html, body { margin: 0; height: 100%; background: #000; }
body {
  min-height: 100vh;
  min-height: 100dvh;
  display: grid;
  place-items: center;
  overflow: hidden;
  background: #000;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
}
.player {
  width: min(100vw, calc(100vh * 620 / 360));
  width: min(100vw, calc(100dvh * 620 / 360));
  aspect-ratio: 620 / 360;
  margin: auto;
  position: relative;
  border-radius: 18px;
  overflow: hidden;
  background: #fff;
}
#game {
  display: block;
  width: 100%;
  height: 100%;
  background: white;
  outline: none;
  touch-action: none;
  -webkit-tap-highlight-color: transparent;
  user-select: none;
  image-rendering: auto;
}
#game:focus-visible { outline: 2px solid #fff; outline-offset: 4px; }
.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;
}