:root{--bg:#f4f5f7;--surface:#fff;--text:#1c1e21;--muted:#6b7280;--border:#e2e4e9;--primary:#4f46e5;--primary-hover:#4338ca;--danger:#dc2626;--danger-bg:#fef2f2;--radius:10px;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;color:var(--text);background:var(--bg);font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;line-height:1.5}@media (prefers-color-scheme:dark){:root{--bg:#111318;--surface:#1b1e25;--text:#e8eaed;--muted:#9aa0a6;--border:#2d313a;--primary:#818cf8;--primary-hover:#a5b4fc;--danger:#f87171;--danger-bg:#2a1718;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}}*{box-sizing:border-box}body{min-height:100vh;margin:0}h1{margin:0;font-size:1.5rem}input,button{font:inherit}.container{max-width:640px;margin:0 auto;padding:48px 16px}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:24px}.auth{max-width:400px;margin:0 auto}.auth h1{margin-bottom:20px}.auth form{gap:16px;display:grid}.field{gap:6px;font-size:.9rem;display:grid}input:not([type=checkbox]){width:100%;color:var(--text);background:var(--bg);border:1px solid var(--border);border-radius:8px;padding:10px 12px}input:focus-visible{outline:2px solid var(--primary);outline-offset:1px}input[aria-invalid=true]{border-color:var(--danger)}.field-error{color:var(--danger)}.btn{color:var(--text);border:1px solid var(--border);cursor:pointer;white-space:nowrap;background:0 0;border-radius:8px;padding:10px 16px}.btn:hover:not(:disabled){border-color:var(--muted)}.btn--primary{color:#fff;background:var(--primary);border-color:var(--primary)}.btn--primary:hover:not(:disabled){background:var(--primary-hover);border-color:var(--primary-hover)}.btn:disabled{opacity:.6;cursor:not-allowed}.link{color:var(--primary);cursor:pointer;background:0 0;border:none;padding:0;text-decoration:underline}.icon-btn{color:var(--muted);cursor:pointer;background:0 0;border:none;border-radius:6px;padding:4px 8px}.icon-btn:hover{color:var(--text);background:var(--bg)}.icon-btn--danger:hover{color:var(--danger)}.alert{color:var(--danger);background:var(--danger-bg);border-radius:8px;justify-content:space-between;align-items:center;gap:8px;margin:0;padding:10px 12px;display:flex}.muted{color:var(--muted);margin:0;font-size:.9rem}.auth>.muted{text-align:center;margin-top:16px}.center{text-align:center;padding:24px 0}.app-header{justify-content:space-between;align-items:flex-start;gap:16px;margin-bottom:20px;display:flex}.add-form{gap:8px;margin-bottom:16px;display:flex}.todos{margin:8px 0 12px;padding:0;list-style:none}.todo{border-bottom:1px solid var(--border);align-items:center;gap:10px;padding:8px 4px;display:flex}.todo input[type=checkbox]{width:18px;height:18px;accent-color:var(--primary);cursor:pointer;flex-shrink:0}.todo__title{overflow-wrap:anywhere;flex:1;min-width:0}.todo__edit{flex:1;padding:4px 8px!important}.todo--done .todo__title{color:var(--muted);text-decoration:line-through}h2{margin:0 0 4px;font-size:1.15rem}h3{margin:0;font-size:.95rem}code,.mono{font-family:ui-monospace,Cascadia Code,Consolas,monospace}.tabs{border-bottom:1px solid var(--border);gap:4px;margin-bottom:20px;display:flex}.tab{color:var(--muted);border-bottom:2px solid #0000;margin-bottom:-1px;padding:8px 14px;text-decoration:none}.tab:hover{color:var(--text)}.tab--active{color:var(--text);border-bottom-color:var(--primary);font-weight:600}.stack{gap:20px;display:grid}.stack--tight{gap:10px}.copy-row{flex-wrap:wrap;gap:8px;display:flex}.copy-row input{flex:240px;min-width:0;font-size:.85rem}.btn--small{padding:4px 10px;font-size:.85rem}.btn--danger{color:var(--danger);border-color:var(--danger)}.btn--danger:hover:not(:disabled){background:var(--danger-bg);border-color:var(--danger)}.snippet{border:1px solid var(--border);border-radius:8px;overflow:hidden}.snippet__header{color:var(--muted);border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;gap:8px;padding:6px 6px 6px 12px;font-size:.85rem;display:flex}.snippet pre{background:var(--bg);margin:0;padding:12px;font-size:.8rem;overflow-x:auto}.tool-list{gap:10px;margin:0;padding:0;list-style:none;display:grid}.tool-list li{gap:2px;display:grid}.tool-list code{font-size:.85rem}