* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html, body {
  height: 100%;
  height: 100dvh; /* accounts for mobile browser chrome (address bar, etc.) */
  background: #000;
  overflow: hidden;
}

.stage {
  position: relative;
  width: 100vw;
  height: 100vh;
  height: 100dvh;
}

#frame {
  width: 100%;
  height: 100%;
  object-fit: contain; /* scale up to touch width or height, whichever fits first -- no cropping, ever */
  pointer-events: none; /* prevent accidental scrubbing/right-click controls */
}

.hud {
  position: absolute;
  bottom: calc(16px + env(safe-area-inset-bottom));
  right: calc(16px + env(safe-area-inset-right));
  display: flex;
  gap: 14px;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.45);
  letter-spacing: 0.02em;
}