:root{
  --bg:#070b14; --panel:rgba(13,19,33,.78); --line:rgba(96,165,250,.18);
  --op:#22c55e; --dg:#f59e0b; --dn:#ef4444; --pv:#a78bfa; --un:#64748b;
  --txt:#e2e8f0; --muted:#7c8aa5;
  --font:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%;background:var(--bg);font-family:var(--font);color:var(--txt);overflow:hidden}
#map{position:absolute;inset:0}
.maplibregl-ctrl-attrib{font-size:9px;opacity:.45}

/* ---- top HUD ---- */
#hud-top{position:absolute;top:0;left:0;right:0;z-index:5;padding:14px 18px;
  background:linear-gradient(180deg,rgba(7,11,20,.85),transparent);pointer-events:none}
.brand{display:flex;align-items:center;gap:10px}
.brand-name{font-weight:700;font-size:18px;letter-spacing:.5px;
  background:linear-gradient(135deg,#60a5fa,#a78bfa,#f472b6);-webkit-background-clip:text;
  -webkit-text-fill-color:transparent;background-clip:text}
.brand-sub{font-size:10px;letter-spacing:.28em;color:var(--muted);font-weight:600}
.dot-live{width:9px;height:9px;border-radius:50%;background:var(--op);
  box-shadow:0 0 10px var(--op);animation:blink 2s infinite}
@keyframes blink{0%,100%{opacity:1}50%{opacity:.35}}

/* ---- side panel ---- */
#panel{position:absolute;top:64px;left:18px;z-index:5;width:300px;padding:16px;
  background:var(--panel);backdrop-filter:blur(14px) saturate(160%);
  -webkit-backdrop-filter:blur(14px) saturate(160%);
  border:1px solid var(--line);border-radius:16px;
  box-shadow:0 10px 40px rgba(0,0,0,.5)}
#panel h2{font-size:11px;letter-spacing:.22em;color:var(--muted);font-weight:600;margin-bottom:12px}
#node-list{list-style:none;display:flex;flex-direction:column;gap:10px}
.node{display:flex;align-items:center;gap:11px;padding:10px;border-radius:11px;
  background:rgba(148,163,184,.05);border:1px solid transparent;transition:.25s;cursor:default}
.node:hover{border-color:var(--line);background:rgba(96,165,250,.08)}
.node .pip{width:11px;height:11px;border-radius:50%;flex:none;position:relative}
.node .meta{display:flex;flex-direction:column;line-height:1.3;min-width:0}
.node .nm{font-weight:600;font-size:14px}
.node .rl{font-size:11px;color:var(--muted)}
.legend{display:flex;flex-wrap:nowrap;justify-content:space-between;gap:8px;margin-top:14px;padding-top:12px;
  border-top:1px solid rgba(148,163,184,.12);font-size:10.5px;color:var(--muted)}
.legend span{display:flex;align-items:center;gap:6px}
.legend .d{width:8px;height:8px;border-radius:50%}
.d.op,.pip.op{background:var(--op)} .d.dg,.pip.dg{background:var(--dg)}
.d.dn,.pip.dn{background:var(--dn)} .d.pv,.pip.pv{background:var(--pv)}
.pip.unknown{background:var(--un)}
.pip.op{box-shadow:0 0 8px var(--op)} .pip.dn{box-shadow:0 0 8px var(--dn)}
.pip.dg{box-shadow:0 0 8px var(--dg)} .pip.pv{box-shadow:0 0 8px var(--pv)}

/* ---- bottom strip ---- */
#hud-bottom{position:absolute;bottom:0;left:0;right:0;z-index:5;padding:10px 18px;
  display:flex;align-items:center;gap:12px;font-size:12px;color:var(--muted);
  background:linear-gradient(0deg,rgba(7,11,20,.85),transparent);pointer-events:none}
#hud-bottom b{color:var(--txt)} .sep{opacity:.4}
#mesh-state.healthy b{color:var(--op)} #mesh-state.degraded b{color:var(--dg)}

/* ---- map markers ---- */
.marker{width:12px;height:12px;border-radius:50%;cursor:pointer;
  background:currentColor;box-shadow:0 0 10px currentColor;animation:blink 2s infinite}
.marker.op{color:var(--op)} .marker.dg{color:var(--dg)}
.marker.dn{color:var(--dn)} .marker.unknown{color:var(--un)}
.maplibregl-popup-content{background:#0d1321;color:var(--txt);border:1px solid var(--line);
  border-radius:12px;padding:12px 14px;font-family:var(--font);box-shadow:0 8px 30px rgba(0,0,0,.6)}
.maplibregl-popup-tip{border-top-color:#0d1321!important;border-bottom-color:#0d1321!important}
.pop-nm{font-weight:700;font-size:14px;margin-bottom:2px}
.pop-rl{font-size:11px;color:var(--muted);margin-bottom:8px}
.pop-st{font-size:12px;font-weight:600}
.maplibregl-popup-close-button{color:var(--muted)}

@media(max-width:640px){
  #panel{top:auto;bottom:46px;left:10px;right:10px;width:auto}
  #node-list{flex-direction:row;flex-wrap:wrap}
  .node{flex:1 1 40%}
}