body {
  font-family: 'Poppins', sans-serif;
  background: #f5f7fa;
  margin: 0;
  padding: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
}

.tracking-container {
  text-align: center;
  background: white;
  padding: 40px;
  border-radius: 20px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.1);
  width: 90%;
  max-width: 500px;
}

h1 {
  color: #1a237e;
  margin-bottom: 10px;
}

p {
  color: #555;
  font-size: 14px;
}

.tracking-box {
  display: flex;
  gap: 10px;
  margin-top: 20px;
}

.tracking-box input {
  flex: 1;
  padding: 10px 15px;
  border: 1px solid #ccc;
  border-radius: 8px;
  font-size: 14px;
}

.tracking-box button {
  padding: 10px 20px;
  background: #1a237e;
  color: white;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: 0.3s;
}

.tracking-box button:hover {
  background: #3949ab;
}

.tracking-result {
  margin-top: 25px;
}

.loading {
  color: #ff9800;
  font-weight: bold;
}

.error {
  color: #e53935;
  font-weight: bold;
}

.progress-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin: 25px 0;
  position: relative;
}

.progress-container::before {
  content: "";
  position: absolute;
  top: 15px;
  left: 0;
  width: 100%;
  height: 4px;
  background: #ccc;
  z-index: 0;
  border-radius: 4px;
}

.stage {
  text-align: center;
  position: relative;
  z-index: 1;
}

.circle {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: #ccc;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 5px;
  color: white;
  font-weight: bold;
  transition: 0.4s;
}

.stage.active .circle {
  background: #1a237e;
  transform: scale(1.1);
}

.stage p {
  font-size: 12px;
  color: #555;
}

.stage.active p {
  color: #1a237e;
  font-weight: bold;
}

.summary {
  font-size: 14px;
  margin-top: 15px;
  color: #333;
}