:root {
  --bg: #0f172a;
  --panel: #1e293b;
  --panel2: #273449;
  --text: #e2e8f0;
  --muted: #94a3b8;
  --accent: #38bdf8;
  --ok: #22c55e;
  --off: #ef4444;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
}
header {
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 1rem;
  padding: 1rem 1.5rem; background: var(--panel);
  border-bottom: 1px solid #334155;
}
h1 { font-size: 1.25rem; margin: 0; }
.controls { display: flex; align-items: center; gap: 1rem; }
select {
  background: var(--panel2); color: var(--text);
  border: 1px solid #475569; border-radius: 6px; padding: 0.35rem 0.5rem;
}
label { font-size: 0.85rem; color: var(--muted); display: flex; gap: 0.4rem; align-items: center; }
.status { font-size: 0.8rem; padding: 0.2rem 0.6rem; border-radius: 999px; font-weight: 600; }
.status.on { background: rgba(34,197,94,.15); color: var(--ok); }
.status.off { background: rgba(239,68,68,.15); color: var(--off); }

.tiles {
  display: grid; gap: 1rem; padding: 1.5rem;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
}
.tile {
  background: var(--panel); border: 1px solid #334155;
  border-radius: 12px; padding: 1rem;
}
.tile .name { font-size: 0.8rem; color: var(--muted); }
.tile .val { font-size: 1.9rem; font-weight: 700; margin-top: 0.3rem; }
.tile .unit { font-size: 0.9rem; color: var(--muted); margin-left: 0.25rem; }

.chart-panel { padding: 0 1.5rem 1.5rem; }
.chart-controls { display: flex; gap: 1.5rem; margin-bottom: 0.75rem; }
#chart {
  height: 380px; background: var(--panel);
  border: 1px solid #334155; border-radius: 12px;
}
footer { text-align: center; color: var(--muted); font-size: 0.8rem; padding: 1rem; }

/* Status-Seite */
.navlink { color: var(--accent); text-decoration: none; font-weight: 600;
  border: 1px solid #334155; padding: 0.35rem 0.6rem; border-radius: 6px; }
.card h2 { font-size: 1rem; margin: 0 0 0.6rem; }
.srow { display: flex; justify-content: space-between; padding: 0.3rem 0; border-bottom: 1px solid #2a3a52; }
.srow .k { color: var(--muted); }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 0.45rem 0.5rem; border-bottom: 1px solid #2a3a52; }
th { color: var(--muted); font-weight: 600; font-size: 0.85rem; }