.webgl-content * {border: 0; margin: 0; padding: 0;}
.webgl-content .logo, .progress {position: absolute; left: 50%; top: 50%; -webkit-transform: translate(-50%, -50%); transform: translate(-50%, -50%);}
.webgl-content .logo {background: url('progressLogo.Light.png') no-repeat center / contain; width: 154px; height: 130px;}
.webgl-content .progress {height: 18px; width: 141px; margin-top: 90px;}
.webgl-content .progress .empty {background: url('progressEmpty.Light.png') no-repeat right / cover; float: right; width: 100%; height: 100%; display: inline-block;}
.webgl-content .progress .full {background: url('progressFull.Light.png') no-repeat left / cover; float: left; width: 0%; height: 100%; display: inline-block;}

.webgl-content .logo.Dark {background-image: url('progressLogo.Dark.png');}
.webgl-content .progress.Dark .empty {background-image: url('progressEmpty.Dark.png');}
.webgl-content .progress.Dark .full {background-image: url('progressFull.Dark.png');}

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  overflow: hidden;
}

/* Make the wrapper always fill parent (iframe or browser window) */
.webgl-content {
  position: relative;
  width: 100%;
  height: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  background: black; /* black bars if aspect doesn’t match */
}

/* Stage maintains Unity’s natural aspect ratio */
#gameContainer {
  width: 100%;
  height: 100%;
  max-width: 100%;
  max-height: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
}

#gameContainer canvas {
  width: 100%;
  height: 100%;
  object-fit: contain;   /* scale proportionally */
  display: block;
}

/* Fullscreen button overlays bottom-right of the wrapper */
.fullscreen {
  position: absolute;
  bottom: 10px;
  right: 10px;
  width: 38px;
  height: 38px;
  background: transparent center no-repeat;
  background-image: url('fullscreen.png');
  background-size: contain;
  cursor: pointer;
  z-index: 10;
}