.drop-zone.dragover {
  border-color: #4de3e0 !important;
  background: rgba(77, 227, 224, 0.06);
}

.aspect-btn.active {
  border-color: #4de3e0 !important;
  color: #4de3e0;
  background: rgba(77, 227, 224, 0.08);
}

.img-thumb {
  position: relative;
  aspect-ratio: 1;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid #333338;
  cursor: grab;
}
.img-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.img-thumb .remove-btn {
  position: absolute;
  top: 4px;
  right: 4px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: rgba(0,0,0,0.7);
  color: #f87171;
  font-size: 11px;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity .15s;
}
.img-thumb:hover .remove-btn { opacity: 1; }
.img-thumb .lip-btn {
  position: absolute;
  top: 4px;
  left: 4px;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: rgba(0,0,0,0.7);
  color: #888;
  font-size: 11px;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity .15s, color .15s;
}
.img-thumb:hover .lip-btn { opacity: 1; }
.img-thumb .lip-btn.lip-set {
  opacity: 1;
  color: #4de3e0;
  box-shadow: 0 0 0 1.5px #4de3e0;
}
.img-thumb .idx-badge {
  position: absolute;
  bottom: 4px;
  left: 4px;
  background: rgba(0,0,0,0.7);
  color: #4de3e0;
  font-size: 10px;
  padding: 1px 6px;
  border-radius: 6px;
  font-weight: 700;
}
.img-thumb.drag-src { opacity: 0.4; }

.tl-seg {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  color: #999;
  border-right: 1px solid #333338;
  background-size: cover;
  background-position: center;
  position: relative;
  min-width: 24px;
}
.tl-seg span {
  background: rgba(0,0,0,0.6);
  padding: 1px 5px;
  border-radius: 4px;
}