:root{--bg:#f4f2ed;--panel:#fffdf8;--ink:#1c1d1b;--muted:#6d706a;--line:#d9d2c3;--accent:#0f6b5f;--danger:#9f2f24;--code:#10201d}*{box-sizing:border-box}body{background:var(--bg);color:var(--ink);margin:0;font-family:ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}a{color:inherit;text-decoration:none}button,input,textarea{font:inherit}.shell{grid-template-columns:260px minmax(0,1fr);min-height:100vh;display:grid}.side{border-right:1px solid var(--line);background:#ebe6da;padding:28px 22px}.brand{letter-spacing:.16em;text-transform:uppercase;font-size:13px;font-weight:800}.nav{gap:8px;margin-top:32px;display:grid}.nav a,.nav button{color:var(--muted);cursor:pointer;text-align:left;background:0 0;border:1px solid #0000;border-radius:6px;padding:10px 12px}.nav a:hover,.nav button:hover{border-color:var(--line);color:var(--ink)}.main{min-width:0;padding:34px 42px 56px}.header{border-bottom:1px solid var(--line);margin-bottom:24px;padding-bottom:22px}.eyebrow{color:var(--accent);letter-spacing:.14em;text-transform:uppercase;font-size:12px;font-weight:800}h1{margin:8px 0 0;font-size:34px;line-height:1.1}.subtle{color:var(--muted);line-height:1.7}.grid{gap:14px;display:grid}.card{background:var(--panel);border:1px solid var(--line);border-radius:8px;padding:18px}.row{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:10px;display:flex}.meta{color:var(--muted);font-size:13px}.btn{border:1px solid var(--line);cursor:pointer;background:#fffaf0;border-radius:6px;align-items:center;gap:8px;min-height:38px;padding:8px 12px;display:inline-flex}.btn-primary{background:var(--accent);border-color:var(--accent);color:#fff}.btn-danger{background:var(--danger);border-color:var(--danger);color:#fff}.input,.textarea{border:1px solid var(--line);width:100%;color:var(--ink);background:#fffef9;border-radius:6px;padding:10px 12px}.textarea{resize:vertical;min-height:260px;font-family:SFMono-Regular,Consolas,monospace}.split{grid-template-columns:minmax(0,1.1fr) minmax(320px,.9fr);gap:18px;display:grid}.pre{background:var(--code);color:#e9fff8;white-space:pre-wrap;border-radius:8px;padding:14px;overflow:auto}.login{place-items:center;min-height:100vh;padding:24px;display:grid}.login form{width:100%;max-width:430px}@media (max-width:900px){.shell,.split{grid-template-columns:1fr}.side{border-bottom:1px solid var(--line);border-right:0}}