body {
  margin: 0;
  font-family: Arial;
  background: #0f172a;
  color: white;
}

.container {
  max-width: 800px;
  margin: auto;
  padding: 20px;
}

.top-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

#chatBox {
  height: 70vh;
  background: #1e293b;
  padding: 10px;
  overflow-y: auto;
  border-radius: 10px;
  margin-top: 10px;
}

.input-area {
  display: flex;
  margin-top: 10px;
}

input {
  flex: 1;
  padding: 10px;
  border-radius: 6px;
  border: none;
}

button {
  margin-left: 10px;
  padding: 10px 20px;
  background: #2563eb;
  color: white;
  border: none;
  border-radius: 6px;
}