:root {
  --bg: #f6f7f9;
  --card: #ffffff;
  --fg: #1c2128;
  --muted: #6a737d;
  --line: #e1e4e8;
  --accent: #1f6feb;
  --ok: #1a7f37;
  --bad: #cf222e;
  --warn-bg: #fff8c5;
  --warn-fg: #6c5300;
  --grid: rgba(0, 0, 0, 0.06);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  font-size: 14px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0d1117;
    --card: #161b22;
    --fg: #e6edf3;
    --muted: #8b949e;
    --line: #30363d;
    --accent: #4493f8;
    --ok: #3fb950;
    --bad: #f85149;
    --warn-bg: #3b2e00;
    --warn-fg: #f2cc60;
    --grid: rgba(255, 255, 255, 0.07);
    color-scheme: dark;
  }
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--fg); }
[hidden] { display: none !important; }
button, select, input { font: inherit; color: inherit; }
button {
  background: var(--accent); color: #fff; border: 0; border-radius: 6px;
  padding: 8px 14px; cursor: pointer;
}
button.link { background: none; color: var(--accent); padding: 4px 6px; }
select, input {
  background: var(--card); border: 1px solid var(--line); border-radius: 6px; padding: 6px 8px;
}
.muted { color: var(--muted); }
.error { color: var(--bad); min-height: 1.2em; margin: 8px 0; }
.ok { color: var(--ok); }
.bad { color: var(--bad); }

.auth { display: flex; min-height: 100vh; align-items: center; justify-content: center; padding: 16px; }
.auth-card { width: 100%; max-width: 360px; }
.auth-card h1 { margin: 0 0 16px; font-size: 20px; }
.auth-card label { display: block; margin: 10px 0 4px; color: var(--muted); }
.auth-card input { width: 100%; }
.auth-card button { width: 100%; margin-top: 8px; }
.qr { background: #fff; padding: 8px; border-radius: 6px; width: 200px; margin: 8px auto; }
.qr svg { display: block; width: 100%; height: auto; }
.secret { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; word-break: break-all; font-size: 12px; }

.top {
  display: flex; flex-wrap: wrap; align-items: center; gap: 8px 16px; padding: 10px 16px;
  background: var(--card); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 5;
}
.brand { font-weight: 600; }
.tabs { display: flex; flex-wrap: wrap; gap: 2px; flex: 1; }
.tabs a {
  padding: 6px 10px; border-radius: 6px; color: var(--muted); text-decoration: none;
}
.tabs a.active { background: var(--bg); color: var(--fg); font-weight: 600; }
.controls { display: flex; align-items: center; gap: 10px; }
.warn { background: var(--warn-bg); color: var(--warn-fg); padding: 8px 16px; font-size: 13px; }

main { padding: 16px; max-width: 1400px; margin: 0 auto; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 8px; padding: 14px; }
.grid { display: grid; gap: 12px; grid-template-columns: repeat(auto-fill, minmax(min(100%, 520px), 1fr)); margin-bottom: 12px; }
.kpis { display: grid; gap: 12px; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); margin-bottom: 12px; }
.kpi .v { font-size: 22px; font-weight: 600; margin-top: 4px; }
.kpi .k { color: var(--muted); font-size: 12px; }
h2 { font-size: 14px; margin: 0 0 10px; font-weight: 600; }
.chart { width: 100%; min-height: 220px; }
.empty { color: var(--muted); padding: 40px 0; text-align: center; }

.table-wrap { overflow-x: auto; }
table { border-collapse: collapse; width: 100%; font-size: 13px; }
th, td { text-align: left; padding: 6px 8px; border-bottom: 1px solid var(--line); white-space: nowrap; }
th { color: var(--muted); font-weight: 500; position: sticky; top: 0; background: var(--card); cursor: pointer; user-select: none; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }
tr.click { cursor: pointer; }
tr.click:hover td { background: var(--bg); }
td.wrap { white-space: normal; max-width: 420px; word-break: break-word; }

.u-legend { font-size: 12px; }
.u-legend .u-marker { border-radius: 2px; }

@media (max-width: 640px) {
  main { padding: 10px; }
  .controls { width: 100%; justify-content: space-between; }
}