:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light dark;font-family:system-ui,-apple-system,Segoe UI,sans-serif}@media (prefers-color-scheme:dark){:root{--lightningcss-light: ;--lightningcss-dark:initial}}*{box-sizing:border-box}body{color:#eee;background:#1b1b1f;min-height:100vh;margin:0}.page{max-width:720px;margin:0 auto;padding:2rem 1.5rem}.board-container{width:min(480px,100%);margin:0 auto}.card{background:#26262c;border-radius:12px;margin-bottom:1rem;padding:1.25rem}.btn{cursor:pointer;color:#fff;background:#4a7dfc;border:none;border-radius:8px;padding:.6rem 1.25rem;font-size:1rem}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-secondary{background:#3a3a42}.rating-badge{text-transform:capitalize;border-radius:999px;padding:.2rem .6rem;font-size:.8rem;font-weight:600;display:inline-block}.rating-mistake,.rating-blunder{color:#ffb4b4;background:#7a2b2b}.rating-inaccuracy{color:#ffdca0;background:#7a5b2b}.feedback-banner{border-radius:8px;margin-bottom:1rem;padding:.75rem 1rem;font-weight:600}.feedback-correct{color:#b8f5c9;background:#1f5c33}.feedback-incorrect{color:#ffc2c6;background:#6b1f24}