:root{--qh-primary:#4f46e5;--qh-primary-dark:#4338ca;--qh-primary-soft:#eef2ff;--qh-on-primary:#fff;--qh-accent:#f59e0b;--qh-accent-soft:#fff7e6;--qh-ok:#15803d;--qh-ok-soft:#e8f7ee;--qh-bad:#b91c1c;--qh-bad-soft:#fdecec;--qh-warn:#92400e;--qh-warn-soft:#fef3c7;--qh-text:#111827;--qh-muted:#4b5563;--qh-border:#e5e7eb;--qh-surface:#fff;--qh-bg:#f7f7fb;--qh-radius:16px;--qh-radius-sm:12px;--qh-shadow:0 1px 2px rgba(17,24,39,.06),0 4px 16px rgba(17,24,39,.05);--qh-focus:0 0 0 3px #fff,0 0 0 5px var(--qh-primary);--qh-font:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;--qh-space:16px 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20px;padding:0;margin:12px 0;color:var(--qh-muted)}.qh-stats strong{color:var(--qh-text);font-size:1.1rem;margin-right:2px}.qh-stats--big{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}.qh-stats--big li{background:var(--qh-surface);border:1px solid var(--qh-border);border-radius:var(--qh-radius-sm);padding:12px;text-align:center;display:flex;flex-direction:column}.qh-stats--big strong{font-size:1.5rem}.qh-bar{height:10px;border-radius:99px;background:var(--qh-primary-soft);overflow:hidden}.qh-bar span{display:block;height:100%;border-radius:99px;background:var(--qh-primary);transition:width .3s}.qh-progress-card__title{margin:0 0 10px;font-size:1.05rem;text-transform:uppercase;letter-spacing:.05em}.qh-register-prompt{background:var(--qh-primary-soft);border-color:#c7d2fe}.qh-register-prompt p{margin:0 0 12px}.qh-player{margin:16px 0 24px;scroll-margin-top:8px}.qh-player__title{font-size:1.4rem;margin:0 0 8px}.qh-player__resume{margin:12px 0 0;color:var(--qh-muted)}.qh-player__intro .qh-fav{margin:0 0 12px}.qh-fav[aria-pressed=true]{background:var(--qh-primary-soft)}.qh-quizbar{position:sticky;top:0;z-index:20;background:var(--qh-bg);padding:6px 0 10px;margin:0 0 12px}.qh-quizbar__row{display:flex;align-items:center;gap:8px;margin-bottom:8px}.qh-quizbar__info{flex:1;min-width:0;display:flex;justify-content:space-between;align-items:baseline;gap:8px}.qh-quizbar__title{font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.qh-quizbar__count{font-weight:700;color:var(--qh-primary);white-space:nowrap}.qh-timer{display:inline-flex;align-items:center;gap:4px;padding:4px 10px;border-radius:99px;background:var(--qh-surface);border:1px solid var(--qh-border);font-variant-numeric:tabular-nums;font-weight:600}.qh-timer.is-low{background:var(--qh-bad-soft);color:var(--qh-bad);border-color:var(--qh-bad)}.qh-question{background:var(--qh-surface);border:1px solid var(--qh-border);border-radius:var(--qh-radius);padding:20px;box-shadow:var(--qh-shadow)}.qh-question__num{margin:0 0 6px;color:var(--qh-muted);font-weight:600}.qh-question__oid{font-weight:400}.qh-question__text{font-size:clamp(1.25rem,4.8vw,1.6rem);line-height:1.35;margin:0 0 16px}.qh-question__text:focus{outline:none}.qh-question__figure{margin:0 0 16px}.qh-question__figure img{display:block;max-width:100%;height:auto;border-radius:var(--qh-radius-sm);border:1px solid var(--qh-border);background:#fff}.qh-answers{border:0;margin:0;padding:0;display:grid;gap:10px;min-width:0}.qh-answer{position:relative;display:flex;align-items:center;gap:12px;min-height:56px;padding:12px 14px;border:2px solid var(--qh-border);border-radius:var(--qh-radius-sm);background:var(--qh-surface);cursor:pointer;font-size:1.05rem;line-height:1.35;transition:border-color .12s,background-color .12s;-webkit-tap-highlight-color:transparent}@media(hover:hover){.qh-answer:hover{border-color:#a5b4fc}}.qh-answer 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