:root {
  --bg: #0f1419;
  --panel: #1a222c;
  --text: #e8eef4;
  --muted: #8b9aab;
  --accent: #3dd6c6;
  --warn: #f0a060;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "Segoe UI", system-ui, sans-serif;
  background: radial-gradient(1200px 600px at 10% -10%, #1a3a40 0%, var(--bg) 55%);
  color: var(--text);
  min-height: 100vh;
}
header { padding: 1.5rem 1.25rem 0.5rem; }
.brand { font-size: 1.6rem; font-weight: 700; letter-spacing: 0.02em; }
.tag { color: var(--muted); margin: 0.25rem 0 0.75rem; }
.status {
  display: inline-block;
  padding: 0.35rem 0.7rem;
  border-radius: 6px;
  background: var(--panel);
  font-size: 0.85rem;
  color: var(--muted);
}
.status.ok { color: var(--accent); }
.status.err { color: var(--warn); }
main { padding: 1rem 1.25rem 2rem; max-width: 960px; margin: 0 auto; }
.kpis {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}
.kpis article {
  background: var(--panel);
  border-radius: 10px;
  padding: 1rem;
}
.kpis h2 { margin: 0; font-size: 0.75rem; color: var(--muted); font-weight: 600; text-transform: uppercase; }
.kpi { margin: 0.4rem 0 0; font-size: 1.6rem; font-weight: 700; }
.chart-wrap {
  background: var(--panel);
  border-radius: 10px;
  padding: 1rem;
}
.chart-wrap h2 { margin: 0 0 0.75rem; font-size: 1rem; }
.note { color: var(--muted); font-size: 0.85rem; margin-top: 1.25rem; line-height: 1.45; }