.detail-hero {
  padding-top: 72px;
  background: linear-gradient(150deg, var(--blue-muted) 0%, var(--cream) 60%, var(--red-muted) 100%);
  position: relative;
  overflow: hidden;
}

.detail-hero-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 3.5rem 2rem 3rem;
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-light);
  letter-spacing: 0.06em;
  margin-bottom: 1.8rem;
  transition: color var(--transition), gap var(--transition);
}

.back-link:hover {
  color: var(--red);
  gap: 10px;
}

.detail-tags {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
  margin-bottom: 1.2rem;
}

.detail-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 500;
  line-height: 1.25;
  color: var(--text-dark);
  margin-bottom: 0.6rem;
}

.detail-hero-sub {
  font-family: var(--font-serif);
  font-size: 1rem;
  color: var(--text-light);
  font-weight: 300;
  margin-bottom: 2rem;
}

.detail-meta-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
}

.detail-meta-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  color: var(--text-mid);
}

.detail-meta-item svg {
  width: 16px;
  height: 16px;
  color: var(--blue);
  flex-shrink: 0;
}

.detail-meta-item strong {
  color: var(--text-dark);
}

.detail-cover {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

.detail-cover-img {
  width: 100%;
  height: 420px;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--blue-muted), var(--cream));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-light);
  font-size: 0.9rem;
  letter-spacing: 0.08em;
  overflow: hidden;
  box-shadow: var(--shadow-md);
  margin-top: -1rem;
}

.detail-cover-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.detail-layout {
  max-width: 1200px;
  margin: 0 auto;
  padding: 4rem 2rem;
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 4rem;
  align-items: start;
}

.detail-body h2 {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text-dark);
  margin: 2rem 0 0.8rem;
  padding-left: 0.8rem;
  border-left: 3px solid var(--red);
}

.detail-body h2:first-child {
  margin-top: 0;
}

.detail-body p,
.detail-body li {
  font-family: var(--font-serif);
  font-size: 0.97rem;
  color: var(--text-mid);
  line-height: 2.1;
}

.detail-body p {
  margin-bottom: 1.2rem;
}

.detail-body ul {
  margin: 0 0 1.5rem 1.2rem;
}

.gallery {
  margin: 2.5rem 0;
}

.gallery-title {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 1rem;
  padding-left: 0.8rem;
  border-left: 3px solid var(--blue);
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

.gallery-item {
  aspect-ratio: 4/3;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--blue-muted);
}

.gallery-item:first-child {
  grid-column: span 2;
  aspect-ratio: 16/9;
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.gallery-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  color: var(--text-light);
  letter-spacing: 0.06em;
}

.detail-sidebar {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  position: sticky;
  top: 96px;
}

.sidebar-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
}

.sidebar-card h4 {
  font-family: var(--font-serif);
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 1rem;
  padding-bottom: 0.8rem;
  border-bottom: 1px solid var(--border);
}

.sidebar-info-row {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-bottom: 1rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}

.sidebar-info-row:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.sidebar-info-label {
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-light);
}

.sidebar-info-value {
  font-family: var(--font-serif);
  font-size: 0.88rem;
  color: var(--text-dark);
  line-height: 1.6;
}

.nav-events {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.nav-event-link {
  display: block;
  padding: 0.7rem 0.9rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  font-family: var(--font-serif);
  font-size: 0.82rem;
  color: var(--text-mid);
  line-height: 1.5;
  transition: all var(--transition);
}

.nav-event-link:hover {
  border-color: var(--blue-light);
  color: var(--blue);
  background: var(--blue-muted);
}

.nav-event-link .event-year {
  font-size: 0.68rem;
  color: var(--text-light);
  display: block;
  margin-bottom: 2px;
}

@media (max-width: 900px) {
  .detail-layout {
    grid-template-columns: 1fr;
  }

  .detail-sidebar {
    position: static;
  }

  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .gallery-item:first-child {
    grid-column: span 2;
  }
}

@media (max-width: 480px) {
  .gallery-grid {
    grid-template-columns: 1fr;
  }

  .gallery-item:first-child {
    grid-column: span 1;
  }
}