.place-value-builder{max-width:720px;min-width:0;margin:14px auto;padding:14px;border:1px solid #91b3b4;border-radius:12px}
.place-value-builder legend{font-weight:700}
.place-value-builder svg{display:block;width:100%;max-width:520px;height:auto;max-height:none!important;margin:12px auto}
.pv-actions{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(210px,100%),1fr));gap:8px}
.pv-actions button{min-height:48px;white-space:normal}
.pv-jump-inputs{display:flex;gap:16px;flex-wrap:wrap}
.pv-jump-inputs label{display:flex;gap:8px;align-items:center}
.pv-jump-inputs input{width:5rem}
.place-value-builder button:focus-visible{outline:3px solid #b04b24;outline-offset:3px}
@media(max-width:440px){.place-value-builder{padding:10px}}