:root{--bg:#f5f6f8;--panel:#fff;--text:#1c2230;--muted:#5c6577;--border:#dde2ea;--leader:#15803d;--follower:#5b6b82;--candidate:#c26a06;--down:#c62828;--accent:#2563eb;--shadow:0 1px 2px #0000000f;color:var(--text);background:var(--bg);font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;line-height:1.45}@media (prefers-color-scheme:dark){:root{--bg:#0e1117;--panel:#161b24;--text:#e5e9f0;--muted:#9aa4b5;--border:#2a313d;--leader:#22a55a;--follower:#7b8aa1;--candidate:#e08a1e;--down:#e5484d;--accent:#5b8def;--shadow:none}}*{box-sizing:border-box}body{margin:0}.page{max-width:1140px;margin:0 auto;padding:24px 16px 40px}.top{flex-wrap:wrap;justify-content:space-between;align-items:flex-end;gap:12px;margin-bottom:20px;display:flex}h1{letter-spacing:-.01em;margin:0;font-size:1.6rem}.subtitle{color:var(--muted);margin:2px 0 0}.summary{flex-wrap:wrap;gap:8px;display:flex}.pill{border:1px solid var(--border);background:var(--panel);font-variant-numeric:tabular-nums;border-radius:999px;padding:3px 11px;font-size:.85rem}.pill--ok{color:var(--leader);border-color:currentColor}.pill--bad{color:var(--down);border-color:currentColor}.banner{background:var(--panel);border:1px solid var(--border);color:var(--muted);border-radius:8px;padding:10px 14px}.banner--error{color:var(--down);border-color:currentColor}.nodes{grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px;margin-bottom:20px;display:grid}.node{--role:var(--follower);background:var(--panel);border:1px solid var(--border);border-top:4px solid var(--role);box-shadow:var(--shadow);border-radius:10px;flex-direction:column;gap:10px;padding:14px 16px;transition:border-color .3s;display:flex}.node--leader{--role:var(--leader)}.node--candidate{--role:var(--candidate)}.node--isolated,.node--unreachable{--role:var(--down)}.node__head{justify-content:space-between;align-items:center;display:flex}.node__head h2{margin:0;font-size:1.1rem}.badge{background:var(--role);color:#fff;border-radius:6px;padding:2px 8px;font-size:.8rem;font-weight:600}.node__addr,.node__down{color:var(--muted);margin:0;font-size:.85rem}.node__addr{font-family:ui-monospace,SFMono-Regular,Menlo,monospace}.stats{grid-template-columns:1fr 1fr;gap:8px;margin:0;display:grid}.stats div{background:var(--bg);border-radius:6px;padding:6px 9px}.stats dt{color:var(--muted);font-size:.75rem}.stats dd{font-variant-numeric:tabular-nums;margin:0;font-size:1.15rem}.progress{background:var(--bg);border-radius:6px;height:24px;position:relative;overflow:hidden}.progress__bar{background:color-mix(in srgb, var(--leader) 30%, transparent);transition:width .3s;position:absolute;inset:0 auto 0 0}.progress__label{padding:0 9px;font-size:.78rem;line-height:24px;position:relative}button{font:inherit;border:1px solid var(--border);background:var(--panel);color:var(--text);cursor:pointer;border-radius:8px;padding:7px 12px;font-size:.92rem}button:hover:not(:disabled){border-color:var(--accent)}button:disabled{opacity:.5;cursor:not-allowed}button.primary{background:var(--accent);border-color:var(--accent);color:#fff}.columns{grid-template-columns:minmax(0,3fr) minmax(0,2fr);gap:16px;display:grid}@media (width<=820px){.columns{grid-template-columns:1fr}}.panel{background:var(--panel);border:1px solid var(--border);box-shadow:var(--shadow);border-radius:10px;min-width:0;padding:14px 16px}.panel h2{margin:0 0 12px;font-size:1.05rem}.fields{grid-template-columns:1fr 2fr;gap:10px;display:grid}.fields label{color:var(--muted);flex-direction:column;gap:4px;font-size:.85rem;display:flex}input{font:inherit;color:var(--text);background:var(--bg);border:1px solid var(--border);border-radius:7px;padding:7px 9px}input:focus{outline:2px solid var(--accent);outline-offset:-1px}.check{color:var(--muted);align-items:center;gap:8px;margin:10px 0;font-size:.85rem;display:flex}.actions{flex-wrap:wrap;gap:8px;display:flex}.muted{color:var(--muted)}.small{font-size:.82rem}.result{border-left:4px solid var(--follower);background:var(--bg);border-radius:6px;margin-top:12px;padding:8px 12px}.result--ok{border-left-color:var(--leader)}.result--warn{border-left-color:var(--candidate)}.result--bad{border-left-color:var(--down)}.result__line,.result p{margin:0 0 4px}pre{white-space:pre-wrap;word-break:break-word;margin:6px 0 0;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.8rem}.events{max-height:360px;margin:0;padding:0;list-style:none;overflow-y:auto}.event{border-left:3px solid var(--border);margin-bottom:6px;padding:4px 0 4px 10px;font-size:.88rem}.event time{color:var(--muted);margin-right:4px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.8rem}.event--success{border-left-color:var(--leader)}.event--warn{border-left-color:var(--candidate)}.event--error{border-left-color:var(--down)}.footer{color:var(--muted);margin-top:24px;font-size:.82rem}