:root {
  --bg: #f6f7f9; --surface: #ffffff; --border: #e3e6ea; --text: #16191d; --muted: #646b75;
  --accent: #2f6fde; --accent-text: #ffffff; --up: #0f8a4f; --down: #c4352b; --warn-bg: #fdecea; --info-bg: #eaf1fd;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0f1215; --surface: #171b20; --border: #2a3038; --text: #e6e9ed; --muted: #959ca6;
    --accent: #6b9cf0; --accent-text: #0f1215; --up: #3ccf8e; --down: #f06b60; --warn-bg: #3a1d1b; --info-bg: #1b2638;
  }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text);
       font: 14px/1.45 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; }
a { color: var(--accent); }
header { display: flex; align-items: center; gap: 12px; padding: 12px 20px; flex-wrap: wrap;
         border-bottom: 1px solid var(--border); background: var(--surface); position: sticky; top: 0; z-index: 5; }
h1 { font-size: 16px; margin: 0; font-weight: 600; }
h2 { font-size: 13px; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); margin: 0 0 10px; font-weight: 600; }
main { max-width: 1200px; margin: 0 auto; padding: 18px 16px 48px; display: grid; gap: 16px; }
main > *, .grid2 > * { min-width: 0; }
button, .btn, select, input, textarea { font: inherit; color: var(--text); }
button, .btn { border: 1px solid var(--border); background: var(--surface); padding: 6px 12px; border-radius: 6px;
               cursor: pointer; text-decoration: none; display: inline-block; white-space: nowrap; }
button:disabled { opacity: .5; cursor: default; }
button.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-text); }
button.danger, .btn.danger { border-color: var(--down); color: var(--down); font-weight: 600; }
button.danger.on { background: var(--down); color: #fff; }
.btn.connected { border-color: var(--up); color: var(--up); }
input, select, textarea { background: var(--bg); border: 1px solid var(--border); border-radius: 6px; padding: 6px 8px; }
textarea { width: 100%; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 13px; }
.tabs { display: flex; gap: 2px; flex-wrap: wrap; }
.tabs button { border: none; background: none; color: var(--muted); }
.tabs button.active { color: var(--text); background: var(--bg); font-weight: 600; }
.spacer { flex: 1; }
.badge { font-size: 11px; font-weight: 700; letter-spacing: .05em; padding: 3px 8px; border-radius: 4px; border: 1px solid var(--border); }
.badge.live { background: var(--down); color: #fff; border-color: var(--down); }
.muted { color: var(--muted); font-size: 12px; }
.banner { padding: 10px 14px; border-radius: 8px; font-weight: 500; border: 1px solid; }
.banner.warn { background: var(--warn-bg); color: var(--down); border-color: var(--down); }
.banner.info { background: var(--info-bg); border-color: var(--accent); }
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 12px; }
.card, .panel { background: var(--surface); border: 1px solid var(--border); border-radius: 10px; padding: 14px 16px; min-width: 0; }
.card .label { color: var(--muted); font-size: 12px; }
.card .value { font-size: 22px; font-weight: 600; margin-top: 2px; font-variant-numeric: tabular-nums; }
.up { color: var(--up); } .down { color: var(--down); }
.chart { position: relative; height: 260px; }
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-variant-numeric: tabular-nums; }
th, td { text-align: left; padding: 7px 8px; border-bottom: 1px solid var(--border); white-space: nowrap; }
th { color: var(--muted); font-weight: 500; font-size: 12px; }
td.num, th.num { text-align: right; }
td.wrap { white-space: normal; }
tr.clickable { cursor: pointer; } tr.clickable:hover, tr.selected { background: var(--bg); }
.empty { color: var(--muted); padding: 12px 0; }
.metrics { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 8px; margin: 12px 0; }
.metrics div { font-size: 12px; color: var(--muted); }
.metrics b { display: block; font-size: 15px; color: var(--text); }
.status { font-size: 12px; padding: 2px 6px; border-radius: 4px; border: 1px solid var(--border); }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; margin-bottom: 10px; }
.form { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 10px; margin-bottom: 12px; }
.form label { display: grid; gap: 4px; font-size: 12px; color: var(--muted); }
pre.log { background: var(--bg); border: 1px solid var(--border); border-radius: 8px; padding: 10px; margin: 0;
          max-height: 360px; overflow: auto; font-size: 12px; white-space: pre-wrap; }
[hidden] { display: none !important; }
.login { max-width: 360px; margin: 10vh auto; }
.login form { display: grid; gap: 12px; }
.login label { display: grid; gap: 4px; font-size: 12px; color: var(--muted); }
.error { color: var(--down); min-height: 1.4em; }
@media (max-width: 800px) { .grid2 { grid-template-columns: 1fr; } header { padding: 10px 16px; } .login { margin: 6vh 16px; } }