body {
  background-color: #f2f2f2;
  font-family: sans-serif;
  text-align: center;
}



body { margin: 0; font-family: 'Segoe UI', sans-serif; display: flex; }
.sidebar { background: #0080ff; color: white; width: 200px; padding: 20px; }
.sidebar ul { list-style: none; padding: 0; }
.sidebar li { margin: 10px 0; cursor: pointer; }
main { flex: 1; padding: 30px; background: #f0f0f0; }

.dark-mode {
  background: #121212;
  color: #fff;
}
.dark-mode main { background: #1e1e1e; }
.dark-mode .sidebar { background: #333; }



.container {
  width: 90%;
  max-width: 600px;
  margin: auto;
  padding: 20px;
  background: #fff;
  border-radius: 10px;
  box-shadow: 0 0 10px #ccc;
}

h1 {
  color: #4CAF50;
}

input[type="file"], input[type="text"] {
  margin: 10px 0;
  padding: 8px;
  width: 80%;
}

button {
  padding: 10px 15px;
  margin: 5px;
  background: #4CAF50;
  color: white;
  border: none;
  border-radius: 5px;
}

.chat-box {
  height: 200px;
  overflow-y: auto;
  border: 1px solid #ccc;
  padding: 10px;
  margin-top: 10px;
  background: #fafafa;
}

.chat-box .mensagem-eu {
  text-align: right;
  background: #dcf8c6;
  margin-bottom: 5px;
  padding: 5px;
  border-radius: 5px;
}

.chat-box .mensagem-outro {
  text-align: left;
  background: #fff;
  margin-bottom: 5px;
  padding: 5px;
  border-radius: 5px;
}

img {
  max-width: 100%;
  border-radius: 10px;
  margin-top: 10px;
}

.welcome {
  text-align: center;
  animation: fadeIn 1.2s ease-in-out;
  padding: 50px;
}

.welcome h1 {
  font-size: 28px;
  color: #0080ff;
  margin-bottom: 15px;
}

.welcome button {
  background: #0080ff;
  color: white;
  border: none;
  padding: 12px 20px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 16px;
}

.welcome button:hover {
  background: #005fcc;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-10px); }
  to   { opacity: 1; transform: translateY(0); }
}