:root{font-family: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}a{font-weight:500;color:#646cff;text-decoration:inherit}a:hover{color:#535bf2}body{margin:0;display:flex;place-items:center;min-width:320px;min-height:100vh}h1{font-size:3.2em;line-height:1.1}button{border-radius:8px;border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:#1a1a1a;cursor:pointer;transition:border-color .25s}button:hover{border-color:#646cff}button:focus,button:focus-visible{outline:4px auto -webkit-focus-ring-color}@media (prefers-color-scheme: light){:root{color:#213547;background-color:#fff}a:hover{color:#747bff}button{background-color:#f9f9f9}}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Segoe 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li:before{content:"▶";position:absolute;left:0;color:#ff6b6b}.bouncing-ball-container{position:relative;border-radius:25px;overflow:hidden;box-shadow:0 25px 50px #0006,inset 0 1px #ffffff1a;border:1px solid rgba(255,255,255,.15);background:#00000026;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);animation:containerGlow 4s ease-in-out infinite alternate}@keyframes containerGlow{0%{box-shadow:0 25px 50px #0006,inset 0 1px #ffffff1a}to{box-shadow:0 30px 60px #00000080,inset 0 1px #fff3,0 0 30px #4a90e24d}}.game-canvas{display:block;border-radius:18px}.controls-panel{position:absolute;top:20px;right:20px;background:#ffffff0d;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-radius:20px;padding:25px;min-width:280px;border:1px solid rgba(255,255,255,.1);box-shadow:0 8px 32px #0000004d,inset 0 1px #ffffff1a;animation:float 6s ease-in-out infinite;transition:all .3s ease}.controls-panel:hover{background:#ffffff14;box-shadow:0 12px 40px #0006,inset 0 1px 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