:root {
  --bg: #0f1419;
  --card: #1a2332;
  --accent: #e85d04;
  --accent2: #f48c06;
  --text: #f1f5f9;
  --muted: #94a3b8;
  --ok: #22c55e;
  --err: #ef4444;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: 'Segoe UI', system-ui, sans-serif;
  background: linear-gradient(160deg, #0f1419 0%, #1a2332 100%);
  color: var(--text);
  min-height: 100vh;
}

a { color: var(--accent2); text-decoration: none; }

.container { max-width: 960px; margin: 0 auto; padding: 24px; }

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 0 32px;
  border-bottom: 1px solid #334155;
  margin-bottom: 32px;
}

.logo { font-size: 1.5rem; font-weight: 700; color: var(--accent2); }

.card {
  background: var(--card);
  border-radius: 12px;
  padding: 24px;
  margin-bottom: 20px;
  border: 1px solid #334155;
}

h1, h2 { margin-bottom: 16px; }

label { display: block; margin: 12px 0 6px; color: var(--muted); font-size: 0.9rem; }

input, select {
  width: 100%;
  padding: 12px;
  border-radius: 8px;
  border: 1px solid #475569;
  background: #0f172a;
  color: var(--text);
  font-size: 1rem;
}

button, .btn {
  display: inline-block;
  padding: 12px 24px;
  border: none;
  border-radius: 8px;
  background: var(--accent);
  color: white;
  font-size: 1rem;
  cursor: pointer;
  margin-top: 16px;
}

button:hover, .btn:hover { background: var(--accent2); }

button.secondary { background: #475569; }

.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 16px; }

.stat { font-size: 2rem; font-weight: 700; color: var(--accent2); }

.stat-label { color: var(--muted); font-size: 0.85rem; }

.online { color: var(--ok); }
.offline { color: var(--err); }

.msg { padding: 12px; border-radius: 8px; margin: 12px 0; }
.msg.err { background: #450a0a; color: #fca5a5; }
.msg.ok { background: #14532d; color: #86efac; }

.hidden { display: none; }

footer { text-align: center; color: var(--muted); padding: 40px 0; font-size: 0.85rem; }