* { margin: 0; padding: 0; box-sizing: border-box; } body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); color: #333; min-height: 100vh; padding: 20px; } header { text-align: center; margin-bottom: 40px; color: white; text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3); } header h1 { font-size: 3em; margin-bottom: 10px; font-weight: 700; } main { max-width: 1200px; margin: 0 auto; display: grid; grid-template-columns: 1fr 1fr; gap: 30px; } section { background: white; border-radius: 15px; padding: 30px; box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2); } section h2 { color: #667eea; margin-bottom: 20px; font-size: 1.8em; border-bottom: 3px solid #667eea; padding-bottom: 10px; } .books ul { list-style: none; } .books li { margin: 12px 0; padding: 12px; background: #f8f9ff; border-left: 4px solid #667eea; border-radius: 5px; transition: all 0.3s ease; } .books li:hover { background: #f0f2ff; transform: translateX(5px); } .books a { text-decoration: none; color: #667eea; font-weight: 600; font-size: 1.1em; transition: color 0.3s ease; } .books a:hover { color: #764ba2; } .chat { display: flex; flex-direction: column; } #chat-window { display: flex; flex-direction: column; height: 500px; background: #f8f9ff; border-radius: 10px; overflow: hidden; } #chat-output { flex: 1; overflow-y: auto; padding: 15px; display: flex; flex-direction: column; gap: 10px; } .message { padding: 10px 15px; border-radius: 10px; max-width: 80%; word-wrap: break-word; } .user-message { align-self: flex-end; background: #667eea; color: white; border-bottom-right-radius: 0; } .ai-message { align-self: flex-start; background: #e8eaf6; color: #333; border-bottom-left-radius: 0; } #chat-input { border: none; padding: 12px; font-size: 1em; border-top: 1px solid #ddd; font-family: inherit; } #chat-input:focus { outline: none; background: #f0f2ff; } #send-btn { padding: 10px 20px; background: #667eea; color: white; border: none; cursor: pointer; font-weight: 600; transition: background 0.3s ease; } #send-btn:hover { background: #764ba2; } #send-btn:active { background: #5568d3; } @media (max-width: 768px) { main { grid-template-columns: 1fr; } header h1 { font-size: 2em; } #chat-window { height: 400px; } .message { max-width: 100%; } }