body{background-color:#0b0c10;color:#c5c6c7;user-select:none;touch-action:none;overflow:hidden;height:100dvh;display:flex;flex-direction:column;align-items:center;justify-content:center;margin:0;padding:10px;box-sizing:border-box}.header-title{flex-shrink:0;text-align:center;margin-bottom:10px}#game-container{width:100%;height:100%;max-width:500px;max-height:900px;position:relative;box-shadow:0 0 20px rgba(102,252,241,.2);border:2px solid #45a29e;border-radius:8px;overflow:hidden;background:radial-gradient(circle at center,#1f2833 0,#0b0c10 100%)}canvas{display:block;width:100%;height:100%;object-fit:cover}#ui-layer{position:absolute;top:0;left:0;width:100%;height:100%;pointer-events:none}#score-display{position:absolute;top:15px;left:15px;font-size:24px;font-weight:700;color:#66fcf1;text-shadow:2px 2px 4px #000}#best-score-display{position:absolute;top:15px;right:15px;font-size:24px;font-weight:700;color:#f0ad4e;text-shadow:2px 2px 4px #000}#status-display{position:absolute;top:50px;left:15px;font-size:16px;color:#fff}#game-over-screen{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);text-align:center;background:rgba(11,12,16,.9);padding:30px;border:2px solid #45a29e;border-radius:10px;pointer-events:auto;display:none}.text-neon{color:#66fcf1}.btn-neon{background-color:transparent;color:#66fcf1;border:1px solid #66fcf1;transition:all .3s ease}.btn-neon:hover{background-color:#66fcf1;color:#0b0c10}