:root{--bg:#f6f7f9;--card:#fff;--ink:#0f172a;--muted:#5b6475;--line:#e3e6ec;--accent:#2563eb;--good:#15803d;--bad:#b91c1c;color:var(--ink);background:var(--bg);font-family:-apple-system,SF Pro Text,Inter,system-ui,sans-serif}@media (prefers-color-scheme:dark){:root{--bg:#0b0f17;--card:#121826;--ink:#e8ecf3;--muted:#9aa4b6;--line:#232c3d;--accent:#5b8cff;--good:#4ade80;--bad:#f87171}}body{background:var(--bg);margin:0}header{max-width:760px;margin:0 auto;padding:32px 16px 8px}h1{margin:0;font-size:26px;font-weight:650}h1 span{color:var(--muted);font-weight:500}.network{color:var(--muted);margin:4px 0 0;font-size:14px}main{gap:16px;max-width:760px;margin:0 auto;padding:8px 16px 48px;display:grid}.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:20px}h2{margin:0 0 8px;font-size:17px}.muted{color:var(--muted);margin:0 0 12px;font-size:14px}.row{flex-wrap:wrap;align-items:center;gap:8px;display:flex}button{font:inherit;border:1px solid var(--accent);background:var(--accent);color:#fff;cursor:pointer;border-radius:10px;padding:9px 16px;font-size:15px}button.secondary{color:var(--accent);background:0 0}button:disabled{opacity:.45;cursor:default}.status{margin:10px 0 0;font-size:14px}.good{color:var(--good)}.bad{color:var(--bad)}dl{grid-template-columns:170px 1fr;gap:6px 12px;margin:0;font-size:14px;display:grid}dt{color:var(--muted)}dd{word-break:break-all;margin:0;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:13px}ol{margin:0 0 14px;padding-left:22px}li{margin:6px 0;font-size:15px}li .why{color:var(--muted);margin-top:2px;font-size:13px;display:block}li.done{color:var(--good)}li.next{font-weight:600}pre{white-space:pre-wrap;word-break:break-all;color:var(--muted);max-height:260px;margin:0;font-size:12px;overflow:auto}code.copy{user-select:all;border:1px solid var(--line);border-radius:6px;padding:2px 6px}