:root {
  --bg: #f4f5f7;
  --panel: #ffffff;
  --text: #1d2330;
  --muted: #6b7385;
  --line: #e2e5eb;
  --accent: #2f6fde;
  --accent-text: #ffffff;
  --ok: #1f8a4c;
  --ok-bg: #e3f4ea;
  --warn: #a96500;
  --warn-bg: #fdf1dc;
  --bad: #c0352b;
  --bad-bg: #fbe5e3;
  --code: #f0f2f5;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14171d;
    --panel: #1c2028;
    --text: #e3e6ec;
    --muted: #8d95a6;
    --line: #2c323d;
    --accent: #5b93f0;
    --accent-text: #0d1117;
    --ok: #4cc27f;
    --ok-bg: #173325;
    --warn: #e5a54a;
    --warn-bg: #3a2c14;
    --bad: #f0786d;
    --bad-bg: #3d1d1b;
    --code: #232833;
  }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font: 15px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
.top { display: flex; align-items: center; gap: 24px; padding: 10px 24px; background: var(--panel); border-bottom: 1px solid var(--line); flex-wrap: wrap; position: sticky; top: 0; z-index: 5; }
.brand { font-weight: 700; font-size: 17px; }
.brand span { font-weight: 400; color: var(--muted); font-size: 14px; }
nav { display: flex; gap: 4px; flex-wrap: wrap; flex: 1; }
nav a { padding: 6px 12px; border-radius: 6px; color: var(--text); }
nav a:hover { background: var(--bg); text-decoration: none; }
nav a.active { background: var(--accent); color: var(--accent-text); }
.logout { display: flex; align-items: center; gap: 8px; color: var(--muted); font-size: 14px; }
main { max-width: 1200px; margin: 0 auto; padding: 20px 24px 60px; }
h1 { font-size: 24px; margin: 6px 0 16px; }
h1 small { font-size: 14px; font-weight: 400; color: var(--muted); margin-left: 8px; }
h2 { font-size: 17px; margin: 0 0 12px; }
section { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 16px 18px; margin-bottom: 18px; }
section.note { border-color: var(--accent); }
.section-head { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-bottom: 12px; flex-wrap: wrap; }
.section-head h2 { margin: 0; }
summary { cursor: pointer; }
summary h2 { display: inline; }
details[open] > summary { margin-bottom: 12px; }
.muted { color: var(--muted); }
.small { font-size: 13px; }
.mono, code, pre { font-family: ui-monospace, SFMono-Regular, Consolas, monospace; }
code { background: var(--code); padding: 1px 5px; border-radius: 4px; }
pre { background: var(--code); padding: 10px 12px; border-radius: 6px; overflow-x: auto; font-size: 12.5px; white-space: pre-wrap; word-break: break-all; margin: 8px 0; }
pre.codes { font-size: 15px; white-space: pre; word-break: normal; }
.nowrap { white-space: nowrap; }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font-size: 12px; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); font-weight: 600; }
td.num, th.num { text-align: right; }
.w40 { width: 40%; }
.w25 { width: 25%; }
tr.expandable { cursor: pointer; }
tr.expandable:hover td { background: var(--bg); }
tr.details { display: none; }
tr.expandable.open + tr.details { display: table-row; }
tr.expandable.open td { background: var(--bg); border-bottom-color: transparent; }
tr.details td { background: var(--bg); }
.cmd { word-break: break-all; }
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 14px; margin-bottom: 18px; }
section .cards { margin-bottom: 0; }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 14px 16px; }
.card .k { color: var(--muted); font-size: 13px; }
.card .v { font-size: 24px; font-weight: 650; margin: 2px 0 8px; }
.card .v small { font-size: 14px; font-weight: 400; color: var(--muted); }
.bar { position: relative; height: 18px; background: var(--code); border-radius: 5px; overflow: hidden; min-width: 120px; }
.bar > div { height: 100%; }
.bar.ok > div { background: var(--ok-bg); border-right: 2px solid var(--ok); }
.bar.warn > div { background: var(--warn-bg); border-right: 2px solid var(--warn); }
.bar.bad > div { background: var(--bad-bg); border-right: 2px solid var(--bad); }
.bar span { position: absolute; left: 8px; top: 0; font-size: 12px; line-height: 18px; white-space: nowrap; }
.badge { display: inline-block; padding: 1px 8px; border-radius: 10px; font-size: 12.5px; font-weight: 600; white-space: nowrap; }
.badge.ok { background: var(--ok-bg); color: var(--ok); }
.badge.warn { background: var(--warn-bg); color: var(--warn); }
.badge.bad { background: var(--bad-bg); color: var(--bad); }
.badge.muted { background: var(--code); color: var(--muted); }
.flash { padding: 10px 14px; border-radius: 8px; margin-bottom: 14px; border: 1px solid; }
.flash.ok { background: var(--ok-bg); color: var(--ok); }
.flash.warn { background: var(--warn-bg); color: var(--warn); }
.flash.bad { background: var(--bad-bg); color: var(--bad); }
.services { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 10px; }
.svc { display: flex; gap: 10px; align-items: flex-start; padding: 8px 10px; border: 1px solid var(--line); border-radius: 8px; }
.dot { width: 10px; height: 10px; border-radius: 50%; margin-top: 6px; flex: none; }
.dot.ok { background: var(--ok); }
.dot.bad { background: var(--bad); }
.charts { display: grid; gap: 14px; }
.chart svg { width: 100%; height: 160px; display: block; background: var(--code); border-radius: 6px; }
.chart-head { display: flex; justify-content: space-between; font-size: 13px; margin-bottom: 4px; }
.chart-head span { color: var(--muted); }
.chart .line { fill: none; stroke: var(--accent); stroke-width: 1.6; vector-effect: non-scaling-stroke; }
.chart .grid { stroke: var(--line); stroke-width: 1; vector-effect: non-scaling-stroke; }
.chart .lbl { fill: var(--muted); font-size: 11px; }
.chart.empty { color: var(--muted); }
.tabs { display: flex; gap: 4px; }
.tabs a { padding: 4px 12px; border: 1px solid var(--line); border-radius: 6px; color: var(--text); }
.tabs a.active { background: var(--accent); border-color: var(--accent); color: var(--accent-text); }
input, select, button, .button { font: inherit; padding: 7px 10px; border: 1px solid var(--line); border-radius: 6px; background: var(--panel); color: var(--text); }
input:focus, select:focus { outline: 2px solid var(--accent); outline-offset: -1px; }
button, .button { background: var(--accent); color: var(--accent-text); border-color: var(--accent); cursor: pointer; font-weight: 600; display: inline-block; }
button:hover, .button:hover { filter: brightness(1.08); text-decoration: none; }
button.secondary { background: var(--panel); color: var(--text); border-color: var(--line); }
button.warn { background: var(--warn); border-color: var(--warn); color: #fff; }
button.danger { background: var(--bad); border-color: var(--bad); color: #fff; }
button.link { background: none; border: none; color: var(--accent); padding: 0; font-weight: 400; }
label { display: flex; flex-direction: column; gap: 4px; font-size: 13px; color: var(--muted); }
label input, label select { color: var(--text); font-size: 15px; }
label.check { flex-direction: row; align-items: center; gap: 8px; color: var(--text); font-size: 14px; }
form.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 12px; align-items: end; }
form.inline { display: flex; gap: 10px; align-items: flex-end; flex-wrap: wrap; margin: 6px 0; }
form.stack { display: flex; flex-direction: column; gap: 10px; max-width: 360px; margin-bottom: 18px; }
form.search { margin-bottom: 16px; }
form.search input[name] { min-width: 280px; }
.addr { display: flex; gap: 6px; align-items: center; }
.addr input { flex: 1; min-width: 0; }
.addr span { color: var(--text); }
.actions { display: flex; flex-direction: column; gap: 4px; margin-bottom: 8px; }
.two { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.two section { margin-bottom: 18px; }
.iplist { display: flex; flex-wrap: wrap; gap: 6px 14px; font-size: 13px; }
.login { max-width: 420px; margin: 40px auto; background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 24px; }
.login form { display: flex; flex-direction: column; gap: 12px; }
.qr { display: flex; justify-content: center; margin: 12px 0; }
.qr svg { width: 220px; height: 220px; background: #fff; border-radius: 6px; }
input.filter { min-width: 220px; }
ul { padding-left: 18px; }
li { margin: 4px 0; }
@media (max-width: 760px) {
  main { padding: 14px 16px 40px; }
  .top { padding: 10px 16px; gap: 10px; }
  .two { grid-template-columns: 1fr; }
  table { display: block; overflow-x: auto; }
  form.search input[name] { min-width: 0; flex: 1; }
}
.warn-text { color: var(--warn); }
.desc { margin: 3px 0 4px; max-width: 70ch; }