/* ─────────────────────────────────────────────────────────────────
   Case Study Shared + Variation Styles
   V1: Editorial  |  V2: Immersive
──────────────────────────────────────────────────────────────────── */

/* ── Shared ──────────────────────────────────────────────────────── */

.cs-tag {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--muted-fg);
}

.cs-tags { display: flex; flex-wrap: wrap; gap: 0.5rem; }

.cs-full-bleed {
  width: 100%;
  aspect-ratio: 16/9;
  background: var(--surface);
  overflow: hidden;
}
.cs-full-bleed iframe,
.cs-full-bleed img {
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
  border: none;
}

.cs-related-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}
@media (min-width: 768px) { .cs-related-grid { grid-template-columns: repeat(2, 1fr); } }

.cs-related-card {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  text-decoration: none;
  color: inherit;
}
.cs-related-thumb {
  aspect-ratio: 16/9;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--surface);
}
.cs-related-thumb img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform 0.4s ease; }
.cs-related-card:hover .cs-related-thumb img { transform: scale(1.04); }
.cs-related-card .eyebrow { display: block; margin-bottom: 0.25rem; }
.cs-related-card h3 { font-size: 1.125rem; font-family: var(--font-display); font-weight: 700; }

/* ── V1: Editorial ───────────────────────────────────────────────── */

.cs-v1-hero {
  padding: 7rem 0 5rem;
  border-bottom: 1px solid var(--border);
}
.cs-v1-hero .eyebrow { margin-bottom: 1.5rem; }
.cs-v1-hero-client {
  font-family: var(--font-display);
  font-size: clamp(3rem, 8vw, 7rem);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}
.cs-v1-hero-title {
  font-size: clamp(1.125rem, 2.5vw, 1.5rem);
  font-weight: 400;
  color: var(--muted-fg);
  max-width: 52rem;
  margin-bottom: 2rem;
  line-height: 1.5;
}
.cs-v1-meta-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  padding: 2rem 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.cs-v1-meta-item {}
.cs-v1-meta-label {
  display: block;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--muted-fg);
  margin-bottom: 0.35rem;
}
.cs-v1-meta-value {
  font-size: 0.9rem;
  font-weight: 500;
}

.cs-v1-content { padding: 5rem 0; }

.cs-v1-block {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  padding: 4rem 0;
  border-top: 1px solid var(--border);
}
@media (min-width: 1024px) {
  .cs-v1-block { grid-template-columns: 260px 1fr; gap: 5rem; }
}

.cs-v1-block-label {}
.cs-v1-num {
  display: block;
  font-family: var(--font-display);
  font-size: 4rem;
  font-weight: 800;
  line-height: 1;
  color: var(--primary);
  margin-bottom: 0.75rem;
}
.cs-v1-block-label h3 {
  font-size: 1.375rem;
  font-family: var(--font-display);
  font-weight: 700;
}

.cs-v1-block-body {}
.cs-v1-block-body p {
  font-size: 1.0625rem;
  line-height: 1.8;
  color: rgba(255,255,255,0.8);
  margin-bottom: 1.25rem;
}

.cs-v1-pull-quote {
  margin: 2.5rem 0;
  padding-left: 1.5rem;
  border-left: 3px solid var(--primary);
}
.cs-v1-pull-quote blockquote {
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 2.5vw, 1.75rem);
  font-weight: 700;
  line-height: 1.4;
  font-style: italic;
}

.cs-v1-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 2.5rem;
  margin: 2rem 0;
}
.cs-v1-stat-num {
  display: block;
  font-family: var(--font-display);
  font-size: 2.75rem;
  font-weight: 800;
  color: var(--primary);
  line-height: 1;
}
.cs-v1-stat-label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--muted-fg);
  margin-top: 0.35rem;
}

.cs-v1-gallery {
  padding: 0 0 5rem;
}
.cs-v1-gallery-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}
@media (min-width: 768px) { .cs-v1-gallery-grid { grid-template-columns: repeat(2, 1fr); } }

.cs-v1-gallery-item {
  aspect-ratio: 16/9;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--surface);
}
.cs-v1-gallery-item img { width: 100%; height: 100%; object-fit: cover; display: block; }

/* ── V2: Immersive ───────────────────────────────────────────────── */

.cs-v2-hero {
  position: relative;
  height: 100vh;
  min-height: 600px;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
}
.cs-v2-hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
}
.cs-v2-hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.9) 30%, rgba(0,0,0,0.3) 100%);
}
.cs-v2-hero-content {
  position: relative;
  z-index: 2;
  width: 100%;
  padding: 4rem 0 5rem;
}
.cs-v2-hero-content .eyebrow { margin-bottom: 1rem; }
.cs-v2-hero-client {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  color: rgba(255,255,255,0.5);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-bottom: 0.75rem;
}
.cs-v2-hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 6vw, 5.5rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.02em;
  max-width: 18ch;
}
.cs-v2-scroll-hint {
  position: absolute;
  bottom: 2rem;
  right: 2rem;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: rgba(255,255,255,0.4);
}
.cs-v2-scroll-hint::after {
  content: '';
  display: block;
  width: 1px;
  height: 3rem;
  background: rgba(255,255,255,0.2);
}

.cs-v2-split {
  padding: 6rem 0;
}
.cs-v2-split-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  align-items: center;
}
@media (min-width: 1024px) {
  .cs-v2-split-grid { grid-template-columns: repeat(2, 1fr); gap: 6rem; }
  .cs-v2-split-grid.reverse { direction: rtl; }
  .cs-v2-split-grid.reverse > * { direction: ltr; }
}
.cs-v2-split-text h2 {
  font-size: clamp(1.75rem, 3.5vw, 2.75rem);
  margin: 1rem 0;
}
.cs-v2-split-text p {
  font-size: 1.0625rem;
  line-height: 1.8;
  color: rgba(255,255,255,0.75);
}
.cs-v2-split-media {
  aspect-ratio: 4/3;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--surface);
}
.cs-v2-split-media img,
.cs-v2-split-media video {
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
}

.cs-v2-quote {
  padding: 5rem 0;
  background: var(--surface);
  text-align: center;
}
.cs-v2-blockquote {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 4vw, 3rem);
  font-weight: 700;
  font-style: italic;
  line-height: 1.3;
  max-width: 900px;
  margin: 0 auto;
  color: #fff;
}
.cs-v2-blockquote::before { content: '\201C'; color: var(--primary); }
.cs-v2-blockquote::after  { content: '\201D'; color: var(--primary); }

.cs-v2-stats-band {
  padding: 5rem 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.cs-v2-stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}
@media (min-width: 768px) { .cs-v2-stats-grid { grid-template-columns: repeat(3, 1fr); } }

.cs-v2-stat {
  text-align: center;
  padding: 2rem;
}
.cs-v2-stat-num {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(3rem, 7vw, 6rem);
  font-weight: 800;
  line-height: 1;
  color: var(--primary);
}
.cs-v2-stat-label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--muted-fg);
  margin-top: 0.75rem;
}
.cs-v2-stat-desc {
  display: block;
  font-size: 0.875rem;
  color: rgba(255,255,255,0.5);
  margin-top: 0.35rem;
}

.cs-v2-gallery {
  padding: 4rem 0 6rem;
}
.cs-v2-gallery-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: auto auto;
  gap: 1rem;
}
.cs-v2-gallery-item {
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--surface);
}
.cs-v2-gallery-item img { width: 100%; height: 100%; object-fit: cover; display: block; }
.cs-v2-gallery-item:first-child {
  grid-column: 1 / -1;
  aspect-ratio: 21/9;
}
.cs-v2-gallery-item:not(:first-child) { aspect-ratio: 16/9; }

.cs-v2-related { padding: 5rem 0; background: var(--surface); }
.cs-v2-related-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 3rem;
}