body {
  background: #111;
  color: #eee;
  font-family: sans-serif;
  margin: 0;
  padding: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
}
.chat-container {
  width: 100%;
  max-width: 600px;
  background: #1e1e1e;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 0 10px #000;
}
.chat-header {
  background: #d72638;
  padding: 15px;
  font-size: 20px;
  font-weight: bold;
  text-align: center;
  color: #fff;
}
.chat-box {
  height: 400px;
  overflow-y: auto;
  padding: 15px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.user-msg, .ai-msg {
  padding: 10px;
  border-radius: 10px;
  max-width: 80%;
}
.user-msg {
  background: #2e2e2e;
  align-self: flex-end;
}
.ai-msg {
  background: #d72638;
  color: #fff;
  align-self: flex-start;
}
.input-area {
  display: flex;
  padding: 10px;
  gap: 10px;
  background: #1e1e1e;
}
input[type="text"] {
  flex: 1;
  padding: 10px;
  border: none;
  border-radius: 5px;
  font-size: 16px;
}
button {
  background: #d72638;
  color: #fff;
  border: none;
  padding: 10px 15px;
  border-radius: 5px;
  cursor: pointer;
}