/* ============================================================
   CASE STUDY PAGE STYLES
   ============================================================ */

.cs-main { padding-top: 80px; }

/* ---------- HERO ---------- */
.cs-hero {
  padding: clamp(60px, 8vw, 100px) 0 clamp(40px, 5vw, 60px);
  background: var(--bg-2);
  border-bottom: 1px solid var(--border);
}

.cs-hero__back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 28px;
  transition: color var(--transition);
}
.cs-hero__back:hover { color: var(--accent); }

.cs-hero__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}

.cs-hero__title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 16px;
  max-width: 800px;
}

.cs-hero__subtitle {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 650px;
  line-height: 1.75;
  margin-bottom: 32px;
}

.cs-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
}

.cs-meta-item { display: flex; flex-direction: column; gap: 4px; }
.cs-meta-item strong { font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--text-muted); }
.cs-meta-item span { font-size: 0.9rem; font-weight: 600; color: var(--text); }

/* ---------- BODY LAYOUT ---------- */
.cs-body {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 48px;
  padding: clamp(48px, 6vw, 80px) 0;
  align-items: start;
}

@media (max-width: 900px) {
  .cs-body { grid-template-columns: 1fr; }
  .cs-sidebar { order: -1; }
}

/* ---------- CONTENT ---------- */
.cs-content { display: flex; flex-direction: column; gap: 48px; }

.cs-section {}
.cs-section h2 {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 800;
  margin-bottom: 16px;
  color: var(--text);
}
.cs-section p {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 12px;
}

/* Feature list */
.cs-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 8px;
}
@media (max-width: 600px) { .cs-features { grid-template-columns: 1fr; } }

.cs-feature-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  transition: all var(--transition);
}
.cs-feature-item:hover { border-color: var(--border-hover); }

.cs-feature-item__icon {
  font-size: 1.2rem;
  flex-shrink: 0;
  margin-top: 2px;
}
.cs-feature-item strong { display: block; font-size: 0.88rem; font-weight: 700; margin-bottom: 4px; }
.cs-feature-item p { font-size: 0.8rem; color: var(--text-muted); line-height: 1.5; margin: 0; }

/* Results / metrics */
.cs-results {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 8px;
}
@media (max-width: 500px) { .cs-results { grid-template-columns: 1fr 1fr; } }

.cs-result-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  text-align: center;
}

.cs-result-card__value {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 6px;
  display: block;
}

.cs-result-card__label {
  font-size: 0.78rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* Tech stack pills */
.cs-tech-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 8px;
}

.cs-tech-pill {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text);
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 7px 16px;
  border-radius: var(--radius);
  transition: all var(--transition);
}
.cs-tech-pill:hover { border-color: var(--accent); color: var(--accent); }

/* ---------- SIDEBAR ---------- */
.cs-sidebar { display: flex; flex-direction: column; gap: 20px; }

.cs-sidebar-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
}

.cs-sidebar-card h3 {
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.cs-sidebar-list { display: flex; flex-direction: column; gap: 10px; }
.cs-sidebar-list li {
  font-size: 0.88rem;
  color: var(--text-muted);
  padding-left: 16px;
  position: relative;
}
.cs-sidebar-list li::before { content: '→'; position: absolute; left: 0; color: var(--accent); }

.cs-sidebar-card .btn { width: 100%; justify-content: center; margin-top: 4px; }

/* ---------- CTA SECTION ---------- */
.cs-cta { background: var(--bg-2); }

.cs-cta__inner {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  border-radius: 24px;
  padding: clamp(40px, 5vw, 64px);
  text-align: center;
}

.cs-cta__inner h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 800;
  color: #fff;
  margin-bottom: 12px;
}

.cs-cta__inner p {
  font-size: 1rem;
  color: rgba(255,255,255,0.8);
  margin-bottom: 28px;
}

.cs-cta__actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

.cs-cta__actions .btn--ghost {
  border-color: rgba(255,255,255,0.4);
  color: #fff;
}
.cs-cta__actions .btn--ghost:hover {
  background: rgba(255,255,255,0.15);
  border-color: #fff;
  color: #fff;
}

/* ---------- ALL CASE STUDIES LISTING ---------- */
.cs-listing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

@media (max-width: 1024px) { .cs-listing-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px)  { .cs-listing-grid { grid-template-columns: 1fr; } }

.cs-listing-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}

.cs-listing-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
  box-shadow: 0 16px 48px var(--accent-glow);
}

.cs-listing-card__top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.cs-listing-card__emoji {
  font-size: 2rem;
  line-height: 1;
  flex-shrink: 0;
}

.cs-listing-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  justify-content: flex-end;
}

.cs-listing-card__title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--text);
  line-height: 1.3;
  margin: 0;
}

.cs-listing-card__subtitle {
  font-size: 0.86rem;
  color: var(--text-muted);
  line-height: 1.65;
  margin: 0;
  flex: 1;
}

.cs-listing-card__results {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.cs-listing-result {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 0.82rem;
  color: var(--text-muted);
}

.cs-listing-result__check {
  color: var(--accent);
  font-weight: 700;
  flex-shrink: 0;
}

.cs-listing-card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-top: 14px;
  border-top: 1px solid var(--border);
  margin-top: auto;
}

.cs-listing-meta {
  font-size: 0.78rem;
  color: var(--text-subtle);
  display: flex;
  align-items: center;
  gap: 6px;
}

.cs-listing-meta__sep { opacity: 0.4; }

.cs-listing-link {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent);
  transition: gap var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  white-space: nowrap;
}

.cs-listing-link:hover { gap: 10px; }

/* Mockup display in case study */
.cs-mockup-showcase {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: 40px;
  height: 300px;
  display: flex;
  align-items: center;
  justify-content: center;
}