body {
  font-family: Arial, sans-serif;
  background: #faf7f2;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
}

.tracker-box {
  background: #fff;
  padding: 25px 30px;
  border-radius: 12px;
  box-shadow: 0 0 10px rgba(0,0,0,0.1);
  text-align: center;
  width: 320px;
}

button {
  background: #e6b800;
  color: #fff;
  border: none;
  padding: 10px 15px;
  border-radius: 8px;
  cursor: pointer;
  margin-top: 10px;
}

button:hover {
  background: #d4a600;
}

.price-box {
  margin-top: 15px;
  font-size: 1.1em;
}

#updateTime {
  color: gray;
  font-size: 0.9em;
  margin-top: 10px;
}