.case-detail { width: min(100%, 1720px); margin: 0 auto; padding: calc(var(--header-h) + 30px) var(--page) 100px; }
.case-breadcrumb { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin: 0 0 clamp(58px, 8vw, 116px); color: var(--muted); font-size: .76rem; }
.case-breadcrumb a, .case-back-link a { border-bottom: 1px solid var(--line); }
.case-detail-heading { max-width: 1080px; margin: 0 0 clamp(64px, 9vw, 128px); }
.case-detail-heading > .eyebrow { display: flex; gap: 8px; align-items: center; margin-bottom: 22px; color: var(--accent); font-size: .72rem; letter-spacing: .13em; }
.case-title { max-width: 14ch; margin: 0; font-size: clamp(2.8rem, 7.5vw, 7.8rem); line-height: 1.13; }
.case-title-en { margin: 18px 0 24px; color: var(--muted); font-family: var(--display); font-size: clamp(1rem, 1.6vw, 1.35rem); }
.case-meta { display: flex; flex-wrap: wrap; gap: 10px 24px; padding: 15px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); color: var(--muted); font-size: .78rem; }
.case-project-facts { grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); max-width: 840px; margin: 26px 0 0; }
.case-project-facts dt { letter-spacing: .05em; }
.case-project-facts dd { line-height: 1.55; }
.case-source-note { display: grid; grid-template-columns: minmax(120px, 1fr) minmax(0, 4fr); gap: 18px; max-width: 840px; margin: 28px 0 10px; font-size: .92rem; }
.case-source-note .eyebrow { color: var(--accent); font-size: .68rem; letter-spacing: .12em; }
.case-scope-note { max-width: 840px; margin: 0; color: var(--muted); font-size: .78rem; }
.case-share { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin-top: 26px; }
.case-share a, .case-share button { min-height: 44px; padding: 9px 15px; border: 1px solid var(--line); background: transparent; color: inherit; font: inherit; font-size: .78rem; cursor: pointer; }
.case-share a { display: inline-flex; align-items: center; }
.case-reading { max-width: 1320px; margin: 0 0 clamp(82px, 11vw, 152px); padding: clamp(26px, 4.4vw, 62px); background: var(--paper-deep); }
.case-reading > .eyebrow, .case-gallery-heading > .eyebrow { margin-bottom: 18px; color: var(--accent); font-size: .7rem; letter-spacing: .14em; }
.case-reading h2 { max-width: 19ch; margin-bottom: 14px; font-size: clamp(1.75rem, 3.1vw, 3.4rem); line-height: 1.3; }
.case-reading-disclosure { color: var(--muted); font-size: .8rem; }
.case-reading-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; margin-top: 35px; }
.case-reading-grid article { padding-top: 18px; border-top: 1px solid var(--line); }
.case-reading-grid .eyebrow { color: var(--accent); font-size: .68rem; }
.case-reading-grid article > p:last-child { margin: 0; font-size: .9rem; line-height: 1.9; }
.case-gallery-section { margin-top: 0; }
.case-gallery-heading { display: flex; justify-content: space-between; align-items: end; gap: 24px; margin-bottom: 28px; }
.case-gallery-heading h2 { display: flex; align-items: baseline; gap: 18px; margin: 0; font-size: clamp(2rem, 4.4vw, 4.6rem); line-height: 1.16; }
.case-gallery-count { color: var(--accent); font-family: var(--display); font-size: .44em; }
.case-gallery { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: clamp(20px, 3vw, 44px) 18px; }
.case-gallery-item { min-width: 0; margin: 0; }
.case-gallery-item > a { display: block; overflow: hidden; background: var(--paper-deep); }
.case-gallery-item img { width: 100%; height: auto; aspect-ratio: 4 / 3; object-fit: contain; transition: transform 400ms var(--ease-out); }
.case-gallery-item > a:hover img { transform: scale(1.015); }
.case-gallery-item figcaption { padding-top: 10px; color: var(--muted); font-size: .68rem; letter-spacing: .08em; }
.case-neighbor-nav { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-top: clamp(76px, 10vw, 136px); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.case-neighbor-nav > * { display: flex; min-height: 112px; flex-direction: column; justify-content: center; gap: 10px; padding: 20px 0; }
.case-neighbor-nav > :last-child { align-items: flex-end; text-align: right; border-left: 1px solid var(--line); }
.case-neighbor-nav .eyebrow { margin: 0; color: var(--muted); font-size: .65rem; letter-spacing: .12em; }
.case-neighbor-nav strong { font-size: 1rem; font-weight: 500; }
.case-neighbor-empty { color: var(--muted); font-size: .8rem; }
.case-back-link { margin: 32px 0 0; font-size: .82rem; }
.case-detail + .site-footer { margin-top: 0; }
@media (max-width: 700px) {
  .case-detail { padding-top: calc(var(--header-h) + 22px); padding-bottom: 68px; }
  .case-breadcrumb { gap: 8px; margin-bottom: 54px; }
  .case-detail-heading { margin-bottom: 70px; }
  .case-title { font-size: clamp(2.45rem, 12vw, 4.2rem); }
  .case-project-facts { grid-template-columns: 1fr; margin-top: 22px; }
  .case-source-note { grid-template-columns: 1fr; gap: 2px; }
  .case-reading { margin-right: calc(var(--page) * -1); margin-left: calc(var(--page) * -1); padding: 34px var(--page); }
  .case-reading-grid { grid-template-columns: 1fr; gap: 18px; margin-top: 24px; }
  .case-gallery { grid-template-columns: 1fr; gap: 26px; }
  .case-gallery-heading { align-items: start; flex-direction: column; gap: 2px; }
  .case-neighbor-nav { gap: 12px; }
  .case-neighbor-nav > * { min-height: 102px; }
  .case-neighbor-nav strong { font-size: .87rem; }
}
@media (prefers-reduced-motion: reduce) {
  .case-gallery-item img { transition: none; }
}