:root{--bg:#f6f5f1;--panel:#ffffff;--ink:#20201d;--muted:#68665f;--line:#dedbd2;--accent:#27746b;--accent-strong:#19544e;--warn:#9b5c00;--danger:#9f2f24}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;letter-spacing:0}a{color:inherit;text-decoration:none}button,input,textarea{font:inherit}.shell{max-width:1180px;margin:0 auto;padding:28px}.topbar{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:24px}.brand{font-size:22px;font-weight:750}.muted{color:var(--muted)}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));grid-gap:16px;gap:16px}.book-card,.panel{background:var(--panel);border:1px solid var(--line);border-radius:8px;padding:18px}.book-card{display:grid;grid-gap:10px;gap:10px}.stack{display:grid;grid-gap:14px;gap:14px}.row{display:flex;flex-wrap:wrap;align-items:center;gap:10px}.status{min-height:28px;padding:4px 9px;border-radius:999px;background:#e7eeec;color:var(--accent-strong);font-size:13px;font-weight:650}.button,.status{display:inline-flex;align-items:center}.button{justify-content:center;min-height:38px;border:1px solid var(--accent);border-radius:6px;padding:8px 12px;background:var(--accent);color:white;cursor:pointer}.button.secondary{background:white;color:var(--accent-strong)}.button:disabled{opacity:.55;cursor:not-allowed}.field{display:grid;grid-gap:6px;gap:6px}.field span{color:var(--muted);font-size:13px;font-weight:650}input,textarea{width:100%;border:1px solid var(--line);border-radius:6px;padding:10px 11px;background:white;color:var(--ink)}textarea{min-height:280px;resize:vertical;font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;font-size:13px;line-height:1.55}.split{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(300px,.9fr);grid-gap:16px;gap:16px}.chapter{border-top:1px solid var(--line);padding-top:12px}.pre{white-space:pre-wrap;overflow-wrap:anywhere;max-height:360px;overflow:auto;border:1px solid var(--line);border-radius:6px;padding:12px;background:#fbfaf7}.login{min-height:100dvh;display:grid;place-items:center;padding:24px}.login .panel{width:min(420px,100%)}@media (max-width:820px){.shell{padding:18px}.split{grid-template-columns:1fr}}