:root{--bg:#14151a;--surface:#1e2027;--surface-2:#262932;--border:#33363f;--text:#e6e6eb;--text-dim:#9a9daa;--accent:#7aa2f7;--known:#4ade80;--relearn:#fb923c;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased;font:16px/1.5 system-ui,Segoe UI,Roboto,sans-serif}body{margin:0;overflow-x:hidden}#root{max-width:1400px;margin:0 auto;padding:0 32px 60px}h1{letter-spacing:.3px;margin:0;font-size:20px;font-weight:600}button{font:inherit;color:inherit;cursor:pointer}kbd{background:var(--surface-2);border:1px solid var(--border);border-bottom-width:2px;border-radius:4px;padding:1px 6px;font-family:ui-monospace,monospace;font-size:13px}select{font:inherit;color:var(--text);background:var(--surface);border:1px solid var(--border);border-radius:6px;padding:5px 8px}header{border-bottom:1px solid var(--border);align-items:center;gap:16px;margin-bottom:20px;padding:18px 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