/* ===== CORRIDOR SCROLL CONTAINER ===== */
#corridor {
  position: relative;
  height: 400vh;
}

#viewport {
  position: sticky;
  top: 0;
  width: 100%;
  height: 100vh;
  overflow: hidden;
}

/* ===== CANVAS ===== */
#corridor-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
  pointer-events: none;
}

/* ===== RADIAL VIGNETTE ===== */
#corridor-overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background: radial-gradient(
    ellipse at 50% 50%,
    var(--vignette-center) 0%,
    var(--vignette-mid) 55%,
    var(--vignette-edge) 100%
  );
}

/* ===== GRID TEXTURE ===== */
#grid-overlay {
  position: absolute;
  inset: 0;
  z-index: 2;
  opacity: 0.35;
  pointer-events: none;
}

/* ===== CONTENT LAYER ===== */
#content-layer {
  position: absolute;
  inset: 0;
  z-index: 5;
  pointer-events: none;
}

/* ===== HIDDEN VIDEO SOURCE ===== */
.sr-only-video {
  position: absolute;
  width: 0;
  height: 0;
  opacity: 0;
  pointer-events: none;
}

@media (max-width: 768px) {
  #corridor {
    height: 500vh;
  }
}