/* TechTools — nine-grid styles [v2.1 §4.5 IM1] */
.drop-zone {
  border: 2px dashed rgba(255,255,255,0.15);
  border-radius: 12px;
  padding: 40px 20px;
  text-align: center;
  color: var(--text-secondary);
  font-size: 14px;
  cursor: pointer;
  transition: border-color 0.25s ease, background 0.25s ease;
}
.drop-zone.dragover {
  border-color: var(--accent-magenta);
  background: rgba(255,0,110,0.06);
}
.drop-zone p { margin-bottom: 12px; }
.ng-preview {
  margin-top: 20px;
  text-align: center;
}
.ng-preview img {
  max-width: 100%;
  max-height: 360px;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,0.1);
}
.ng-info {
  margin-top: 10px;
  font-size: 13px;
  color: var(--text-secondary);
}
.ng-results {
  margin-top: 24px;
}
.ng-results h3 {
  font-family: var(--font-hero);
  font-size: 15px;
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: 14px;
}
.ng-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 4px;
  width: 300px;
  max-width: 100%;
  background: #000;
  padding: 4px;
  border-radius: 8px;
  margin-bottom: 16px;
}
.ng-grid .ng-cell {
  position: relative;
  aspect-ratio: 1;
  cursor: pointer;
  overflow: hidden;
  border: 2px solid transparent;
  border-radius: 2px;
  transition: border-color 0.2s ease;
}
.ng-grid .ng-cell img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.ng-grid .ng-cell.selected {
  border-color: var(--accent-magenta);
}
.ng-grid .ng-cell .ng-num {
  position: absolute;
  top: 2px;
  left: 2px;
  background: rgba(0,0,0,0.6);
  color: #fff;
  font-size: 10px;
  padding: 0 5px;
  border-radius: 4px;
}
.ng-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}