/* SIND Case Studies listing (/case-studies/) — sections + two-pane browser.
   Left pane: filterable title list. Right pane: the selected case body, using
   the shared .sind-case-* styles (sind-case.css is enqueued on this page too). */

.sind-cases { padding: 6px 0 56px; }

/* 1. Stats strip ---------------------------------------------------------- */
.sind-cases-stats { display: flex; flex-wrap: wrap; gap: 14px 34px; margin: 0 0 30px; }
.sind-cases-stats span {
  font-size: 13.5px;
  color: var(--mut);
  padding-left: 14px;
  border-left: 2px solid var(--blue);
}
.sind-cases-stats strong { color: var(--ink); font-weight: 800; }

/* 2. Filter bar ----------------------------------------------------------- */
.sind-cases-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}
.sind-cases-tabs { display: flex; flex-wrap: wrap; gap: 10px; }
.sind-cases-tabs .sind-tab-btn { font-size: 13.5px; padding: 10px 16px; }
.sind-cases-tabs__n { color: var(--mut); font-weight: 700; }
.sind-cases-tabs .sind-tab-btn.active .sind-cases-tabs__n { color: rgba(255, 255, 255, .8); }

/* 3. Two-pane browser ----------------------------------------------------- */
.sind-cases-split {
  display: grid;
  grid-template-columns: minmax(300px, 360px) minmax(0, 1fr);
  gap: 26px;
  align-items: start;
}

.sind-cases-list {
  position: sticky;
  top: 88px;
  max-height: calc(100vh - 120px);
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 2px 6px 2px 2px;
}
.sind-cases-item {
  display: block;
  padding: 12px 14px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  text-decoration: none;
  transition: border-color .15s ease, background .15s ease;
}
.sind-cases-item:hover { border-color: var(--blue); }
.sind-cases-item:focus-visible { outline: 2px solid var(--blue); outline-offset: 2px; }
.sind-cases-item.is-active { border-color: var(--blue); background: var(--blue-soft); }
.sind-cases-item[hidden] { display: none; }
.sind-cases-item__cat {
  display: block;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--blue);
  margin-bottom: 4px;
}
.sind-cases-item__draft {
  display: inline-block;
  margin-bottom: 4px;
  padding: 2px 8px;
  border-radius: 999px;
  background: #fff3cd;
  color: #7a5c00;
  font-size: 10.5px;
  font-weight: 800;
  letter-spacing: .06em;
  text-transform: uppercase;
}
.sind-cases-item__title {
  display: block;
  font-size: 14.5px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--ink);
}
.sind-cases-item__year { display: block; margin-top: 5px; font-size: 12px; color: var(--mut); font-weight: 600; }

.sind-cases-detail {
  min-width: 0;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  min-height: 460px;
}
.sind-cases-detail__bar {
  display: flex;
  justify-content: flex-end;
  padding: 10px 16px;
  background: var(--bg);
  border-bottom: 1px solid var(--line);
}
.sind-cases-detail__full { font-size: 13px; font-weight: 700; color: var(--blue); text-decoration: none; }
.sind-cases-detail__full:hover { color: var(--blue-dark); }
.sind-cases-detail__loading { padding: 70px 24px; text-align: center; color: var(--mut); font-size: 15px; }

/* Case body scaled to the pane.
   The pane is narrower than the window, so the case markup has to adapt to the
   PANE width — viewport media queries can never see that. Container queries can. */
.sind-cases-detail { container-type: inline-size; container-name: casepane; }

.sind-cases-detail .sind-case-hero { padding: 34px 0 30px; }
.sind-cases-detail .sind-case-hero-inner { max-width: none; padding: 0 26px; }
.sind-cases-detail .sind-case-hero h1,
.sind-cases-detail .sind-case-hero h2 { font-size: clamp(22px, 3.6cqi, 28px); }
.sind-cases-detail .sind-case-kpi-bar { max-width: none; margin: -20px 0 0; padding: 0 26px; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 10px; }
.sind-cases-detail .sind-kpi { padding: var(--pad-s); }
.sind-cases-detail .sind-case-section { max-width: none; padding: 24px 26px 4px; }
/* Closing footnote block: inset to the pane's text column (sections carry the
   26px horizontal padding) so its hairline aligns with the content edges. */
.sind-cases-detail .sind-case-foot { max-width: none; margin: 0 26px; padding: 20px 0 28px; }
/* Section headings must stay smaller than the case title. The global h2 is
   viewport-based and would render at ~34px here, dwarfing the 27px title. */
.sind-cases-detail .sind-case-section > h2 { font-size: clamp(20px, 3cqi, 24px); }
/* Wide spec tables must never push the pane sideways. */
.sind-cases-detail .sind-data-table { table-layout: fixed; }
.sind-cases-detail .sind-spec-compare,
.sind-cases-detail .sind-equipment-row { min-width: 0; }

@container casepane (max-width: 860px) {
  .sind-cases-detail .sind-case-kpi-bar { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .sind-cases-detail .sind-equipment-row { grid-template-columns: 1fr; gap: 18px; }
  .sind-cases-detail .sind-challenge-grid,
  .sind-cases-detail .sind-solution-grid,
  .sind-cases-detail .sind-feedback-grid,
  .sind-cases-detail .sind-analysis-cards { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@container casepane (max-width: 620px) {
  .sind-cases-detail .sind-challenge-grid,
  .sind-cases-detail .sind-solution-grid,
  .sind-cases-detail .sind-feedback-grid,
  .sind-cases-detail .sind-analysis-cards { grid-template-columns: 1fr; }
  .sind-cases-detail .sind-spec-compare { grid-template-columns: 1fr; }
  .sind-cases-detail .sind-case-hero-inner,
  .sind-cases-detail .sind-case-kpi-bar,
  .sind-cases-detail .sind-case-section { padding-left: 24px; padding-right: 24px; }
  .sind-cases-detail .sind-case-foot { margin-left: 24px; margin-right: 24px; }
  .sind-cases-detail .sind-data-table th,
  .sind-cases-detail .sind-data-table td { padding: 12px; font-size: 12.5px; }
  .sind-cases-detail .sind-step { padding: 16px; gap: 12px; }
}

@container casepane (max-width: 420px) {
  .sind-cases-detail .sind-case-hero { padding: 26px 0 24px; }
  .sind-cases-detail .sind-case-kpi-bar { grid-template-columns: 1fr; margin-top: -16px; }
}

/* 4. Empty state ---------------------------------------------------------- */
.sind-cases-empty { text-align: center; color: var(--mut); font-size: 14.5px; padding: 22px 0; }
.sind-cases-empty--panel {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 40px 24px;
}

@media (max-width: 991px) {
  .sind-cases-split { grid-template-columns: 1fr; gap: 20px; }
  .sind-cases-list { position: static; max-height: none; overflow: visible; }
}
@media (max-width: 640px) {
  .sind-cases-tabs { gap: 8px; }
  .sind-cases-tabs .sind-tab-btn { padding: 9px 13px; font-size: 13px; }
  .sind-cases-detail__bar { justify-content: flex-start; }
}