* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  height: 100%;
  background: #000;
  overflow: hidden;
  user-select: none;
}

body {
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

/* Fullscreen drawing canvas */
#draw {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  z-index: 9999;
  pointer-events: auto;
  touch-action: none;
}

/* Image container */
.container {
  position: relative;
  z-index: 1;
  background: #000;
}

/* Desktop image size */
.center-image {
  width: 25vw;
  max-width: 400px;
  height: auto;

  pointer-events: none;
  user-select: none;
  cursor: default;
}

/* Mobile: image twice as big */
@media (max-width: 768px) {
  .center-image {
    width: 50vw;
    max-width: none;
  }
}