:root {
  --bg: #f6f5f2;
  --panel: #ffffff;
  --panel-2: #f0eee9;
  --text: #1c1b19;
  --muted: #6b675f;
  --line: #e2ded6;
  --accent: #b5652b;          /* copper */
  --accent-ink: #ffffff;
  --ok: #2f8f4e;
  --warn: #c98a12;
  --bad: #c4423a;
  --c1: #b5652b;              /* chart series */
  --c2: #3b6fb6;
  --c3: #6e9a3a;
  --c4: #8a5bb0;
  --radius: 10px;
  --shadow: 0 1px 2px rgba(0,0,0,.05), 0 2px 8px rgba(0,0,0,.04);
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #141412; --panel: #1d1c1a; --panel-2: #262522; --text: #ecebe7; --muted: #9c978d;
    --line: #34322e; --accent: #d98447; --ok: #4cb36b; --warn: #e0a83a; --bad: #e26a5f;
    --c1: #e08b4f; --c2: #6c9be0; --c3: #94c35f; --c4: #b48ad8;
    --shadow: none; color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #141412; --panel: #1d1c1a; --panel-2: #262522; --text: #ecebe7; --muted: #9c978d;
  --line: #34322e; --accent: #d98447; --ok: #4cb36b; --warn: #e0a83a; --bad: #e26a5f;
  --c1: #e08b4f; --c2: #6c9be0; --c3: #94c35f; --c4: #b48ad8;
  --shadow: none; color-scheme: dark;
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  background: var(--bg); color: var(--text);
  font: 14px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3 { margin: 0; font-weight: 600; letter-spacing: -.01em; }
h1 { font-size: 20px; } h2 { font-size: 16px; } h3 { font-size: 14px; }
.muted { color: var(--muted); }
.mono { font-family: ui-monospace, "Cascadia Mono", Consolas, monospace; font-size: 12.5px; }

header.top {
  position: sticky; top: 0; z-index: 5; background: var(--panel); border-bottom: 1px solid var(--line);
  display: flex; align-items: center; gap: 16px; padding: 10px 16px;
}
header.top .brand { display: flex; align-items: center; gap: 8px; font-weight: 650; color: var(--text); }
header.top .brand svg { color: var(--accent); }
header.top nav { display: flex; gap: 4px; margin-left: auto; }
header.top nav a { padding: 6px 10px; border-radius: 8px; color: var(--muted); }
header.top nav a.on { background: var(--panel-2); color: var(--text); }
header.top nav a:hover { text-decoration: none; color: var(--text); }

main { max-width: 1280px; margin: 0 auto; padding: 16px; }
.row { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
.spacer { flex: 1; }
.stack > * + * { margin-top: 16px; }

.panel { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); padding: 14px 16px; }
.panel h2 { margin-bottom: 10px; }

.grid { display: grid; gap: 12px; grid-template-columns: repeat(auto-fill, minmax(290px, 1fr)); }
.card { display: block; color: inherit; }
.card:hover { text-decoration: none; border-color: var(--accent); }
.card .big { font-size: 26px; font-weight: 650; font-variant-numeric: tabular-nums; }
.card .stats { display: flex; gap: 18px; margin-top: 6px; font-variant-numeric: tabular-nums; }
.card svg.spark { width: 100%; height: 44px; margin-top: 8px; display: block; }

.dot { width: 9px; height: 9px; border-radius: 50%; display: inline-block; background: var(--muted); flex: none; }
.dot.ok { background: var(--ok); } .dot.warn { background: var(--warn); } .dot.bad { background: var(--bad); }
.pill { display: inline-flex; align-items: center; gap: 6px; padding: 2px 9px; border-radius: 99px; background: var(--panel-2); font-size: 12px; }

.kpis { display: grid; gap: 10px; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); }
.kpi { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 10px 12px; }
.kpi .v { font-size: 20px; font-weight: 650; font-variant-numeric: tabular-nums; }
.kpi .l { color: var(--muted); font-size: 12px; }
.kpi .s { color: var(--muted); font-size: 11.5px; }

.seg { display: inline-flex; border: 1px solid var(--line); border-radius: 8px; overflow: hidden; }
.seg button { border: 0; border-radius: 0; background: transparent; }
.seg button + button { border-left: 1px solid var(--line); }
.seg button.on { background: var(--accent); color: var(--accent-ink); }

button, .btn {
  font: inherit; color: var(--text); background: var(--panel); border: 1px solid var(--line);
  border-radius: 8px; padding: 6px 12px; cursor: pointer; display: inline-flex; align-items: center; gap: 6px;
}
button:hover, .btn:hover { border-color: var(--accent); text-decoration: none; }
button.primary { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
input, select, textarea {
  font: inherit; color: var(--text); background: var(--bg); border: 1px solid var(--line);
  border-radius: 8px; padding: 6px 9px; min-width: 0;
}
input:focus, select:focus, textarea:focus { outline: 2px solid var(--accent); outline-offset: -1px; }
label.f { display: flex; flex-direction: column; gap: 3px; font-size: 12px; color: var(--muted); }
form.inline { display: grid; gap: 10px; grid-template-columns: repeat(auto-fill, minmax(170px, 1fr)); align-items: end; }

table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 7px 8px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--muted); font-weight: 500; font-size: 12px; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }
.tablewrap { overflow-x: auto; }

.chart { width: 100%; min-height: 240px; }
.chart-title { display: flex; align-items: baseline; gap: 10px; margin-bottom: 6px; }

.lvl-warn { color: var(--warn); } .lvl-error { color: var(--bad); }
.notice { padding: 10px 12px; border-radius: 8px; background: var(--panel-2); border-left: 3px solid var(--accent); }
.token { word-break: break-all; padding: 10px; background: var(--panel-2); border-radius: 8px; user-select: all; }
pre.cfg { margin: 0; padding: 10px; background: var(--panel-2); border-radius: 8px; overflow-x: auto; }
.empty { padding: 30px; text-align: center; color: var(--muted); }
.err { color: var(--bad); }

/* uPlot legend/axes follow the theme */
.u-legend { color: var(--text); font-size: 12px; }
.u-legend .u-marker { border-radius: 2px; }

@media (max-width: 640px) {
  header.top { gap: 8px; padding: 8px 12px; }
  header.top .brand span { display: none; }
  main { padding: 12px; }
  .card .big { font-size: 22px; }
}