:root{--bg:#f6f8fb;--ink:#0f1b2d;--mut:#5b6b82;--line:#dde4ee;--brand:#1a6bff;--ok:#12a150;--bad:#d93025;--warn:#b26a00;--card:#fff;--ad:#fff6e0;--adline:#e0b050}
*{box-sizing:border-box}
body{margin:0;font:15px/1.5 system-ui,"Segoe UI",Roboto,sans-serif;background:var(--bg);color:var(--ink)}
a{color:inherit}
header{background:var(--card);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:5}
.wrap{max-width:1240px;margin:0 auto;padding:0 20px}
.nav{display:flex;align-items:center;gap:28px;height:58px}
.logo{font-weight:800;font-size:20px;letter-spacing:-.5px;text-decoration:none}.logo b{color:var(--brand)}
.tabs{display:flex;gap:4px;flex:1}
.tab{padding:8px 14px;border-radius:8px;color:var(--mut);font-weight:600;text-decoration:none;white-space:nowrap}
.tab:hover{background:#eef3fb}.tab.on{background:#e6efff;color:var(--brand)}

/* Ad slots: every slot has a fixed size so late-loading ads cannot shift the page. */
.ad{display:flex;align-items:center;justify-content:center;text-align:center;position:relative;overflow:hidden;padding-top:12px}
.ad[hidden]{display:none!important}
.ad::before{content:"Advertisement";position:absolute;top:0;left:0;right:0;font-size:9px;line-height:12px;text-transform:uppercase;letter-spacing:.5px;color:var(--mut);opacity:.7}
.leader{height:102px;max-width:728px;margin:14px auto}
.inline{height:102px;max-width:728px;margin:0 auto 18px}
.rect{height:262px;width:300px}.sky{height:612px;width:300px}
.mrect{display:none;height:262px;width:300px;max-width:100%;margin:0 auto 18px}
.mobile-bar{display:none;padding-top:0}.mobile-bar::before{display:none}

.layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:22px;align-items:start;padding-bottom:30px}
.layout.no-rail{grid-template-columns:minmax(0,1fr)}
.layout.no-rail .rail{display:none}
.rail{display:flex;flex-direction:column;gap:16px;align-self:stretch}
.sticky{position:sticky;top:76px}
.panel{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:20px;margin-bottom:18px}
.panel.flush{padding:0;overflow:hidden}
h1{font-size:26px;margin:4px 0;letter-spacing:-.5px}
.sub{color:var(--mut);margin:0 0 16px}
.search{display:flex;gap:8px;flex-wrap:wrap}
input,select{height:46px;border:1px solid #c6d1e0;border-radius:8px;padding:0 12px;font:inherit;background:#fff;color:inherit}
input.main{flex:1;min-width:220px}
button.go{height:46px;padding:0 24px;background:var(--brand);color:#fff;border:0;border-radius:8px;font-weight:700;font-size:15px;cursor:pointer}
button.go:disabled{opacity:.6;cursor:progress}
:focus-visible{outline:3px solid #8bb4ff;outline-offset:2px}
.error{color:var(--bad);margin:12px 0 0;font-weight:600}
.stats{display:flex;gap:14px;margin:16px 0 0;flex-wrap:wrap}
.stat{padding:10px 16px;border-radius:10px;background:#f1f5fb;color:var(--mut);font-size:13px}
.stat b{font-size:20px;display:block;color:var(--ink)}
.stat.ok b{color:var(--ok)}.stat.bad b{color:var(--bad)}

.map{aspect-ratio:1000/501;border-radius:12px;position:relative;overflow:hidden;border:1px solid var(--line);background:#dcebfa}
.map svg{position:absolute;inset:0;width:100%;height:100%}
.map svg .land{fill:#f3f6f1;stroke:#9db4cf;stroke-width:.8;stroke-linejoin:round}
.map svg .borders{fill:none;stroke:#c3d0e0;stroke-width:.5;stroke-linejoin:round}
.pin{position:absolute;width:13px;height:13px;border-radius:50%;border:2px solid #fff;box-shadow:0 1px 4px #0005;transform:translate(-50%,-50%);background:#9aa5b5;transition:background .2s}
.pin.ok{background:var(--ok)}.pin.differ{background:var(--bad)}.pin.fail{background:#e08a00}.pin.pending{animation:pulse 1s infinite}
.pin:hover{z-index:3}
.pin::after{content:attr(data-n);position:absolute;left:15px;top:-4px;font-size:10px;white-space:nowrap;background:#fffe;padding:0 4px;border-radius:3px;display:none}
.pin:hover::after{display:block}
@keyframes pulse{50%{opacity:.35}}
.fineprint{color:var(--mut);font-size:12px;margin:6px 0 18px}

.table-scroll{overflow-x:auto}
table{width:100%;border-collapse:collapse}
th,td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--line);font-size:14px;vertical-align:top}
th{color:var(--mut);font-weight:600;font-size:12px;text-transform:uppercase;letter-spacing:.4px}
tbody tr:last-child td{border-bottom:0}
caption{caption-side:top;text-align:left;font-weight:700;padding:14px 12px 4px}
.tag{display:inline-block;padding:1px 8px;border-radius:99px;font-size:12px;font-weight:700;white-space:nowrap}
.tag.ok{background:#e3f6ea;color:var(--ok)}.tag.bad{background:#fde8e6;color:var(--bad)}.tag.warn{background:#fff1d6;color:var(--warn)}.tag.pending{background:#eceff4;color:var(--mut)}
.mono{font-family:ui-monospace,Consolas,monospace;font-size:13px;word-break:break-all}
.page{display:none}.page.on{display:block}
.kv{display:grid;grid-template-columns:180px 1fr}
.kv>div{padding:9px 0;border-bottom:1px solid var(--line);word-break:break-word}.kv>.k{color:var(--mut)}
.faq h2{margin:0;font-size:20px}.faq h3{font-size:16px;margin:16px 0 4px}.faq p{margin:6px 0 0;color:var(--mut)}
.tabs{align-items:center}
.more{position:relative}
.more summary{list-style:none;cursor:pointer;margin:0}
.more summary::-webkit-details-marker{display:none}
.more summary::after{content:" ▾";font-size:11px}
.more .menu{position:absolute;right:0;top:calc(100% + 8px);min-width:190px;background:var(--card);border:1px solid var(--line);border-radius:10px;box-shadow:0 8px 24px #0f1b2d22;padding:6px;display:flex;flex-direction:column;z-index:20}
.menu-item{padding:8px 12px;border-radius:6px;color:var(--ink);text-decoration:none;font-weight:600;white-space:nowrap}
.menu-item:hover{background:#eef3fb}.menu-item.on{background:#e6efff;color:var(--brand)}

.report+.report{border-top:1px solid var(--line);margin-top:22px;padding-top:22px}
.verdict{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.verdict .tag{font-size:15px;padding:4px 14px}
.queried{color:var(--mut);font-size:13px;margin:8px 0 0}
pre.record{background:#f1f5fb;border-radius:8px;padding:12px;white-space:pre-wrap;word-break:break-all;margin:12px 0;font-size:13px}
ul.issues{list-style:none;padding:0;margin:14px 0;display:flex;flex-direction:column;gap:9px}
ul.issues li{display:flex;gap:10px;align-items:flex-start}
ul.issues .tag{flex:none;min-width:68px;text-align:center}
.report h3{font-size:16px;margin:18px 0 6px}
.report table{margin-top:4px}
.related h2{margin:0;font-size:20px}
.related ul{list-style:none;padding:0;margin:12px 0 0;display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px}
.related li a{display:block;font-weight:700;color:var(--brand);text-decoration:none}
.related li a:hover{text-decoration:underline}
.related li span{color:var(--mut);font-size:13px}
.ip-big{font-size:clamp(28px,6vw,48px);font-weight:800;letter-spacing:-1px;word-break:break-all;margin:6px 0;line-height:1.15}
.ip-note{color:var(--mut);margin:0 0 14px;min-height:1.5em}
.ip-actions{display:flex;gap:16px;align-items:center;flex-wrap:wrap}
.ip-actions[hidden],.link-btn[hidden],button[hidden]{display:none}
.link-btn{color:var(--brand);font-weight:600}
pre.raw{white-space:pre-wrap;margin:0;color:var(--mut);max-height:320px;overflow:auto}
details summary{cursor:pointer;font-weight:600;margin-top:14px}
footer{border-top:1px solid var(--line);padding:24px 0;color:var(--mut);font-size:13px;background:#fff}

@media(max-width:900px){
  .layout{grid-template-columns:1fr}.rail,.dsk{display:none}.mrect{display:flex}
  .leader{height:62px;max-width:320px}
  .mobile-bar{display:flex;position:fixed;bottom:0;left:0;right:0;height:50px;border-radius:0;z-index:9}
  body.has-anchor{padding-bottom:52px}.kv{grid-template-columns:110px 1fr}
  /* Phones: the tab bar wraps onto a second row so "More tools" is always visible (no hidden sideways scroll). */
  .nav{height:auto;flex-wrap:wrap;gap:6px 12px;padding-top:10px;padding-bottom:10px}
  .tabs{flex:1 1 100%;flex-wrap:wrap;gap:4px;align-items:flex-start}
  .more summary{display:block}
  .tab{padding:6px 11px;font-size:14px}
  .more .menu{right:0;left:auto;max-width:calc(100vw - 24px)}
}

/* IP addresses in tables must never wrap mid-number; .table-scroll handles narrow screens. */
td.mono, td .mono { white-space: nowrap; }
/* Hub table: keep the filtering text readable; the wrapper scrolls sideways on phones. */
.hub th:nth-child(4), .hub td:nth-child(4) { min-width: 210px; }
.hub th, .hub td { vertical-align: top; }