.container{max-width:800px;margin:0 auto;padding:2rem;text-align:left}.app-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:3rem;border-bottom:1px solid #444;padding-bottom:1rem}.app-header h1{font-size:1.5rem;margin:0}.btn{padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;cursor:pointer;transition:border-color .25s;border-radius:8px;border:1px solid transparent}.btn-primary{background-color:#646cff;color:#fff}.btn-primary:hover{background-color:#535bf2}.btn-secondary{background-color:#1a1a1a;border:1px solid #444}.btn-secondary:hover{border-color:#646cff}.game-list ul{list-style:none;padding:0}.game-list li{margin:1rem 0}.game-link{display:block;padding:1rem;background:#1a1a1a;border-radius:8px;text-decoration:none;color:inherit;border:1px solid transparent;transition:border-color .25s}.game-link:hover{border-color:#646cff}.back-link{color:#888;text-decoration:none}.back-link:hover{color:#fff}.placeholder-board{height:400px;background:#1a1a1a;display:flex;justify-content:center;align-items:center;border-radius:12px;border:1px dashed #444}: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;display:flex;place-items:center;min-width:320px;min-height:100vh}h1{font-size:3.2em;line-height:1.1}#root{max-width:1280px;margin:0 auto;padding:2rem;text-align:center}