/* ============================================================
   lightbox.css — Modal · Navigation
   ============================================================ */

.lightbox-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.92);
  z-index: 300;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
}
.lightbox-overlay.open {
  opacity: 1;
  pointer-events: all;
}

.lightbox-modal {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
  max-width: 1200px;
  max-height: 100vh;
  padding: 60px var(--gap-lg) var(--gap-lg);
  overflow-y: auto;
  overflow-x: hidden;
  transform: scale(0.95);
  transition: transform 0.2s ease-out;
  touch-action: pan-y;
}
.lightbox-overlay.open .lightbox-modal {
  transform: scale(1);
}

/* Close button */
.lightbox-close {
  position: fixed;
  top: 20px;
  right: 24px;
  width: 44px; height: 44px;
  display: flex; align-items: center; justify-content: center;
  background: rgba(255,255,255,0.08);
  border: none;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-size: 20px;
  transition: all var(--transition);
  z-index: 10;
}
.lightbox-close:hover { background: rgba(255,255,255,0.15); color: var(--text); }

/* Image container */
.lightbox-img-wrap {
  position: relative;
  width: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
}

.lightbox-placeholder {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  border-radius: var(--radius-md);
}

.lightbox-img {
  max-width: 90vw;
  max-height: 72vh;
  width: auto;
  height: auto;
  border-radius: var(--radius-md);
  display: block;
  opacity: 0;
  transition: opacity 0.4s ease;
  position: relative;
  z-index: 1;
}
.lightbox-img.loaded { opacity: 1; }

.lightbox-video {
  max-width: 90vw;
  max-height: 72vh;
  width: auto;
  height: auto;
  border-radius: var(--radius-md);
  display: block;
  position: relative;
  z-index: 1;
  background: #000;
}

/* Navigation arrows */
.lightbox-nav {
  position: fixed;
  top: 50%;
  transform: translateY(-50%);
  width: 48px; height: 48px;
  display: flex; align-items: center; justify-content: center;
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-size: 20px;
  transition: all var(--transition);
  z-index: 10;
}
.lightbox-nav:hover { background: rgba(255,255,255,0.12); color: var(--text); }
.lightbox-nav.prev { left: 24px; }
.lightbox-nav.next { right: 24px; }
.lightbox-nav:disabled { opacity: 0.2; pointer-events: none; }

/* Info panel */
.lightbox-info {
  width: 100%;
  max-width: 720px;
  padding: var(--gap-lg) 0 var(--gap-sm);
}
.lightbox-title {
  font-family: var(--font-display);
  font-size: clamp(1.2rem, 2.5vw, 1.7rem);
  margin-bottom: 12px;
  color: var(--text);
}
.lightbox-meta {
  display: flex;
  align-items: center;
  gap: var(--gap-md);
  margin-bottom: 12px;
  font-size: 13px;
  color: var(--text-muted);
}
.lightbox-date::before { content: '—'; margin-right: 6px; opacity: 0.4; }
.lightbox-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 16px;
}
.lightbox-tag {
  font-size: 12px;
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border);
  color: var(--text-muted);
  cursor: pointer;
  transition: all var(--transition);
}
.lightbox-tag:hover { border-color: var(--accent); color: var(--accent); }

/* Sref filter button */
.lightbox-sref {
  display: inline-flex;
  align-items: center;
  font-size: 12px;
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border);
  color: var(--text-muted);
  background: transparent;
  cursor: pointer;
  transition: all var(--transition);
  margin-bottom: 12px;
}
.lightbox-sref:hover { border-color: var(--accent); color: var(--accent); }

/* Prompt collapsible */
.lightbox-prompt-toggle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--text-dim);
  background: transparent;
  border: none;
  cursor: pointer;
  transition: color var(--transition);
}
.lightbox-prompt-toggle:hover { color: var(--text-muted); }
.lightbox-prompt-toggle .arrow { transition: transform var(--transition); }
.lightbox-prompt-toggle.open .arrow { transform: rotate(90deg); }
.lightbox-prompt {
  margin-top: 10px;
  padding: 12px 16px;
  background: var(--bg-2);
  border-left: 2px solid var(--border);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.7;
  display: none;
}
.lightbox-prompt.open { display: block; }

/* Mobile nav buttons (below image) */
.lightbox-mobile-nav {
  display: none;
  width: 100%;
  max-width: 720px;
  justify-content: space-between;
  margin-top: var(--gap-md);
}
.lightbox-mobile-nav button {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--text-muted);
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 8px 14px;
  transition: all var(--transition);
}
.lightbox-mobile-nav button:hover { color: var(--text); border-color: var(--text-muted); }
.lightbox-mobile-nav button:disabled { opacity: 0.3; pointer-events: none; }

@media (max-width: 640px) {
  .lightbox-nav.prev, .lightbox-nav.next { display: none; }
  .lightbox-mobile-nav { display: flex; }
  .lightbox-img { max-width: 100%; max-height: 55vh; }
  .lightbox-close { top: 12px; right: 12px; }
  .lightbox-modal { padding: 56px 16px 16px; }
}