html,
body {
  width: 100%;
  height: 100%;
  margin: 0;
  overflow: hidden;
  background: #f7faf9;
  color: #111827;
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  content: "";
  background:
    linear-gradient(90deg, rgba(15, 118, 110, 0.08), transparent 34%, rgba(29, 78, 216, 0.07)),
    linear-gradient(180deg, rgba(255, 255, 255, 0.74), rgba(241, 245, 249, 0.54));
}

canvas {
  position: fixed;
  inset: 0;
  z-index: 1;
  display: block;
  width: 100vw;
  height: 100vh;
  cursor: grab;
  pointer-events: auto;
  touch-action: none;
  user-select: none;
}

canvas.is-dragging {
  cursor: grabbing;
}

.scene-load-error,
.scene-exit-complete {
  position: fixed;
  inset: 24px;
  z-index: 2;
  display: grid;
  place-items: center;
  color: #111827;
  font-size: 15px;
  line-height: 1.7;
  text-align: center;
}

.scene-exit-complete {
  font-size: 18px;
  font-weight: 700;
}

.scene-load-error strong {
  display: block;
  margin-bottom: 8px;
  font-size: 18px;
}