body {
  font-family: Arial, sans-serif;
  text-align: center;
  padding: 40px;
  transition: background 0.8s ease;
  color: white;
}


.intro-bg {
  background: linear-gradient(135deg, #667eea, #764ba2);
}

#nameBox {
  margin-top: 120px;
}

input {
  padding: 10px;
  border-radius: 10px;
  border: none;
  width: 250px;
  margin-top: 10px;
}

button {
  margin-top: 15px;
  padding: 10px 22px;
  border-radius: 25px;
  border: none;
  cursor: pointer;
  font-size: 15px;
}

.subtitle {
  font-size: 18px;
  margin-bottom: 20px;
}


#app {
  display: none;
}

.app-bg {
  background: linear-gradient(135deg, #43cea2, #185a9d, #6a11cb);
}

textarea {
  width: 80%;
  height: 80px;
  border-radius: 12px;
  padding: 10px;
  border: none;
}

.thought {
  margin: 25px;
  font-size: 19px;
  line-height: 1.5;
}

#response {
  margin-top: 20px;
  font-size: 18px;
}

.trackBtn {
  background: #ffe066;
  color: #333;
}

#chartBox {
  display: none;
  margin-top: 30px;
  background: white;
  padding: 20px;
  border-radius: 15px;
}

footer {
  margin-top: 40px;
  font-size: 14px;
  opacity: 0.85;
}