* { box-sizing: border-box; margin: 0; padding: 0; font-family: 'Arial', sans-serif; }
body { background-color: #f0f2f5; display: flex; justify-content: center; align-items: center; height: 100vh; direction: rtl; }
.chat-container { background: white; width: 90%; max-width: 500px; border-radius: 10px; box-shadow: 0 4px 10px rgba(0,0,0,0.1); display: flex; flex-direction: column; height: 80vh; }
h1 { text-align: center; padding: 15px; background: #007bff; color: white; border-radius: 10px 10px 0 0; font-size: 20px; }
.chat-box { flex: 1; padding: 15px; overflow-y: auto; display: flex; flex-direction: column; gap: 10px; }
.message { padding: 10px 15px; border-radius: 15px; max-width: 80%; line-height: 1.5; white-space: pre-wrap; }
.user-msg { background: #007bff; color: white; align-self: flex-end; border-bottom-right-radius: 0; }
.ai-msg { background: #e9ecef; color: #333; align-self: flex-start; border-bottom-left-radius: 0; }
.input-area { display: flex; padding: 15px; border-top: 1px solid #ddd; gap: 10px; }
input { flex: 1; padding: 10px; border: 1px solid #ccc; border-radius: 5px; outline: none; }
button { padding: 10px 20px; background: #007bff; color: white; border: none; border-radius: 5px; cursor: pointer; }
button:hover { background: #0056b3; }