:root {
  --bg: #f4f5f7; --card: #ffffff; --ink: #16202c; --muted: #647184; --line: #dfe3ea;
  --accent: #1463c4; --accent-ink: #ffffff; --ok: #1a7f4b; --ok-bg: #e3f4ea;
  --bad: #b3261e; --bad-bg: #fbe9e7; --off: #6b7482; --off-bg: #eceff3; --warn-bg: #fff4d6;
  --bar: #8fb8ec;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #11161d; --card: #1a212b; --ink: #e8edf3; --muted: #97a3b4; --line: #2b3542;
    --accent: #5aa2f5; --accent-ink: #0b1420; --ok: #58c58a; --ok-bg: #173526;
    --bad: #f08a80; --bad-bg: #3d1b18; --off: #9aa5b4; --off-bg: #252e3a; --warn-bg: #3a3116;
    --bar: #33598c;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font: 16px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
a { color: var(--accent); }
.top {
  display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap;
  padding: 12px 16px; background: var(--card); border-bottom: 1px solid var(--line);
}
.brand { font-weight: 650; color: var(--ink); text-decoration: none; }
#nav { display: flex; gap: 14px; align-items: center; flex-wrap: wrap; font-size: 15px; }
#nav a { text-decoration: none; }
#nav a.on { color: var(--ink); font-weight: 600; }
#nav .who { color: var(--muted); }
main { max-width: 860px; margin: 0 auto; padding: 20px 16px 48px; }
.pad { padding: 16px; }
h1 { font-size: 22px; margin: 4px 0 16px; }
h2 { font-size: 17px; margin: 0 0 12px; }
.muted { color: var(--muted); }
.small { font-size: 14px; }
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: 12px;
  padding: 16px; margin: 0 0 16px;
}
.narrow { max-width: 420px; margin-left: auto; margin-right: auto; }
.row { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
.spread { justify-content: space-between; }
.grow { flex: 1 1 auto; min-width: 0; }

label { display: block; font-size: 14px; color: var(--muted); margin: 12px 0 4px; }
input[type=text], input[type=email], input[type=password] {
  width: 100%; padding: 10px 12px; font: inherit; color: var(--ink);
  background: var(--bg); border: 1px solid var(--line); border-radius: 8px;
}
input:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
button {
  font: inherit; padding: 10px 16px; border-radius: 8px; cursor: pointer;
  border: 1px solid var(--accent); background: var(--accent); color: var(--accent-ink);
}
button.ghost { background: transparent; color: var(--accent); }
button.danger { background: transparent; color: var(--bad); border-color: var(--bad); }
button.sm { padding: 6px 10px; font-size: 14px; }
button:disabled { opacity: .55; cursor: default; }
.actions { margin-top: 16px; display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
.tabs { display: flex; gap: 4px; margin-bottom: 8px; }
.tabs button { flex: 1; background: transparent; color: var(--muted); border-color: var(--line); }
.tabs button.on { color: var(--ink); border-color: var(--accent); font-weight: 600; }

.msg { padding: 10px 12px; border-radius: 8px; margin: 12px 0 0; font-size: 15px; }
.msg.err { background: var(--bad-bg); color: var(--bad); }
.msg.good { background: var(--ok-bg); color: var(--ok); }
.alert { background: var(--bad-bg); color: var(--bad); padding: 12px 14px; border-radius: 10px; margin: 0 0 16px; font-weight: 600; }
.note { background: var(--warn-bg); padding: 10px 12px; border-radius: 8px; font-size: 14px; margin: 0 0 16px; }

.pill { display: inline-block; padding: 2px 10px; border-radius: 999px; font-size: 13px; font-weight: 600; white-space: nowrap; }
.pill.on { background: var(--ok-bg); color: var(--ok); }
.pill.off { background: var(--off-bg); color: var(--off); }
.pill.bad { background: var(--bad-bg); color: var(--bad); }

.dev { display: block; color: inherit; text-decoration: none; }
.dev:hover { border-color: var(--accent); }
.dev .name { font-weight: 650; font-size: 17px; overflow-wrap: anywhere; }
.kpis { display: grid; grid-template-columns: repeat(auto-fit, minmax(130px, 1fr)); gap: 10px; margin-top: 14px; }
.kpi { background: var(--bg); border-radius: 8px; padding: 10px 12px; min-width: 0; }
.kpi .v { font-size: 20px; font-weight: 650; font-variant-numeric: tabular-nums; overflow-wrap: anywhere; }
.kpi .v.text { font-size: 15px; }
.kpi .k { font-size: 13px; color: var(--muted); }

.bars { display: flex; align-items: flex-end; gap: 4px; height: 120px; margin-top: 8px; }
.bars .b { flex: 1; display: flex; flex-direction: column; justify-content: flex-end; align-items: center; height: 100%; min-width: 0; }
.bars .b i { display: block; width: 100%; background: var(--bar); border-radius: 3px 3px 0 0; min-height: 2px; }
.bars .b span { font-size: 11px; color: var(--muted); font-variant-numeric: tabular-nums; }
.bars .b em { font-size: 11px; font-style: normal; font-variant-numeric: tabular-nums; }

.events { list-style: none; margin: 0; padding: 0; }
.events li { display: flex; gap: 12px; padding: 8px 0; border-top: 1px solid var(--line); font-size: 15px; }
.events li:first-child { border-top: 0; }
.events time { color: var(--muted); white-space: nowrap; font-variant-numeric: tabular-nums; flex: 0 0 auto; }
.events .alarm { color: var(--bad); font-weight: 600; }

.tablewrap { overflow-x: auto; }
table { border-collapse: collapse; width: 100%; font-size: 14px; }
th, td { text-align: left; padding: 8px 10px; border-top: 1px solid var(--line); vertical-align: top; }
th { color: var(--muted); font-weight: 600; border-top: 0; white-space: nowrap; }
td.num { font-variant-numeric: tabular-nums; white-space: nowrap; }
code { font: 14px ui-monospace, Consolas, monospace; background: var(--bg); padding: 2px 6px; border-radius: 4px; }
.linkbox { word-break: break-all; font: 13px ui-monospace, Consolas, monospace; background: var(--bg); padding: 10px; border-radius: 8px; margin-top: 8px; user-select: all; }

.scanbox { margin-top: 12px; }
video.scan { display: block; width: 100%; max-height: 60vh; background: #000; border-radius: 10px; object-fit: cover; aspect-ratio: 4 / 3; }