.case-page {
  --rail-width: clamp(270px, 25vw, 380px);
  --case-gap: clamp(28px, 4vw, 72px);
}

.case-study {
  width: min(100%, 1800px);
  margin: 0 auto;
  padding: calc(var(--header-h) + clamp(28px, 3vw, 48px)) var(--gutter)
    clamp(120px, 14vw, 220px);
  display: grid;
  grid-template-columns: var(--rail-width) minmax(0, 1fr);
  column-gap: var(--case-gap);
  align-items: start;
}

/* Project information becomes one quiet, fixed rail. */
.case-intro {
  position: sticky;
  top: calc(var(--header-h) + 28px);
  grid-column: 1;
  grid-row: 1 / span 30;
  min-height: calc(100svh - var(--header-h) - 56px);
  padding: 0 var(--case-gap) 24px 0;
  border-right: 1px solid var(--line);
  display: flex;
  flex-direction: column;
}

.case-intro__top {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  color: var(--muted);
  font-size: 9px;
  line-height: 1.5;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.case-intro__top p {
  margin: 0;
}

.case-intro__title {
  margin: clamp(38px, 5vh, 62px) 0 26px;
  font-size: clamp(34px, 3vw, 48px);
  font-weight: 500;
  line-height: 0.98;
  letter-spacing: -0.065em;
  overflow-wrap: anywhere;
}

.case-intro__bottom {
  display: flex;
  flex: 1;
  flex-direction: column;
}

.case-intro__lead {
  max-width: 310px;
  margin: 0;
  font-family: "Noto Sans JP", "Inter", sans-serif;
  font-size: 13px;
  line-height: 1.85;
  letter-spacing: -0.025em;
}

.case-meta {
  width: 100%;
  margin: auto 0 0;
}

.case-meta div {
  display: grid;
  grid-template-columns: 70px minmax(0, 1fr);
  gap: 14px;
  padding: 10px 0;
  border-top: 1px solid var(--line);
  font-size: 9px;
  line-height: 1.55;
}

.case-meta div:last-child {
  border-bottom: 1px solid var(--line);
}

.case-meta dt,
.case-meta dd {
  margin: 0;
}

.case-meta dt {
  color: var(--muted);
}

.case-meta a {
  padding-bottom: 1px;
  border-bottom: 1px solid currentColor;
}

.case-study > :not(.case-intro) {
  grid-column: 2;
}

.case-media,
.case-feature,
.case-asset-grid figure,
.case-mobile-grid figure {
  background: #e7e6e1;
}

.case-media,
.case-asset-grid figure,
.case-mobile-grid figure {
  margin: 0;
  overflow: hidden;
  display: grid;
  place-items: center;
}

.case-media img,
.case-feature img,
.case-asset-grid img {
  width: auto;
  max-width: 100%;
  max-height: 78svh;
  object-fit: contain;
}

.case-media--main {
  width: 100%;
  min-height: min(74svh, 840px);
  padding: clamp(20px, 3vw, 52px);
}

.case-overview {
  width: min(100%, 760px);
  margin: 0 auto;
  padding: clamp(100px, 12vw, 180px) 0;
}

.case-label {
  margin: 0 0 32px;
  color: var(--muted);
  font-size: 9px;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.case-overview__copy {
  max-width: 720px;
}

.case-overview h2 {
  max-width: 680px;
  margin: 0 0 32px;
  font-family: "Noto Sans JP", "Inter", sans-serif;
  font-size: clamp(23px, 2.3vw, 34px);
  font-weight: 500;
  line-height: 1.42;
  letter-spacing: -0.05em;
}

.case-overview__copy > p {
  max-width: 600px;
  margin: 0 0 1.45em;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.9;
}

.case-images,
.case-gallery,
.case-feature,
.case-asset-grid {
  width: 100%;
}

.case-images > .case-media {
  margin-bottom: clamp(18px, 2vw, 26px);
}

.case-images__pair,
.case-graphic-grid,
.case-asset-grid {
  display: grid;
  gap: clamp(18px, 2vw, 26px);
  align-items: start;
}

.case-images__pair,
.case-graphic-grid,
.case-asset-grid--two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.case-asset-grid--three {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.case-asset-grid--three figure:last-child {
  width: 72%;
  grid-column: 1 / -1;
  justify-self: center;
}

.case-gallery {
  padding-top: clamp(130px, 15vw, 230px);
}

.case-section-title {
  padding-bottom: 12px;
  margin-bottom: clamp(54px, 7vw, 100px);
  border-bottom: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  gap: 20px;
  color: var(--muted);
  font-size: 9px;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.case-section-title p {
  margin: 0;
}

.case-mobile-grid {
  width: min(82%, 880px);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(16px, 3vw, 46px);
}

.case-gallery--graphic {
  padding-bottom: 0;
}

.case-feature {
  min-height: min(74svh, 840px);
  padding: clamp(28px, 4vw, 64px);
  display: grid;
  place-items: center;
}

.case-feature figure {
  margin: 0 auto;
  display: grid;
  place-items: center;
}

.case-feature--logo figure {
  max-width: 900px;
}

.case-feature--portrait figure {
  max-width: 620px;
}

.case-feature--pattern figure {
  max-width: 1000px;
}

.case-feature img {
  max-height: 70svh;
}

.case-asset-grid {
  padding-top: 18px;
}

.case-asset-grid img {
  max-height: 76svh;
}

.case-back {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.case-back a {
  min-height: clamp(120px, 11vw, 168px);
  padding: clamp(28px, 4vw, 56px) var(--gutter);
  padding-left: calc(var(--gutter) + var(--rail-width) + var(--case-gap));
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  font-size: clamp(26px, 3vw, 44px);
  font-weight: 500;
  letter-spacing: -0.055em;
  transition: background 0.4s, color 0.4s;
}

.case-back a:hover {
  background: #111;
  color: #fff;
}

.case-back a span:last-child {
  font-size: 16px;
  letter-spacing: 0;
}

@media (max-width: 980px) {
  .case-study {
    grid-template-columns: minmax(230px, 30vw) minmax(0, 1fr);
  }

  .case-intro__top {
    flex-direction: column;
    gap: 4px;
  }

  .case-meta div {
    grid-template-columns: 58px minmax(0, 1fr);
  }
}

@media (max-width: 720px) {
  .case-study {
    width: 100%;
    padding: var(--header-h) 0 108px;
    display: block;
  }

  .case-intro {
    position: relative;
    top: auto;
    min-height: auto;
    padding: 42px var(--gutter) 68px;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .case-intro__top {
    flex-direction: row;
  }

  .case-intro__title {
    margin: 44px 0 30px;
    font-size: clamp(36px, 10vw, 48px);
  }

  .case-intro__lead {
    max-width: 520px;
    font-size: 15px;
  }

  .case-meta {
    margin-top: 48px;
  }

  .case-meta div {
    grid-template-columns: 72px minmax(0, 1fr);
    font-size: 10px;
  }

  .case-media--main {
    min-height: auto;
    padding: 18px;
  }

  .case-overview {
    width: calc(100% - (var(--gutter) * 2));
    padding: 88px 0 96px;
  }

  .case-overview h2 {
    font-size: clamp(22px, 6.4vw, 30px);
  }

  .case-images__pair,
  .case-graphic-grid,
  .case-asset-grid--two,
  .case-asset-grid--three {
    grid-template-columns: 1fr;
  }

  .case-asset-grid--three figure:last-child {
    width: 100%;
    grid-column: auto;
  }

  .case-gallery {
    padding-top: 108px;
  }

  .case-section-title {
    margin-right: var(--gutter);
    margin-bottom: 58px;
    margin-left: var(--gutter);
  }

  .case-mobile-grid {
    width: 72%;
    margin: 0 auto;
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .case-feature {
    min-height: auto;
    padding: 18px;
  }

  .case-back a {
    min-height: 130px;
    padding: var(--gutter);
    font-size: clamp(26px, 8vw, 36px);
  }
}

/* Dynamic WordPress work content */
.case-content {
  min-width: 0;
}

.case-content > * {
  margin-top: 0;
}

.case-content .wp-block-image {
  margin-right: 0;
  margin-left: 0;
}

.case-content .wp-block-image img,
.case-content .wp-block-gallery img {
  display: block;
  width: 100%;
  height: auto;
}

.case-content > .case-feature,
.case-content > .case-media,
.case-content > .case-asset-grid,
.case-content > .case-mobile-grid,
.case-content > .case-section-title {
  margin-bottom: clamp(18px, 2vw, 26px);
}

.case-content > .case-overview {
  margin-right: auto;
  margin-left: auto;
}

.case-content .wp-block-image.case-feature {
  width: 100%;
  margin-bottom: 0;
}

.case-content .wp-block-image.case-feature--logo img {
  max-width: 900px;
  margin: 0 auto;
}

.case-content .wp-block-image.case-feature--portrait img {
  max-width: 620px;
  margin: 0 auto;
}

.case-content .wp-block-image.case-feature--pattern img {
  max-width: 1000px;
  margin: 0 auto;
}

.case-content .wp-block-gallery.case-asset-grid,
.case-content .wp-block-gallery.case-mobile-grid {
  display: grid;
  align-items: start;
  gap: clamp(18px, 2vw, 26px);
}

.case-content .wp-block-gallery.case-asset-grid--two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.case-content .wp-block-gallery.case-asset-grid--three,
.case-content .wp-block-gallery.case-mobile-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.case-content .wp-block-gallery.case-asset-grid figure,
.case-content .wp-block-gallery.case-mobile-grid figure {
  width: 100% !important;
  margin: 0 !important;
}

.case-content .case-section-title {
  margin-top: clamp(130px, 15vw, 230px);
}

.case-content > h2,
.case-content > h3,
.case-content > p,
.case-content > ul,
.case-content > ol,
.case-content > blockquote {
  width: min(100%, 760px);
  margin-right: auto;
  margin-left: auto;
}

.case-content > h2,
.case-content > h3 {
  margin-top: clamp(72px, 9vw, 130px);
  margin-bottom: 26px;
  font-family: "Noto Sans JP", "Inter", sans-serif;
  font-weight: 500;
  letter-spacing: -0.04em;
}

.case-content > p,
.case-content > ul,
.case-content > ol,
.case-content > blockquote {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.9;
}

@media (max-width: 720px) {
  .case-content .wp-block-gallery.case-asset-grid--two,
  .case-content .wp-block-gallery.case-asset-grid--three,
  .case-content .wp-block-gallery.case-mobile-grid {
    grid-template-columns: 1fr;
  }

  .case-content .wp-block-gallery.case-mobile-grid {
    width: 72%;
  }

  .case-content .case-section-title {
    margin-top: 108px;
  }

  .case-content > h2,
  .case-content > h3,
  .case-content > p,
  .case-content > ul,
  .case-content > ol,
  .case-content > blockquote {
    width: calc(100% - (var(--gutter) * 2));
  }
}