:root {
  --bg: #eef1f5; --panel: #fff; --border: #dde2ea; --text: #1e2733; --muted: #6b7686; --head: #f6f8fb;
  --nav: #1b2533; --nav2: #243245; --nav-text: #c9d3df; --accent: #1d4ed8; --accent-2: #2563eb;
  --up: #16a34a; --up-bg: #dcfce7; --down: #dc2626; --down-bg: #fee2e2; --warn: #d97706; --warn-bg: #fef3c7;
  --off: #64748b; --off-bg: #e2e8f0; --in: #16a34a; --out: #2563eb; --radius: 6px;
  --shadow: 0 1px 2px rgba(16,24,40,.06);
  --mono: ui-monospace, "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}
:root[data-theme="dark"] {
  --bg: #0f1620; --panel: #17212e; --border: #263446; --text: #dbe3ec; --muted: #8a99ab; --head: #1c2838;
  --nav: #0b1119; --nav2: #141e2b; --up-bg: #12351f; --down-bg: #3d1717; --warn-bg: #3b2a0c; --off-bg: #243040;
  --shadow: none;
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--text);
  font: 13px/1.45 -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif; }
a { color: var(--accent-2); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3 { margin: 0; font-weight: 600; }
h1 { font-size: 20px; } h2 { font-size: 15px; } h3 { font-size: 13px; }
.boot { padding: 40px; color: var(--muted); }
.muted { color: var(--muted); } .mono { font-family: var(--mono); font-size: 12px; }
[hidden] { display: none !important; }
.right { text-align: right; } .nowrap { white-space: nowrap; } .hidden { display: none !important; }
.grow { flex: 1; } .row { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
.stack { display: flex; flex-direction: column; gap: 14px; }

/* ---------- navbar ---------- */
.nav { background: var(--nav); color: var(--nav-text); display: flex; align-items: center; height: 46px;
  padding: 0 14px; gap: 4px; position: sticky; top: 0; z-index: 20; box-shadow: 0 1px 0 rgba(0,0,0,.25); }
.brand { color: #fff; font-weight: 700; font-size: 16px; margin-right: 18px; display: flex; gap: 8px; align-items: center; }
.brand img { width: 22px; height: 22px; }
.nav a.item { color: var(--nav-text); padding: 0 12px; height: 46px; display: flex; align-items: center; gap: 6px;
  border-bottom: 2px solid transparent; }
.nav a.item:hover { background: var(--nav2); text-decoration: none; color: #fff; }
.nav a.item.active { color: #fff; border-bottom-color: #3b82f6; background: var(--nav2); }
.nav .spacer { flex: 1; }
.nav .search { background: var(--nav2); border: 1px solid #334155; color: #fff; border-radius: 4px; padding: 5px 10px; width: 220px; }
.nav .search::placeholder { color: #7d8ba0; }
.nav .user { display: flex; align-items: center; gap: 8px; padding: 0 8px; }
.nav .live-dot { width: 8px; height: 8px; border-radius: 50%; background: #64748b; display: inline-block; }
.nav .live-dot.on { background: #22c55e; box-shadow: 0 0 0 3px rgba(34,197,94,.25); }
.icon-btn { background: transparent; border: 0; color: var(--nav-text); cursor: pointer; padding: 6px 8px; border-radius: 4px; font-size: 14px; }
.icon-btn:hover { background: var(--nav2); color: #fff; }

main { padding: 16px 18px 40px; max-width: 1600px; margin: 0 auto; }
.page-head { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; flex-wrap: wrap; }
.crumbs { color: var(--muted); font-size: 12px; margin-bottom: 4px; }

/* ---------- panels ---------- */
.panel { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); }
.panel > .ph { padding: 9px 12px; border-bottom: 1px solid var(--border); display: flex; align-items: center; gap: 10px; background: var(--head);
  border-radius: var(--radius) var(--radius) 0 0; }
.panel > .ph h2 { font-size: 13px; text-transform: uppercase; letter-spacing: .03em; color: var(--muted); }
.panel > .pb { padding: 12px; }
.grid { display: grid; gap: 14px; }
.g4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.g3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.g2 { grid-template-columns: 2fr 1fr; }
.g11 { grid-template-columns: 1fr 1fr; }
@media (max-width: 1100px) { .g4 { grid-template-columns: repeat(2, 1fr); } .g2, .g3, .g11 { grid-template-columns: 1fr; } }

.tile { padding: 14px 16px; display: flex; flex-direction: column; gap: 4px; }
.tile .label { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .04em; }
.tile .value { font-size: 26px; font-weight: 600; font-variant-numeric: tabular-nums; }
.tile .sub { font-size: 12px; color: var(--muted); }
.tile .sub b.up { color: var(--up); } .tile .sub b.down { color: var(--down); }

/* ---------- tables ---------- */
table.t { width: 100%; border-collapse: collapse; font-variant-numeric: tabular-nums; }
table.t th { text-align: left; font-weight: 600; color: var(--muted); font-size: 11.5px; text-transform: uppercase; letter-spacing: .03em;
  padding: 7px 10px; border-bottom: 1px solid var(--border); background: var(--head); white-space: nowrap; }
table.t td { padding: 6px 10px; border-bottom: 1px solid var(--border); vertical-align: middle; }
table.t tr:last-child td { border-bottom: 0; }
table.t tbody tr:hover td { background: rgba(59,130,246,.06); }
table.t tr.clickable { cursor: pointer; }
table.t th.sortable { cursor: pointer; user-select: none; }
table.t th.sortable:hover { color: var(--text); }
table.t tr.sel td { background: rgba(59,130,246,.12); }
table.t td.num, table.t th.num { text-align: right; }
.table-wrap { overflow-x: auto; }
.empty { padding: 30px; text-align: center; color: var(--muted); }

/* ---------- badges ---------- */
.badge { display: inline-flex; align-items: center; gap: 5px; padding: 1px 8px; border-radius: 10px; font-size: 11.5px; font-weight: 600; white-space: nowrap; }
.badge.up { background: var(--up-bg); color: var(--up); }
.badge.down { background: var(--down-bg); color: var(--down); }
.badge.warn { background: var(--warn-bg); color: var(--warn); }
.badge.off, .badge.unknown, .badge.disabled { background: var(--off-bg); color: var(--off); }
.dot { width: 9px; height: 9px; border-radius: 50%; display: inline-block; flex: none; }
.dot.up { background: var(--up); } .dot.down { background: var(--down); } .dot.warn { background: var(--warn); }
.dot.off, .dot.unknown, .dot.disabled { background: #94a3b8; }
.vendor { display: inline-block; white-space: nowrap; font-size: 11px; font-weight: 700; padding: 1px 7px; border-radius: 3px; color: #fff; letter-spacing: .02em; }
.vendor.snr { background: #e11d48; } .vendor.cisco { background: #0891b2; } .vendor.fortinet { background: #dc2626; }
.vendor.qtech { background: #7c3aed; } .vendor.eltex { background: #2563eb; } .vendor.bdcom { background: #ea580c; } .vendor.dlink { background: #0f766e; } .vendor.generic, .vendor.auto { background: #64748b; }
.tag { display: inline-block; background: var(--off-bg); color: var(--muted); border-radius: 3px; padding: 0 6px; font-size: 11px; }

/* ---------- traffic bars ---------- */
.rate { display: flex; flex-direction: column; gap: 2px; min-width: 120px; }
.rate .v { font-family: var(--mono); font-size: 12px; white-space: nowrap; }
.rate .v.in { color: var(--in); } .rate .v.out { color: var(--out); }
.bar { height: 4px; background: var(--off-bg); border-radius: 2px; overflow: hidden; }
.bar i { display: block; height: 100%; width: 0; transition: width .6s ease; }
.bar.in i { background: var(--in); } .bar.out i { background: var(--out); }
.bar.hot i { background: var(--down); }
.spark { width: 120px; height: 28px; display: block; }
.util { font-family: var(--mono); font-size: 12px; }
.flash { animation: flash 1s ease; }
@keyframes flash { from { background: rgba(250,204,21,.35); } to { background: transparent; } }

/* ---------- buttons & forms ---------- */
.btn { display: inline-flex; align-items: center; gap: 6px; padding: 6px 12px; border-radius: 5px; border: 1px solid var(--border);
  background: var(--panel); color: var(--text); cursor: pointer; font: inherit; font-weight: 500; white-space: nowrap; }
.btn:hover { border-color: #9aa8bb; text-decoration: none; }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.primary:hover { background: var(--accent-2); }
.btn.danger { color: var(--down); }
.btn.danger.solid { background: var(--down); color: #fff; border-color: var(--down); }
.btn.sm { padding: 3px 8px; font-size: 12px; }
.btn:disabled { opacity: .55; cursor: default; }
.btn-group { display: inline-flex; }
.btn-group .btn { border-radius: 0; margin-left: -1px; }
.btn-group .btn:first-child { border-radius: 5px 0 0 5px; margin-left: 0; }
.btn-group .btn:last-child { border-radius: 0 5px 5px 0; }
.btn-group .btn.active { background: var(--accent); color: #fff; border-color: var(--accent); z-index: 1; }
label.f { display: flex; flex-direction: column; gap: 4px; font-size: 12px; color: var(--muted); font-weight: 600; }
input[type=text], input[type=password], input[type=number], input[type=search], select, textarea {
  font: inherit; color: var(--text); background: var(--panel); border: 1px solid var(--border); border-radius: 5px; padding: 7px 9px; width: 100%; }
input:focus, select:focus, textarea:focus { outline: 2px solid rgba(37,99,235,.35); border-color: var(--accent-2); }
textarea { min-height: 70px; resize: vertical; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.form-grid .full { grid-column: 1 / -1; }
.check { display: flex; gap: 8px; align-items: center; font-size: 13px; color: var(--text); font-weight: 400; }
.hint { font-size: 12px; color: var(--muted); font-weight: 400; }
.err { color: var(--down); font-size: 12.5px; min-height: 18px; }
.ok { color: var(--up); }
fieldset { border: 1px solid var(--border); border-radius: var(--radius); padding: 10px 12px 12px; margin: 0; }
legend { padding: 0 6px; font-weight: 600; color: var(--muted); font-size: 12px; }

/* ---------- tabs ---------- */
.tabs { display: flex; gap: 2px; border-bottom: 1px solid var(--border); margin-bottom: 14px; }
.tabs a { padding: 8px 14px; color: var(--muted); border-bottom: 2px solid transparent; margin-bottom: -1px; font-weight: 500; }
.tabs a:hover { color: var(--text); text-decoration: none; }
.tabs a.active { color: var(--accent-2); border-bottom-color: var(--accent-2); }

/* ---------- device header ---------- */
.dev-head { display: grid; grid-template-columns: auto 1fr auto; gap: 16px; align-items: center; padding: 14px 16px; }
.dev-head .status-big { width: 12px; align-self: stretch; border-radius: 3px; }
.dev-head .status-big.up { background: var(--up); } .dev-head .status-big.down { background: var(--down); }
.dev-head .status-big.unknown, .dev-head .status-big.disabled { background: #94a3b8; }
.dev-head h1 { display: flex; align-items: center; gap: 10px; }
.kv { display: grid; grid-template-columns: 140px 1fr; gap: 4px 12px; }
.kv dt { color: var(--muted); } .kv dd { margin: 0; word-break: break-word; }
.meters { display: flex; gap: 18px; }
.meter { min-width: 110px; }
.meter .label { font-size: 11px; color: var(--muted); text-transform: uppercase; }
.meter .value { font-size: 18px; font-weight: 600; font-variant-numeric: tabular-nums; }
.meter .bar { height: 5px; margin-top: 3px; }
.meter .bar i { background: var(--accent-2); }

/* ---------- charts ---------- */
.chart-box { position: relative; height: 260px; }
.chart-box canvas { width: 100%; height: 100%; display: block; }
.chart-tip { position: absolute; pointer-events: none; background: rgba(15,23,42,.92); color: #fff; font-size: 12px; padding: 6px 9px;
  border-radius: 4px; white-space: nowrap; transform: translate(-50%, -110%); z-index: 3; }
.chart-tip .in { color: #4ade80; } .chart-tip .out { color: #93c5fd; }
.legend { display: flex; gap: 16px; font-size: 12px; color: var(--muted); }
.legend span::before { content: ""; display: inline-block; width: 10px; height: 10px; border-radius: 2px; margin-right: 5px; vertical-align: -1px; }
.legend .in::before { background: var(--in); } .legend .out::before { background: var(--out); }
.stats { display: grid; grid-template-columns: repeat(3, auto); gap: 4px 18px; font-size: 12px; }
.stats b { font-family: var(--mono); font-weight: 500; }

/* ---------- side drawer (port details) ---------- */
.drawer-bg { position: fixed; inset: 0; background: rgba(15,23,42,.35); z-index: 40; }
.drawer { position: fixed; top: 0; right: 0; bottom: 0; width: min(860px, 96vw); background: var(--bg); z-index: 41; overflow-y: auto;
  box-shadow: -8px 0 30px rgba(0,0,0,.2); animation: slide .18s ease; }
.drawer .dh { position: sticky; top: 0; background: var(--panel); border-bottom: 1px solid var(--border); padding: 12px 16px; display: flex; gap: 10px; align-items: center; z-index: 2; }
.drawer .db { padding: 14px 16px; display: flex; flex-direction: column; gap: 14px; }
@keyframes slide { from { transform: translateX(40px); opacity: 0; } to { transform: none; opacity: 1; } }

/* ---------- modal ---------- */
.modal-bg { position: fixed; inset: 0; background: rgba(15,23,42,.45); z-index: 50; display: flex; align-items: flex-start; justify-content: center; padding: 6vh 16px; overflow-y: auto; }
.modal { background: var(--panel); border-radius: 8px; width: min(720px, 100%); box-shadow: 0 20px 50px rgba(0,0,0,.3); }
.modal .mh { padding: 14px 18px; border-bottom: 1px solid var(--border); display: flex; align-items: center; }
.modal .mb { padding: 16px 18px; }
.modal .mf { padding: 12px 18px; border-top: 1px solid var(--border); display: flex; gap: 8px; justify-content: flex-end; align-items: center; }

/* ---------- toasts ---------- */
#toasts { position: fixed; right: 16px; bottom: 16px; display: flex; flex-direction: column; gap: 8px; z-index: 60; max-width: 420px; }
.toast { background: var(--nav); color: #fff; padding: 10px 14px; border-radius: 6px; box-shadow: 0 6px 20px rgba(0,0,0,.25);
  border-left: 4px solid #3b82f6; font-size: 13px; animation: slide .2s ease; }
.toast.error { border-left-color: var(--down); } .toast.warning { border-left-color: var(--warn); } .toast.info.ok { border-left-color: var(--up); }

/* ---------- auth ---------- */
.auth-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 20px;
  background: radial-gradient(1200px 600px at 20% -10%, #1e3a8a 0%, transparent 60%), linear-gradient(160deg, #0f172a, #111827 60%, #0b1220); }
.auth-card { background: var(--panel); width: 400px; max-width: 100%; border-radius: 10px; box-shadow: 0 24px 60px rgba(0,0,0,.45); overflow: hidden; }
.auth-card .ah { padding: 22px 26px 6px; display: flex; gap: 10px; align-items: center; }
.auth-card .ah img { width: 32px; height: 32px; }
.auth-card .ab { padding: 14px 26px 24px; display: flex; flex-direction: column; gap: 12px; }
.auth-card .tabs { margin: 0 26px; }
.auth-card .btn { justify-content: center; padding: 9px 12px; }
.auth-foot { padding: 12px 26px; background: var(--head); border-top: 1px solid var(--border); font-size: 12px; color: var(--muted); }
.otp-input { font-family: var(--mono); font-size: 22px !important; letter-spacing: .4em; text-align: center; }
.qr { display: flex; gap: 14px; align-items: center; }
.qr img { width: 168px; height: 168px; border: 1px solid var(--border); border-radius: 6px; background: #fff; }
.key-ill { display: flex; justify-content: center; padding: 6px 0; color: var(--muted); }
.secret { font-family: var(--mono); background: var(--head); padding: 4px 8px; border-radius: 4px; word-break: break-all; font-size: 12px; }

.events .ev { display: grid; grid-template-columns: 120px 18px 1fr; gap: 8px; padding: 6px 12px; border-bottom: 1px solid var(--border); align-items: baseline; }
.events .ev:last-child { border-bottom: 0; }
.events .ev .ts { color: var(--muted); font-size: 12px; font-family: var(--mono); }
.sev { width: 9px; height: 9px; border-radius: 50%; display: inline-block; }
.sev.info { background: #3b82f6; } .sev.warning { background: var(--warn); } .sev.error { background: var(--down); }
.vendor-list { display: flex; flex-direction: column; gap: 8px; }
.vendor-list .vr { display: grid; grid-template-columns: 1fr 40px; gap: 8px; align-items: center; }
.alert { padding: 10px 12px; border-radius: 6px; background: var(--down-bg); color: var(--down); border: 1px solid rgba(220,38,38,.25); }
.alert.info { background: rgba(59,130,246,.1); color: var(--accent-2); border-color: rgba(59,130,246,.25); }
.filters { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.filters input[type=search] { width: 240px; }
.filters select { width: auto; }
.stack.tight { gap: 6px; }

/* ---------- сетевые функции ---------- */
.search-big { flex: 1; min-width: 280px; font-size: 15px !important; padding: 10px 12px !important; }
.map-wrap { position: relative; padding: 0; overflow: hidden; }
.netmap { width: 100%; height: 640px; display: block; touch-action: none; user-select: none; }
.netmap .eline { stroke: var(--up); } .netmap .eline.warn { stroke: var(--warn); } .netmap .eline.bad { stroke: var(--down); }
.netmap .elabel { font-size: 11px; fill: var(--muted); text-anchor: middle; paint-order: stroke; stroke: var(--panel); stroke-width: 3px; }
.netmap .node { cursor: pointer; }
.netmap .nbox { fill: var(--panel); stroke: var(--border); stroke-width: 1.25; }
.netmap .node:hover .nbox { stroke: var(--accent-2); }
.netmap .nbox.st-down { stroke: var(--down); stroke-width: 2; }
.netmap .node.ext .nbox { stroke-dasharray: 4 3; fill: var(--head); }
.netmap .ndot { fill: #94a3b8; } .netmap .ndot.st-up { fill: var(--up); } .netmap .ndot.st-down { fill: var(--down); }
.netmap .nlabel { font-size: 13px; font-weight: 600; fill: var(--text); }
.netmap .nsub { font-size: 10.5px; fill: var(--muted); }
.nb-badge { display: inline-block; font-size: 11px; color: var(--accent-2); margin-left: 4px; }
.bell { cursor: pointer; border: 0; background: none; font-size: 14px; color: var(--muted); padding: 0 4px; }
.bell.on { color: var(--warn); }
.kv.compact { grid-template-columns: 120px 1fr; }
.value-md { font-size: 17px; font-weight: 600; font-variant-numeric: tabular-nums; }