:root {
  --bg: #0f1218; --panel: #161b23; --line: #262e3a; --fg: #dbe2ea;
  --muted: #8994a5; --accent: #4f8cff; --ok: #34c77b; --bad: #e0574a;
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--fg);
  font: 14px/1.55 -apple-system, "Segoe UI", "Noto Sans SC", Roboto, sans-serif;
}
body.center { display: flex; align-items: center; justify-content: center; min-height: 100vh; }
a { color: var(--accent); text-decoration: none; }
code { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 13px; }

nav.top {
  display: flex; gap: 4px; align-items: center; flex-wrap: wrap;
  padding: 10px 18px; background: var(--panel); border-bottom: 1px solid var(--line);
}
nav.top .brand { font-weight: 700; margin-right: 14px; }
nav.top a { padding: 6px 12px; border-radius: 6px; color: var(--fg); }
nav.top a:hover { background: #1e2531; }
nav.top a.on { background: var(--accent); color: #fff; }
nav.top .right { margin-left: auto; }

main { max-width: 1180px; margin: 0 auto; padding: 20px 18px 60px; }
h1 { font-size: 21px; margin: 6px 0 18px; }
h2 { font-size: 16px; margin: 0 0 12px; }

.card {
  background: var(--panel); border: 1px solid var(--line);
  border-radius: 10px; padding: 16px 18px; margin-bottom: 18px;
}
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(340px, 1fr)); gap: 18px; }
.grid2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 12px; margin-bottom: 12px; }
.checks { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }

label { display: block; font-size: 13px; color: var(--muted); }
label.inline { display: inline-flex; align-items: center; gap: 6px; color: var(--fg); }
input, select, textarea {
  width: 100%; margin-top: 4px; padding: 7px 9px; background: #0e1218;
  border: 1px solid var(--line); border-radius: 6px; color: var(--fg); font: inherit;
}
label.inline input[type=checkbox] { width: auto; margin: 0; }
textarea { font-family: ui-monospace, Menlo, monospace; font-size: 13px; resize: vertical; }

button, .btn {
  padding: 7px 13px; border: 1px solid var(--line); border-radius: 6px;
  background: #222b38; color: var(--fg); font: inherit; cursor: pointer;
}
button:hover:not(:disabled), .btn:hover { background: #2c3747; }
button:disabled { opacity: .4; cursor: not-allowed; }
button.danger { border-color: #5a2b28; color: #ffb3ac; }
button.link { background: none; border: none; color: var(--muted); }

table { width: 100%; border-collapse: collapse; }
table.kv th { text-align: left; width: 34%; color: var(--muted); font-weight: 400; padding: 4px 8px 4px 0; vertical-align: top; }
table.kv td { padding: 4px 0; }
table.list { margin-top: 8px; font-size: 13px; }
table.list th { text-align: left; color: var(--muted); font-weight: 500; border-bottom: 1px solid var(--line); padding: 7px 8px; }
table.list td { border-bottom: 1px solid #1c232e; padding: 7px 8px; vertical-align: middle; }
tr.active-row { background: #172233; }
td.actions { display: flex; gap: 6px; flex-wrap: wrap; }
td.actions form { display: inline; }

.badge { display: inline-block; padding: 1px 8px; border-radius: 10px; font-size: 12px; }
.badge.up { background: rgba(52,199,123,.16); color: var(--ok); }
.badge.down { background: rgba(224,87,74,.16); color: var(--bad); }
.muted { color: var(--muted); }
.small { font-size: 12px; }
.err-text { color: var(--bad); }
.pw { user-select: all; }

.flash { padding: 9px 13px; border-radius: 7px; margin-bottom: 14px; }
.flash.ok { background: rgba(52,199,123,.12); border: 1px solid rgba(52,199,123,.35); color: var(--ok); }
.flash.err { background: rgba(224,87,74,.12); border: 1px solid rgba(224,87,74,.35); color: #ffada4; }

pre.log {
  background: #0b0e13; border: 1px solid var(--line); border-radius: 7px;
  padding: 10px; max-height: 320px; overflow: auto; margin: 0;
  font-family: ui-monospace, Menlo, monospace; font-size: 12px; white-space: pre-wrap;
}

form.login { width: 320px; }
form.login h1 { text-align: center; }
form.login label { margin-bottom: 12px; }
form.login button { width: 100%; }