:root{color-scheme:dark;--bg:#0b0f17;--panel:#131b29;--line:#273349;--text:#f0f4fb;--muted:#a2aec1;--blue:#5285ff;--ok:#66d6b0;--unknown:#aab9d0;--unstable:#edbb70;--error:#f29b99}
*{box-sizing:border-box}
[hidden]{display:none!important}
body{margin:0;background:var(--bg);color:var(--text);font:16px/1.55 "Segoe UI",-apple-system,BlinkMacSystemFont,Roboto,sans-serif;-webkit-font-smoothing:antialiased}
button,a,summary{-webkit-tap-highlight-color:transparent}
button{font:inherit}
button:not(:disabled),summary{cursor:pointer}
button:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid #9bb7ff;outline-offset:5px}
button:disabled{opacity:.65;cursor:wait}
.wrap{max-width:860px;margin:auto;padding:34px 32px 40px}
.head{display:flex;align-items:center;justify-content:space-between;gap:16px}
.logo{font-weight:750;font-size:25px;letter-spacing:-1px;text-decoration:none;color:var(--text)}
.logo span{font-weight:400;color:var(--muted)}
.mode{display:flex;align-items:center;gap:8px;color:var(--muted);font-size:13px}
.dot{display:inline-block;flex-shrink:0;width:7px;height:7px;border-radius:50%;background:#53617a}
.dot.ok{background:var(--ok)}.dot.unknown{background:var(--unknown)}.dot.unstable{background:var(--unstable)}
.intro{padding:55px 0 25px;max-width:700px}
.connection-art{display:flex;align-items:center;width:134px;height:28px;margin-bottom:24px;color:#8faeff}
.device{width:19px;height:27px;border:2px solid currentColor;border-radius:4px;position:relative}
.device:after{content:"";position:absolute;bottom:3px;left:5px;width:5px;height:2px;background:currentColor}
.route{width:79px;height:1px;border-top:1px dashed #546787;margin:0 10px;position:relative}
.route:after{content:"";position:absolute;width:5px;height:5px;border-radius:50%;background:var(--ok);top:-3px;left:30px;box-shadow:0 0 0 5px #172a2b}
.endpoint{width:16px;height:16px;border:2px solid currentColor;border-radius:50%;flex-shrink:0}
h1{font-size:clamp(32px,5.6vw,46px);line-height:1.15;letter-spacing:-1.5px;font-weight:680;margin:0 0 21px}
.lead{font-size:19px;line-height:1.5;color:#cdd6e6;max-width:550px;margin:0 0 15px}
.hint{font-size:14px;max-width:565px;color:var(--muted);margin:0}
.test-panel{padding-bottom:27px}
.action-row{display:flex;gap:12px;align-items:stretch}
.primary{background:var(--blue);border:1px solid transparent;color:white;font-size:17px;font-weight:650;border-radius:11px;padding:16px 22px;min-height:58px;min-width:282px;display:flex;align-items:center;justify-content:space-between;gap:28px}
.primary:hover:not(:disabled){background:#6895ff}
.primary span{font-size:23px;line-height:1}
.secondary{background:transparent;color:var(--text);border:1px solid var(--line);border-radius:11px;padding:13px 18px}
.secondary:hover{background:var(--panel)}
.start-note{font-size:12px;color:var(--muted);margin:12px 0 0}
.progress{margin-top:25px;padding:20px 22px;background:var(--panel);border-radius:12px}
.progress-heading{display:flex;justify-content:space-between;gap:10px;font-size:14px}
.progress-heading strong{font-weight:550}.progress-heading span{color:var(--muted);white-space:nowrap}
.bar{margin:13px 0;height:6px;overflow:hidden;border-radius:8px;background:#25314a}
.bar i{display:block;width:0%;height:100%;background:#7eabff;transition:width .18s ease}
.activity{margin:0;color:var(--muted);font-size:13px;min-height:20px;overflow-wrap:anywhere}
.section-heading{display:flex;justify-content:space-between;align-items:center;gap:12px}
h2{font-size:21px;line-height:1.3;letter-spacing:-.3px;margin:0;font-weight:620}
.section-heading>span{font-size:13px;white-space:nowrap}
.summary{padding:29px 0 26px;border-top:1px solid var(--line)}
.summary-text{margin:10px 0 21px;color:#cbd5e6;font-size:15px}
.metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:0;background:var(--panel);border-radius:12px;padding:20px 0}
.metric{padding:0 18px;border-right:1px solid var(--line)}.metric:last-child{border:0}
.metric-name{display:flex;align-items:center;gap:7px;font-size:12px;color:var(--muted)}
.metric strong{display:block;font-size:35px;line-height:1.2;font-weight:550;margin-top:8px}
.result-limit{font-size:13px;line-height:1.65;color:var(--muted);margin:18px 0}
.message{padding:13px 15px;border-left:3px solid var(--unstable);background:#221e17;font-size:14px;color:#efcea0;margin:18px 0 0;border-radius:0 6px 6px 0}
.message.error{color:var(--error);background:#281c24;border-color:var(--error)}
.save-row{display:flex;align-items:center;justify-content:space-between;gap:16px}
.save-row p{margin:0;font-size:13px;color:var(--muted)}
.save-row p.saved{color:var(--ok)}.save-row p.save-error{color:var(--unstable)}
.text-button{background:transparent;border:0;color:#aac5ff;padding:7px 0;flex-shrink:0;font-size:13px;text-decoration:underline;text-underline-offset:4px}
.netline{font-size:12px;color:var(--muted);margin:10px 0 0;overflow-wrap:anywhere}
.details{border:1px solid var(--line);border-radius:12px;margin-bottom:28px}
.details summary{padding:16px 19px;font-size:14px;color:#d6e2f5}
.details summary span{font-size:12px;color:var(--muted);margin-left:6px}
.details-hint{font-size:12px;color:var(--muted);margin:0;padding:0 19px 15px}
.list{list-style:none;padding:0;margin:0;border-top:1px solid var(--line)}
.item{display:grid;grid-template-columns:8px minmax(0,1fr) auto;align-items:center;gap:12px;padding:13px 19px;border-top:1px solid #1f2a3e;font-size:14px}
.item:first-child{border:0}.node-name{overflow-wrap:anywhere;color:#d9e1ee}.node-meta{display:block;color:var(--muted);font-size:11px;margin-top:2px}
.res{text-align:right;color:var(--muted);font-size:12px}.res b{font-weight:500;display:block}.res small{font-size:11px;display:block;margin-top:3px}.res.ok b{color:var(--ok)}.res.unstable b{color:var(--unstable)}
.advanced{border-top:1px solid var(--line);padding-top:27px;margin-top:10px}
.advanced-heading{display:flex;align-items:center;gap:14px;flex-wrap:wrap}.advanced h2{font-size:18px}
.soon{font-size:11px;color:#b9c8e0;border:1px solid #32435e;border-radius:5px;padding:3px 8px}
.advanced p{max-width:650px;font-size:14px;color:#c7d1e0;margin:13px 0 0}.advanced p.muted,.muted{color:var(--muted)}
.advanced .deep-status{font-size:13px;color:var(--muted);margin:19px 0 12px}.deep-actions .primary{font-size:15px;min-width:0}.deep-actions .secondary{font-size:14px}
#deep-progress{display:block;width:100%;height:7px;border:0;border-radius:10px;background:var(--line);margin-top:19px}#deep-progress::-webkit-progress-bar{background:var(--line);border-radius:10px}#deep-progress::-webkit-progress-value{background:var(--blue);border-radius:10px}#deep-progress::-moz-progress-bar{background:var(--blue);border-radius:10px}
.deep-summary{font-size:14px;line-height:1.65;margin-top:13px;overflow-wrap:anywhere}.deep-events{max-height:220px;overflow:auto;background:var(--panel);padding:14px 16px 14px 34px;border-radius:8px;color:var(--muted);font-size:12px}.deep-events li+li{margin-top:5px}
.install{margin-top:22px;border:1px solid var(--line);border-radius:10px;padding:0 17px 0}.install summary{padding:15px 0;font-size:14px;color:#d6e2f5}.install[open]{padding-bottom:17px}.install ol{padding-left:20px;color:#c7d1e0;font-size:13px;line-height:1.7}.install li+li{margin-top:11px}.install code{font-size:12px;overflow-wrap:anywhere;background:#1e2a3c;border-radius:3px;padding:1px 4px}.install p{font-size:12px}.download-row{display:flex;flex-wrap:wrap;gap:10px}.download{border:1px solid #395482;border-radius:8px;color:#bbd0ff;padding:10px 12px;text-decoration:none;font-size:13px}.download:hover{background:#18243b}.download span{font-size:10px;display:block;color:var(--muted);margin-top:3px}
.foot{padding-top:29px;max-width:680px}.foot p{font-size:11px;line-height:1.6;color:#8d9cb3;margin:0}
@media(max-width:600px){.wrap{padding:23px 20px 30px}.logo{font-size:23px}.mode{font-size:11px;gap:6px}.intro{padding-top:37px}.connection-art{margin-bottom:21px}h1{font-size:34px;letter-spacing:-1px}.lead{font-size:17px}.hint{font-size:13px}.primary{min-width:0;flex:1;font-size:16px;padding:15px 17px;gap:12px}.secondary{font-size:13px;padding:12px}.action-row{gap:8px}.progress{padding:17px}.metrics{padding:16px 0}.metric{padding:0 10px}.metric-name{font-size:11px;gap:5px;align-items:flex-start;line-height:1.35;min-height:31px}.metric-name .dot{margin-top:4px}.metric strong{font-size:30px}.save-row{align-items:flex-start}.save-row p{font-size:12px}.text-button{font-size:12px;padding-top:0}.item{gap:9px;padding:12px 13px}.res{max-width:130px}.section-heading{align-items:flex-start}h2{font-size:20px}.section-heading>span{padding-top:3px;font-size:11px}}
@media(max-width:350px){.wrap{padding-left:15px;padding-right:15px}.mode{font-size:10px}h1{font-size:30px}.metric{padding:0 8px}.metric-name{font-size:10px}.save-row{display:block}.text-button{margin-top:10px}.action-row{flex-wrap:wrap}.primary{min-width:100%}}
@media(prefers-reduced-motion:reduce){.bar i{transition:none}}