@import url('https://fonts.googleapis.com/css2?family=Roboto:wght@400;700&display=swap');

* {
  box-sizing: border-box;
}

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


body {
  font-family: 'Roboto', sans-serif;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100vh;
  overflow: hidden; /*disabling bar in the browser*/
  margin: 0;
}

.container{
  text-align: center;
}

.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-container{
  display: flex;
  justify-content: space-between;
  position: relative;
  margin-bottom: 30px;
  max-width: 100%;
  width: 350px;
}


.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: white;
  border-radius: 50%;
  border: 3px solid var(--line-border-empty);
  height: 30px;
  width: 30px;
  /* to make them centred */
  display: flex;
  align-items: center;
  justify-content: center;
}

.circle.active{
  border: 3px solid var(--line-border-fill);
}

.btn{
    background-color: var(--line-border-fill);
    padding: .5em 1.5em;
    border-radius: 7px;
    color: white;
    cursor: pointer;
    border: 0;
    margin: 5px;
}
/* //   when click happens, the animation on click */
.btn:active{
    transform: scale(0.98);
}
.brn:focus{
    outline: 0;
}
.btn:disabled{
  background-color: var(--line-border-empty);
  cursor: not-allowed;
}