body {
  margin: 0;
  padding: 0;
  font-family: Arial, sans-serif;
  background-color: #f0f2f5;
}

.app-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 30px 20px;
}

/* Cabeçalho empilhado */
.chat-header {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-bottom: 20px;
  text-align: center;
}

.logo-ifsc {
  height: 80px;
  margin-bottom: 10px;
}

.chat-header h1 {
  background-color: #4CAF50;
  color: white;
  padding: 12px 24px;
  border-radius: 8px;
  font-size: 1.3em;
  margin: 0;
}

/* Chat */
.chat-container {
  background-color: #fff;
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  width: 100%;
  max-width: 600px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.chat-messages {
  padding: 20px;
  max-height: 400px;
  overflow-y: auto;
  border-bottom: 1px solid #eee;
}

.message {
  margin-bottom: 15px;
  padding: 10px 15px;
  border-radius: 18px;
  max-width: 80%;
  word-wrap: break-word;
}

.user-message {
  background-color: #e1ffc7;
  align-self: flex-end;
  margin-left: auto;
  border-bottom-right-radius: 5px;
}

.bot-message {
  background-color: #f1f0f0;
  align-self: flex-start;
  margin-right: auto;
  border-bottom-left-radius: 5px;
}

.chat-input-area {
  display: flex;
  padding: 15px;
  border-top: 1px solid #eee;
}

#user-input {
  flex-grow: 1;
  padding: 10px;
  border: 1px solid #ddd;
  border-radius: 20px;
  margin-right: 10px;
  font-size: 1em;
}

#send-button {
  background-color: #4CAF50;
  color: white;
  border: none;
  border-radius: 20px;
  padding: 10px 20px;
  cursor: pointer;
  font-size: 1em;
  transition: background-color 0.3s ease;
}

#send-button:hover {
  background-color: #45a049;
}