html, body {
  width: 100%;
  height: 100dvh;
  overflow: hidden;
  background-color: #DDD8DD;
}

video {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
}

#video1 { z-index: 2; }
#video2 { z-index: 1; }

.qr-code {
  position: absolute;
  bottom: 80px;
  right: 70px;
  width: 30%;
  z-index: 10;
  justify-content: center;
  align-items: center;
  padding: 60px;
  border-radius: 30px;
  background-color: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(30px);
  -webkit-backdrop-filter: blur(30px);
  box-shadow: -15px 50px 36px 0 rgba(0, 0, 0, 0.25);
  border: 1px solid rgba(255, 255, 255, 0.18);
  display: none;
}

.qr-code img {
  width: 100%;
  height: 100%;
  border-radius: 22px;
  display: block;
  opacity: 0.9;
}

.video-progress-container {
  position: fixed;
  top: 20px;
  right: 20px;
  background: rgba(0, 0, 0, 0.8);
  color: white;
  padding: 10px;
  border-radius: 5px;
  display: block;
  transition: opacity 0.3s;
  z-index: 3;
}