:root {
  --bg: #07080d;
  --panel: rgba(12, 15, 24, 0.82);
  --line: rgba(140, 165, 210, 0.16);
  --ink: #dfe6f4;
  --dim: #8d9ab5;
  --kda: #4fb0f5;
  --mla: #f2716c;
  --moe: #a37cff;
  --amber: #ffbe4d;
  --good: #62e0a0;
  --warn: #ff8a6b;
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;
  --sans: system-ui, -apple-system, "Segoe UI", Inter, sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
}

#app { position: fixed; inset: 0; }

#gpu {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  touch-action: none;
  cursor: grab;
}
#gpu:active { cursor: grabbing; }

#labels {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 2;
}

#labels > div {
  position: absolute;
  top: 0;
  left: 0;
  white-space: nowrap;
  font: 500 11.5px/1.2 var(--mono);
  letter-spacing: 0.01em;
  color: var(--ink);
  padding: 2px 7px;
  border-radius: 5px;
  background: rgba(8, 10, 18, 0.62);
  border: 1px solid var(--line);
  backdrop-filter: blur(3px);
}
#labels .dim { color: var(--dim); background: rgba(8, 10, 18, 0.42); border-color: transparent; }
#labels .hot { color: #fff; border-color: rgba(255, 255, 255, 0.28); background: rgba(20, 26, 42, 0.8); }
#labels .good { color: var(--good); border-color: rgba(98, 224, 160, 0.35); }
#labels .warn { color: var(--warn); border-color: rgba(255, 138, 107, 0.35); }

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

#top {
  position: absolute;
  top: 0; left: 0; right: 0;
  z-index: 4;
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 12px 18px;
  background: linear-gradient(180deg, rgba(7, 8, 13, 0.92), rgba(7, 8, 13, 0));
}

#brand {
  font: 700 15px/1 var(--sans);
  letter-spacing: -0.01em;
  white-space: nowrap;
}
#brand span {
  display: block;
  font: 400 10.5px/1.4 var(--mono);
  color: var(--dim);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

#nav { display: flex; gap: 6px; flex-wrap: wrap; flex: 1; }

#nav button {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  border: 1px solid var(--line);
  background: rgba(14, 18, 28, 0.6);
  color: var(--dim);
  font: 500 12px/1 var(--sans);
  padding: 7px 11px;
  border-radius: 999px;
  cursor: pointer;
  transition: color .15s, border-color .15s, background .15s;
}
#nav button:hover { color: var(--ink); border-color: rgba(160, 190, 240, 0.35); }
#nav button.on {
  color: #fff;
  background: rgba(60, 110, 190, 0.28);
  border-color: rgba(120, 175, 255, 0.55);
}
#nav .num {
  font: 600 10px/1 var(--mono);
  opacity: .55;
}

#status {
  font: 400 10.5px/1 var(--mono);
  color: var(--dim);
  white-space: nowrap;
}

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

#side {
  position: absolute;
  top: 64px;
  right: 0;
  bottom: 0;
  width: 384px;
  z-index: 3;
  overflow-y: auto;
  padding: 4px 20px 28px;
  background: linear-gradient(270deg, rgba(7, 9, 15, 0.94) 62%, rgba(7, 9, 15, 0));
  scrollbar-width: thin;
  scrollbar-color: rgba(140, 165, 210, 0.3) transparent;
}
#side::-webkit-scrollbar { width: 8px; }
#side::-webkit-scrollbar-thumb { background: rgba(140, 165, 210, 0.25); border-radius: 4px; }

#scene-title {
  font: 700 21px/1.15 var(--sans);
  letter-spacing: -0.015em;
  margin: 10px 0 4px;
}
#scene-sub {
  margin: 0 0 14px;
  color: var(--dim);
  font-size: 12.5px;
  line-height: 1.45;
}

#readouts {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  margin-bottom: 16px;
}
.ro {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  padding: 6px 10px;
  background: rgba(11, 14, 22, 0.9);
  font: 400 11.5px/1.35 var(--mono);
}
.rk { color: var(--dim); }
.rv { color: var(--ink); text-align: right; }

#panel p {
  font-size: 13px;
  line-height: 1.62;
  color: #c6cfe2;
  margin: 0 0 12px;
}
#panel b { color: #fff; font-weight: 600; }
#panel i { color: var(--ink); }
#panel .k {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--kda);
  background: rgba(79, 176, 245, 0.10);
  padding: 1px 5px;
  border-radius: 4px;
}
#panel .eq {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--amber);
  background: rgba(255, 190, 77, 0.07);
  border-left: 2px solid rgba(255, 190, 77, 0.5);
  padding: 9px 12px;
  border-radius: 0 6px 6px 0;
  overflow-x: auto;
}
#panel .note {
  font-size: 12.5px;
  color: var(--dim);
  border-left: 2px solid var(--line);
  padding-left: 12px;
}

#panel h3 {
  font: 600 12px/1 var(--mono);
  color: var(--dim);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin: 20px 0 8px;
}

table.cmp {
  width: 100%;
  border-collapse: collapse;
  font: 400 11px/1.4 var(--mono);
}
table.cmp th {
  text-align: right;
  font-weight: 500;
  color: var(--dim);
  padding: 4px 6px;
  border-bottom: 1px solid var(--line);
}
table.cmp th:first-child { text-align: left; }
table.cmp td {
  padding: 3px 6px;
  text-align: right;
  color: #b3bed3;
  border-bottom: 1px solid rgba(140, 165, 210, 0.07);
}
table.cmp td:first-child { text-align: left; color: var(--dim); }
table.cmp td.hl { color: #fff; }
table.cmp td.d { color: var(--kda); }

#credits {
  margin-top: 22px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font: 400 10.5px/1.6 var(--mono);
  color: var(--dim);
}
#credits a { color: var(--kda); text-decoration: none; }
#credits a:hover { text-decoration: underline; }

/* ---------- control dock ---------- */

#dock {
  position: absolute;
  left: 18px;
  bottom: 16px;
  z-index: 4;
  max-width: min(560px, calc(100vw - 440px));
}

#controls {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 14px;
  padding: 12px 14px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 10px;
  backdrop-filter: blur(9px);
}

.ctl {
  display: flex;
  align-items: center;
  gap: 8px;
  font: 400 11.5px/1 var(--mono);
  color: var(--dim);
  user-select: none;
}
.ctl .cl { white-space: nowrap; }
.ctl.slider {
  display: grid;
  grid-template-columns: auto auto;
  grid-template-areas: "label label" "range value";
  gap: 3px 9px;
  align-items: center;
}
.ctl.slider > .cl { grid-area: label; color: var(--dim); }
.ctl.slider > input { grid-area: range; }
.ctl.slider > output { grid-area: value; color: var(--ink); min-width: 34px; }

input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 132px;
  height: 3px;
  background: rgba(140, 165, 210, 0.25);
  border-radius: 3px;
  outline: none;
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 13px;
  height: 13px;
  border-radius: 50%;
  background: var(--kda);
  cursor: pointer;
  border: 2px solid #0a0d16;
}
input[type="range"]::-moz-range-thumb {
  width: 13px; height: 13px; border-radius: 50%;
  background: var(--kda); cursor: pointer; border: 2px solid #0a0d16;
}
input[type="checkbox"] {
  appearance: none;
  width: 30px;
  height: 16px;
  border-radius: 999px;
  background: rgba(140, 165, 210, 0.2);
  position: relative;
  cursor: pointer;
  transition: background .15s;
}
input[type="checkbox"]::after {
  content: "";
  position: absolute;
  top: 2px; left: 2px;
  width: 12px; height: 12px;
  border-radius: 50%;
  background: #cfd8ea;
  transition: transform .15s;
}
input[type="checkbox"]:checked { background: rgba(79, 176, 245, 0.55); }
input[type="checkbox"]:checked::after { transform: translateX(14px); background: #fff; }

select {
  background: rgba(20, 25, 38, 0.95);
  color: var(--ink);
  border: 1px solid var(--line);
  border-radius: 6px;
  font: 400 11.5px var(--mono);
  padding: 5px 7px;
  cursor: pointer;
}

button.push {
  background: rgba(20, 25, 38, 0.9);
  color: var(--ink);
  border: 1px solid var(--line);
  border-radius: 6px;
  font: 400 11.5px var(--mono);
  padding: 6px 11px;
  cursor: pointer;
}
button.push:hover { border-color: rgba(160, 190, 240, 0.45); }

#hint {
  margin-top: 8px;
  font: 400 10.5px/1 var(--mono);
  color: rgba(141, 154, 181, 0.7);
}

/* ---------- boot / error ---------- */

#boot {
  position: absolute;
  inset: 0;
  z-index: 9;
  display: grid;
  place-content: center;
  gap: 14px;
  justify-items: center;
  background: var(--bg);
  color: var(--dim);
  font: 400 12px var(--mono);
}
.spin {
  width: 26px; height: 26px;
  border: 2px solid rgba(140, 165, 210, 0.2);
  border-top-color: var(--kda);
  border-radius: 50%;
  animation: spin 0.9s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.fail {
  max-width: 460px;
  text-align: center;
  color: var(--warn);
  font-family: var(--sans);
  line-height: 1.6;
}
.fail p { color: var(--dim); font-size: 13px; }

@media (max-width: 1080px) {
  #side { width: 320px; }
  #dock { max-width: calc(100vw - 360px); }
}

@media (max-width: 780px) {
  #side {
    top: auto;
    left: 0;
    right: 0;
    bottom: 0;
    width: auto;
    max-height: 46vh;
    background: rgba(7, 9, 15, 0.95);
    border-top: 1px solid var(--line);
    padding: 12px 16px 20px;
  }
  #dock { max-width: calc(100vw - 36px); bottom: auto; top: 108px; }
  #hint { display: none; }
  #status { display: none; }
}