.wcb-format{display:grid;grid-template-columns:1fr 1.35fr;gap:8px;margin-top:8px}
.wcb-format button{min-height:42px;border:1px solid #cbd9e8;border-radius:10px;background:#f5f8fc;color:#49627d;font:850 11px/1.2 system-ui;cursor:pointer}
.wcb-format button.is-active{border-color:#1674d1;background:#0a315c;color:#fff;box-shadow:0 7px 16px #0a315c26}
.wcb-preview canvas.is-detailed{width:min(100%,820px)}