:root{
  --bg:#0A0E13;
  --panel:#121821;
  --panel-2:#1A222D;
  --border:#243040;
  --text:#DCE4EA;
  --text-dim:#7D8CA0;
  --up:#4ADE80;
  --warn:#F5A623;
  --down:#F0555B;
  --link:#4FC3E8;
  --mono: 'JetBrains Mono', ui-monospace, monospace;
  --sans: 'Inter', -apple-system, sans-serif;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:
    radial-gradient(circle at 15% 0%, rgba(79,195,232,0.06), transparent 40%),
    radial-gradient(circle at 85% 20%, rgba(74,222,128,0.05), transparent 40%),
    var(--bg);
  color:var(--text);
  font-family:var(--sans);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--link);}
:focus-visible{outline:2px solid var(--link); outline-offset:2px;}
.wrap{max-width:1120px; margin:0 auto; padding:0 24px;}

header.top{
  border-bottom:1px solid var(--border);
  position:sticky; top:0; z-index:50;
  background:rgba(10,14,19,0.9);
  backdrop-filter:blur(8px);
}
.top-inner{
  display:flex; align-items:center; justify-content:space-between;
  padding:16px 24px; max-width:1120px; margin:0 auto; gap:16px; flex-wrap:wrap;
}
.brand{
  display:flex; align-items:center; gap:10px;
  font-family:var(--mono); font-weight:700; font-size:18px; color:var(--text);
  text-decoration:none; letter-spacing:0.5px; white-space:nowrap;
}
.brand .dot{
  width:9px;height:9px;border-radius:50%;
  background:var(--up);
  box-shadow:0 0 8px var(--up);
  animation:pulse 2.4s ease-in-out infinite;
}
@keyframes pulse{0%,100%{opacity:1;} 50%{opacity:0.35;}}
nav.toolnav{display:flex; gap:4px; flex-wrap:wrap;}
nav.toolnav a{
  font-family:var(--mono); font-size:12px; text-transform:uppercase; letter-spacing:0.5px;
  color:var(--text-dim); text-decoration:none; padding:6px 10px; border-radius:4px;
  border:1px solid transparent;
}
nav.toolnav a:hover, nav.toolnav a.active{color:var(--text); border-color:var(--border); background:var(--panel);}

.breadcrumb{font-family:var(--mono); font-size:12px; color:var(--text-dim); padding:16px 0 0;}
.breadcrumb a{color:var(--text-dim); text-decoration:none;}
.breadcrumb a:hover{color:var(--link);}

.eyebrow{
  font-family:var(--mono); font-size:12px; color:var(--up);
  text-transform:uppercase; letter-spacing:1.5px; margin-bottom:14px;
  display:flex; align-items:center; gap:8px;
}
.eyebrow::before{content:"●"; font-size:9px;}
h1{font-family:var(--sans); font-weight:700; font-size:clamp(26px,4vw,40px); line-height:1.15; margin:14px 0 16px; color:#fff;}
h2{color:#fff; font-size:22px;}
.sub{color:var(--text-dim); font-size:17px; max-width:60ch; margin:0 0 24px;}

.console{background:var(--panel); border:1px solid var(--border); border-radius:10px; overflow:hidden; margin-top:12px;}
.console-bar{display:flex; align-items:center; gap:8px; padding:10px 14px; border-bottom:1px solid var(--border); background:var(--panel-2); font-family:var(--mono); font-size:11px; color:var(--text-dim);}
.console-bar .led{width:8px;height:8px;border-radius:50%;}
.console-body{padding:20px;}

.field-row{display:flex; gap:10px; flex-wrap:wrap; margin-bottom:14px;}
input[type=text]{font-family:var(--mono); font-size:14px; background:#0D131A; color:var(--text); border:1px solid var(--border); border-radius:6px; padding:10px 12px; flex:1; min-width:180px;}
input[type=text]:focus{border-color:var(--link);}
select{font-family:var(--mono); font-size:13px; background:#0D131A; color:var(--text); border:1px solid var(--border); border-radius:6px; padding:10px 12px;}

.result-grid{display:grid; grid-template-columns:repeat(auto-fit,minmax(150px,1fr)); gap:1px; background:var(--border); border:1px solid var(--border); border-radius:6px; overflow:hidden;}
.result-cell{background:var(--panel); padding:12px 14px;}
.result-cell .k{font-family:var(--mono); font-size:10px; color:var(--text-dim); text-transform:uppercase; letter-spacing:0.5px; margin-bottom:4px;}
.result-cell .v{font-family:var(--mono); font-size:14px; color:var(--text); word-break:break-all;}

.section-label{font-family:var(--mono); font-size:12px; color:var(--text-dim); text-transform:uppercase; letter-spacing:1px; margin:48px 0 18px; display:flex; align-items:center; gap:10px;}
.section-label::after{content:""; flex:1; height:1px; background:var(--border);}

.rack{display:grid; grid-template-columns:repeat(auto-fill,minmax(240px,1fr)); gap:14px;}
.port-card{background:var(--panel); border:1px solid var(--border); border-radius:10px; padding:18px; cursor:pointer; text-decoration:none; color:var(--text); display:block; transition:border-color .15s ease, transform .15s ease;}
.port-card:hover{border-color:var(--link); transform:translateY(-2px);}
.port-head{display:flex; align-items:center; justify-content:space-between; margin-bottom:10px;}
.port-id{font-family:var(--mono); font-size:11px; color:var(--text-dim);}
.port-led{width:8px; height:8px; border-radius:50%; background:var(--border);}
.port-card:hover .port-led{background:var(--up); box-shadow:0 0 6px var(--up);}
.port-title{font-weight:600; font-size:16px; margin-bottom:6px; color:#fff;}
.port-desc{font-size:13px; color:var(--text-dim); line-height:1.5;}

.panel{background:var(--panel); border:1px solid var(--border); border-radius:10px; padding:22px;}
label{font-family:var(--mono); font-size:11px; text-transform:uppercase; letter-spacing:0.5px; color:var(--text-dim); display:block; margin-bottom:6px;}
textarea{width:100%; font-family:var(--mono); font-size:13px; background:#0D131A; color:var(--text); border:1px solid var(--border); border-radius:6px; padding:12px; resize:vertical; min-height:120px;}
textarea:focus{border-color:var(--link);}
.btn{font-family:var(--mono); font-size:12px; text-transform:uppercase; letter-spacing:0.5px; background:var(--panel-2); color:var(--text); border:1px solid var(--border); padding:9px 16px; border-radius:6px; cursor:pointer;}
.btn:hover{border-color:var(--link); color:#fff;}
.btn-row{display:flex; gap:8px; margin:12px 0; flex-wrap:wrap;}
.status-line{font-family:var(--mono); font-size:12px; padding:8px 12px; border-radius:6px; margin-top:12px; display:none;}
.status-line.show{display:block;}
.status-down{background:rgba(240,85,91,0.1); color:var(--down); border:1px solid rgba(240,85,91,0.3);}
.out-block{font-family:var(--mono); font-size:13px; background:#0D131A; border:1px solid var(--border); border-radius:6px; padding:14px; margin-top:14px; white-space:pre-wrap; word-break:break-word; min-height:40px;}
.two-col{display:grid; grid-template-columns:1fr 1fr; gap:16px;}
@media(max-width:640px){.two-col{grid-template-columns:1fr;} nav.toolnav{display:none;}}

.ad-slot{border:1px dashed var(--border); border-radius:8px; background:rgba(255,255,255,0.015); display:flex; align-items:center; justify-content:center; flex-direction:column; gap:4px; color:var(--text-dim); font-family:var(--mono); font-size:11px; text-transform:uppercase; letter-spacing:0.5px; margin:32px 0;}
.ad-slot .ad-tag{font-size:9px; opacity:0.6;}
.ad-slot.leaderboard{min-height:90px;}
.ad-slot.infeed{min-height:100px;}
.ad-slot.intool{min-height:100px; margin-top:20px;}

.article{max-width:70ch; color:var(--text-dim); font-size:15px; line-height:1.75;}
.article h2{font-size:19px; margin-top:36px;}
.article p{margin:0 0 16px;}
.article ul{margin:0 0 16px; padding-left:20px;}
.faq-item{border-top:1px solid var(--border); padding:18px 0;}
.faq-item h3{color:#fff; font-size:15px; margin:0 0 8px;}
.faq-item p{color:var(--text-dim); font-size:14px; margin:0; line-height:1.6;}

.related{display:grid; grid-template-columns:repeat(auto-fill,minmax(200px,1fr)); gap:12px; margin-top:16px;}

footer{border-top:1px solid var(--border); padding:32px 0 60px; margin-top:48px;}
footer p{color:var(--text-dim); font-size:13px; font-family:var(--mono);}
footer a{color:var(--text-dim);}