:root {
  color-scheme: dark;
  --bg: #050505;
  --phosphor: #c9c9b8;
  --frame: #8d8d8d;
  --deep-frame: #222;
  --orange: #e34a12;
  --cyan: #08a9b8;
  --green: #22c126;
  --red: #d13a28;
  --pink: #ff68d7;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  background: #090909;
  color: var(--phosphor);
  font-family: "Courier New", Courier, monospace;
}

body {
  display: grid;
  place-items: center;
  min-height: 100vh;
  overflow: hidden;
}

.shell {
  width: min(100vw, calc(100vh * 1.294));
  position: relative;
  border: 0;
  background: #000;
  image-rendering: pixelated;
}

canvas {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1064 / 822;
  background: #000;
  image-rendering: pixelated;
}

.help {
  position: absolute;
  right: 20px;
  top: 14px;
  display: flex;
  gap: 14px;
  align-items: center;
  color: rgba(200, 200, 190, 0.55);
  font-size: 14px;
  pointer-events: none;
}

kbd {
  min-width: 24px;
  display: inline-grid;
  place-items: center;
  padding: 2px 5px;
  border: 1px solid rgba(200, 200, 190, 0.4);
  background: rgba(255, 255, 255, 0.06);
  color: rgba(220, 220, 210, 0.8);
  font: inherit;
}

@media (max-width: 900px) {
  .help {
    display: none;
  }
}