.builder-shell{display:grid;grid-template-columns:minmax(315px,420px) minmax(430px,1fr);gap:20px;align-items:start}.builder-editor{position:sticky;top:82px}.builder-preview{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.builder-card{border:1px solid var(--line);border-radius:10px;background:#fff;padding:12px;cursor:grab}.builder-card.full{grid-column:1/-1}.builder-card.dragging{opacity:.4}.builder-card header{display:flex;justify-content:space-between;gap:10px}.builder-actions{display:flex;gap:6px;align-items:center}.builder-actions form{margin:0}.module-import-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.module-import-grid .full{grid-column:1/-1}.csv-column-list{columns:2;max-height:260px;overflow:auto}.layout-full{grid-column:1/-1}@media(max-width:900px){.builder-shell,.module-import-grid{grid-template-columns:1fr}.builder-editor{position:static}}@media(max-width:620px){.builder-preview{grid-template-columns:1fr}.builder-card{grid-column:1/-1}.csv-column-list{columns:1}}