:root {
  color-scheme: dark;
  --page: #0d0d0d;
  --surface: rgba(26, 26, 25, 0.8);
  --surface-solid: #1a1a19;
  --chip-bg: rgba(13, 13, 13, 0.74);
  --ink: #ffffff;
  --ink-2: #c3c2b7;
  --muted: #898781;
  --grid: #2c2c2a;
  --axis: #383835;
  --border: rgba(255, 255, 255, 0.1);
  --border-strong: rgba(255, 255, 255, 0.24);
  --series-1: #3987e5;
  --good: #0ca30c;
  --warning: #fab219;
  --serious: #ec835a;
  --critical: #d03b3b;
  --cool: #3987e5;
  --mid: #d9d6cc;
  --hot: #e66767;
  --radius: 14px;
  --gutter: 16px;
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  font-size: 14px;
  -webkit-font-smoothing: antialiased;
}

* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; background: var(--page); color: var(--ink); }
body { overflow: hidden; }
button { font: inherit; color: inherit; }
[hidden] { display: none !important; }

.app { position: relative; height: 100dvh; }
.stage-wrap { position: absolute; inset: 0; }
.stage { position: absolute; inset: 0; overflow: hidden; }
.stage canvas { display: block; touch-action: none; outline: none; }
.label-layer { position: absolute; inset: 0; pointer-events: none; }
.label-layer:not(.ready) { visibility: hidden; }
.label-layer .tag { transition: opacity 0.3s, border-color 0.15s, background-color 0.15s; }
.label-layer.behind .tag { opacity: 0; pointer-events: none; }

/* ---------- 3D tags ---------- */

.tag {
  pointer-events: auto;
  display: flex;
  align-items: flex-start;
  gap: 8px;
  margin-left: 16px;
  padding: 6px 10px 6px 8px;
  background: var(--chip-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  backdrop-filter: blur(8px);
  font-size: 12px;
  line-height: 1.35;
  text-align: left;
  white-space: nowrap;
  cursor: pointer;
  transition: border-color 0.15s, background-color 0.15s;
}
.tag::before {
  content: "";
  position: absolute;
  left: -16px;
  top: 50%;
  width: 16px;
  height: 1px;
  background: linear-gradient(90deg, rgba(255, 255, 255, 0.75), rgba(255, 255, 255, 0.15));
}
.tag::after {
  content: "";
  position: absolute;
  left: -19px;
  top: calc(50% - 2.5px);
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: #fff;
}
.tag.flip { margin-left: -16px; }
.tag.flip::before { left: auto; right: -16px; background: linear-gradient(270deg, rgba(255, 255, 255, 0.75), rgba(255, 255, 255, 0.15)); }
.tag.flip::after { left: auto; right: -19px; }
.tag:hover, .tag:focus-visible { border-color: var(--border-strong); background: rgba(26, 26, 25, 0.92); outline: none; }
.tag-dot { flex: none; width: 8px; height: 8px; margin-top: 4px; border-radius: 50%; }
.tag-body { display: block; }
.tag-head { display: flex; gap: 6px; align-items: baseline; }
.tag-title { color: var(--ink-2); }
.tag-value { font-weight: 650; font-variant-numeric: tabular-nums; }
.tag-sub { display: block; color: var(--muted); font-size: 11px; font-variant-numeric: tabular-nums; }

/* ---------- top bar ---------- */

.topbar {
  position: absolute;
  top: var(--gutter);
  left: var(--gutter);
  display: flex;
  align-items: center;
  gap: 14px;
  pointer-events: none;
}
.brand { display: flex; align-items: center; gap: 10px; }
.logo { width: 34px; height: 34px; padding: 6px; border-radius: 10px; background: var(--surface-solid); border: 1px solid var(--border); }
.brand h1 { margin: 0; font-size: 16px; font-weight: 650; letter-spacing: -0.01em; }
.brand p { margin: 1px 0 0; font-size: 12px; color: var(--muted); font-variant-numeric: tabular-nums; }

.pill {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 5px 11px 5px 9px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--chip-bg);
  font-size: 12px;
  color: var(--ink-2);
}
.pill i { width: 8px; height: 8px; border-radius: 50%; background: var(--warning); }
.pill[data-state="live"] i { background: var(--good); animation: pulse 2s ease-out infinite; }
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(12, 163, 12, 0.55); }
  100% { box-shadow: 0 0 0 7px rgba(12, 163, 12, 0); }
}

/* ---------- toolbar + legend ---------- */

.toolbar {
  position: absolute;
  left: var(--gutter);
  bottom: var(--gutter);
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 12px 20px;
}
.tools {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  padding: 4px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--chip-bg);
  backdrop-filter: blur(10px);
}
.tools button {
  border: 0;
  background: transparent;
  color: var(--ink-2);
  padding: 7px 12px;
  border-radius: 8px;
  font-size: 12.5px;
  cursor: pointer;
}
.tools button:hover { background: rgba(255, 255, 255, 0.06); color: var(--ink); }
.tools button[aria-pressed="true"] { background: rgba(255, 255, 255, 0.12); color: var(--ink); }
.tools button:focus-visible { outline: 2px solid var(--series-1); outline-offset: 1px; }

.legend { display: grid; gap: 5px; width: 220px; font-size: 11.5px; color: var(--ink-2); }
.legend-bar { height: 6px; border-radius: 3px; background: linear-gradient(90deg, var(--cool), var(--mid) 50%, var(--hot)); }
.legend-ticks { display: flex; justify-content: space-between; color: var(--muted); }

.loading {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  color: var(--muted);
  font-size: 13px;
  pointer-events: none;
  transition: opacity 0.6s;
}
.loading.done { opacity: 0; }

/* ---------- side panel ---------- */

.panel {
  position: absolute;
  top: var(--gutter);
  right: var(--gutter);
  bottom: var(--gutter);
  width: 348px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--axis) transparent;
}

.banner {
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid rgba(250, 178, 25, 0.35);
  background: rgba(250, 178, 25, 0.1);
  color: var(--ink);
  font-size: 12.5px;
  line-height: 1.45;
}

.panel.offline .card { opacity: 0.55; }

.card {
  flex: none;
  transition: opacity 0.4s;
  padding: 14px 16px 16px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--surface);
  backdrop-filter: blur(14px) saturate(1.2);
}
.card-head { display: flex; align-items: baseline; justify-content: space-between; gap: 10px; margin-bottom: 6px; }
.card-head h2 { margin: 0; font-size: 13px; font-weight: 600; color: var(--ink-2); }
.card-sub { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 12px; color: var(--muted); }

.hero { display: flex; align-items: center; gap: 10px; margin: 2px 0 10px; }
.hero-v { font-size: 34px; font-weight: 650; line-height: 1; letter-spacing: -0.02em; }

.chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 9px 3px 5px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  font-size: 12px;
  font-weight: 550;
}
.chip svg { width: 14px; height: 14px; }
.chip[data-level="good"] svg { color: var(--good); }
.chip[data-level="warning"] svg { color: var(--warning); }
.chip[data-level="serious"] svg { color: var(--serious); }
.chip[data-level="critical"] svg { color: var(--critical); }

.meter {
  display: grid;
  grid-template-columns: 3.6rem 1fr minmax(6.4rem, auto);
  align-items: center;
  gap: 4px 10px;
  margin: 7px 0;
  font-size: 12.5px;
}
.meter-k { color: var(--ink-2); }
.meter-k small { margin-left: 6px; font-size: 11px; color: var(--muted); }
.meter-track { height: 6px; border-radius: 3px; background: var(--grid); overflow: hidden; }
.meter-track i { display: block; width: 0; height: 100%; border-radius: 3px; background: var(--series-1); transition: width 0.6s ease; }
.meter-vd { text-align: right; white-space: nowrap; font-variant-numeric: tabular-nums; }
.meter-d { margin-left: 5px; color: var(--muted); }

.fan-row { grid-template-columns: 1fr auto; grid-template-areas: "k vd" "t t"; margin: 10px 0 12px; }
.fan-row .meter-k { grid-area: k; }
.fan-row .meter-track { grid-area: t; }
.fan-row .meter-vd { grid-area: vd; }

.kv { display: grid; grid-template-columns: 1fr 1fr; gap: 6px 18px; margin: 10px 0 4px; font-size: 12.5px; }
.kv > div { display: flex; justify-content: space-between; gap: 8px; padding-bottom: 5px; border-bottom: 1px solid var(--grid); }
.kv > div.wide { grid-column: 1 / -1; }
.kv dt { color: var(--ink-2); }
.kv dd { display: flex; align-items: center; gap: 6px; margin: 0; font-variant-numeric: tabular-nums; }
.kv-swatch { width: 8px; height: 8px; border-radius: 2px; }

.muted { color: var(--muted); }
.small { margin: 4px 0 0; font-size: 11.5px; line-height: 1.45; }

.spark { margin: 12px 0 0; }
.spark figcaption { display: flex; justify-content: space-between; margin-bottom: 6px; font-size: 12px; color: var(--ink-2); }
.sp-range { color: var(--muted); }
.sp-plot { display: grid; grid-template-columns: 1fr auto; gap: 6px; height: 64px; }
.sp-box { position: relative; min-width: 0; cursor: crosshair; }
.sp-box svg { display: block; width: 100%; height: 100%; overflow: visible; }
.sp-axis { display: flex; flex-direction: column; justify-content: space-between; padding: 0; font-size: 10.5px; line-height: 1; color: var(--muted); font-variant-numeric: tabular-nums; }
.sp-line { fill: none; stroke: var(--series-1); stroke-width: 2; stroke-linejoin: round; vector-effect: non-scaling-stroke; }
.sp-area { fill: var(--series-1); opacity: 0.12; }
.sp-grid { stroke: var(--grid); stroke-width: 1; vector-effect: non-scaling-stroke; }
.sp-cross { stroke: var(--ink-2); stroke-width: 1; opacity: 0.5; vector-effect: non-scaling-stroke; }
.sp-dot {
  position: absolute;
  width: 9px;
  height: 9px;
  margin: -4.5px 0 0 -4.5px;
  border-radius: 50%;
  background: var(--series-1);
  box-shadow: 0 0 0 2px var(--surface-solid);
  pointer-events: none;
}
.sp-tip {
  position: absolute;
  bottom: calc(100% + 6px);
  transform: translateX(-50%);
  display: grid;
  gap: 1px;
  padding: 5px 9px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--surface-solid);
  font-size: 11.5px;
  white-space: nowrap;
  pointer-events: none;
}
.sp-tip b { font-variant-numeric: tabular-nums; }
.sp-tip span { color: var(--muted); }

/* ---------- narrow screens: model on top, readings below ---------- */

@media (max-width: 899px) {
  body { overflow: auto; }
  .app { height: auto; }
  .stage-wrap { position: relative; height: 64vh; min-height: 380px; }
  .panel { position: static; width: auto; padding: 0 var(--gutter) var(--gutter); overflow: visible; }
  .legend { display: none; }
  .tag { padding: 4px 8px 4px 6px; }
  .tag-sub { display: none; }
}

@media (max-width: 600px) {
  /* Phones: only the headline tags; the panel below has the rest. */
  .tag[data-key="vrm"], .tag[data-key="chipset"], .tag[data-key="ram"],
  .tag[data-key="intake"], .tag[data-key="exhaust"] { display: none; }
}

@media (max-width: 480px) {
  .tools button { padding: 6px 9px; }
  .pill { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  .pill[data-state="live"] i { animation: none; }
  .meter-track i { transition: none; }
}