.sqi-question { margin-bottom: 1em; padding: .6em; border: 1px solid #eee; border-radius: 6px; }
.sqi-question.sqi-correct { border-color: #2ecc71; background: #ecf9f0; }
.sqi-question.sqi-wrong { border-color: #e74c3c; background: #fff4f4; }
.sqi-options { list-style: none; padding-left: 0; }
.sqi-options li { margin: .4em 0; }
.sqi-explanation { margin-top: .5em; font-size: .95em; color: #333; }
.sqi-result { margin-top: 1em; padding: .6em; border: 1px solid #ddd; border-radius: 6px; background: #fafafa; }