:root {
  --desk: #b9b4a8;
  --chassis: #dcd8ce;
  --chassis-hi: #ece9e1;
  --chassis-lo: #b5afa0;
  --ink: #23211b;
  --ink-soft: #6f6a5d;
  --screen: #0d0f0b;
  --amber: #ffb13d;
  --amber-deep: #8a5f22;
  --accent: #e8501f;
  --accent-deep: #a53412;
  --led-green: #63c05a;
  --led-amber: #ffb13d;
  --mono: ui-monospace, "SF Mono", "Cascadia Mono", Menlo, Consolas, monospace;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

[hidden] { display: none !important; }

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  padding: 28px 16px;
  background:
    radial-gradient(120% 90% at 50% 0%, rgba(255,255,255,0.18), transparent 60%),
    var(--desk);
  font-family: var(--mono);
  color: var(--ink);
}

.unit {
  width: min(960px, 100%);
  background:
    url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='140' height='140'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='2'/><feColorMatrix type='saturate' values='0'/></filter><rect width='140' height='140' filter='url(%23n)' opacity='0.045'/></svg>"),
    linear-gradient(180deg, var(--chassis-hi), var(--chassis) 14%, var(--chassis) 86%, #cfcabf);
  border: 1px solid var(--chassis-lo);
  border-radius: 12px;
  box-shadow:
    0 1px 0 rgba(255,255,255,0.6) inset,
    0 18px 40px -18px rgba(30, 28, 20, 0.55),
    0 2px 6px rgba(30, 28, 20, 0.25);
  padding: 18px 22px 20px;
}

/* ---- top rail ---- */

.rail {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--chassis-lo);
  margin-bottom: 16px;
}

.plate { display: flex; align-items: baseline; gap: 12px; }

.model {
  font-size: 22px;
  font-weight: 800;
  letter-spacing: 0.06em;
}

.model-sub {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.22em;
  color: var(--ink-soft);
}

.status { display: flex; align-items: center; gap: 8px; }

.led {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--led-green);
  box-shadow: 0 0 6px var(--led-green), 0 0 1px rgba(0,0,0,0.5) inset;
}
.led[data-state="running"] {
  background: var(--led-amber);
  box-shadow: 0 0 7px var(--led-amber), 0 0 1px rgba(0,0,0,0.5) inset;
  animation: led-breathe 1.3s ease-in-out infinite;
}

@keyframes led-breathe {
  50% { opacity: 0.55; box-shadow: 0 0 3px var(--led-amber), 0 0 1px rgba(0,0,0,0.5) inset; }
}

@media (prefers-reduced-motion: reduce) {
  .led[data-state="running"] { animation: none; }
}
.led[data-state="paused"] {
  background: var(--led-amber);
  box-shadow: none;
  opacity: 0.6;
}
.led[data-state="fault"] {
  background: #e0503a;
  box-shadow: 0 0 7px #e0503a, 0 0 1px rgba(0,0,0,0.5) inset;
}

.status-text {
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--ink-soft);
  min-width: 7ch;
}

/* ---- screen ---- */

.screen-bay { margin-bottom: 20px; }

.screen {
  position: relative;
  background: var(--screen);
  border-radius: 8px;
  border: 1px solid #918c7e;
  box-shadow:
    0 0 0 3px #c7c2b5 inset,
    0 2px 10px rgba(0,0,0,0.35) inset;
  overflow: hidden;
}

#scope {
  display: block;
  width: 100%;
  height: clamp(240px, 44vh, 400px);
}

.screen::after {
  content: "";
  position: absolute;
  inset: 3px;
  border-radius: 6px;
  background: linear-gradient(112deg, rgba(255,255,255,0.05) 0%, rgba(255,255,255,0.015) 28%, transparent 45%);
  pointer-events: none;
}

.scanlines {
  position: absolute;
  inset: 3px;
  border-radius: 6px;
  background: repeating-linear-gradient(
    to bottom,
    rgba(0, 0, 0, 0.10) 0 1px,
    transparent 1px 3px
  );
  box-shadow: 0 0 46px rgba(0,0,0,0.55) inset, 0 0 90px rgba(0,0,0,0.3) inset;
  pointer-events: none;
}

/* ---- console strip: counters + meter ---- */

.console-row {
  display: flex;
  gap: 8px;
  align-items: stretch;
  margin-top: 10px;
}

.readouts {
  flex: 1;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
}

.lcd {
  background: #17180f;
  border-radius: 5px;
  border: 1px solid #9a9585;
  box-shadow: 0 2px 5px rgba(0,0,0,0.4) inset;
  padding: 7px 10px 6px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.lcd-canvas {
  display: block;
  width: 100%;
  height: 30px;
}

.lcd-label {
  font-size: 9px;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: #7d7863;
}

.meter {
  width: 132px;
  height: 58px;
  flex: none;
  align-self: center;
  border-radius: 6px;
  border: 2px solid #2c2a20;
  box-shadow:
    0 1px 0 rgba(255,255,255,0.4),
    0 2px 4px rgba(30,28,20,0.35);
}

/* ---- controls ---- */

.controls { display: flex; flex-direction: column; gap: 16px; }

.panel-group {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  border: 1px solid var(--chassis-lo);
  border-radius: 8px;
  padding: 16px 14px 12px;
  box-shadow: 0 1px 0 rgba(255,255,255,0.5);
}

.panel-label {
  position: absolute;
  top: -7px;
  left: 10px;
  padding: 0 6px;
  background: var(--chassis);
  font-size: 9px;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--ink-soft);
}

.control-banks {
  display: flex;
  gap: 12px;
  align-items: stretch;
  flex-wrap: wrap;
}

.bank { flex: 1 1 160px; }
.bank-voice { flex: 2 1 220px; }
.bank-run { flex: 0 1 130px; }

.bank-body {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  flex: 1;
}

/* value windows: small backlit inserts, not naked text */
.dial-readout {
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--amber);
  text-shadow: 0 0 6px rgba(255, 177, 61, 0.4);
  background: #17180f;
  border: 1px solid #9a9585;
  border-radius: 4px;
  box-shadow: 0 2px 4px rgba(0,0,0,0.4) inset;
  padding: 4px 10px 3px;
  min-width: 72px;
  text-align: center;
  font-variant-numeric: tabular-nums;
}

.bank .key { width: 100%; }

.bank-run .key-run {
  flex: 1;
  width: 100%;
  min-height: 84px;
  font-size: 13px;
}

.label {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--ink-soft);
}

/* ---- latching buttons ---- */

.latch-row { display: flex; flex-wrap: wrap; gap: 6px; }

.latch {
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.04em;
  color: var(--ink);
  padding: 7px 11px 6px;
  border: 1px solid var(--chassis-lo);
  border-radius: 5px;
  background: linear-gradient(180deg, var(--chassis-hi), var(--chassis));
  box-shadow: 0 1px 0 rgba(255,255,255,0.55) inset, 0 1px 2px rgba(30,28,20,0.25);
  cursor: pointer;
  position: relative;
  padding-left: 20px;
}

.latch::before {
  content: "";
  position: absolute;
  left: 8px;
  top: 50%;
  transform: translateY(-50%);
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: #a29c8c;
  box-shadow: 0 1px 1px rgba(0,0,0,0.3) inset;
}

.latch:hover { background: linear-gradient(180deg, #f2efe8, var(--chassis)); }

.latch.is-on {
  background: linear-gradient(180deg, #c6c1b2, #d3cec1);
  box-shadow: 0 2px 5px rgba(30,28,20,0.45) inset, 0 1px 0 rgba(255,255,255,0.25);
}

.bank-voice .latch {
  padding: 6px 9px 5px 18px;
  font-size: 11px;
}

.latch.is-on::before {
  background: var(--amber);
  box-shadow: 0 0 5px rgba(255, 177, 61, 0.9);
}

/* ---- script bay ---- */

.script-bay {
  display: flex;
  flex-direction: column;
  gap: 8px;
  border-top: 1px solid var(--chassis-lo);
  padding-top: 12px;
}

.script-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.code {
  width: 100%;
  min-height: 190px;
  resize: vertical;
  font-family: var(--mono);
  font-size: 12.5px;
  line-height: 1.55;
  tab-size: 2;
  color: var(--amber);
  caret-color: var(--amber);
  background: #101208;
  border: 1px solid #9a9585;
  border-radius: 6px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.4) inset;
  padding: 12px 14px;
}

.code::selection { background: rgba(255, 177, 61, 0.3); }

.hint {
  font-size: 10px;
  letter-spacing: 0.04em;
  line-height: 1.7;
  color: var(--ink-soft);
}

.hint code {
  color: var(--ink);
  background: rgba(0, 0, 0, 0.07);
  padding: 1px 4px;
  border-radius: 3px;
}

.script-error {
  font-size: 11px;
  line-height: 1.6;
  color: #b0301c;
  background: rgba(224, 80, 58, 0.12);
  border: 1px solid rgba(224, 80, 58, 0.4);
  border-radius: 4px;
  padding: 6px 9px;
  white-space: pre-wrap;
  overflow-x: auto;
}

/* ---- dials ---- */

.dial {
  --angle: 0deg;
  position: relative;
  width: 72px;
  height: 72px;
  border-radius: 50%;
  flex: none;
  cursor: grab;
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
}

.dial:active { cursor: grabbing; }

.dial-tick {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.dial-tick::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  width: 1px;
  height: 5px;
  background: #8a8574;
  transform: translateX(-50%);
}

.dial-face {
  position: absolute;
  inset: 10px;
  border-radius: 50%;
  border: 1px solid #a19b8b;
  background: radial-gradient(circle at 35% 30%, var(--chassis-hi), var(--chassis) 55%, #beb9aa);
  box-shadow:
    0 1px 0 rgba(255,255,255,0.6) inset,
    0 4px 7px rgba(30,28,20,0.4),
    0 1px 2px rgba(30,28,20,0.3);
  transform: rotate(var(--angle));
}

/* knurled skirt */
.dial-face::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: repeating-conic-gradient(
    rgba(35, 33, 27, 0.11) 0deg 4deg,
    transparent 4deg 10deg
  );
}

/* machined cap */
.dial-face::after {
  content: "";
  position: absolute;
  inset: 9px;
  border-radius: 50%;
  border: 1px solid rgba(35, 33, 27, 0.18);
  background: radial-gradient(circle at 38% 32%, #f2efe8, var(--chassis) 60%, #c6c1b3);
  box-shadow: 0 1px 2px rgba(30,28,20,0.3), 0 1px 0 rgba(255,255,255,0.5) inset;
  z-index: 0;
}

.dial-mark {
  position: absolute;
  top: 4px;
  left: 50%;
  width: 3px;
  height: 15px;
  margin-left: -1.5px;
  border-radius: 2px;
  background: var(--ink);
  z-index: 1;
  box-shadow: 0 1px 1px rgba(255,255,255,0.35);
}

.dial-accent .dial-mark { background: var(--accent); }

.dial:focus-visible {
  outline: 2px solid var(--ink);
  outline-offset: 3px;
}

/* ---- keys ---- */

.key {
  font-family: var(--mono);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--ink);
  padding: 11px 20px 10px;
  border: 1px solid var(--chassis-lo);
  border-radius: 6px;
  background: linear-gradient(180deg, var(--chassis-hi), var(--chassis));
  box-shadow: 0 1px 0 rgba(255,255,255,0.55) inset, 0 2px 3px rgba(30,28,20,0.3);
  cursor: pointer;
}

.key:hover { background: linear-gradient(180deg, #f2efe8, var(--chassis)); }
.key:active { box-shadow: 0 2px 4px rgba(30,28,20,0.35) inset; }

.latch:active, .key:active { transform: translateY(1px); }

.key[aria-pressed="true"] {
  box-shadow: 0 2px 4px rgba(30,28,20,0.35) inset;
  background: linear-gradient(180deg, #cfcabd, #d8d4c9);
}

.key-run {
  position: relative;
  color: #fff;
  border-color: var(--accent-deep);
  background: linear-gradient(180deg, #ff6a35, var(--accent));
  box-shadow: 0 1px 0 rgba(255,255,255,0.35) inset, 0 2px 4px rgba(120, 40, 10, 0.45);
}

/* indicator lamp set into the transport key */
.key-run::before {
  content: "";
  position: absolute;
  top: 9px;
  left: 50%;
  transform: translateX(-50%);
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #8a2f10;
  box-shadow: 0 1px 2px rgba(0,0,0,0.4) inset;
}

.key-run.is-running::before {
  background: #ffd489;
  box-shadow: 0 0 6px #ffd489;
}

.key-run:hover { background: linear-gradient(180deg, #ff7c4d, var(--accent)); }
.key-run:active, .key-run.is-running {
  box-shadow: 0 2px 5px rgba(90, 25, 5, 0.5) inset;
  background: linear-gradient(180deg, #d9481a, #e85a2e);
}

/* ---- shared ---- */

button:focus-visible, input:focus-visible, textarea:focus-visible {
  outline: 2px solid var(--ink);
  outline-offset: 2px;
}

.silk {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 16px;
  padding-top: 10px;
  border-top: 1px solid var(--chassis-lo);
  font-size: 8.5px;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--ink-soft);
}

.caption {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.05em;
  color: #6d685c;
  text-align: center;
  max-width: 640px;
}

@media (max-width: 720px) {
  .console-row { flex-wrap: wrap; }
  .readouts { grid-template-columns: repeat(2, 1fr); }
  .meter { flex: 1 1 100%; width: auto; height: 58px; }
  .bank-run { flex: 1 1 100%; }
  .bank-run .key-run { min-height: 52px; }
}