Nihongo Challenge N3 -

// オプションクリックリスナー const optionDivs = document.querySelectorAll('.option-btn'); optionDivs.forEach(btn => btn.addEventListener('click', (e) => if (answerLocked) return; const idxAttr = btn.getAttribute('data-opt-index'); if (idxAttr !== null) const idxNum = parseInt(idxAttr, 10); if (!isNaN(idxNum)) evaluateAndLock(idxNum, q.correct, q.explanation); ); );

.restart-btn background: #e6d5b3; color: #5e3a22; border: none; margin-top: 1rem; padding: 0.7rem; border-radius: 40px; font-weight: 600; width: 100%; cursor: pointer; font-family: inherit; transition: 0.1s; nihongo challenge n3

.option-btn:hover:not(.disabled-opt) background: #fff3e0; border-color: #c9aa6f; transform: scale(0.99); if (answerLocked) return

// リスタートボタン (常に有効) const restartBtn = document.getElementById('restartButton'); if (restartBtn) restartBtn.addEventListener('click', () => initGame(); ); const idxAttr = btn.getAttribute('data-opt-index')

.score-box, .question-counter background: white; padding: 0.3rem 1rem; border-radius: 40px; box-shadow: inset 0 0 0 1px #ede3c8, 0 2px 4px rgba(0,0,0,0.02);