/* =============================================================
   THE DARK ROOM — Neon Noir (purple / pink)
============================================================= */

#district-darkroom {
  background: var(--clr-bg);
}

#district-darkroom .btn-back-city:hover {
  border-color: var(--clr-pink);
  color: var(--clr-pink);
}

#darkroom-content .district-heading {
  font-size: clamp(1.8rem, 5vw, 3rem);
  color: var(--clr-text-hi);
  letter-spacing: 0.05em;
  margin-bottom: var(--sp-xs);
}

#darkroom-content .district-sub {
  font-size: 0.65rem;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: var(--clr-purple);
  margin-bottom: var(--sp-xl);
}

/* Category tabs */
#darkroom-content .gallery-tabs {
  display: flex;
  gap: var(--sp-sm);
  margin-bottom: var(--sp-lg);
  border-bottom: 1px solid var(--clr-border);
  padding-bottom: var(--sp-sm);
}

#darkroom-content .gallery-tab {
  background: transparent;
  border: none;
  color: var(--clr-muted);
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  cursor: pointer;
  padding: var(--sp-xs) var(--sp-sm);
  border-bottom: 2px solid transparent;
  transition: color var(--transition-fast), border-color var(--transition-fast);
}
#darkroom-content .gallery-tab:hover,
#darkroom-content .gallery-tab.active {
  color: var(--clr-pink);
  border-bottom-color: var(--clr-pink);
}

/* Photo grid */
#darkroom-content .photo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 2px;
  margin-bottom: var(--sp-xl);
}

#darkroom-content .photo-item {
  aspect-ratio: 1;
  overflow: hidden;
  cursor: pointer;
  background: var(--clr-surface);
  position: relative;
}

#darkroom-content .photo-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  filter: brightness(0.8) saturate(0.6);
  transition: filter var(--transition-mid), transform var(--transition-mid);
}

#darkroom-content .photo-item:hover img {
  filter: brightness(1) saturate(1);
  transform: scale(1.04);
}

#darkroom-content .photo-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--clr-muted);
  font-size: 0.6rem;
  letter-spacing: 0.1em;
}

/* Lightbox */
#lightbox {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.92);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 500;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-mid);
}
#lightbox.open {
  opacity: 1;
  pointer-events: all;
}
#lightbox img {
  max-width: 90vw;
  max-height: 90vh;
  object-fit: contain;
  border: 1px solid var(--clr-border);
}
#lightbox-close {
  position: absolute;
  top: var(--sp-md);
  right: var(--sp-md);
  background: transparent;
  border: 1px solid var(--clr-border);
  color: var(--clr-text);
  font-family: var(--font-mono);
  font-size: 1rem;
  width: 36px;
  height: 36px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}
#lightbox-close:hover {
  border-color: var(--clr-pink);
  color: var(--clr-pink);
}