/* Challenge (off by default; shown only if SIGNUP_CHALLENGE_ENABLED) */
.challenge{padding:18px 0 4px;text-align:center}
.challenge .prompt{margin:0 0 14px;font-family:'Fredoka';font-weight:600;font-size:16px}
.challenge .prompt strong{color:var(--berry)}
.challenge-icons{display:flex;gap:14px;justify-content:center}
.challenge-icon{background:#fff;border:3px solid var(--cream-d);border-radius:16px;padding:10px;width:78px;height:78px;cursor:pointer;transition:border-color .15s,box-shadow .15s}
.challenge-icon:hover{border-color:var(--sun)}
.challenge-icon.selected{border-color:var(--mint);box-shadow:0 0 0 3px rgba(47,208,166,.25)}
.challenge-icon svg{width:100%;height:100%;display:block}
.sd1{width:54px;height:54px;background:var(--sun);left:8%;top:120px}
.sd2{width:34px;height:34px;background:var(--mint);right:10%;top:200px;animation-delay:-2s}
.sd3{width:40px;height:40px;background:var(--grape);right:14%;bottom:120px;animation-delay:-1s}