.answer-options button{position:relative;padding:12px 46px 12px 16px;transition:background .18s,border-color .18s,transform .18s,box-shadow .18s}
.answer-options button.selected{background:linear-gradient(135deg,#3267e3,#168f79);border-color:#58d4b3;color:#fff;box-shadow:0 8px 22px rgba(50,103,227,.3);transform:translateY(-1px)}
.answer-options button.selected::after{content:"✓";position:absolute;right:15px;top:50%;transform:translateY(-50%);display:grid;place-items:center;width:25px;height:25px;border-radius:50%;background:rgba(255,255,255,.2);color:#fff;font-weight:900}
.answer-options button:active{transform:scale(.985)}
@media(prefers-reduced-motion:reduce){.answer-options button{transition:none}}