:root {
  --bg: #1a1a2e;
  --card: #16213e;
  --accent: #c9a227;
  --ok: #2ecc71;
  --danger: #e74c3c;
  --text: #eee;
}
* { box-sizing: border-box; }
body { margin: 0; font-family: system-ui, sans-serif; background: var(--bg); color: var(--text); }
body.login { display: flex; min-height: 100vh; align-items: center; justify-content: center; }
header { display: flex; justify-content: space-between; align-items: center; padding: 1rem 1.5rem; background: #0f0f1a; border-bottom: 2px solid var(--accent); }
header a { color: var(--accent); margin-left: 1rem; }
main { padding: 1.5rem; max-width: 1100px; margin: 0 auto; }
.grid { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.card { background: var(--card); border-radius: 8px; padding: 1rem 1.2rem; border: 1px solid #333; }
.card.stat.ok { border-color: var(--ok); }
.card.stat.off { border-color: var(--danger); }
.card h2 { margin: 0 0 .8rem; font-size: 1rem; color: var(--accent); }
.big { font-size: 1.8rem; font-weight: bold; margin: 0; }
.btnrow { display: flex; flex-wrap: wrap; gap: .5rem; }
.btn { border: none; padding: .5rem 1rem; border-radius: 4px; cursor: pointer; background: #444; color: #fff; }
.btn.ok { background: #1e6b3a; }
.btn.danger { background: #8b1a1a; }
.btn:hover { filter: brightness(1.1); }
.output pre { background: #0d0d14; padding: 1rem; overflow: auto; max-height: 400px; font-size: 12px; }
.features li { margin: .4rem 0; }
.err { color: var(--danger); }
label { display: block; margin: .6rem 0; }
input { width: 100%; padding: .5rem; margin-top: .2rem; }