/* ── THEME OVERRIDE (dark red) ── */
:root {
  --bg:        #1a0d0d;
  --surface:   #231212;
  --surface-2: #2e1515;
  --ink:       #f0e8e8;
  --mid:       #b89090;
  --accent:    #c0392b;
  --accent-lt: #3d1a1a;
  --rule:      #3a1f1f;
  --card-bg:   #2a1414;
}

body {
  background: var(--bg);
  color: var(--ink);
}

/* ── NAV ── */
.cs-nav {
  max-width: 860px;
  margin: 0 auto;
  padding: 2rem 2rem 0;
}
.back-link {
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--mid);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  transition: color 0.2s;
}
.back-link:hover { color: var(--ink); }

/* ── MAIN ── */
.case {
  max-width: 860px;
  margin: 0 auto;
  padding: 3rem 2rem 6rem;
}

/* ── HEADER ── */
.case-header {
  margin-bottom: 3rem;
  padding-bottom: 2.5rem;
  border-bottom: 1px solid var(--rule);
}
.case-eyebrow {
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 500;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}
.case-eyebrow::before {
  content: '';
  display: inline-block;
  width: 1.5rem;
  height: 1px;
  background: var(--accent);
}
.case-page-title {
  font-family: var(--serif);
  font-size: clamp(1.9rem, 4vw, 2.75rem);
  line-height: 1.15;
  letter-spacing: -0.01em;
  color: var(--ink);
  margin-bottom: 1.25rem;
}
.case-summary {
  font-size: 1.05rem;
  color: var(--mid);
  line-height: 1.75;
  max-width: 60ch;
  margin-bottom: 2rem;
}
.case-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--rule);
}
.meta-label {
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--mid);
  margin-bottom: 0.25rem;
}
.meta-value {
  font-size: 0.875rem;
  color: var(--ink);
  font-weight: 400;
}

/* ── IMPACT BAR ── */
.impact-bar {
  background: var(--accent);
  padding: 2rem 2.25rem;
  margin-bottom: 3.5rem;
}
.impact-bar-label {
  font-size: 0.65rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.7);
  font-weight: 500;
  margin-bottom: 1rem;
}
.impact-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}
.impact-list li {
  font-size: 0.9rem;
  line-height: 1.55;
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  color: #fff;
}
.impact-list li::before {
  content: '↳';
  color: rgba(255,255,255,0.6);
  flex-shrink: 0;
  margin-top: 0.05em;
}

/* ── SECTIONS ── */
.case-section { margin-bottom: 3.5rem; }

.case h2 {
  font-family: var(--serif);
  font-size: 1.5rem;
  font-weight: 400;
  color: var(--ink);
  margin-bottom: 1rem;
  line-height: 1.25;
}

.case p {
  font-size: 0.975rem;
  color: var(--mid);
  line-height: 1.75;
  margin-bottom: 1rem;
  max-width: 64ch;
}
.case p:last-child { margin-bottom: 0; }
.case p.wide { max-width: none; }

.case strong { color: var(--ink); font-weight: 500; }
.hl { color: var(--ink); font-weight: 500; }

/* ── RULE ── */
.rule {
  border: none;
  border-top: 1px solid var(--rule);
  margin: 3rem 0;
}

/* ── METHOD BLOCK ── */
.method-block {
  border: 1px solid var(--rule);
  background: var(--card-bg);
  padding: 1.25rem 1.5rem;
  margin: 1.25rem 0;
}
.method-block-label {
  font-size: 0.62rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--mid);
  opacity: 0.7;
  margin-bottom: 0.75rem;
  font-weight: 400;
}
.method-block p {
  font-size: 0.82rem;
  color: var(--mid);
  opacity: 0.85;
  margin: 0;
  max-width: none;
}

/* ── CALLOUT ── */
.callout {
  border-left: 3px solid var(--accent);
  padding: 1rem 1.5rem;
  background: var(--accent-lt);
  margin: 1.5rem 0;
}
.callout p {
  margin: 0;
  font-size: 0.9rem;
  font-style: italic;
  color: var(--ink);
  max-width: none;
}

/* ── PHASE LABEL ── */
.phase-label {
  display: inline-flex;
  align-items: center;
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--mid);
  margin-bottom: 1.25rem;
  padding: 0.3rem 0.75rem;
  border: 1px solid var(--rule);
  background: var(--card-bg);
}

/* ── BEFORE / AFTER ── */
.before-after {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin: 2rem 0;
}
.ba-block { display: flex; flex-direction: column; gap: 0.6rem; }
.ba-label {
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-weight: 500;
  padding: 0.3rem 0.6rem;
  display: inline-block;
  width: fit-content;
}
.ba-label.before { background: var(--rule); color: var(--mid); }
.ba-label.after  { background: var(--accent); color: #fff; }
.ba-block img {
  width: 100%;
  height: auto;
  display: block;
  border: 1px solid var(--rule);
}
.ba-caption {
  font-size: 0.75rem;
  color: var(--mid);
  font-style: italic;
  line-height: 1.5;
}

/* ── INSIGHT GRID ── */
.insight-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
  margin: 1.5rem 0;
}
.insight-card {
  background: var(--card-bg);
  padding: 1.5rem 1.75rem;
}
.insight-card.full { grid-column: 1 / -1; }
.insight-num {
  font-family: var(--serif);
  font-size: 1.75rem;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 0.5rem;
  opacity: 0.7;
}
.insight-title {
  font-size: 0.875rem;
  color: var(--ink);
  font-weight: 500;
  line-height: 1.4;
  margin-bottom: 0.5rem;
}
.insight-body {
  font-size: 0.78rem;
  color: var(--mid);
  line-height: 1.6;
  max-width: none;
  margin: 0;
}
.insight-action {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin-top: 0.85rem;
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--accent);
  letter-spacing: 0.03em;
}
.insight-action::before { content: '→ Fix: '; }

/* ── RISK ROW ── */
.risk-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
  margin: 1.5rem 0;
}
.risk-cell {
  background: var(--card-bg);
  padding: 1.25rem 1.5rem;
}
.risk-label {
  font-size: 0.62rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 500;
  margin-bottom: 0.5rem;
}
.risk-text {
  font-size: 0.85rem;
  color: var(--ink);
  line-height: 1.55;
  margin: 0;
  max-width: none;
}

/* ── WIREFRAME GRID ── */
.wf-set { margin-bottom: 2.5rem; }
.wf-label {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--ink);
  margin-bottom: 0.75rem;
  padding-left: 0.1rem;
}
.wf-sub {
  font-size: 0.72rem;
  color: var(--mid);
  margin-bottom: 1rem;
  padding-left: 0.1rem;
  max-width: 60ch;
}
.wf-row {
  display: grid;
  gap: 1rem;
}
.wf-row.cols-2 { grid-template-columns: 1fr 1fr; }
.wf-row.cols-4 { grid-template-columns: repeat(4, 1fr); }
.wf-row img {
  width: 100%;
  height: auto;
  display: block;
  border: 1px solid var(--rule);
}

/* ── STAT ROW ── */
.stat-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
  margin: 1.5rem 0;
}
.stat-cell {
  background: var(--card-bg);
  padding: 1.5rem 1.75rem;
  text-align: center;
}
.stat-big {
  font-family: var(--serif);
  font-size: 2rem;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 0.4rem;
}
.stat-desc {
  font-size: 0.78rem;
  color: var(--mid);
  line-height: 1.5;
}

/* ── OUTCOME LIST ── */
.outcome-row {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin: 1.25rem 0;
}
.outcome-item {
  display: flex;
  align-items: flex-start;
  gap: 0.85rem;
}
.outcome-arrow { color: var(--accent); flex-shrink: 0; margin-top: 0.15em; }
.outcome-text {
  font-size: 0.9rem;
  color: var(--ink);
  line-height: 1.55;
  margin: 0;
  max-width: none;
}
.outcome-sub {
  font-size: 0.78rem;
  color: var(--mid);
  margin: 0.2rem 0 0;
  max-width: none;
}

/* ── IMAGES ── */
.case-img {
  width: 100%;
  height: auto;
  display: block;
  margin: 2rem 0;
  border: 1px solid var(--rule);
}
.case-img-caption {
  font-size: 0.75rem;
  color: var(--mid);
  letter-spacing: 0.03em;
  margin-top: -1.5rem;
  margin-bottom: 2rem;
  font-style: italic;
}

/* ── FOOTER ── */
footer {
  text-align: center;
  padding: 2rem;
  font-size: 0.75rem;
  color: var(--mid);
  border-top: 1px solid var(--rule);
  max-width: 860px;
  margin: 0 auto;
}

@media (max-width: 640px) {
  .before-after,
  .insight-grid,
  .risk-row,
  .stat-row { grid-template-columns: 1fr; }
  .insight-card.full { grid-column: 1; }
  .wf-row.cols-2,
  .wf-row.cols-4 { grid-template-columns: 1fr 1fr; }
  .case-meta { gap: 1.25rem; }
}