@charset "ISO-8859-1";

/* CSS Document */
body {
  /* Fond dégradé */
  background: radial-gradient(circle at top, #1c1f2a, #040506 70%);
  font: 12px Arial, Helvetica, sans-serif;
  color: #fff;

  /* Plein écran */
  margin: 0;
  min-height: 100vh;

  /* Centré */
  display: flex;
  align-items: center;
  justify-content: center;
}

#canvas_holder {
  width: 80%;
  margin: 0 auto;
  background: #fff;

  position: relative; /* clé pour la superposition */
  aspect-ratio: 16 / 9; /* optionnel : garde un ratio propre */
  overflow: hidden; /* évite les débordements */
}

#video,
#canvas {
  position: absolute;
  inset: 0; /* top/right/bottom/left = 0 */
  width: 100%;
  height: 100%;
  display: block;
}

#video {
  z-index: 1;
}

#canvas {
  z-index: 2;
  pointer-events: none;
  opacity: 0;
}

#canvas.visible {
  opacity: 1;
  animation: visible 4s;
}

#canvas.DEBUG {
  opacity: 1;
}

@keyframes visible {
  from {
    filter: brightness(0);
    opacity: 0;
  }
  50% {
    filter: brightness(0);
    opacity: 1;
  }
  to {
    filter: brightness(1);
    opacity: 1;
  }
}

#feedback {
}