/* Portfolio page */
.portfolio-header {
  padding: calc(var(--nav-height) + var(--space-xl)) 0 var(--space-xl);
  text-align: center;
}

.portfolio-header h1 {
  display: inline-block;
  position: relative;
}

/* Masonry grid */
.masonry-grid {
  columns: 3 300px;
  column-gap: var(--space-md);
  padding-bottom: var(--space-xl);
}

.masonry-grid figure {
  break-inside: avoid;
  margin-bottom: var(--space-md);
  position: relative;
  overflow: hidden;
  border-radius: 4px;
  cursor: pointer;
  background: var(--bg-surface);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.masonry-grid figure:hover {
  transform: translateY(-4px) rotate(-0.5deg);
  box-shadow: 0 8px 32px var(--accent-glow);
}

.masonry-grid figure img {
  width: 100%;
  display: block;
  transition: transform var(--transition-normal);
}

.masonry-grid figure:hover img {
  transform: scale(1.02);
}

.masonry-grid figcaption {
  padding: var(--space-sm) var(--space-md);
  font-size: 0.875rem;
  color: var(--text-secondary);
  font-family: var(--font-display);
  font-size: 1rem;
}

/* Lightbox */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(0, 0, 0, 0.92);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
}

.lightbox.active {
  opacity: 1;
  pointer-events: all;
}

.lightbox-img {
  max-height: 90vh;
  max-width: 90vw;
  object-fit: contain;
  border-radius: 4px;
  transition: transform var(--transition-normal);
}

.lightbox-close {
  position: absolute;
  top: var(--space-md);
  right: var(--space-md);
  color: var(--text-primary);
  font-size: 2rem;
  padding: var(--space-sm);
  line-height: 1;
  z-index: 201;
}

.lightbox-close:hover {
  color: var(--phthalo-light);
}

.lightbox-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-primary);
  font-size: 2rem;
  padding: var(--space-md);
  z-index: 201;
  transition: color var(--transition-fast);
}

.lightbox-nav:hover {
  color: var(--phthalo-light);
}

.lightbox-prev { left: var(--space-md); }
.lightbox-next { right: var(--space-md); }

.lightbox-caption {
  position: absolute;
  bottom: var(--space-lg);
  left: 50%;
  transform: translateX(-50%);
  color: var(--text-secondary);
  font-family: var(--font-display);
  font-size: 1.2rem;
  text-align: center;
}

/* Responsive */
@media (max-width: 768px) {
  .masonry-grid {
    columns: 2 200px;
  }

  .lightbox-nav {
    font-size: 1.5rem;
    padding: var(--space-sm);
  }
}

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