body {
  background: #f4f4f4;
  font-family: 'Segoe UI', sans-serif;
  display: flex;
  justify-content: center;
  padding: 40px;
}
.chat-container {
  width: 100%;
  max-width: 600px;
  background: white;
  padding: 25px;
  border-radius: 10px;
  box-shadow: 0 0 12px rgba(0,0,0,0.1);
}
h1 {
  margin-bottom: 15px;
  color: #4A00E0;
}
textarea {
  width: 100%;
  height: 100px;
  padding: 12px;
  font-size: 16px;
  border: 1px solid #ccc;
  border-radius: 6px;
  margin-bottom: 10px;
}
input[type="file"] {
  margin-bottom: 10px;
}
button {
  padding: 12px 25px;
  background: #4A00E0;
  color: white;
  border: none;
  border-radius: 6px;
  font-size: 16px;
  cursor: pointer;
}
.resposta {
  margin-top: 20px;
  background: #f9f9f9;
  padding: 15px;
  border-left: 4px solid #4A00E0;
}