body { background-color: #f7f7fb; }
.card { box-shadow: 0 1px 3px rgba(0,0,0,.08); }
.timer-warning { color: #b02a37; font-weight: bold; }
.option-row.correct { background-color: #d1e7dd; }
.option-row.wrong { background-color: #f8d7da; }
.option-row.selected-marker::before { content: "➤ "; }