:root {
  --series-1: #2a78d6; /* chart bars (single series) */
  --bg: #ffffff;
  --fg: #1d2330;
  --muted: #5d6675;
  --line: #e3e6eb;
  --ok: #1f9d55;
  --warn: #d98e04;
  --err: #d64545;
  --accent: #0b6bcb;
  --shadow: 0 2px 12px rgba(20, 30, 50, 0.15);
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1b1f27;
    --fg: #e8ebf0;
    --muted: #9aa3b2;
    --line: #2e3440;
    --shadow: 0 2px 12px rgba(0, 0, 0, 0.5);
    --series-1: #3987e5;
  }
}

* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; font: 14px/1.4 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; color: var(--fg); background: var(--bg); }
#map { position: absolute; inset: 0; }

#panel {
  position: absolute; top: 12px; left: 12px; width: 300px; max-height: calc(100% - 24px);
  overflow: auto; background: var(--bg); border-radius: 10px; box-shadow: var(--shadow); padding: 14px 16px;
}
#panel header { position: relative; }
h1 { margin: 0; font-size: 20px; letter-spacing: 0.2px; }
h2 { margin: 16px 0 6px; font-size: 12px; text-transform: uppercase; letter-spacing: 0.6px; color: var(--muted); }
.tagline { margin: 2px 0 0; color: var(--muted); }
.conn { position: absolute; top: 2px; right: 0; font-size: 11px; color: var(--muted); }
.conn.live::before { content: "● "; color: var(--ok); }
.conn.down::before { content: "● "; color: var(--err); }

ul { list-style: none; margin: 0; padding: 0; }
.layer { padding: 8px 0; border-bottom: 1px solid var(--line); }
.layer:last-child { border-bottom: 0; }
.layer label { display: flex; align-items: center; gap: 8px; cursor: pointer; }
.layer .name { flex: 1; font-weight: 600; }
.layer .count { color: var(--muted); font-variant-numeric: tabular-nums; }
.swatch { width: 12px; height: 12px; border-radius: 50%; border: 2px solid #fff; box-shadow: 0 0 0 1px rgba(0,0,0,0.25); }
.meta { margin: 2px 0 0 24px; font-size: 12px; color: var(--muted); display: flex; align-items: center; gap: 6px; }
.dot { width: 7px; height: 7px; border-radius: 50%; background: var(--muted); }
.dot.ok { background: var(--ok); }
.dot.degraded { background: var(--warn); }
.dot.error { background: var(--err); }
.legend { display: flex; flex-wrap: wrap; gap: 2px 10px; margin: 4px 0 0 24px; font-size: 11px; color: var(--muted); }
.legend-item { display: inline-flex; align-items: center; gap: 4px; }
.chip { width: 8px; height: 8px; border-radius: 2px; display: inline-block; }
.badge { font-size: 10px; padding: 1px 6px; border-radius: 8px; background: var(--warn); color: #fff; }

footer { font-size: 12px; color: var(--muted); }
footer a { color: var(--accent); }
footer li { margin: 2px 0; }
.fine { margin-top: 10px; font-size: 11px; }

/* Popups */
.maplibregl-popup-content { background: var(--bg); color: var(--fg); padding: 12px; border-radius: 8px; box-shadow: var(--shadow); }
.maplibregl-popup-tip { border-top-color: var(--bg) !important; border-bottom-color: var(--bg) !important; }
.popup h3 { margin: 0 0 2px; font-size: 15px; }
.popup .sub { margin: 0 0 8px; color: var(--muted); font-size: 12px; }
.popup .img-wrap { width: 320px; max-width: 70vw; aspect-ratio: 4 / 3; background: var(--line); border-radius: 6px; overflow: hidden; display: grid; place-items: center; }
.popup img { width: 100%; height: 100%; object-fit: cover; display: block; }
.popup .img-msg { color: var(--muted); font-size: 12px; padding: 8px; text-align: center; }
.popup .row { display: flex; justify-content: space-between; align-items: center; margin-top: 6px; font-size: 12px; color: var(--muted); gap: 8px; }
.popup button { font: inherit; font-size: 12px; padding: 3px 10px; border-radius: 6px; border: 1px solid var(--line); background: var(--bg); color: var(--fg); cursor: pointer; }
.popup .credit { font-size: 11px; }
.popup .credit a { color: var(--accent); }

.popup .alert { display: inline-block; color: #fff; font-size: 11px; font-weight: 600; padding: 1px 7px; border-radius: 8px; }
.popup .warn { font-size: 11px; margin-top: 6px; }
.popup a.ext { display: inline-block; font-size: 12px; color: var(--accent); margin: 2px 0 4px; }
.popup .kv { display: grid; grid-template-columns: auto 1fr; gap: 3px 12px; margin: 6px 0 8px; font-size: 13px; }
.popup .kv dt { color: var(--muted); }
.popup .kv dd { margin: 0; font-variant-numeric: tabular-nums; }

/* Analytics */
.analytics-toggle {
  margin-top: 10px; font: inherit; font-size: 13px; font-weight: 600; padding: 5px 12px; border-radius: 6px;
  border: 1px solid var(--line); background: var(--bg); color: var(--fg); cursor: pointer;
}
.analytics-toggle[aria-expanded="true"] { background: var(--fg); color: var(--bg); }
#analytics {
  position: absolute; top: 12px; right: 12px; bottom: 12px; width: 380px; overflow: auto;
  background: var(--bg); border-radius: 10px; box-shadow: var(--shadow); padding: 14px 16px; z-index: 2;
}
#analytics[hidden] { display: none; }
#analytics header { display: flex; justify-content: space-between; align-items: center; }
#analytics h2 { margin: 0; font-size: 18px; text-transform: none; letter-spacing: 0; color: var(--fg); }
#analytics .close { font-size: 22px; line-height: 1; border: 0; background: none; color: var(--muted); cursor: pointer; padding: 2px 6px; }
#analytics .stamp { margin: 2px 0 6px; font-size: 12px; color: var(--muted); }
.card { border-top: 1px solid var(--line); padding: 12px 0; }
.card h3 { margin: 0; font-size: 14px; }
.card .desc, .card .note { margin: 2px 0 8px; font-size: 12px; color: var(--muted); }
.card .note { margin: 4px 0 0; }
.card .empty, #analytics .empty { color: var(--muted); font-size: 13px; }
.card .actions { display: flex; gap: 6px; margin-top: 8px; }
.card .actions button { font: inherit; font-size: 11px; padding: 2px 8px; border-radius: 5px; border: 1px solid var(--line); background: var(--bg); color: var(--muted); cursor: pointer; }
.viz svg { width: 100%; height: auto; display: block; }
.viz .mark { fill: var(--series-1); }
.viz .grid { stroke: var(--line); stroke-width: 1; }
.viz .axis { stroke: var(--muted); stroke-width: 1; opacity: 0.6; }
.viz .tick { fill: var(--muted); font-size: 10px; }
.viz .hit { fill: transparent; }
.viz .hit:hover { fill: var(--fg); fill-opacity: 0.06; }
.bars { display: grid; gap: 4px; }
.bar-row { display: grid; grid-template-columns: 11.5em 1fr 3.2em; align-items: center; gap: 8px; font-size: 12px; padding: 1px 0; border-radius: 4px; }
.bar-row:hover { background: color-mix(in srgb, var(--fg) 6%, transparent); }
.bar-label { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; display: flex; align-items: center; gap: 5px; }
.bar-track { height: 10px; }
.bar-fill { display: block; height: 100%; background: var(--series-1); border-radius: 0 4px 4px 0; }
.bar-fill.nonzero { min-width: 2px; } /* a real but tiny value stays visible; zero draws nothing */
.bar-value { text-align: right; font-variant-numeric: tabular-nums; }
table.data { width: 100%; border-collapse: collapse; font-size: 12px; }
table.data th { text-align: left; color: var(--muted); font-weight: 600; border-bottom: 1px solid var(--line); padding: 3px 4px; }
table.data td { border-bottom: 1px solid var(--line); padding: 3px 4px; font-variant-numeric: tabular-nums; vertical-align: top; }
table.health td:last-child { color: var(--muted); }
.meter { display: inline-block; width: 40px; height: 6px; background: var(--line); border-radius: 3px; vertical-align: middle; overflow: hidden; }
.meter-fill { display: block; height: 100%; background: var(--series-1); }
#viz-tip {
  position: fixed; z-index: 10; pointer-events: none; max-width: 260px; padding: 5px 8px; border-radius: 6px;
  font-size: 12px; background: var(--fg); color: var(--bg); box-shadow: var(--shadow);
}

/* Phones: panel becomes a bottom sheet */
@media (max-width: 640px) {
  #panel { top: auto; bottom: 0; left: 0; right: 0; width: auto; max-height: 45%; border-radius: 12px 12px 0 0; padding: 12px 16px; }
  .maplibregl-ctrl-bottom-right { bottom: 45%; }
  #analytics { top: 0; right: 0; bottom: 0; left: 0; width: auto; border-radius: 0; z-index: 5; }
}