/* HYPERPART: switch */
/*
 * On/off control — progressive enhancement over a native checkbox.
 * Root: label.dz-switch > input[type=checkbox][data-dz-switch] + span.dz-switch__track
 * Thumb is the track's ::after. State is the checkbox's .checked (DOM), never JS.
 *
 * PLACEHOLDER shell for shadcn parity (HMC-031). Token-only; no controller
 * required — native checkbox semantics + keyboard already work.
 */

.dz-switch {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  cursor: pointer;
  user-select: none;
  font-size: var(--text-sm);
  color: var(--colour-text);
}

.dz-switch input[data-dz-switch] {
  /* Visually hide the checkbox but keep it focusable / AT-accessible */
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.dz-switch__track {
  position: relative;
  display: inline-block;
  width: 2.5rem;
  height: 1.375rem;
  flex: none;
  border-radius: var(--radius-full);
  background: var(--colour-surface-muted);
  border: 1px solid var(--colour-border);
  transition:
    background var(--duration-fast) var(--ease-out),
    border-color var(--duration-fast) var(--ease-out);
}

.dz-switch__track::after {
  content: "";
  position: absolute;
  top: 0.125rem;
  left: 0.125rem;
  width: 1rem;
  height: 1rem;
  border-radius: var(--radius-full);
  background: var(--colour-surface);
  box-shadow: var(--shadow-sm, 0 1px 2px color-mix(in oklab, var(--colour-text) 12%, transparent));
  transition: transform var(--duration-fast) var(--ease-out);
}

.dz-switch input[data-dz-switch]:checked + .dz-switch__track {
  background: var(--colour-brand);
  border-color: var(--colour-brand);
}

.dz-switch input[data-dz-switch]:checked + .dz-switch__track::after {
  transform: translateX(1.125rem);
  background: var(--colour-brand-contrast, var(--colour-surface));
}

.dz-switch input[data-dz-switch]:focus-visible + .dz-switch__track {
  outline: 2px solid var(--colour-brand);
  outline-offset: 2px;
}

.dz-switch input[data-dz-switch]:disabled + .dz-switch__track {
  opacity: 0.5;
  cursor: not-allowed;
}

.dz-switch:has(input[data-dz-switch]:disabled) {
  cursor: not-allowed;
  opacity: 0.7;
}

@media (prefers-reduced-motion: reduce) {
  .dz-switch__track,
  .dz-switch__track::after {
    transition: none;
  }
}