:root {
  --bg: #f7f7f5; --card: #ffffff; --ink: #1c1c1a; --muted: #6b6b66; --line: #e4e4df;
  --accent: #1f6feb; --accent-ink: #ffffff; --ok: #1a7f37; --bad: #c62828;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #141413; --card: #1e1e1c; --ink: #ecebe6; --muted: #a3a29b; --line: #34342f; --accent: #4a8df8; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 16px/1.5 system-ui, -apple-system, "Segoe UI", sans-serif; }
main { max-width: 860px; margin: 0 auto; padding: 32px 16px 64px; }
header.top { display: flex; gap: 16px; align-items: baseline; flex-wrap: wrap; margin-bottom: 24px; }
header.top h1 { margin: 0; font-size: 24px; }
header.top nav { display: flex; gap: 12px; font-size: 14px; }
a { color: var(--accent); }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 20px; margin-bottom: 16px; }
.muted { color: var(--muted); font-size: 14px; }
label { display: block; font-size: 14px; font-weight: 600; margin: 12px 0 4px; }
input, select { width: 100%; padding: 10px 12px; border: 1px solid var(--line); border-radius: 8px; background: var(--bg); color: var(--ink); font: inherit; }
button { padding: 10px 16px; border: 0; border-radius: 8px; background: var(--accent); color: var(--accent-ink); font: 600 15px system-ui, sans-serif; cursor: pointer; }
button.secondary { background: transparent; color: var(--accent); border: 1px solid var(--line); }
button:disabled { opacity: .5; cursor: default; }
.row { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
@media (max-width: 600px) { .grid2 { grid-template-columns: 1fr; } }
.big { font-size: 32px; font-weight: 700; }
.msg { margin-top: 12px; font-size: 14px; }
.msg.err { color: var(--bad); }
.msg.ok { color: var(--ok); }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 8px 6px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--muted); font-weight: 600; }
.table-wrap { overflow-x: auto; }
code, pre { font: 13px ui-monospace, SFMono-Regular, Menlo, monospace; }
pre { background: var(--bg); border: 1px solid var(--line); border-radius: 8px; padding: 12px; overflow-x: auto; white-space: pre-wrap; word-break: break-all; }
.pill { display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: 12px; font-weight: 600; border: 1px solid var(--line); }
.pill.active { color: var(--ok); border-color: var(--ok); }
[hidden] { display: none !important; }
footer.version { text-align: center; color: var(--muted); font-size: 12px; padding: 24px 16px 32px; font-variant-numeric: tabular-nums; }
.qr { width: 132px; height: 132px; background: #fff; border-radius: 8px; padding: 4px; flex: none; }
.qr svg { width: 100%; height: 100%; display: block; }