:root {
  color-scheme: light;
  --screen: #e5e7e9;
  --surface: #f1f2f3;
  --card: #fafbfb;
  --well: #eceeef;
  --line: #c5c9cc;
  --line-strong: #9ba1a6;
  --text: #22272b;
  --muted: #555e64;
  --quiet: #697279;
  --neutral-fill: #a7adb2;
  --neutral-track: #d7dbde;
  --warning: #785000;
  --warning-bg: #fff1c7;
  --warning-line: #d2aa4d;
  --critical: #a51d1d;
  --critical-bg: #fde8e7;
  --critical-line: #d87973;
  --sans: "Segoe UI", Arial, sans-serif;
  --mono: Consolas, "SFMono-Regular", monospace;
}

* { box-sizing: border-box; }
body { margin: 0; background: var(--screen); color: var(--text); font: 14px/1.45 var(--sans); }
button { color: inherit; font: inherit; }
.topbar { min-height: 62px; padding: 0 max(calc((100vw - 1280px) / 2), 24px); display: flex; align-items: center; justify-content: space-between; gap: 18px; background: #d9dcde; border-bottom: 1px solid var(--line-strong); }
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); text-decoration: none; font-size: 14px; font-weight: 700; letter-spacing: .5px; }
.brand-mark { width: 30px; height: 30px; display: grid; place-items: center; border: 1px solid var(--line-strong); border-radius: 3px; background: var(--surface); color: var(--muted); font: 600 11px var(--mono); }
.brand small { display: block; margin-top: 2px; color: var(--muted); font: 10px var(--sans); font-weight: 400; letter-spacing: .15px; }
.top-right { display: flex; align-items: center; gap: 20px; }
.connection { display: inline-flex; align-items: center; gap: 7px; color: var(--muted); font: 11px var(--mono); }
.connection i, .state-mark { display: inline-block; width: 8px; height: 8px; border: 1px solid var(--line-strong); border-radius: 50%; background: #c5c9cc; }
.connection.warn, .state-warn { color: var(--warning); }
.connection.warn i, .state-warn .state-mark { border-color: var(--warning-line); background: #dba928; }
.clock { color: var(--muted); font: 11px var(--mono); font-variant-numeric: tabular-nums; }

main { width: min(1280px, 100%); margin: 0 auto; padding: 24px; }
.intro { display: flex; align-items: end; justify-content: space-between; gap: 16px; margin: 4px 0 18px; }
.eyebrow { color: var(--muted); font: 10px var(--mono); letter-spacing: .5px; text-transform: uppercase; }
h1 { margin: 6px 0 3px; font-size: 23px; line-height: 1.2; font-weight: 600; letter-spacing: 0; }
h2 { margin: 0 0 2px; font-size: 16px; font-weight: 600; }
h3 { margin: 0; font-size: 14px; font-weight: 600; }
p { margin: 0; color: var(--muted); }
.intro p, .section-head p { font-size: 12px; }
.live { color: var(--muted); font: 10px var(--mono); letter-spacing: .3px; white-space: nowrap; }
.summary { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 9px; margin-bottom: 24px; }
.summary-card { min-height: 70px; padding: 11px 13px; border: 1px solid var(--line); background: var(--surface); }
.summary-label, .metric-label, .chart-title, .device-foot, .updated, .section-kicker { color: var(--muted); font: 10px var(--mono); letter-spacing: .15px; }
.summary-value { margin-top: 6px; font-size: 18px; line-height: 1.1; font-weight: 600; font-variant-numeric: tabular-nums; }
.summary-value.attention-text { color: var(--warning); }
.summary-value small { margin-left: 6px; color: var(--muted); font-size: 11px; font-weight: 400; }
.section-head { display: flex; align-items: end; justify-content: space-between; gap: 14px; margin-bottom: 9px; }
.updated { text-align: right; }
.devices { display: grid; gap: 12px; }
.device-card { overflow: hidden; border: 1px solid var(--line-strong); background: var(--card); }
.device-head { min-height: 52px; padding: 8px 13px; display: flex; align-items: center; justify-content: space-between; gap: 12px; background: #e7e9ea; border-bottom: 1px solid var(--line); }
.device-title { display: flex; align-items: center; gap: 9px; min-width: 0; }
.device-icon { width: 28px; height: 28px; flex: 0 0 auto; display: grid; place-items: center; border: 1px solid var(--line); color: var(--muted); background: var(--surface); font: 13px var(--mono); }
.device-title h3 { font: 600 13px var(--mono); font-variant-numeric: tabular-nums; }
.device-title p { margin-top: 1px; font-size: 11px; }
.state-group { display: flex; align-items: center; justify-content: flex-end; gap: 7px; flex-wrap: wrap; }
.state { min-height: 25px; display: inline-flex; align-items: center; gap: 6px; padding: 3px 7px; border: 1px solid var(--line); background: var(--surface); color: var(--muted); font: 10px var(--mono); white-space: nowrap; }
.state .state-mark { width: 7px; height: 7px; }
.state-warn { border-color: var(--warning-line); background: var(--warning-bg); }
.state-critical { border-color: var(--critical-line); background: var(--critical-bg); color: var(--critical); }
.state-critical .state-mark { border-color: var(--critical); background: var(--critical); }
.device-body { padding: 12px 13px 13px; }
.metrics { display: grid; grid-template-columns: repeat(7, minmax(0, 1fr)); gap: 7px; margin-bottom: 10px; }
.metric { min-width: 0; padding: 8px 9px; border: 1px solid var(--line); background: var(--well); }
.metric-label { display: flex; align-items: baseline; justify-content: space-between; gap: 3px; font-size: 9px; line-height: 1.3; }
.metric-value { margin-top: 5px; font-size: 16px; line-height: 1.1; font-weight: 600; font-variant-numeric: tabular-nums; white-space: nowrap; }
.metric-value small { margin-left: 4px; color: var(--muted); font: 10px var(--mono); }
.metric-detail { margin-top: 5px; color: var(--quiet); font: 9px var(--mono); }
.level-track { height: 5px; margin-top: 7px; overflow: hidden; background: var(--neutral-track); border: 1px solid #c5c9cc; }
.level-fill { height: 100%; background: var(--neutral-fill); }
.scale-caption { margin-top: 3px; display: flex; justify-content: space-between; color: var(--quiet); font: 8px var(--mono); }
.metric-motor { text-transform: uppercase; }

.chart-panel { border: 1px solid var(--line); background: var(--surface); }
.chart-toolbar { min-height: 48px; padding: 7px 10px; display: flex; align-items: center; justify-content: space-between; gap: 10px; border-bottom: 1px solid var(--line); }
.chart-title { font-weight: 600; text-transform: uppercase; }
.chart-title small { display: block; margin-top: 2px; color: var(--quiet); font: 9px var(--sans); font-weight: 400; letter-spacing: 0; text-transform: none; }
.tabs { display: flex; align-items: center; gap: 3px; flex-wrap: wrap; }
.tabs button { min-height: 27px; padding: 4px 7px; border: 1px solid transparent; border-radius: 2px; background: transparent; color: var(--muted); font-size: 10px; cursor: pointer; }
.tabs button:hover { border-color: var(--line); background: #e4e6e7; }
.tabs button.active { border-color: var(--line-strong); background: #dfe2e4; color: var(--text); font-weight: 600; }
.tabs button:focus-visible { outline: 2px solid #343b40; outline-offset: 1px; }
.chart-meta { padding: 6px 10px 0; display: flex; align-items: center; justify-content: space-between; gap: 10px; color: var(--quiet); font: 9px var(--mono); }
.legend { display: flex; gap: 12px; }
.legend span { display: inline-flex; align-items: center; gap: 5px; }
.legend i { width: 14px; height: 0; border-top: 2px solid var(--line-color); }
.legend .line-x { --line-color: #424a50; }
.legend .line-y { --line-color: #6e777e; }
.legend .line-z { --line-color: #9aa1a6; }
.legend .line-y { border-top-style: dashed; }
.legend .line-z { border-top-style: dotted; }
.chart-wrap { height: 156px; padding: 2px 8px 4px; position: relative; }
.chart-wrap canvas { width: 100%; height: 100%; }
.chart-empty { position: absolute; inset: 0; display: grid; place-items: center; color: var(--muted); font-size: 11px; pointer-events: none; }
.chart-empty[hidden] { display: none; }
.device-foot { min-height: 31px; margin-top: 9px; padding-top: 7px; display: flex; align-items: baseline; justify-content: space-between; gap: 8px 14px; border-top: 1px solid var(--line); flex-wrap: wrap; font-size: 9px; }
.device-foot strong { color: var(--text); font-weight: 500; }
.device-foot .warning-text { color: var(--warning); }
.empty { display: none; padding: 32px 18px; margin-top: 5px; text-align: center; border: 1px dashed var(--line-strong); background: var(--surface); }
.empty.show { display: block; }
.empty-icon { color: var(--muted); font: 26px var(--mono); }
.empty h3 { margin: 7px 0 4px; }
.empty p { font-size: 12px; }
.empty code { color: var(--text); font: 11px var(--mono); }
footer { margin-top: 20px; padding-top: 10px; display: flex; justify-content: space-between; gap: 8px 16px; border-top: 1px solid var(--line); color: var(--quiet); font: 9px var(--mono); }

@media (max-width: 1000px) {
  .metrics { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}
@media (max-width: 680px) {
  .topbar { min-height: 56px; padding: 0 12px; }
  .top-right { gap: 10px; }
  .clock { display: none; }
  main { padding: 18px 11px; }
  .summary { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 6px; margin-bottom: 18px; }
  .summary-card { min-height: 62px; padding: 8px; }
  .summary-value { font-size: 16px; }
  .intro { align-items: start; }
  h1 { font-size: 20px; }
  .live { padding-top: 18px; }
  .updated { display: none; }
  .metrics { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .metric:nth-child(7) { grid-column: span 2; }
  .device-head, .device-body { padding-right: 9px; padding-left: 9px; }
  .state-group { gap: 4px; }
  .state { padding: 3px 5px; font-size: 9px; }
  .chart-toolbar { align-items: flex-start; flex-direction: column; }
  .chart-meta { align-items: flex-start; flex-direction: column; }
  .chart-wrap { height: 144px; }
  .device-foot { justify-content: flex-start; }
  footer { flex-direction: column; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}