:root {
  --bg: #f5f6fa;
  --surface: #ffffff;
  --surface-2: #f0f2f7;
  --text: #161a26;
  --muted: #5b6276;
  --border: #e1e4ec;
  --accent: #4f46e5;
  --accent-soft: #e0e7ff;
  --accent-2: #a5b4fc;
  --good: #0f8a5f;
  --bad: #c2410c;
  --bar: #eef0ff;
  --shadow: 0 1px 2px rgba(16, 24, 40, 0.06);
  --font: 'Segoe UI', system-ui, -apple-system, Roboto, sans-serif;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0e1018;
    --surface: #161a26;
    --surface-2: #1d2231;
    --text: #e8eaf2;
    --muted: #98a0b8;
    --border: #2a3042;
    --accent: #818cf8;
    --accent-soft: #262b4d;
    --accent-2: #4f46e5;
    --good: #34d399;
    --bad: #fb923c;
    --bar: #22274a;
    --shadow: none;
    color-scheme: dark;
  }
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body { background: var(--bg); color: var(--text); font: 14px/1.45 var(--font); -webkit-font-smoothing: antialiased; }
button, input, select { font: inherit; color: inherit; }
a { color: var(--accent); }
.muted { color: var(--muted); }
.small { font-size: 12px; }
.boot { padding: 40vh 0; text-align: center; color: var(--muted); }

/* sign-in */
.login { min-height: 100vh; display: grid; place-items: center; padding: 16px; }
.login form { width: 100%; max-width: 380px; background: var(--surface); border: 1px solid var(--border); border-radius: 16px; padding: 28px; box-shadow: var(--shadow); display: grid; gap: 12px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 18px; }
.brand svg { flex: none; }
label { display: grid; gap: 4px; font-size: 13px; color: var(--muted); }
input[type=email], input[type=password], input[type=text], input[type=date], select {
  border: 1px solid var(--border); background: var(--surface); border-radius: 9px; padding: 8px 10px; min-width: 0;
}
input:focus-visible, select:focus-visible, button:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }
.code-input { font-size: 26px; letter-spacing: 10px; text-align: center; }
.btn { border: 1px solid var(--border); background: var(--surface); border-radius: 9px; padding: 8px 14px; cursor: pointer; white-space: nowrap; }
.btn:hover:not(:disabled) { border-color: var(--accent); }
.btn:disabled { opacity: 0.55; cursor: default; }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; font-weight: 600; }
.btn.link { border: 0; background: none; color: var(--accent); padding: 4px; }
.err { color: var(--bad); font-size: 13px; min-height: 1em; }

/* layout */
.top { position: sticky; top: 0; z-index: 5; background: color-mix(in srgb, var(--bg) 88%, transparent); backdrop-filter: blur(8px); border-bottom: 1px solid var(--border); }
.top-in, main { max-width: 1180px; margin: 0 auto; padding: 0 16px; }
.top-in { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; padding-top: 10px; padding-bottom: 10px; }
.grow { flex: 1; }
.live { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; color: var(--muted); }
.live i { width: 8px; height: 8px; border-radius: 50%; background: var(--good); box-shadow: 0 0 0 0 var(--good); animation: pulse 2s infinite; }
@keyframes pulse { 0% { box-shadow: 0 0 0 0 color-mix(in srgb, var(--good) 60%, transparent); } 70% { box-shadow: 0 0 0 7px transparent; } 100% { box-shadow: 0 0 0 0 transparent; } }
.seg { display: inline-flex; border: 1px solid var(--border); border-radius: 9px; overflow: hidden; background: var(--surface); }
.seg button { border: 0; background: none; padding: 7px 11px; cursor: pointer; }
.seg button + button { border-left: 1px solid var(--border); }
.seg button.on { background: var(--accent); color: #fff; }
.custom { display: inline-flex; gap: 6px; align-items: center; }
main { padding-top: 18px; padding-bottom: 48px; display: grid; gap: 16px; }
.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chip { display: inline-flex; align-items: center; gap: 6px; background: var(--accent-soft); color: var(--accent); border-radius: 999px; padding: 3px 4px 3px 10px; font-size: 13px; }
.chip button { border: 0; background: none; color: inherit; cursor: pointer; padding: 0 6px; font-size: 15px; line-height: 1; }

.card { background: var(--surface); border: 1px solid var(--border); border-radius: 14px; box-shadow: var(--shadow); }
.kpis { display: grid; grid-template-columns: repeat(5, 1fr); }
.kpi { padding: 14px 16px; border-right: 1px solid var(--border); }
.kpi:last-child { border-right: 0; }
.kpi .label { font-size: 12px; text-transform: uppercase; letter-spacing: 0.04em; color: var(--muted); }
.kpi .value { font-size: 26px; font-weight: 700; margin-top: 2px; font-variant-numeric: tabular-nums; }
.delta { font-size: 12px; font-weight: 600; }
.delta.up { color: var(--good); }
.delta.down { color: var(--bad); }
.chart { padding: 14px 16px 8px; }
.chart-head { display: flex; gap: 14px; align-items: center; font-size: 13px; color: var(--muted); margin-bottom: 6px; }
.swatch { display: inline-block; width: 10px; height: 10px; border-radius: 3px; margin-right: 5px; vertical-align: -1px; }
.chart svg { display: block; width: 100%; height: 240px; overflow: visible; }
.chart .grid line { stroke: var(--border); }
.chart .axis text { fill: var(--muted); font-size: 11px; }
.tip { position: fixed; pointer-events: none; background: var(--text); color: var(--bg); border-radius: 8px; padding: 6px 9px; font-size: 12px; z-index: 20; white-space: nowrap; }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.grid3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 16px; }
.list { padding: 12px 14px; min-width: 0; }
.list h3 { margin: 0 0 8px; font-size: 14px; display: flex; justify-content: space-between; }
.list h3 span { font-weight: 400; color: var(--muted); font-size: 12px; }
.row { position: relative; display: flex; align-items: center; gap: 8px; padding: 5px 8px; border-radius: 7px; cursor: pointer; }
.row:hover { background: var(--surface-2); }
.row .fill { position: absolute; inset: 0 auto 0 0; background: var(--bar); border-radius: 7px; z-index: 0; }
.row > *:not(.fill) { position: relative; z-index: 1; }
.row .k { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.row .v { font-variant-numeric: tabular-nums; font-weight: 600; }
.row .v2 { font-variant-numeric: tabular-nums; color: var(--muted); width: 56px; text-align: right; font-size: 12px; }
.row.static { cursor: default; }
.empty { color: var(--muted); padding: 10px 8px; font-size: 13px; }
.sites table { width: 100%; border-collapse: collapse; }
.sites th, .sites td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--border); }
.sites th { font-size: 12px; color: var(--muted); font-weight: 600; }
.sites td.num { text-align: right; font-variant-numeric: tabular-nums; }
.sites tr.click { cursor: pointer; }
.sites tr.click:hover td { background: var(--surface-2); }
.sites .head { display: flex; justify-content: space-between; align-items: center; padding: 12px 14px; gap: 10px; flex-wrap: wrap; }
.sites h3 { margin: 0; font-size: 14px; }
.add { display: flex; gap: 8px; flex-wrap: wrap; padding: 12px 14px; border-top: 1px solid var(--border); }
code.snip { display: block; background: var(--surface-2); padding: 10px 12px; border-radius: 8px; font-size: 12px; overflow-x: auto; white-space: nowrap; }
.setup { padding: 14px 16px; display: grid; gap: 8px; }
.setup h3 { margin: 0; font-size: 14px; }

@media (max-width: 900px) {
  .kpis { grid-template-columns: repeat(2, 1fr); }
  .kpi { border-right: 0; border-bottom: 1px solid var(--border); }
  .grid2, .grid3 { grid-template-columns: 1fr; }
  .chart svg { height: 200px; }
}
@media (max-width: 520px) {
  .seg button { padding: 7px 8px; }
  .kpi .value { font-size: 22px; }
}