.free-delivery-bar {
  margin: 12px 0;
  padding: 12px 16px;
  border: 1px solid #e5e5e5;
  background: #fafafa;
  font-family: inherit;
  transition: background .3s ease, border-color .3s ease;
}
.free-delivery-bar .fdb-message {
  margin: 0 0 8px;
  font-size: 15px;
}
.fdb-track {
  height: 8px;
  background: #e5e5e5;
  overflow: hidden;
}
.fdb-fill {
  height: 100%;
  width: 0;
  background: #f0a030;
  transition: width .3s ease, background .3s ease;
}

/* Threshold met: everything turns green */
.free-delivery-bar.fdb-reached {
  background: #e8f5e9;
  border-color: #2e7d32;
}
.free-delivery-bar.fdb-reached .fdb-message {
  color: #1b5e20;
  font-weight: bold;
}
.free-delivery-bar.fdb-reached .fdb-fill {
  background: #2e7d32;
}