/* Three.js-style attribution — shared across standalone demos */
.demo-attribution {
  position: fixed;
  bottom: 12px;
  left: 12px;
  z-index: 1000;
  max-width: min(22rem, calc(100vw - 24px));
  padding: 8px 11px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 4px;
  background: rgba(0, 0, 0, 0.38);
  backdrop-filter: blur(6px);
  color: rgba(255, 255, 255, 0.72);
  font: 400 12px/1.45 system-ui, -apple-system, sans-serif;
  letter-spacing: 0.01em;
}

.demo-attribution a {
  color: rgba(255, 255, 255, 0.9);
  text-decoration: none;
}

.demo-attribution a:hover {
  color: #fff;
  text-decoration: underline;
}

.demo-attribution-title {
  margin: 0 0 4px;
  font-size: 12px;
}

.demo-attribution-credits {
  margin: 0 0 6px;
  font-size: 11px;
  line-height: 1.4;
  color: rgba(255, 255, 255, 0.58);
}

.demo-attribution-credits a {
  color: rgba(200, 220, 255, 0.92);
}

.demo-attribution-source {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  color: rgba(255, 255, 255, 0.78);
}

.demo-attribution-icon {
  font-family: ui-monospace, 'Cascadia Code', 'Segoe UI Mono', monospace;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: -0.04em;
  opacity: 0.85;
}

@media (max-width: 640px) {
  .demo-attribution {
    bottom: auto;
    top: 48px;
    left: 12px;
    max-width: calc(100vw - 24px);
  }
}