body {
  margin: 0;
  background: linear-gradient(270deg, #000f55, #000b5c, #0017b3);
  color: #fff;
}

.section {
  padding: 60px 20px;
  max-width: 1000px;
  margin: auto;
	margin-top: 85px;
}

.title {
  text-align: center;
  margin-bottom: 40px;
}

.title h2 {
  font-size: 32px;
  font-weight: 700;
}

/* Timeline */
.timeline {
  position: relative;
}

/* Background line */
.timeline::before {
  content: '';
  position: absolute;
  left: 50%;
  width: 2px;
  height: 100%;
  background: rgba(255,255,255,0.15);
  transform: translateX(-50%);
}

/* Progress line */
.progress-line {
  position: absolute;
  left: 50%;
  width: 2px;
  height: 0;
  background: #4da3ff;
  transform: translateX(-50%);
  transition: height 0.2s ease;
}

/* Step */
.step {
  display: flex;
  justify-content: space-between;
  margin-bottom: 60px;
  opacity: 0.4;
  transform: translateY(40px);
  transition: 0.5s ease;
}

.step.show {
  opacity: 1;
  transform: translateY(0);
}

.step.active {
  opacity: 1;
}

/* Zig-zag */
.step:nth-child(even) {
  flex-direction: row-reverse;
}

/* Card */
.card {
  width: 44%;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  padding: 22px;
  border-radius: 16px;
  transition: 0.3s ease;
}

.card:hover {
  transform: translateY(-5px);
}

.step.active .card {
  background: rgba(255,255,255,0.12);
  border-color: #4da3ff;
  transform: scale(1.02);
}

/* Lottie */
.lottie {
  height: 180px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 12px;
}

.card:hover .lottie {
  transform: scale(1.05);
  transition: 0.3s ease;
}

/* Text */
.card h3 {
  margin: 10px 0;
	margin-bottom: 10px;
  color: #00faff;
  font-weight: 600;
}

.card p {
  font-size: 16px;
  color: #ffffff;
}

/* Circle */
.circle {
  width: 50px;
  height: 50px;
  background: rgba(255,255,255,0.15);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  font-weight: 600;
  font-size: 14px;
  transition: 0.3s;
}

.step.active .circle {
  background: #4da3ff;
  color: #fff;
}

/* Mobile */
@media(max-width: 768px) {

  .timeline::before,
  .progress-line {
    left: 20px;
  }

  .step {
    flex-direction: column !important;
    padding-left: 60px;
  }

  .card {
    width: 100%;
  }

  .circle {
    left: 20px;
  }
}