body {
  font-family: sans-serif;
  margin: 0;
  padding: 0;
  background: #f2f2f2;
}

.container {
  max-width: 600px;
  margin: 40px auto;
  padding: 20px;
  background: white;
  border-radius: 8px;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

h1,
h2 {
  text-align: center;
}

form {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

label {
  font-weight: bold;
}

input {
  padding: 8px;
  border-radius: 4px;
  border: 1px solid #ccc;
}

button {
  padding: 10px;
  background: #007bff;
  color: white;
  font-weight: bold;
  border: none;
  border-radius: 4px;
  cursor: pointer;
}

button:hover {
  background: #0056b3;
}

#chat {
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-height: 400px;
  overflow-y: auto;
  margin-bottom: 10px;
  padding: 10px;
  border: 1px solid #ccc;
  background: #fafafa;
  border-radius: 6px;
}

.message {
  max-width: 70%;
  padding: 8px 12px;
  border-radius: 12px;
  word-wrap: break-word;
}

.message.self {
  align-self: flex-end;
  background: #007bff;
  color: white;
}

.message.other {
  align-self: flex-start;
  background: #e0e0e0;
  color: black;
}