:root {
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: #101010;
  background: #f7f7f5;
  --paper: #f7f7f5;
  --ink: #101010;
  --muted: #666;
  --line: #c9c9c4;
  --soft: #ecece8;
  --accent: #1649ff;
  --accent-soft: #e8edff;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  overflow-x: clip;
}

body {
  margin: 0;
  overflow-x: clip;
  background: var(--paper);
  color: var(--ink);
}

a { color: inherit; }

.caseShell {
  width: min(100%, 1360px);
  min-width: 0;
  margin: auto;
  padding: 0 42px 72px;
}

.caseNav {
  min-height: 68px;
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  border-bottom: 1px solid var(--ink);
  background: rgba(247, 247, 245, .96);
}

.caseBrand {
  font-weight: 760;
  text-decoration: none;
}

.caseBack {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}

.caseBack:hover { color: var(--accent); }

.caseHero {
  min-width: 0;
  padding: 84px 0 68px;
  border-bottom: 1px solid var(--ink);
}

.caseCode,
.caseFacts dt,
.railLabel,
.artifactLabel,
.stepNo {
  font: 600 12px/1.4 ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

.caseCode {
  margin: 0 0 28px;
  color: var(--accent);
}

h1, h2, h3, p { margin-top: 0; }

h1 {
  max-width: 1120px;
  margin-bottom: 42px;
  font-size: clamp(58px, 8.5vw, 126px);
  line-height: .89;
  letter-spacing: -.07em;
  font-weight: 720;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(35px, 5vw, 68px);
  line-height: .98;
  letter-spacing: -.052em;
}

h3 {
  margin-bottom: 12px;
  font-size: clamp(23px, 2.8vw, 38px);
  line-height: 1.05;
  letter-spacing: -.038em;
}

p, li, td, dd {
  color: #3f3f3f;
  line-height: 1.6;
}

.caseHeroGrid {
  min-width: 0;
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(320px, .65fr);
  gap: 74px;
}

.caseLead {
  max-width: 760px;
  margin: 0;
  font-size: clamp(23px, 2.5vw, 35px);
  line-height: 1.25;
  letter-spacing: -.026em;
}

.caseFacts {
  min-width: 0;
  margin: 0;
  border-top: 1px solid var(--ink);
}

.caseFacts div {
  display: grid;
  grid-template-columns: 98px minmax(0, 1fr);
  gap: 14px;
  padding: 11px 0;
  border-bottom: 1px solid var(--line);
}

.caseFacts dt { color: var(--muted); }
.caseFacts dd { min-width: 0; margin: 0; font-size: 14px; }

.caseSection {
  min-width: 0;
  display: grid;
  grid-template-columns: minmax(150px, .34fr) minmax(0, 1.66fr);
  gap: 56px;
  padding: 88px 0;
  border-bottom: 1px solid var(--ink);
}

.sectionRail { min-width: 0; padding-top: 5px; }
.railLabel { color: var(--accent); }

.caseCopy {
  width: 100%;
  min-width: 0;
  max-width: 980px;
}

.caseCopy > p {
  max-width: 780px;
  font-size: 18px;
}

.caseCopy .largeCopy {
  max-width: 900px;
  font-size: clamp(24px, 3vw, 39px);
  line-height: 1.27;
  letter-spacing: -.028em;
  color: #202020;
}

.artifact {
  width: 100%;
  min-width: 0;
  max-width: 100%;
  margin-top: 46px;
  border-top: 1px solid var(--ink);
}

.artifactLabel {
  min-width: 0;
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
}

.flow {
  min-width: 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.flow article {
  min-width: 0;
  min-height: 220px;
  padding: 24px 24px 28px 0;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.flow article:nth-child(3n + 2),
.flow article:nth-child(3n + 3) { padding-left: 24px; }
.flow article:nth-child(3n) { border-right: 0; }

.stepNo {
  display: block;
  margin-bottom: 44px;
  color: var(--accent);
}

.flow h3 { font-size: 23px; }
.flow p { margin: 0; font-size: 15px; }

.decisionList {
  min-width: 0;
  border-top: 1px solid var(--ink);
}

.decision {
  min-width: 0;
  display: grid;
  grid-template-columns: 78px minmax(220px, .65fr) minmax(0, 1.35fr);
  gap: 34px;
  padding: 26px 0;
  border-bottom: 1px solid var(--line);
}

.decision > span {
  font: 600 12px/1.4 ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  color: var(--accent);
}

.decision h3 { margin: 0; font-size: 24px; }
.decision p { min-width: 0; margin: 0; }

.dataTable {
  width: 100%;
  max-width: 100%;
  border-collapse: collapse;
  border-top: 1px solid var(--ink);
  font-size: 15px;
}

.dataTable th,
.dataTable td {
  min-width: 0;
  padding: 14px 12px 14px 0;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
  overflow-wrap: anywhere;
}

.dataTable th {
  font: 650 11px/1.4 ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  color: var(--muted);
}

.dataTable td strong { color: var(--ink); }

.timeline {
  min-width: 0;
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  border-top: 1px solid var(--ink);
}

.timeline article {
  min-width: 0;
  min-height: 205px;
  padding: 22px 18px 24px 0;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.timeline article + article { padding-left: 18px; }
.timeline article:last-child { border-right: 0; }

.timeline strong {
  display: block;
  margin-bottom: 48px;
  font: 650 12px/1.4 ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  color: var(--accent);
}

.timeline p { margin: 0; font-size: 15px; }

.evidenceGrid {
  min-width: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--ink);
}

.evidenceGrid article {
  min-width: 0;
  padding: 25px 30px 28px 0;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.evidenceGrid article:nth-child(even) {
  padding-left: 30px;
  border-right: 0;
}

.evidenceGrid h3 { font-size: 24px; }
.evidenceGrid p { margin: 0; }

.boundary {
  min-width: 0;
  margin-inline: -42px;
  padding: 88px 42px;
  background: var(--ink);
  color: #fff;
}

.boundary .caseSection { padding: 0; border: 0; }
.boundary h2,
.boundary p,
.boundary li { color: #fff; }
.boundary .railLabel { color: #7da0ff; }
.boundary .caseCopy > p { color: #c8c8c8; }

.boundaryList {
  margin: 36px 0 0;
  padding: 0;
  border-top: 1px solid #fff;
  list-style: none;
}

.boundaryList li {
  min-width: 0;
  display: grid;
  grid-template-columns: 190px minmax(0, 1fr);
  gap: 28px;
  padding: 16px 0;
  border-bottom: 1px solid #555;
}

.boundaryList strong { color: #fff; }

.nextStep {
  border-left: 4px solid var(--accent);
  padding: 4px 0 4px 22px;
}

.caseFooter { min-width: 0; padding-top: 72px; }
.caseFooter h2 { max-width: 900px; }

.caseFooterLinks {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  margin-top: 30px;
}

.caseFooterLinks a {
  min-height: 46px;
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  border-bottom: 1px solid currentColor;
  font-weight: 720;
}

.caseFooterLinks a:first-child {
  padding: 0 16px;
  border: 1px solid var(--ink);
  background: var(--ink);
  color: #fff;
}

.caseFooterLine {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  margin-top: 80px;
  padding-top: 16px;
  border-top: 1px solid var(--ink);
  font: 600 12px/1.4 ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

@media (max-width: 980px) {
  .caseShell { padding-inline: 24px; }
  .boundary { margin-inline: -24px; padding-inline: 24px; }
  .caseHeroGrid { gap: 40px; }

  .timeline { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .timeline article:nth-child(2n) { border-right: 0; }
  .timeline article:last-child { grid-column: 1 / -1; }

  .flow { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .flow article:nth-child(3n) { border-right: 1px solid var(--line); }
  .flow article:nth-child(2n) { border-right: 0; }
  .flow article:nth-child(odd) { padding-left: 0; }
  .flow article:nth-child(even) { padding-left: 24px; }

  .decision { grid-template-columns: 60px minmax(0, 1fr); }
  .decision p { grid-column: 2; }
}

@media (max-width: 760px) {
  .caseShell { padding-inline: 16px; }
  .boundary { margin-inline: -16px; padding-inline: 16px; }
  .caseHero { padding-top: 58px; }

  .caseHeroGrid,
  .caseSection {
    grid-template-columns: minmax(0, 1fr);
    gap: 24px;
  }

  .caseSection { padding: 64px 0; }
  .sectionRail { padding: 0; }
  .caseFacts { margin-top: 10px; }

  .flow,
  .evidenceGrid,
  .timeline { grid-template-columns: minmax(0, 1fr); }

  .flow article,
  .flow article:nth-child(n),
  .evidenceGrid article,
  .evidenceGrid article:nth-child(even),
  .timeline article,
  .timeline article + article {
    min-height: 0;
    padding: 22px 0;
    border-right: 0;
  }

  .timeline article:last-child { grid-column: auto; }
  .stepNo,
  .timeline strong { margin-bottom: 18px; }

  .decision {
    grid-template-columns: 42px minmax(0, 1fr);
    gap: 16px;
  }

  .dataTable,
  .dataTable thead,
  .dataTable tbody,
  .dataTable tr,
  .dataTable th,
  .dataTable td {
    display: block;
    width: 100%;
  }

  .dataTable {
    border-top: 1px solid var(--ink);
  }

  .dataTable thead {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
    clip-path: inset(50%);
    white-space: nowrap;
  }

  .dataTable tr {
    padding: 16px 0;
    border-bottom: 1px solid var(--line);
  }

  .dataTable td {
    padding: 4px 0;
    border: 0;
    white-space: normal;
    overflow-wrap: anywhere;
  }

  .dataTable td:first-child {
    margin-bottom: 4px;
    color: var(--ink);
  }

  .boundaryList li {
    grid-template-columns: minmax(0, 1fr);
    gap: 6px;
  }

  .caseFooterLine { flex-direction: column; }
}

@media (max-width: 520px) {
  .caseBrand { font-size: 14px; }
  .caseBack { font-size: 13px; }

  h1 {
    font-size: clamp(46px, 14vw, 66px);
    overflow-wrap: normal;
    word-break: normal;
    hyphens: none;
  }

  .caseLead { font-size: 23px; }

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

  .caseFooterLinks {
    flex-direction: column;
    align-items: flex-start;
  }

  .caseFooterLinks a:first-child {
    width: 100%;
    justify-content: space-between;
  }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}