:root {
  --bg: #f4f6f9; --panel: #ffffff; --panel-2: #f8fafc; --border: #dfe4ea;
  --text: #17202b; --muted: #637083; --accent: #4338ca; --accent-2: #3730a3;
  --accent-soft: #eef0ff; --ok: #15803d; --ok-soft: #e8f6ed; --warn: #b45309;
  --warn-soft: #fdf3e2; --bad: #b91c1c; --bad-soft: #fdecec; --info: #1d4ed8;
  --info-soft: #e9effd; --chart-1: #4f46e5; --chart-2: #c2410c; --grid: #e7ebf0;
  --shadow: 0 1px 2px rgba(16,24,40,.06), 0 1px 3px rgba(16,24,40,.08);
  --radius: 10px; --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0d1117; --panel: #151b23; --panel-2: #1b222c; --border: #2a3340;
    --text: #e6ebf1; --muted: #8b97a8; --accent: #818cf8; --accent-2: #a5b4fc;
    --accent-soft: #1a1d3a; --ok: #4ade80; --ok-soft: #12261a; --warn: #fbbf24;
    --warn-soft: #2a2110; --bad: #f87171; --bad-soft: #2c1414; --info: #7aa2ff;
    --info-soft: #141f36; --chart-1: #818cf8; --chart-2: #fb923c; --grid: #232c37;
    --shadow: 0 1px 2px rgba(0,0,0,.4); color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #0d1117; --panel: #151b23; --panel-2: #1b222c; --border: #2a3340;
  --text: #e6ebf1; --muted: #8b97a8; --accent: #818cf8; --accent-2: #a5b4fc;
  --accent-soft: #1a1d3a; --ok: #4ade80; --ok-soft: #12261a; --warn: #fbbf24;
  --warn-soft: #2a2110; --bad: #f87171; --bad-soft: #2c1414; --info: #7aa2ff;
  --info-soft: #141f36; --chart-1: #818cf8; --chart-2: #fb923c; --grid: #232c37;
  --shadow: 0 1px 2px rgba(0,0,0,.4); color-scheme: dark;
}

* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; }
body { background: var(--bg); color: var(--text);
  font: 14px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3 { margin: 0 0 .5rem; line-height: 1.2; }
h1 { font-size: 1.35rem; } h2 { font-size: 1.05rem; } h3 { font-size: .95rem; }
code, pre, .mono { font-family: var(--mono); font-size: 12.5px; }
pre { background: var(--panel-2); border: 1px solid var(--border); border-radius: 8px;
  padding: 12px; overflow: auto; max-height: 480px; margin: 0; }
.muted { color: var(--muted); }
.hidden { display: none !important; }
.nowrap { white-space: nowrap; }
.right { text-align: right; }

/* ---------- layout ---------- */
.shell { display: grid; grid-template-columns: 228px 1fr; min-height: 100vh; }
.sidebar { background: var(--panel); border-right: 1px solid var(--border); padding: 16px 12px;
  position: sticky; top: 0; height: 100vh; overflow-y: auto; }
.brand { display: flex; align-items: center; gap: 10px; padding: 4px 8px 18px; }
.brand svg { width: 30px; height: 30px; flex: none; }
.brand b { display: block; font-size: 15px; letter-spacing: .04em; }
.brand span { font-size: 11.5px; color: var(--muted); }
.nav a { display: flex; align-items: center; gap: 10px; padding: 8px 10px; border-radius: 8px;
  color: var(--text); font-weight: 500; margin-bottom: 2px; }
.nav a:hover { background: var(--panel-2); text-decoration: none; }
.nav a.active { background: var(--accent-soft); color: var(--accent); }
.nav svg { width: 18px; height: 18px; flex: none; }
.nav .sep { font-size: 11px; text-transform: uppercase; letter-spacing: .08em;
  color: var(--muted); padding: 14px 10px 6px; }
.main { min-width: 0; display: flex; flex-direction: column; }
.topbar { display: flex; align-items: center; gap: 12px; padding: 12px 24px;
  border-bottom: 1px solid var(--border); background: var(--panel); position: sticky; top: 0;
  z-index: 5; }
.topbar .grow { flex: 1; min-width: 0; }
.menu-btn { display: none; }
.content { padding: 22px 24px 48px; max-width: 1400px; width: 100%; }
.page-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 12px;
  flex-wrap: wrap; margin-bottom: 16px; }
.page-head p { margin: 2px 0 0; color: var(--muted); }

/* ---------- components ---------- */
.card { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 16px; min-width: 0; }
.card + .card { margin-top: 16px; }
.card-head { display: flex; align-items: center; justify-content: space-between; gap: 8px;
  margin-bottom: 12px; flex-wrap: wrap; }
.card-head h2 { margin: 0; }
.grid { display: grid; gap: 16px; }
.g2 { grid-template-columns: repeat(2, minmax(0,1fr)); }
.g3 { grid-template-columns: repeat(3, minmax(0,1fr)); }
.span2 { grid-column: span 2; }
.kpis { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 12px;
  margin-bottom: 16px; }
.kpi { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 14px 16px; box-shadow: var(--shadow); }
.kpi .label { color: var(--muted); font-size: 12.5px; }
.kpi .value { font-size: 26px; font-weight: 650; margin-top: 4px;
  font-variant-numeric: tabular-nums; }
.kpi .sub { font-size: 12px; color: var(--muted); margin-top: 2px; }
.meter { height: 6px; background: var(--grid); border-radius: 99px; overflow: hidden;
  margin-top: 8px; }
.meter > i { display: block; height: 100%; background: var(--ok); border-radius: 99px; }
.meter.warn > i { background: var(--warn); } .meter.bad > i { background: var(--bad); }

.btn { display: inline-flex; align-items: center; gap: 6px; border: 1px solid var(--border);
  background: var(--panel); color: var(--text); padding: 7px 12px; border-radius: 8px;
  font: inherit; font-weight: 550; cursor: pointer; white-space: nowrap; }
.btn:hover { background: var(--panel-2); }
.btn:disabled { opacity: .55; cursor: default; }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.primary:hover { background: var(--accent-2); }
.btn.danger { color: var(--bad); }
.btn.danger.solid { background: var(--bad); color: #fff; border-color: var(--bad); }
.btn.sm { padding: 4px 9px; font-size: 12.5px; }
.btn.ghost { border-color: transparent; background: transparent; }
.btn svg { width: 16px; height: 16px; }
.icon-btn { position: relative; border: 1px solid var(--border); background: var(--panel);
  color: var(--text); border-radius: 8px; width: 36px; height: 36px; display: inline-grid;
  place-items: center; cursor: pointer; }
.icon-btn svg { width: 18px; height: 18px; }
.icon-btn .count { position: absolute; top: -6px; right: -6px; background: var(--bad);
  color: #fff; font-size: 11px; font-weight: 700; border-radius: 99px; padding: 1px 6px;
  min-width: 18px; text-align: center; }

.pill { display: inline-flex; align-items: center; gap: 6px; padding: 2px 9px;
  border-radius: 99px; font-size: 12px; font-weight: 600; background: var(--panel-2);
  border: 1px solid var(--border); white-space: nowrap; }
.pill::before { content: ""; width: 7px; height: 7px; border-radius: 50%;
  background: currentColor; }
.pill.plain::before { display: none; }
.sev-critical, .st-bad { color: var(--bad); background: var(--bad-soft); border-color: transparent; }
.sev-high { color: var(--bad); background: var(--bad-soft); border-color: transparent; }
.sev-medium, .st-warn { color: var(--warn); background: var(--warn-soft); border-color: transparent; }
.sev-low, .sev-info { color: var(--info); background: var(--info-soft); border-color: transparent; }
.st-ok { color: var(--ok); background: var(--ok-soft); border-color: transparent; }

.table-wrap { overflow-x: auto; margin: 0 -16px; padding: 0 16px; }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--border);
  vertical-align: top; }
th { font-size: 12px; color: var(--muted); font-weight: 600; text-transform: uppercase;
  letter-spacing: .04em; white-space: nowrap; }
tbody tr:hover { background: var(--panel-2); }
tbody tr.clickable { cursor: pointer; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }
.empty { padding: 28px; text-align: center; color: var(--muted); }

.toolbar { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; margin-bottom: 12px; }
.toolbar .grow { flex: 1; }
input, select, textarea { font: inherit; color: var(--text); background: var(--panel);
  border: 1px solid var(--border); border-radius: 8px; padding: 7px 10px; min-width: 0; }
input:focus, select:focus, textarea:focus, .btn:focus-visible, a:focus-visible {
  outline: 2px solid var(--accent); outline-offset: 1px; }
label.field { display: block; margin-bottom: 12px; }
label.field > span { display: block; font-size: 12.5px; font-weight: 600; margin-bottom: 4px; }
label.field input, label.field select, label.field textarea { width: 100%; }
.form-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 0 12px; }
.check { display: flex; gap: 8px; align-items: center; margin-bottom: 12px; }
.error-text { color: var(--bad); font-size: 13px; margin: 6px 0; min-height: 1em; }

.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--border); margin-bottom: 14px;
  overflow-x: auto; }
.tabs button { background: none; border: 0; border-bottom: 2px solid transparent;
  padding: 8px 12px; font: inherit; font-weight: 600; color: var(--muted); cursor: pointer;
  white-space: nowrap; }
.tabs button.active { color: var(--accent); border-bottom-color: var(--accent); }

.banner { border-radius: var(--radius); padding: 12px 14px; margin-bottom: 16px;
  display: flex; gap: 10px; align-items: flex-start; border: 1px solid transparent; }
.banner.warn { background: var(--warn-soft); color: var(--warn); }
.banner.bad { background: var(--bad-soft); color: var(--bad); }
.banner.info { background: var(--info-soft); color: var(--info); }
.banner b { color: inherit; }
.banner .txt { color: var(--text); }

.list-row { display: flex; gap: 10px; align-items: flex-start; padding: 10px 0;
  border-bottom: 1px solid var(--border); }
.list-row:last-child { border-bottom: 0; }
.list-row .grow { flex: 1; min-width: 0; }
.list-row .title { font-weight: 600; overflow-wrap: anywhere; }
.list-row .meta { font-size: 12px; color: var(--muted); }
.list-row .msg { font-size: 13px; color: var(--muted); overflow-wrap: anywhere; }

.bars .bar-row { display: grid; grid-template-columns: minmax(90px, 160px) 1fr auto;
  gap: 10px; align-items: center; padding: 5px 0; font-size: 13px; }
.bars .bar { height: 10px; background: var(--grid); border-radius: 99px; overflow: hidden; }
.bars .bar i { display: block; height: 100%; background: var(--chart-1); border-radius: 99px; }
.flag { font-size: 16px; line-height: 1; margin-right: 4px; }

.chart { width: 100%; height: 180px; display: block; }
.chart text { fill: var(--muted); font-size: 10.5px; font-family: inherit; }
.chart .gridline { stroke: var(--grid); stroke-width: 1; }
.legend { display: flex; gap: 14px; font-size: 12px; color: var(--muted); margin-top: 6px; }
.legend i { display: inline-block; width: 10px; height: 3px; border-radius: 2px;
  margin-right: 5px; vertical-align: middle; }

/* ---------- modal / drawer / toast ---------- */
.overlay { position: fixed; inset: 0; background: rgba(8,12,18,.55); display: grid;
  place-items: center; z-index: 50; padding: 16px; }
.modal { background: var(--panel); border-radius: 14px; border: 1px solid var(--border);
  width: min(560px, 100%); max-height: calc(100vh - 32px); overflow: auto; padding: 20px;
  box-shadow: 0 20px 50px rgba(0,0,0,.35); }
.modal.wide { width: min(860px, 100%); }
.modal-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 12px;
  margin-bottom: 12px; }
.modal-foot { display: flex; justify-content: flex-end; gap: 8px; margin-top: 16px;
  flex-wrap: wrap; }
.toasts { position: fixed; right: 16px; bottom: 16px; display: grid; gap: 8px; z-index: 60;
  width: min(380px, calc(100vw - 32px)); }
.toast { background: var(--panel); border: 1px solid var(--border); border-left: 4px solid
  var(--info); border-radius: 10px; padding: 10px 12px; box-shadow: 0 8px 24px rgba(0,0,0,.2); }
.toast.sev-high, .toast.sev-critical, .toast.error { border-left-color: var(--bad); }
.toast.sev-medium { border-left-color: var(--warn); }
.toast.ok { border-left-color: var(--ok); }
.toast b { display: block; color: var(--text); }
.toast span { color: var(--muted); font-size: 13px; }

/* ---------- auth screens ---------- */
.auth { min-height: 100vh; display: grid; place-items: center; padding: 16px;
  background: radial-gradient(ellipse at top, var(--accent-soft), var(--bg) 60%); }
.auth .card { width: min(420px, 100%); padding: 28px; }
.auth .brand { justify-content: center; padding-bottom: 22px; }
.auth .brand svg { width: 42px; height: 42px; }
.auth .brand b { font-size: 19px; }
.qr { display: grid; place-items: center; background: #fff; border-radius: 10px; padding: 12px;
  width: fit-content; margin: 8px auto 12px; }
.qr svg, .qr img { display: block; width: 200px; height: 200px; }
.secret { font-family: var(--mono); background: var(--panel-2); border: 1px dashed var(--border);
  padding: 8px; border-radius: 8px; text-align: center; letter-spacing: .1em;
  overflow-wrap: anywhere; }
.codes { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; font-family: var(--mono);
  background: var(--panel-2); padding: 12px; border-radius: 8px; margin: 10px 0; }
.otp { font-size: 22px; letter-spacing: .4em; text-align: center; font-family: var(--mono); }

.live { display: inline-flex; align-items: center; gap: 6px; font-size: 12px; color: var(--muted); }
.live::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--muted); }
.live.on::before { background: var(--ok); box-shadow: 0 0 0 3px var(--ok-soft); }

@media (max-width: 1000px) {
  .g2, .g3 { grid-template-columns: 1fr; }
  .span2 { grid-column: auto; }
}
@media (max-width: 760px) {
  .shell { grid-template-columns: 1fr; }
  .sidebar { position: fixed; left: 0; top: 0; z-index: 40; width: 250px;
    transform: translateX(-100%); transition: transform .2s; box-shadow: var(--shadow); }
  .sidebar.open { transform: none; }
  .menu-btn { display: inline-grid; }
  .topbar { padding: 10px 16px; }
  .content { padding: 16px 16px 40px; }
  .hide-sm { display: none; }
  .bars .bar-row { grid-template-columns: 100px 1fr auto; }
}
.banner > b { flex: none; }
.toolbar input.grow, .toolbar .grow { flex: 1 1 180px; }
@media (max-width: 760px) { .banner { flex-direction: column; gap: 4px; } }

/* ---------- help & about ---------- */
.side-foot { margin-top: 18px; padding: 12px 10px 0; border-top: 1px solid var(--border);
  font-size: 12px; color: var(--muted); display: grid; gap: 2px; }
.auth-foot { text-align: center; font-size: 12px; color: var(--muted); margin: 18px 0 0; }
.help-layout { display: grid; grid-template-columns: 240px minmax(0, 1fr); gap: 16px; align-items: start; }
.help-toc { position: sticky; top: 76px; max-height: calc(100vh - 96px); overflow-y: auto; padding: 12px; }
.help-toc input { width: 100%; margin-bottom: 8px; }
.help-toc a { display: block; padding: 6px 8px; border-radius: 6px; color: var(--text); font-size: 13.5px; }
.help-toc a:hover { background: var(--panel-2); text-decoration: none; }
.help-toc a.active { background: var(--accent-soft); color: var(--accent); }
.help-body { max-width: 860px; padding: 20px 28px; line-height: 1.6; }
.help-body h1 { font-size: 1.5rem; margin-bottom: 8px; }
.help-body h2 { font-size: 1.2rem; margin: 30px 0 8px; padding-top: 14px; border-top: 1px solid var(--border);
  scroll-margin-top: 80px; }
.help-body section:first-of-type h2 { border-top: 0; }
.help-body h3 { margin: 20px 0 6px; scroll-margin-top: 80px; }
.help-body p, .help-body li { color: var(--text); }
.help-body ul, .help-body ol { padding-left: 22px; }
.help-body li { margin: 4px 0; }
.help-body code { background: var(--panel-2); border: 1px solid var(--border); border-radius: 4px; padding: 0 4px; }
.help-body pre { margin: 10px 0; }
.help-body table { margin: 8px 0 14px; }
.about { text-align: center; }
.about-logo svg { width: 64px; height: 64px; }
.about h2 { margin: 8px 0 4px; font-size: 1.3rem; }
.about .credit { font-weight: 650; color: var(--accent); font-size: 15px; margin: 16px 0 4px; }
@media (max-width: 900px) { .help-layout { grid-template-columns: 1fr; } .help-toc { position: static; max-height: none; }
  .help-body { padding: 16px; } }

/* ---------- Central: server tiles, pickers, misc ---------- */
.tiles { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 12px; }
.tile { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 14px; box-shadow: var(--shadow); color: var(--text); display: block; min-width: 0; }
.tile:hover { border-color: var(--accent); text-decoration: none; }
.tile.offline { opacity: .75; border-style: dashed; }
.tile-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 8px; }
.tile-head b { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; display: block; }
.tile .host { font-size: 12px; color: var(--muted); overflow: hidden; text-overflow: ellipsis;
  white-space: nowrap; }
.mini { display: grid; grid-template-columns: 38px 1fr 40px; gap: 8px; align-items: center;
  font-size: 12px; color: var(--muted); margin-top: 6px; }
.mini .meter { margin: 0; }
.mini .num { text-align: right; font-variant-numeric: tabular-nums; color: var(--text); }
.tile-foot { display: flex; gap: 10px; flex-wrap: wrap; font-size: 12px; color: var(--muted);
  margin-top: 10px; padding-top: 8px; border-top: 1px solid var(--border); }
.tile-foot b { color: var(--text); font-variant-numeric: tabular-nums; }
.st-off { color: var(--muted); background: var(--panel-2); }
.picker { max-height: 260px; overflow-y: auto; border: 1px solid var(--border); border-radius: 8px;
  padding: 6px 10px; background: var(--panel-2); }
.picker label { display: flex; gap: 8px; align-items: center; padding: 4px 0; }
.picker label span { color: var(--muted); font-size: 12px; }
.seg { display: inline-flex; border: 1px solid var(--border); border-radius: 8px; overflow: hidden; }
.seg button { border: 0; background: var(--panel); padding: 6px 12px; font: inherit; cursor: pointer;
  color: var(--text); }
.seg button + button { border-left: 1px solid var(--border); }
.seg button.active { background: var(--accent-soft); color: var(--accent); font-weight: 600; }
.joincode { font-family: var(--mono); font-size: 12.5px; background: var(--panel-2);
  border: 1px dashed var(--accent); border-radius: 8px; padding: 12px; overflow-wrap: anywhere;
  user-select: all; }
.progress { display: flex; height: 8px; border-radius: 99px; overflow: hidden; background: var(--grid);
  min-width: 90px; }
.progress i { display: block; height: 100%; }
.progress .ok { background: var(--ok); } .progress .err { background: var(--bad); }
.progress .wait { background: var(--warn); }
.kv { display: grid; grid-template-columns: max-content 1fr; gap: 6px 16px; }
.kv dt { color: var(--muted); } .kv dd { margin: 0; overflow-wrap: anywhere; }
.icon-btn.menu-btn { display: none; }
@media (max-width: 760px) { .icon-btn.menu-btn { display: inline-grid; } }
.grid > .card + .card { margin-top: 0; }
@media (max-width: 760px) { .chart { height: auto; } }