:root {
  --bg: #f6f7f9; --panel: #fff; --text: #1d2430; --muted: #6b7280; --line: #e3e6eb;
  --accent: #2563eb; --ok: #16a34a; --warn: #d97706; --bad: #dc2626;
  font: 14px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #0f1216; --panel: #171b21; --text: #e6e8eb; --muted: #9aa3ae; --line: #2a3038; --accent: #60a5fa; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); }
a { color: var(--accent); }
header { display: flex; align-items: center; gap: 20px; padding: 10px 20px; background: var(--panel); border-bottom: 1px solid var(--line); flex-wrap: wrap; }
header .brand { font-weight: 600; }
header nav { display: flex; gap: 4px; flex-wrap: wrap; flex: 1; }
header nav a { padding: 6px 10px; border-radius: 6px; color: var(--muted); text-decoration: none; }
header nav a.on, header nav a:hover { background: var(--bg); color: var(--text); }
main { max-width: 1200px; margin: 0 auto; padding: 20px; }
h1 { font-size: 20px; margin: 0 0 16px; }
h2 { font-size: 16px; margin: 24px 0 10px; }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 16px; margin-bottom: 16px; }
.scroll { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--line); vertical-align: top; white-space: nowrap; }
th { font-weight: 600; color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .03em; }
tr:last-child td { border-bottom: 0; }
.muted { color: var(--muted); }
.small { font-size: 12px; }
.dot { display: inline-block; width: 9px; height: 9px; border-radius: 50%; margin-right: 6px; vertical-align: middle; }
.dot.connected { background: var(--ok); } .dot.stale { background: var(--warn); } .dot.offline { background: var(--muted); opacity: .5; }
.pill { display: inline-block; padding: 1px 7px; border-radius: 99px; font-size: 11px; border: 1px solid var(--line); margin: 1px; }
.pill.ok { color: var(--ok); border-color: currentColor; } .pill.bad { color: var(--bad); border-color: currentColor; }
.pill.warn { color: var(--warn); border-color: currentColor; }
.flash, .error { padding: 10px 14px; border-radius: 8px; margin-bottom: 16px; }
.flash { background: color-mix(in srgb, var(--ok) 12%, transparent); border: 1px solid color-mix(in srgb, var(--ok) 40%, transparent); }
.error { background: color-mix(in srgb, var(--bad) 12%, transparent); border: 1px solid color-mix(in srgb, var(--bad) 40%, transparent); }
form.inline { display: inline; }
label { display: block; margin: 10px 0 4px; font-weight: 500; }
label.check { display: inline-flex; align-items: center; gap: 6px; font-weight: 400; margin: 4px 14px 4px 0; }
input[type=text], input[type=password], input[type=number], select, textarea {
  width: 100%; max-width: 420px; padding: 8px 10px; border: 1px solid var(--line); border-radius: 7px; background: var(--bg); color: var(--text); font: inherit;
}
button, .btn { padding: 7px 14px; border-radius: 7px; border: 1px solid var(--accent); background: var(--accent); color: #fff; font: inherit; cursor: pointer; text-decoration: none; display: inline-block; }
button.secondary { background: transparent; color: var(--text); border-color: var(--line); }
button.danger { background: transparent; color: var(--bad); border-color: var(--bad); }
button.small { padding: 3px 9px; font-size: 12px; }
.row { display: flex; gap: 16px; flex-wrap: wrap; align-items: flex-end; }
.hint { font-size: 12px; color: var(--muted); margin-top: 4px; }
.login { max-width: 360px; margin: 10vh auto; }
code { font-size: 12px; }