/* ─── Demo Container ─── */
.demo-wrap {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 0;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border2);
  background: var(--bg);
  box-shadow: var(--shadow-lg);
  height: 560px;
}

@media (max-width: 1024px) {
  .demo-wrap {
    grid-template-columns: 1fr;
  }
  .controls-panel {
    max-height: 400px;
    overflow-y: auto;
    border-left: none !important;
    border-top: 1px solid var(--border);
  }
}

/* ─── Canvas Wrap ─── */
.canvas-wrap {
  position: relative;
  background: var(--bg-canvas);
  min-height: 0;
}

.canvas-wrap canvas {
  width: 100% !important;
  height: 100% !important;
  display: block;
}

/* ─── Canvas Overlays ─── */
.demo-label {
  position: absolute;
  top: 0.85rem;
  left: 0.85rem;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  background: rgba(255,255,255,0.8);
  padding: 0.2rem 0.65rem;
  border-radius: 5px;
  pointer-events: none;
  backdrop-filter: blur(8px);
  border: 1px solid var(--border);
  z-index: 2;
}

.demo-fps {
  position: absolute;
  top: 0.85rem;
  right: 0.85rem;
  font-size: 0.64rem;
  font-family: var(--mono);
  color: var(--green);
  background: rgba(255,255,255,0.8);
  padding: 0.15rem 0.5rem;
  border-radius: 5px;
  pointer-events: none;
  backdrop-filter: blur(8px);
  border: 1px solid var(--border);
  z-index: 2;
}