.gallery-container {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  grid-auto-rows: 250px;
  gap: 15px;
  grid-auto-flow: dense; /* This fills the gaps automatically */
}

.span-2 { grid-column: span 2; }
.span-1 { grid-column: span 1; }

.chart-row {
  display: flex;
  align-items: center;
  background: rgba(255, 255, 255, 0.05);
  border-left: 4px solid #00f2ff; /* Electric Blue for Industry feel */
  margin-bottom: 8px;
  padding: 10px;
  transition: transform 0.2s;
}