:root {
  --bg: #f1f4f7; --card: #fff; --text: #1b2430; --muted: #6b7785; --line: #dde3ea;
  --brand: #14b8a6; --brand-d: #0f9488; --side: #1b2530; --side-text: #c9d3de;
  --ok: #1a9d55; --bad: #d8453b; --warn: #e89a1c; --screen: #0c0f13;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #11161c; --card: #1a212a; --text: #e6ebf1; --muted: #92a0b0; --line: #2b3541; }
}
* { box-sizing: border-box; }
body { margin: 0; font: 14px/1.45 system-ui, sans-serif; background: var(--bg); color: var(--text); }
.hidden { display: none !important; }
.center { min-height: 100vh; display: grid; place-items: center; padding: 16px; }
a { color: var(--brand-d); }
h1, h2, h3 { margin: 0 0 12px; }
h2 { font-size: 18px; }
h3 { font-size: 15px; }
.brand-sub { font-size: 14px; color: var(--muted); font-weight: 400; }

/* layout */
#app { display: flex; min-height: 100vh; }
#side { width: 220px; background: var(--side); color: var(--side-text); flex: 0 0 220px; }
.logo { padding: 18px 16px; font-weight: 700; font-size: 18px; color: #fff; letter-spacing: .5px; }
.logo span { color: var(--brand); font-weight: 400; font-size: 13px; display: block; }
#menu a { display: block; padding: 11px 18px; color: var(--side-text); text-decoration: none; border-left: 3px solid transparent; }
#menu a:hover { background: #243040; }
#menu a.on { background: #0f1720; color: #fff; border-left-color: var(--brand); }
#menu .sec { padding: 14px 18px 4px; font-size: 11px; text-transform: uppercase; letter-spacing: 1px; color: #6e7d8f; }
#content { flex: 1; min-width: 0; }
header { display: flex; align-items: center; gap: 12px; padding: 10px 18px; background: var(--card); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 5; }
#burger { display: none; }
.grow { flex: 1; }
main { padding: 16px 18px; max-width: 1500px; }

/* controls */
.card { background: var(--card); border: 1px solid var(--line); border-radius: 8px; padding: 16px; margin-bottom: 16px; }
.narrow { width: min(360px, 100%); }
label { display: block; margin-bottom: 10px; color: var(--muted); font-size: 12px; }
input, select, textarea { display: block; width: 100%; margin-top: 4px; padding: 7px 8px; border: 1px solid var(--line); border-radius: 5px; background: var(--bg); color: var(--text); font: inherit; }
input[type=checkbox] { display: inline-block; width: auto; margin: 0 4px 0 0; }
button { padding: 7px 13px; border: 1px solid var(--line); border-radius: 5px; background: var(--card); color: var(--text); cursor: pointer; font: inherit; }
button:hover { border-color: var(--brand); }
button.primary { background: var(--brand); color: #fff; border-color: var(--brand); }
button.danger { color: var(--bad); }
button.sm { padding: 3px 9px; font-size: 12px; }
button:disabled { opacity: .45; cursor: default; }
.err { color: var(--bad); min-height: 1.2em; margin: 8px 0 0; }
.ok { color: var(--ok); }
.cap { color: var(--muted); font-size: 12px; }
.row { display: flex; gap: 8px; align-items: end; flex-wrap: wrap; }
.row > * { flex: 0 0 auto; }
.row label { margin: 0; }
.row.mid { align-items: center; }
code { font-family: ui-monospace, monospace; background: var(--bg); padding: 1px 5px; border-radius: 4px; font-size: 12px; }
.secret { background: var(--bg); border: 1px dashed var(--brand); padding: 10px; border-radius: 6px; word-break: break-all; }

/* tables */
.scroll { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 7px 9px; border-bottom: 1px solid var(--line); vertical-align: middle; }
th { color: var(--muted); font-size: 12px; font-weight: 600; background: color-mix(in srgb, var(--bg) 60%, var(--card)); white-space: nowrap; }
td input, td select { margin: 0; padding: 4px 6px; }
.pager { display: flex; gap: 10px; align-items: center; justify-content: flex-end; padding-top: 10px; }
.tabs { display: flex; gap: 22px; border-bottom: 1px solid var(--line); margin-bottom: 12px; }
.tabs a { padding: 8px 0; color: var(--muted); text-decoration: none; cursor: pointer; border-bottom: 2px solid transparent; }
.tabs a.on { color: var(--brand-d); border-bottom-color: var(--brand); font-weight: 600; }
.badge { display: inline-block; padding: 1px 8px; border-radius: 10px; font-size: 12px; background: var(--bg); color: var(--muted); }
.badge.on { background: var(--brand); color: #fff; }
.badge.bad { background: var(--bad); color: #fff; }
.dot { display: inline-block; width: 9px; height: 9px; border-radius: 50%; background: #aab4bf; margin-right: 6px; }
.dot.on { background: var(--ok); }
.dot.bad { background: var(--bad); }

/* overview */
.stats { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.stat { border-radius: 8px; padding: 16px 20px; border-top: 4px solid var(--brand); background: var(--card); border: 1px solid var(--line); border-top-width: 4px; }
.stat.blue { border-top-color: #3b82f6; } .stat.red { border-top-color: var(--bad); }
.stat .nums { display: flex; gap: 28px; }
.stat .n { font-size: 34px; font-weight: 700; line-height: 1.1; }
.stat .l { font-size: 13px; color: var(--muted); }
.cols { display: grid; gap: 16px; grid-template-columns: 1fr 1fr; }
.quick { display: grid; grid-template-columns: repeat(auto-fit, minmax(100px, 1fr)); gap: 10px; }
.quick a { text-align: center; padding: 14px 6px; border: 1px solid var(--line); border-radius: 8px; text-decoration: none; color: var(--text); }
.quick a:hover { border-color: var(--brand); }
.quick b { display: block; font-size: 22px; color: var(--brand-d); }
.evt { display: flex; gap: 10px; padding: 7px 0; border-bottom: 1px solid var(--line); align-items: baseline; }
.evt .t { color: var(--muted); font-size: 12px; white-space: nowrap; }

/* monitor */
.mon { display: grid; grid-template-columns: 250px 1fr; gap: 16px; align-items: start; }
.tree { background: var(--card); border: 1px solid var(--line); border-radius: 8px; padding: 10px; max-height: calc(100vh - 110px); overflow: auto; position: sticky; top: 64px; }
.tree input { margin: 0 0 8px; }
.tree .g { padding: 7px 4px; cursor: pointer; display: flex; justify-content: space-between; font-weight: 600; }
.tree .d { padding: 6px 4px 6px 18px; cursor: pointer; border-radius: 5px; font-size: 13px; }
.tree .d:hover { background: var(--bg); }
.tree .d.sel { background: var(--brand); color: #fff; }
.tree .d .sn { display: block; font-size: 10px; opacity: .7; font-family: ui-monospace, monospace; }
.top2 { display: grid; grid-template-columns: minmax(300px, 1fr) minmax(320px, 1.1fr); gap: 16px; }
.info { display: grid; grid-template-columns: auto 1fr; font-size: 13px; }
.info div { padding: 6px 10px; border: 1px solid var(--line); margin: 0 -1px -1px 0; }
.info .k { color: var(--muted); background: color-mix(in srgb, var(--bg) 60%, var(--card)); }
.ring { --p: 0; width: 92px; height: 92px; border-radius: 50%; display: grid; place-items: center; font-weight: 700; flex: 0 0 auto;
  background: conic-gradient(var(--brand) calc(var(--p) * 1%), var(--line) 0); position: relative; }
.ring::before { content: ''; position: absolute; inset: 9px; border-radius: 50%; background: var(--card); }
.ring span { position: relative; font-size: 15px; }
.board { background: var(--screen); color: #fff; border-radius: 6px; padding: 10px 14px 14px; min-height: 260px; }
.board .bt { display: flex; justify-content: space-between; align-items: center; margin-bottom: 8px; }
.board .bt .brand { color: #19c37d; font-weight: 800; font-size: 20px; letter-spacing: 1px; }
.board .bt .title { font-size: 18px; }
.board .bt .clock { font: 13px ui-monospace, monospace; text-align: right; }
.board .cols2 { display: grid; grid-template-columns: 1fr 1fr; gap: 6px 22px; }
.board .it { display: flex; align-items: center; justify-content: space-between; gap: 8px; font-size: 13px; font-weight: 600; letter-spacing: .3px; }
.board .it .v { min-width: 92px; background: #e7eef5; color: #111; text-align: center; border-top: 3px solid #3c78b4; padding: 2px 8px; font-weight: 500; }
.board .it .v.alm { background: #ffd9d6; color: #a00; border-top-color: var(--bad); }
.chartbox { position: relative; height: 340px; }
.histgrid { display: grid; grid-template-columns: 230px 1fr; gap: 14px; }
.taglist { max-height: 220px; overflow: auto; border: 1px solid var(--line); border-radius: 5px; padding: 6px; }
.taglist label { margin: 0; padding: 3px 0; color: var(--text); font-size: 13px; }

@media (max-width: 900px) {
  #side { position: fixed; z-index: 20; inset: 0 auto 0 0; transform: translateX(-100%); transition: transform .2s; }
  #side.open { transform: none; }
  #burger { display: inline-block; }
  .cols, .top2, .mon, .histgrid { grid-template-columns: 1fr; }
  .tree { position: static; max-height: 260px; }
  main { padding: 10px; }
}