/* ================================================================
   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;
  position: relative;
}

.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 navigation arrows */
.lightbox-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.18);
  color: var(--c-text-2);
  font-size: 32px;
  line-height: 1;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--t-fast);
  z-index: 3001;
  padding: 0;
}
.lightbox-nav:hover {
  background: rgba(157,78,221,0.35);
  border-color: var(--c-accent);
  color: #fff;
  box-shadow: 0 0 16px var(--c-accent-glow);
}
.lightbox-prev { left: 24px; }
.lightbox-next { right: 24px; }
@media (max-width: 768px) {
  .lightbox-nav { width: 40px; height: 40px; font-size: 24px; }
  .lightbox-prev { left: 10px; }
  .lightbox-next { right: 10px; }
}

.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;
}

/* ==================== Gallery Category Music Bar ==================== */
/* Music icon button — shown only when a specific category is active */
.gallery-music-icon {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  color: var(--c-text-3);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--t-fast);
  padding: 0;
  position: relative;
}
.gallery-music-icon:hover,
.gallery-music-icon.active {
  border-color: var(--c-accent);
  color: var(--c-accent-bright);
  box-shadow: 0 0 12px var(--c-accent-glow);
}
.gallery-music-icon.is-playing {
  background: var(--c-accent);
  color: #fff;
  border-color: var(--c-accent);
}
/* Playing indicator dot */
.gallery-music-icon.is-playing::after {
  content: '';
  position: absolute;
  top: -2px;
  right: -2px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: #4ade80;
  border: 2px solid var(--c-bg);
  animation: gm-pulse 1.4s ease-in-out infinite;
}
@keyframes gm-pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.75); }
}

.gallery-music-bar {
  position: absolute;
  top: 68px;
  right: 24px;
  width: 380px;
  max-width: calc(100vw - 48px);
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  overflow: hidden;
  z-index: 200;
  display: none;
  box-shadow: 0 12px 40px rgba(0,0,0,0.6);
}
.gallery-music-bar.show { display: block; }

.gallery-music-main {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 16px;
}

.gallery-music-play {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--c-accent);
  border: none;
  color: #fff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all var(--t-fast);
}
.gallery-music-play:hover {
  background: var(--c-accent-bright);
  box-shadow: 0 0 12px var(--c-accent-glow);
}

.gallery-music-info {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 2px;
  overflow: hidden;
  min-width: 0;
}
.gallery-music-info #gallery-music-track-name {
  font-size: 12px;
  color: var(--c-text-2);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.gallery-music-info #gallery-music-track-pos {
  font-size: 10px;
  color: var(--c-text-4);
}

.gallery-music-vol {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--c-text-3);
  flex-shrink: 0;
}
.gallery-music-vol .panel-slider {
  width: 80px;
}

.gallery-music-list-toggle {
  display: flex;
  align-items: center;
  gap: 6px;
  background: none;
  border: 1px solid var(--c-border);
  color: var(--c-text-3);
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 11px;
  transition: all var(--t-fast);
  flex-shrink: 0;
}
.gallery-music-list-toggle:hover {
  border-color: var(--c-accent);
  color: var(--c-accent-bright);
}
#gallery-music-count {
  font-size: 10px;
  background: var(--c-card);
  padding: 1px 6px;
  border-radius: 8px;
  min-width: 16px;
  text-align: center;
}

.gallery-music-list-wrap {
  border-top: 1px solid var(--c-border);
  padding: 12px 16px;
}

.gallery-music-list-inner {
  display: flex;
  flex-direction: column;
  gap: 4px;
  max-height: 200px;
  overflow-y: auto;
  margin-bottom: 10px;
}

.gallery-music-actions {
  display: flex;
  gap: 8px;
}
.gallery-music-actions .panel-btn.small {
  font-size: 10px;
  padding: 6px 12px;
}

@media (max-width: 1200px) {
  .masonry-grid { column-count: 3; }
}
@media (max-width: 768px) {
  .masonry-grid { column-count: 2; }
  .gallery-sidebar { width: 180px; }
  .gallery-music-main { flex-wrap: wrap; gap: 8px; padding: 8px 12px; }
  .gallery-music-vol .panel-slider { width: 60px; }
  .gallery-music-actions { flex-wrap: wrap; }
}