:root {
  --bg:          #f7f7f8;
  --panel:       #ffffff;
  --chrome:      #ffffff;
  --chrome-2:    #f2f2f3;
  --line:        #e4e4e8;
  --line-soft:   #eeeef1;
  --ink:         #17181c;
  --ink-soft:    #5a5c65;
  --muted:       #8e909a;
  --link:        #3354e6;
  --sw-blue:     #3354e6;
  --accent:      oklch(0.55 0.18 250);
  --up:          #117a2b;
  --up-soft:     #dcf1de;
  --down:        #b11515;
  --down-soft:   #f4d6d3;
  --warn:        #b37600;
  --warn-soft:   #f5e9ca;
  --fiber:       #6f2aa0;
  --poe:         #1a7ba0;
  --row-hover:   #f3f3f5;
  --row-sel:     #dfe8ff;
  --row-sel-b:   #3354e6;
  --mono:        "JetBrains Mono", ui-monospace, "Courier New", monospace;
  --sans:        "Inter", system-ui, -apple-system, Segoe UI, sans-serif;
}

body[data-theme="noc"] {
  --bg:#0d1014;--panel:#12161c;--chrome:#1a1f27;--chrome-2:#222833;
  --line:#2a3140;--line-soft:#1c2230;--ink:#e8ecf4;--ink-soft:#a8b0bf;
  --muted:#6e7787;--link:#7ea8ff;--sw-blue:#4c86ff;
  --up:#39d66b;--up-soft:#11351e;--down:#ff5a4a;--down-soft:#3a1614;
  --warn:#ffb545;--warn-soft:#3a2a0e;--fiber:#c08bff;--poe:#5ac7e8;
  --row-hover:#1a2030;--row-sel:#17315f;--row-sel-b:#4c86ff;
}
body[data-theme="classic"] {
  --bg:#fdfdfb;--chrome:#e9e7df;--chrome-2:#d9d6c8;--line:#c9c4b3;--line-soft:#e4e1d3;
  --sw-blue:#2845b8;--link:#1a3aaa;--row-hover:#f1eedf;
}

* { box-sizing: border-box; }
html, body { margin:0; padding:0; height:100%; background: var(--bg); color: var(--ink); font-family: var(--sans); font-size: 13px; -webkit-font-smoothing: antialiased; }
.hidden { display: none !important; }
a { color: var(--link); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ── LOGIN ─────────────────────────────────────────────── */
.login-wrap {
  position: fixed; inset: 0; display: grid; place-items: center;
  background:
    radial-gradient(1200px 600px at 20% -10%, rgba(51,84,230,0.12), transparent 60%),
    radial-gradient(900px 500px at 100% 110%, rgba(51,84,230,0.08), transparent 60%),
    var(--bg);
}
.login-card {
  width: 380px; background: var(--panel); border: 1px solid var(--line);
  border-radius: 8px; padding: 28px; box-shadow: 0 20px 60px rgba(0,0,0,.08);
}
.login-brand { display: flex; gap: 12px; align-items: center; margin-bottom: 22px; }
.login-brand .brand-ico {
  width: 42px; height: 42px; border-radius: 8px;
  background: linear-gradient(135deg, #3354e6, #5a7bff);
  color: #fff; display: grid; place-items: center;
  font-weight: 800; font-size: 16px; letter-spacing: -0.5px;
  box-shadow: 0 4px 12px rgba(51,84,230,.3);
}
.login-brand h1 { font: 600 17px var(--sans); margin: 0; color: var(--ink); }
.login-brand p { font: 400 12px var(--sans); margin: 2px 0 0; color: var(--muted); }

#login-form label { display: block; font-size: 11px; font-weight: 500; color: var(--ink-soft); margin-bottom: 10px; }
#login-form input[type=text], #login-form input[type=password] {
  width: 100%; margin-top: 4px; padding: 8px 10px;
  border: 1px solid var(--line); border-radius: 5px;
  font: 400 13px var(--sans); background: var(--bg); color: var(--ink);
  outline: none;
}
#login-form input:focus { border-color: var(--sw-blue); box-shadow: 0 0 0 3px rgba(51,84,230,.15); }

.login-row { display: flex; justify-content: space-between; align-items: center; margin: 10px 0 14px; font-size: 12px; }
.chk { display: inline-flex; align-items: center; gap: 5px; color: var(--ink-soft); font-weight: 400 !important; margin: 0 !important; }
.lnk { color: var(--link); font-size: 12px; }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 6px; padding: 9px 14px; border: 1px solid var(--line); background: var(--panel); color: var(--ink); border-radius: 5px; cursor: pointer; font: 500 13px var(--sans); }
.btn:hover { background: var(--row-hover); }
.btn-primary { width: 100%; background: var(--sw-blue); color: #fff; border-color: var(--sw-blue); font-weight: 600; padding: 10px; }
.btn-primary:hover { background: #2644c9; }
.btn-sm { padding: 4px 8px; font-size: 11px; gap: 4px; }

.login-hint { text-align: center; margin-top: 10px; font-size: 11px; color: var(--muted); }
.login-hint code { background: var(--chrome-2); padding: 1px 4px; border-radius: 3px; font-family: var(--mono); font-size: 11px; }
.login-foot { display: flex; gap: 10px; margin-top: 18px; padding-top: 14px; border-top: 1px solid var(--line); font-size: 10.5px; color: var(--muted); font-family: var(--mono); }
.login-foot span:first-child, .login-foot span:nth-child(2), .login-foot span:nth-child(3) { color: var(--up); }

/* ── WINDOW SHELL ─────────────────────────────────────── */
.window {
  height: 100vh; display: grid;
  grid-template-rows: 36px 1fr 22px; background: var(--bg);
}
.titlebar {
  background: linear-gradient(180deg, var(--chrome) 0%, var(--chrome-2) 100%);
  border-bottom: 1px solid var(--line);
  display: flex; align-items: center; padding: 0 12px; gap: 8px;
  font-size: 12px; font-weight: 600; color: var(--ink);
  user-select: none;
}
.titlebar .app-ico { width: 22px; height: 22px; display: grid; place-items: center; background: var(--sw-blue); color: #fff; border-radius: 4px; font-size: 10px; font-weight: 800; letter-spacing: -0.5px; }
.titlebar .title-sep { color: var(--muted); font-weight: 400; }
.titlebar .clock { font-family: var(--mono); color: var(--ink-soft); font-size: 11px; padding: 0 6px; }
.titlebar .tb-live { display:flex; align-items:center; gap: 5px; color: var(--up); font-size: 11px; font-weight: 500; }
.titlebar .tb-live .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--up); box-shadow: 0 0 6px var(--up); animation: pulse 1.6s ease-in-out infinite; }
@keyframes pulse { 50% { opacity: .3; } }

.user-chip {
  display: flex; align-items: center; gap: 6px;
  padding: 3px 8px; border: 1px solid var(--line); border-radius: 16px;
  background: var(--panel); cursor: pointer; color: var(--ink-soft);
}
.user-chip:hover { background: var(--row-hover); }
.user-chip .avatar { width: 20px; height: 20px; border-radius: 50%; background: var(--sw-blue); color: #fff; display: grid; place-items: center; font-size: 10px; font-weight: 700; text-transform: uppercase; }

/* Layout: sidebar + main */
.layout { display: grid; grid-template-columns: 210px 1fr; min-height: 0; }
.sidebar {
  background: var(--panel); border-right: 1px solid var(--line);
  display: flex; flex-direction: column; min-height: 0;
}
.sidebar nav { padding: 8px 6px; flex: 1; overflow: auto; }
.nav-item {
  display: flex; align-items: center; gap: 10px;
  padding: 7px 10px; margin-bottom: 2px; border-radius: 5px;
  color: var(--ink-soft); font-size: 13px; font-weight: 500;
  text-decoration: none !important;
}
.nav-item svg { color: var(--muted); flex-shrink: 0; }
.nav-item:hover { background: var(--row-hover); color: var(--ink); }
.nav-item:hover svg { color: var(--ink); }
.nav-item.active { background: var(--row-sel); color: var(--row-sel-b); }
.nav-item.active svg { color: var(--row-sel-b); }
.nav-badge { margin-left: auto; background: var(--down); color: #fff; font-size: 10px; padding: 1px 6px; border-radius: 10px; font-weight: 600; }
.nav-divider { height: 1px; background: var(--line); margin: 8px 8px; }

.sidebar-foot {
  padding: 10px; border-top: 1px solid var(--line);
  display: flex; align-items: center; justify-content: space-between; gap: 8px;
}
.db-info { font-family: var(--mono); font-size: 10px; line-height: 1.3; min-width: 0; }
.db-info .db-lbl { color: var(--muted); }
.db-info .db-val { color: var(--ink-soft); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

.route-view { overflow: auto; background: var(--bg); min-width: 0; }

/* Status bar */
.statusbar {
  background: var(--chrome); border-top: 1px solid var(--line);
  display: flex; align-items: center; padding: 0 10px; gap: 12px;
  font-size: 11px; color: var(--ink-soft); font-family: var(--mono);
}
.statusbar .sp { color: var(--line); }
.statusbar .right { margin-left: auto; display: flex; gap: 12px; }

/* ── COMMON UI ────────────────────────────────────────── */
.page { padding: 18px 22px; }
.page-head { display: flex; align-items: flex-end; gap: 14px; margin-bottom: 16px; }
.page-head h2 { margin: 0; font: 600 20px var(--sans); color: var(--ink); }
.page-head p { margin: 2px 0 0; color: var(--muted); font-size: 12px; }
.page-head .ph-actions { margin-left: auto; display: flex; gap: 6px; }

.card { background: var(--panel); border: 1px solid var(--line); border-radius: 6px; }
.card h3 { margin: 0; padding: 10px 14px; font: 600 11px var(--sans); text-transform: uppercase; letter-spacing: 0.8px; color: var(--muted); border-bottom: 1px solid var(--line); }

/* KPI grid */
.kpi-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 10px; margin-bottom: 16px; }
.kpi-card { background: var(--panel); border: 1px solid var(--line); border-radius: 6px; padding: 12px 14px; }
.kpi-card .lbl { font: 500 10px var(--sans); text-transform: uppercase; letter-spacing: 0.8px; color: var(--muted); margin-bottom: 6px; }
.kpi-card .val { font: 600 22px var(--mono); color: var(--ink); line-height: 1; }
.kpi-card .val.up { color: var(--up); }
.kpi-card .val.down { color: var(--down); }
.kpi-card .val .unit { font-size: 12px; color: var(--muted); margin-left: 4px; font-weight: 400; }
.kpi-card .sub { font-size: 10.5px; color: var(--muted); margin-top: 4px; font-family: var(--mono); }

/* Table */
table.tbl { width: 100%; border-collapse: collapse; font-family: var(--mono); font-size: 12px; }
table.tbl thead th { position: sticky; top: 0; background: var(--chrome); padding: 6px 12px; border-bottom: 1px solid var(--line); text-align: left; font: 600 10px var(--sans); text-transform: uppercase; letter-spacing: 0.5px; color: var(--muted); white-space: nowrap; }
table.tbl tbody tr { border-bottom: 1px solid var(--line-soft); }
table.tbl tbody tr:hover { background: var(--row-hover); }
table.tbl tbody tr.selected { background: var(--row-sel); }
table.tbl tbody td { padding: 5px 12px; vertical-align: middle; white-space: nowrap; }

/* Dot labels */
.dotlbl { display: inline-flex; align-items: center; gap: 5px; }
.dotlbl .d { width: 7px; height: 7px; border-radius: 50%; }
.dotlbl .d.up { background: var(--up); box-shadow: 0 0 0 2px var(--up-soft); }
.dotlbl .d.down { background: var(--down); }
.dotlbl .d.warn { background: var(--warn); }
.dotlbl .d.fiber { background: var(--fiber); }
.dotlbl .d.uplink { background: var(--poe); }

.badge { display: inline-flex; align-items: center; gap: 4px; padding: 2px 7px; border-radius: 10px; font-family: var(--mono); font-size: 10.5px; background: var(--chrome-2); color: var(--ink-soft); border: 1px solid var(--line); }
.badge.up { background: var(--up-soft); color: var(--up); border-color: transparent; }
.badge.down { background: var(--down-soft); color: var(--down); border-color: transparent; }
.badge.warn { background: var(--warn-soft); color: var(--warn); border-color: transparent; }

/* Toolbar (inside pages) */
.pg-toolbar { display: flex; align-items: center; gap: 6px; margin-bottom: 12px; }
.pg-toolbar .search { margin-left: auto; display: flex; align-items: center; gap: 4px; background: var(--panel); border: 1px solid var(--line); border-radius: 5px; padding: 4px 8px; min-width: 280px; }
.pg-toolbar .search input { border: 0; outline: 0; background: transparent; width: 100%; font-family: var(--mono); font-size: 12px; color: var(--ink); }

/* ── NETWORK BROWSER (ported from Network Browser.html) ─ */
.nb-split { display: grid; grid-template-columns: minmax(420px, 58%) 6px 1fr; min-height: 0; background: var(--panel); border: 1px solid var(--line); border-radius: 6px; overflow: hidden; height: calc(100vh - 36px - 22px - 36px); }
.nb-splitter { background: var(--line); cursor: col-resize; position: relative; }
.nb-splitter:hover { background: var(--sw-blue); }
.nb-splitter::before { content: ''; position: absolute; inset: 0 -4px; cursor: col-resize; }
.nb-pane { display: grid; grid-template-rows: 30px 1fr; min-height: 0; }
.nb-pane-hdr {
  background: var(--chrome-2); border-bottom: 1px solid var(--line);
  display: flex; align-items: center; padding: 0 12px; gap: 10px;
  font-size: 11px; font-weight: 600; color: var(--ink-soft);
  text-transform: uppercase; letter-spacing: 0.5px;
}
.nb-pane-hdr .count { font-weight: 500; color: var(--muted); text-transform: none; letter-spacing: 0; }
.nb-pane-hdr .sp { flex: 1; }
.nb-pane-hdr .ph-btn { padding: 1px 8px; cursor: pointer; border-radius: 3px; font-size: 11px; color: var(--ink-soft); text-transform: none; letter-spacing: 0; font-weight: 500; }
.nb-pane-hdr .ph-btn:hover { background: var(--row-hover); color: var(--ink); }

.tree-scroll { overflow: auto; font-family: var(--mono); font-size: 12px; line-height: 18px; }
.tree { padding: 6px 0 40px 0; }
.row { display: grid; grid-template-columns: auto auto auto auto 1fr auto; align-items: center; column-gap: 4px; padding: 0 12px 0 8px; white-space: nowrap; cursor: pointer; color: var(--ink); min-height: 20px; }
.row:hover { background: var(--row-hover); }
.row.selected { background: var(--row-sel); outline: 1px solid var(--row-sel-b); outline-offset: -1px; }
.row.selected .ip { color: var(--row-sel-b); }
.branch { font-family: var(--mono); color: var(--line); white-space: pre; user-select: none; }
.port-lbl { font-family: var(--mono); color: var(--ink-soft); font-size: 11px; min-width: 130px; text-align: right; padding-right: 4px; }
.port-lbl .lp { color: var(--fiber); font-weight: 600; }
.port-lbl .dash { color: var(--muted); }
.port-lbl .rp { color: var(--accent); font-weight: 600; }
.port-lbl .lspd-sep { color: var(--muted); padding: 0 1px; }
.port-lbl .link-speed { color: var(--muted); font-size: 10px; font-weight: 500; }
.sw-ico { width: 52px; height: 14px; background-repeat: no-repeat; background-position: left center; background-size: 52px 14px; flex-shrink: 0; image-rendering: pixelated; }
.sw-ico.up { background-image: url("assets/icons/tswx.gif"); }
.sw-ico.down { background-image: url("assets/icons/tswund.gif"); filter: grayscale(0.6); }
.sw-ico.warn { background-image: url("assets/icons/tswr.gif"); }
.ip { font-weight: 700; color: var(--ink); font-family: var(--mono); font-size: 12px; min-width: 92px; }
.sysname { color: var(--ink); font-weight: 500; font-family: var(--mono); font-size: 11.5px; min-width: 180px; display: inline-block; padding-left: 10px; }
.descr { color: var(--ink-soft); font-family: var(--mono); font-size: 11px; padding-left: 10px; overflow: hidden; text-overflow: ellipsis; }
.descr .tag { display: inline-block; padding: 0 4px; border-radius: 2px; background: var(--line-soft); color: var(--ink-soft); font-size: 10px; margin-left: 4px; }
.minigraph { width: 150px; height: 14px; position: relative; opacity: .85; flex-shrink: 0; display: flex; align-items: center; gap: 4px; }
.minigraph svg { flex: 1; height: 14px; display: block; }
.minigraph .tick { font-size: 8px; font-family: var(--mono); flex-shrink: 0; min-width: 28px; text-align: right; white-space: nowrap; }
.section-divider { padding: 8px 12px 3px 12px; font: 500 10px var(--sans); text-transform: uppercase; letter-spacing: 0.8px; color: var(--muted); border-top: 1px dashed var(--line); margin-top: 6px; }

/* Detail (right pane) */
.detail-hdr { padding: 14px 18px 10px; border-bottom: 1px solid var(--line); background: linear-gradient(180deg, var(--panel) 0%, var(--chrome-2) 100%); }
.detail-hdr .top-row { display: flex; align-items: center; gap: 12px; margin-bottom: 6px; }
.detail-hdr .big-ico { flex: 0 0 117px; width: 117px; height: 27px; image-rendering: pixelated; background: url("assets/icons/tswx.gif") left center / 117px 27px no-repeat; }
.detail-hdr .big-ico.down { background-image: url("assets/icons/tswund.gif"); filter: grayscale(0.6); }
.detail-hdr .big-ico.warn { background-image: url("assets/icons/tswr.gif"); }
.detail-hdr h1 { font: 600 20px var(--mono); margin: 0; color: var(--ink); letter-spacing: -0.3px; }
.detail-hdr .sub { font: 400 12px var(--mono); color: var(--ink-soft); }
.detail-hdr .badge-row { display: flex; gap: 6px; margin-top: 8px; flex-wrap: wrap; }

.kpi-row { display: grid; grid-template-columns: repeat(5, 1fr); border-bottom: 1px solid var(--line); background: var(--panel); }
.kpi { padding: 10px 14px; border-right: 1px solid var(--line-soft); }
.kpi:last-child { border-right: 0; }
.kpi .lbl { font: 500 9.5px var(--sans); text-transform: uppercase; letter-spacing: 0.8px; color: var(--muted); margin-bottom: 4px; }
.kpi .val { font: 600 15px var(--mono); color: var(--ink); }
.kpi .val.up { color: var(--up); } .kpi .val.down { color: var(--down); }
.kpi .val .unit { font-size: 11px; color: var(--muted); font-weight: 400; margin-left: 2px; }

.tabs { display: flex; border-bottom: 1px solid var(--line); background: var(--chrome-2); padding: 0 10px; }
.tab { padding: 7px 12px; font-size: 11.5px; font-weight: 500; color: var(--ink-soft); border-bottom: 2px solid transparent; cursor: pointer; }
.tab:hover { color: var(--ink); }
.tab.active { color: var(--row-sel-b); border-bottom-color: var(--row-sel-b); font-weight: 600; }
.tab .count { margin-left: 5px; padding: 1px 5px; background: var(--line-soft); color: var(--ink-soft); border-radius: 8px; font-size: 10px; }

.list-scroll { overflow: auto; min-height: 0; }

/* Port block (classic list) */
.port-list { font-family: var(--mono); font-size: 12px; padding: 4px 0 30px; }
.portblock { display: grid; grid-template-columns: 110px 1fr; align-items: start; padding: 3px 14px; border-bottom: 1px solid var(--line-soft); }
.portblock:hover { background: var(--row-hover); }
.pb-left { display: flex; align-items: center; gap: 4px; color: var(--muted); padding-top: 2px; }
.pb-branch { color: var(--line); }
.pb-num { color: var(--ink); font-weight: 700; min-width: 24px; text-align: right; }
.pb-dash { color: var(--muted); }
.pb-ico { width: 14px; height: 14px; flex-shrink: 0; background: url("assets/icons/trj45.gif") center/contain no-repeat; image-rendering: pixelated; }
.pb-ico.down { filter: grayscale(1) brightness(0.7); }
.pb-main { min-width: 0; }
.pb-top { display: flex; align-items: center; gap: 8px; }
.pb-spark { position: relative; flex: 0 0 240px; height: 14px; border-bottom: 1px dotted var(--line); }
.pb-spark svg { width: 100%; height: 14px; display: block; }
.pb-speed { position: absolute; top: -2px; right: 2px; font-size: 9px; font-weight: 600; color: var(--link); font-family: var(--mono); letter-spacing: -0.3px; }
.pb-mid { display: flex; gap: 12px; align-items: baseline; padding: 2px 0 0; }
.pb-if { color: var(--link); font-weight: 600; }
.pb-macs { display: flex; flex-wrap: wrap; gap: 6px; padding: 3px 0 2px; }
.pb-mac-wrap { display: inline-flex; flex-direction: column; align-items: flex-start; }
.pb-mac-row { display: inline-flex; align-items: center; gap: 6px; }
.pb-mac { display: inline-block; background: var(--chrome-2); border: 1px solid var(--line); border-radius: 3px; padding: 1px 6px; font-family: var(--mono); font-size: 10px; color: var(--ink-soft); }
.pb-ip { display: inline-block; color: var(--link); font-size: 9.5px; font-weight: 500; font-family: var(--mono); }
.pb-vendor { display: inline-block; color: var(--muted); font-size: 9px; margin-left: 2px; font-style: italic; }
.mac-time { display: block; color: var(--muted); font-size: 8.5px; margin-top: 1px; padding-left: 2px; }
.pb-lldp { display: flex; align-items: center; gap: 5px; padding: 2px 0 1px; font-size: 10px; }
.pb-lldp-ico { color: var(--link); font-size: 11px; }
.pb-lldp-name { font-weight: 600; color: var(--ink); }
.pb-lldp-ip { color: var(--muted); font-family: var(--mono); font-size: 9.5px; }
.pb-lldp-port { background: var(--chrome-2); border: 1px solid var(--line); border-radius: 3px; padding: 0 4px; font-family: var(--mono); font-size: 9px; color: var(--ink-soft); }
.portblock:hover .pb-if { text-decoration: underline; }
.pb-vlan { color: var(--link); }
.pb-alias { color: var(--ink-soft); font-size: 11px; margin-left: auto; }
.pb-alias.uplink { color: var(--poe); font-weight: 600; }
.macline { display: flex; gap: 10px; align-items: center; color: var(--ink-soft); font-size: 11.5px; padding: 1px 0; }
.macbr { color: var(--line); }
.macico { width: 10px; height: 10px; border-radius: 50%; background: var(--down); flex-shrink: 0; }
.macico.up { background: var(--up); }
.mactime { color: var(--muted); min-width: 80px; }
.macaddr { color: var(--ink); font-weight: 600; letter-spacing: 0.3px; }
.macip { color: var(--ink); min-width: 110px; }
.macvendor { color: var(--muted); font-size: 10.5px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* ── Port Controls (filtreleme & pagination) ── */
.port-controls {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-bottom: 1px solid var(--line);
}

.port-search {
  flex: 1;
  padding: 6px 10px;
  border: 1px solid var(--line);
  border-radius: 4px;
  font-family: var(--mono);
  font-size: 12px;
  background: var(--bg);
  color: var(--ink);
  outline: none;
}

.port-search:focus {
  border-color: var(--up);
  box-shadow: 0 0 0 2px var(--up-soft);
}

.port-filters {
  display: flex;
  gap: 4px;
}

.port-filter-btn {
  padding: 5px 12px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: var(--panel);
  color: var(--ink-soft);
  font-size: 11px;
  font-family: var(--mono);
  cursor: pointer;
  transition: all 0.15s;
  white-space: nowrap;
}

.port-filter-btn:hover {
  background: var(--chrome-2);
  color: var(--ink);
}

.port-filter-btn.active {
  background: var(--up);
  color: #fff;
  border-color: var(--up);
}

/* ── Port Pagination ── */
.port-pagination {
  display: flex;
  justify-content: center;
  gap: 4px;
  padding: 14px 14px 8px;
}

.port-page-btn {
  padding: 4px 12px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: var(--panel);
  color: var(--ink-soft);
  font-size: 11px;
  font-family: var(--mono);
  cursor: pointer;
  transition: all 0.15s;
}

.port-page-btn:hover {
  background: var(--chrome-2);
  color: var(--ink);
}

.port-page-btn.active {
  background: var(--up);
  color: #fff;
  border-color: var(--up);
}

/* Topology tree view */
.topo-tree-card { padding: 0; overflow: auto; height: calc(100vh - 36px - 22px - 88px); }
.topo-tree-hdr {
  display: flex; align-items: center; gap: 0; padding: 5px 12px;
  border-bottom: 2px solid var(--line); background: var(--chrome-2);
  font-size: 10px; font-weight: 700; color: var(--muted); text-transform: uppercase;
  letter-spacing: 0.5px; position: sticky; top: 0; z-index: 1; user-select: none;
}
.tth-conn { width: 220px; min-width: 220px; }
.tth-ip   { width: 105px; min-width: 105px; }
.tth-info { flex: 1; }
.topo-tr {
  display: flex; align-items: center; gap: 0; padding: 2px 12px;
  border-bottom: 1px solid var(--line-soft); cursor: pointer;
  transition: background 0.08s;
}
.topo-tr:hover { background: var(--row-hover); }
.topo-tr.ttr-dn { opacity: 0.55; }
.topo-tr.ttr-wn .ttr-ip { color: var(--warn); }
.ttr-branch { font-family: var(--mono); color: var(--line); white-space: pre; user-select: none; font-size: 12.5px; line-height: 20px; }
.ttr-port { font-family: var(--mono); font-size: 11px; min-width: 130px; display: inline-flex; align-items: center; gap: 0; }
.ttr-pp   { color: var(--accent); font-weight: 700; min-width: 18px; text-align: right; }
.ttr-dash { color: var(--muted); }
.ttr-cp   { color: var(--fiber); font-weight: 700; min-width: 18px; }
.ttr-sep  { color: var(--muted); padding: 0 1px; }
.ttr-spd  { color: var(--muted); font-size: 10px; font-weight: 500; }
.ttr-line { color: var(--muted); margin-right: 4px; }
.ttr-ip   { font-weight: 700; color: var(--ink); font-family: var(--mono); font-size: 12px; min-width: 105px; }
.ttr-info { display: flex; align-items: baseline; gap: 4px; flex: 1; min-width: 0; overflow: hidden; padding-left: 6px; }
.ttr-name { color: var(--ink); font-weight: 500; font-family: var(--mono); font-size: 11.5px; white-space: nowrap; }
.ttr-descr { color: var(--muted); font-size: 11px; font-family: var(--mono); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; flex: 1; }
.ttr-vlan { font-family: var(--mono); font-size: 10px; font-weight: 600; color: var(--link); background: rgba(51,84,230,0.09); padding: 1px 5px; border-radius: 3px; white-space: nowrap; flex-shrink: 0; margin-left: 4px; }

/* Ping monitor */
.ping-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 10px; }
.ping-card { background: var(--panel); border: 1px solid var(--line); border-radius: 6px; padding: 10px 12px; }
.ping-card .ph { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 6px; }
.ping-card .host { font: 600 12px var(--mono); color: var(--ink); }
.ping-card .rtt { font: 600 14px var(--mono); color: var(--up); }
.ping-card .rtt.down { color: var(--down); }
.ping-spark { height: 40px; position: relative; }
.ping-spark svg { width: 100%; height: 100%; display: block; }
.ping-card .meta { display: flex; gap: 10px; font-size: 10.5px; color: var(--muted); margin-top: 6px; font-family: var(--mono); }

/* Wizard */
.wizard-steps { display: flex; gap: 0; margin-bottom: 18px; }
.wizard-steps .step { flex: 1; padding: 10px 14px; border-bottom: 3px solid var(--line); color: var(--muted); font-weight: 500; }
.wizard-steps .step.active { color: var(--row-sel-b); border-bottom-color: var(--row-sel-b); }
.wizard-steps .step.done { color: var(--up); border-bottom-color: var(--up); }
.wizard-steps .step .n { display: inline-grid; place-items: center; width: 22px; height: 22px; border-radius: 50%; background: var(--line); color: var(--ink); font-size: 11px; margin-right: 8px; }
.wizard-steps .step.active .n { background: var(--row-sel-b); color: #fff; }
.wizard-steps .step.done .n { background: var(--up); color: #fff; }

/* Alert list */
.alert-row { display: grid; grid-template-columns: 80px 1fr 200px 100px; gap: 10px; padding: 8px 14px; border-bottom: 1px solid var(--line-soft); font-family: var(--mono); font-size: 12px; align-items: center; }
.alert-row:hover { background: var(--row-hover); }
.alert-row .sev { text-align: center; }

/* Log viewer */
.log-viewer { background: #0a0a0a; color: #cbd1db; font-family: var(--mono); font-size: 12px; padding: 10px; border-radius: 6px; overflow: auto; height: calc(100vh - 36px - 22px - 120px); }
.log-viewer .lg-time { color: #6e7787; }
.log-viewer .lg-lvl-info { color: #5ac7e8; }
.log-viewer .lg-lvl-warn { color: #ffb545; }
.log-viewer .lg-lvl-err { color: #ff5a4a; }
.log-viewer .lg-lvl-ok { color: #39e66a; }

/* ── GEAR MENU ────────────────────────────────────────── */
.gear-btn { cursor: pointer; color: var(--muted); font-size: 12px; user-select: none; padding: 0 2px; border-radius: 3px; transition: background .1s, color .1s; }
.gear-btn:hover { background: var(--line-soft); color: var(--ink); }

.gear-menu { position: fixed; z-index: 9999; background: var(--panel); border: 1px solid var(--line); border-radius: 6px; box-shadow: 0 4px 16px rgba(0,0,0,.12); padding: 4px 0; min-width: 140px; font-size: 12px; font-family: var(--sans); }
.gm-item { padding: 7px 14px; cursor: pointer; color: var(--ink); white-space: nowrap; }
.gm-item:hover { background: var(--chrome-2); }
.gm-item.danger { color: var(--down); }
.gm-sep { height: 1px; background: var(--line); margin: 4px 0; }

/* ── PING MODAL ───────────────────────────────────────── */
.ping-modal { position: fixed; inset: 0; z-index: 9998; display: flex; align-items: center; justify-content: center; background: rgba(0,0,0,.3); }
.pm-box { background: var(--panel); border: 1px solid var(--line); border-radius: 8px; padding: 20px 24px; min-width: 260px; box-shadow: 0 8px 32px rgba(0,0,0,.18); }
.pm-title { font-weight: 700; font-size: 13px; margin-bottom: 14px; font-family: var(--mono); }
.pm-body { margin-bottom: 16px; line-height: 1.6; }