.remaining-root{line-height:1.6}.remaining-root .r3-narrow{max-width:720px;margin:auto}.remaining-root .r3-progress{display:flex;flex-wrap:wrap;gap:8px}.remaining-root .r3-progress button{min-width:48px}.remaining-root .r3-option{display:block;text-align:left;width:100%;margin:12px 0}.remaining-root .r3-answer-counts{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}.remaining-root .r3-answer-counts div{padding:10px;border:1px solid #cbd5e1;border-radius:8px}.remaining-root .r3-answer-counts dt{font-size:16px}.remaining-root .r3-answer-counts dd{margin:0;font-weight:700;font-size:22px}.remaining-root details{margin:16px 0}.remaining-root summary{min-height:48px;padding:10px;cursor:pointer}.remaining-root iframe{max-width:100%;border:1px solid #94a3b8}.remaining-root .n16-error{font-size:17px}.remaining-root .r3-current{border:2px solid #2458d6}.remaining-root a{min-height:48px;display:inline-flex;align-items:center}.remaining-root .r3-embed-code{font-family:monospace;min-height:180px}.remaining-root .r3-result-code{font-size:28px;font-weight:700}.remaining-root .r3-review-row{padding:12px;border-bottom:1px solid #cbd5e1}.remaining-root .r3-review-row button{margin-top:8px}
@media(max-width:480px){.remaining-root .r3-answer-counts{grid-template-columns:repeat(2,minmax(0,1fr))}}