* { margin: 0; padding: 0; box-sizing: border-box; }
html, body { height: 100%; overflow: hidden; background: #000; }
body {
  font-family: -apple-system, 'SF Pro Display', sans-serif;
  -webkit-user-select: none;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}

#app {
  position: relative;
  width: 100vw;
  height: 100vh;
  overflow: hidden;
}

#preview {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scaleX(-1);
}

#shutter {
  position: absolute;
  bottom: max(40px, env(safe-area-inset-bottom) + 20px);
  left: 50%;
  transform: translateX(-50%);
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: #fff;
  border: 4px solid rgba(255, 255, 255, 0.35);
  cursor: pointer;
  transition: transform 0.1s;
}

#shutter:active { transform: translateX(-50%) scale(0.92); }

#shutter:disabled { opacity: 0.4; cursor: not-allowed; }

#status {
  position: absolute;
  top: max(20px, env(safe-area-inset-top) + 10px);
  left: 50%;
  transform: translateX(-50%);
  color: #fff;
  font-size: 14px;
  padding: 6px 14px;
  background: rgba(0, 0, 0, 0.55);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-radius: 14px;
  opacity: 0;
  transition: opacity 0.3s;
  pointer-events: none;
  white-space: nowrap;
}

#status.visible { opacity: 1; }