.app{display:flex;flex-direction:column;height:100vh;background:linear-gradient(135deg,#667eea,#764ba2)}.header{background:#fffffff2;padding:1.5rem 2rem;box-shadow:0 2px 10px #0000001a;display:flex;justify-content:space-between;align-items:center}.header-content h1{margin:0;font-size:1.8rem;background:linear-gradient(135deg,#667eea,#764ba2);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.header-content p{margin:.25rem 0 0;color:#666;font-size:.9rem}.reset-button{padding:.5rem 1rem;background:#667eea;color:#fff;border:none;border-radius:6px;cursor:pointer;font-size:.9rem;transition:background .3s}.reset-button:hover{background:#5568d3}.chat-container{flex:1;display:flex;flex-direction:column;max-width:900px;width:100%;margin:2rem auto;background:#fff;border-radius:12px;box-shadow:0 10px 40px #0000001a;overflow:hidden}.messages{flex:1;overflow-y:auto;padding:2rem;display:flex;flex-direction:column;gap:1rem}.message{display:flex;gap:1rem;align-items:flex-start;animation:fadeIn .3s ease-in}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.user-message{flex-direction:row-reverse}.message-avatar{font-size:2rem;min-width:40px;height:40px;display:flex;align-items:center;justify-content:center;background:#f0f0f0;border-radius:50%}.user-message .message-avatar{background:linear-gradient(135deg,#667eea,#764ba2)}.message-content{background:#f5f5f5;padding:1rem 1.25rem;border-radius:12px;max-width:70%;text-align:left;line-height:1.6;word-wrap:break-word}.user-message .message-content{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff}.assistant-message .message-content{background:#f0f0f0}.message-content.loading{display:flex;gap:.5rem;padding:1rem}.message-content.loading span{width:8px;height:8px;background:#667eea;border-radius:50%;animation:bounce 1.4s infinite ease-in-out}.message-content.loading span:nth-child(1){animation-delay:-.32s}.message-content.loading span:nth-child(2){animation-delay:-.16s}@keyframes bounce{0%,80%,to{transform:scale(0)}40%{transform:scale(1)}}.error-message{background:#fee;color:#c33;padding:1rem;margin:0 2rem;border-radius:8px;border-left:4px solid #c33}.input-form{display:flex;gap:1rem;padding:1.5rem 2rem;background:#fafafa;border-top:1px solid #eee}.message-input{flex:1;padding:.875rem 1.25rem;border:2px solid #e0e0e0;border-radius:8px;font-size:1rem;transition:border-color .3s;outline:none}.message-input:focus{border-color:#667eea}.message-input:disabled{background:#f5f5f5;cursor:not-allowed}.send-button{padding:.875rem 2rem;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none;border-radius:8px;font-size:1rem;font-weight:600;cursor:pointer;transition:transform .2s,box-shadow .2s}.send-button:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 4px 12px #667eea66}.send-button:disabled{opacity:.5;cursor:not-allowed;transform:none}.footer{background:#fffffff2;padding:1rem;text-align:center;color:#666;font-size:.85rem}.messages::-webkit-scrollbar{width:8px}.messages::-webkit-scrollbar-track{background:#f1f1f1}.messages::-webkit-scrollbar-thumb{background:#888;border-radius:4px}.messages::-webkit-scrollbar-thumb:hover{background:#555}@media (max-width: 768px){.header{flex-direction:column;gap:1rem;text-align:center}.chat-container{margin:1rem;border-radius:8px}.message-content{max-width:85%}.input-form{padding:1rem}.send-button{padding:.875rem 1.25rem}}:root{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#213547;background-color:#fff;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;-webkit-text-size-adjust:100%}*{margin:0;padding:0;box-sizing:border-box}body{margin:0;display:flex;place-items:center;min-width:320px;min-height:100vh}#root{width:100%;margin:0 auto;text-align:center}