*{margin:0;padding:0;box-sizing:border-box}:root{font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;line-height:1.5;font-weight:400;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;-webkit-tap-highlight-color:transparent}html,body{height:100%;overflow:hidden}body{margin:0;min-width:320px}#root{height:100%}.game-container{min-height:100vh;min-height:100dvh;background:linear-gradient(135deg,#1a1a2e,#16213e);padding:8px;box-sizing:border-box;display:flex;flex-direction:column;user-select:none;-webkit-user-select:none;touch-action:none}.game-board{flex:1;display:flex;flex-direction:column;gap:16px;max-width:600px;margin:0 auto;width:100%}.game-header{display:flex;justify-content:space-between;align-items:center;padding:8px 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