#chat-box {
  max-width: 420px;
  margin: 20px auto;
  padding: 12px;
  border: 1px solid #e0e0e0;
  border-radius: 12px;
  display: flex;
  flex-direction: column;
  height: 520px;
  background: #fff;
  box-shadow: 0 6px 18px rgba(0,0,0,0.04);
  font-family: Arial, sans-serif;
}

#chat-header {
  font-size: 18px;
  text-align: center;
  color: #2e7d32; /* Yuva green */
  font-weight: 700;
  margin-bottom: 8px;
}

#messages {
  flex: 1;
  overflow-y: auto;
  padding: 8px;
  display: flex;
  flex-direction: column;
}

.user-msg, .bot-msg {
  margin: 6px 0;
  padding: 8px;
  border-radius: 10px;
  max-width: 78%;
}

.user-msg {
  align-self: flex-end;
  background: #d1e7ff;
  text-align: right;
}

.bot-msg {
  align-self: flex-start;
  background: #f4f6f8;
  border-left: 4px solid #2e7d32;
}

.label {
  font-size: 11px;
  opacity: 0.8;
  margin-bottom: 4px;
}

.text {
  white-space: pre-wrap;
  font-size: 14px;
}

/* typing cursor */
.typing::after {
  content: "|";
  margin-left: 2px;
  animation: blink 1s steps(1) infinite;
}
@keyframes blink { 0%,50% {opacity:1;} 50.01%,100% {opacity:0;} }

#input-area { display:flex; gap:8px; margin-top:8px; }
#user-input { flex:1; padding:9px; border-radius:8px; border:1px solid #ccc; }
#send-button { padding:8px 12px; border-radius:8px; border:none; background:#2e7d32; color:#fff; cursor:pointer; }
#send-button:hover { opacity:0.95; }