body {
  margin: 0;
  padding: 0;
  background: #101010;
  overflow: hidden;
  color: white;
  font-family: sans-serif;
}

.app {
  position: relative;
}

.heading {
  position: absolute;
  top: 17px;
  left: 15px;
  z-index: 10;
  padding: 18px 22px;
  border-radius: 14px;
  background: rgba(18, 18, 22, 0.6);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.35),
    inset 0 0 0 1px rgba(255, 255, 255, 0.08);
  max-width: 320px;
}

/* Title */
.heading h1 {
  margin: 0 0 7px;
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: #ffffff;
  text-align: center;
}

/* Rules */
.rules {
  list-style: none;
  padding: 0;
  margin: 0;
}

.rules li {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.85);
  line-height: 1.5;
  padding: 4px 0;
}

/* Subtle hover effect */
.heading:hover {
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.45),
    inset 0 0 0 1px rgba(255, 255, 255, 0.12);
}

/* Canvas and Video */
.canvas {
  z-index: 1;
}

#webcam {
  object-fit: cover;
}

#webcam,
.canvas {
  position: absolute;
  transform: scaleX(-1);
}