* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  height: 100vh;
  background: linear-gradient(135deg, #1b2b40, #1e2f46);
  display: flex;
  justify-content: center;
  align-items: center;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.container {
  text-align: center;
  color: white;
  padding: 20px;
}

.container h1 {
  font-size: 2.5rem;
  font-weight: bold;
  margin-bottom: 10px;
}

.container p {
  font-size: 1rem;
  color: #cfd6e1;
  margin-bottom: 30px;
}

.tracking-box {
  background-color: #3d4655;
  padding: 30px 20px;
  border-radius: 15px;
  display: inline-block;
}

.tracking-box input {
  padding: 12px 15px;
  width: 300px;
  max-width: 90%;
  border-radius: 8px;
  border: none;
  outline: none;
  font-size: 1rem;
  margin-bottom: 15px;
}

.tracking-box button {
  padding: 10px 25px;
  background-color: #a3cc00;
  color: white;
  font-weight: bold;
  border: none;
  border-radius: 25px;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

.tracking-box button:hover {
  background-color: #8bb000;
}