.drop {
  transition: background-color .18s ease, border-color .18s ease, box-shadow .18s ease, transform .18s ease;
}

.drop.dragging {
  background: #e8f8ef;
  border-color: #08794f;
  box-shadow: inset 0 0 0 3px rgba(8, 121, 79, .12), 0 12px 30px rgba(8, 121, 79, .1);
  transform: scale(1.006);
}

.drop.dragging .file-icon {
  transform: translateY(-4px);
}