:root {
  --case-surface: #fffaf8;
  --case-surface-2: #f7f2ee;
  --case-border: rgba(18, 18, 18, 0.08);
  --case-shadow: 0 24px 60px rgba(19, 14, 14, 0.08);
  --case-shadow-lg: 0 32px 80px rgba(19, 14, 14, 0.12);
}

body.case-study-page,
body.case-study-index {
  background:
    radial-gradient(circle at top left, rgba(229, 57, 53, 0.06), transparent 36%),
    linear-gradient(180deg, #fffdfc 0%, #fff7f3 100%);
}

.case-shell {
  padding-top: calc(var(--header-height) + 2rem);
}

.case-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.case-hero {
  padding: 2.5rem 0 4rem;
}

.case-hero-panel {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(360px, 0.85fr);
  gap: 2rem;
  align-items: stretch;
  padding: 2rem;
  background: rgba(255, 255, 255, 0.86);
  border: 1px solid rgba(255, 255, 255, 0.72);
  border-radius: 32px;
  box-shadow: var(--case-shadow);
  backdrop-filter: blur(18px);
}

.case-hero-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 1.25rem;
}

.case-kicker {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  width: fit-content;
  padding: 0.55rem 0.95rem;
  border-radius: 999px;
  background: rgba(229, 57, 53, 0.08);
  border: 1px solid rgba(229, 57, 53, 0.12);
  color: var(--primary);
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.case-brand-lockup {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 1rem;
  isolation: isolate;
}

.case-brand-watermark {
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 88px;
  height: 88px;
  object-fit: contain;
  opacity: 0.12;
  z-index: -1;
  filter: grayscale(1) contrast(1.1);
}

.case-brand-logo {
  width: 64px;
  height: 64px;
  object-fit: contain;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.82);
  padding: 0.75rem;
  border: 1px solid rgba(18, 18, 18, 0.06);
  box-shadow: 0 16px 36px rgba(19, 14, 14, 0.08);
}

.case-brand-name {
  font-size: clamp(2.3rem, 4vw, 3.75rem);
  line-height: 0.98;
  letter-spacing: -0.04em;
  margin: 0;
}

.case-headline {
  font-size: clamp(1.45rem, 2.4vw, 2.3rem);
  line-height: 1.08;
  letter-spacing: -0.03em;
  margin: 0;
}

.case-subtext {
  margin: 0;
  font-size: 1.05rem;
  color: var(--gray-700);
  max-width: 58ch;
}

.case-story-block {
  max-width: 56ch;
  padding: 1rem 1.05rem;
  border-left: 3px solid rgba(229, 57, 53, 0.24);
  border-radius: 18px;
  background: rgba(18, 18, 18, 0.03);
}

.case-story-block p {
  margin: 0;
  color: var(--gray-700);
}

.case-hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.case-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.55rem 0.9rem;
  border-radius: 999px;
  background: rgba(18, 18, 18, 0.04);
  color: var(--gray-700);
  font-size: 0.85rem;
  font-weight: 600;
}

.case-hero-art {
  position: relative;
  min-height: 430px;
  border-radius: 28px;
  overflow: hidden;
  background:
    radial-gradient(circle at top left, rgba(255, 138, 29, 0.26), transparent 32%),
    linear-gradient(145deg, #180f0f 0%, #2a1412 48%, #120d0d 100%);
}

.case-hero-art::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(18, 12, 12, 0.04) 0%, rgba(18, 12, 12, 0.3) 100%),
    linear-gradient(135deg, rgba(229, 57, 53, 0.08) 0%, rgba(255, 138, 29, 0.08) 100%);
  pointer-events: none;
}

.case-hero-art--product {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.1rem;
}

.case-product-stage {
  position: absolute;
  inset: 1.1rem 1.1rem 6.8rem;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.35rem;
  border-radius: 24px;
  background:
    linear-gradient(180deg, rgba(255,255,255,0.16) 0%, rgba(255,255,255,0.06) 100%),
    rgba(255,255,255,0.05);
  border: 1px solid rgba(255, 255, 255, 0.14);
  box-shadow: 0 22px 52px rgba(0, 0, 0, 0.18);
  backdrop-filter: blur(14px);
  z-index: 1;
}

.case-product-stage--shelf {
  padding: 0;
  overflow: hidden;
}

.case-product-stage--shelf img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.case-product-image {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
  filter: drop-shadow(0 18px 30px rgba(0, 0, 0, 0.24));
}

.case-hero-collage {
  position: absolute;
  inset: 1.1rem 1.1rem 6.8rem;
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  grid-template-rows: minmax(0, 1fr) minmax(0, 1fr);
  gap: 0.95rem;
  z-index: 1;
}

.case-hero-tile {
  position: relative;
  margin: 0;
  overflow: hidden;
  border-radius: 24px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: 0 22px 52px rgba(0, 0, 0, 0.18);
}

.case-hero-tile img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.case-hero-tile::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(16, 10, 10, 0.02) 0%, rgba(16, 10, 10, 0.28) 100%);
}

.case-hero-tile--tall {
  grid-row: 1 / span 2;
}

.case-hero-tile--top {
  transform: translateY(0.6rem);
}

.case-hero-tile--bottom {
  transform: translateX(1.1rem);
}

.case-hero-note {
  position: absolute;
  left: 1.1rem;
  right: 1.1rem;
  bottom: 1.1rem;
  padding: 1rem 1.05rem;
  border-radius: 18px;
  background: rgba(18, 12, 12, 0.68);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(14px);
  z-index: 1;
  line-height: 1.55;
}

.case-hero-note strong {
  display: block;
  margin-bottom: 0.25rem;
  color: #ffffff;
}

.case-sections {
  padding-bottom: 4.5rem;
}

.case-section {
  padding: 1.25rem 0 2rem;
}

.case-section + .case-section {
  border-top: 1px solid rgba(18, 18, 18, 0.06);
}

.case-section-grid {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: 1.5rem;
  align-items: start;
}

.case-section-label {
  position: sticky;
  top: calc(var(--header-height) + 1.5rem);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  width: fit-content;
  padding: 0.6rem 0.95rem;
  border-radius: 999px;
  background: rgba(229, 57, 53, 0.08);
  border: 1px solid rgba(229, 57, 53, 0.12);
  color: var(--primary);
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.case-card {
  padding: 1.75rem;
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(255, 255, 255, 0.7);
  border-radius: 28px;
  box-shadow: var(--case-shadow);
}

.case-card h2,
.case-card h3 {
  margin: 0 0 0.9rem;
}

.case-card p {
  color: var(--gray-700);
  margin: 0;
  font-size: 1rem;
}

.case-richtext {
  display: grid;
  gap: 1rem;
}

.case-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
}

.case-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.case-list-card {
  padding: 1.15rem;
  border-radius: 20px;
  background: linear-gradient(180deg, #fff 0%, #fff7f2 100%);
  border: 1px solid rgba(18, 18, 18, 0.06);
}

.case-list-card h4 {
  margin-bottom: 0.45rem;
  font-size: 1rem;
}

.case-results {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.case-metric {
  padding: 1.5rem;
  border-radius: 22px;
  background: linear-gradient(180deg, rgba(255,255,255,0.98) 0%, #fff8f4 100%);
  border: 1px solid rgba(18, 18, 18, 0.06);
  box-shadow: 0 18px 36px rgba(19, 14, 14, 0.08);
}

.case-metric-label {
  display: block;
  margin-bottom: 0.6rem;
  color: var(--gray-600);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.case-metric-value {
  display: block;
  color: var(--dark);
  font-size: clamp(1.4rem, 2vw, 2rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 0.35rem;
}

.case-metric-note {
  color: var(--gray-600);
  font-size: 0.92rem;
  line-height: 1.65;
}

.case-cta {
  padding: 3rem 0 5rem;
}

.case-cta-panel {
  padding: 2rem;
  border-radius: 30px;
  background:
    linear-gradient(135deg, rgba(13, 13, 13, 0.95) 0%, rgba(41, 15, 15, 0.95) 100%);
  color: white;
  box-shadow: var(--case-shadow-lg);
}

.case-cta-panel h2 {
  color: white;
  margin-bottom: 0.8rem;
}

.case-cta-panel p {
  color: rgba(255, 255, 255, 0.76);
  max-width: 58ch;
  margin-bottom: 1.4rem;
}

.case-cta-panel .btn-secondary {
  background: linear-gradient(135deg, #ff8a1d 0%, #ff6b35 100%);
  color: white;
  border: none;
}

.case-index-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.25rem;
  padding-bottom: 4.5rem;
}

.case-index-card {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  min-height: 320px;
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(255, 255, 255, 0.72);
  border-radius: 28px;
  overflow: hidden;
  box-shadow: var(--case-shadow);
  transition: transform 0.35s ease, box-shadow 0.35s ease;
}

.case-index-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--case-shadow-lg);
}

.case-index-visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  background:
    radial-gradient(circle at top left, rgba(255, 138, 29, 0.18), transparent 34%),
    linear-gradient(145deg, #1d1212 0%, #2c1412 46%, #120d0d 100%);
}

.case-index-visual img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
  padding: 1.4rem;
  position: relative;
  z-index: 1;
  filter: drop-shadow(0 20px 28px rgba(0, 0, 0, 0.22));
}

.case-index-visual::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(18, 12, 12, 0.04) 0%, rgba(18, 12, 12, 0.45) 100%),
    radial-gradient(circle at top right, rgba(255,255,255,0.1), transparent 32%);
}

.case-index-content {
  padding: 1.55rem;
  display: flex;
  flex-direction: column;
  gap: 0.95rem;
}

.case-index-logo {
  width: 64px;
  height: 64px;
  padding: 0.7rem;
  object-fit: contain;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(18, 18, 18, 0.06);
}

.case-index-content h2 {
  font-size: 1.5rem;
  margin: 0;
}

.case-index-content p {
  font-size: 0.96rem;
  color: var(--gray-700);
  margin: 0;
}

.case-index-metrics {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}

.case-index-metrics span {
  display: inline-flex;
  padding: 0.45rem 0.72rem;
  border-radius: 999px;
  background: rgba(18, 18, 18, 0.04);
  color: var(--gray-700);
  font-size: 0.8rem;
  font-weight: 600;
}

.case-footer {
  border-top: 1px solid rgba(18, 18, 18, 0.06);
  padding: 2rem 0 3rem;
}

.case-footer__inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  color: var(--gray-600);
}

.case-footer__links {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

@media (max-width: 1100px) {
  .case-hero-panel,
  .case-index-card {
    grid-template-columns: 1fr;
  }

  .case-hero-art {
    min-height: 340px;
  }
}

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

  .case-section-label {
    position: static;
  }

  .case-list,
  .case-results,
  .case-index-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .case-shell {
    padding-top: calc(var(--header-height) + 1rem);
  }

  .case-container,
  .case-footer__inner {
    padding: 0 1rem;
  }

  .case-hero {
    padding: 1.5rem 0 2.8rem;
  }

  .case-hero-panel,
  .case-card,
  .case-cta-panel,
  .case-index-content {
    padding: 1.35rem;
  }

  .case-hero-art {
    min-height: 300px;
  }

  .case-hero-collage {
    inset: 0.85rem 0.85rem 7.1rem;
    gap: 0.7rem;
  }

  .case-product-stage {
    inset: 0.85rem 0.85rem 7.1rem;
  }

  .case-hero-tile {
    border-radius: 20px;
  }

  .case-hero-tile--top {
    transform: none;
  }

  .case-hero-tile--bottom {
    transform: translateX(0.4rem);
  }

  .case-brand-lockup {
    gap: 0.8rem;
  }

  .case-brand-logo {
    width: 54px;
    height: 54px;
  }

  .case-brand-watermark {
    width: 72px;
    height: 72px;
  }

  .case-headline {
    font-size: 1.4rem;
  }

  .case-subtext {
    font-size: 0.98rem;
  }

  .case-hero-note {
    left: 0.85rem;
    right: 0.85rem;
    bottom: 0.85rem;
    padding: 0.9rem 0.95rem;
    font-size: 0.92rem;
  }
}