:root {
  color-scheme: dark;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: #fff;
  background: #000;
}

* { box-sizing: border-box; }
body { margin: 0; }
[hidden] { display: none !important; }

.stage {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  overflow: hidden;
  background: #000;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}

.stage:focus-visible { outline: 1px solid #777; outline-offset: -2px; }

video { display: block; pointer-events: none; }

.cat {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: #000;
}

.error { position: absolute; z-index: 1; max-width: 22rem; margin: 1rem; padding: 1rem; background: #000e; border-radius: 1rem; text-align: center; }

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}