/* Colour tokens: the validated reference palette (light + dark selected). */
:root {
  color-scheme: light;
  --page: #f9f9f7;
  --surface-1: #fcfcfb;
  --text-primary: #0b0b0b;
  --text-secondary: #52514e;
  --text-muted: #898781;
  --grid: #e1e0d9;
  --axis: #c3c2b7;
  --border: rgba(11, 11, 11, 0.10);
  --series-1: #2a78d6;
  --series-2: #eb6834;
  --good: #0ca30c;
  --good-text: #006300;
  --warning: #fab219;
  --critical: #d03b3b;
  --accent: #2a78d6;
  --accent-ink: #ffffff;
  --wash: rgba(42, 120, 214, 0.08);
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --page: #0d0d0d;
    --surface-1: #1a1a19;
    --text-primary: #f0efec;
    --text-secondary: #c3c2b7;
    --text-muted: #898781;
    --grid: #2c2c2a;
    --axis: #383835;
    --border: rgba(255, 255, 255, 0.10);
    --series-1: #3987e5;
    --series-2: #d95926;
    --good-text: #0ca30c;
    --accent: #3987e5;
    --wash: rgba(57, 135, 229, 0.14);
  }
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --page: #0d0d0d;
  --surface-1: #1a1a19;
  --text-primary: #f0efec;
  --text-secondary: #c3c2b7;
  --text-muted: #898781;
  --grid: #2c2c2a;
  --axis: #383835;
  --border: rgba(255, 255, 255, 0.10);
  --series-1: #3987e5;
  --series-2: #d95926;
  --good-text: #0ca30c;
  --accent: #3987e5;
  --wash: rgba(57, 135, 229, 0.14);
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
body {
  margin: 0;
  background: var(--page);
  color: var(--text-primary);
  font: 14px/1.45 system-ui, -apple-system, "Segoe UI", sans-serif;
}
h1 { font-size: 22px; margin: 0 0 4px; }
h2 { font-size: 15px; margin: 0 0 12px; font-weight: 600; }
h3 { font-size: 13px; margin: 16px 0 6px; font-weight: 600; color: var(--text-secondary); }
.muted { color: var(--text-secondary); }
.small { font-size: 12px; }
code { font-size: 12px; }
button {
  font: inherit; border-radius: 8px; border: 1px solid transparent; cursor: pointer;
  background: var(--accent); color: var(--accent-ink); padding: 8px 14px;
}
button:disabled { opacity: 0.45; cursor: not-allowed; }
button.ghost { background: transparent; color: var(--text-primary); border-color: var(--border); padding: 6px 10px; }
button.small { padding: 4px 10px; font-size: 12px; }
button.secondary { background: transparent; color: var(--accent); border-color: var(--accent); }
input, select {
  font: inherit; color: var(--text-primary); background: var(--surface-1);
  border: 1px solid var(--border); border-radius: 8px; padding: 7px 10px;
}
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.topbar {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 12px 16px; border-bottom: 1px solid var(--border); background: var(--surface-1);
  position: sticky; top: 0; z-index: 5;
}
.brand { display: flex; align-items: center; gap: 8px; font-size: 15px; }
.brand svg { fill: var(--accent); stroke: var(--accent); }
.topbar-right { display: flex; align-items: center; gap: 8px; }
.conn { font-size: 12px; color: var(--text-secondary); display: inline-flex; align-items: center; gap: 6px; }
.conn::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--good); }
.conn.down::before { background: var(--critical); }

main { max-width: 1280px; margin: 0 auto; padding: 16px; }
.login { display: grid; place-items: center; min-height: calc(100vh - 60px); }
.login-card { width: min(380px, 100%); display: grid; gap: 12px; }
.login-card label { display: grid; gap: 4px; color: var(--text-secondary); font-size: 13px; }
.error { color: var(--critical); margin: 0; }
details summary { cursor: pointer; color: var(--text-secondary); font-size: 13px; }

.card {
  background: var(--surface-1); border: 1px solid var(--border); border-radius: 12px;
  padding: 16px; margin-bottom: 16px; min-width: 0;
}
.card-head { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; flex-wrap: wrap; margin-bottom: 12px; }
.card-head h2 { margin: 0; }
.grid3, .grid2 { display: grid; gap: 16px; }
.grid3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid3 > .card, .grid2 > .card { margin-bottom: 0; }
.grid3, .grid2 { margin-bottom: 16px; }
@media (max-width: 900px) { .grid3, .grid2 { grid-template-columns: minmax(0, 1fr); } }

.kpis { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; margin-bottom: 16px; }
.tile { background: var(--surface-1); border: 1px solid var(--border); border-radius: 12px; padding: 12px 14px; }
.tile .label { font-size: 12px; color: var(--text-secondary); }
.tile .value { font-size: 24px; font-weight: 600; margin-top: 2px; }
.tile .sub { font-size: 12px; color: var(--text-muted); }

.filters { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; margin-bottom: 12px; }
.seg { background: transparent; color: var(--text-primary); border-color: var(--border); padding: 4px 10px; font-size: 13px; }
.seg.active { background: var(--wash); border-color: var(--accent); font-weight: 600; }
.inline-filters { display: flex; gap: 8px; flex-wrap: wrap; }

.chart { width: 100%; height: 170px; position: relative; }
.chart.short { height: 120px; }
.chart svg, .layermap svg { display: block; width: 100%; overflow: visible; }
.chart .empty { height: 100%; display: grid; place-items: center; color: var(--text-muted); font-size: 13px; }
.gridline { stroke: var(--grid); stroke-width: 1; }
.baseline { stroke: var(--axis); stroke-width: 1; }
.tick { fill: var(--text-muted); font-size: 11px; font-variant-numeric: tabular-nums; }
.series-line { fill: none; stroke: var(--series-1); stroke-width: 2; stroke-linejoin: round; stroke-linecap: round; }
.crosshair { stroke: var(--text-muted); stroke-width: 1; }
.marker { fill: var(--series-1); stroke: var(--surface-1); stroke-width: 2; }
.bar { fill: var(--series-1); }
.bar.attn { fill: var(--series-2); }
.bar.offline { opacity: 0.35; }
.bar.banned { fill: var(--text-muted); opacity: 0.5; }
.bar:hover, .bar:focus { stroke: var(--text-primary); stroke-width: 1.5; outline: none; }
.refline { stroke: var(--text-secondary); stroke-width: 1; stroke-dasharray: 4 3; }
.reflabel { fill: var(--text-secondary); font-size: 11px; }
.rowlabel { fill: var(--text-secondary); font-size: 11px; }

.legend { display: flex; gap: 14px; flex-wrap: wrap; font-size: 12px; color: var(--text-secondary); margin: 4px 0 8px; }
.legend .key { display: inline-block; width: 12px; height: 10px; border-radius: 2px; margin-right: 6px; vertical-align: -1px; }

.tooltip {
  position: fixed; z-index: 20; pointer-events: none; background: var(--surface-1); color: var(--text-primary);
  border: 1px solid var(--border); border-radius: 8px; padding: 8px 10px; font-size: 12px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12); max-width: 260px;
}
.tooltip .v { font-size: 15px; font-weight: 600; }
.tooltip .k { color: var(--text-secondary); }

.table-wrap { overflow-x: auto; }
table { border-collapse: collapse; width: 100%; font-size: 13px; }
th { text-align: left; font-weight: 600; color: var(--text-secondary); font-size: 12px; padding: 6px 8px; border-bottom: 1px solid var(--axis); white-space: nowrap; }
td { padding: 7px 8px; border-bottom: 1px solid var(--grid); vertical-align: top; }
.num { text-align: right; font-variant-numeric: tabular-nums; }
.status { display: inline-flex; align-items: center; gap: 5px; white-space: nowrap; }
.status .dot { width: 8px; height: 8px; border-radius: 50%; display: inline-block; }
.status.online .dot { background: var(--good); }
.status.offline .dot { background: var(--text-muted); }
.status.banned .dot { background: var(--critical); }
.status.loading .dot { background: var(--warning); }
.status.failed .dot { background: var(--critical); }
.pill { display: inline-block; font-size: 11px; padding: 1px 7px; border-radius: 999px; border: 1px solid var(--border); color: var(--text-secondary); margin: 1px 2px 1px 0; }
.progress { height: 6px; border-radius: 3px; background: var(--grid); overflow: hidden; margin-top: 4px; width: 140px; }
.progress > span { display: block; height: 100%; background: var(--series-1); border-radius: 3px; }

.summary { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 8px 16px; margin-bottom: 12px; }
.summary div { font-size: 13px; color: var(--text-secondary); }
.summary b { display: block; font-size: 18px; color: var(--text-primary); font-weight: 600; }
.list { margin: 0; padding-left: 18px; font-size: 13px; }
.kv { display: grid; grid-template-columns: 1fr auto; gap: 6px 12px; font-size: 13px; }
.kv .num { color: var(--text-primary); }

.invite-form { display: flex; flex-wrap: wrap; gap: 10px 12px; align-items: end; margin-bottom: 12px; }
.invite-form label { display: grid; gap: 4px; font-size: 12px; color: var(--text-secondary); }
.invite-form input[type=number] { width: 120px; }
.invite-form .check { display: flex; align-items: center; gap: 6px; font-size: 13px; }
.copy-row { display: flex; align-items: center; gap: 8px; margin: 0 0 12px; padding: 8px 8px 8px 12px;
  border: 1px solid var(--accent); background: var(--wash); border-radius: 8px; }
.copy-row code { flex: 1; min-width: 0; overflow-wrap: anywhere; user-select: all; }