:root{
  --bg:#0b0f14; --panel:#121923; --panel2:#161f2b; --line:#223042;
  --fg:#e6edf6; --muted:#8095ad; --accent:#45c8ff; --accent2:#7cf0c0;
  --ok:#3ddc97; --busy:#ffc24b; --bad:#ff6b6b; --radius:12px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  background:var(--bg); color:var(--fg);
  font:15px/1.5 ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  -webkit-font-smoothing:antialiased;
}
code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.92em}
.muted{color:var(--muted)}
.small{font-size:.84em}
.good{color:var(--ok)} .warn{color:var(--busy)}

/* ---------- top bar ---------- */
.topbar{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:14px 20px;background:linear-gradient(180deg,#121a24,#0d131b);
  border-bottom:1px solid var(--line);position:sticky;top:0;z-index:10;
}
.brand{display:flex;align-items:center;gap:10px;font-size:16px;letter-spacing:.2px}
.mark{color:var(--accent);font-size:18px}
.topbar-right{display:flex;align-items:center;gap:14px}
.btn-ghost{
  color:var(--muted);text-decoration:none;border:1px solid var(--line);
  padding:5px 12px;border-radius:999px;font-size:.86em;
}
.btn-ghost:hover{color:var(--fg);border-color:var(--accent)}
.pulse{width:9px;height:9px;border-radius:50%;background:var(--ok);
  box-shadow:0 0 0 0 rgba(61,220,151,.6);animation:p 2s infinite}
.pulse.stale{background:var(--bad);animation:none}
@keyframes p{0%{box-shadow:0 0 0 0 rgba(61,220,151,.5)}70%{box-shadow:0 0 0 9px rgba(61,220,151,0)}100%{box-shadow:0 0 0 0 rgba(61,220,151,0)}}

/* ---------- fleet strip ---------- */
.fleet{
  display:flex;gap:14px;flex-wrap:wrap;padding:16px 20px;
  background:var(--panel);border-bottom:1px solid var(--line);
}
.fleet-stat{
  display:flex;flex-direction:column;gap:2px;min-width:120px;
  padding:10px 14px;background:var(--panel2);border:1px solid var(--line);border-radius:var(--radius);
}
.fleet-stat.grow{flex:1;min-width:220px}
.fleet-stat .k{font-size:.74em;text-transform:uppercase;letter-spacing:.9px;color:var(--muted)}
.fleet-stat .v{font-size:1.18em;font-weight:600}

/* ---------- node cards ---------- */
.nodes{
  display:grid;gap:18px;padding:20px;
  grid-template-columns:repeat(auto-fit,minmax(520px,1fr));
}
.card{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:18px 20px;
}
.card.down{border-color:#4a2630;background:#151013}
.card-head{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;margin-bottom:14px}
.card h2{margin:0;font-size:1.12em;letter-spacing:.2px}
.card h3{
  margin:18px 0 8px;font-size:.76em;text-transform:uppercase;letter-spacing:1px;
  color:var(--muted);font-weight:600;
}
.err{color:var(--bad);margin:6px 0}

.pill{
  padding:4px 11px;border-radius:999px;font-size:.76em;font-weight:600;
  text-transform:uppercase;letter-spacing:.6px;white-space:nowrap;
}
.pill.ok{background:rgba(61,220,151,.14);color:var(--ok);border:1px solid rgba(61,220,151,.35)}
.pill.busy{background:rgba(255,194,75,.14);color:var(--busy);border:1px solid rgba(255,194,75,.35)}
.pill.bad{background:rgba(255,107,107,.14);color:var(--bad);border:1px solid rgba(255,107,107,.35)}

/* ---------- kpis ---------- */
.kpis{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}
.kpi{
  display:flex;flex-direction:column;gap:1px;padding:10px 12px;
  background:var(--panel2);border:1px solid var(--line);border-radius:10px;
}
.kpi .k{font-size:.7em;text-transform:uppercase;letter-spacing:.8px;color:var(--muted)}
.kpi .v{font-size:1.4em;font-weight:650;line-height:1.15}
.kpi .v small{font-size:.5em;font-weight:500;color:var(--muted);margin-left:1px}

/* ---------- meters ---------- */
.meters{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:14px}
.meter-top{display:flex;justify-content:space-between;font-size:.86em;margin-bottom:5px}
.bar{height:8px;background:#0a1017;border:1px solid var(--line);border-radius:99px;overflow:hidden}
.bar i{display:block;height:100%;background:linear-gradient(90deg,var(--accent),#2b8fd0)}
.bar.alt i{background:linear-gradient(90deg,var(--accent2),#35a98a)}
.meter-foot{margin-top:4px}

/* ---------- table ---------- */
.tbl{width:100%;border-collapse:collapse;font-size:.88em}
.tbl th{
  text-align:left;font-weight:600;color:var(--muted);font-size:.86em;
  padding:6px 8px;border-bottom:1px solid var(--line);white-space:nowrap;
}
.tbl td{padding:7px 8px;border-bottom:1px solid rgba(34,48,66,.5)}
.tbl tr:last-child td{border-bottom:none}
.tbl .model{font-family:ui-monospace,Menlo,Consolas,monospace;font-size:.92em;color:var(--accent2)}
.tbl .row-bad td{color:var(--bad)}

/* ---------- lists / split ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:20px}
ul.plain{list-style:none;margin:0;padding:0}
ul.plain li{padding:3px 0;display:flex;align-items:center;gap:7px;flex-wrap:wrap}
.dot{width:8px;height:8px;border-radius:50%;flex:0 0 auto}
.dot.on{background:var(--ok)} .dot.off{background:var(--bad)}

.trend{margin-bottom:10px}
.spark{width:100%;height:28px;display:block;margin-top:2px}
.spark polyline{fill:none;stroke:var(--accent);stroke-width:1.5;vector-effect:non-scaling-stroke}

.foot{padding:16px 20px 30px;text-align:center}

/* ---------- login ---------- */
.login-body{display:grid;place-items:center;min-height:100vh;
  background:radial-gradient(1100px 600px at 50% -10%,#16222f,#0b0f14)}
.login-card{
  width:min(92vw,360px);background:var(--panel);border:1px solid var(--line);
  border-radius:16px;padding:32px 28px;text-align:center;
  box-shadow:0 24px 60px rgba(0,0,0,.45);
}
.login-mark{color:var(--accent);font-size:28px;margin-bottom:6px}
.login-card h1{margin:0;font-size:1.3em;letter-spacing:.3px}
.login-sub{margin:4px 0 20px;color:var(--muted);font-size:.86em}
.login-card label{display:block;text-align:left;font-size:.78em;color:var(--muted);
  margin-bottom:12px;text-transform:uppercase;letter-spacing:.8px}
.login-card input{
  width:100%;margin-top:5px;padding:10px 12px;border-radius:9px;
  border:1px solid var(--line);background:#0b1118;color:var(--fg);
  font-size:15px;letter-spacing:normal;text-transform:none;
}
.login-card input:focus{outline:none;border-color:var(--accent)}
.login-card button{
  width:100%;margin-top:6px;padding:11px;border:0;border-radius:9px;cursor:pointer;
  background:linear-gradient(180deg,var(--accent),#2b8fd0);color:#05111a;
  font-size:15px;font-weight:650;
}
.login-card button:hover{filter:brightness(1.08)}
.login-error{
  background:rgba(255,107,107,.12);border:1px solid rgba(255,107,107,.35);
  color:#ffb3b3;border-radius:9px;padding:9px 11px;font-size:.86em;margin:0 0 16px;
}

@media (max-width:760px){
  .nodes{grid-template-columns:1fr;padding:14px}
  .kpis{grid-template-columns:repeat(2,1fr)}
  .meters,.split{grid-template-columns:1fr}
}

/* ---------- unified memory pool ---------- */
/* One bar, because the hardware has one pool. Segment colours group by owner:
   blues = held by the GPU, amber = the OS, grey = reclaimable, dark = free. */
.unified{margin-top:16px}
.ubar{
  position:relative;display:flex;height:22px;border-radius:7px;overflow:hidden;
  border:1px solid var(--line);background:#0a1017;
}
.ubar > i{display:block;height:100%;align-self:stretch;transition:width .4s ease}
.ubar .smw{background:linear-gradient(180deg,#58d2ff,#2b8fd0)}  /* model weights */
.ubar .sk{background:linear-gradient(180deg,#7cf0c0,#35a98a)}   /* KV / context  */
.ubar .sg{background:linear-gradient(180deg,#4e79a7,#38597d)}   /* gpu runtime   */
.ubar .so{background:linear-gradient(180deg,#ffc24b,#d79a2b)}   /* OS            */
.ubar .sc{background:repeating-linear-gradient(45deg,#2a3747,#2a3747 5px,#243040 5px,#243040 10px)}
.ubar .sf{background:#0e151d}                                    /* free          */

/* Marker showing how much of the shared pool the GPU is ALLOWED to address.
   It lives in .ubar-wrap, NOT in .ubar — .ubar needs overflow:hidden to clip the
   rounded segment corners, which was silently eating this label. */
.ubar-wrap{position:relative;padding-top:14px}
.ubar-wrap .ceiling{
  position:absolute;top:11px;bottom:-3px;width:2px;background:#ff8ad8;
  box-shadow:0 0 6px rgba(255,138,216,.8);pointer-events:none;
}
.ubar-wrap .ceiling::after{
  content:'GPU limit';position:absolute;top:-12px;right:0;
  font-size:9.5px;letter-spacing:.5px;color:#ff8ad8;white-space:nowrap;
}

.legend{display:flex;flex-wrap:wrap;gap:6px 16px;margin-top:12px;font-size:.82em}
.legend .lg{display:flex;align-items:center;gap:6px;color:var(--muted)}
.legend .lg b{color:var(--fg);font-weight:600}
/* Swatch colours are shared by the legend AND the glossary, so they must NOT be
   scoped to .legend — doing that left the glossary swatches colourless and broke
   the visual link between each explanation and its band on the bar. */
/* The swatch marker. Its segment classes (smw/sk/sg/so/sc/sf) must NEVER collide
   with this class name: a bar segment called 'sw' picked up this 10x10 sizing and
   rendered as a thin sliver, because .ubar i{height:100%} has equal specificity and
   loses to whichever rule comes later. */
i.sw{width:10px;height:10px;border-radius:3px;flex:0 0 auto;display:block}
i.sw.smw{background:linear-gradient(180deg,#58d2ff,#2b8fd0)}
i.sw.sk{background:linear-gradient(180deg,#7cf0c0,#35a98a)}
i.sw.sg{background:linear-gradient(180deg,#4e79a7,#38597d)}
i.sw.so{background:linear-gradient(180deg,#ffc24b,#d79a2b)}
i.sw.sc{background:repeating-linear-gradient(45deg,#2a3747,#2a3747 3px,#243040 3px,#243040 6px)}
i.sw.sf{background:#0e151d;border:1px solid var(--line)}

.poolnote{
  margin:12px 0 0;padding:10px 12px;line-height:1.55;
  background:rgba(69,200,255,.06);border:1px solid rgba(69,200,255,.18);border-radius:9px;
}
.poolnote strong{color:var(--fg)}

/* ---------- segment glossary ---------- */
/* "GPU runtime" and "Disk cache" meant nothing to a first-time reader, so every
   segment now carries a plain-English explanation on hover and in here. */
/* Always visible. It was a <details>, but the 5s re-render kept collapsing it and
   preserving the open state proved fragile — the explanation IS the point, so it
   should not hide behind an interaction that can break. Two columns keeps it short. */
.glossary{
  list-style:none;margin:12px 0 0;padding:12px 14px;
  background:rgba(255,255,255,.015);border:1px solid var(--line);border-radius:9px;
  display:grid;grid-template-columns:1fr 1fr;gap:8px 22px;
}
/* flex, not grid: a `1fr` track inside a shrink-wrapped grid resolves to
   min-content and renders the prose one word per line. */
.glossary li{
  display:flex;gap:9px;align-items:flex-start;
  font-size:.8em;color:var(--muted);line-height:1.5;
}
.glossary li span{flex:1 1 auto;min-width:0}
.glossary li strong{color:var(--fg);font-weight:600}
.glossary li i.sw{margin-top:5px;width:10px;height:10px;border-radius:3px;flex:0 0 10px;display:block}
.legend .lg{cursor:help}

@media (max-width:900px){ .glossary{grid-template-columns:1fr} }

/* "Available" is the number that answers "how much room do I have?" — free alone
   understates it, because reclaimable page cache is available too. */
.avail{color:var(--accent2)}