.hidden {
    display: none;
}

/* progress bar */

@import url("https://fonts.googleapis.com/css2?family=Muli&display=swap");

:root {
  --line-border-fill: #3498db;
  --line-border-empty: #e0e0e0;
}


.container-custom {
  text-align: center;
}

.progress-container {
  display: flex;
  justify-content: space-between;
  position: relative;
  margin-bottom: 30px;
  max-width: 100%;
  width: 550px;
}
/* Tablet  */
@media only screen and (max-width: 768px) {
    .progress-container {
      width: 450px;
    }
  }
  
/* Mobile */
@media only screen and (max-width: 480px) {
    .progress-container {
      width: 330px;
    }
  }

.progress-container::before {
  content: ""; 
  background-color: var(--line-border-empty);
  position: absolute;
  top: 50%;
  left: 0;
  transform: translateY(-50%);
  height: 4px;
  width: 100%;
  z-index: -1;
}

.progress {
  background-color: var(--line-border-fill);
  position: absolute;
  top: 50%;
  left: 0;
  transform: translateY(-50%);
  height: 4px;
  width: 0%;
  z-index: -1;
  transition: 0.4s ease;
}

.circle {
  background-color: #fff;
  color: #999;
  border-radius: 50%;
  height: 50px;
  width: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 3px solid var(--line-border-empty);
  transition: 0.4s ease;
}

.circle.active {
  border-color: var(--line-border-fill);
}