:root{--bg: #e8edf2;--panel: #f6f8fa;--ink: #18212b;--muted: #596677;--line: #c5ced8;--accent: #0b6b78;--accent-ink: #fff;--bad: #a3262a;--ok: #1d6b3a;color-scheme:light dark}@media(prefers-color-scheme:dark){:root{--bg: #12171d;--panel: #1b222a;--ink: #e3e9ef;--muted: #93a1b0;--line: #2f3a46;--accent: #4fc3d1;--accent-ink: #08242a;--bad: #ff8d8f;--ok: #7fd49b}}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.5 system-ui,sans-serif}main{max-width:760px;margin:0 auto;padding:24px 16px 48px;display:grid;gap:20px}h1{margin:0;font-size:1.9rem;letter-spacing:-.02em}h2{margin:0;font-size:1.1rem}header p{margin:4px 0 0;color:var(--muted)}.count{color:var(--muted);font-weight:400}.field{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:28px 20px;display:grid;justify-items:center;gap:16px;text-align:center}.ring{width:84px;height:84px;border-radius:50%;border:3px solid var(--line);position:relative}.ring:after{content:"";position:absolute;inset:22px;border-radius:50%;background:var(--line)}.live .ring{border-color:var(--accent);animation:pulse 1.6s ease-out infinite}.live .ring:after{background:var(--accent)}@keyframes pulse{0%{box-shadow:0 0 color-mix(in srgb,var(--accent) 50%,transparent)}to{box-shadow:0 0 0 28px transparent}}@media(prefers-reduced-motion:reduce){.live .ring{animation:none}}.state{margin:0;max-width:34ch}.row{display:flex;flex-wrap:wrap;gap:8px;justify-content:center}.bar{display:flex;flex-wrap:wrap;gap:8px 16px;justify-content:space-between;align-items:center;margin-bottom:10px}button{font:inherit;padding:8px 14px;border-radius:8px;border:1px solid var(--line);background:var(--panel);color:var(--ink);cursor:pointer}button:hover:not(:disabled){border-color:var(--accent)}button.primary{background:var(--accent);color:var(--accent-ink);border-color:var(--accent);font-weight:600}button.ghost{background:transparent}button:disabled{opacity:.45;cursor:not-allowed}button:focus-visible,summary:focus-visible{outline:3px solid var(--accent);outline-offset:2px}pre{margin:0;padding:16px;background:var(--panel);border:1px solid var(--line);border-radius:10px;font:13px/1.55 ui-monospace,Menlo,Consolas,monospace;overflow-x:auto;white-space:pre-wrap;word-break:break-word;max-height:60vh;overflow-y:auto}.empty{color:var(--muted);padding:16px;border:1px dashed var(--line);border-radius:10px;margin:0}.msg{margin:0;padding:10px 14px;border-radius:8px;border:1px solid currentColor}.bad{color:var(--bad)}.ok{color:var(--ok)}details{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:12px 16px}summary{cursor:pointer;font-weight:600}details p{color:var(--muted);max-width:70ch}