:root {
  --bg: #f6f7f9;
  --card: #fff;
  --ink: #1a1d23;
  --muted: #5c6570;
  --line: #e3e6eb;
  --accent: #2f6fed;
  --accent-ink: #fff;
  --ok: #0a7a3e;
  --err: #b00020;
  --banner: #fff4d6;
  --radius: 10px;
  --shadow: 0 1px 2px rgba(16, 24, 40, .06), 0 1px 3px rgba(16, 24, 40, .08);
  --max: 56rem;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --sans: system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
}
* { box-sizing: border-box; }
body {
  margin: 0; color: var(--ink); background: var(--bg);
  font: 16px/1.5 var(--sans);
}
a { color: var(--accent); text-decoration-thickness: .08em; }
a:hover { text-decoration: underline; }
.wrap { max-width: var(--max); margin: 0 auto; padding: 1rem 1.25rem 3rem; }
.site-header {
  position: sticky; top: 0; z-index: 20;
  background: rgba(255,255,255,.92); backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.site-header .bar {
  max-width: var(--max); margin: 0 auto; padding: .65rem 1.25rem;
  display: flex; align-items: center; gap: .75rem; flex-wrap: wrap;
}
.brand { font-weight: 700; color: var(--ink); text-decoration: none; letter-spacing: -.02em; }
.brand:hover { text-decoration: none; }
.nav-links { display: flex; gap: .85rem; flex-wrap: wrap; align-items: center; flex: 1; }
.nav-links a { color: var(--muted); text-decoration: none; font-size: .95rem; }
.nav-links a:hover, .nav-links a.active { color: var(--ink); }
.nav-actions { display: flex; gap: .5rem; align-items: center; margin-left: auto; }
.menu-toggle {
  display: none; border: 1px solid var(--line); background: var(--card);
  border-radius: 8px; padding: .35rem .55rem; cursor: pointer;
}
.banner {
  background: var(--banner); border-bottom: 1px solid #f0df9a;
  padding: .55rem 1.25rem; font-size: .95rem;
}
.banner .wrap { padding: 0; }
h1 { font-size: 1.6rem; letter-spacing: -.02em; margin: 1.25rem 0 .75rem; }
h2 { font-size: 1.15rem; margin: 1.5rem 0 .5rem; }
p, li { color: var(--ink); }
.muted, small { color: var(--muted); }
.err { color: var(--err); }
.ok { color: var(--ok); }
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 1rem 1.1rem; margin: 1rem 0;
}
label { display: block; margin: .55rem 0; font-size: .92rem; color: var(--muted); }
label > input, label > select, label > textarea {
  display: block; width: 100%; max-width: 28rem; margin-top: .25rem;
  color: var(--ink); background: #fff; border: 1px solid var(--line);
  border-radius: 8px; padding: .5rem .65rem; font: inherit;
}
label.inline, .check {
  display: inline-flex; align-items: center; gap: .4rem; color: var(--ink); margin: 0;
}
.check input { width: auto; margin: 0; accent-color: var(--accent); }
button, .btn {
  appearance: none; border: 1px solid var(--line); background: var(--card);
  color: var(--ink); border-radius: 8px; padding: .4rem .75rem; font: inherit;
  cursor: pointer;
}
button.primary, .btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
button:hover, .btn:hover { filter: brightness(.98); }
button.danger { color: var(--err); border-color: #f0c7cd; }
table {
  width: 100%; border-collapse: collapse; background: var(--card);
  border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden;
  box-shadow: var(--shadow); font-size: .95rem;
}
th, td { padding: .65rem .75rem; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
th { background: #fafbfc; color: var(--muted); font-weight: 600; font-size: .82rem; text-transform: uppercase; letter-spacing: .04em; }
tr:last-child td { border-bottom: 0; }
code, .mono { font-family: var(--mono); font-size: .88em; }
.stack { display: grid; gap: .75rem; }
.row { display: flex; flex-wrap: wrap; gap: .5rem; align-items: center; }
.hint { font-size: .88rem; color: var(--muted); margin: .25rem 0 .75rem; }
select.impersonate { min-width: 10rem; max-width: 14rem; padding: .35rem .5rem; border-radius: 8px; border: 1px solid var(--line); font: inherit; }
@media (max-width: 720px) {
  .menu-toggle { display: inline-flex; }
  .nav-links {
    display: none; width: 100%; flex-direction: column; align-items: flex-start;
    padding: .25rem 0 .5rem; gap: .55rem;
  }
  .nav-links.open { display: flex; }
  .nav-actions { width: 100%; justify-content: space-between; margin-left: 0; }
  table { display: block; overflow-x: auto; }
}