search input { font-size: 16px; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
@media print {
  .site-header, .site-footer, .skip-link, .breadcrumbs, .hero-simple, .case-overview, .case-toc, .case-source-note, .case-reading-end, #related-cases, .cta-panel, .case-figure__tools { display: none !important; }
  body { background: #fff; }
  .container { width: 100%; }
  .section { padding: 0; }
  .case-reading-layout { display: block; }
  .page-shell { overflow: visible; }
  .page-shell::before, .page-shell::after { display: none; }
  .case-source p, .case-source li { font-size: 10pt; color: #102536; }
  .case-figure, .source-panels__row, .source-table tr { break-inside: avoid; }
  .case-source h2, .case-source h3 { break-after: avoid; }
  .source-table-wrap { overflow: visible; }
}

.diagram-text { margin: 1rem 0 1.5rem; }
.diagram-text summary { color: var(--accent-deep); font-size: .85rem; font-weight: 700; cursor: pointer; }