.ask-challenge{margin-top:12px;background:var(--paper,#fff);color:var(--ink,#0f172a);border:2px solid var(--ink,#0f172a);border-radius:16px;box-shadow:var(--pop-sm,2px 2px 0 #0f172a);padding:14px 14px 12px}.ask-challenge-head{display:flex;flex-wrap:wrap;align-items:center;gap:8px}.ask-challenge-title{font:800 16px/1.3 var(--fd,'Plus Jakarta Sans',Inter,sans-serif)}.ask-challenge-chip{background:#f59e0b;color:#0f172a;border:2px solid #0f172a;border-radius:999px;font-size:12px;font-weight:700;line-height:1.2;padding:2px 8px}.ask-challenge-marks{color:var(--ink-2,#334155);font-size:13px}.ask-challenge-stem{margin:12px 0 8px;font-size:1.05rem}.ask-challenge-rule{margin:0;color:var(--ink-2,#334155);font-size:13px}.ask-challenge-input{display:block;width:100%;box-sizing:border-box;margin-top:10px;min-height:72px;border:2px solid var(--ink,#0f172a);border-radius:12px;padding:8px 10px;background:var(--canvas,#fff8ec);color:inherit;font:inherit;resize:vertical}.ask-challenge-actions,.ask-challenge-follow{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}.ask-challenge button{border:2px solid var(--ink,#0f172a);background:var(--paper,#fff);color:inherit;border-radius:999px;padding:6px 12px;font-weight:700;cursor:pointer;box-shadow:var(--pop-sm,2px 2px 0 #0f172a)}.ask-challenge button[data-act="check"]{background:#f59e0b;color:#0f172a}.ask-challenge button:disabled{cursor:default;opacity:0.7}.ask-challenge-hint,.ask-challenge-verdict,.ask-challenge-score{margin:8px 0 0}.ask-challenge-solution{margin-top:6px}.ask-challenge-verdict{font-weight:700}.ask-challenge-timer{margin-left:auto;font:700 14px/1 ui-monospace,SFMono-Regular,Menlo,monospace;border:2px solid var(--ink,#0f172a);border-radius:999px;padding:3px 9px}.ask-challenge-timer.is-low{background:#fecaca;color:#7f1d1d}.ask-challenge-options{display:grid;gap:8px;margin-top:10px}.ask-challenge .ask-challenge-option{display:flex;align-items:center;gap:12px;width:100%;text-align:left;border-radius:14px;padding:8px 12px}.ask-challenge-letter{display:inline-flex;align-items:center;justify-content:center;flex:none;width:30px;height:30px;border:2px solid var(--ink,#0f172a);border-radius:50%;font-weight:800}.ask-challenge .ask-challenge-option.is-picked{background:#fde68a}.ask-challenge .ask-challenge-option.is-right{background:#bbf7d0;color:#14532d;opacity:1}.ask-challenge .ask-challenge-option.is-wrong{background:#fecaca;color:#7f1d1d;opacity:1}.ask-challenge-link{display:inline-block;margin-top:8px;font-weight:700;color:inherit;text-decoration:underline}@media (max-width:520px){.ask-challenge-actions,.ask-challenge-follow{flex-direction:column}.ask-challenge button,.ask-challenge-input{width:100%}}