:root {
  --bg: #f4f6f8; --card: #fff; --text: #1c2733; --muted: #6b7a89;
  --accent: #1f6feb; --error: #d1242f; --ok: #1a7f37; --warn: #bf8700;
}
* { box-sizing: border-box; }
body { margin: 0; font: 15px/1.5 system-ui, -apple-system, "Segoe UI", sans-serif;
  background: var(--bg); color: var(--text); }
.topbar { display: flex; justify-content: space-between; align-items: center;
  padding: 10px 24px; background: #101828; color: #fff; }
.topbar .brand { color: #fff; text-decoration: none; font-size: 18px; }
.topbar b { color: #7ab7ff; }
.topbar nav { display: flex; gap: 16px; align-items: center; }
.topbar nav a { color: #cdd9e5; text-decoration: none; }
.topbar nav a:hover { color: #fff; }
main { max-width: 960px; margin: 24px auto; padding: 0 16px; }
.card { background: var(--card); border-radius: 10px; padding: 20px 24px;
  margin-bottom: 20px; box-shadow: 0 1px 3px rgba(16,24,40,.08); }
.card.narrow { max-width: 460px; margin: 40px auto; }
h1 { font-size: 22px; margin: 0 0 8px; } h2 { font-size: 17px; }
.muted { color: var(--muted); font-size: 13px; }
.error { color: var(--error); } .ok { color: var(--ok); }
code, .code { font-family: ui-monospace, monospace; background: #eef1f4;
  padding: 2px 6px; border-radius: 4px; }
label { display: block; margin: 10px 0; }
input, select { display: block; width: 100%; margin-top: 4px; padding: 8px 10px;
  border: 1px solid #d0d7de; border-radius: 6px; font: inherit; }
button { margin-top: 12px; padding: 8px 16px; border: 0; border-radius: 6px;
  background: var(--accent); color: #fff; font: inherit; cursor: pointer; }
button.danger { background: var(--error); }
button.link { background: none; color: #cdd9e5; padding: 0; margin: 0; }
button.link:hover { color: #fff; text-decoration: underline; }
form.inline { display: inline; }
form.inline button { margin-top: 0; }
.actions { display: flex; gap: 10px; flex-wrap: wrap; }
table { width: 100%; border-collapse: collapse; margin-top: 10px; }
th { text-align: left; font-size: 12px; color: var(--muted);
  text-transform: uppercase; padding: 6px 8px; border-bottom: 1px solid #e6ebf0; }
td { padding: 8px; border-bottom: 1px solid #eef1f4; }
.badge { display: inline-block; padding: 2px 8px; border-radius: 10px;
  font-size: 12px; font-weight: 600; color: #fff; }
.b-error { background: var(--error); } .b-ok { background: var(--ok); }
.b-warn { background: var(--warn); } .b-unknown { background: #6e7781; }
.b-paused { background: #8250df; }
label.rule { display: flex; gap: 8px; align-items: baseline;
  background: #f6f8fa; padding: 8px 12px; border-radius: 6px; }
label.rule input[type=checkbox] { width: auto; margin: 0; }