: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:dark;color:#ffffffde;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;-webkit-tap-highlight-color:transparent}*{margin:0;padding:0;box-sizing:border-box}html,body{width:100%;height:100%}body{margin:0;display:flex;min-width:320px}#root{width:100%;display:flex;flex-direction:column}a{color:#667eea;text-decoration:none;transition:color .3s ease}a:hover{color:#764ba2}button{font-family:inherit;font-size:inherit}input{font-family:inherit}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:#0000001a}::-webkit-scrollbar-thumb{background:#667eea80;border-radius:4px}::-webkit-scrollbar-thumb:hover{background:#667eeacc}h1{font-size:3.2em;line-height:1.1}button{border-radius:8px;border:1px solid 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#0000004d}.chat-send-btn:disabled{opacity:.4;cursor:not-allowed}@keyframes fadeInDown{0%{opacity:0;transform:translateY(-20px)}to{opacity:1;transform:translateY(0)}}@keyframes 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