:root {
  --bg-void:#080C14; --bg-app:#0D1117; --bg-panel:#111827; --bg-card:#1C2333;
  --bg-rack:#0D1117; --bg-slot:#131921;
  --border-dim:rgba(255,255,255,.06); --border-mid:rgba(255,255,255,.10); --border-hi:rgba(255,255,255,.18);
  --text-1:#E6EDF3; --text-2:#8B949E; --text-3:#484F58; --text-code:#79C0FF;
  --esaa:#388BFD; --esaa-dim:rgba(56,139,253,.12);
  --acca:#3FB950; --acca-dim:rgba(63,185,80,.12);
  --office:#D29922;
  --fiber:#F97316; --internet:#38BDF8; --lab:#34D399; --wireless:#A78BFA;
  --danger:#F85149; --warn:#D29922; --ok:#3FB950;
  --v30:#F97316; --v31:#FB923C; --v32:#FBBF24; --v33:#34D399; --v34:#22D3EE;
  --v35:#F472B6; --v36:#E879F9; --v37:#A78BFA; --v38:#818CF8; --v39:#60A5FA;
  --v10:#D29922; --v20:#3FB950; --v40:#38BDF8; --v99:#F85149;
  --shadow:0 1px 0 rgba(255,255,255,.04),0 8px 32px rgba(0,0,0,.4);
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{background:var(--bg-void);color:var(--text-1);font:14px/1.5 "IBM Plex Sans",system-ui,sans-serif;min-height:100vh}
code,.mono{font-family:"IBM Plex Mono",ui-monospace,monospace}
h1,h2,h3,h4{font-family:"Syne",system-ui,sans-serif;font-weight:700;letter-spacing:-0.01em}
a{color:var(--esaa);text-decoration:none}
a:hover{text-decoration:underline}

/* ─── Layout ─── */
body{display:grid;grid-template-columns:220px 1fr;grid-template-rows:auto 1fr auto;grid-template-areas:"top top" "nav main" "foot foot";min-height:100vh}
.topbar{grid-area:top;display:flex;justify-content:space-between;align-items:center;padding:14px 24px;background:var(--bg-panel);border-bottom:1px solid var(--border-dim);gap:24px}
.brand{display:flex;align-items:center;gap:14px}
.brand-mark{color:var(--esaa);font-size:22px;text-shadow:0 0 16px var(--esaa)}
.brand h1{font-size:18px}
.subtitle{color:var(--text-2);font-size:12px}
.topbar-meta{display:flex;gap:8px}
.chip{padding:4px 10px;background:var(--bg-card);border:1px solid var(--border-dim);border-radius:999px;font-size:12px;color:var(--text-2)}
.chip span{color:var(--text-1);font-weight:600}

.sidenav{grid-area:nav;background:var(--bg-panel);border-right:1px solid var(--border-dim);padding:12px 0}
.sidenav a{display:block;padding:10px 20px;color:var(--text-2);border-left:2px solid transparent;font-size:13px}
.sidenav a:hover{background:rgba(56,139,253,.08);color:var(--text-1);text-decoration:none}
.sidenav a.active{color:var(--esaa);border-left-color:var(--esaa);background:var(--esaa-dim)}

.view{grid-area:main;padding:24px;overflow:auto}
.loading{color:var(--text-2);padding:40px;text-align:center}

.foot{grid-area:foot;display:flex;gap:24px;padding:10px 24px;background:var(--bg-panel);border-top:1px solid var(--border-dim);color:var(--text-3);font-size:12px}
.foot a{color:var(--text-2)}

/* ─── Generic ─── */
.page-head{margin-bottom:20px}
.page-head h2{font-size:24px;margin-bottom:6px}
.page-head p{color:var(--text-2);font-size:13px}

.grid{display:grid;gap:16px}
.grid-4{grid-template-columns:repeat(4,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
@media (max-width:900px){.grid-4,.grid-3,.grid-2{grid-template-columns:1fr}}

.card{background:var(--bg-card);border:1px solid var(--border-dim);border-radius:8px;padding:16px;box-shadow:var(--shadow)}
.card h3{font-size:13px;color:var(--text-2);font-weight:500;font-family:"IBM Plex Sans",sans-serif;letter-spacing:.04em;text-transform:uppercase;margin-bottom:8px}
.kpi .value{font-size:32px;font-family:"Syne";font-weight:800;color:var(--text-1)}
.kpi .sub{font-size:12px;color:var(--text-3);margin-top:4px}

/* ─── Tables ─── */
table{width:100%;border-collapse:collapse;font-size:13px}
th,td{text-align:left;padding:8px 12px;border-bottom:1px solid var(--border-dim)}
th{background:var(--bg-panel);color:var(--text-2);font-weight:500;font-size:11px;text-transform:uppercase;letter-spacing:.06em;position:sticky;top:0;cursor:pointer;user-select:none}
th:hover{color:var(--text-1)}
tr:hover td{background:rgba(255,255,255,.02)}
td code{color:var(--text-code);font-size:12px}
.pill{display:inline-block;padding:2px 8px;border-radius:999px;font-size:11px;font-weight:500;border:1px solid}
.pill-exam{background:rgba(249,115,22,.1);color:#FDBA74;border-color:rgba(249,115,22,.3)}
.pill-mgmt{background:rgba(56,189,248,.1);color:#7DD3FC;border-color:rgba(56,189,248,.3)}
.pill-infra{background:rgba(63,185,80,.1);color:#86EFAC;border-color:rgba(63,185,80,.3)}
.pill-wan{background:rgba(248,81,73,.1);color:#FCA5A5;border-color:rgba(248,81,73,.3)}
.pill-corp{background:rgba(210,153,34,.1);color:#FDE68A;border-color:rgba(210,153,34,.3)}
.pill-ok{background:rgba(63,185,80,.15);color:#86EFAC;border-color:rgba(63,185,80,.4)}
.pill-warn{background:rgba(210,153,34,.15);color:#FDE68A;border-color:rgba(210,153,34,.4)}
.pill-err{background:rgba(248,81,73,.15);color:#FCA5A5;border-color:rgba(248,81,73,.4)}

.search{display:flex;gap:8px;margin-bottom:16px}
.search input{flex:1;background:var(--bg-panel);border:1px solid var(--border-dim);border-radius:6px;padding:8px 12px;color:var(--text-1);font:inherit}
.search input:focus{outline:none;border-color:var(--esaa);box-shadow:0 0 0 3px rgba(56,139,253,.2)}

/* ─── Floor plan ─── */
.floor{background:var(--bg-panel);border:1px solid var(--border-dim);border-radius:8px;padding:24px}
.floor-title{display:flex;justify-content:space-between;margin-bottom:16px}
.floor-title .legend{display:flex;gap:12px;font-size:11px;color:var(--text-2)}
.swatch{display:inline-block;width:10px;height:10px;border-radius:2px;margin-right:4px;vertical-align:middle}
.ap-row{display:flex;justify-content:space-around;margin-bottom:14px;padding:0 40px}
.ap{padding:6px 10px;background:rgba(167,139,250,.1);color:#C4B5FD;border:1px dashed var(--wireless);border-radius:6px;font-size:11px}
.pc-grid{display:grid;grid-template-columns:repeat(15,1fr);gap:3px;margin-bottom:16px;padding:12px;background:var(--bg-void);border-radius:6px}
.pc{aspect-ratio:1;border-radius:2px;border:1px solid var(--border-dim);display:flex;align-items:center;justify-content:center;font-size:8px;color:var(--text-3);cursor:pointer;transition:transform .1s}
.pc:hover{transform:scale(1.5);z-index:10;position:relative;color:var(--text-1);border-color:var(--esaa);box-shadow:0 0 0 2px var(--esaa)}
.pc.off{background:rgba(255,255,255,.03);color:var(--text-3);opacity:.4}
.rack-row{display:grid;grid-template-columns:repeat(5,1fr);gap:12px;margin-top:8px}
.rack{background:var(--bg-rack);border:1px solid var(--rack-border,var(--border-mid));border-radius:6px;padding:12px;text-align:center}
.rack.middle{border-color:var(--fiber);box-shadow:0 0 16px rgba(249,115,22,.2)}
.rack h4{font-size:12px;color:var(--text-1);margin-bottom:6px}
.rack .rack-meta{font-size:10px;color:var(--text-2);line-height:1.6}
.rack code{display:block;font-size:11px;color:var(--text-code);margin-top:4px}

/* ─── VLAN colour helpers ─── */
.v10{background:rgba(210,153,34,.18)}
.v20{background:rgba(63,185,80,.18)}
.v30{background:rgba(249,115,22,.22)}
.v31{background:rgba(251,146,60,.22)}
.v32{background:rgba(251,191,36,.22)}
.v33{background:rgba(52,211,153,.22)}
.v34{background:rgba(34,211,238,.22)}
.v35{background:rgba(244,114,182,.22)}
.v36{background:rgba(232,121,249,.22)}
.v37{background:rgba(167,139,250,.22)}
.v38{background:rgba(129,140,248,.22)}
.v39{background:rgba(96,165,250,.22)}
.v40{background:rgba(56,189,248,.18)}
.v99{background:rgba(248,81,73,.18)}

/* ─── Rack view ─── */
.racks{display:grid;grid-template-columns:repeat(5,1fr);gap:16px}
.rack-card{background:var(--bg-rack);border:1px solid var(--border-mid);border-radius:6px;padding:14px}
.rack-card h4{font-size:13px;margin-bottom:10px;color:var(--text-1)}
.u-slot{background:var(--bg-slot);border:1px solid var(--border-dim);border-radius:4px;padding:8px 10px;margin-bottom:4px;font-size:11px}
.u-slot.sw{border-left:3px solid var(--esaa)}
.u-slot.agg{border-left:3px solid var(--fiber)}
.u-slot.vts{border-left:3px solid var(--acca)}
.u-slot.idrac{border-left:3px solid var(--wireless)}
.u-slot .host{color:var(--text-1);font-weight:500}
.u-slot .meta{color:var(--text-2);font-size:10px}

/* ─── Topology ─── */
.topo{background:var(--bg-panel);border:1px solid var(--border-dim);border-radius:8px;padding:24px;overflow:auto}
.topo svg{width:100%;height:720px;display:block}
.topo .node rect{stroke-width:1.5}
.topo .node text{font:500 11px "IBM Plex Sans";fill:var(--text-1)}
.topo .node:hover rect{filter:brightness(1.2)}
.topo .edge{fill:none}
.topo .edge-label{font:500 9px "IBM Plex Mono";fill:var(--text-2)}

/* ─── ACL matrix ─── */
.acl-matrix{display:grid;grid-template-columns:auto repeat(14,1fr);gap:1px;background:var(--border-dim);border-radius:6px;overflow:hidden;font-size:10px}
.acl-matrix .cell{background:var(--bg-card);padding:4px;text-align:center;min-height:22px}
.acl-matrix .header{background:var(--bg-panel);font-weight:500;color:var(--text-2)}
.acl-matrix .permit{background:rgba(63,185,80,.25);color:#86EFAC}
.acl-matrix .deny{background:rgba(248,81,73,.25);color:#FCA5A5}
.acl-matrix .self{background:var(--bg-slot);color:var(--text-3)}
.mode-toggle{display:flex;gap:6px;margin-bottom:16px}
.mode-toggle button{background:var(--bg-card);border:1px solid var(--border-dim);color:var(--text-2);padding:6px 14px;border-radius:6px;cursor:pointer;font:inherit;font-size:12px}
.mode-toggle button.active{background:var(--esaa-dim);color:var(--esaa);border-color:var(--esaa)}

/* ─── Compliance ─── */
.compliance-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(340px,1fr));gap:12px}
.check{background:var(--bg-card);border:1px solid var(--border-dim);border-left-width:3px;border-radius:6px;padding:14px}
.check.pass{border-left-color:var(--ok)}
.check.partial{border-left-color:var(--warn)}
.check.fail{border-left-color:var(--danger)}
.check .id{font-family:"IBM Plex Mono";font-size:11px;color:var(--text-2);margin-bottom:4px}
.check .req{font-weight:500;margin-bottom:6px}
.check .ref{font-size:11px;color:var(--text-3);margin-bottom:8px}
.check .ev{font-size:12px;color:var(--text-2);border-top:1px solid var(--border-dim);padding-top:8px;margin-top:8px}

/* ─── Changelog ─── */
.changelog{max-width:760px}
.change{border-left:2px solid var(--border-mid);padding:0 0 20px 20px;position:relative;margin-left:8px}
.change::before{content:"";position:absolute;left:-6px;top:2px;width:10px;height:10px;border-radius:50%;background:var(--esaa)}
.change.breaking::before{background:var(--warn)}
.change .ver{font-family:"Syne";font-weight:700;font-size:18px}
.change .date{color:var(--text-3);font-size:12px;margin-bottom:4px}

@media print{
  .sidenav,.topbar-meta,.foot{display:none}
  body{grid-template-columns:1fr}
  .view{padding:0}
}

/* ─── Server Rooms view ─── */
.sr-panel{background:var(--bg-panel);border:1px solid var(--border-dim);border-radius:10px;margin-bottom:18px;box-shadow:var(--shadow)}
.sr-panel-head{display:flex;align-items:center;gap:14px;padding:14px 18px;border-bottom:1px solid var(--border-dim)}
.sr-panel-head h3{font-size:16px;flex:1}
.sr-badge{background:var(--esaa-dim);color:var(--esaa);font-family:"IBM Plex Mono",monospace;font-size:10px;letter-spacing:1px;padding:3px 8px;border-radius:3px;text-transform:uppercase}
.sr-count{color:var(--text-2);font-size:11px;font-family:"IBM Plex Mono",monospace}
.sr-body{display:flex;gap:20px;padding:18px;flex-wrap:wrap}
.sr-rack-wrap{flex-shrink:0;min-width:280px}
.sr-rack-lbl{font-family:"IBM Plex Mono",monospace;font-size:10px;color:var(--text-2);letter-spacing:1px;margin-bottom:6px}
.sr-rack{background:var(--bg-rack);border:1px solid var(--border-mid);border-radius:6px;overflow:hidden}
.sr-rack-hdr{display:flex;justify-content:space-between;padding:8px 12px;border-bottom:1px solid var(--border-dim);background:var(--bg-panel);font-family:"IBM Plex Mono",monospace;font-size:10px;color:var(--text-2);letter-spacing:1px}
.sr-slot{display:flex;align-items:center;gap:10px;padding:10px 12px;background:var(--bg-slot);border-bottom:1px solid var(--border-dim);transition:background .12s}
.sr-slot:last-child{border-bottom:none}
.sr-slot:hover{background:rgba(56,139,253,.06)}
.sr-slot-num{font-family:"IBM Plex Mono",monospace;font-size:9px;color:var(--text-3);width:18px;text-align:right}
.sr-slot-info{flex:1;min-width:0}
.sr-slot-host{font-family:"IBM Plex Mono",monospace;font-size:11px;font-weight:500;color:var(--text-code);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.sr-slot-model{font-size:10px;color:var(--text-2);margin-top:1px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.sr-slot-badge{font-size:9px;padding:2px 7px;border-radius:3px;background:var(--bg-card);color:var(--text-2);font-family:"IBM Plex Mono",monospace;text-transform:uppercase}
.sr-slot.sr-core .sr-slot-badge{background:rgba(56,189,248,.15);color:var(--internet)}
.sr-slot.sr-sw .sr-slot-badge{background:rgba(56,139,253,.15);color:var(--esaa)}
.sr-slot.sr-vts .sr-slot-badge{background:rgba(63,185,80,.15);color:var(--acca)}
.sr-slot.sr-srv .sr-slot-badge{background:rgba(249,115,22,.15);color:var(--fiber)}
.sr-slot.sr-rtr .sr-slot-badge{background:rgba(248,81,73,.15);color:var(--danger)}
.sr-slot.sr-idrac .sr-slot-badge{background:rgba(210,153,34,.15);color:var(--warn)}
.sr-floor-area{flex:1;min-width:260px}
.sr-floor-title{font-family:"IBM Plex Mono",monospace;font-size:10px;color:var(--text-2);letter-spacing:1px;margin-bottom:10px}
.sr-floor-row{display:flex;flex-wrap:wrap;gap:10px}
.sr-floor-node{background:var(--bg-card);border:1px solid var(--border-dim);border-radius:6px;padding:10px 12px;min-width:140px}
.sr-floor-node:hover{border-color:var(--border-hi)}
.sr-floor-host{font-family:"IBM Plex Mono",monospace;font-size:11px;color:var(--text-code)}
.sr-floor-role{font-size:10px;color:var(--text-2);margin-top:2px;text-transform:uppercase;letter-spacing:.5px}