.app-wrapper{display:flex;width:100%;height:100%}#askBtn{background-color:#10b981;color:#fff}#resetBtn{background-color:#ef4444;color:#fff}*{box-sizing:border-box;margin:0;padding:0}html,body{width:100%;height:100%}body{font-family:Arial,sans-serif;background-color:#f3f4f6;color:#1f2937;height:100vh;display:flex}.app-wrapper{display:flex;flex-direction:row;width:100vw;height:100vh}.sidebar{width:200px;background-color:#1f2937;color:#fff;padding:10px;overflow-y:auto}.session-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px}.session-header h2{font-size:1rem}#newSessionBtn{background-color:#10b981;color:#fff;border:none;padding:4px 8px;border-radius:4px;cursor:pointer}.session-list{list-style:none;padding:0}.session-list li{padding:8px;border-radius:4px;background-color:#374151;margin-bottom:6px;cursor:pointer}.session-list li.active{background-color:#10b981;color:#111827;font-weight:700}.main-chat{flex:1;display:flex;flex-direction:column;padding:20px}.app-header{text-align:center;margin-bottom:10px}.app-header h1{font-size:1.5rem}#activeSessionName{font-size:.9rem;color:#6b7280;text-align:center;margin-bottom:10px}.chat-box{flex:1;background-color:#fff;border:1px solid #d1d5db;border-radius:6px;padding:15px;overflow-y:auto;margin-bottom:15px}.message{margin-bottom:10px;padding:10px;border-radius:6px;max-width:75%}.message.user{background-color:#3b82f6;color:#fff;margin-left:auto;text-align:right}.message.ai{background-color:#e5e7eb;color:#111827;margin-right:auto;text-align:left}.chat-input-section{display:flex;flex-direction:column;gap:10px}#questionInput{width:100%;min-height:60px;padding:10px;border-radius:4px;border:1px solid #d1d5db;resize:vertical;font-size:1rem}.chat-buttons{display:flex;justify-content:flex-end;gap:10px}button{padding:8px 16px;border:none;border-radius:4px;cursor:pointer;font-weight:700}.btn-ask{background-color:#10b981;color:#fff}.btn-clear{background-color:#ef4444;color:#fff}.btn-export{background-color:#3b82f6;color:#fff}.typing-indicator{font-style:italic;font-size:.9rem;color:#6b7280;text-align:right}.usage-info{font-size:.85rem;color:#4b5563;text-align:center;margin-bottom:10px}