:root {
  --bg: #f7f8fa;
  --panel: #ffffff;
  --border: #e3e6ec;
  --text: #1c2024;
  --muted: #6b7280;
  --accent: #2563eb;
  --warn: #dc2626;
  --ok: #059669;
  --sidebar-bg: #14181f;
  --sidebar-text: #c9ced6;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1115;
    --panel: #171a21;
    --border: #262b34;
    --text: #e6e8ec;
    --muted: #8b93a1;
    --sidebar-bg: #0b0d11;
    --sidebar-text: #aab1bd;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 14px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

.layout { display: grid; grid-template-columns: 240px minmax(0, 1fr); min-height: 100vh; }

/* ── sidebar ─────────────────────────────────────────────────────────────── */

.sidebar {
  position: sticky;
  top: 0;
  align-self: start;
  height: 100vh;
  overflow-y: auto;
  padding: 20px 14px;
  background: var(--sidebar-bg);
  color: var(--sidebar-text);
}

.sidebar-title { margin: 0; font-size: 15px; font-weight: 600; color: #fff; }
.sidebar-sub { margin: 2px 0 18px; font-size: 11px; text-transform: uppercase; letter-spacing: .06em; opacity: .6; }

.brands { list-style: none; margin: 0; padding: 0; }
.brands .brand-sep {
  margin: 16px 0 6px;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: .08em;
  opacity: .45;
}
.brands a {
  display: block;
  padding: 6px 9px;
  border-radius: 6px;
  color: inherit;
  text-decoration: none;
  overflow-wrap: anywhere;
}
.brands a:hover { background: rgba(255, 255, 255, .07); color: #fff; }
.brands a.active { background: var(--accent); color: #fff; font-weight: 600; }

.subnav { list-style: none; margin: 2px 0 8px; padding: 0 0 0 9px; border-left: 1px solid rgba(255, 255, 255, .12); }
.subnav a { padding: 3px 9px; font-size: 12.5px; opacity: .85; }

/* ── content ─────────────────────────────────────────────────────────────── */

.content { padding: 26px 30px 60px; max-width: 1180px; }

.page-head h1 { margin: 0; font-size: 23px; }
.meta { margin: 4px 0 0; color: var(--muted); font-size: 12.5px; overflow-wrap: anywhere; }

h2 { margin: 34px 0 12px; font-size: 15px; text-transform: uppercase; letter-spacing: .05em; color: var(--muted); }

.cards { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 20px; }
.card {
  flex: 1 1 180px;
  padding: 14px 16px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
}
.card-label { margin: 0; font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: .05em; }
.card-value { margin: 6px 0 0; font-size: 24px; font-weight: 600; font-variant-numeric: tabular-nums; }
.card-value .unit { font-size: 12px; font-weight: 400; color: var(--muted); }
.card-hint { margin: 4px 0 0; font-size: 12px; color: var(--muted); }
a.card { display: block; text-decoration: none; color: inherit; }
a.card:hover { border-color: var(--accent); }

/* ── tables ──────────────────────────────────────────────────────────────── */

table.data {
  width: 100%;
  border-collapse: collapse;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
}
table.data th, table.data td { padding: 8px 12px; text-align: left; border-bottom: 1px solid var(--border); vertical-align: middle; }
table.data thead th { font-size: 11.5px; text-transform: uppercase; letter-spacing: .05em; color: var(--muted); white-space: nowrap; }
table.data tbody tr:last-child td { border-bottom: 0; }
table.data.compact th, table.data.compact td { padding: 4px 10px; }
.num { text-align: right; font-variant-numeric: tabular-nums; }
.name { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 12.5px; }
.value { display: inline-block; min-width: 38px; font-variant-numeric: tabular-nums; font-weight: 600; }
.chart { white-space: nowrap; }
.chart .spark { vertical-align: middle; }

.warn { color: var(--warn); }
.delta { font-size: 11px; font-variant-numeric: tabular-nums; }
.delta.up { color: var(--ok); }
.delta.down { color: var(--warn); }
.muted { color: var(--muted); font-weight: 400; }
.empty { color: var(--muted); }

/* ── charts ──────────────────────────────────────────────────────────────── */

.spark { display: inline-block; }
.spark-axis { stroke: var(--border); stroke-width: 1; }
.spark-goal { stroke: var(--muted); stroke-width: 1; stroke-dasharray: 3 3; opacity: .7; }
.spark-empty { fill: var(--muted); font-size: 10px; }
.bar { display: inline-block; vertical-align: middle; }
.bar-track { fill: var(--border); }

/* ── diagnostics & details ───────────────────────────────────────────────── */

.diag {
  padding: 12px 14px;
  margin-bottom: 10px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-left: 3px solid var(--warn);
  border-radius: 8px;
}
.diag-head { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.diag-bar { display: flex; align-items: center; gap: 8px; margin: 8px 0 0; font-size: 12.5px; }
.diag-desc { margin: 8px 0 0; font-size: 13px; color: var(--muted); }
.pill {
  padding: 1px 7px;
  border-radius: 999px;
  background: var(--bg);
  border: 1px solid var(--border);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 11.5px;
}

details { margin-bottom: 6px; }
details summary { cursor: pointer; padding: 8px 12px; background: var(--panel); border: 1px solid var(--border); border-radius: 8px; }
details[open] summary { border-bottom-left-radius: 0; border-bottom-right-radius: 0; }
details > table.data { border-top: 0; border-top-left-radius: 0; border-top-right-radius: 0; }
details > p { margin: 6px 0 0; font-size: 13px; color: var(--muted); }
details summary::marker { color: var(--muted); }

.foot { margin-top: 40px; font-size: 12px; color: var(--muted); }

/* ── failures ────────────────────────────────────────────────────────────── */

.dot-fail {
  display: inline-block;
  width: 7px;
  height: 7px;
  margin-left: 6px;
  border-radius: 50%;
  background: var(--warn);
  vertical-align: middle;
}

.error-panel {
  margin-top: 20px;
  padding: 16px 18px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-left: 3px solid var(--warn);
  border-radius: 10px;
}
.error-panel h2 {
  margin: 0 0 12px;
  font-size: 14px;
  text-transform: none;
  letter-spacing: 0;
  color: var(--warn);
}
.error-kv th {
  width: 190px;
  color: var(--muted);
  font-weight: 500;
  font-size: 12.5px;
  text-transform: none;
  letter-spacing: 0;
  vertical-align: top;
}
.error-kv td {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 12.5px;
  overflow-wrap: anywhere;
}
pre {
  margin: 6px 0 0;
  padding: 10px 12px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  overflow-x: auto;
  font-size: 12px;
}
.card-hint.warn { color: var(--warn); }

@media (max-width: 820px) {
  .layout { grid-template-columns: minmax(0, 1fr); }
  .sidebar { position: static; height: auto; }
  .content { padding: 20px 16px 48px; }
}