:root {
  --bg: #f6f7f9; --card: #ffffff; --text: #1c2330; --muted: #6a7585; --line: #e1e5ea;
  --accent: #1f6feb; --ok: #1a8f4c; --warn: #b7791f; --bad: #c0392b; --idle: #6a7585;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #11151b; --card: #1a2029; --text: #e6e9ee; --muted: #93a0b2; --line: #2a323e;
          --accent: #5b9dff; --ok: #3ecf7a; --warn: #e0a84a; --bad: #ff7b6b; --idle: #93a0b2; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text);
       font: 15px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
main { max-width: 1100px; margin: 0 auto; padding: 24px 16px 48px; }
h1 { font-size: 22px; margin: 8px 0 16px; }
h2 { font-size: 16px; margin: 0 0 12px; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
code, pre, .code { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }
.bar { display: flex; align-items: center; gap: 24px; padding: 10px 16px; background: var(--card);
       border-bottom: 1px solid var(--line); flex-wrap: wrap; }
.brand { font-weight: 700; font-size: 18px; color: var(--text); }
.bar nav { display: flex; gap: 16px; flex: 1; }
.who { display: flex; align-items: center; gap: 12px; color: var(--muted); }
.who form { margin: 0; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 20px; margin-bottom: 16px; }
.narrow { max-width: 420px; margin: 48px auto; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 16px; }
.grid .card { margin-bottom: 0; }
.form { display: flex; flex-direction: column; gap: 14px; }
label { display: flex; flex-direction: column; gap: 6px; font-weight: 500; }
input, select { font: inherit; padding: 9px 11px; border: 1px solid var(--line); border-radius: 8px;
                background: var(--bg); color: var(--text); }
input:focus, select:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
button, .btn { font: inherit; cursor: pointer; border-radius: 8px; padding: 9px 16px; border: 1px solid var(--line);
               background: var(--card); color: var(--text); display: inline-block; }
button.primary { background: var(--accent); border-color: var(--accent); color: #fff; font-weight: 600; }
button.link { border: 0; background: none; color: var(--accent); padding: 0; }
.err { color: var(--bad); margin: 0 0 12px; }
.muted { color: var(--muted); }
.summary { color: var(--muted); margin-bottom: 10px; }
table { width: 100%; border-collapse: collapse; background: var(--card); border: 1px solid var(--line);
        border-radius: 10px; overflow: hidden; }
.card table { border: 0; }
th, td { text-align: left; padding: 10px 14px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--muted); font-weight: 600; font-size: 13px; }
tr:last-child td { border-bottom: 0; }
.badge { display: inline-block; padding: 2px 10px; border-radius: 999px; font-size: 13px; font-weight: 600;
         border: 1px solid currentColor; vertical-align: middle; }
.badge.online { color: var(--ok); } .badge.offline { color: var(--idle); }
.badge.pending { color: var(--warn); } .badge.blocked { color: var(--bad); }
dl { display: grid; grid-template-columns: 170px 1fr; gap: 6px 12px; margin: 0; }
dt { color: var(--muted); } dd { margin: 0; word-break: break-word; }
.code { font-size: 28px; font-weight: 700; letter-spacing: 2px; padding: 14px; background: var(--bg);
        border: 1px dashed var(--line); border-radius: 8px; text-align: center; user-select: all; }
pre { background: var(--bg); border: 1px solid var(--line); border-radius: 8px; padding: 12px; overflow-x: auto; }
@media (max-width: 640px) {
  th:nth-child(5), td:nth-child(5), th:nth-child(6), td:nth-child(6) { display: none; }
  dl { grid-template-columns: 1fr; }
}
.ok { color: var(--ok); margin: 0 0 12px; }
button.danger { color: var(--bad); border-color: var(--bad); }
label.check { flex-direction: row; align-items: center; gap: 8px; font-weight: 400; }
label.check input { width: auto; }