body { font-family: Arial, sans-serif; background: #f0f2f5; margin:0; padding:0; }
header { display:flex; justify-content: space-between; padding:20px; background:#333; color:#fff; }
header a { color:#fff; margin-left:10px; text-decoration:none; }
.summary { display:flex; gap:10px; padding:20px; }
.card { background:#fff; padding:20px; flex:1; border-radius:8px; box-shadow:0 2px 5px rgba(0,0,0,0.1); }
#chat-box { height:400px; overflow-y:auto; border:1px solid #ccc; padding:10px; background:#fff; margin:10px 0; }
.user { color: blue; margin:5px 0; }
.bot { color: green; margin:5px 0; }
input { padding:10px; width:70%; border-radius:5px; border:1px solid #ccc; }
button { padding:10px 15px; border:none; border-radius:5px; background:#4caf50; color:#fff; cursor:pointer; }
button:hover { background:#45a049; }