/* sideband: a page from a 1983 service manual.
   Dark = the instrument's own teal panel with white silkscreen.
   Light = the printed manual page: off-white paper, teal ink, one spot colour. */

:root,
[data-theme="dark"] {
  color-scheme: dark;
  --panel: #0e3a3b;
  --panel-deep: #082a2b;
  --panel-raise: #114243;
  --ink: #eef3ea;
  --ink-2: #b2d2cc;
  --line: rgba(238, 243, 234, 0.62);
  --line-soft: rgba(238, 243, 234, 0.2);
  --grid: rgba(238, 243, 234, 0.035);
  --spot: #ffb347;
  --spot-ink: #1c1203;
  --focus: #ffd27a;
  --key-white: #e7ece3;
  --key-white-ink: #0b3a3b;
  --key-black: #061c1d;
  --key-black-ink: #cfe3de;
  --key-edge: #0a2b2c;
  --crt-bezel: #051d1e;
}

[data-theme="light"] {
  color-scheme: light;
  --panel: #f2eee2;
  --panel-deep: #e6e0cd;
  --panel-raise: #f8f5ec;
  --ink: #0b4749;
  --ink-2: #365f61;
  --line: rgba(11, 71, 73, 0.72);
  --line-soft: rgba(11, 71, 73, 0.22);
  --grid: rgba(11, 71, 73, 0.05);
  --spot: #a93a0c;
  --spot-ink: #fff8ee;
  --focus: #a93a0c;
  --key-white: #faf7ef;
  --key-white-ink: #0b4749;
  --key-black: #0b4749;
  --key-black-ink: #f2eee2;
  --key-edge: #0b4749;
  --crt-bezel: #0b3334;
}

:root {
  --mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  --sans: "IBM Plex Sans Condensed", "Arial Narrow", "Helvetica Neue", Arial, sans-serif;
  --gutter: clamp(14px, 3vw, 36px);
  --dock-h: 190px;
}

*,
*::before,
*::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  /* Focus and scrollIntoView stop above the fixed dock, not behind it. */
  scroll-padding-bottom: calc(var(--dock-h) + 12px);
}

body {
  margin: 0;
  min-height: 100vh;
  background-color: var(--panel);
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 24px 24px;
  color: var(--ink);
  font: 14px/1.5 var(--mono);
  padding-bottom: calc(var(--dock-h) + 24px);
  overflow-x: hidden;
}

a { color: inherit; text-underline-offset: 3px; }
a:hover { color: var(--spot); }
code, kbd {
  font-family: var(--mono);
  font-size: 0.92em;
}
kbd {
  display: inline-block;
  padding: 0 4px;
  border: 1px solid var(--line);
  line-height: 1.35;
}

:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 2px;
}

.skip {
  position: absolute;
  left: 8px;
  top: -60px;
  z-index: 50;
  padding: 8px 12px;
  background: var(--ink);
  color: var(--panel);
}
.skip:focus { top: 8px; }

/* ---- header: the drawing's title strip ---------------------------------- */

.sheet-head {
  display: grid;
  grid-template-columns: 1fr auto;
  grid-template-areas:
    "meta toggle"
    "title block";
  gap: 12px 24px;
  padding: 18px var(--gutter) 22px;
  border-bottom: 3px double var(--line);
  max-width: 1320px;
  margin: 0 auto;
}

.sheet-meta {
  grid-area: meta;
  display: flex;
  flex-wrap: wrap;
  gap: 4px 10px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.18em;
  color: var(--ink);
}
.sheet-meta .sep { color: var(--ink-2); }

.sheet-title { grid-area: title; align-self: end; }

h1 {
  margin: 4px 0 0;
  font-family: var(--mono);
  font-size: clamp(46px, 8vw, 92px);
  font-weight: 600;
  line-height: 0.95;
  letter-spacing: -0.035em;
}

.lede {
  margin: 10px 0 0;
  max-width: 44ch;
  font-family: var(--sans);
  font-size: clamp(16px, 1.6vw, 19px);
  line-height: 1.35;
}

.title-block {
  grid-area: block;
  align-self: end;
  display: grid;
  grid-template-columns: repeat(2, minmax(110px, auto));
  margin: 0;
  border: 1px solid var(--line);
}
.title-block div {
  padding: 6px 10px 7px;
  border-right: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
}
.title-block div:nth-child(2n) { border-right: 0; }
.title-block div:nth-last-child(-n + 2) { border-bottom: 0; }
.title-block dt {
  font-size: 10px;
  letter-spacing: 0.14em;
  color: var(--ink-2);
}
.title-block dd {
  margin: 0;
  font-size: 18px;
  font-weight: 600;
}

.theme-toggle {
  grid-area: toggle;
  justify-self: end;
  font: 600 11px/1 var(--mono);
  letter-spacing: 0.1em;
  color: var(--ink);
  background: transparent;
  border: 1px solid var(--line);
  padding: 7px 10px;
  cursor: pointer;
}
.theme-toggle:hover { background: var(--line-soft); }
.theme-toggle-label { color: var(--ink-2); }

/* ---- sections ----------------------------------------------------------- */

main {
  max-width: 1320px;
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.section { padding: 26px 0 8px; }

h2 {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 14px;
  padding-bottom: 7px;
  border-bottom: 1px solid var(--line);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.2em;
}
h2 .num {
  display: inline-block;
  min-width: 42px;
  padding: 2px 6px;
  border: 1px solid var(--ink);
  text-align: center;
  letter-spacing: 0.06em;
}

.sub {
  margin: 0 0 8px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.18em;
  color: var(--ink-2);
}

.section-note,
.help,
.notes p,
.spec-list {
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.5;
}
.section-note { max-width: 88ch; margin: 0 0 16px; }
.help { margin: 6px 0 0; color: var(--ink-2); font-size: 14px; }

/* ---- 4.1 monitor -------------------------------------------------------- */

.monitor-grid {
  display: grid;
  grid-template-columns: 3fr 2fr;
  gap: 16px;
}

.crt { margin: 0; }
.crt-screen {
  position: relative;
  aspect-ratio: 16 / 7;
  border: 10px solid var(--crt-bezel);
  outline: 1px solid var(--line);
  border-radius: 14px;
  background: radial-gradient(ellipse at 50% 45%, #0a2a1a 0%, #04140c 62%, #020906 100%);
  box-shadow: inset 0 0 38px rgba(0, 0, 0, 0.75);
  overflow: hidden;
}
.crt-screen canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
}
.crt-idle {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  margin: 0;
  padding: 12px;
  text-align: center;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: #9dffbc;
  text-shadow: 0 0 8px rgba(124, 255, 160, 0.45);
}
.crt-idle[hidden] { display: none; }
.crt figcaption,
.crt-cap {
  margin-top: 7px;
  font-size: 11px;
  letter-spacing: 0.12em;
}
.fig { font-weight: 600; margin-right: 6px; }
.cap-dim { color: var(--ink-2); margin-left: 6px; }

.readouts {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 1px;
  margin: 14px 0 0;
  background: var(--line-soft);
  border: 1px solid var(--line);
}
.readouts div {
  padding: 7px 12px 8px;
  background: var(--panel);
}
.readouts dt {
  font-size: 10px;
  letter-spacing: 0.16em;
  color: var(--ink-2);
}
.readouts dd {
  margin: 0;
  font-size: 17px;
  font-weight: 500;
  font-variant-numeric: tabular-nums;
}
#meter-limit.active,
#meter-comp.active { color: var(--spot); }

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 36px;
  padding: 8px 12px;
  font: 600 12px/1.1 var(--mono);
  letter-spacing: 0.08em;
  color: var(--ink);
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 0;
  cursor: pointer;
}
.btn:hover { background: var(--line-soft); }
.btn[aria-pressed="true"] {
  background: var(--ink);
  color: var(--panel);
  border-color: var(--ink);
}
.btn.small { min-height: 28px; padding: 5px 8px; font-size: 11px; }

/* ---- 4.2 voice ---------------------------------------------------------- */

.voice-grid {
  display: grid;
  grid-template-columns: 3fr 2fr;
  gap: 28px;
}

.preset-list {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  border-left: 1px solid var(--line);
}
.preset {
  flex-direction: column;
  align-items: flex-start;
  gap: 5px;
  min-height: 62px;
  padding: 9px 10px;
  border-left: 0;
  text-align: left;
}
.preset-num { font-size: 10px; letter-spacing: 0.12em; opacity: 0.85; }
.preset-name { font-size: 13px; }
.preset-note { margin: 10px 0 0; font-family: var(--sans); font-size: 15px; min-height: 2.9em; }

.name-field {
  display: flex;
  align-items: center;
  gap: 10px;
  border-bottom: 1px solid var(--line);
  padding-bottom: 4px;
}
.name-label { font-size: 11px; letter-spacing: 0.16em; color: var(--ink-2); }
.name-field input {
  flex: 1;
  min-width: 0;
  font: 600 20px/1.2 var(--mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink);
  background: transparent;
  border: 0;
  padding: 4px 0;
}
.name-field input:focus-visible { outline-offset: 4px; }
.share-row { margin-top: 12px; }
.link-fallback {
  width: 100%;
  margin-top: 8px;
  padding: 6px;
  font: 12px var(--mono);
  color: var(--ink);
  background: var(--panel-deep);
  border: 1px solid var(--line);
}
.message {
  min-height: 1.5em;
  margin: 14px 0 0;
  font-family: var(--sans);
  font-size: 15px;
  color: var(--ink);
}
.message:not(:empty)::before {
  content: "NOTE \2014 ";
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--spot);
}

/* ---- 4.3 algorithms ----------------------------------------------------- */

.algo-layout {
  display: grid;
  gap: 16px;
}
.algo-side {
  display: flex;
  flex-wrap: wrap;
  align-items: end;
  gap: 8px 24px;
}
.algo-side .fader { flex: 0 1 300px; }
.algo-side .help { flex: 1 1 320px; margin: 0; max-width: 62ch; }
.algo-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}
.algo-card {
  --card-bg: var(--panel);
  /* The card is the size container the diagrams scale against. */
  container-type: inline-size;
  display: grid;
  grid-template-rows: 1fr auto auto;
  justify-items: center;
  gap: 3px;
  min-height: 150px;
  padding: 24px 6px 10px;
  font: inherit;
  color: var(--ink);
  background: var(--card-bg);
  border: 0;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  border-radius: 0;
  cursor: pointer;
}
.algo-card:hover { --card-bg: var(--panel-raise); }
.algo-card[aria-checked="true"] {
  --card-bg: var(--ink);
  color: var(--panel);
}
.algo-card:focus-visible { outline-offset: -5px; }
/* Figures sit on the card's baseline so every output bus lines up, as in a chart. */
/* Every diagram is drawn at one scale (as on a printed chart): up to 1.72 px
 * per drawing unit, or less when the widest diagram (ORGAN, 168 units) would
 * not fit its card. --w is each drawing's width in units, set by panel.js. */
.algo-figure { display: grid; place-items: end center; width: 100%; padding-bottom: 8px; }
.algo-svg {
  display: block;
  height: auto;
  max-width: 100%;
  width: calc(var(--w) * 1px);
  width: calc(var(--w) * min(1.72px, 100cqw / 168));
}
.algo-svg .wire { fill: none; stroke: currentColor; stroke-width: 1.5; vector-effect: non-scaling-stroke; }
.algo-svg .bus { stroke: currentColor; stroke-width: 3.5; vector-effect: non-scaling-stroke; }
.algo-svg .arrow,
.algo-svg .joint { fill: currentColor; }
.algo-svg .opbox rect { fill: var(--card-bg); stroke: currentColor; stroke-width: 1.5; vector-effect: non-scaling-stroke; }
.algo-svg .opbox text {
  fill: currentColor;
  font: 600 12px var(--mono);
  text-anchor: middle;
}
.algo-svg .opbox.carrier rect { fill: currentColor; }
.algo-svg .opbox.carrier text { fill: var(--card-bg); }
.algo-cap { display: flex; gap: 7px; font-size: 11px; letter-spacing: 0.08em; }
.algo-num { font-weight: 600; }
.algo-sub { font-size: 10px; letter-spacing: 0.12em; }

/* ---- faders ------------------------------------------------------------- */

.fader {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: baseline;
  column-gap: 8px;
  min-width: 0;
}
.fader-label {
  font-size: 10.5px;
  letter-spacing: 0.1em;
  color: var(--ink-2);
  white-space: nowrap;
}
.fader-value {
  font-size: 12px;
  font-weight: 500;
  font-variant-numeric: tabular-nums;
  text-align: right;
  white-space: nowrap;
}
.fader-input {
  --fill: 0;
  grid-column: 1 / -1;
  width: 100%;
  height: 22px;
  margin: 0;
  background: transparent;
  -webkit-appearance: none;
  appearance: none;
  cursor: pointer;
}
.fader-input::-webkit-slider-runnable-track {
  height: 9px;
  background:
    linear-gradient(var(--ink), var(--ink)) left 3px / calc(var(--fill) * 100%) 3px no-repeat,
    linear-gradient(var(--line-soft), var(--line-soft)) left 4px / 100% 1px no-repeat,
    repeating-linear-gradient(to right, var(--line) 0 1px, transparent 1px 10%) left bottom / 100% 3px no-repeat;
}
.fader-input::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 9px;
  height: 18px;
  margin-top: -5px;
  background: var(--ink);
  border: 1px solid var(--panel);
  border-radius: 0;
  box-shadow: inset 0 8px 0 -7px var(--panel);
}
.fader-input::-moz-range-track {
  height: 1px;
  background: var(--line-soft);
}
.fader-input::-moz-range-progress {
  height: 3px;
  background: var(--ink);
}
.fader-input::-moz-range-thumb {
  width: 8px;
  height: 17px;
  background: var(--ink);
  border: 1px solid var(--panel);
  border-radius: 0;
}
.fader-input:focus-visible { outline-offset: 1px; }
.fader.wide .fader-value { font-size: 16px; }

/* ---- 4.4 operators ------------------------------------------------------ */

.op-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 34px 26px;
  padding-top: 10px;
}

.op {
  position: relative;
  padding: 16px 14px 20px;
  border: 1px solid var(--line);
  background:
    linear-gradient(var(--ink), var(--ink)) left top / 9px 2px no-repeat,
    linear-gradient(var(--ink), var(--ink)) left top / 2px 9px no-repeat,
    linear-gradient(var(--ink), var(--ink)) right top / 9px 2px no-repeat,
    linear-gradient(var(--ink), var(--ink)) right top / 2px 9px no-repeat,
    linear-gradient(var(--ink), var(--ink)) left bottom / 9px 2px no-repeat,
    linear-gradient(var(--ink), var(--ink)) left bottom / 2px 9px no-repeat,
    linear-gradient(var(--ink), var(--ink)) right bottom / 9px 2px no-repeat,
    linear-gradient(var(--ink), var(--ink)) right bottom / 2px 9px no-repeat,
    var(--panel);
}

.pin {
  position: absolute;
  padding: 0 6px;
  font-size: 10.5px;
  letter-spacing: 0.08em;
  background: var(--panel);
  white-space: pre;
}
.pin-in { top: -9px; left: 16px; }
.pin-out { bottom: -9px; right: 16px; font-weight: 600; }

.op-head {
  display: flex;
  align-items: center;
  gap: 10px;
}
.op-title {
  margin: 0;
  font-size: 19px;
  font-weight: 600;
  letter-spacing: 0.04em;
}
.op-role {
  padding: 2px 6px;
  font-size: 10px;
  letter-spacing: 0.14em;
  border: 1px solid var(--line);
}
.op.carrier .op-role { background: var(--ink); color: var(--panel); border-color: var(--ink); }
.op-head .mode { margin-left: auto; min-width: 84px; }

.op-freq {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin: 10px 0 8px;
  padding: 6px 8px;
  background: var(--panel-deep);
  border: 1px solid var(--line-soft);
}
.op-freq-label { font-size: 10px; letter-spacing: 0.16em; color: var(--ink-2); }
.op-freq-value { font-size: 20px; font-weight: 500; font-variant-numeric: tabular-nums; }

.op-osc {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 4px 16px;
}

.op-eg {
  margin-top: 12px;
  padding-top: 10px;
  border-top: 1px dashed var(--line-soft);
}
.op-eg-head { font-size: 10px; font-weight: 600; letter-spacing: 0.18em; color: var(--ink-2); }
.eg-graph {
  display: block;
  width: 100%;
  height: 56px;
  margin-top: 4px;
  overflow: visible;
}
.eg-axis { stroke: var(--line-soft); stroke-width: 1; vector-effect: non-scaling-stroke; }
.eg-keyoff { stroke: var(--line); stroke-width: 1; stroke-dasharray: 3 3; vector-effect: non-scaling-stroke; }
.eg-line { fill: none; stroke: var(--ink); stroke-width: 2; stroke-linejoin: round; vector-effect: non-scaling-stroke; }
.eg-legend {
  display: flex;
  justify-content: space-between;
  font-size: 9.5px;
  letter-spacing: 0.12em;
  color: var(--ink-2);
}
.eg-legend-off { margin-right: 20%; }
.op-eg-faders {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 2px 12px;
  margin-top: 6px;
}

/* ---- 4.5 notes ---------------------------------------------------------- */

.notes-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 28px;
}
.notes p { margin: 0 0 12px; }
.notes h3 + p,
.notes h3 + ul { margin-top: 0; }
.notes h3:not(:first-child) { margin-top: 18px; }
.spec-list { margin: 0; padding: 0; list-style: none; }
.spec-list li {
  position: relative;
  padding-left: 18px;
  margin-bottom: 7px;
}
.spec-list li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 0.62em;
  width: 7px;
  height: 7px;
  border: 1px solid var(--ink);
}

/* ---- the dock: transport + keybed --------------------------------------- */

.dock {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 20;
  background: var(--panel-deep);
  border-top: 3px double var(--line);
}
.transport {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 14px;
  max-width: 1320px;
  margin: 0 auto;
  padding: 9px var(--gutter) 8px;
}
.start {
  min-width: 150px;
  background: var(--spot);
  color: var(--spot-ink);
  border-color: var(--spot);
}
.start:hover { background: var(--spot); filter: brightness(1.08); }
.start.on {
  background: transparent;
  color: var(--ink);
  border-color: var(--line);
}
.start.on::before {
  content: "";
  width: 8px;
  height: 8px;
  background: var(--spot);
  border-radius: 50%;
}
.transport .volume { width: 230px; }
.transport .volume .fader-value { font-size: 13px; }
.octave { display: flex; align-items: center; gap: 6px; }
.oct-readout {
  min-width: 34px;
  text-align: center;
  font-weight: 600;
}
.audio-status {
  flex: 1 1 220px;
  margin: 0;
  font-family: var(--sans);
  font-size: 14px;
  color: var(--ink);
}
.label-short { display: none; }

.keys {
  max-width: 1320px;
  margin: 0 auto;
  padding: 0 var(--gutter) 10px;
}
.keys-inner {
  position: relative;
  display: flex;
  height: 96px;
  border: 1px solid var(--key-edge);
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
}
.key {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  align-items: center;
  gap: 2px;
  padding: 0 0 6px;
  font: 600 11px/1 var(--mono);
  border: 0;
  border-radius: 0;
  cursor: pointer;
}
.key.white {
  flex: 1 1 0;
  min-width: 0;
  color: var(--key-white-ink);
  background: var(--key-white);
  border-right: 1px solid var(--key-edge);
}
.key.white:last-child { border-right: 0; }
.key.black {
  position: absolute;
  top: 0;
  z-index: 2;
  width: calc(100% / 14 * 0.62);
  height: 60%;
  left: calc(100% / 14 * var(--at) - (100% / 14 * 0.31));
  color: var(--key-black-ink);
  background: var(--key-black);
  border: 1px solid var(--key-edge);
  border-top: 0;
  padding-bottom: 5px;
  font-size: 10px;
}
.key.down,
.key.white.down,
.key.black.down {
  background: var(--spot);
  color: var(--spot-ink);
}
.key-octave { font-size: 9.5px; font-weight: 500; letter-spacing: 0.04em; }

.noscript {
  margin: 20px var(--gutter);
  padding: 12px;
  border: 1px solid var(--line);
}

/* ---- responsive --------------------------------------------------------- */

@media (max-width: 1100px) {
  .op-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .preset-list { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .notes-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 860px) {
  .monitor-grid,
  .voice-grid,
  .algo-layout { grid-template-columns: 1fr; }
  .notes-grid { grid-template-columns: 1fr; }
  .readouts { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .readouts div:nth-child(4) { grid-column: span 2; }
}

@media (max-width: 720px) {
  .algo-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .op-grid { grid-template-columns: 1fr; }
  .sheet-head {
    grid-template-columns: 1fr;
    grid-template-areas: "meta" "title" "block" "toggle";
  }
  .theme-toggle { justify-self: start; }
  .title-block { grid-template-columns: repeat(4, minmax(0, 1fr)); justify-self: stretch; }
  .title-block div { border-bottom: 0; border-right: 1px solid var(--line-soft); }
  .title-block div:nth-child(2n) { border-right: 1px solid var(--line-soft); }
  .title-block div:last-child { border-right: 0; }
  .title-block dd { font-size: 16px; }
  .title-block dt { font-size: 9px; letter-spacing: 0.08em; }
  .algo-card { min-height: 0; padding: 16px 4px 8px; }
  .preset-list { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .preset { min-height: 52px; }
  /* A compact dock: one row of buttons, the volume on a single line, a
   * shorter keybed. The status line only shows when something went wrong
   * (it stays in the accessibility tree either way). */
  .transport { gap: 6px 8px; padding: 6px var(--gutter) 5px; }
  .start { min-width: 0; flex: 1 1 96px; order: 1; }
  .octave { order: 2; gap: 4px; }
  #panic { order: 3; }
  .label-long { display: none; }
  .label-short { display: inline; }
  .transport .volume {
    order: 4;
    flex: 1 1 100%;
    width: auto;
    grid-template-columns: auto minmax(0, 1fr) auto;
    align-items: center;
  }
  .transport .volume .fader-input { grid-column: 2; grid-row: 1; height: 20px; }
  .transport .volume .fader-value { grid-column: 3; grid-row: 1; min-width: 64px; }
  .audio-status { flex-basis: 100%; font-size: 13px; order: 5; }
  .audio-status:not(.alert) {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip-path: inset(50%);
    white-space: nowrap;
  }
  #midi { display: none; }
  .keys { padding-bottom: 8px; }
  .keys-inner { height: 56px; }
  .key { font-size: 10px; padding-bottom: 4px; }
  .key.black { padding-bottom: 3px; }
  .key-octave { display: none; }
}

/* Short screens (a laptop at 1280 x 800): a lower keybed and tighter
 * transport, so the dock leaves the output monitor in view. */
@media (max-height: 860px) and (min-width: 721px) {
  .transport { padding-top: 6px; padding-bottom: 6px; }
  .keys { padding-bottom: 7px; }
  .keys-inner { height: 62px; }
  .key { padding-bottom: 4px; }
  .key-octave { display: none; }
}

@media (max-width: 420px) {
  .transport .btn { padding: 6px 8px; font-size: 11px; }
  .readouts div { padding: 6px 8px 7px; }
  .readouts dd { font-size: 15px; }
  .op { padding: 16px 10px 20px; }
  .op-eg-faders { column-gap: 8px; }
}

@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto !important; transition: none !important; animation: none !important; }
}