:root {
  --app-scale: 0.8;
  --app-width: 980px;
}

body {
  min-width: calc(var(--app-width) * var(--app-scale));
}

.keeper-app {
  width: 980px;
  padding: 20px 40px 38px;
  transform: scale(var(--app-scale));
  transform-origin: top center;
  margin: 0 auto;
}

.device-bar {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr 146px;
  gap: 14px;
  align-items: end;
  width: 900px;
  margin: 0 auto 16px;
}

.audio-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  align-items: end;
}

.audio-actions button {
  height: 32px;
  border: 2px solid var(--line);
  border-radius: 6px;
  background: #fff;
  cursor: pointer;
  font-weight: 800;
}

.audio-actions button.running,
.audio-actions button.stopped {
  background: var(--green);
}

.audio-actions button.starting {
  background: var(--amber);
}

.audio-actions button.error {
  background: var(--red);
}

.keeper-frame {
  --x-left-outer: 112px;
  --x-left-inner: 319px;
  --x-center: 450px;
  --x-right-inner: 581px;
  --x-right-outer: 788px;
  --x-left-vu: 224px;
  --x-right-vu: 676px;
  position: relative;
  width: 900px;
  height: 836px;
  margin: 0 auto;
  border: 0;
  border-radius: 7px;
  background: #fff;
}

.keeper-frame::before {
  content: "";
  position: absolute;
  inset: 0;
  border: 2px solid #000;
  border-radius: inherit;
  pointer-events: none;
}

.keeper-frame .knob-control {
  position: absolute;
  grid-template-columns: 100%;
  transform: translateX(-50%);
}

.keeper-frame .knob-label {
  justify-self: center;
  color: #000;
  font-size: 22px;
  line-height: 1;
  min-height: 26px;
}

.keeper-frame .knob-face {
  box-shadow: 12px 12px 18px rgba(0, 0, 0, 0.22);
}

.gain-unity-marker {
  position: absolute;
  top: 5px;
  left: 50%;
  width: 2px;
  height: 12px;
  transform: translateX(-50%) rotate(77.6deg);
  transform-origin: 50% 34px;
  background: var(--soft-line);
  z-index: 4;
}

.keeper-vu {
  position: absolute;
  display: grid;
  gap: 20px;
  min-height: 0;
  padding: 0;
  transform: translateX(-50%);
}

.keeper-vu .vu-segment {
  width: 20px;
  height: 20px;
  border-radius: 50%;
}

.keeper-ready {
  position: absolute;
  bottom: auto;
  display: block;
  width: 120px;
  height: 26px;
  color: #000;
  font-size: 21px;
  font-weight: 900;
}

.keeper-ready-a {
  left: var(--x-left-outer);
  top: 748px;
  transform: translateX(-10px);
}

.keeper-ready-b {
  left: calc(var(--x-right-outer) - 110px);
  top: 748px;
}

.keeper-ready .status-dot {
  position: absolute;
  top: 3px;
  width: 20px;
  height: 20px;
}

.keeper-ready-a .status-dot {
  left: 0;
}

.keeper-ready-b .status-dot {
  right: 0;
}

.keeper-ready strong {
  position: absolute;
  top: 0;
  line-height: 1.2;
}

.keeper-ready-a strong {
  left: 32px;
}

.keeper-ready-b strong {
  right: 32px;
}

.keeper-clock {
  position: absolute;
  left: var(--x-center);
  top: 194px;
  transform: translateX(-50%);
  color: #000;
  font-size: 22px;
  line-height: 1;
}

.keeper-clock .status-dot {
  width: 20px;
  height: 20px;
}

.keeper-length-row {
  position: absolute;
  left: var(--x-center);
  top: 426px;
  grid-template-columns: repeat(3, 60px);
  gap: 37px;
  width: 254px;
  transform: translateX(-50%);
}

.keeper-length-row .length-control {
  width: 60px;
  gap: 8px;
}

.keeper-length-row .button-led {
  width: 20px;
  height: 20px;
}

.keeper-length-row .length-button {
  width: 60px;
  height: 60px;
  font-size: 23px;
}

.crossfader-control {
  --xfader: 0;
  position: absolute;
  left: calc(var(--x-center) - 175px);
  top: 599px;
  width: 350px;
  height: 52px;
}

.crossfader-input {
  position: absolute;
  inset: 0;
  opacity: 0;
  pointer-events: none;
}

.crossfader-rail {
  position: absolute;
  left: 0;
  top: 17px;
  width: 350px;
  height: 24px;
  border: 2px solid #000;
  border-radius: 5px;
  background: #adadad;
  cursor: ew-resize;
  touch-action: none;
}

.crossfader-rail::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 2px;
  height: 16px;
  transform: translate(-50%, -50%);
  background: #000;
}

.crossfader-handle {
  position: absolute;
  left: calc((100% - 36px) * var(--xfader));
  top: -37px;
  width: 36px;
  height: 98px;
  border: 2px solid #000;
  border-radius: 5px;
  background: #000;
  box-shadow: 12px 12px 18px rgba(0, 0, 0, 0.28);
}

.crossfader-control.dragging .crossfader-rail {
  background: #bdbdbd;
}

.keeper-loop-button {
  position: absolute;
  left: calc(var(--x-center) - 85.5px);
  top: 730px;
  width: 171px;
  height: 60px;
  margin: 0;
  font-size: 22px;
}