:root{
  --bg:#0a0f1e; --bg2:#0d1428; --panel:#111a30; --panel2:#16213c; --line:#233052;
  --text:#e7ecf7; --muted:#8c99b8; --faint:#5c688a;
  --k8s:#326ce5; --accent:#5b8cff; --ok:#34d399; --warn:#fbbf24; --bad:#f87171; --host:#8b5cf6;
  --prom:#e6522c; --graf:#f59e0b; --radius:14px;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Inter,Roboto,"Helvetica Neue",Arial,sans-serif;
  color-scheme:dark;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:72px}
body{margin:0;background:radial-gradient(1200px 600px at 80% -10%,#162449 0,transparent 60%),var(--bg);
  color:var(--text);font:15px/1.6 var(--sans);-webkit-font-smoothing:antialiased}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3{line-height:1.2;margin:0}
.wrap{max-width:1240px;margin:0 auto;padding:0 clamp(16px,3vw,32px)}
section{padding-block:clamp(40px,7vw,84px)}
.muted{color:var(--muted)} .small{font-size:12.5px}
code,.mono{font-family:var(--mono)}

/* nav */
.nav{position:sticky;top:0;z-index:50;display:flex;align-items:center;gap:20px;padding:10px clamp(16px,3vw,32px);
  background:rgba(10,15,30,.78);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:10px;color:var(--text);font-weight:650}
.brand:hover{text-decoration:none}
.logo{width:22px;height:22px;border-radius:6px;background:var(--k8s);position:relative}
.logo::after{content:"";position:absolute;inset:5px;border:2px solid #fff;border-radius:50%}
.nav nav{display:flex;gap:4px;margin-left:12px;flex:1}
.nav nav a{color:var(--muted);padding:6px 12px;border-radius:8px;font-size:14px}
.nav nav a:hover{color:var(--text);background:var(--panel);text-decoration:none}
.nav-right{display:flex;align-items:center;gap:10px}
.lang{background:var(--panel);color:var(--text);border:1px solid var(--line);border-radius:8px;padding:5px 10px;font:600 12px var(--sans);cursor:pointer}
.lang:hover{border-color:var(--accent)}
.live-pill{display:inline-flex;align-items:center;gap:7px;font:600 12px var(--mono);color:var(--muted);
  border:1px solid var(--line);border-radius:999px;padding:4px 10px;background:var(--panel)}
.live-pill i{width:8px;height:8px;border-radius:50%;background:var(--faint)}
.live-pill.on{color:var(--ok)} .live-pill.on i{background:var(--ok);animation:pulse 2s infinite}
.live-pill.off{color:var(--bad)} .live-pill.off i{background:var(--bad)}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(52,211,153,.6)}70%{box-shadow:0 0 0 8px rgba(52,211,153,0)}100%{box-shadow:0 0 0 0 rgba(52,211,153,0)}}
@media(max-width:720px){.nav nav{display:none}.nav-right{margin-left:auto}}

/* hero */
.hero{padding-top:clamp(40px,8vw,96px);padding-bottom:20px}
.eyebrow{font:600 12px var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--accent);margin:0 0 14px}
.hero h1{font-size:clamp(38px,7vw,72px);letter-spacing:-.03em;font-weight:750;
  background:linear-gradient(90deg,#fff,#9db8ff);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-title{font-size:clamp(18px,2.6vw,26px);color:var(--text);margin:10px 0 0;font-weight:500}
.hero-tag{max-width:760px;color:var(--muted);font-size:clamp(15px,1.6vw,17px);margin:18px 0 0}
.hero-links{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.btn{display:inline-flex;align-items:center;gap:8px;padding:9px 16px;border-radius:10px;border:1px solid var(--line);
  background:var(--panel);color:var(--text);font-weight:600;font-size:14px}
.btn:hover{border-color:var(--accent);text-decoration:none}
.btn.primary{background:var(--k8s);border-color:var(--k8s)}
.btn.primary:hover{filter:brightness(1.12)}
.kpis{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px;margin-top:40px}
.kpi{background:linear-gradient(180deg,var(--panel2),var(--panel));border:1px solid var(--line);border-radius:var(--radius);padding:14px 16px}
.kpi-l{display:block;color:var(--muted);font-size:12px;text-transform:uppercase;letter-spacing:.08em}
.kpi b{display:block;font:650 26px var(--mono);margin-top:4px;letter-spacing:-.02em}
.kpi b.ok{color:var(--ok)} .kpi b.warn{color:var(--warn)} .kpi b.bad{color:var(--bad)}
.served{font:12px var(--mono);color:var(--faint);margin:14px 0 0}
.served b{color:var(--muted);font-weight:600}

/* sections */
.sec-head{margin-bottom:26px;max-width:780px}
.sec-head h2{font-size:clamp(26px,4vw,38px);letter-spacing:-.02em;font-weight:720}
.sec-head p{color:var(--muted);margin:10px 0 0}
.sub-h{margin:44px 0 16px;font-size:18px}
.card{background:linear-gradient(180deg,var(--panel2),var(--panel));border:1px solid var(--line);border-radius:var(--radius);padding:18px}
.card h3{font-size:15px;margin-bottom:12px}
.grid-2{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,420px),1fr));gap:16px;margin-top:16px}
.grid-3{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,260px),1fr));gap:16px;margin-top:16px}

/* tabs */
.tabs{display:inline-flex;background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:4px;margin-bottom:14px;flex-wrap:wrap}
.tabs button{background:none;border:0;color:var(--muted);padding:8px 16px;border-radius:9px;font:600 13.5px var(--sans);cursor:pointer}
.tabs button:hover{color:var(--text)}
.tabs button.on{background:var(--k8s);color:#fff}

/* architecture */
.arch{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:16px;align-items:start}
@media(max-width:1000px){.arch{grid-template-columns:1fr}}
.arch-canvas{padding:12px}
.svg-scroll{overflow-x:auto}
#archSvg{display:block;width:100%;min-width:760px;height:auto}
.legend{display:flex;gap:18px;flex-wrap:wrap;padding:10px 6px 0;color:var(--muted);font-size:12px}
.legend span{display:inline-flex;align-items:center;gap:6px}
.dot{width:9px;height:9px;border-radius:50%;display:inline-block;background:var(--faint)}
.dot.ok{background:var(--ok)} .dot.warn{background:var(--warn)} .dot.bad{background:var(--bad)} .dot.host{background:var(--host)}
.arch-side{position:sticky;top:76px;min-height:300px;max-height:calc(100vh - 100px);overflow:auto}
@media(max-width:1000px){.arch-side{position:static;max-height:none}}
.arch-side h4{margin:0;font-size:18px}
.arch-side .sub{color:var(--muted);font:12px var(--mono);margin:2px 0 12px}
.arch-side p{margin:0 0 12px;color:#c7d0e6;font-size:14px}
.side-label{font:600 11px var(--mono);color:var(--faint);text-transform:uppercase;letter-spacing:.1em;margin:16px 0 8px}
.steps{list-style:none;margin:0;padding:0;counter-reset:s}
.steps li{counter-increment:s;position:relative;padding:10px 12px 10px 42px;border-radius:10px;border:1px solid transparent;
  color:var(--muted);cursor:pointer;font-size:13.5px;margin-bottom:6px}
.steps li::before{content:counter(s);position:absolute;left:10px;top:9px;width:22px;height:22px;border-radius:50%;
  background:var(--panel);border:1px solid var(--line);display:grid;place-items:center;font:600 11px var(--mono)}
.steps li b{display:block;color:var(--text);font-size:14px}
.steps li.on{background:rgba(91,140,255,.1);border-color:var(--accent);color:#cfd9f2}
.steps li.on::before{background:var(--k8s);border-color:var(--k8s);color:#fff}
.play{display:flex;gap:8px;margin-top:10px}
.play button{flex:1}
.kv{display:grid;grid-template-columns:auto 1fr;gap:6px 14px;font-size:13px;margin:0}
.kv dt{color:var(--muted)} .kv dd{margin:0;font-family:var(--mono);text-align:right;word-break:break-word}
.mini-pods{width:100%;border-collapse:collapse;font-size:12.5px}
.mini-pods td{padding:5px 4px;border-top:1px solid var(--line);vertical-align:top}
.mini-pods td:first-child{font-family:var(--mono);word-break:break-all}
.gauge{margin:8px 0}
.gauge .gl{display:flex;justify-content:space-between;font-size:12px;color:var(--muted);margin-bottom:3px}
.gauge .gl b{color:var(--text);font-family:var(--mono);font-weight:600}
.bar{height:7px;border-radius:99px;background:#0b1226;overflow:hidden;border:1px solid var(--line)}
.bar i{display:block;height:100%;border-radius:99px;background:var(--ok);transition:width .6s}
.bar i.warn{background:var(--warn)} .bar i.bad{background:var(--bad)}

/* svg diagram */
#archSvg text{font-family:var(--sans);fill:var(--text);pointer-events:none}
#archSvg .t-mute{fill:var(--muted)}
#archSvg .t-mono{font-family:var(--mono)}
.n-box{fill:rgba(18,28,54,.55);stroke:#2c3b66;stroke-width:1.4}
.n-box.master{stroke:#4b5fa0}
.cl-box{fill:rgba(50,108,229,.04);stroke:#2b4a8f;stroke-width:1.2;stroke-dasharray:6 5}
.card-box{fill:#0e1730;stroke:#26355f;stroke-width:1}
.item{cursor:pointer}
.item rect.bg{fill:#15213f;stroke:#2c3b66;stroke-width:1;transition:.15s}
.item:hover rect.bg,.item:focus rect.bg{stroke:var(--accent);fill:#1a294d}
.item.sel rect.bg{stroke:var(--accent);fill:#1d2f5c;stroke-width:1.6}
.item.dim{opacity:.28}
.item.hl rect.bg{stroke:var(--accent);filter:drop-shadow(0 0 8px rgba(91,140,255,.65))}
.item:focus{outline:none}
.st-ok{fill:var(--ok)} .st-warn{fill:var(--warn)} .st-bad{fill:var(--bad)} .st-host{fill:var(--host)} .st-na{fill:var(--faint)}
.edge{fill:none;stroke:var(--accent);stroke-width:1.8;stroke-linecap:round;opacity:0;transition:opacity .3s}
.edge.show{opacity:.9;stroke-dasharray:7 6;animation:dash 1s linear infinite}
.edge.dim{opacity:.18;animation:none}
.edge.alt{stroke:var(--prom)} .edge.ctl{stroke:var(--host)} .edge.tls{stroke:var(--ok)}
@keyframes dash{to{stroke-dashoffset:-26}}
.edge-label{font:600 10.5px var(--mono);fill:#cdd8f5;paint-order:stroke;stroke:#0a0f1e;stroke-width:4px;opacity:0;transition:opacity .3s}
.edge-label.show{opacity:1}
.packet{fill:#fff;opacity:0}
.pulse-ring{fill:none;stroke:var(--accent);stroke-width:2;opacity:0}
.item.hl .pulse-ring{animation:ring 1.6s infinite}
@keyframes ring{0%{opacity:.8;transform:scale(1)}100%{opacity:0;transform:scale(1.15)}}
@media (prefers-reduced-motion:reduce){.edge.show{animation:none}.live-pill.on i{animation:none}}

/* nodes */
.nodes{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,460px),1fr));gap:16px}
.node-card .nh{display:flex;justify-content:space-between;align-items:flex-start;gap:10px;flex-wrap:wrap}
.node-card h3{font:650 20px var(--mono);margin:0}
.badge{display:inline-block;font:600 11px var(--mono);padding:3px 9px;border-radius:99px;border:1px solid var(--line);color:var(--muted);background:var(--bg2)}
.badge.ok{color:var(--ok);border-color:rgba(52,211,153,.4)} .badge.bad{color:var(--bad);border-color:rgba(248,113,113,.4)}
.badge.warn{color:var(--warn);border-color:rgba(251,191,36,.4)} .badge.k8s{color:var(--accent);border-color:rgba(91,140,255,.4)}
.node-meta{display:grid;grid-template-columns:repeat(2,1fr);gap:4px 16px;margin:14px 0 6px;font-size:12.5px;color:var(--muted)}
.node-meta b{color:var(--text);font-weight:500;font-family:var(--mono);font-size:12px;word-break:break-word}
.gauges{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:2px 20px;margin-top:8px}
.stat{display:flex;align-items:baseline;justify-content:space-between;gap:10px}
.stat b{font:650 28px var(--mono)}
.stat small{color:var(--muted)}
.mini-bar{margin-top:10px}

/* pods table */
.pods-card{margin-top:16px}
.pods-head{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:6px}
.pods-head h3{margin:0}
input[type=search]{background:var(--bg2);color:var(--text);border:1px solid var(--line);border-radius:9px;padding:8px 12px;font:13px var(--sans);min-width:220px}
input[type=search]:focus{outline:none;border-color:var(--accent)}
.chips{display:flex;gap:6px;flex-wrap:wrap;margin:10px 0}
.chip{background:var(--bg2);border:1px solid var(--line);color:var(--muted);border-radius:99px;padding:3px 11px;font:12px var(--mono);cursor:pointer}
.chip:hover{color:var(--text);border-color:var(--accent)}
.chip.on{background:var(--k8s);color:#fff;border-color:var(--k8s)}
.table-wrap{overflow:auto;max-height:430px;border-radius:10px;border:1px solid var(--line)}
table{width:100%;border-collapse:collapse;font-size:13px}
th{position:sticky;top:0;background:#101a33;text-align:left;color:var(--muted);font:600 11px var(--mono);text-transform:uppercase;letter-spacing:.08em;padding:9px 12px;z-index:1}
td{padding:7px 12px;border-top:1px solid var(--line);white-space:nowrap}
td.pn{font-family:var(--mono);font-size:12.5px;max-width:380px;overflow:hidden;text-overflow:ellipsis}
tr:hover td{background:rgba(91,140,255,.05)}
.sdot{display:inline-flex;align-items:center;gap:7px;font-size:12.5px}
.sdot i{width:8px;height:8px;border-radius:50%;background:var(--faint);display:inline-block}
.sdot.ok i{background:var(--ok)} .sdot.warn i{background:var(--warn)} .sdot.bad i{background:var(--bad)}

.list-row{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:9px 0;border-top:1px solid var(--line);font-size:13.5px;flex-wrap:wrap}
.list-row:first-child{border-top:0}
.list-row .mono{font-size:12.5px}
.wl{display:flex;flex-direction:column;gap:6px}
.wl .big{font:650 30px var(--mono)} .wl .big small{font-size:15px;color:var(--muted);font-weight:500}

/* observability */
.pipe-card svg{display:block;width:100%;min-width:760px;height:auto}
.pipe-card svg .flow{stroke-dashoffset:0}
.pipe-card text{font-family:var(--sans);fill:var(--text)}
.cta-row{display:flex;gap:14px;align-items:center;flex-wrap:wrap;margin-top:6px}
.chart{position:relative}
.chart svg{display:block;width:100%;height:auto}
.chart .tip{position:absolute;pointer-events:none;background:#0a1226;border:1px solid var(--line);border-radius:8px;padding:6px 9px;font:12px var(--mono);opacity:0;transition:opacity .1s;white-space:nowrap;z-index:2}
.chart-legend{display:flex;gap:16px;font-size:12px;color:var(--muted);margin-top:6px;flex-wrap:wrap}
.chart-legend i{display:inline-block;width:10px;height:3px;border-radius:2px;margin-right:6px;vertical-align:middle}
.alert-item{display:grid;grid-template-columns:auto 1fr auto;gap:12px;align-items:center;padding:12px;border:1px solid var(--line);border-radius:10px;margin-top:8px;background:var(--bg2)}
.alert-item .sev{font:700 11px var(--mono);text-transform:uppercase;padding:3px 9px;border-radius:6px}
.sev.critical{background:rgba(248,113,113,.15);color:var(--bad)} .sev.warning{background:rgba(251,191,36,.14);color:var(--warn)}
.sev.none,.sev.info{background:rgba(91,140,255,.14);color:var(--accent)}
.alert-item .an{font-weight:600}
.alert-item .ad{color:var(--muted);font-size:12.5px}
.rules{display:grid;gap:10px;margin-top:10px}
.rule{border:1px solid var(--line);border-radius:10px;padding:12px 14px;background:var(--bg2)}
.rule-h{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-bottom:8px}
.rule-h b{font-family:var(--mono);font-size:14px}
.rule pre{margin:0;overflow:auto;font:12px/1.5 var(--mono);color:#b7c4e6;background:#0a1226;border:1px solid var(--line);border-radius:8px;padding:10px}
.empty{color:var(--muted);padding:12px 0;font-size:14px}

/* stack */
.stack-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(100%,270px),1fr));gap:14px}
.tech{padding:16px}
.tech .th{display:flex;align-items:center;gap:10px;margin-bottom:8px}
.tech .ic{width:34px;height:34px;border-radius:9px;display:grid;place-items:center;font:700 12px var(--mono);color:#fff;flex:none}
.tech h4{margin:0;font-size:15px}
.tech .ver{font:11.5px var(--mono);color:var(--muted)}
.tech p{margin:0;color:#b7c2dc;font-size:13.5px}
.timeline{list-style:none;margin:0;padding:0 0 0 18px;border-left:2px solid var(--line)}
.timeline li{position:relative;padding:0 0 22px 24px}
.timeline li::before{content:"";position:absolute;left:-26px;top:5px;width:12px;height:12px;border-radius:50%;background:var(--k8s);border:3px solid var(--bg)}
.timeline time{font:600 12px var(--mono);color:var(--accent)}
.timeline b{display:block;margin:2px 0}
.timeline span{color:var(--muted);font-size:14px}
.skills{display:flex;flex-wrap:wrap;gap:8px}
.skill{background:var(--panel);border:1px solid var(--line);border-radius:99px;padding:6px 14px;font-size:13px}

.foot{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;padding-block:32px;border-top:1px solid var(--line);font-size:13px;color:var(--muted)}
.banner{background:rgba(248,113,113,.12);border:1px solid rgba(248,113,113,.4);color:#fecaca;padding:10px 14px;border-radius:10px;margin-bottom:14px;font-size:13.5px}
.skeleton{color:var(--faint)}