:root {
  --bg: #0b0f14; --side: #0e131a; --card: #11171f; --card2: #151c26; --line: #1f2833; --line2: #2a3441;
  --txt: #e8edf3; --muted: #8592a3; --dim: #5d6876;
  --accent: #4fa3ff; --up: #26c281; --down: #f0506e; --warn: #f5b942; --violet: #a78bfa;
  --mono: "JetBrains Mono", ui-monospace, Consolas, monospace;
  --sans: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  color-scheme: dark;
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--txt); font: 14px/1.45 var(--sans); }
a { color: inherit; text-decoration: none; }
.mono { font-family: var(--mono); font-variant-numeric: tabular-nums; }
.muted { color: var(--muted); } .dim { color: var(--dim); }
.up { color: var(--up); } .down { color: var(--down); } .warn { color: var(--warn); }

/* layout */
.app { display: grid; grid-template-columns: 220px 1fr; min-height: 100vh; }
.side { background: var(--side); border-right: 1px solid var(--line); display: flex; flex-direction: column; position: sticky; top: 0; height: 100vh; }
.brand { display: flex; gap: 10px; align-items: center; padding: 16px 16px 14px; border-bottom: 1px solid var(--line); }
.brand .logo { width: 32px; height: 32px; border-radius: 8px; background: #16202b; display: grid; place-items: center; }
.brand b { display: block; font-size: 14px; } .brand small { color: var(--accent); font-size: 11px; }
.nav { padding: 10px 8px; flex: 1; overflow: auto; }
.nav h6 { margin: 16px 10px 6px; font-size: 10.5px; letter-spacing: .08em; color: var(--dim); font-weight: 600; text-transform: uppercase; }
.nav a { display: flex; gap: 10px; align-items: center; padding: 8px 10px; border-radius: 8px; color: #c6ceda; }
.nav a:hover { background: #141b24; }
.nav a.on { background: #18212c; color: #fff; font-weight: 600; }
.nav svg { width: 16px; height: 16px; stroke: currentColor; fill: none; stroke-width: 1.8; flex: none; }
.me { border-top: 1px solid var(--line); padding: 12px 14px; display: flex; gap: 10px; align-items: center; }
.me .av { width: 30px; height: 30px; border-radius: 50%; background: #1d2633; display: grid; place-items: center; font-weight: 600; }
.me small { display: block; color: var(--muted); font-size: 11px; } .me a { margin-left: auto; color: var(--muted); }

.top { position: sticky; top: 0; z-index: 5; display: flex; gap: 8px; align-items: center; padding: 10px 24px; background: rgba(11,15,20,.92); backdrop-filter: blur(6px); border-bottom: 1px solid var(--line); flex-wrap: wrap; }
.pill { display: inline-flex; align-items: center; gap: 6px; padding: 3px 10px; border-radius: 999px; font-size: 12px; border: 1px solid var(--line2); color: var(--muted); white-space: nowrap; }
.pill i { width: 7px; height: 7px; border-radius: 50%; background: currentColor; }
.pill.ok { color: var(--up); border-color: #1d5c43; background: #0f1f19; }
.pill.bad { color: var(--down); border-color: #6b2434; background: #22121a; }
.pill.wr { color: var(--warn); border-color: #6b5420; background: #221c10; }
.top .right { margin-left: auto; display: flex; gap: 12px; align-items: center; color: var(--muted); font-size: 12px; }
.main { padding: 22px 24px 60px; max-width: 1380px; width: 100%; margin: 0 auto; }
h1 { font-size: 22px; margin: 0 0 2px; } .sub { color: var(--muted); font-size: 13px; margin-bottom: 18px; }

/* cards */
.grid { display: grid; gap: 14px; }
.g4 { grid-template-columns: repeat(4, 1fr); } .g2 { grid-template-columns: 2fr 1fr; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 16px 18px; }
.card h3 { margin: 0 0 2px; font-size: 14px; } .card .sub { margin-bottom: 12px; }
.label { font-size: 10.5px; letter-spacing: .08em; color: var(--muted); text-transform: uppercase; font-weight: 600; }
.big { font: 600 28px/1.15 var(--mono); margin: 6px 0 4px; }
.hero { border-left: 3px solid var(--up); display: flex; align-items: center; gap: 16px; }
.hero.paused { border-left-color: var(--warn); } .hero.stale { border-left-color: var(--down); }
.hero b { font-size: 17px; display: block; margin: 2px 0; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 6px; padding: 7px 14px; border-radius: 8px; border: 1px solid var(--line2); background: #18202b; color: var(--txt); font: 600 13px var(--sans); cursor: pointer; }
.btn:hover { background: #1e2834; } .btn.red { color: var(--down); border-color: #6b2434; } .btn.green { color: var(--up); border-color: #1d5c43; }
.hero .btn { margin-left: auto; }

/* chart */
.chart { width: 100%; height: auto; display: block; margin-top: 8px; }
.chart .grid { stroke: var(--line); stroke-width: 1; } .chart .axis { fill: var(--dim); font: 11px var(--mono); }
.chart .eq { fill: none; stroke: var(--accent); stroke-width: 2; stroke-linejoin: round; }
.chart rect.up { fill: var(--up); } .chart rect.down { fill: var(--down); }
.legend { display: flex; gap: 16px; font-size: 12px; color: var(--muted); margin-top: 6px; }
.legend i { display: inline-block; width: 12px; height: 3px; background: var(--accent); vertical-align: middle; margin-right: 6px; }
.legend i.bars { height: 10px; width: 10px; background: linear-gradient(90deg, var(--up) 50%, var(--down) 50%); border-radius: 2px; }

/* segmented + chips + inputs */
.seg { display: inline-flex; background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 3px; gap: 2px; }
.seg a { padding: 5px 12px; border-radius: 7px; color: var(--muted); font-size: 13px; }
.seg a.on { background: #1d2633; color: #fff; font-weight: 600; }
.bar { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; margin-bottom: 14px; }
.chip { display: inline-flex; align-items: center; gap: 6px; padding: 3px 10px; border: 1px solid var(--line2); border-radius: 999px; font-size: 12px; color: #c6ceda; }
.chip i { width: 7px; height: 7px; border-radius: 50%; }
input[type=text] { background: var(--card); border: 1px solid var(--line2); color: var(--txt); border-radius: 8px; padding: 7px 10px; font: 13px var(--sans); }

/* tables */
.tbl { width: 100%; border-collapse: collapse; background: var(--card); border: 1px solid var(--line); border-radius: 12px; overflow: hidden; }
.tbl th { text-align: left; font-size: 10.5px; letter-spacing: .08em; color: var(--muted); text-transform: uppercase; font-weight: 600; padding: 12px 14px; border-bottom: 1px solid var(--line); background: #10161e; }
.tbl td { padding: 12px 14px; border-bottom: 1px solid var(--line); vertical-align: middle; }
.tbl tr:last-child td { border-bottom: none; } .tbl tr.row:hover td { background: #131a23; }
.tbl .r { text-align: right; }
.nw, .tbl td.mono { white-space: nowrap; }
.tag { display: inline-block; padding: 2px 8px; border-radius: 6px; border: 1px solid var(--line2); font-size: 12px; color: #c6ceda; }
.tag.tp { color: var(--up); border-color: #1d5c43; } .tag.sl { color: var(--down); border-color: #6b2434; } .tag.mem { color: var(--warn); border-color: #6b5420; }
.side-l { color: var(--up); font-weight: 600; } .side-s { color: var(--down); font-weight: 600; }
details.sig > summary { list-style: none; cursor: pointer; } details.sig > summary::-webkit-details-marker { display: none; }
.sigimg { max-width: 100%; border-radius: 10px; border: 1px solid var(--line); margin-top: 8px; }
.empty { padding: 34px; text-align: center; color: var(--muted); }
.sep td { background: #0f141b; color: var(--muted); font-size: 12px; padding: 8px 14px; }
.log { background: #0a0e13; border: 1px solid var(--line); border-radius: 12px; padding: 12px 14px; font: 12px/1.6 var(--mono); color: #b8c2cf; white-space: pre-wrap; max-height: 620px; overflow: auto; }
.log .e { color: var(--down); }
.note { background: var(--card2); border: 1px solid var(--line); border-radius: 10px; padding: 10px 14px; color: var(--muted); font-size: 13px; }
.ok-msg { color: var(--up); } .err-msg { color: var(--down); }

/* login */
.login { min-height: 100vh; display: grid; place-items: center; }
.login .card { width: 360px; text-align: center; padding: 30px; }

@media (max-width: 900px) {
  .app { grid-template-columns: 1fr; }
  .side { position: static; height: auto; } .nav { display: flex; flex-wrap: wrap; } .nav h6 { display: none; } .me { display: none; }
  .g4 { grid-template-columns: 1fr 1fr; } .g2 { grid-template-columns: 1fr; }
  .main { padding: 16px; } .top { padding: 10px 16px; }
  .tbl { display: block; overflow-x: auto; }
}