body,html{margin:0;padding:0;height:100%;width:100%;overflow:hidden;font-family:Arial,sans-serif;background-color:#282c34;display:flex;flex-direction:column;align-items:center}#fileInput{position:relative;z-index:2;font-size:18px;padding:10px 20px;margin-top:20px;width:30%;background-color:#61dafb;border:none;border-radius:8px;cursor:pointer;color:#282c34;font-weight:700;margin-bottom:20px;transition:background-color .3s ease}#fileInput:hover{background-color:#21a1f1}canvas{position:absolute;top:0;left:0;z-index:1;width:100vw;height:100vh;display:block}.progress-bar-container{display:none;position:relative;z-index:3;background:rgba(0,0,0,.6);padding:10px;border-radius:12px}#labelLoading{font-size:24px;color:#fff;font-weight:700;margin:0;text-align:center;animation:fade 1s infinite alternate}@keyframes fade{0%{opacity:1}to{opacity:.5}}