.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-bottom: 4px;
}
.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  margin-bottom: 4px;
}
.grid-3 img, .grid-4 img { width: 100%; }
.col-caption { text-align: center; font-size: 0.9rem; font-style: italic; margin-bottom: 16px; }
.col-label { text-align: center; font-size: 0.9rem; font-weight: bold; }
.paint-videos-wrap { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; }
.paint-videos-wrap video { max-height: 350px; width: auto; }