: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:#172b4d;background-color:#fafbfc;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}*{box-sizing:border-box}body{margin:0;padding:0;min-width:320px;min-height:100vh}h1,h2,h3,h4,h5,h6,p{margin:0}.chat-message{margin:12px 0;padding:12px 16px;border-radius:8px;max-width:80%;word-wrap:break-word;animation:fadeIn .3s ease-in}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.user-message{background-color:#0052cc;color:#fff;margin-left:auto;text-align:right}.assistant-message{background-color:#f4f5f7;color:#172b4d;margin-right:auto;text-align:left}.message-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:6px;font-size:.85rem;opacity:.8}.message-role{font-weight:600}.message-time{font-size:.75rem}.message-content{line-height:1.5;white-space:pre-wrap}.chat-input-container{display:flex;gap:12px;padding:16px;background-color:#fff;border-top:1px solid #dfe1e6}.chat-input{flex:1;padding:12px;border:2px solid #dfe1e6;border-radius:4px;font-size:14px;font-family:inherit;resize:none;transition:border-color .2s}.chat-input:focus{outline:none;border-color:#0052cc}.chat-input:disabled{background-color:#f4f5f7;cursor:not-allowed}.send-button{padding:12px 24px;background-color:#0052cc;color:#fff;border:none;border-radius:4px;font-size:14px;font-weight:600;cursor:pointer;transition:background-color .2s;white-space:nowrap}.send-button:hover:not(:disabled){background-color:#0747a6}.send-button:disabled{background-color:#b3d4ff;cursor:not-allowed}.model-selector-container{display:flex;align-items:center;gap:12px;padding:12px 16px;background-color:#f4f5f7;border-bottom:1px solid #dfe1e6}.model-label{font-weight:600;font-size:14px;color:#172b4d;white-space:nowrap}.model-select{flex:1;padding:8px 12px;border:2px solid #dfe1e6;border-radius:4px;font-size:14px;background-color:#fff;cursor:pointer;transition:border-color .2s}.model-select:focus{outline:none;border-color:#0052cc}.model-select:disabled{background-color:#f4f5f7;cursor:not-allowed}.chat-container{display:flex;flex-direction:column;height:100vh;max-width:1200px;margin:0 auto;background-color:#fff;box-shadow:0 0 20px #0000001a}.chat-header{padding:24px 16px;background:linear-gradient(135deg,#0052cc,#0747a6);color:#fff;text-align:center;border-bottom:1px solid #dfe1e6}.chat-header h1{margin:0;font-size:28px;font-weight:700}.chat-subtitle{margin:8px 0 0;font-size:14px;opacity:.9}.messages-container{flex:1;overflow-y:auto;padding:16px;background-color:#fafbfc;display:flex;flex-direction:column}.empty-state{flex:1;display:flex;align-items:center;justify-content:center;color:#8993a4;font-size:16px}.loading-indicator{display:flex;align-items:center;gap:8px;padding:12px 16px;margin:12px auto 12px 0;background-color:#f4f5f7;border-radius:8px;max-width:80%;color:#172b4d;font-size:14px}.loading-dots{animation:blink 1.4s infinite}@keyframes blink{0%,20%{opacity:.2}40%{opacity:1}to{opacity:.2}}.messages-container::-webkit-scrollbar{width:8px}.messages-container::-webkit-scrollbar-track{background:#f4f5f7}.messages-container::-webkit-scrollbar-thumb{background:#dfe1e6;border-radius:4px}.messages-container::-webkit-scrollbar-thumb:hover{background:#c1c7d0}#root{width:100%;height:100vh;margin:0;padding:0}