/* Each theme changes only local case tokens. Brand/header/CTA stay shared. */
.case-page {
  --case-accent: #38346e;
  --case-label: #38346e;
  --case-panel: #e4e2f2;
  --case-soft: #eceaf6;
  --case-result: #38346e;
  --case-result-label: #d2cfed;
  --case-result-line: #a9a6dc;
  --case-crop-position: left top;
}
.case-page.tone-blue {
  --case-accent: #3f6178;
  --case-label: #2f4a5c;
  --case-panel: #dde6ec;
  --case-soft: #e8eef2;
  --case-result: #2f4a5c;
  --case-result-label: #b9cdda;
  --case-result-line: #9fb8c8;
  --case-crop-position: 40% top;
}
.case-page.tone-olive {
  --case-accent: #5c6638;
  --case-label: #4a5236;
  --case-panel: #e6e3cf;
  --case-soft: #efeddd;
  --case-result: #4a5236;
  --case-result-label: #d6dcb1;
  --case-result-line: #c9cfa0;
  --case-crop-position: 40% top;
}
.case-page .lb {
  background: var(--case-panel);
  color: var(--case-label);
}
.bg-soft {
  background: var(--case-soft);
}
.cs2 {
  padding: 72px 0;
}
.bg-white {
  background: var(--paper);
}
.bg-lilac {
  background: var(--case-soft);
}
.crumb {
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 20px;
  display: block;
  width: fit-content;
}
.case-hero {
  display: grid;
  grid-template-columns: 5fr 7fr;
  gap: 48px;
  align-items: center;
  padding-top: 40px;
  padding-bottom: 64px;
}
.case-hero > * {
  min-width: 0;
}
.case-hero h1 {
  margin: 6px 0 4px;
  font-size: 56px;
  line-height: 1;
  font-weight: 800;
  letter-spacing: -0.02em;
}
.case-subtitle {
  color: var(--muted);
  font-size: 17px;
  margin: 0;
}
.th {
  font-size: 24px;
  line-height: 1.3;
  font-weight: 700;
  margin: 20px 0 12px;
  letter-spacing: -0.01em;
}
.case-intro {
  font-size: 16px;
}
.out {
  display: grid;
  gap: 6px;
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
  font-size: 15px;
}
.out li::before {
  content: "✓ ";
  color: #2e7d4f;
  font-weight: 700;
}
.ipn {
  background: var(--case-panel);
  border-radius: 20px;
  padding: 28px;
}
.kk {
  color: var(--case-accent);
}
.sh {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: end;
  margin-bottom: 28px;
}
.sh h2 {
  margin: 6px 0 0;
}
.sh p {
  margin: 0;
  font-size: 17px;
  color: var(--muted);
}
.two {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}
.two > * {
  min-width: 0;
}
.two .sub {
  font-size: 17px;
  margin-top: 12px;
}
.ul {
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
  font-size: 16px;
}
.ul li {
  padding-left: 22px;
  position: relative;
}
.ul li::before {
  content: "–";
  position: absolute;
  left: 0;
  color: var(--case-accent);
  font-weight: 700;
}
.problem-diagram {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.problem-diagram ul {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
}
.nd {
  background: var(--paper);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px 16px;
  font-size: 14px;
  font-weight: 600;
}
.nd small {
  display: block;
  font-weight: 500;
  color: var(--muted);
  font-size: 12px;
}
.nd.negative {
  background: #f6e3e0;
  border-color: #e3b6ae;
}
.ar {
  color: var(--case-accent);
  font-weight: 700;
}
.data-flow {
  display: flex;
  align-items: stretch;
  gap: 36px;
  flex-wrap: wrap;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
}
.data-flow .nd {
  position: relative;
}
.data-flow .nd:not(:last-child)::after {
  content: "→";
  position: absolute;
  left: calc(100% + 12px);
  top: 50%;
  transform: translateY(-50%);
  color: var(--case-accent);
}
.screenshot-region {
  min-width: 0;
  border-radius: 14px;
}
.architecture-scroll {
  overflow-x: auto;
  padding: 3px;
  margin: -3px;
  overscroll-behavior-x: contain;
}
.architecture-scroll .fr {
  min-width: 880px;
  box-shadow: none;
}
.levels {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 16px;
  margin: 24px 0 0;
  font-size: 14px;
  color: var(--muted);
}
.levels > div {
  border-top: 2px solid var(--case-accent);
  padding-top: 10px;
}
.levels dt {
  color: var(--ink);
  font-size: 15px;
  font-weight: 700;
}
.levels dd {
  margin: 0;
}
.callouts {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 20px;
}
.callouts > div {
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 20px;
  font-size: 16px;
}
.callouts h3 {
  margin: 0 0 4px;
  font-size: 19px;
  font-weight: 800;
}
.callouts p {
  margin: 0;
}
.callout-1 {
  background: #f6e3e0;
  border-color: #d9968b !important;
}
.callout-1 h3 {
  color: #8f2d22;
}
.callout-2 {
  background: #f8ebd2;
  border-color: #d8b36a !important;
}
.callout-2 h3 {
  color: #7a4e0e;
}
.case-results {
  background: var(--case-result);
  color: white;
}
.case-results .kk {
  color: var(--case-result-label);
}
.results-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 20px;
  margin: 32px 0 0;
  padding: 0;
  list-style: none;
}
.results-grid li {
  grid-column: span 2;
  border-top: 2px solid var(--case-result-line);
  padding-top: 14px;
  font-size: 16px;
  line-height: 1.4;
}
.results-grid .key {
  grid-column: span 3;
  font-size: 24px;
  font-weight: 700;
  line-height: 1.25;
  border-top-width: 3px;
}
.stack-section {
  padding: 48px 0;
}
.tech-stack {
  font-size: 20px;
  line-height: 1.5;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin: 12px 0 6px;
}
.stack-section p {
  margin: 0;
}
.mobile-hint {
  display: none;
  font-size: 12px;
  color: var(--muted);
  margin: 0 0 10px;
}
.case-cta {
  padding-top: 24px;
}
.case-cta .cta {
  grid-template-columns: 1.2fr 1fr;
}
.case-cta .cta-intro {
  margin: 0;
}
@media (max-width: 1100px) {
  .case-hero {
    gap: 32px;
  }
  .two {
    gap: 32px;
  }
  .data-flow {
    gap: 30px;
  }
  .data-flow .nd:not(:last-child)::after {
    left: calc(100% + 9px);
  }
}
@media (max-width: 900px) {
  .case-hero {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .case-hero > div:first-child {
    max-width: 680px;
  }
  .sh,
  .two {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .two .sub {
    max-width: none;
  }
  .problem-diagram {
    justify-content: center;
    margin-top: 12px;
  }
  .levels {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .case-cta .cta {
    grid-template-columns: 1fr;
  }
  .mobile-hint {
    display: block;
  }
  .data-flow {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .data-flow .nd:nth-child(3)::after {
    display: none;
  }
}
@media (max-width: 600px) {
  .case-hero {
    padding-top: 24px;
    padding-bottom: 40px;
  }
  .case-hero h1 {
    font-size: 40px;
  }
  .th {
    font-size: 20px;
  }
  .cs2 {
    padding: 44px 0;
  }
  .ipn {
    padding: 14px;
  }
  .ipn img,
  .dashboard-preview img {
    width: 100%;
    height: 260px;
    object-fit: cover;
    object-position: var(--case-crop-position);
  }
  .levels,
  .results-grid,
  .callouts {
    grid-template-columns: 1fr;
  }
  .levels {
    gap: 16px;
  }
  .results-grid li,
  .results-grid .key {
    grid-column: auto;
  }
  .results-grid .key {
    font-size: 20px;
  }
  .data-flow {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  .data-flow .nd:not(:last-child)::after,
  .data-flow .nd:nth-child(3)::after {
    display: block;
    content: "↓";
    left: 50%;
    top: calc(100% + 3px);
    transform: none;
  }
  .problem-diagram {
    flex-direction: column;
    align-items: stretch;
  }
  .problem-diagram .ar {
    align-self: center;
    transform: rotate(90deg);
  }
  .case-cta .btn {
    width: 100%;
  }
  .cta-links {
    justify-items: stretch;
  }
  .cta-links > a:not(.btn) {
    text-align: center;
  }
  .architecture-scroll .fr img {
    max-width: none;
  }
  .stack-section {
    padding: 32px 0;
  }
}

/* Optional content patterns shared by all case definitions. */
.case-hero h1.title-compact {
  font-size: 46px;
}
.ipn {
  position: relative;
}
.ipn .hero-supporting {
  position: absolute;
  left: 14px;
  bottom: 14px;
  width: 34%;
}
.feature-summary {
  font-size: 19px;
  font-weight: 700;
  line-height: 1.3;
  margin: 20px 0 12px;
  letter-spacing: -0.01em;
}
.feature-note {
  color: var(--muted);
  font-size: 15px;
  margin: 16px 0 0;
}
.feature-note.mono {
  font-size: 12px;
  margin-top: 20px;
}
.feature-split {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 56px;
  align-items: center;
}
.feature-split > * {
  min-width: 0;
}
.feature-visual {
  width: 100%;
  max-width: 420px;
  justify-self: center;
  margin: 0;
}
.feature-copy > .sub {
  margin-top: 8px;
}
.feature-copy:not(:has(h2)) > .sub {
  font-size: 17px;
}
.feature-checklist {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px 32px;
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
  font-size: 15px;
}
.feature-checklist.columns-1 {
  grid-template-columns: 1fr;
}
.feature-checklist.columns-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}
.feature-checklist li {
  padding-left: 18px;
  position: relative;
}
.feature-checklist li::before {
  content: "✓";
  color: #2e7d4f;
  position: absolute;
  left: 0;
  font-weight: 700;
}
.feature-top {
  align-items: start;
}
.feature-flow {
  display: flex;
  gap: 28px;
  flex-wrap: wrap;
  align-items: center;
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
}
.feature-flow li {
  position: relative;
}
.feature-flow li:not(:last-child)::after {
  content: "→";
  position: absolute;
  left: calc(100% + 9px);
  top: 50%;
  transform: translateY(-50%);
  font-weight: 700;
  color: var(--case-accent);
}
.feature-flow.flow-plus li:not(:last-child)::after {
  content: "+";
}
.results-four {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}
.results-four li {
  grid-column: span 1;
}
.results-four .key {
  grid-column: span 2;
}
@media (max-width: 900px) {
  .feature-split {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .ipn .hero-supporting {
    display: none;
  }
  .feature-visual {
    max-width: 420px;
  }
}
@media (max-width: 600px) {
  .case-hero h1.title-compact {
    font-size: 36px;
    line-height: 1.08;
  }
  .feature-visual {
    max-width: 100%;
  }
  .feature-checklist,
  .feature-checklist.columns-3 {
    grid-template-columns: 1fr;
  }
  .feature-flow {
    flex-direction: column;
    align-items: stretch;
    gap: 30px;
  }
  .feature-flow li:not(:last-child)::after {
    content: "↓";
    left: 50%;
    top: calc(100% + 4px);
    transform: none;
  }
  .feature-flow.flow-plus li:not(:last-child)::after {
    content: "+";
  }
  .results-four {
    grid-template-columns: 1fr;
  }
  .results-four li,
  .results-four .key {
    grid-column: auto;
  }
  /* Narrow strips keep readable text scale; lightbox opens the complete source. */
  .strip-preview .fr {
    overflow: hidden;
  }
  .strip-preview img {
    width: 840px;
    max-width: none;
    height: auto;
  }
  .table-preview .fr {
    overflow: hidden;
  }
  .table-preview img {
    width: 820px;
    max-width: none;
    height: auto;
  }
}

@media (max-width: 600px) {
  .strip-preview.preview-center img {
    margin-left: calc((100% - 840px) / 2);
  }
  .table-preview.preview-right img {
    margin-left: calc(100% - 820px);
  }
}