.case-study .display-title {
  max-width: 18ch;
  font-size: clamp(2.7rem, 4.1vw, 3.8rem);
}

.process-path {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px 16px;
  margin: 0;
  padding: 0;
  font-size: 1.1rem;
  list-style: none;
}
.process-path li { display: inline-flex; align-items: center; gap: 16px; }
.process-path strong { color: var(--accent); font-weight: 400; }
.process-arrow { color: var(--muted); }

.proof {
  margin: 18px 0 0;
  padding-top: 14px;
  color: var(--muted);
  border-top: 1px solid var(--soft-rule);
}
.proof strong { color: var(--ink); font-weight: 500; }

.scope-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.scope-list li { padding: 7px 11px; border: 1px solid var(--rule); border-radius: 999px; }

.result-band {
  margin-top: 34px;
  padding: 28px;
  color: var(--paper-raised);
  background: var(--ink);
  border-radius: 16px;
}
.result-band p:last-child { margin-bottom: 0; }

.case-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px 24px;
  margin-top: 34px;
  padding-top: 18px;
  border-top: 1px solid var(--rule);
}
.case-nav-group { display: flex; align-items: center; flex-wrap: wrap; gap: 8px 22px; }

.case-study .editorial-block {
  padding-top: 0;
  border-top: 0;
}

.system-view {
  display: grid;
  grid-template-columns: minmax(180px, .42fr) minmax(0, 1.58fr);
  overflow: hidden;
  background: var(--paper-raised);
  border: 1px solid var(--rule);
  border-radius: 14px;
}
.system-view-sidebar,
.system-view-panel { padding: 24px; }
.system-view-sidebar { border-right: 1px solid var(--rule); }
.system-view-menu { display: grid; gap: 4px; margin: 20px 0 0; padding: 0; list-style: none; }
.system-view-menu li { padding: 10px 12px; color: var(--muted); border-left: 2px solid transparent; }
.system-view-menu li.is-active { color: var(--ink); background: var(--field); border-left-color: var(--accent); }
.system-view-panel-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 24px; padding-bottom: 20px; border-bottom: 1px solid var(--rule); }
.system-view-panel-head h3 { margin-bottom: 0; }
.system-view-status { flex: 0 0 auto; padding: 7px 10px; color: var(--accent-ink); border: 1px solid var(--accent); border-radius: 999px; }
.system-view-intro { max-width: 58ch; margin: 20px 0; color: var(--muted); }
.system-view-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.system-view-field,
.system-view-result { padding: 16px; background: var(--field); border: 1px solid var(--soft-rule); border-radius: 8px; }
.system-view-result { grid-column: 1 / -1; }
.system-view-field p:last-child,
.system-view-result p:last-child { margin-bottom: 0; }
.system-view-checks { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px 18px; margin: 12px 0 0; padding: 0; list-style: none; }
.system-view-checks span { margin-right: 8px; color: var(--accent); }

@media (max-width: 820px) {
  .system-view { grid-template-columns: 1fr; }
  .system-view-sidebar { border-right: 0; border-bottom: 1px solid var(--rule); }
  .system-view-menu { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .case-study .grid-3 .editorial-block + .editorial-block {
    padding-top: 22px;
    border-top: 1px solid var(--soft-rule);
  }
}

@media (max-width: 520px) {
  .case-study .display-title { font-size: clamp(2rem, 9vw, 2.5rem); }
  .case-nav,
  .system-view-panel-head { align-items: flex-start; flex-direction: column; }
  .system-view-sidebar,
  .system-view-panel { padding: 18px; }
  .system-view-grid,
  .system-view-checks,
  .system-view-menu { grid-template-columns: 1fr; }
  .case-study .grid-2 .editorial-block + .editorial-block,
  .case-study .grid-4 .editorial-block + .editorial-block {
    padding-top: 22px;
    border-top: 1px solid var(--soft-rule);
  }
}