body {
  margin: 0;
  font-family: 'Poppins', sans-serif;
  background: linear-gradient(135deg, #1d2671, #c33764);
  color: white;
  text-align: center;
}

h1 {
  margin-top: 20px;
  font-size: 36px;
  font-weight: 700;
}

.controls {
  margin: 20px 0;
}

button {
  border: none;
  margin: 6px;
  padding: 12px 16px;
  border-radius: 12px;
  cursor: pointer;
  font-size: 18px;
  background: rgba(255,255,255,0.15);
  backdrop-filter: blur(10px);
  color: white;
  transition: 0.3s;
}

button:hover {
  transform: scale(1.1);
  background: rgba(255,255,255,0.3);
}

#captureBtn {
  background: #ff4d6d;
  font-size: 20px;
  padding: 12px 20px;
  margin-bottom: 20px;
}

.camera-box {
  position: relative;
  width: 640px;
  height: 480px;
  margin: auto;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 20px 50px rgba(0,0,0,0.4);
}

.camera-box {
  position: relative;
  width: 640px;
  height: 480px;
  margin: auto;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 20px 50px rgba(0,0,0,0.4);
}

/* FIXED VIDEO */
video {
  position: absolute;
  top: 0;
  left: 0;
  width: 640px;
  height: 480px;
  object-fit: cover;
  z-index: 1;
}

/* FIXED CANVAS */
canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 640px;
  height: 480px;
  z-index: 2;
}

canvas {
  z-index: 2;
}

video {
  z-index: 1;
}

#preview {
  margin-top: 20px;
  width: 200px;
  border-radius: 15px;
  display: none;
}