/* ─── Case Study Shared Styles ───────────────────────────── */
/* Inherits all variables from styles.css — load both */

.cs-hero {
  min-height: 80vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  position: relative;
  overflow: hidden;
  padding-top: 80px;
}

.cs-hero-left {
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 80px 60px 80px;
  position: relative;
  z-index: 2;
}

.cs-back {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: 'DM Mono', monospace;
  font-size: 9px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-dim);
  text-decoration: none;
  margin-bottom: 60px;
  transition: color 0.2s, gap 0.2s;
}
.cs-back:hover { color: var(--gold); gap: 14px; }
.cs-back::before { content: '←'; font-size: 12px; }

.cs-category {
  font-family: 'DM Mono', monospace;
  font-size: 9px;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.cs-category::before {
  content: '';
  width: 24px;
  height: 1px;
  background: var(--gold);
  display: block;
}

.cs-title {
  font-family: 'Cormorant Garamond', serif;
  font-size: clamp(40px, 5vw, 72px);
  font-weight: 300;
  line-height: 1.05;
  color: var(--white);
  margin-bottom: 32px;
}
.cs-title em { font-style: italic; color: var(--gold); }

.cs-subtitle {
  font-size: 14px;
  color: var(--text-mid);
  line-height: 1.8;
  max-width: 460px;
  border-left: 1px solid var(--border-warm);
  padding-left: 24px;
}

.cs-hero-right {
  position: relative;
  overflow: hidden;
  background: var(--bg2);
}
.cs-hero-right::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 30% 50%, rgba(196,160,96,0.07) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 20%, rgba(80,100,180,0.05) 0%, transparent 50%);
}

.cs-hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 60px 60px;
  opacity: 0.4;
  mask-image: radial-gradient(ellipse at center, black 0%, transparent 70%);
}

/* Meta bar */
.cs-meta {
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 28px 60px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
}
.cs-meta-item {
  padding: 0 32px;
  border-right: 1px solid var(--border);
}
.cs-meta-item:first-child { padding-left: 0; }
.cs-meta-item:last-child { border-right: none; }
.cs-meta-label {
  font-family: 'DM Mono', monospace;
  font-size: 8px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 6px;
}
.cs-meta-value {
  font-size: 13px;
  color: var(--text);
}

/* Content sections */
.cs-body {
  max-width: 1200px;
  margin: 0 auto;
  padding: 100px 60px;
}

.cs-section {
  margin-bottom: 80px;
}

.cs-section-label {
  font-family: 'DM Mono', monospace;
  font-size: 9px;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 32px;
  display: flex;
  align-items: center;
  gap: 16px;
}
.cs-section-label::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

.cs-section-title {
  font-family: 'Cormorant Garamond', serif;
  font-size: 32px;
  font-weight: 300;
  color: var(--white);
  margin-bottom: 24px;
  line-height: 1.2;
}
.cs-section-title em { font-style: italic; color: var(--gold); }

.cs-context-text {
  font-size: 15px;
  color: var(--text-mid);
  line-height: 1.9;
  max-width: 760px;
}

/* Two-column grid for Challenge / Complexity */
.cs-two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--border);
  margin-top: 40px;
}

.cs-col-block {
  background: var(--bg2);
  padding: 48px 40px;
}

.cs-col-title {
  font-family: 'DM Mono', monospace;
  font-size: 9px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 32px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border-warm);
}

.cs-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.cs-list li {
  font-size: 13px;
  color: var(--text-mid);
  line-height: 1.75;
  padding-left: 20px;
  position: relative;
}
.cs-list li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--gold);
  opacity: 0.5;
}

/* Intervention items */
.cs-interventions {
  display: flex;
  flex-direction: column;
  gap: 1px;
  background: var(--border);
  margin-top: 40px;
}

.cs-intervention-item {
  background: var(--bg);
  padding: 28px 40px;
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: 24px;
  align-items: start;
  transition: background 0.2s;
}
.cs-intervention-item:hover { background: var(--bg2); }

.cs-intervention-num {
  font-family: 'DM Mono', monospace;
  font-size: 9px;
  letter-spacing: 0.15em;
  color: var(--text-dim);
  padding-top: 3px;
}

.cs-intervention-text {
  font-size: 13px;
  color: var(--text-mid);
  line-height: 1.75;
}

/* Outcome block */
.cs-outcome {
  background: var(--bg2);
  border: 1px solid var(--border-warm);
  padding: 56px;
  margin-top: 40px;
  position: relative;
  overflow: hidden;
}
.cs-outcome::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, var(--gold), transparent);
}

.cs-outcome-text {
  font-family: 'Cormorant Garamond', serif;
  font-size: 22px;
  font-weight: 300;
  color: var(--white);
  line-height: 1.6;
  max-width: 800px;
}
.cs-outcome-text em { font-style: italic; color: var(--gold); }

/* Next case study nav */
.cs-nav-bottom {
  border-top: 1px solid var(--border);
  padding: 60px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.cs-nav-back {
  font-family: 'DM Mono', monospace;
  font-size: 9px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-dim);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 12px;
  transition: color 0.2s;
}
.cs-nav-back:hover { color: var(--gold); }
.cs-nav-back::before { content: '←'; }

.cs-nav-next {
  text-align: right;
  text-decoration: none;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 6px;
  transition: opacity 0.2s;
}
.cs-nav-next:hover { opacity: 0.7; }
.cs-nav-next-label {
  font-family: 'DM Mono', monospace;
  font-size: 9px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-dim);
}
.cs-nav-next-title {
  font-family: 'Cormorant Garamond', serif;
  font-size: 20px;
  font-weight: 300;
  color: var(--white);
  display: flex;
  align-items: center;
  gap: 12px;
}
.cs-nav-next-title::after { content: '→'; color: var(--gold); font-size: 16px; }

/* Responsive */
@media (max-width: 1024px) {
  .cs-hero { grid-template-columns: 1fr; min-height: auto; }
  .cs-hero-left { padding: 80px 32px 60px; }
  .cs-hero-right { display: none; }
  .cs-meta { padding: 24px 32px; grid-template-columns: repeat(2, 1fr); }
  .cs-meta-item { padding: 16px 0; border-right: none; border-bottom: 1px solid var(--border); }
  .cs-body { padding: 60px 32px; }
  .cs-two-col { grid-template-columns: 1fr; }
  .cs-outcome { padding: 40px 32px; }
  .cs-nav-bottom { padding: 40px 32px; flex-direction: column; gap: 32px; align-items: flex-start; }
}