:root{font-family:Inter,system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#ffffffde;background-color:#242424;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{margin:0;padding:0;display:flex;place-items:center;min-width:320px;min-height:100vh;background:#1a1a1a;overflow:hidden}#app{position:relative;width:100vw;height:100vh;display:flex;justify-content:center;align-items:center}#webcam{position:absolute;visibility:hidden;width:auto;height:auto}#output_canvas{position:absolute;top:0;left:0;width:100%;height:100%;object-fit:cover;transform:scaleX(-1)}#ui-layer{position:absolute;top:0;left:0;width:100%;height:100%;pointer-events:none;display:flex;flex-direction:column;justify-content:space-between;padding:20px;box-sizing:border-box}#title{font-size:3rem;font-weight:900;color:#af0;text-shadow:2px 2px 0 #020000;margin:0;position:absolute;top:20px;left:50%;transform:translate(-50%)}#score-board{font-size:2rem;font-weight:700;color:#af0;text-shadow:2px 2px 0 #020000;position:absolute;bottom:40px;left:40px}#game-over{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);text-align:center;background:#000c;padding:40px;border-radius:20px;border:4px solid #aaff00;pointer-events:auto}.hidden{display:none}#start-btn{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);padding:20px 40px;font-size:1.5rem;font-weight:700;background-color:#af0;color:#000;border:none;border-radius:10px;cursor:pointer;pointer-events:auto;box-shadow:0 4px 15px #aaff0080;transition:transform .2s}#start-btn:hover{transform:translate(-50%,-50%) scale(1.05)}