.project-detail-header {
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  background: var(--software-bg);
}

.project-detail-label {
  margin-bottom: 1rem;
  color: var(--software-accent);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.project-detail-hero h1 {
  max-width: 950px;
  font-size: clamp(3rem, 8vw, 7rem);
  line-height: 0.95;
}

.project-detail-introduction {
  max-width: 750px;
  margin-top: 2rem;
  color: var(--software-muted);
  font-size: clamp(1.2rem, 2vw, 1.5rem);
}

.project-facts {
  margin-top: 3rem;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.project-facts > div {
  padding: 1.5rem;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius);
  background: var(--software-surface);
}

.project-facts dt {
  margin-bottom: 0.5rem;
  color: var(--software-accent);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
}

.project-facts dd {
  color: var(--software-muted);
}

.project-detail-hero__image {
  width: 100%;
  margin-top: 4rem;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius);
  display: block;
}

.project-detail-overview {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
}

.project-detail-copy {
  padding-top: 0.5rem;
}

.project-detail-copy p {
  color: var(--software-muted);
  font-size: 1.1rem;
}

.project-detail-copy p + p {
  margin-top: 1.5rem;
}

.project-detail-challenge {
  background: var(--software-surface);
}

.project-detail-challenge h2 {
  max-width: 900px;
}

.challenge-grid {
  margin-top: 3rem;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.challenge-grid article {
  padding: 2rem;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius);
  background: var(--software-card);
}

.challenge-grid h3 {
  margin-bottom: 1rem;
  color: var(--software-accent);
  font-size: 1.4rem;
}

.challenge-grid p {
  color: var(--software-muted);
}

.project-detail-wide-image {
  width: 100%;
  margin-top: 3rem;
  border-radius: var(--radius);
  display: block;
}

.feature-grid {
  margin-top: 3rem;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.feature-grid article {
  padding: 2rem;
  border-top: 3px solid var(--software-accent);
  border-radius: var(--radius);
  background: var(--software-surface);
}

.feature-grid h3 {
  margin-bottom: 1rem;
  font-size: 1.3rem;
}

.feature-grid p {
  color: var(--software-muted);
}

.project-detail-gallery {
  background: var(--software-surface);
}

.detail-gallery {
  margin-top: 3rem;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.detail-gallery figure {
  overflow: hidden;
  border-radius: var(--radius);
  background: var(--software-card);
}

.detail-gallery img {
  width: 100%;
  aspect-ratio: 16 / 9;
  display: block;
  object-fit: cover;
  object-position: top;
}

.detail-gallery figcaption {
  padding: 1rem 1.25rem;
  color: var(--software-muted);
}

.project-detail-actions {
  text-align: left;
}

.project-detail-actions > p {
  margin: 1.5rem 0 2rem;
  color: var(--software-muted);
  font-size: 1.1rem;
}

@media (max-width: 750px) {
  .project-facts,
  .project-detail-overview,
  .challenge-grid,
  .feature-grid,
  .detail-gallery {
    grid-template-columns: 1fr;
  }

  .project-detail-overview {
    gap: 2rem;
  }

  .project-detail-hero__image,
  .project-detail-wide-image {
    margin-top: 2.5rem;
  }
}