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40px;display:flex}.learn-stage{flex-direction:column;gap:22px;width:100%;max-width:820px;margin:0 auto;display:flex}.question-kind{letter-spacing:.08em;text-transform:uppercase;color:var(--text-subtle);font-size:.76rem;font-weight:700}.prompt-card{background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius-lg);min-height:150px;box-shadow:var(--shadow-sm);animation:prompt-in .22s var(--ease);flex-direction:column;justify-content:center;gap:10px;padding:26px;display:flex}.prompt-text{letter-spacing:-.01em;overflow-wrap:anywhere;font-size:clamp(1.15rem,1rem + .9vw,1.6rem);font-weight:640;line-height:1.35}.choice-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;display:grid}@media (width<=720px){.choice-grid{grid-template-columns:1fr}}.choice{text-align:left;border:2px solid var(--border);border-radius:var(--radius);background:var(--bg-elevated);width:100%;min-height:74px;color:var(--text);cursor:pointer;transition:border-color var(--speed) var(--ease), background var(--speed) var(--ease), transform var(--speed) var(--ease), opacity var(--speed) var(--ease);align-items:center;gap:12px;padding:14px 16px;font-size:.97rem;font-weight:500;line-height:1.4;display:flex}.choice[data-hovered],.choice:not([data-disabled]):hover{border-color:var(--accent);background:var(--bg-hover)}.choice[data-pressed]{transform:scale(.99)}.choice-key{border-radius:var(--radius-sm);border:1px solid var(--border-strong);background:var(--bg-inset);width:26px;height:26px;color:var(--text-muted);font-variant-numeric:tabular-nums;flex:none;place-items:center;font-size:.78rem;font-weight:700;display:grid}.choice-text{overflow-wrap:anywhere;flex:1}.choice[data-state=correct]{border-color:var(--success);background:var(--success-soft)}.choice[data-state=correct] .choice-key{border-color:var(--success);color:var(--success);background:0 0}.choice[data-state=incorrect]{border-color:var(--danger);background:var(--danger-soft)}.choice[data-state=incorrect] .choice-key{border-color:var(--danger);color:var(--danger);background:0 0}.choice[data-state=muted]{opacity:.5}.choice[data-disabled]{cursor:default}.choice-mark{flex:none;font-size:1.05rem;font-weight:700}.feedback-bar{border-radius:var(--radius);border:1px solid var(--border);background:var(--bg-elevated);box-shadow:var(--shadow-sm);animation:prompt-in .18s var(--ease);flex-wrap:wrap;align-items:center;gap:14px;padding:14px 18px;display:flex}.feedback-bar[data-correct=true]{border-color:var(--success-border);background:var(--success-soft)}.feedback-bar[data-correct=false]{border-color:var(--danger-border);background:var(--danger-soft)}.feedback-title{font-weight:700}.learn-footer{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;display:flex}.kbd{border:1px solid var(--border-strong);background:var(--bg-inset);min-width:20px;font-family:var(--font-mono);color:var(--text-muted);text-align:center;border-bottom-width:2px;border-radius:5px;padding:1px 6px;font-size:.74rem;display:inline-block}.summary{text-align:center;width:100%;max-width:620px;animation:prompt-in .24s var(--ease);flex-direction:column;gap:22px;margin:0 auto;display:flex}.summary-emoji{font-size:3rem;line-height:1}.summary-stats{grid-template-columns:repeat(3,1fr);gap:10px;display:grid}.stat{border-radius:var(--radius);border:1px solid var(--border);background:var(--bg-elevated);padding:14px 10px}.stat-value{font-variant-numeric:tabular-nums;font-size:1.5rem;font-weight:750;line-height:1.1}.stat-label{color:var(--text-muted);font-size:.78rem;font-weight:620}.stat[data-tone=mastered] .stat-value{color:var(--success)}.stat[data-tone=learning] .stat-value{color:var(--warning)}.summary-terms{text-align:left;flex-direction:column;gap:8px;display:flex}.summary-term{border-radius:var(--radius);border:1px solid var(--border);background:var(--bg-elevated);align-items:baseline;gap:10px;padding:10px 14px;font-size:.9rem;display:flex}.summary-term .marker{flex:none;font-weight:700}.summary-term[data-tone=missed] .marker{color:var(--danger)}.summary-term[data-tone=mastered] .marker{color:var(--success)}@keyframes prompt-in{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}