.tool-engine[data-tool="21-diagnostic-ipv6"]{color-scheme:light dark;--bg:#f3f6fb;--surface:#fff;--surface-2:#f8faff;--text:#172033;--muted:#647087;--line:#dbe2ee;--accent:#3156c9;--accent-2:#ebf0ff;--ok:#087443;--ok-bg:#e9f8ef;--warn:#945500;--warn-bg:#fff5dc;--bad:#b42318;--bad-bg:#ffefed;--info:#2356b8;--shadow:0 12px 34px rgba(24,42,78,.07)}@media(prefers-color-scheme:dark){.tool-engine[data-tool="21-diagnostic-ipv6"]{--bg:#0d1420;--surface:#171f2d;--surface-2:#111927;--text:#eef2fa;--muted:#a8b4c8;--line:#303b50;--accent:#91abff;--accent-2:#202e58;--ok:#65d29a;--ok-bg:#153426;--warn:#ffc469;--warn-bg:#3a2c13;--bad:#ff8e86;--bad-bg:#40201f;--info:#a9bdff;--shadow:none}}.tool-engine[data-tool="21-diagnostic-ipv6"] *{box-sizing:border-box}.tool-engine[data-tool="21-diagnostic-ipv6"]{margin:0;background:radial-gradient(circle at 85% 0,rgba(49,86,201,.09),transparent 32%),var(--bg);color:var(--text);font:15px/1.55 system-ui,-apple-system,"Segoe UI",sans-serif}.tool-engine[data-tool="21-diagnostic-ipv6"] .shell{width:min(1160px,calc(100% - 28px));margin:36px auto 72px}.tool-engine[data-tool="21-diagnostic-ipv6"] .hero{max-width:870px;margin-bottom:22px}.tool-engine[data-tool="21-diagnostic-ipv6"] .eyebrow{margin:0;color:var(--accent);font-size:12px;font-weight:850;letter-spacing:.085em;text-transform:uppercase}.tool-engine[data-tool="21-diagnostic-ipv6"] .hero h1{font-size:clamp(32px,6vw,54px);line-height:1.02;margin:7px 0 14px;letter-spacing:-.035em}.tool-engine[data-tool="21-diagnostic-ipv6"] .intro{color:var(--muted);font-size:17px;margin:0;max-width:850px}.tool-engine[data-tool="21-diagnostic-ipv6"] .panel,.tool-engine[data-tool="21-diagnostic-ipv6"] .metric,.tool-engine[data-tool="21-diagnostic-ipv6"] .verdict,.tool-engine[data-tool="21-diagnostic-ipv6"] .privacy-note{background:var(--surface);border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow)}.tool-engine[data-tool="21-diagnostic-ipv6"] .panel{padding:19px;margin:16px 0}.tool-engine[data-tool="21-diagnostic-ipv6"] .panel h2{margin:2px 0 8px;font-size:20px}.tool-engine[data-tool="21-diagnostic-ipv6"] .controls{padding:22px}.tool-engine[data-tool="21-diagnostic-ipv6"] .options{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:14px}.tool-engine[data-tool="21-diagnostic-ipv6"] .check{display:flex;gap:11px;padding:13px;border:1px solid var(--line);border-radius:12px;background:var(--surface-2);cursor:pointer}.tool-engine[data-tool="21-diagnostic-ipv6"] .check input{width:18px;height:18px;margin-top:3px;accent-color:var(--accent)}.tool-engine[data-tool="21-diagnostic-ipv6"] .check span,.tool-engine[data-tool="21-diagnostic-ipv6"] .check small{display:block}.tool-engine[data-tool="21-diagnostic-ipv6"] .check small{color:var(--muted);margin-top:3px}.tool-engine[data-tool="21-diagnostic-ipv6"] .manual-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:14px}.tool-engine[data-tool="21-diagnostic-ipv6"] .manual-grid label{font-weight:750}.tool-engine[data-tool="21-diagnostic-ipv6"] .manual-grid label span{font-weight:400;color:var(--muted)}.tool-engine[data-tool="21-diagnostic-ipv6"] input[type=text],.tool-engine[data-tool="21-diagnostic-ipv6"] input[inputmode=numeric]{display:block;width:100%;margin-top:6px;border:1px solid var(--line);border-radius:9px;padding:10px 12px;background:var(--surface);color:var(--text);font:inherit;text-transform:uppercase}.tool-engine[data-tool="21-diagnostic-ipv6"] input:focus-visible,.tool-engine[data-tool="21-diagnostic-ipv6"] button:focus-visible,.tool-engine[data-tool="21-diagnostic-ipv6"] summary:focus-visible{outline:3px solid color-mix(in srgb,var(--accent) 38%,transparent);outline-offset:2px}.tool-engine[data-tool="21-diagnostic-ipv6"] .actions{display:flex;gap:9px;flex-wrap:wrap;margin-top:18px}.tool-engine[data-tool="21-diagnostic-ipv6"] button{border:1px solid var(--line);border-radius:10px;padding:10px 15px;background:var(--surface);color:var(--text);font:inherit;font-weight:800;cursor:pointer}.tool-engine[data-tool="21-diagnostic-ipv6"] button.primary{background:var(--accent);border-color:var(--accent);color:white}.tool-engine[data-tool="21-diagnostic-ipv6"] button:disabled{cursor:not-allowed;opacity:.52}.tool-engine[data-tool="21-diagnostic-ipv6"] #status{color:var(--muted);margin:12px 0 0}.tool-engine[data-tool="21-diagnostic-ipv6"] .verdict{display:grid;grid-template-columns:auto 1fr;gap:15px;padding:20px;margin:18px 0}.tool-engine[data-tool="21-diagnostic-ipv6"] .verdict-icon{display:grid;place-items:center;width:44px;height:44px;border-radius:50%;background:var(--accent-2);color:var(--accent);font-size:22px;font-weight:900}.tool-engine[data-tool="21-diagnostic-ipv6"] .verdict-label{margin:0;color:var(--muted);font-size:12px;text-transform:uppercase;font-weight:800}.tool-engine[data-tool="21-diagnostic-ipv6"] .verdict h2{margin:1px 0 4px;font-size:23px}.tool-engine[data-tool="21-diagnostic-ipv6"] .verdict p:last-child{margin:0;color:var(--muted)}.tool-engine[data-tool="21-diagnostic-ipv6"] .verdict.ok{border-color:color-mix(in srgb,var(--ok) 36%,var(--line))}.tool-engine[data-tool="21-diagnostic-ipv6"] .verdict.ok .verdict-icon{background:var(--ok-bg);color:var(--ok)}.tool-engine[data-tool="21-diagnostic-ipv6"] .verdict.warn{border-color:color-mix(in srgb,var(--warn) 40%,var(--line))}.tool-engine[data-tool="21-diagnostic-ipv6"] .verdict.warn .verdict-icon{background:var(--warn-bg);color:var(--warn)}.tool-engine[data-tool="21-diagnostic-ipv6"] .verdict.danger{border-color:color-mix(in srgb,var(--bad) 42%,var(--line))}.tool-engine[data-tool="21-diagnostic-ipv6"] .verdict.danger .verdict-icon{background:var(--bad-bg);color:var(--bad)}.tool-engine[data-tool="21-diagnostic-ipv6"] .summary-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:13px;margin:16px 0}.tool-engine[data-tool="21-diagnostic-ipv6"] .metric{padding:17px;min-width:0}.tool-engine[data-tool="21-diagnostic-ipv6"] .metric span,.tool-engine[data-tool="21-diagnostic-ipv6"] .metric small{display:block;color:var(--muted)}.tool-engine[data-tool="21-diagnostic-ipv6"] .metric strong{display:block;font:750 clamp(16px,2.1vw,23px)/1.25 ui-monospace,SFMono-Regular,Consolas,monospace;margin:5px 0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.tool-engine[data-tool="21-diagnostic-ipv6"] .metric small{overflow-wrap:anywhere}.tool-engine[data-tool="21-diagnostic-ipv6"] .section-head{display:flex;justify-content:space-between;align-items:center;gap:15px}.tool-engine[data-tool="21-diagnostic-ipv6"] .pill{display:inline-block;border-radius:999px;padding:4px 9px;background:var(--surface-2);color:var(--muted);border:1px solid var(--line);font-size:12px;font-weight:800;white-space:nowrap}.tool-engine[data-tool="21-diagnostic-ipv6"] .pill.ok{background:var(--ok-bg);color:var(--ok);border-color:transparent}.tool-engine[data-tool="21-diagnostic-ipv6"] .pill.warn{background:var(--warn-bg);color:var(--warn);border-color:transparent}.tool-engine[data-tool="21-diagnostic-ipv6"] .pill.bad{background:var(--bad-bg);color:var(--bad);border-color:transparent}.tool-engine[data-tool="21-diagnostic-ipv6"] .table-wrap{overflow:auto;margin-top:10px}.tool-engine[data-tool="21-diagnostic-ipv6"] table{width:100%;border-collapse:collapse;min-width:720px}.tool-engine[data-tool="21-diagnostic-ipv6"] th,.tool-engine[data-tool="21-diagnostic-ipv6"] td{text-align:left;vertical-align:top;padding:11px 9px;border-bottom:1px solid var(--line)}.tool-engine[data-tool="21-diagnostic-ipv6"] th{font-size:11px;text-transform:uppercase;letter-spacing:.045em;color:var(--muted)}.tool-engine[data-tool="21-diagnostic-ipv6"] td small{display:block;color:var(--muted);margin-top:2px}.tool-engine[data-tool="21-diagnostic-ipv6"] .mono{font:13px/1.45 ui-monospace,SFMono-Regular,Consolas,monospace;overflow-wrap:anywhere}.tool-engine[data-tool="21-diagnostic-ipv6"] .empty{text-align:center;color:var(--muted);padding:24px}.tool-engine[data-tool="21-diagnostic-ipv6"] .footnote{font-size:13px;color:var(--muted);margin:12px 0 0}.tool-engine[data-tool="21-diagnostic-ipv6"] .ok-text{color:var(--ok)!important}.tool-engine[data-tool="21-diagnostic-ipv6"] .warn-text{color:var(--warn)!important}.tool-engine[data-tool="21-diagnostic-ipv6"] .bad-text{color:var(--bad)!important}.tool-engine[data-tool="21-diagnostic-ipv6"] .working{color:var(--info)!important}.tool-engine[data-tool="21-diagnostic-ipv6"] .details-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,280px),1fr));gap:14px}.tool-engine[data-tool="21-diagnostic-ipv6"] .details-grid .panel{margin:0}.tool-engine[data-tool="21-diagnostic-ipv6"] .compact dl{margin:12px 0 0}.tool-engine[data-tool="21-diagnostic-ipv6"] .compact dl div{display:grid;grid-template-columns:minmax(120px,.45fr) 1fr;gap:12px;padding:8px 0;border-bottom:1px solid var(--line)}.tool-engine[data-tool="21-diagnostic-ipv6"] dt{color:var(--muted);font-size:12px}.tool-engine[data-tool="21-diagnostic-ipv6"] dd{margin:0;overflow-wrap:anywhere}.tool-engine[data-tool="21-diagnostic-ipv6"] .history-table{min-width:760px}.tool-engine[data-tool="21-diagnostic-ipv6"] .guidance ol{padding-left:22px;color:var(--muted)}.tool-engine[data-tool="21-diagnostic-ipv6"] .guidance li+li{margin-top:7px}.tool-engine[data-tool="21-diagnostic-ipv6"] .raw summary{cursor:pointer;font-weight:800}.tool-engine[data-tool="21-diagnostic-ipv6"] .raw pre{max-height:420px;overflow:auto;padding:14px;background:var(--surface-2);border:1px solid var(--line);border-radius:10px;font:12px/1.5 ui-monospace,Consolas,monospace;white-space:pre-wrap;overflow-wrap:anywhere}.tool-engine[data-tool="21-diagnostic-ipv6"] .privacy-note{padding:16px;margin-top:16px;color:var(--muted)}.tool-engine[data-tool="21-diagnostic-ipv6"] .privacy-note strong{color:var(--text)}@media(max-width:780px){.tool-engine[data-tool="21-diagnostic-ipv6"] .options,.tool-engine[data-tool="21-diagnostic-ipv6"] .manual-grid,.tool-engine[data-tool="21-diagnostic-ipv6"] .summary-grid,.tool-engine[data-tool="21-diagnostic-ipv6"] .details-grid{grid-template-columns:1fr}.tool-engine[data-tool="21-diagnostic-ipv6"] .shell{margin-top:22px}.tool-engine[data-tool="21-diagnostic-ipv6"] .hero h1{font-size:38px}.tool-engine[data-tool="21-diagnostic-ipv6"] .section-head{align-items:flex-start}.tool-engine[data-tool="21-diagnostic-ipv6"] .compact dl div{grid-template-columns:1fr;gap:2px}}@media(prefers-reduced-motion:no-preference){.tool-engine[data-tool="21-diagnostic-ipv6"] button,.tool-engine[data-tool="21-diagnostic-ipv6"] .panel,.tool-engine[data-tool="21-diagnostic-ipv6"] .metric{transition:border-color .18s ease,transform .18s ease}.tool-engine[data-tool="21-diagnostic-ipv6"] button:hover:not(:disabled){transform:translateY(-1px)}}.tool-engine[data-tool="21-diagnostic-ipv6"] .suite-return{display:inline-flex;align-items:center;gap:.35rem;margin:0 0 1rem;padding:.45rem .7rem;border:1px solid currentColor;border-radius:.5rem;color:inherit;font:inherit;text-decoration:none}.tool-engine[data-tool="21-diagnostic-ipv6"] .suite-return:hover{text-decoration:underline}.tool-engine[data-tool="21-diagnostic-ipv6"] .suite-return:focus-visible{outline:3px solid currentColor;outline-offset:3px}
