.case-hero {
  padding-block: clamp(40px, 6vw, 72px) clamp(56px, 7vw, 88px);
  color: var(--white);
  background: var(--navy);
}

.case-hero .eyebrow,
.page-hero .eyebrow,
.is-dark .eyebrow,
.is-dark .project-eyebrow {
  color: #efaa87;
}

.case-hero .button-primary {
  color: var(--navy);
  background: #efaa87;
}

.case-hero .button-primary:hover {
  background: #f4c0a7;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin-bottom: 48px;
  color: rgba(255, 255, 255, 0.54);
  font: 500 12px/1.4 var(--mono);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.breadcrumb a {
  color: rgba(255, 255, 255, 0.76);
  text-decoration-color: var(--orange);
  text-underline-offset: 4px;
}

.case-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(360px, 0.92fr);
  align-items: center;
  gap: clamp(48px, 8vw, 110px);
}

.case-hero h1 {
  max-width: 780px;
  margin: 0;
  font-size: clamp(36px, 4.7vw, 60px);
  font-weight: 600;
  line-height: 1.02;
  letter-spacing: -0.055em;
}

.case-lede {
  max-width: 720px;
  margin: 28px 0 0;
  color: rgba(255, 255, 255, 0.7);
  font-size: clamp(16px, 1.5vw, 18px);
}

.case-cover {
  margin: 0;
  background: #dfe3e3;
  border-radius: 8px;
  overflow: hidden;
}

.case-cover img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.case-cover.is-contain img {
  object-fit: contain;
  padding: 22px;
}

.case-cover figcaption,
.case-figure figcaption {
  padding: 12px 15px;
  color: rgba(255, 255, 255, 0.72);
  background: var(--navy-light);
  font: 500 12px/1.5 var(--mono);
}

.case-summary {
  color: var(--white);
  background: var(--steel-dark);
}

.case-summary-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin-block: 0;
}

.case-summary-grid > div {
  min-height: 124px;
  display: grid;
  align-content: center;
  padding: 24px;
  border-left: 1px solid rgba(255, 255, 255, 0.14);
}

.case-summary-grid > div:last-child {
  border-right: 1px solid rgba(255, 255, 255, 0.14);
}

.case-summary dt {
  color: rgba(255, 255, 255, 0.48);
  font: 500 12px/1.4 var(--mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.case-summary dd {
  margin: 8px 0 0;
  font-size: 13px;
  font-weight: 600;
  line-height: 1.4;
}

.case-section {
  padding-block: clamp(56px, 7vw, 88px);
}

.case-section.is-white {
  background: var(--white);
}

.case-section.is-dark {
  color: var(--white);
  background: var(--navy);
}

.case-section-heading {
  max-width: 820px;
  margin-bottom: 48px;
}

.case-section-heading h2 {
  margin: 0;
  font-size: clamp(30px, 3.5vw, 44px);
  font-weight: 600;
  line-height: 1.08;
  letter-spacing: -0.045em;
}

.case-section-heading > p:not(.eyebrow) {
  max-width: 720px;
  margin: 22px 0 0;
  color: var(--ink-soft);
  font-size: 17px;
}

.is-dark .case-section-heading > p:not(.eyebrow) {
  color: rgba(255, 255, 255, 0.66);
}

.case-two-column {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
  gap: clamp(48px, 9vw, 124px);
}

.case-two-column.is-spaced {
  margin-top: 48px;
}

.case-prose h3,
.module-card h3 {
  margin: 0;
  font-size: clamp(24px, 3vw, 34px);
  font-weight: 600;
  line-height: 1.18;
  letter-spacing: -0.035em;
}

.case-prose p,
.case-prose li,
.module-card p {
  color: var(--ink-soft);
}

.is-dark .case-prose p,
.is-dark .case-prose li,
.is-dark .module-card p {
  color: rgba(255, 255, 255, 0.65);
}

.case-prose p {
  margin: 18px 0 0;
}

.case-prose ul,
.case-prose ol {
  margin: 22px 0 0;
  padding-left: 20px;
}

.case-prose li + li {
  margin-top: 10px;
}

.evidence-callout {
  margin-top: 30px;
  padding: 22px 24px;
  border-left: 3px solid var(--orange);
  background: rgba(212, 99, 55, 0.07);
}

.evidence-callout strong,
.evidence-callout span {
  display: block;
}

.evidence-callout strong {
  font-size: 19px;
}

.evidence-callout span {
  margin-top: 8px;
  color: var(--ink-soft);
  font-size: 13px;
}

.is-dark .evidence-callout {
  background: rgba(212, 99, 55, 0.1);
}

.is-dark .evidence-callout span {
  color: rgba(255, 255, 255, 0.62);
}

.case-figure {
  margin: 0;
  overflow: hidden;
  background: #dfe3e3;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.case-figure img {
  width: 100%;
  height: auto;
}

.case-figure.is-padded img {
  padding: 18px;
}

.case-media-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
  margin-top: 48px;
}

.case-media-grid .case-figure:first-child:last-child {
  grid-column: 1 / -1;
}

.result-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-top: 34px;
}

.result-card {
  padding: 24px;
  background: var(--white);
  border: 1px solid var(--line);
}

.result-card strong,
.result-card span,
.result-card small {
  display: block;
}

.result-card span {
  color: var(--orange-dark);
  font: 600 12px/1.3 var(--mono);
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.result-card strong {
  margin-top: 10px;
  font-size: clamp(28px, 4vw, 42px);
  line-height: 1;
}

.result-card small {
  margin-top: 12px;
  color: var(--ink-soft);
  line-height: 1.5;
}

.tolerance-case-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-top: 36px;
}

.tolerance-case {
  overflow: hidden;
  background: var(--white);
  border: 1px solid var(--line);
}

.tolerance-case-wide {
  grid-column: 1 / -1;
}

.tolerance-case-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
  padding: 22px 24px;
  border-bottom: 1px solid var(--line);
}

.tolerance-case-heading span,
.controller-detail-grid span,
.control-node span {
  color: var(--orange-dark);
  font: 600 12px/1.3 var(--mono);
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.tolerance-case-heading h3 {
  margin: 7px 0 0;
  font-size: 20px;
  line-height: 1.2;
}

.tolerance-case-heading > strong {
  flex: none;
  font-size: clamp(28px, 4vw, 44px);
  line-height: 0.95;
}

.tolerance-case-heading > strong small {
  display: block;
  margin-top: 7px;
  color: var(--ink-soft);
  font: 600 12px/1.2 var(--mono);
  letter-spacing: 0.08em;
  text-align: right;
}

.tolerance-case > img,
.tolerance-case > .image-zoom-button img,
.tolerance-image-pair img {
  display: block;
  width: 100%;
  height: 430px;
  object-fit: contain;
  padding: 18px;
  background: #e3e6e5;
}

.tolerance-image-pair {
  display: grid;
  grid-template-columns: 1.45fr 0.85fr;
}

.tolerance-image-pair img + img {
  border-left: 1px solid var(--line);
}
.tolerance-image-pair .image-zoom-button + .image-zoom-button { border-left: 1px solid var(--line); }

.image-zoom-button { display: block; position: relative; width: 100%; padding: 0; border: 0; background: transparent; color: var(--ink); cursor: zoom-in; }
.image-zoom-button:focus-visible { outline: 3px solid var(--orange-dark); outline-offset: 3px; z-index: 1; }
.image-zoom-hint { position: absolute; right: 10px; bottom: 10px; padding: 7px 10px; color: #fff; background: #102730ed; border: 1px solid #ffffff60; border-radius: 3px; font: 500 12px/1.4 var(--sans); }
.viewer-open { overflow: hidden; }
.image-viewer { width: min(1200px, calc(100% - 24px)); max-width: none; max-height: calc(100dvh - 24px); padding: 0; border: 1px solid #7b9299; background: #f8f7f3; color: #172a32; }
.image-viewer::backdrop { background: #07161ee0; }
.image-viewer-toolbar { display: flex; justify-content: space-between; align-items: center; padding: 12px 16px; border-bottom: 1px solid var(--line); font-size: 13px; }
.image-viewer-toolbar button { min-height: 44px; padding: 8px 14px; border: 1px solid #71868c; background: #fff; color: #172a32; font: 600 14px var(--sans); cursor: pointer; }
.image-viewer > img { display: block; width: 100%; height: auto; max-height: calc(100dvh - 210px); object-fit: contain; background: #fff; }
.image-viewer-caption { padding: 12px 16px 18px; font-size: 13px; }
.image-viewer-caption p { margin: 0 0 8px; }
.image-viewer-caption a { color: #245766; }

.controller-flow {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 24px minmax(0, 1fr) 24px minmax(0, 1fr) 24px minmax(0, 1fr) 24px minmax(0, 1fr);
  align-items: stretch;
  margin-top: 38px;
}

.control-node {
  display: grid;
  align-content: center;
  min-height: 174px;
  min-width: 0;
  padding: 18px;
  overflow-wrap: anywhere;
  background: var(--white);
  border: 1px solid var(--line);
}

.control-node-terminal {
  border-radius: 999px;
  text-align: center;
}

.control-node-active {
  color: var(--white);
  background: var(--navy);
  border-color: var(--navy);
}

.control-node-active span {
  color: var(--orange);
}

.control-node strong {
  margin-top: 9px;
  font-size: 21px;
  line-height: 1.15;
}

.control-node small {
  margin-top: 10px;
  color: var(--ink-soft);
  font-size: 11px;
  line-height: 1.45;
}

.control-node-active small {
  color: rgba(255, 255, 255, 0.66);
}

.control-arrow {
  display: grid;
  place-items: center;
  color: var(--orange-dark);
  font: 600 22px/1 var(--mono);
}

.controller-detail-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 28px;
}

.controller-detail-grid article {
  padding: 24px;
  background: var(--white);
  border: 1px solid var(--line);
}

.controller-detail-grid code {
  display: block;
  margin-top: 12px;
  color: var(--ink);
  font: 600 15px/1.5 var(--mono);
}

.controller-detail-grid p {
  margin: 12px 0 0;
  color: var(--ink-soft);
  font-size: 13px;
}

.video-evidence-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(320px, 0.65fr);
  align-items: start;
  gap: clamp(36px, 6vw, 78px);
}

.case-video {
  margin: 0;
  overflow: hidden;
  background: var(--navy);
  border: 1px solid var(--line);
}

.case-video video {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  background: #07151c;
}

.case-video figcaption {
  padding: 12px 15px;
  color: rgba(255, 255, 255, 0.72);
  background: var(--navy-light);
  font: 500 12px/1.5 var(--mono);
}

.module-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  border-top: 1px solid var(--line-light);
  border-left: 1px solid var(--line-light);
}

.module-card {
  min-height: 240px;
  padding: clamp(28px, 4vw, 46px);
  border-right: 1px solid var(--line-light);
  border-bottom: 1px solid var(--line-light);
}

.module-card .project-eyebrow {
  margin-bottom: 32px;
}

.module-grid.is-light {
  border-color: var(--line);
}

.module-grid.is-light .module-card {
  background: var(--white);
  border-color: var(--line);
}

.module-grid.is-light .module-card h3 {
  color: var(--ink);
}

.module-card h3 {
  color: var(--white);
  font-size: 27px;
}

.module-card p {
  margin: 18px 0 0;
}

.status-note {
  display: inline-block;
  margin-top: 24px;
  padding: 7px 9px;
  color: rgba(255, 255, 255, 0.68);
  border: 1px solid var(--line-light);
  font: 500 12px/1.2 var(--mono);
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.system-flow {
  margin: 0;
  padding: 26px;
  overflow-x: auto;
  color: #d9e4e6;
  background: var(--navy);
  border: 1px solid var(--line-light);
  font: 500 12px/1.7 var(--mono);
}

.comparison-table {
  width: 100%;
  margin-top: 34px;
  border-collapse: collapse;
  background: var(--white);
}

.comparison-table th,
.comparison-table td {
  padding: 16px;
  text-align: left;
  vertical-align: top;
  border: 1px solid var(--line);
}

.comparison-table th {
  color: var(--ink);
  background: var(--paper-deep);
  font: 600 12px/1.4 var(--mono);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.comparison-table td {
  color: var(--ink-soft);
  font-size: 13px;
}

.case-next {
  padding-block: 68px;
  color: var(--white);
  background: var(--steel-dark);
}

.case-next-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 36px;
}

.case-next h2 {
  max-width: 680px;
  margin: 0;
  font-size: clamp(30px, 4.5vw, 50px);
  line-height: 1.1;
  letter-spacing: -0.04em;
}

@media (max-width: 900px) {
  .case-hero-grid,
  .case-two-column {
    grid-template-columns: 1fr;
  }

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

  .case-summary-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .controller-flow {
    grid-template-columns: 1fr;
    max-width: 620px;
  }

  .control-node-terminal {
    border-radius: 72px;
  }

  .control-arrow {
    min-height: 38px;
    transform: rotate(90deg);
  }

  .video-evidence-grid {
    grid-template-columns: 1fr;
  }

  .case-summary-grid > div:nth-child(2) {
    border-right: 1px solid rgba(255, 255, 255, 0.14);
  }
}

@media (max-width: 680px) {
  .breadcrumb {
    margin-bottom: 34px;
  }

  .case-summary-grid,
  .case-media-grid,
  .result-grid,
  .module-grid,
  .tolerance-case-grid,
  .tolerance-image-pair,
  .controller-detail-grid {
    grid-template-columns: 1fr;
  }

  .tolerance-case-wide {
    grid-column: auto;
  }

  .tolerance-case-heading {
    align-items: flex-start;
    flex-direction: column;
  }

  .tolerance-case-heading > strong small {
    text-align: left;
  }

  .tolerance-case > img,
  .tolerance-case > .image-zoom-button img,
  .tolerance-image-pair img {
    height: auto;
    max-height: 460px;
  }

  .tolerance-image-pair img + img {
    border-top: 1px solid var(--line);
    border-left: 0;
  }

  .case-summary-grid > div {
    min-height: 104px;
    border-right: 1px solid rgba(255, 255, 255, 0.14);
    border-bottom: 1px solid rgba(255, 255, 255, 0.14);
  }

  .comparison-table {
    display: block;
    overflow-x: auto;
  }

  .case-next-inner {
    align-items: flex-start;
    flex-direction: column;
  }
}