: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}body{margin:0;display:flex;place-items:center;min-width:320px;min-height:100vh}#app{width:100%;max-width:800px;margin:0 auto;padding:2rem}.screen{min-height:400px;display:flex;align-items:center;justify-content:center}.landing-screen{text-align:center}.game-title{font-size:4em;line-height:1.1;margin:.5em 0 .3em;color:#4caf50}.game-tagline{font-size:1.2em;color:#888;margin:0 0 2em}.primary-button{border-radius:8px;border:1px solid transparent;padding:.8em 2em;font-size:1.2em;font-weight:600;font-family:inherit;background-color:#4caf50;color:#fff;cursor:pointer;transition:background-color .25s}.primary-button:hover{background-color:#45a049}.primary-button:focus,.primary-button:focus-visible{outline:4px auto -webkit-focus-ring-color}.level-select-screen{background-color:#1a1a1a}.level-select-content{text-align:center;width:100%}.level-select-content h2{font-size:2em;margin-bottom:1.5em;color:#4caf50}.level-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(120px,1fr));gap:1em;max-width:500px;margin:0 auto}.level-item{border-radius:8px;border:2px solid #4CAF50;padding:1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:#2a2a2a;color:#4caf50;cursor:pointer;transition:all .25s}.level-item:hover{background-color:#4caf50;color:#fff;transform:scale(1.05)}.game-screen{background-color:#2a2a2a}.game-content{width:100%}.game-header{display:flex;align-items:center;margin-bottom:2em;gap:1em}.game-header h3{font-size:1.5em;margin:0;color:#4caf50;flex:1}.game-stats{font-size:1em;color:#888}.secondary-button{border-radius:8px;border:1px solid #666;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:#333;color:#fff;cursor:pointer;transition:all .25s}.secondary-button:hover{background-color:#444;border-color:#888}.game-area{border:2px solid #4CAF50;border-radius:8px;min-height:500px;background-color:#1a1a1a;display:flex;align-items:center;justify-content:center;padding:1em;position:relative}.game-area canvas{display:block;max-width:100%;max-height:100%}.game-over-overlay{display:none;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);background:#000c;color:#fff;padding:20px;border-radius:8px;text-align:center;z-index:10}.game-over-overlay h2{margin:0 0 10px}.game-over-overlay p{margin:0}.placeholder-text{color:#888;font-size:1.5em}@media(prefers-color-scheme:light){:root{color:#213547;background-color:#fff}.landing-screen{background-color:#f5f5f5}.level-select-screen{background-color:#fff}.level-item{background-color:#f5f5f5}.level-item:hover{background-color:#4caf50;color:#fff}.game-screen{background-color:#f5f5f5}.game-area{background-color:#fff}.secondary-button{background-color:#e0e0e0;color:#213547}.secondary-button:hover{background-color:#d0d0d0}}