.case-main {
  --technical-signal: var(--case-technical-accent);
  --technical-wash: var(--case-technical-soft);
}

#technical-app.route-workspace {
  grid-template-columns: var(--technical-index-width) minmax(0, 1fr);
}

.case-file-index {
  display: flex;
  flex-direction: column;
  border-right: 1px solid var(--line);
}

.case-file-index__control {
  display: grid;
  grid-template-columns: 2rem minmax(0, 1fr);
  gap: var(--space-1) var(--space-2);
  align-items: center;
  min-height: var(--technical-control-height);
  padding: var(--space-2) var(--space-3);
  border-bottom: 1px solid var(--line);
  color: var(--ink-soft);
  background: transparent;
  cursor: pointer;
  text-align: left;
}

.case-file-index__control:last-child { border-bottom: 0; }
.case-file-index__control > span {
  color: var(--technical-signal);
  font-family: var(--font-mono);
  font-size: var(--type-tiny);
}
.case-file-index__control > strong { font-size: 0.95rem; line-height: 1.1; }
.case-file-index__control > small {
  grid-column: 2;
  font-size: 0.7rem;
  line-height: 1.25;
}
.case-file-index__control:hover { color: var(--ink); background: var(--technical-wash); }
.case-file-index__control[aria-selected="true"] { color: var(--surface); background: var(--technical-signal); }
.case-file-index__control[aria-selected="true"] > span { color: var(--surface); }

.case-file-summary {
  display: grid;
  align-content: center;
  min-height: var(--technical-panel-min-height);
  padding: var(--space-5);
}

.case-file-summary__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
}
.case-file-summary__meta p { margin: 0; color: var(--technical-signal); }
.case-file-summary__meta > span,
.case-file-visual__header > span {
  color: var(--ink-soft);
  font-family: var(--font-mono);
  font-size: var(--type-tiny);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.case-file-summary > h3 {
  max-width: 26ch;
  margin: var(--space-2) 0 0;
  font-size: clamp(1.75rem, 3vw, 2.8rem);
  letter-spacing: -0.06em;
  line-height: 0.98;
}
.case-file-summary > p { max-width: 50rem; margin: var(--space-3) 0 0; color: var(--ink-soft); }

.case-file-visual {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--control-radius);
  background: var(--surface);
}
.case-file-visual__header {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: var(--space-4);
  align-items: end;
  padding: var(--space-4);
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--technical-wash) 55%, var(--surface));
}
.case-file-visual__header p { margin: 0; color: var(--technical-signal); }
.case-file-visual__header h3 {
  max-width: 44rem;
  margin: var(--space-2) 0 0;
  font-size: clamp(1.35rem, 2vw, 2rem);
  letter-spacing: -0.04em;
  line-height: 1.05;
}

.case-file-experience { min-height: var(--technical-stage-min-height); }
.case-stage-panel {
  display: grid;
  align-content: center;
  min-width: 0;
  padding: var(--space-4);
  background: var(--surface);
}
.case-stage-panel__evidence,
.outcome-lens-panel span,
.outcome-decision span,
.handoff-progress span {
  margin: 0;
  color: var(--technical-signal);
  font-family: var(--font-mono);
  font-size: var(--type-tiny);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.case-stage-panel h3 { margin: var(--space-2) 0 0; font-size: clamp(1.4rem, 2.4vw, 2.35rem); letter-spacing: -0.05em; line-height: 1; }
.case-stage-panel > p:last-child { max-width: 42rem; margin: var(--space-3) 0 0; color: var(--ink-soft); }

.case-file-experience--visibility {
  display: grid;
  grid-template-columns: 12rem minmax(10rem, 0.7fr) minmax(0, 1.3fr);
}
.visibility-stack { display: flex; flex-direction: column; border-right: 1px solid var(--line); }
.visibility-stack__control,
.incident-timeline__control,
.triage-ladder__control {
  display: grid;
  grid-template-columns: 2rem minmax(0, 1fr);
  gap: var(--space-2);
  align-items: center;
  min-height: var(--technical-control-height);
  padding: var(--space-2) var(--space-3);
  border-bottom: 1px solid var(--line);
  color: var(--ink-soft);
  background: transparent;
  cursor: pointer;
  text-align: left;
}
.visibility-stack__control span,
.incident-timeline__control span,
.triage-ladder__control span { color: var(--technical-signal); font-family: var(--font-mono); font-size: var(--type-tiny); }
.visibility-stack__control[aria-selected="true"],
.incident-timeline__control[aria-selected="true"],
.triage-ladder__control[aria-selected="true"] { color: var(--surface); background: var(--technical-signal); }
.visibility-stack__control[aria-selected="true"] span,
.incident-timeline__control[aria-selected="true"] span,
.triage-ladder__control[aria-selected="true"] span { color: var(--surface); }
.visibility-stack__route {
  position: relative;
  display: grid;
  align-content: center;
  gap: var(--space-3);
  padding: var(--space-4);
  border-right: 1px solid var(--line);
  background:
    linear-gradient(90deg, color-mix(in srgb, var(--line) 40%, transparent) 1px, transparent 1px),
    linear-gradient(0deg, color-mix(in srgb, var(--line) 40%, transparent) 1px, transparent 1px),
    var(--proof-surface);
  background-size: var(--proof-grid-unit) var(--proof-grid-unit);
}
.visibility-stack__route::before { position: absolute; top: 50%; left: var(--space-4); right: var(--space-4); border-top: 2px solid var(--technical-signal); content: ""; }
.visibility-stack__route span {
  position: relative;
  z-index: 1;
  width: fit-content;
  padding: var(--space-1) var(--space-2);
  border: 1px solid var(--technical-signal);
  border-radius: var(--control-radius);
  background: var(--surface);
  font-family: var(--font-mono);
  font-size: var(--type-tiny);
}
.visibility-stack__route span:nth-child(even) { justify-self: end; }

.case-file-experience--http { display: grid; grid-template-columns: minmax(12rem, 0.55fr) minmax(0, 1.45fr); }
.outcome-lenses { display: flex; flex-direction: column; border-right: 1px solid var(--line); }
.outcome-lenses button {
  display: grid;
  grid-template-columns: 2rem minmax(0, 1fr);
  gap: var(--space-2);
  align-items: center;
  min-height: calc(var(--technical-stage-min-height) / 2);
  padding: var(--space-3);
  border-bottom: 1px solid var(--line);
  color: var(--ink-soft);
  background: transparent;
  cursor: pointer;
  text-align: left;
}
.outcome-lenses button:last-child { border-bottom: 0; }
.outcome-lenses button > span { color: var(--technical-signal); font-family: var(--font-mono); font-size: var(--type-tiny); }
.outcome-lenses button[aria-selected="true"] { color: var(--surface); background: var(--technical-signal); }
.outcome-lenses button[aria-selected="true"] > span { color: var(--surface); }
.outcome-lens-panel { display: grid; align-content: center; gap: var(--space-3); padding: var(--space-4); }
.outcome-lens-panel > div:first-child { display: grid; gap: var(--space-1); }
.outcome-lens-panel > div:first-child strong { font-size: clamp(1.4rem, 2.4vw, 2.35rem); letter-spacing: -0.05em; line-height: 1; }
.outcome-lens-panel > p { max-width: 42rem; margin: 0; color: var(--ink-soft); }
.outcome-decision { display: grid; grid-template-columns: 10rem minmax(0, 1fr); gap: var(--space-3); align-items: baseline; padding-top: var(--space-3); border-top: 1px solid var(--line); }
.http-path {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
  list-style: none;
}
.http-path li { display: grid; gap: var(--space-1); padding: var(--space-3); border-right: 1px solid var(--line); }
.http-path li:last-child { border-right: 0; }
.http-path span { color: var(--technical-signal); font-family: var(--font-mono); font-size: var(--type-tiny); }
.http-path small { color: var(--ink-soft); line-height: 1.25; }

.case-file-experience--timeline { display: grid; }
.incident-timeline { position: relative; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border-bottom: 1px solid var(--line); }
.incident-timeline::before { position: absolute; top: 50%; left: 8%; right: 8%; border-top: 1px solid var(--technical-signal); content: ""; }
.incident-timeline__control { position: relative; z-index: 1; grid-template-columns: 1fr; justify-items: center; border-right: 1px solid var(--line); border-bottom: 0; background: var(--surface); text-align: center; }
.incident-timeline__control:last-child { border-right: 0; }

.case-file-experience--ladder { display: grid; grid-template-columns: minmax(15rem, 0.8fr) minmax(0, 1.2fr); }
.triage-ladder { display: grid; align-content: center; gap: var(--space-1); padding: var(--space-3); border-right: 1px solid var(--line); background: var(--proof-surface); }
.triage-ladder__control { min-height: 3.25rem; border: 1px solid var(--line); background: var(--surface); }
.triage-ladder__control:nth-child(2) { margin-left: var(--space-2); }
.triage-ladder__control:nth-child(3) { margin-left: var(--space-4); }
.triage-ladder__control:nth-child(4) { margin-left: var(--space-5); }

.case-file-experience--handoff { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(16rem, 0.6fr); }
.handoff-progress { grid-column: 1 / -1; display: flex; justify-content: space-between; gap: var(--space-3); padding: var(--space-2) var(--space-4); border-bottom: 1px solid var(--line); }
.handoff-workspace { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); border-right: 1px solid var(--line); }
.handoff-workspace button {
  display: grid;
  grid-template-columns: 2rem minmax(0, 1fr);
  gap: var(--space-1) var(--space-2);
  min-height: 7rem;
  padding: var(--space-3);
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  color: var(--ink-soft);
  background: transparent;
  cursor: pointer;
  text-align: left;
}
.handoff-workspace button:nth-child(even) { border-right: 0; }
.handoff-workspace button:nth-last-child(-n + 2) { border-bottom: 0; }
.handoff-workspace button > span { color: var(--technical-signal); font-family: var(--font-mono); font-size: var(--type-tiny); }
.handoff-workspace button > small { grid-column: 2; }
.handoff-workspace button[aria-pressed="true"] { color: var(--ink); background: var(--technical-wash); }
.handoff-readout { display: grid; align-content: center; padding: var(--space-4); }
.handoff-readout h3 { margin: 0; font-size: 1.45rem; letter-spacing: -0.04em; line-height: 1.05; }
.handoff-readout p { margin: var(--space-2) 0 0; color: var(--ink-soft); }

@media (max-width: 54rem) {
  #technical-app.route-workspace { grid-template-columns: 1fr; }
  .case-file-index { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border-right: 0; border-bottom: 1px solid var(--line); }
  .case-file-index__control { border-right: 1px solid var(--line); }
  .case-file-index__control:nth-child(3) { border-right: 0; }
  .case-file-experience--visibility { grid-template-columns: 11rem minmax(0, 1fr); }
  .visibility-stack__route { display: none; }
  .case-file-experience--handoff { grid-template-columns: 1fr; }
  .handoff-workspace { border-right: 0; border-bottom: 1px solid var(--line); }
}

@media (max-width: 38rem) {
  .case-file-index { grid-template-columns: 1fr; }
  .case-file-index__control { min-height: 0; border-right: 0; }
  .case-file-summary { min-height: 0; padding: var(--space-4); }
  .case-file-visual__header { grid-template-columns: 1fr; gap: var(--space-2); }
  .case-file-experience--visibility,
  .case-file-experience--http,
  .case-file-experience--ladder { grid-template-columns: 1fr; }
  .visibility-stack,
  .outcome-lenses,
  .triage-ladder { border-right: 0; border-bottom: 1px solid var(--line); }
  .visibility-stack { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .outcome-lenses { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .outcome-lenses button { min-height: 5rem; border-right: 1px solid var(--line); border-bottom: 0; }
  .triage-ladder__control:nth-child(n) { margin-left: 0; }
  .incident-timeline { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .incident-timeline::before { display: none; }
  .incident-timeline__control:nth-child(2) { border-right: 0; }
  .incident-timeline__control:nth-child(-n + 2) { border-bottom: 1px solid var(--line); }
  .http-path { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .http-path li:nth-child(2) { border-right: 0; }
  .http-path li:nth-child(-n + 2) { border-bottom: 1px solid var(--line); }
  .outcome-decision { grid-template-columns: 1fr; gap: var(--space-1); }
  .handoff-workspace { grid-template-columns: 1fr; }
  .handoff-workspace button:nth-child(n) { min-height: 0; border-right: 0; border-bottom: 1px solid var(--line); }
  .handoff-workspace button:last-child { border-bottom: 0; }
}

@media (prefers-reduced-motion: reduce) {
  .case-file-visual *, .case-file-visual *::before, .case-file-visual *::after { transition-duration: 1ms !important; }
}