/**
 * A5.5 — SectionBlock / SectionItem (plain CSS, --canvas-* tokens).
 * Load after tokens.css. Class prefix: canvas-section-*
 */

.canvas-section-block {
  display: flex;
  flex-direction: column;
  gap: var(--canvas-space-l);
  box-sizing: border-box;
  width: 100%;
  color: var(--canvas-text-primary);
  font-family: var(--canvas-font-body);
}

.canvas-section-block__item {
  display: flex;
  flex-direction: column;
  gap: var(--canvas-space-l);
  width: 100%;
}

.canvas-section-block__header {
  display: flex;
  margin: 0;
}

.canvas-section-block__trigger {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: var(--canvas-space-s);
  width: 100%;
  flex: 1;
  padding: var(--canvas-space-m) 0 var(--canvas-space-xs) 0;
  border: none;
  background: transparent;
  color: var(--canvas-text-primary);
  font-family: var(--canvas-font-heading, var(--canvas-font-body));
  font-size: var(--canvas-font-size-md);
  font-weight: var(--canvas-font-weight-medium);
  text-align: left;
  cursor: pointer;
  min-height: var(--canvas-touch-target-min, 44px);
}

.canvas-section-block__trigger:focus-visible {
  outline: var(--canvas-focus-ring-width) solid var(--canvas-focus-ring);
  outline-offset: var(--canvas-focus-ring-offset);
}

.canvas-section-block__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  border-radius: var(--canvas-radius-s, 4px);
  border: 1px solid var(--canvas-border-default);
  background: var(--canvas-surface-elevated);
  color: var(--canvas-text-secondary);
  transition: transform var(--canvas-motion-duration-default, 200ms)
    var(--canvas-motion-ease, ease);
}

.canvas-section-block__trigger[data-state="open"] .canvas-section-block__icon {
  transform: rotate(90deg);
}

.canvas-section-block__trigger-text {
  flex: 1;
}

.canvas-section-block__content {
  display: flex;
  flex-direction: column;
  gap: var(--canvas-space-xl);
  width: 100%;
  padding: 0 0 0 28px;
  box-sizing: border-box;
}

.canvas-section-block__content[data-state="closed"],
.canvas-section-block__content[hidden] {
  display: none;
}

/* Non-foldable / SectionItem static layout */
.canvas-section-v2,
.canvas-section-item {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--canvas-space-xl);
  width: 100%;
  margin-top: var(--canvas-space-m);
  box-sizing: border-box;
}

.canvas-section-v2__header {
  display: flex;
  align-items: center;
  gap: var(--canvas-space-s);
  margin-bottom: var(--canvas-space-2xs);
}

.canvas-section-v2__trigger {
  font-family: var(--canvas-font-heading, var(--canvas-font-body));
  font-size: var(--canvas-font-size-md);
  font-weight: var(--canvas-font-weight-medium);
  color: var(--canvas-text-primary);
}

.canvas-section-v2__content {
  display: flex;
  flex-direction: column;
  gap: var(--canvas-space-xl);
  width: 100%;
}

@media (prefers-reduced-motion: reduce) {
  .canvas-section-block__icon {
    transition: none;
  }
}