:root {
  --bg: #0d1117; --panel: #151b23; --panel-2: #1b222c; --line: #26303c;
  --text: #e3e8ee; --muted: #8b96a3; --faint: #5d6874;
  --accent: #4ea1ff; --accent-ink: #06121f;
  --ok: #0ca30c; --warn: #fab219; --crit: #d03b3b; --na: #5d6874;
  --data: #7c8a9c; --data-track: #26303c; --warn-ink: #fab219;
  --ok-bg: rgba(12,163,12,.14); --warn-bg: rgba(250,178,25,.14); --crit-bg: rgba(208,59,59,.16);
  --mono: ui-monospace, "JetBrains Mono", "SF Mono", Menlo, Consolas, monospace;
  --sans: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --radius: 8px;
}
@media (prefers-color-scheme: light) {
  :root {
    --bg: #f4f6f8; --panel: #ffffff; --panel-2: #f7f9fb; --line: #dde3ea;
    --text: #18202a; --muted: #5d6b7a; --faint: #8a97a5;
    --accent: #0b6bd3; --accent-ink: #fff;
    --ok-bg: rgba(12,163,12,.10); --warn-bg: rgba(250,178,25,.18); --crit-bg: rgba(208,59,59,.10);
    --na: #aab4bf; --data: #6b7a8c; --data-track: #e6ebf0; --warn-ink: #8a5a00;
  }
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--text); font: 14px/1.45 var(--sans); }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
code, .mono { font-family: var(--mono); font-size: 12.5px; }
.muted { color: var(--muted); } .faint { color: var(--faint); } .small { font-size: 12px; }
h1 { font-size: 20px; margin: 0; font-weight: 650; letter-spacing: -.01em; }
h2 { font-size: 15px; margin: 0 0 12px; font-weight: 620; }
h3 { font-size: 13px; margin: 0 0 8px; font-weight: 620; color: var(--muted); text-transform: uppercase; letter-spacing: .05em; }

/* layout */
.shell { display: grid; grid-template-columns: 216px 1fr; min-height: 100vh; }
.side { background: var(--panel); border-right: 1px solid var(--line); padding: 18px 12px; position: sticky; top: 0; height: 100vh; display: flex; flex-direction: column; gap: 4px; }
.brand { display: flex; align-items: center; gap: 9px; font-weight: 700; font-size: 15px; padding: 2px 8px 16px; }
.brand-mark { width: 26px; height: 26px; border-radius: 7px; background: linear-gradient(135deg, var(--accent), #7c5cff); display: grid; place-items: center; color: #fff; font-size: 13px; }
.nav a { display: flex; align-items: center; justify-content: space-between; color: var(--muted); padding: 7px 10px; border-radius: 6px; font-weight: 520; }
.nav a:hover { background: var(--panel-2); color: var(--text); text-decoration: none; }
.nav a.on { background: var(--panel-2); color: var(--text); box-shadow: inset 2px 0 0 var(--accent); }
.nav .sep { height: 1px; background: var(--line); margin: 10px 4px; }
.side-foot { margin-top: auto; padding: 10px 8px 0; border-top: 1px solid var(--line); font-size: 12px; color: var(--muted); }
.side-foot form { display: inline; }
.main { padding: 22px 28px 60px; min-width: 0; }
.head { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 18px; flex-wrap: wrap; }
.head .sub { color: var(--muted); font-size: 13px; margin-top: 3px; }
.row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.grid2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(340px, 1fr)); gap: 16px; }
.panel { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; }
.panel + .panel, .section { margin-top: 16px; }
.grid2 > .panel { margin-top: 0; }
.panel.flush { padding: 0; overflow: hidden; }
.panel.flush > h2 { padding: 14px 16px 0; }

/* buttons & forms */
.btn { display: inline-flex; align-items: center; gap: 6px; background: var(--panel-2); color: var(--text); border: 1px solid var(--line); border-radius: 6px; padding: 6px 12px; font: 500 13px var(--sans); cursor: pointer; white-space: nowrap; }
.btn:hover { border-color: var(--faint); text-decoration: none; }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.btn.danger { color: var(--crit); border-color: color-mix(in srgb, var(--crit) 40%, var(--line)); }
.btn.sm { padding: 3px 9px; font-size: 12px; }
.btn[disabled] { opacity: .5; cursor: not-allowed; }
input[type=text], input[type=password], input[type=url], input[type=search], select, textarea {
  width: 100%; background: var(--bg); color: var(--text); border: 1px solid var(--line); border-radius: 6px; padding: 7px 10px; font: 14px var(--sans); }
textarea { min-height: 70px; resize: vertical; }
input:focus, select:focus, textarea:focus { outline: 2px solid color-mix(in srgb, var(--accent) 50%, transparent); border-color: var(--accent); }
label.f { display: block; margin-bottom: 14px; }
label.f > span { display: block; font-size: 12px; font-weight: 600; color: var(--muted); margin-bottom: 5px; }
label.f small { display: block; color: var(--faint); margin-top: 4px; font-size: 12px; }
label.chk { display: flex; gap: 8px; align-items: flex-start; margin-bottom: 10px; cursor: pointer; }
label.chk small { display: block; color: var(--faint); font-size: 12px; }
.form-narrow { max-width: 640px; }
.filters { display: flex; gap: 8px; margin-bottom: 14px; flex-wrap: wrap; }
.filters input, .filters select { width: auto; min-width: 160px; }

/* flash */
.flash { padding: 9px 14px; border-radius: 6px; margin-bottom: 14px; border: 1px solid; }
.flash.ok { background: var(--ok-bg); border-color: color-mix(in srgb, var(--ok) 35%, transparent); }
.flash.err { background: var(--crit-bg); border-color: color-mix(in srgb, var(--crit) 35%, transparent); }

/* stat tiles */
.tiles { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; margin-bottom: 18px; }
.tile { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 12px 14px; display: block; color: inherit; }
.tile:hover { text-decoration: none; border-color: var(--faint); }
.tile .k { font-size: 12px; color: var(--muted); font-weight: 560; }
.tile .v { font: 650 26px/1.2 var(--sans); margin-top: 3px; font-variant-numeric: tabular-nums; }
.tile.ok .v { color: var(--ok); } .tile.crit .v { color: var(--crit); } .tile.warn .v { color: var(--warn); }

/* tables */
table { width: 100%; border-collapse: collapse; }
th { text-align: left; font-size: 11.5px; font-weight: 620; color: var(--muted); text-transform: uppercase; letter-spacing: .04em; padding: 9px 12px; border-bottom: 1px solid var(--line); background: var(--panel-2); white-space: nowrap; }
td { padding: 9px 12px; border-bottom: 1px solid var(--line); vertical-align: middle; }
tr:last-child td { border-bottom: 0; }
tbody tr:hover td { background: color-mix(in srgb, var(--panel-2) 70%, transparent); }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }
.group-row td { background: var(--panel-2); font-weight: 650; font-size: 12.5px; color: var(--muted); padding: 7px 12px; }
.fw-name { font-weight: 600; color: var(--text); }
.nowrap { white-space: nowrap; }
.tbl-wrap { overflow-x: auto; }

/* status */
.dot { display: inline-block; width: 9px; height: 9px; border-radius: 50%; background: var(--na); flex: none; }
.dot.online { background: var(--ok); box-shadow: 0 0 0 3px var(--ok-bg); }
.dot.offline, .dot.error { background: var(--crit); box-shadow: 0 0 0 3px var(--crit-bg); }
.dot.unknown { background: var(--na); }
.st { display: inline-flex; align-items: center; gap: 8px; }
.pill { display: inline-block; padding: 1px 8px; border-radius: 99px; font-size: 11.5px; font-weight: 600; border: 1px solid var(--line); color: var(--muted); white-space: nowrap; }
.pill.ok { color: var(--ok); background: var(--ok-bg); border-color: transparent; }
.pill.warn, .pill.warning { color: var(--warn); background: var(--warn-bg); border-color: transparent; }
.pill.crit, .pill.critical { color: var(--crit); background: var(--crit-bg); border-color: transparent; }

/* meters */
.meter { display: flex; align-items: center; gap: 8px; min-width: 104px; }
.meter .bar { flex: 1; height: 6px; background: var(--data-track); border-radius: 3px; overflow: hidden; min-width: 50px; }
.meter .bar i { display: block; height: 100%; background: var(--data); border-radius: 3px; }
.meter.warn .bar i { background: var(--warn); } .meter.crit .bar i { background: var(--crit); }
.meter .n { font: 12px var(--mono); width: 34px; text-align: right; color: var(--muted); }
.meter.na .n { color: var(--faint); }

/* key-value */
.kv { display: grid; grid-template-columns: 140px 1fr; gap: 7px 12px; font-size: 13px; }
.kv dt { color: var(--muted); } .kv dd { margin: 0; overflow-wrap: anywhere; }

/* alerts list */
.alert-item { display: flex; gap: 10px; align-items: flex-start; padding: 9px 0; border-bottom: 1px solid var(--line); }
.alert-item:last-child { border-bottom: 0; }

/* charts */
.chart-box { position: relative; height: 230px; }
.chart-box svg { width: 100%; height: 100%; display: block; }
.chart-legend { display: flex; gap: 14px; font-size: 12px; color: var(--muted); margin-bottom: 6px; }
.chart-legend i { display: inline-block; width: 10px; height: 3px; border-radius: 2px; margin-right: 5px; vertical-align: middle; }
.chart-tip { position: absolute; pointer-events: none; background: var(--panel-2); border: 1px solid var(--line); border-radius: 6px; padding: 5px 8px; font-size: 12px; white-space: nowrap; display: none; }

/* diff */
.diff { font: 12.5px/1.5 var(--mono); overflow-x: auto; }
.diff div { padding: 0 12px; white-space: pre; }
.diff .add { background: var(--ok-bg); color: var(--ok); }
.diff .del { background: var(--crit-bg); color: var(--crit); }
.diff .hunk { color: var(--accent); background: var(--panel-2); margin-top: 6px; }
.diff .file { color: var(--muted); font-weight: 600; }

/* login */
.login-wrap { min-height: 100vh; display: grid; place-items: center; padding: 20px; }
.login { width: 100%; max-width: 360px; }
.login .brand { justify-content: center; font-size: 18px; padding-bottom: 22px; }

/* tabs */
.tabs { display: flex; gap: 2px; border-bottom: 1px solid var(--line); margin: 6px 0 16px; }
.tabs a { padding: 8px 14px; color: var(--muted); font-weight: 560; border-bottom: 2px solid transparent; margin-bottom: -1px; }
.tabs a.on { color: var(--text); border-color: var(--accent); }
.tabs a:hover { text-decoration: none; color: var(--text); }

.empty { padding: 34px; text-align: center; color: var(--muted); }
details.danger-zone summary { cursor: pointer; color: var(--crit); font-weight: 600; }

@media (max-width: 860px) {
  .shell { grid-template-columns: 1fr; }
  .side { position: static; height: auto; flex-direction: row; flex-wrap: wrap; align-items: center; padding: 10px; }
  .brand { padding: 0 8px 0 0; }
  .nav { display: flex; flex-wrap: wrap; }
  .nav .sep { display: none; }
  .side-foot { margin: 0 0 0 auto; border: 0; padding: 0; }
  .main { padding: 16px; }
  .hide-sm { display: none; }
  .kv { grid-template-columns: 110px 1fr; }
}


/* ================= dashboard v2 ================= */
.grow { flex: 1; }
.nowrap { white-space: nowrap; }
.warn-ink { color: var(--warn-ink); font-weight: 600; }
.tile { display: flex; flex-direction: column; }
.tile .v .of { font-size: 15px; font-weight: 500; color: var(--faint); }
.tile .v.crit { color: var(--crit); } .tile .v.warn { color: var(--warn-ink); }
.tile .d { margin-top: auto; padding-top: 6px; font-size: 12px; color: var(--muted); display: flex; gap: 6px; flex-wrap: wrap; min-height: 24px; align-items: center; }
.bar-mini { margin-top: auto; height: 6px; border-radius: 3px; background: var(--data-track); overflow: hidden; }
.tile .bar-mini { margin-top: 12px; }
.bar-mini i { display: block; height: 100%; background: var(--ok); border-radius: 3px; }

/* status chip: glyph carries the state (shape + color), label stays in text ink */
.chip { display: inline-flex; align-items: center; gap: 6px; padding: 1px 9px 1px 6px; border-radius: 99px;
  font-size: 12px; font-weight: 560; color: var(--text); background: var(--panel-2); border: 1px solid var(--line); white-space: nowrap; line-height: 1.6; }
.chip.warn { background: var(--warn-bg); border-color: transparent; }
.chip.crit { background: var(--crit-bg); border-color: transparent; }
.chip.ok { color: var(--muted); }
.glyph { width: 12px; height: 12px; border-radius: 3px; flex: none; display: inline-grid; place-items: center;
  font: 800 9px/1 var(--sans); font-style: normal; }
.ok > .glyph { background: var(--ok); }
.warn > .glyph { background: var(--warn); color: #3d2600; }
.warn > .glyph::after { content: "!"; }
.crit > .glyph { background: var(--crit); color: #fff; }
.crit > .glyph::after { content: "×"; font-size: 11px; }
.na > .glyph { background: transparent; box-shadow: inset 0 0 0 1.5px var(--na); }
.legend { display: flex; gap: 6px; flex-wrap: wrap; }
.legend .chip { background: transparent; border-color: transparent; padding: 0 6px 0 0; color: var(--muted); }

/* overview: fleet map + needs attention */
.overview { display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr); gap: 16px; margin-bottom: 16px; align-items: start; }
.overview.single { grid-template-columns: 1fr; }
.overview > .panel + .panel { margin-top: 0; }
.fm-row { display: grid; grid-template-columns: 130px 1fr; gap: 12px; align-items: start; padding: 7px 0; border-top: 1px solid var(--line); }
.fm-row:first-of-type { border-top: 0; }
.fm-cust { font-weight: 620; font-size: 13px; color: var(--text); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; padding-top: 2px; }
.fm-cust .faint { font-weight: 500; margin-left: 4px; }
.fm-cells { display: flex; flex-wrap: wrap; gap: 4px; }
.cell { width: 20px; height: 20px; border-radius: 4px; display: grid; place-items: center; outline-offset: 2px; }
.cell .glyph { width: 100%; height: 100%; border-radius: 4px; font-size: 12px; }
.cell.crit .glyph::after { font-size: 15px; }
.cell:hover .glyph, .cell:focus-visible .glyph { box-shadow: 0 0 0 2px var(--panel), 0 0 0 4px var(--text); }
.cell.na:hover .glyph { box-shadow: inset 0 0 0 1.5px var(--na), 0 0 0 2px var(--panel), 0 0 0 4px var(--text); }
.attention .alert-item.link { color: inherit; padding: 9px 8px; margin: 0 -8px; border-radius: 6px; align-items: center; }
.attention .alert-item.link:hover { background: var(--panel-2); text-decoration: none; }
.ai-body { flex: 1; min-width: 0; }
.ai-body .muted { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.attention .chip { min-width: 78px; }

/* fleet table */
table.fleet { table-layout: fixed; min-width: 980px; }
table.fleet col.c-name { width: 25%; } table.fleet col.c-status { width: 12%; } table.fleet col.c-cpu { width: 14%; }
table.fleet col.c-mem { width: 13%; } table.fleet col.c-gw { width: 14%; } table.fleet col.c-ver { width: 10%; }
table.fleet col.c-bk { width: 6%; } table.fleet col.c-gui { width: 72px; }
table.fleet td { padding: 8px 12px; }
table.fleet th { padding: 0; }
table.fleet th:not([data-sort]) { padding: 9px 12px; }
table.fleet th button { all: unset; box-sizing: border-box; display: flex; align-items: center; gap: 4px; width: 100%; padding: 9px 12px; cursor: pointer; }
table.fleet th button:hover { color: var(--text); }
table.fleet th button:focus-visible { outline: 2px solid var(--accent); outline-offset: -2px; }
table.fleet th[aria-sort="ascending"] button::after { content: "↑"; color: var(--text); }
table.fleet th[aria-sort="descending"] button::after { content: "↓"; color: var(--text); }
table.fleet th[aria-sort="ascending"], table.fleet th[aria-sort="descending"] { color: var(--text); }
.name-cell { min-width: 0; }
.name-cell .nm { display: flex; align-items: center; gap: 6px; min-width: 0; }
.name-cell .fw-name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.sub-line { font-size: 12px; color: var(--faint); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.sub-line .mono { font-size: 11.5px; }
.count { flex: none; min-width: 18px; height: 18px; padding: 0 5px; border-radius: 9px; display: inline-grid; place-items: center;
  font: 700 11px/1 var(--sans); }
.count.crit { background: var(--crit); color: #fff; } .count.warn { background: var(--warn); color: #3d2600; }
tr.fw-row.st-crit td:first-child { box-shadow: inset 3px 0 0 var(--crit); }
tr.fw-row.st-warn td:first-child { box-shadow: inset 3px 0 0 var(--warn); }
.group-row td { padding: 0 12px; }
.grp-toggle { all: unset; cursor: pointer; display: inline-flex; align-items: center; gap: 6px; padding: 8px 0; font-weight: 650; color: var(--text); }
.grp-toggle:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 4px; }
.grp-toggle .caret { display: inline-block; transition: transform .15s; color: var(--muted); width: 12px; }
.grp-sum { display: inline-flex; gap: 6px; margin-left: 10px; vertical-align: middle; font-weight: 500; }
.grp-sum .chip { font-size: 11.5px; }
tbody.grp.collapsed tr.fw-row { display: none; }
tbody.grp.collapsed .caret { transform: rotate(-90deg); }
.spark-cell { display: flex; align-items: center; gap: 8px; }
.spark { flex: none; overflow: visible; }
.spark-line { fill: none; stroke: var(--data); stroke-width: 1.5; stroke-linejoin: round; stroke-linecap: round; }
.spark-line-dot { fill: var(--data); }
.spark-thr { stroke: var(--line); stroke-width: 1; stroke-dasharray: 2 2; }
.spark-end { fill: var(--data); stroke: var(--panel); stroke-width: 1.5; }
.spark-end.warn { fill: var(--warn); } .spark-end.crit { fill: var(--crit); }
.spark-empty { display: inline-block; width: 84px; height: 1px; background: var(--line); }
.spark-cell .n { font: 12px var(--mono); color: var(--muted); min-width: 34px; text-align: right; font-variant-numeric: tabular-nums; }
.spark-cell .n.warn { color: var(--warn-ink); font-weight: 700; } .spark-cell .n.crit { color: var(--crit); font-weight: 700; }
td .meter { min-width: 0; }
td .meter .bar { min-width: 40px; }
.tag { display: inline-block; margin-top: 2px; padding: 0 6px; border-radius: 4px; font-size: 11px; font-weight: 600;
  color: var(--warn-ink); background: var(--warn-bg); }
.tip { position: absolute; z-index: 50; max-width: 360px; padding: 6px 9px; border-radius: 6px; font-size: 12px; line-height: 1.4;
  background: var(--text); color: var(--panel); pointer-events: none; box-shadow: 0 4px 14px rgba(0,0,0,.25); }

@media (max-width: 1100px) { .overview { grid-template-columns: 1fr; } }
@media (max-width: 860px) {
  .fm-row { grid-template-columns: 1fr; gap: 6px; }
  /* keep the full table and scroll sideways rather than squeezing columns */
  table.fleet .hide-sm { display: table-cell; }
}
[hidden] { display: none !important; }
.ver-cell { display: flex; align-items: center; gap: 6px; white-space: nowrap; }
.ver-cell .tag { margin-top: 0; }