.fractal-side-panel-overlay {
  position: fixed;
  inset: 0;
  display: flex;
  justify-content: flex-end;
  background: color-mix(in srgb, var(--fg-primary) 16%, transparent);
  animation: fractal-side-panel-overlay-in 180ms ease-out both;
}

.fractal-side-panel {
  display: flex;
  width: min(100vw, 540px);
  height: 100%;
  flex-direction: column;
  border-left: 1px solid var(--border-subtle);
  background: var(--bg-canvas);
  box-shadow: var(--shadow-lg);
  animation: fractal-side-panel-in 180ms cubic-bezier(0.16, 1, 0.3, 1) both;
}

.fractal-side-panel__header {
  display: flex;
  min-height: 72px;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-5) var(--space-6) var(--space-4);
}

.fractal-side-panel__body { min-height: 0; flex: 1; overflow: auto; padding: var(--space-2) var(--space-6) var(--space-6); }
.fractal-side-panel__footer { display: flex; justify-content: flex-end; gap: var(--space-2); padding: var(--space-4) var(--space-6); border-top: 1px solid var(--border-subtle); }

@keyframes fractal-side-panel-overlay-in { from { opacity: 0; } to { opacity: 1; } }
@keyframes fractal-side-panel-in { from { transform: translateX(100%); } to { transform: translateX(0); } }

@media (prefers-reduced-motion: reduce) {
  .fractal-side-panel-overlay,
  .fractal-side-panel { animation-duration: 0.01ms; }
}