.case-hero {
  padding: calc(160px * var(--space-scale)) var(--container-pad)
    calc(80px * var(--space-scale));
  position: relative;
}
.case-hero-bg {
  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: 0.2;
  mask-image: linear-gradient(to bottom, black 0%, transparent 100%);
}
.case-back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: 14px;
  text-decoration: none;
  margin-bottom: 48px;
  position: relative;
  z-index: 2;
  transition: color 0.2s;
}
.case-back:hover {
  color: var(--accent);
}
.case-meta {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 32px;
  position: relative;
  z-index: 2;
}
.case-tag {
  background: var(--accent-dim);
  border: 1px solid rgba(0, 255, 204, 0.2);
  color: var(--accent);
  padding: 6px 14px;
  border-radius: 100px;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.05em;
}
.case-title {
  font-family: var(--font-display);
  font-size: clamp(36px, 5vw, 62px);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.03em;
  max-width: 900px;
  position: relative;
  z-index: 2;
  margin-bottom: 32px;
}
.case-title em {
  color: var(--accent);
  font-style: italic;
}
.case-intro {
  color: var(--muted-light);
  font-size: 17px;
  font-weight: 300;
  line-height: 1.7;
  max-width: 680px;
  position: relative;
  z-index: 2;
}

/* Overview bar */
.case-overview {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  margin: calc(60px * var(--space-scale)) var(--container-pad) 0;
}
.case-overview-item {
  padding: 32px 40px;
  border-right: 1px solid var(--border);
}
.case-overview-item:last-child {
  border-right: none;
}
.coi-label {
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 10px;
}
.coi-val {
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 700;
  color: var(--white);
}

/* Main image */
.case-main-image {
  margin: calc(60px * var(--space-scale)) var(--container-pad);
  border-radius: 16px;
  border: 1px solid var(--border);
  overflow: hidden;
  aspect-ratio: 16/7;
  background: var(--surface);
  position: relative;
}
.case-main-image-inner {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}
.case-img-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 48px 48px;
  opacity: 0.5;
}
.case-img-glow {
  position: absolute;
  inset: 0;
  background: radial-gradient(
    circle at center,
    rgba(0, 255, 204, 0.08) 0%,
    transparent 60%
  );
}
.case-img-label {
  font-family: var(--font-display);
  font-size: 92px;
  font-weight: 800;
  color: rgba(240, 238, 234, 0.04);
  letter-spacing: -0.04em;
  position: relative;
  z-index: 2;
}
.case-img-note {
  position: absolute;
  bottom: 20px;
  right: 20px;
  background: rgba(8, 8, 8, 0.8);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 16px;
  font-size: 12px;
  color: var(--muted);
  backdrop-filter: blur(10px);
}

/* Content sections */
.case-content {
  padding: 0 var(--container-pad);
}
.case-section {
  max-width: 800px;
  margin: 0 auto 80px;
}
.case-section-label {
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.case-section-label::before {
  content: '';
  width: 24px;
  height: 1px;
  background: var(--accent);
}
.case-section h2 {
  font-family: var(--font-display);
  font-size: clamp(24px, 3.3vw, 32px);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
  line-height: 1.15;
}
.case-section h2 em {
  color: var(--accent);
  font-style: italic;
}
.case-section p {
  color: var(--muted-light);
  font-size: 17px;
  line-height: 1.8;
  font-weight: 300;
  margin-bottom: 20px;
}
.case-section p strong {
  color: var(--white);
  font-weight: 500;
}

/* Results grid */
.results-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
  margin-top: 40px;
}
.result-card {
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 32px 28px;
}
.result-card:first-child {
  border-radius: 12px 0 0 12px;
}
.result-card:last-child {
  border-radius: 0 12px 12px 0;
}
.result-num {
  font-family: var(--font-display);
  font-size: 40px;
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 8px;
}
.result-label {
  font-size: 14px;
  color: var(--muted);
  font-weight: 300;
  line-height: 1.5;
}

/* Tech stack used */
.tech-used {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 32px;
}

/* Image gallery */
.case-gallery {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin: 0 var(--container-pad) calc(80px * var(--space-scale));
}
.gallery-img {
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--surface);
  aspect-ratio: 4/3;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 48px;
  font-weight: 800;
  color: rgba(240, 238, 234, 0.06);
  position: relative;
  overflow: hidden;
}
.gallery-img-label {
  position: absolute;
  bottom: 16px;
  left: 16px;
  font-family: var(--font-body);
  font-size: 12px;
  color: var(--muted);
  font-weight: 300;
}

/* Next project */
.next-project {
  margin: 0 var(--container-pad) calc(80px * var(--space-scale));
  border-radius: 16px;
  border: 1px solid var(--border);
  background: var(--surface);
  overflow: hidden;
  padding: 60px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  text-decoration: none;
  cursor: pointer;
  transition: border-color 0.3s;
}
.next-project:hover {
  border-color: rgba(0, 255, 204, 0.3);
}
.np-label {
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 12px;
}
.np-title {
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 700;
  color: var(--white);
  letter-spacing: -0.02em;
}
.np-arrow {
  font-size: 40px;
  color: var(--muted);
  transition:
    color 0.3s,
    transform 0.3s;
}
.next-project:hover .np-arrow {
  color: var(--accent);
  transform: translateX(8px);
}

@media (max-width: 1024px) {
  .case-hero {
    padding-bottom: 64px;
  }
  .case-title {
    font-size: clamp(34px, 6vw, 54px);
  }
  .case-intro {
    max-width: 760px;
  }
  .case-overview {
    grid-template-columns: repeat(2, 1fr);
  }
  .case-overview-item:nth-child(2) {
    border-right: none;
  }
  .case-overview-item:nth-child(3) {
    border-right: 1px solid var(--border);
  }
  .case-gallery {
    grid-template-columns: repeat(2, 1fr);
  }
  .next-project {
    padding: 48px;
  }
}
@media (max-width: 768px) {
  .case-hero,
  .case-content {
    padding-left: var(--layout-gutter);
    padding-right: var(--layout-gutter);
  }
  .case-hero {
    padding-top: 120px;
  }
  .case-overview {
    grid-template-columns: 1fr 1fr;
    margin: 40px var(--layout-gutter) 0;
  }
  .case-main-image,
  .case-gallery,
  .next-project {
    margin-left: var(--layout-gutter);
    margin-right: var(--layout-gutter);
  }
  .results-grid {
    grid-template-columns: 1fr;
  }
  .result-card:first-child {
    border-radius: 12px 12px 0 0;
  }
  .result-card:last-child {
    border-radius: 0 0 12px 12px;
  }
  .case-gallery {
    grid-template-columns: 1fr;
  }
  .next-project {
    flex-direction: column;
    align-items: flex-start;
    gap: 24px;
  }
  .case-main-image {
    aspect-ratio: 16/9;
  }
  .case-img-label {
    font-size: 72px;
  }
  .case-section p {
    font-size: 15px;
  }
  .case-section h2 {
    font-size: clamp(22px, 6vw, 28px);
  }
  .case-overview-item {
    padding: 22px 24px;
  }
  .coi-val {
    font-size: 14px;
  }
  .next-project {
    padding: 34px 24px;
  }
}
@media (max-width: 480px) {
  .case-hero {
    padding-top: 104px;
    padding-bottom: 48px;
  }
  .case-back {
    margin-bottom: 32px;
    font-size: 13px;
  }
  .case-meta {
    margin-bottom: 24px;
  }
  .case-title {
    font-size: clamp(30px, 11vw, 42px);
  }
  .case-intro {
    font-size: 14px;
  }
  .case-overview {
    grid-template-columns: 1fr;
  }
  .case-overview-item {
    border-right: none;
    border-bottom: 1px solid var(--border);
    padding: 18px 20px;
  }
  .case-overview-item:last-child {
    border-bottom: none;
  }
  .case-main-image {
    aspect-ratio: 4/3;
  }
  .case-img-label {
    font-size: 56px;
  }
  .case-img-note {
    left: 16px;
    right: auto;
    bottom: 16px;
  }
  .case-section p {
    font-size: 14px;
    line-height: 1.7;
  }
  .results-grid {
    margin-top: 32px;
  }
  .result-card {
    padding: 24px 20px;
  }
  .result-num {
    font-size: 34px;
  }
  .gallery-img {
    aspect-ratio: 4/3;
  }
  .np-title {
    font-size: 26px;
  }
  .np-arrow {
    font-size: 32px;
  }
}

/* ── Lightbox ── */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}
.lightbox.is-open {
  opacity: 1;
  pointer-events: all;
}
.lightbox-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.92);
  backdrop-filter: blur(8px);
  cursor: zoom-out;
}
.lightbox-content {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  max-width: 92vw;
  max-height: 90vh;
  transform: scale(0.94);
  transition: transform 0.3s ease;
}
.lightbox.is-open .lightbox-content {
  transform: scale(1);
}
.lightbox-img {
  display: block;
  max-width: 92vw;
  max-height: 82vh;
  width: auto;
  height: auto;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  object-fit: contain;
  box-shadow: 0 32px 80px rgba(0, 0, 0, 0.7);
}
.lightbox-caption {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.45);
  letter-spacing: 0.03em;
  text-align: center;
}
.lightbox-close {
  position: fixed;
  top: 24px;
  right: 28px;
  z-index: 3;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition:
    background 0.2s,
    transform 0.2s;
}
.lightbox-close:hover {
  background: rgba(255, 255, 255, 0.16);
  transform: scale(1.1);
}
.gallery-img.is-clickable {
  cursor: zoom-in;
}