/* OpsMender UI. No framework, no build step. */
:root {
  --bg: #0d1117;
  --bg-elev: #151b23;
  --bg-sunken: #0a0e13;
  --border: #262f3b;
  --border-strong: #354152;
  --text: #e6edf3;
  --text-dim: #9aa7b6;
  --text-faint: #6b7787;
  --accent: #2dd4bf;
  --accent-ink: #062b27;
  --good: #3fb950;
  --warn: #d29922;
  --bad: #f85149;
  --info: #58a6ff;
  --muted: #6b7787;
  --good-bg: rgba(63, 185, 80, .12);
  --warn-bg: rgba(210, 153, 34, .14);
  --bad-bg: rgba(248, 81, 73, .13);
  --info-bg: rgba(88, 166, 255, .12);
  --muted-bg: rgba(139, 148, 158, .12);
  --chart: #2dd4bf;
  --chart-fill: rgba(45, 212, 191, .14);
  --radius: 10px;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, sans-serif;
  color-scheme: dark;
}
@media (prefers-color-scheme: light) {
  :root {
    --bg: #f6f8fa; --bg-elev: #ffffff; --bg-sunken: #eef1f4; --border: #d8dee4; --border-strong: #c3cbd3;
    --text: #1f2328; --text-dim: #57606a; --text-faint: #7d8590; --accent: #0f9488; --accent-ink: #ffffff;
    --good: #1a7f37; --warn: #9a6700; --bad: #cf222e; --info: #0969da; --muted: #7d8590;
    --good-bg: #dafbe1; --warn-bg: #fff8c5; --bad-bg: #ffebe9; --info-bg: #ddf4ff; --muted-bg: #eaeef2;
    --chart: #0f9488; --chart-fill: rgba(15, 148, 136, .12);
    color-scheme: light;
  }
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body { background: var(--bg); color: var(--text); font: 14px/1.5 var(--sans); }
a { color: var(--info); text-decoration: none; }
a:hover { text-decoration: underline; }
code, pre, .mono { font-family: var(--mono); font-size: 12.5px; }
h1 { font-size: 22px; margin: 0; letter-spacing: -.01em; }
h2 { font-size: 15px; margin: 0 0 12px; }
h3 { font-size: 13px; margin: 16px 0 8px; color: var(--text-dim); text-transform: uppercase; letter-spacing: .04em; }
p { margin: 0 0 10px; }
.dim { color: var(--text-dim); }
.faint { color: var(--text-faint); }
.small { font-size: 12px; }
.nowrap { white-space: nowrap; }
.right { text-align: right; }

/* Layout */
.shell { display: grid; grid-template-columns: 220px 1fr; min-height: 100vh; }
.sidebar { background: var(--bg-sunken); border-right: 1px solid var(--border); padding: 18px 12px; position: sticky; top: 0; height: 100vh; display: flex; flex-direction: column; }
.brand { display: flex; align-items: center; gap: 10px; padding: 4px 10px 18px; font-weight: 700; font-size: 16px; color: var(--text); }
.brand:hover { text-decoration: none; }
.brand-mark { width: 26px; height: 26px; border-radius: 7px; background: var(--accent); color: var(--accent-ink); display: grid; place-items: center; font-size: 14px; font-weight: 800; }
.nav a { display: flex; align-items: center; justify-content: space-between; padding: 7px 10px; border-radius: 7px; color: var(--text-dim); font-weight: 500; }
.nav a:hover { background: var(--bg-elev); color: var(--text); text-decoration: none; }
.nav a.active { background: var(--bg-elev); color: var(--text); box-shadow: inset 2px 0 0 var(--accent); }
.nav .count { font-size: 11px; padding: 1px 7px; border-radius: 999px; background: var(--bad-bg); color: var(--bad); font-weight: 600; }
.nav .count.warn { background: var(--warn-bg); color: var(--warn); }
.sidebar-foot { margin-top: auto; padding: 10px; font-size: 11.5px; color: var(--text-faint); line-height: 1.6; }
.main { min-width: 0; }
.topbar { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 14px 28px; border-bottom: 1px solid var(--border); background: var(--bg); position: sticky; top: 0; z-index: 5; }
.topbar .sync { display: flex; align-items: center; gap: 10px; color: var(--text-dim); font-size: 12.5px; }
.content { padding: 24px 28px 48px; max-width: 1400px; }
.page-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 16px; margin-bottom: 20px; flex-wrap: wrap; }
.page-head .sub { color: var(--text-dim); margin-top: 4px; }

/* Cards & grids */
.card { background: var(--bg-elev); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px 18px; min-width: 0; }
.card + .card { margin-top: 16px; }
.card-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 12px; }
.card-head h2 { margin: 0; }
.grid { display: grid; gap: 16px; }
.grid > .card + .card { margin-top: 0; }
.g2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.g3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.g4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.split { display: grid; grid-template-columns: minmax(0, 2fr) minmax(0, 1fr); gap: 16px; align-items: start; }
.stack > * + * { margin-top: 16px; }
.tiles { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; margin-bottom: 16px; }
.tile { background: var(--bg-elev); border: 1px solid var(--border); border-radius: var(--radius); padding: 14px 16px; }
.tile .label { color: var(--text-dim); font-size: 12px; text-transform: uppercase; letter-spacing: .05em; }
.tile .value { font-size: 26px; font-weight: 700; margin: 4px 0 2px; font-variant-numeric: tabular-nums; }
.tile .meta { font-size: 12.5px; color: var(--text-dim); display: flex; gap: 10px; flex-wrap: wrap; }

/* Server cards */
.server-card .name { font-weight: 600; font-size: 15px; color: var(--text); }
.server-card .addr { color: var(--text-faint); font-family: var(--mono); font-size: 12px; }
.meters { display: grid; gap: 8px; margin-top: 12px; }
.meter { display: grid; grid-template-columns: 44px 1fr 48px; align-items: center; gap: 10px; font-size: 12px; color: var(--text-dim); }
.meter .bar { height: 6px; background: var(--bg-sunken); border-radius: 99px; overflow: hidden; border: 1px solid var(--border); }
.meter .fill { height: 100%; border-radius: 99px; background: var(--good); }
.meter .fill.warn { background: var(--warn); }
.meter .fill.bad { background: var(--bad); }
.meter .fill.muted { background: var(--muted); }
.meter .num { text-align: right; font-variant-numeric: tabular-nums; color: var(--text); }

/* Charts */
.chart { width: 100%; height: 64px; display: block; }
.chart.tall { height: 120px; }
.chart-line { fill: none; stroke: var(--chart); stroke-width: 1.6; }
.chart-area { fill: var(--chart-fill); }
.chart-empty { height: 64px; display: grid; place-items: center; color: var(--text-faint); font-size: 12px; border: 1px dashed var(--border); border-radius: 8px; }
.chart-box .chart, .chart-box .chart-empty { height: 120px; }
.chart-box .head { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 6px; }
.chart-box .big { font-size: 20px; font-weight: 700; font-variant-numeric: tabular-nums; }

/* Badges */
.badge { display: inline-flex; align-items: center; gap: 6px; padding: 2px 9px; border-radius: 999px; font-size: 12px; font-weight: 600; white-space: nowrap; }
.badge::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
.badge.plain::before { display: none; }
.b-ok, .b-good { background: var(--good-bg); color: var(--good); }
.b-warning, .b-warn { background: var(--warn-bg); color: var(--warn); }
.b-down, .b-bad, .b-critical, .b-error { background: var(--bad-bg); color: var(--bad); }
.b-stopped, .b-unknown, .b-muted, .b-resolved { background: var(--muted-bg); color: var(--text-dim); }
.b-info, .b-open { background: var(--info-bg); color: var(--info); }
.risk-safe { background: var(--good-bg); color: var(--good); }
.risk-low { background: var(--info-bg); color: var(--info); }
.risk-medium { background: var(--warn-bg); color: var(--warn); }
.risk-danger { background: var(--bad-bg); color: var(--bad); }
.kind { font-size: 11px; color: var(--text-faint); text-transform: uppercase; letter-spacing: .05em; }

/* Tables */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 9px 10px; border-bottom: 1px solid var(--border); vertical-align: middle; }
th { font-size: 11.5px; color: var(--text-faint); text-transform: uppercase; letter-spacing: .05em; font-weight: 600; }
tr:last-child td { border-bottom: none; }
tbody tr:hover { background: rgba(127, 127, 127, .04); }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }

/* Lists */
.list { list-style: none; padding: 0; margin: 0; }
.list li { padding: 10px 0; border-bottom: 1px solid var(--border); display: flex; gap: 10px; align-items: flex-start; justify-content: space-between; }
.list li:last-child { border-bottom: none; }
.list .title { font-weight: 600; color: var(--text); }
.timeline { list-style: none; margin: 0; padding: 0; }
.timeline li { display: grid; grid-template-columns: 74px 10px 1fr; gap: 10px; padding: 6px 0; font-size: 13px; }
.timeline .t { color: var(--text-faint); font-size: 12px; text-align: right; }
.timeline .dot { width: 8px; height: 8px; border-radius: 50%; margin-top: 6px; background: var(--muted); }
.timeline .dot.error { background: var(--bad); }
.timeline .dot.warning { background: var(--warn); }
.timeline .dot.info { background: var(--info); }
.empty { color: var(--text-faint); padding: 18px 0; text-align: center; }

/* Forms & buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 6px; padding: 7px 14px; border-radius: 8px; border: 1px solid var(--border-strong); background: var(--bg-elev); color: var(--text); font: inherit; font-weight: 600; cursor: pointer; white-space: nowrap; }
.btn:hover { border-color: var(--text-faint); text-decoration: none; }
.btn.primary { background: var(--accent); color: var(--accent-ink); border-color: transparent; }
.btn.primary:hover { filter: brightness(1.08); }
.btn.danger { color: var(--bad); }
.btn.small { padding: 4px 10px; font-size: 12.5px; }
.btn[disabled] { opacity: .5; cursor: not-allowed; }
.btn-row { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
form.inline { display: inline; }
label { display: block; font-weight: 600; font-size: 13px; margin-bottom: 4px; }
.field { margin-bottom: 14px; }
.field .help { color: var(--text-faint); font-size: 12px; margin-top: 4px; font-weight: 400; }
input[type=text], input[type=password], input[type=url], input[type=number], select, textarea {
  width: 100%; padding: 8px 10px; border-radius: 8px; border: 1px solid var(--border-strong); background: var(--bg-sunken);
  color: var(--text); font: inherit;
}
input:focus, select:focus, textarea:focus { outline: 2px solid var(--accent); outline-offset: -1px; border-color: transparent; }
.check { display: flex; align-items: center; gap: 8px; font-weight: 500; }
.check input { width: 16px; height: 16px; accent-color: var(--accent); }
.form-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 0 16px; }

/* Flash */
.flash { padding: 10px 14px; border-radius: 8px; margin-bottom: 14px; border: 1px solid transparent; }
.flash.success { background: var(--good-bg); color: var(--good); }
.flash.error { background: var(--bad-bg); color: var(--bad); }
.flash.info { background: var(--info-bg); color: var(--info); }
.flash.warning { background: var(--warn-bg); color: var(--warn); }

/* Code / logs */
pre.code, pre.logs { background: var(--bg-sunken); border: 1px solid var(--border); border-radius: 8px; padding: 12px; overflow: auto; max-height: 460px; white-space: pre-wrap; word-break: break-word; margin: 0; }
pre.logs { max-height: 560px; font-size: 12px; line-height: 1.45; }
.copy-wrap { position: relative; }
.copy-wrap .btn { position: absolute; top: 8px; right: 8px; }

/* Findings & AI */
.finding { border: 1px solid var(--border); border-left: 3px solid var(--warn); border-radius: 8px; padding: 12px 14px; }
.finding.critical { border-left-color: var(--bad); }
.finding + .finding { margin-top: 10px; }
.finding .ftitle { font-weight: 700; }
.finding ul { margin: 6px 0 0; padding-left: 18px; }
.finding.info { border-left-color: var(--info); }
.finding pre.code { margin-top: 8px; }
.finding .sample { margin-top: 8px; font-family: var(--mono); font-size: 12px; color: var(--text-dim); background: var(--bg-sunken); border-radius: 6px; padding: 6px 8px; word-break: break-word; }
.ai-answer h3, .ai-answer h4 { text-transform: none; letter-spacing: 0; color: var(--text); font-size: 14px; margin: 16px 0 6px; }
.ai-answer h3:first-child, .ai-answer h4:first-child { margin-top: 0; }
.ai-answer pre { background: var(--bg-sunken); border: 1px solid var(--border); border-radius: 8px; padding: 10px; overflow: auto; }
.ai-answer ul, .ai-answer ol { padding-left: 20px; margin: 6px 0 10px; }
.ai-answer code { background: var(--bg-sunken); padding: 1px 5px; border-radius: 4px; }
.kv { display: grid; grid-template-columns: max-content 1fr; gap: 6px 16px; font-size: 13px; }
.kv dt { color: var(--text-dim); }
.kv dd { margin: 0; word-break: break-word; }
.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--border); margin-bottom: 14px; }
.tabs a { padding: 6px 12px; color: var(--text-dim); border-bottom: 2px solid transparent; margin-bottom: -1px; font-weight: 600; }
.tabs a.active { color: var(--text); border-bottom-color: var(--accent); }
.tabs a:hover { text-decoration: none; color: var(--text); }
.callout { background: var(--info-bg); border-radius: 8px; padding: 12px 14px; color: var(--text); }
.callout.warn { background: var(--warn-bg); }
details summary { cursor: pointer; color: var(--text-dim); font-weight: 600; }
details[open] summary { margin-bottom: 8px; }
.steps { counter-reset: step; list-style: none; padding: 0; margin: 0; }
.steps > li { counter-increment: step; position: relative; padding-left: 36px; margin-bottom: 16px; }
.steps > li::before { content: counter(step); position: absolute; left: 0; top: 0; width: 24px; height: 24px; border-radius: 50%; background: var(--accent); color: var(--accent-ink); font-weight: 700; font-size: 12px; display: grid; place-items: center; }

/* Auth pages */
.auth { min-height: 100vh; display: grid; place-items: center; padding: 24px; }
.auth .card { width: 100%; max-width: 400px; padding: 28px; }
.auth .brand { justify-content: center; padding-bottom: 8px; font-size: 20px; }
.auth .tag { text-align: center; color: var(--text-dim); margin-bottom: 22px; }

@media (max-width: 1100px) {
  .tiles, .g4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .g3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .split { grid-template-columns: 1fr; }
}
@media (max-width: 760px) {
  .shell { grid-template-columns: 1fr; }
  .sidebar { position: static; height: auto; flex-direction: row; flex-wrap: wrap; align-items: center; gap: 4px; padding: 10px 16px; }
  .brand { padding: 0 10px 0 0; }
  .nav { display: flex; flex-wrap: wrap; gap: 2px; }
  .sidebar-foot { display: none; }
  .topbar, .content { padding-left: 16px; padding-right: 16px; }
  .tiles, .g2, .g3, .g4 { grid-template-columns: 1fr; }
}