:root {
  --bg: #f6f7f9; --card: #ffffff; --ink: #14181f; --muted: #5b6573; --line: #dfe3e9;
  --accent: #2456d6; --ok: #1a9e5c; --bad: #d6362f; --warn: #d98a00; --none: #b9c0ca;
  --sig: #2456d6; --gw: #d98a00; --net: #7b46c9;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0f1218; --card: #171b23; --ink: #e8ebf0; --muted: #98a2b1; --line: #262c37;
    --accent: #6b95ff; --ok: #3ac17f; --bad: #ff6b63; --warn: #f0b03a; --none: #4a5261;
    --sig: #6b95ff; --gw: #f0b03a; --net: #b48cff;
  }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 15px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
.hidden { display: none !important; }
.muted { color: var(--muted); } .small { font-size: 12.5px; } .err { color: var(--bad); min-height: 1.2em; margin: 0; }
h1 { font-size: 20px; margin: 0 0 4px; } h2 { font-size: 16px; margin: 0 0 10px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 16px; }
.btn { font: inherit; padding: 7px 14px; border-radius: 8px; border: 1px solid var(--line); background: var(--card); color: var(--ink); cursor: pointer; }
.btn:hover { border-color: var(--accent); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.danger { background: var(--bad); border-color: var(--bad); color: #fff; }
.btn.ghost { border-color: transparent; color: var(--muted); }
.btn:disabled { opacity: .5; cursor: not-allowed; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.login { min-height: 100vh; display: grid; place-items: center; padding: 16px; }
.login-card { width: 100%; max-width: 340px; display: grid; gap: 12px; }
label { display: grid; gap: 4px; font-size: 13px; color: var(--muted); }
input, select, textarea { font: inherit; color: var(--ink); background: var(--bg); border: 1px solid var(--line); border-radius: 8px; padding: 8px 10px; }
.top { display: flex; flex-wrap: wrap; align-items: end; gap: 12px; padding: 12px 16px; border-bottom: 1px solid var(--line); background: var(--card); }
.brand { font-weight: 700; font-size: 17px; margin-right: 8px; align-self: center; }
.sel { display: grid; gap: 2px; font-size: 12px; }
.top #updated { margin-left: auto; align-self: center; }
.tabs { display: flex; gap: 4px; padding: 8px 16px 0; border-bottom: 1px solid var(--line); overflow-x: auto; }
.tabs button { font: inherit; background: none; border: 0; border-bottom: 3px solid transparent; padding: 8px 12px; color: var(--muted); cursor: pointer; }
.tabs button.on { color: var(--ink); border-bottom-color: var(--accent); font-weight: 600; }
main { padding: 16px; max-width: 1240px; margin: 0 auto; }
.grid { display: grid; gap: 14px; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); }
.pill { display: inline-block; padding: 2px 9px; border-radius: 999px; font-size: 12px; font-weight: 600; color: #fff; background: var(--none); }
.pill.ok { background: var(--ok); } .pill.bad { background: var(--bad); } .pill.warn { background: var(--warn); }
.kv { display: grid; grid-template-columns: auto 1fr; gap: 3px 12px; margin-top: 10px; font-size: 14px; }
.kv dt { color: var(--muted); } .kv dd { margin: 0; overflow-wrap: anywhere; }
.host-card { cursor: pointer; } .host-card:hover { border-color: var(--accent); }
.host-card h2 { display: flex; justify-content: space-between; gap: 8px; align-items: center; }
.stats { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 14px; }
.stat { flex: 1 1 150px; } .stat b { display: block; font-size: 24px; }
canvas { width: 100%; display: block; border-radius: 6px; }
.legend { display: flex; flex-wrap: wrap; gap: 14px; font-size: 12.5px; color: var(--muted); margin: 6px 0 0; }
.legend i { display: inline-block; width: 10px; height: 10px; border-radius: 2px; margin-right: 5px; vertical-align: -1px; }
.chartwrap { position: relative; }
.cross { display: none; position: absolute; top: 10px; width: 1px; background: var(--muted); opacity: .55; pointer-events: none; }
.tip { position: fixed; pointer-events: none; z-index: 50; min-width: 190px; background-color: var(--card); opacity: 1; border: 1px solid var(--line); border-radius: 10px; padding: 10px 12px; font-size: 13px; box-shadow: 0 10px 30px rgba(0,0,0,.45), 0 0 0 1px var(--bg); }
.tt-h { font-weight: 700; margin-bottom: 6px; padding-bottom: 6px; border-bottom: 1px solid var(--line); }
.tt-r { display: flex; justify-content: space-between; gap: 18px; padding: 1px 0; }
.tt-r span { color: var(--muted); } .tt-r i { display: inline-block; width: 8px; height: 8px; border-radius: 50%; margin-right: 6px; }
.tt-r b { font-variant-numeric: tabular-nums; } .tt-r b.bad { color: var(--bad); }
.tt-m { margin-top: 6px; padding-top: 6px; border-top: 1px solid var(--line); color: var(--muted); font-size: 12px; }
table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
th, td { text-align: left; padding: 7px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--muted); font-weight: 600; position: sticky; top: 0; background: var(--card); }
.tablewrap { overflow: auto; max-height: 70vh; }
pre { margin: 0; padding: 12px; background: var(--bg); border: 1px solid var(--line); border-radius: 8px; overflow: auto; max-height: 70vh; font: 12.5px/1.4 ui-monospace, Consolas, monospace; white-space: pre-wrap; }
.toolbar { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; margin-bottom: 12px; }
.seg button { font: inherit; padding: 6px 12px; border: 1px solid var(--line); background: var(--card); color: var(--muted); cursor: pointer; }
.seg button:first-child { border-radius: 8px 0 0 8px; } .seg button:last-child { border-radius: 0 8px 8px 0; }
.seg button.on { background: var(--accent); border-color: var(--accent); color: #fff; }
.chg { color: var(--bad); font-weight: 600; } .st { color: var(--ok); font-weight: 600; }
.form-grid { display: grid; gap: 12px; max-width: 560px; }
.note { border-left: 3px solid var(--warn); padding: 8px 12px; background: var(--bg); border-radius: 0 8px 8px 0; font-size: 13.5px; }

.c-sig { background: var(--sig); } .c-gw { background: var(--gw); } .c-net { background: var(--net); }
.c-ok { background: var(--ok); } .c-bad { background: var(--bad); } .c-none { background: var(--none); }
.mt { margin-top: 14px; } .flt { min-width: 220px; }