/* ===================================================================
   CASE STUDY TEMPLATE
   Reads like a spec: labeled fields, not a slideshow.
   =================================================================== */

.case-header {
  padding: clamp(48px, 8vw, 88px) 0 clamp(40px, 6vw, 64px);
  border-bottom: 1px solid var(--line);
}

/* ---- Case hero banner image ---- */
.case-hero-banner {
  width: 100%;
  height: clamp(220px, 38vw, 460px);
  overflow: hidden;
  margin-bottom: clamp(40px, 6vw, 64px);
}
.case-hero-banner img {
  width: 100%;
  height: 120%;
  object-fit: cover;
  display: block;
  will-change: transform;
}
.case-back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--slate);
  margin-bottom: 32px;
}
.case-back:hover { color: var(--clay); }

.case-title-row {
  display: grid;
  grid-template-columns: 1.6fr 1fr;
  gap: clamp(32px, 5vw, 64px);
  align-items: start;
}
.case-title-row h1 { font-size: clamp(2.2rem, 5vw, 3.4rem); margin-bottom: 14px; }

/* Spec sheet — the signature element, present on every case study */
.spec-sheet {
  border: 1px solid var(--line);
  background: var(--paper-dim);
}
.spec-row {
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: 16px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--line);
  font-size: 0.92rem;
}
.spec-row:last-child { border-bottom: none; }
.spec-row dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--slate-dim);
  margin: 0;
  padding-top: 2px;
}
.spec-row dd { margin: 0; color: var(--ink); line-height: 1.45; }

@media (max-width: 860px) {
  .case-title-row { grid-template-columns: 1fr; }
}

/* ---- Body sections ---- */
.case-section {
  padding: clamp(48px, 7vw, 80px) 0;
  border-bottom: 1px solid var(--line);
}
.case-section:last-of-type { border-bottom: none; }
.case-section-inner {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: clamp(28px, 5vw, 64px);
}
.case-section-label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--clay);
  padding-top: 6px;
}
.case-section-body h2 { margin-bottom: 18px; font-size: clamp(1.5rem, 2.6vw, 2rem); }
.case-section-body p { max-width: 680px; }
.case-section-body p + h2,
.case-section-body p + h3 { margin-top: 1.6em; }

@media (max-width: 760px) {
  .case-section-inner { grid-template-columns: 1fr; }
  .case-section-label { padding-top: 0; }
}

/* ---- Numbered challenge list ---- */
.challenge-list { margin: 0; padding: 0; list-style: none; }
.challenge-list li {
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: 16px;
  padding: 18px 0;
  border-top: 1px solid var(--line);
}
.challenge-list li:first-child { border-top: none; }
.challenge-num {
  font-family: var(--font-mono);
  color: var(--slate-dim);
  font-size: 0.95rem;
}
.challenge-list p { margin: 0; color: var(--ink); }

/* ---- Image frame ---- */
.case-figure {
  margin: 32px 0;
  border: 1px solid var(--line);
  background: #fff;
}
.case-figure img { width: 100%; display: block; }
.case-figure figcaption {
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--slate-dim);
  padding: 12px 16px;
  border-top: 1px solid var(--line);
  letter-spacing: 0.02em;
}
.figure-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
@media (max-width: 700px) { .figure-grid { grid-template-columns: 1fr; } }

/* ---- Metrics row: real text, not a screenshot ---- */
.metrics-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  margin-top: 28px;
}
.metric-cell {
  background: var(--paper);
  padding: 22px 20px;
}
.metric-num {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 500;
  color: var(--clay);
  line-height: 1;
  margin-bottom: 8px;
}
.metric-label {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--slate);
}

/* ---- Decision list ---- */
.decision-list { margin: 0; padding: 0; list-style: none; }
.decision-list li {
  padding: 20px 0;
  border-top: 1px solid var(--line);
}
.decision-list li:first-child { border-top: none; }
.decision-list h4 {
  font-family: var(--font-body);
  font-size: 1.02rem;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--ink);
}
.decision-list p { margin: 0; font-size: 0.95rem; }

/* ---- Pull quote ---- */
blockquote {
  margin: 36px 0;
  padding-left: 24px;
  border-left: 2px solid var(--clay);
  font-family: var(--font-display);
  font-size: clamp(1.2rem, 2vw, 1.5rem);
  line-height: 1.4;
  color: var(--ink);
  font-weight: 400;
}

/* ---- Next case ---- */
.case-next {
  background: var(--ink);
  color: var(--paper);
  padding: clamp(48px, 7vw, 80px) 0;
}
.case-next .wrap {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}
.case-next-label { color: var(--clay-dim); margin-bottom: 10px; }
.case-next h2 { color: var(--paper); font-size: clamp(1.6rem, 3vw, 2.2rem); }
.case-next a.btn.primary { background: var(--clay); border-color: var(--clay); }
.case-next a.btn.primary:hover { background: var(--clay-deep); border-color: var(--clay-deep); }