/* PLS Mobility Wi-Fi — same brand roles as status.plsok.org (purple chrome, Alexandria, the shape band).
   Light is the base; dark is a selected set. Status colours only ever appear with an icon + label.
   Chart series: users = categorical slot 1 (blue), data = slot 3 (aqua) — validated as a pair in both modes; light aqua is <3:1, so the table and tooltips carry every value. */
:root {
  color-scheme: light dark;
  --page: #f9f9f7; --surface: #fcfcfb; --ink: #0b0b0b; --ink-2: #52514e; --ink-3: #898781; --hair: #e1e0d9;
  --ring: rgba(11, 11, 11, .10); --brand: #67338e;
  --good: #17864a; --critical: #ea0029; --warning: #b45309;
  --s-users: #2a78d6; --s-data: #1baf7a; --grid: #e9e8e2;
  --radius: 10px;
  font-family: Alexandria, system-ui, -apple-system, "Segoe UI", Verdana, sans-serif; font-size: 15px; line-height: 1.45;
}
@media (prefers-color-scheme: dark) {
  :root {
    --page: #0d0d0d; --surface: #1a1a19; --ink: #ffffff; --ink-2: #c3c2b7; --ink-3: #898781; --hair: #2c2c2a;
    --ring: rgba(255, 255, 255, .10); --brand: #b98fd8;
    --good: #2fb06a; --critical: #ff4d6a; --warning: #f5a524;
    --s-users: #3987e5; --s-data: #199e70; --grid: #262624;
  }
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
body { margin: 0; background: var(--page); color: var(--ink); padding-inline: 16px; padding-block: 0 48px; }
.wrap { max-width: 1040px; margin: 0 auto; }
h1, h2 { margin: 0; font-weight: 650; letter-spacing: -0.01em; color: var(--brand); }
h1 { font-size: 30px; }
h2 { font-size: 18px; margin-block: 32px 10px; }
p { margin: 0; }
a { color: inherit; text-underline-offset: 2px; }
button, select { font: inherit; color: inherit; }
.muted { color: var(--ink-2); } .small { font-size: 13px; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.num, td.r, .tile b { font-variant-numeric: tabular-nums; }

.brandband { height: 10px; margin-inline: -16px; background: url("/brandband.svg") repeat-x left center; background-size: auto 10px; }
.site { padding-block: 28px 4px; }
.brandmark { display: inline-block; margin-bottom: 14px; }
.brandmark img { height: 34px; width: auto; display: block; }
.logo-dark { display: none !important; }
@media (prefers-color-scheme: dark) { .logo-light { display: none !important; } .logo-dark { display: block !important; } }
.updated { color: var(--ink-2); font-size: 13px; margin-top: 6px; }
.summary { color: var(--ink-2); margin-bottom: 12px; }

/* location cards */
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 10px; }
.card { background: var(--surface); border: 1px solid var(--hair); border-radius: var(--radius); padding: 14px 16px; display: grid; gap: 8px; }
.card h3 { margin: 0; font-size: 15px; font-weight: 600; }
.state { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; font-weight: 600; }
.state svg { width: 16px; height: 16px; flex: none; }
.state.online { color: var(--good); } .state.offline { color: var(--critical); } .state.unknown { color: var(--ink-3); }
.state .dur { color: var(--ink-2); font-weight: 500; }
.kv { display: grid; grid-template-columns: auto 1fr; gap: 2px 10px; font-size: 13px; margin: 0; }
.kv dt { color: var(--ink-2); } .kv dd { margin: 0; text-align: right; font-variant-numeric: tabular-nums; }
.flag { color: var(--warning); font-weight: 600; }
.card.is-offline { border-color: color-mix(in srgb, var(--critical) 35%, var(--hair)); }

/* controls: one row above the charts */
.controls { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 14px; margin-bottom: 14px; }
.seg { display: inline-flex; border: 1px solid var(--hair); border-radius: 8px; overflow: hidden; background: var(--surface); }
.seg button { border: 0; background: none; padding: 6px 14px; cursor: pointer; color: var(--ink-2); }
.seg button + button { border-left: 1px solid var(--hair); }
.seg button[aria-checked="true"] { background: var(--brand); color: #fff; }
.nav { display: inline-flex; align-items: center; gap: 6px; }
.period { min-width: 15ch; text-align: center; font-weight: 600; }
.ghost { border: 1px solid var(--hair); background: var(--surface); border-radius: 8px; padding: 4px 10px; cursor: pointer; }
.ghost:disabled { opacity: .4; cursor: default; }
.small-btn { font-size: 13px; }
.loc { display: inline-flex; align-items: center; gap: 6px; color: var(--ink-2); font-size: 13px; }
.loc select { border: 1px solid var(--hair); background: var(--surface); border-radius: 8px; padding: 5px 8px; color: var(--ink); }
.csv { position: relative; margin-left: auto; }
.csv summary { list-style: none; cursor: pointer; border: 1px solid var(--hair); background: var(--surface); border-radius: 8px; padding: 5px 12px; font-size: 14px; }
.csv summary::-webkit-details-marker { display: none; }
.csv-menu { position: absolute; right: 0; top: calc(100% + 6px); z-index: 5; background: var(--surface); border: 1px solid var(--hair);
            border-radius: 10px; box-shadow: 0 8px 24px rgba(0,0,0,.12); padding: 6px; display: grid; min-width: 260px; }
.csv-menu a { padding: 8px 10px; border-radius: 6px; text-decoration: none; font-size: 14px; }
.csv-menu a:hover, .csv-menu a:focus-visible { background: var(--page); }
.csv-menu a span { display: block; color: var(--ink-2); font-size: 12px; }

/* headline tiles */
.tiles { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 10px; margin-bottom: 14px; }
.tile { background: var(--surface); border: 1px solid var(--hair); border-radius: var(--radius); padding: 12px 14px; }
.tile span { display: block; color: var(--ink-2); font-size: 13px; }
.tile b { display: block; font-size: 24px; font-weight: 650; margin-top: 2px; }

/* charts */
.chart { margin: 0 0 14px; background: var(--surface); border: 1px solid var(--hair); border-radius: var(--radius); padding: 12px 14px 6px; }
.chart figcaption { margin-bottom: 6px; } .chart-title { font-weight: 600; }
.plot { position: relative; width: 100%; }
.plot svg { display: block; width: 100%; height: 220px; overflow: visible; }
.plot .gridline { stroke: var(--grid); stroke-width: 1; }
.plot .axis { fill: var(--ink-3); font-size: 11px; font-family: inherit; }
.plot .bar-users { fill: var(--s-users); } .plot .bar-data { fill: var(--s-data); }
.plot .hit { fill: transparent; cursor: default; }
.plot .hit:hover + .bar, .plot g.col:hover .bar { opacity: .82; }
.plot .empty { fill: var(--ink-3); font-size: 13px; }
.tip { position: fixed; z-index: 20; pointer-events: none; background: var(--ink); color: var(--page); border-radius: 8px;
       padding: 7px 10px; font-size: 12.5px; line-height: 1.35; box-shadow: 0 6px 18px rgba(0,0,0,.18); max-width: 260px; }
.tip b { font-weight: 650; }

/* table */
.table-wrap { overflow-x: auto; background: var(--surface); border: 1px solid var(--hair); border-radius: var(--radius); }
table.grid { width: 100%; border-collapse: collapse; font-size: 14px; }
.grid th, .grid td { padding: 9px 12px; border-bottom: 1px solid var(--hair); text-align: left; white-space: nowrap; }
.grid th { color: var(--ink-2); font-weight: 600; font-size: 13px; }
.grid .r { text-align: right; }
.grid tbody tr:last-child td { border-bottom: 0; }
.grid tfoot td { font-weight: 650; border-top: 2px solid var(--hair); border-bottom: 0; }
.grid td.nodata { color: var(--ink-3); }

footer { margin-top: 36px; color: var(--ink-2); font-size: 13px; display: grid; gap: 6px; }

@media (max-width: 640px) {
  .csv { margin-left: 0; } .csv-menu { left: 0; right: auto; }
  .seg button { padding: 8px 12px; } .ghost { min-height: 36px; }
}
@media (max-width: 420px) {
  body { padding-inline: 12px; } .brandband { margin-inline: -12px; } h1 { font-size: 24px; }
}
@media (forced-colors: active) { .plot .bar { fill: CanvasText; } .seg button[aria-checked="true"] { outline: 2px solid; } }