/* ================================================================
   Gallery — Bookmark Categories + Masonry Layout
   ================================================================ */

.gallery-layout {
  display: flex;
  height: calc(100vh - var(--nav-h));
}

/* Sidebar */
.gallery-sidebar {
  width: var(--sidebar-w);
  background: var(--c-surface);
  border-right: 1px solid var(--c-border);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.gallery-sidebar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--c-text-3);
  border-bottom: 1px solid var(--c-border);
}

.gallery-tabs {
  flex: 1;
  overflow-y: auto;
  padding: 8px;
}

.gallery-tab {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  margin-bottom: 4px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--t-fast);
  border-left: 3px solid transparent;
  position: relative;
}
.gallery-tab:hover {
  background: var(--c-card);
}
.gallery-tab.active {
  background: var(--c-card);
  border-left-color: var(--c-accent);
}
.gallery-tab-name {
  flex: 1;
  font-size: 13px;
  color: var(--c-text-2);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.gallery-tab.active .gallery-tab-name {
  color: var(--c-text);
  font-weight: 500;
}
.gallery-tab-count {
  font-size: 11px;
  color: var(--c-text-4);
  background: var(--c-bg);
  padding: 2px 8px;
  border-radius: 10px;
}
.gallery-tab-tab-icon {
  font-size: 14px;
  color: var(--c-text-4);
}

/* Main area */
.gallery-main {
  flex: 1;
  overflow-y: auto;
  padding: 24px;
}

.gallery-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}

.gallery-header h2 {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 600;
  letter-spacing: 3px;
  color: var(--c-text);
}

.gallery-actions {
  display: flex;
  gap: 8px;
}

/* Masonry grid — Instagram-style varied sizes */
.masonry-grid {
  column-count: 4;
  column-gap: 12px;
}

.masonry-item {
  break-inside: avoid;
  margin-bottom: 12px;
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  position: relative;
  background: var(--c-card);
  border: 1px solid var(--c-border);
  transition: all var(--t-fast);
}
.masonry-item:hover {
  border-color: var(--c-accent);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.4), 0 0 12px var(--c-accent-glow);
}
.masonry-item img {
  width: 100%;
  display: block;
  transition: transform 0.4s ease;
}
.masonry-item:hover img {
  transform: scale(1.05);
}

.masonry-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(8,6,13,0.85) 0%, transparent 50%);
  display: flex;
  align-items: flex-end;
  padding: 12px;
  opacity: 0;
  transition: opacity var(--t-fast);
}
.masonry-item:hover .masonry-overlay {
  opacity: 1;
}
.masonry-overlay-name {
  font-size: 12px;
  color: var(--c-text);
  font-weight: 500;
  text-shadow: 0 1px 4px rgba(0,0,0,0.8);
}

.masonry-del {
  position: absolute;
  top: 8px;
  right: 8px;
  background: rgba(8,6,13,0.8);
  border: 1px solid var(--c-border);
  color: #e88;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  cursor: pointer;
  display: none;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  transition: all var(--t-fast);
  z-index: 5;
}
.masonry-item:hover .masonry-del {
  display: flex;
}
.masonry-del:hover {
  border-color: var(--c-danger);
  background: rgba(230,57,70,0.2);
}

.gallery-empty {
  grid-column: 1 / -1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding: 80px 0;
  color: var(--c-text-4);
}
.gallery-empty p {
  font-size: 14px;
  letter-spacing: 2px;
}
.gallery-empty svg { opacity: 0.3; }

/* Lightbox */
.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.92);
  backdrop-filter: blur(8px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 3000;
  padding: 40px;
}
.lightbox.show { display: flex; }

.lightbox img {
  max-width: 85%;
  max-height: 80vh;
  border-radius: var(--radius);
  box-shadow: 0 16px 64px rgba(0,0,0,0.8);
}

.lightbox-close {
  position: absolute;
  top: 24px;
  right: 32px;
  font-size: 32px;
  color: var(--c-text-3);
  cursor: pointer;
  transition: color var(--t-fast);
}
.lightbox-close:hover { color: var(--c-text); }

.lightbox-info {
  position: absolute;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 13px;
  color: var(--c-text-2);
  background: rgba(15,12,23,0.8);
  padding: 8px 20px;
  border-radius: 20px;
  border: 1px solid var(--c-border);
}

/* Category modal */
.cat-modal-input {
  margin-bottom: 12px;
}

@media (max-width: 1200px) {
  .masonry-grid { column-count: 3; }
}
@media (max-width: 768px) {
  .masonry-grid { column-count: 2; }
  .gallery-sidebar { width: 180px; }
}