body{margin:0;overflow:hidden;background-color:#000}canvas{display:block}#instructions{position:absolute;top:20px;left:20px;color:#fff;font-family:Segoe UI,sans-serif;background:#0009;padding:15px;border-radius:8px;-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px);border-left:4px solid #ff3333;pointer-events:none}#f1-loader{position:fixed;top:0;left:0;width:100%;height:100%;background:#000;display:flex;flex-direction:column;justify-content:center;align-items:center;z-index:9999;transition:opacity .5s ease-out}.flag-container{display:grid;grid-template-columns:repeat(10,1fr);width:200px;height:100px;border:2px solid #fff}.flag-container div{width:20px;height:20px;animation:wave 1s infinite}.flag-container div:nth-child(2n){background-color:#fff}.flag-container div:nth-child(odd){background-color:#000}@keyframes wave{0%{transform:scale(0)}50%{transform:scale(1)}to{transform:scale(0)}}.loading-text{color:#fff;font-family:Segoe UI,Arial,sans-serif;font-weight:900;font-style:italic;font-size:2rem;letter-spacing:4px;text-transform:uppercase;text-shadow:0 0 10px rgba(255,255,255,.3);margin-top:20px}