body {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  margin: 0;
  background-color: #0A1628;
}
.progress-container {
  width: 140px;
  height: 6px;
  background-color: #1E293B;
  border-radius: 6px;
  overflow: hidden;
}
.progress-bar {
  height: 100%;
  width: 0;
  background-color: #1D6FE0;
  transition: width 0.3s ease;
  animation: indeterminate 2s infinite ease-in-out;
}
@keyframes indeterminate {
  0% { transform: translateX(-100%); width: 30%; }
  50% { transform: translateX(50%); width: 60%; }
  100% { transform: translateX(200%); width: 30%; }
}