.design-timeline {
  flex: none;
  min-width: 0;
  height: 40px;
  border-top: 1px solid #d7e1e8;
  background: #f8fbfd;
}

.timeline-main { height: 100%; display: flex; align-items: center; min-width: 0; }
.timeline-track {
  min-width: 0;
  flex: 1;
  height: 100%;
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 0 8px;
  overflow-x: auto;
  overflow-y: hidden;
  scrollbar-width: thin;
  scrollbar-color: #bdcfd9 transparent;
}

.timeline-step {
  flex: none;
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  padding: 2px;
  border: 1px solid #d7e4eb;
  border-radius: 5px;
  background: #fff;
  color: #466172;
  cursor: pointer;
  transition: all 0.15s ease;
}
.timeline-step:hover {
  border-color: #2189bf;
  background: #f0f7fb;
  transform: translateY(-1px);
}
.timeline-step[aria-current="step"] {
  border-color: #2189bf;
  background: #e8f5fc;
  box-shadow: 0 0 0 1px rgba(33, 137, 191, .13);
}
.timeline-step.is-partial { border-style: dashed; }
.timeline-step.is-future { opacity: .42; }
.timeline-step svg { display: block; width: 20px; height: 20px; }
.timeline-step svg.cad-icon { width: 20px; height: 20px; }

.timeline-sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@media (max-width: 620px) {
  .timeline-track { gap: 4px; padding: 0 5px; }
}