.pager-nav {
  display: flex;
  align-items: center;
  margin-top: 20px; /* Bootstrap 3-ish spacing */
}

.pager-col {
  flex: 1 1 33.333%;
}

.pager-left { text-align: left; }
.pager-centre { text-align: center; }
.pager-right { text-align: right; }

/* Prevent button wrapping inside the centre group */
.pager-centre .btn-group {
  white-space: nowrap;
}