.message-list{flex:1;overflow-y:auto;padding:20px;background:#f5f5f5;display:flex;flex-direction:column;gap:15px}.message{display:flex;gap:10px;animation:fadeIn .3s ease-in}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.message-avatar{width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:20px;flex-shrink:0}.user-message{flex-direction:row-reverse}.user-message .message-avatar{background:#667eea}.assistant-message .message-avatar{background:#764ba2}.message-content{max-width:70%;display:flex;flex-direction:column;gap:5px}.user-message .message-content{align-items:flex-end}.message-text{background:#fff;padding:12px 16px;border-radius:12px;word-wrap:break-word;box-shadow:0 2px 5px #0000001a;color:#333}.user-message .message-text{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff}.message-time{font-size:12px;color:#999;padding:0 5px}.loading{display:flex;gap:4px;padding:12px 20px}.loading .dot{animation:loading 1.4s infinite;opacity:0}.loading .dot:nth-child(2){animation-delay:.2s}.loading .dot:nth-child(3){animation-delay:.4s}@keyframes loading{0%,60%,to{opacity:0}30%{opacity:1}}.message-list::-webkit-scrollbar{width:6px}.message-list::-webkit-scrollbar-track{background:#f1f1f1}.message-list::-webkit-scrollbar-thumb{background:#888;border-radius:3px}.message-list::-webkit-scrollbar-thumb:hover{background:#555}.message-input{display:flex;gap:10px;padding:20px;background:#fff;border-top:1px solid #e0e0e0}.message-input textarea{flex:1;padding:12px;border:2px solid #e0e0e0;border-radius:12px;font-size:14px;font-family:inherit;resize:none;outline:none;transition:border-color .3s}.message-input textarea:focus{border-color:#667eea}.message-input textarea:disabled{background:#f5f5f5;cursor:not-allowed}.message-input button{padding:12px 30px;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none;border-radius:12px;font-size:16px;font-weight:600;cursor:pointer;transition:transform .2s,opacity .3s}.message-input button:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 4px 12px #667eea66}.message-input button:active:not(:disabled){transform:translateY(0)}.message-input button:disabled{opacity:.5;cursor:not-allowed}.chat-box{width:100%;max-width:800px;height:90vh;max-height:800px;background:#fff;border-radius:20px;box-shadow:0 20px 60px #0000004d;display:flex;flex-direction:column;overflow:hidden}.chat-header{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;padding:20px;text-align:center}.chat-header h1{margin:0;font-size:24px;font-weight:600}.chat-header p{margin:5px 0 0;font-size:14px;opacity:.9}.app{width:100%;height:100vh;display:flex;justify-content:center;align-items:center;background:linear-gradient(135deg,#667eea,#764ba2);padding:20px}:root{font-family:Inter,system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#ffffffde;background-color:#242424;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}*{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%;height:100vh;margin:0 auto;padding:0}