.layout-accordion {
  display: grid;
  grid-template-columns: 320px 1fr 260px;
}

.sidebar-combined { display: flex; flex-direction: column; }

.sidebar-divider {
  height: 1px;
  background: var(--border);
  margin: 12px 0;
}

.sidebar-modes-title {
  font-size: 12px;
  font-weight: 700;
  color: var(--muted);
  margin-bottom: 8px;
}

.accordion details {
  border: 1px solid var(--border);
  border-radius: 8px;
  margin-bottom: 6px;
  background: #fafcff;
}

.accordion summary {
  cursor: pointer;
  padding: 8px 10px;
  font-size: 12px;
  font-weight: 600;
  list-style: none;
}

.accordion summary::-webkit-details-marker { display: none; }

.accordion .acc-body { padding: 0 6px 8px; }

.editor-mock { flex: 1; min-height: 360px; }