*{margin:0;padding:0;box-sizing:border-box}html,body,#root{width:100%;height:100%;overflow:hidden}body{font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;background:#0a0a0a;color:#fff}.metahumano-app{width:100%;height:100vh;display:flex;flex-direction:column;position:relative}.app-header{padding:15px 20px;background:#0000004d;border-bottom:1px solid rgba(255,255,255,.1);text-align:center;z-index:100}.app-header h1{font-size:1.5rem;font-weight:600;color:#00d4ff;text-shadow:0 0 10px rgba(0,212,255,.5)}.app-header p{font-size:.85rem;color:#aaa;margin-top:5px}.avatar-container{flex:1;position:relative;display:flex;justify-content:center;align-items:center;min-height:300px}#avatar-root{width:100%;height:100%;position:absolute;top:0;left:0}#avatar-root canvas{image-rendering:-webkit-optimize-contrast;image-rendering:crisp-edges}.loading-message{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);text-align:center;z-index:10}.loading-message 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