@font-face {
  font-family: Manrope;
  src: url('/assets/fonts/manrope-latin.woff2') format('woff2');
  font-display: swap;
}
@font-face {
  font-family: Manrope;
  src: url('/assets/fonts/manrope-cyrillic.woff2') format('woff2');
  font-display: swap;
}
:root {
  --paper: #f4f2ec;
  --yellow: #ffd400;
  --mono: ui-monospace, SFMono-Regular, Menlo, monospace;
}
* {
  box-sizing: border-box;
}
body {
  margin: 0;
  color: #000;
  background: var(--paper);
  font:
    16px/1.5 Manrope,
    Arial,
    sans-serif;
}
a {
  color: inherit;
  text-underline-offset: 4px;
}
button,
select {
  min-height: 44px;
  border: 1px solid #000;
  border-radius: 0;
  padding: 10px 16px;
  font: 700 12px/1.2 var(--mono);
  color: #000;
  background: var(--paper);
  cursor: pointer;
}
button:disabled,
select:disabled {
  opacity: 0.45;
  cursor: wait;
}
:focus-visible {
  outline: 3px solid var(--yellow);
  outline-offset: 3px;
}
.skip-link {
  position: fixed;
  top: 8px;
  left: 8px;
  z-index: 20;
  padding: 12px;
  transform: translateY(-200%);
  background: #000;
  color: #fff;
}
.skip-link:focus {
  transform: none;
}
.lab-header,
.lab-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid #000;
  font: 700 11px/1.3 var(--mono);
}
.lab-brand {
  display: flex;
  gap: 14px;
  align-items: center;
  padding: 14px 20px;
  text-decoration: none;
}
.lab-brand-mark {
  padding: 8px;
  color: #fff;
  background: #000;
}
.lab-header-actions {
  display: flex;
  align-self: stretch;
}
.lab-header-actions > * {
  display: flex;
  align-items: center;
  padding: 12px 18px;
  border-left: 1px solid #000;
  text-decoration: none;
}
.lab-language:hover,
.lab-back:hover {
  background: var(--yellow);
}
.lab-shell {
  width: min(1560px, calc(100% - 40px));
  margin: auto;
}
.lab-intro {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 12px 40px;
  align-items: end;
  padding: 30px 0;
}
.lab-eyebrow {
  grid-column: 1 / -1;
  margin: 0;
  font: 700 11px/1.3 var(--mono);
  letter-spacing: 0.08em;
}
.lab-eyebrow::before {
  content: '';
  display: inline-block;
  width: 30px;
  height: 5px;
  background: var(--yellow);
  margin-right: 12px;
}
h1 {
  margin: 0;
  font:
    900 clamp(36px, 5vw, 76px) / 0.95 Manrope,
    Arial,
    sans-serif;
  letter-spacing: -0.065em;
}
.lab-intro > p:last-child {
  max-width: 60ch;
  margin: 0;
  font-size: 15px;
}
.instrument {
  border: 2px solid #000;
}
.instrument-bar {
  display: grid;
  grid-template-columns: 1.3fr 0.65fr 1fr;
  min-height: 48px;
  border-bottom: 1px solid #000;
}
.instrument-bar > div {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 10px 14px;
  border-right: 1px solid #000;
  font: 11px/1.4 var(--mono);
}
.instrument-bar > div:last-child {
  border: 0;
}
.instrument-bar span {
  color: #555;
}
.instrument-bar strong {
  flex-shrink: 0;
  white-space: nowrap;
}
.viewport-grid {
  position: relative;
  height: clamp(440px, 63vh, 780px);
  overflow: hidden;
  background: #181818;
}
.viewport {
  margin: 0;
}
.viewport-stage {
  position: absolute;
  inset: 0;
}
.viewport canvas {
  display: block;
  width: 100%;
  height: 100%;
}
#fly-canvas {
  touch-action: pan-y;
  cursor: grab;
}
#fly-canvas:active {
  cursor: grabbing;
}
.viewport figcaption {
  position: absolute;
  z-index: 2;
  top: 0;
  left: 0;
  padding: 9px 12px;
  background: #000;
  color: #fff;
  font: 700 10px/1.2 var(--mono);
  pointer-events: none;
}
.viewport-hint {
  position: absolute;
  bottom: 10px;
  left: 10px;
  max-width: 60%;
  margin: 0;
  padding: 6px 8px;
  color: #ddd;
  background: #181818;
  font: 10px/1.4 var(--mono);
  pointer-events: none;
}
.viewport-brain {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 35%;
  height: 49%;
  border: 1px solid #777;
  background: #000;
  color: #fff;
  pointer-events: none;
}
.viewport-brain figcaption {
  font-size: 10px;
}
#brain-canvas {
  position: absolute;
  top: 24px;
  left: 0;
  width: 70%;
  height: calc(100% - 24px);
}
.brain-key {
  position: absolute;
  right: 8px;
  top: 38px;
  bottom: 12px;
  display: flex;
  flex-direction: column;
  justify-content: space-around;
  width: 28%;
  gap: 5px;
  font: 10px/1.2 var(--mono);
}
.brain-key label {
  display: grid;
  gap: 4px;
  color: #aaa;
}
.brain-key .is-active {
  color: var(--yellow);
  font-weight: 700;
}
meter {
  width: 100%;
  height: 5px;
  background: #333;
  appearance: none;
}
meter::-webkit-meter-bar {
  background: #333;
  border: 0;
  border-radius: 0;
}
meter::-webkit-meter-optimum-value {
  background: #aaa;
}
.is-active meter::-webkit-meter-optimum-value {
  background: var(--yellow);
}
meter::-moz-meter-bar {
  background: #aaa;
}
.lab-loading,
.webgl-error {
  position: absolute;
  z-index: 4;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 30px;
  text-align: center;
  color: #fff;
  background: #111;
  font: 700 16px/1.5 var(--mono);
}
[hidden] {
  display: none !important;
}
.transport {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 12px;
  border-top: 1px solid #000;
}
.transport-primary {
  background: var(--yellow);
}
.transport label {
  margin-left: auto;
  font: 11px/1.3 var(--mono);
}
.keyboard-hint {
  margin: 0;
  padding: 9px 12px;
  border-top: 1px solid #000;
  color: #555;
  font: 10px/1.5 var(--mono);
}
.model-note {
  display: grid;
  grid-template-columns: 0.5fr 1fr 1.4fr;
  gap: 20px 40px;
  padding: 60px 0;
}
.model-note-index {
  margin: 0;
  font: 11px/1.3 var(--mono);
}
.model-note h2 {
  margin: 0;
  font-size: 28px;
  line-height: 1.1;
  letter-spacing: -0.04em;
}
.model-note p {
  margin: 0;
}
.asset-credits,
.source-links {
  grid-column: 3;
  font-size: 12px;
  color: #555;
}
.source-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 20px;
}
.lab-footer {
  gap: 15px;
  padding: 20px;
  background: #000;
  color: #fff;
}
@media (max-width: 720px) {
  .lab-back {
    display: none;
  }
  .lab-shell {
    width: calc(100% - 20px);
  }
  .lab-intro {
    grid-template-columns: 1fr;
    gap: 14px;
    padding: 24px 0;
  }
  h1 {
    font-size: clamp(34px, 10vw, 64px);
  }
  .lab-intro > p:last-child {
    font-size: 13px;
  }
  .instrument-bar {
    grid-template-columns: 1fr 1fr;
  }
  .instrument-bar > div {
    gap: 8px;
    padding: 8px;
    font-size: 10px;
  }
  .instrument-bar > div:first-child {
    grid-column: 1/-1;
    border: 0;
    border-bottom: 1px solid #000;
  }
  .viewport-grid {
    height: 520px;
  }
  .viewport-brain {
    width: 44%;
    height: 40%;
    top: 8px;
    right: 8px;
  }
  #brain-canvas {
    width: 100%;
    height: 65%;
  }
  .brain-key {
    top: auto;
    right: 7px;
    left: 7px;
    bottom: 7px;
    width: auto;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    font-size: 8px;
  }
  .viewport-brain figcaption {
    padding: 7px;
    font-size: 8px;
  }
  .viewport-hint {
    max-width: 85%;
    font-size: 9px;
  }
  .transport {
    display: grid;
    grid-template-columns: 1fr 1fr;
  }
  .transport button {
    padding: 10px 7px;
    font-size: 11px;
  }
  #reset-view {
    grid-column: 1/-1;
  }
  .transport label {
    margin: 0;
  }
  .model-note {
    grid-template-columns: 1fr;
    gap: 20px;
    padding: 40px 0;
  }
  .asset-credits,
  .source-links {
    grid-column: 1;
  }
  .lab-footer {
    display: grid;
    font-size: 9px;
  }
}
@media (prefers-reduced-motion: reduce) {
  * {
    scroll-behavior: auto !important;
  }
}