:root {
  --bg: #0b0b12;
  --fg: #e5e7eb;
  --muted: #9ca3af;
  --accent: #a78bfa;
  --card: #14141d;
  --border: #23232f;
  --ok: #34d399;
  --err: #f87171;
  --warn: #fbbf24;
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--fg);
  font: 14px/1.5 ui-sans-serif, system-ui, -apple-system, sans-serif;
}
.wrap { max-width: 1080px; margin: 0 auto; padding: 24px; }
.hdr { border-bottom: 1px solid var(--border); background: rgba(0,0,0,.2); }
.hdr .wrap { display: flex; justify-content: space-between; align-items: center; padding: 14px 24px; }
.brand { color: var(--accent); text-decoration: none; font-weight: 700; }
nav a, nav .linkish {
  color: var(--muted); text-decoration: none; margin-left: 20px;
  background: none; border: 0; cursor: pointer; font: inherit;
}
nav a:hover, nav .linkish:hover { color: var(--fg); }
h1 { margin-top: 0; }
.card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: 12px; padding: 20px 22px; margin: 18px 0;
}
.card.narrow { max-width: 420px; margin: 40px auto; }
.grid { width: 100%; border-collapse: collapse; }
.grid th, .grid td { text-align: left; padding: 10px 8px; border-bottom: 1px solid var(--border); }
.grid th { color: var(--muted); font-weight: 500; font-size: 12px; text-transform: uppercase; letter-spacing: .04em; }
.muted { color: var(--muted); }
.small { font-size: 12px; }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; word-break: break-all; }
.dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; margin-right: 6px; vertical-align: middle; }
.dot.ok { background: var(--ok); }
.dot.err { background: var(--err); }
form label { display: block; margin: 10px 0; }
form input, form select {
  display: block; width: 100%; padding: 8px 10px;
  background: #0f0f18; color: var(--fg);
  border: 1px solid var(--border); border-radius: 8px; margin-top: 4px;
  font: inherit;
}
button.primary, .btn {
  display: inline-block; padding: 8px 14px; border-radius: 8px;
  background: var(--accent); color: #0b0b12; border: 0; text-decoration: none;
  font-weight: 600; cursor: pointer;
}
button.primary:hover, .btn:hover { filter: brightness(1.08); }
.alert { padding: 10px 14px; border-radius: 8px; margin: 12px 0; border: 1px solid var(--border); }
.alert.ok { background: rgba(52,211,153,.08); border-color: rgba(52,211,153,.3); color: #6ee7b7; }
.alert.err { background: rgba(248,113,113,.08); border-color: rgba(248,113,113,.3); color: #fca5a5; }
.alert.warn { background: rgba(251,191,36,.08); border-color: rgba(251,191,36,.3); color: #fcd34d; }
.kv { display: grid; grid-template-columns: 160px 1fr; gap: 4px 12px; margin: 8px 0; }
.kv dt { color: var(--muted); }
.qr { width: 220px; margin: 12px 0; }
code { background: #0f0f18; padding: 2px 6px; border-radius: 4px; font-family: ui-monospace, monospace; }