:root{--ink:#14202e;--ink2:#3d4a5a;--muted:#6a7584;--paper:#f3f4f1;--card:#fff;--line:#d9ddd6;--panel:#1b2836;--panel2:#24364a;
--bad:#d93a2b;--warn:#e8a400;--ok:#2f9e5b;--info:#8a929c;--focus:#2563eb;
--sans:"IBM Plex Sans",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;--mono:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.55 var(--sans);overflow-wrap:break-word}
a{color:var(--ink);text-underline-offset:3px}
a:hover{color:#000}
:focus-visible{outline:3px solid var(--focus);outline-offset:2px;border-radius:3px}
img,svg,table,pre{max-width:100%}
.wrap{max-width:1080px;margin:0 auto;padding:0 20px}
header.top{border-bottom:1px solid var(--line);background:var(--paper)}
header.top .wrap{display:flex;align-items:center;justify-content:space-between;height:60px;gap:16px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:19px;letter-spacing:-.01em;text-decoration:none}
.brand svg{width:26px;height:26px}
nav.links{display:flex;gap:18px;font-size:15px}
nav.links a{text-decoration:none;color:var(--ink2)}
nav.links a:hover{color:var(--ink);text-decoration:underline}
.hero{padding:48px 0 28px}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center}
h1{font-size:44px;line-height:1.08;letter-spacing:-.025em;margin:0 0 16px}
.lede{font-size:19px;color:var(--ink2);margin:0 0 8px;max-width:34em}
.panel{background:var(--panel);color:#dfe7ef;border-radius:14px;padding:18px 18px 14px;font:14px/1.5 var(--mono);box-shadow:0 1px 0 rgba(255,255,255,.06) inset,0 12px 30px rgba(20,32,46,.18)}
.panel-head{display:grid;grid-template-columns:1fr repeat(3,64px);gap:6px;color:#8ea2b6;font-size:11px;letter-spacing:.08em;text-transform:uppercase;padding:0 4px 8px;border-bottom:1px solid var(--panel2)}
.panel-row{display:grid;grid-template-columns:1fr repeat(3,64px);gap:6px;align-items:center;padding:8px 4px;border-bottom:1px solid var(--panel2)}
.panel-row:last-child{border-bottom:0}
.panel-row span:first-child{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.panel-head span:not(:first-child),.panel-row span:not(:first-child){text-align:center}
.lamp{display:inline-block;width:14px;height:14px;border-radius:50%;background:var(--info);vertical-align:-2px;box-shadow:0 0 0 2px rgba(0,0,0,.12) inset}
.lamp.ok{background:var(--ok)}.lamp.warn{background:var(--warn)}.lamp.bad{background:var(--bad)}.lamp.info{background:var(--info)}
.panel .lamp.ok{box-shadow:0 0 10px rgba(47,158,91,.7)}.panel .lamp.warn{box-shadow:0 0 10px rgba(232,164,0,.75)}.panel .lamp.bad{box-shadow:0 0 10px rgba(217,58,43,.8)}
.panel-note{color:#8ea2b6;font-size:12px;padding:10px 4px 0}
@media (prefers-reduced-motion:no-preference){
 .panel .lamp{animation:on .5s ease-out both}
 .panel-row:nth-child(2) .lamp{animation-delay:.15s}.panel-row:nth-child(3) .lamp{animation-delay:.3s}.panel-row:nth-child(4) .lamp{animation-delay:.45s}.panel-row:nth-child(5) .lamp{animation-delay:.6s}
 .panel-row .lamp.bad{animation:on .5s ease-out both,blink 1.6s 1.4s ease-in-out 3}
}
@keyframes on{from{background:#3a4a5c;box-shadow:none}}
@keyframes blink{50%{opacity:.35}}
.tool{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:20px;margin:8px 0 18px}
.tool label{display:block;font-weight:600;margin:0 0 8px}
textarea{width:100%;min-height:130px;resize:vertical;border:1px solid #c5cbc2;border-radius:10px;padding:12px 14px;font:15px/1.5 var(--mono);color:var(--ink);background:#fbfbfa}
textarea:focus{border-color:var(--ink)}
.actions{display:flex;flex-wrap:wrap;gap:10px 14px;align-items:center;margin-top:12px}
button,.btn{font:600 15px/1 var(--sans);border-radius:10px;padding:12px 18px;border:1px solid var(--ink);background:var(--ink);color:#fff;cursor:pointer;text-decoration:none;display:inline-flex;align-items:center;gap:8px}
button:hover,.btn:hover{background:#000;color:#fff}
button.ghost,.btn.ghost{background:transparent;color:var(--ink)}
button.ghost:hover{background:#e7e9e4;color:var(--ink)}
button:disabled{opacity:.55;cursor:default}
.small{font-size:14px;color:var(--muted)}
.summary{display:flex;flex-wrap:wrap;gap:8px 18px;align-items:center;margin:4px 0 14px;font-weight:600}
.summary .count{display:inline-flex;align-items:center;gap:7px}
.exports{display:flex;flex-wrap:wrap;gap:8px;margin-left:auto}
.exports button{padding:9px 13px;font-size:14px}
.results{display:grid;gap:10px;margin-bottom:36px}
.dom{background:var(--card);border:1px solid var(--line);border-left:6px solid var(--info);border-radius:12px;overflow:hidden}
.dom.bad{border-left-color:var(--bad)}.dom.warn{border-left-color:var(--warn)}.dom.ok{border-left-color:var(--ok)}
.dom summary{list-style:none;cursor:pointer;display:grid;grid-template-columns:minmax(0,1fr) auto;gap:4px 16px;padding:14px 16px;align-items:center}
.dom summary::-webkit-details-marker{display:none}
.dom .name{font:600 17px/1.3 var(--mono);overflow-wrap:anywhere}
.dom .head{grid-column:1/-1;color:var(--ink2);font-size:15px}
.dom .lamps{display:flex;gap:12px;font-size:13px;color:var(--muted);white-space:nowrap}
.dom .lamps span{display:inline-flex;align-items:center;gap:5px}
.dom .more{grid-column:1/-1;font-size:13px;color:var(--muted)}
.dom[open] .more{display:none}
.dom .body{padding:0 16px 14px;border-top:1px solid var(--line)}
.find{display:grid;grid-template-columns:18px minmax(0,1fr);gap:10px;padding:12px 0;border-bottom:1px solid #eceee9}
.find:last-of-type{border-bottom:0}
.find .lamp{margin-top:4px}
.find h3{font-size:16px;margin:0 0 2px}
.find p{margin:0;color:var(--ink2)}
.fix{margin-top:8px;background:#f5f6f3;border:1px solid var(--line);border-radius:8px;padding:10px 12px;font-size:14.5px}
.fix b{display:block;font-size:12px;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);margin-bottom:2px}
.fix code,.rec{font:13.5px/1.5 var(--mono);background:#fff;border:1px solid var(--line);border-radius:5px;padding:1px 5px;overflow-wrap:anywhere}
.fix ul{margin:4px 0 0;padding-left:18px}
.facts{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:6px 18px;margin:10px 0 0;font-size:14px;color:var(--ink2)}
.facts div{overflow-wrap:anywhere}
.facts b{color:var(--muted);font-weight:500;display:block;font-size:12px;text-transform:uppercase;letter-spacing:.05em}
.pending{color:var(--muted);font-style:italic}
.err{color:var(--bad);font-weight:600}
section.band{padding:36px 0;border-top:1px solid var(--line)}
h2{font-size:28px;letter-spacing:-.015em;line-height:1.2;margin:0 0 14px}
.three{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:18px}
.card h3{margin:6px 0 6px;font-size:18px;display:flex;align-items:center;gap:8px}
.card p,.card ul{margin:0;color:var(--ink2)}
.card ul{padding-left:18px}
.faq dt{font-weight:600;margin-top:14px}
.faq dd{margin:4px 0 0;color:var(--ink2)}
pre{background:var(--panel);color:#e4ecf3;border-radius:10px;padding:14px 16px;overflow-x:auto;font:13.5px/1.55 var(--mono)}
.prose{max-width:720px}
.prose h1{font-size:38px}
.prose h2{font-size:24px;margin-top:32px}
.prose p,.prose li{color:var(--ink2)}
.prose table{border-collapse:collapse;width:100%;font-size:15px;display:block;overflow-x:auto}
.prose th,.prose td{border-bottom:1px solid var(--line);padding:8px 10px;text-align:left;vertical-align:top}
.crumbs{font-size:14px;color:var(--muted);margin:28px 0 10px}
.cta{background:var(--panel);color:#e4ecf3;border-radius:14px;padding:20px;margin:28px 0}
.cta a{color:#fff}
footer{border-top:1px solid var(--line);margin-top:40px;padding:24px 0 40px;font-size:14px;color:var(--muted)}
footer .wrap{display:flex;flex-wrap:wrap;gap:8px 24px;justify-content:space-between}
footer a{color:var(--ink2)}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
@media (max-width:860px){
 .hero-grid{grid-template-columns:1fr;gap:24px}
 .three{grid-template-columns:1fr}
 h1{font-size:34px}
}
@media (max-width:520px){
 .wrap{padding:0 14px}
 h1{font-size:30px}
 .lede{font-size:17px}
 nav.links{gap:12px;font-size:14px}
 .panel{font-size:12.5px;padding:14px 12px 10px}
 .panel-head,.panel-row{grid-template-columns:1fr repeat(3,46px)}
 .panel-head{font-size:9.5px;letter-spacing:.04em}
 .dom summary{grid-template-columns:1fr}
 .exports{margin-left:0}
 .tool{padding:14px}
}