*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--primary: #4f46e5;--success-solid: #15a34a;--error-solid: #dc2626;--bg: #eef0f3;--surface: #ffffff;--surface-2: #f4f5f7;--text: #2b2f38;--text-soft: #4a4f5a;--muted: #707784;--border: #e4e6ec;--primary-l: #ecedfd;--primary-text: #4338ca;--success-l: #e7f6ec;--success-text: #157a3a;--error-l: #fbeaea;--error-text: #b42318;--radius-sm: 12px;--radius-md: 16px;--radius-lg: 22px;--shadow: 0 1px 2px rgba(17,24,39,.06), 0 4px 16px rgba(17,24,39,.05);--ch1: #3b82f6;--ch2: #8b5cf6;--ch3: #e0529c;--ch4: #e0913b;--ch5: #14a37f}@media (prefers-color-scheme: dark){:root:not([data-theme]){--bg: #15171c;--surface: #1e2127;--surface-2: #262a31;--text: #e6e8ec;--text-soft: #c4c8d0;--muted: #939aa6;--border: #2f343c;--primary: #6f72f0;--primary-l: #282b4d;--primary-text: #b3baff;--success-l: #15301f;--success-text: #56d77f;--error-l: #34191a;--error-text: #f98a8a;--shadow: 0 1px 2px rgba(0,0,0,.4), 0 6px 20px 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.tf-emoji{font-size:1.9rem}.tf-btn.selected-tf{border-color:var(--primary);background:var(--primary-l);color:var(--primary-text)}.tf-btn.correct{border-color:var(--success-solid);background:var(--success-l);color:var(--success-text)}.tf-btn.wrong{border-color:var(--error-solid);background:var(--error-l);color:var(--error-text)}.ms-hint{font-size:.8rem;color:var(--muted);margin-bottom:12px}.checkbox-opt{background:var(--surface);border:1.5px solid var(--border);border-radius:var(--radius-sm);padding:13px 14px;cursor:pointer;display:flex;align-items:flex-start;gap:11px;transition:border-color .15s,background .15s;width:100%;text-align:left;font-size:.92rem;line-height:1.5;color:var(--text)}.checkbox-opt:disabled{cursor:default}.checkbox-opt.checked{border-color:var(--primary);background:var(--primary-l)}.checkbox-opt.correct{border-color:var(--success-solid);background:var(--success-l)}.checkbox-opt.wrong{border-color:var(--error-solid);background:var(--error-l)}.checkbox-opt.missed{border-color:var(--success-solid);background:var(--success-l);opacity:.55}.cb-box{flex-shrink:0;width:23px;height:23px;border-radius:7px;border:1.5px solid var(--border);display:flex;align-items:center;justify-content:center;font-size:.75rem;color:var(--muted);margin-top:1px;transition:background .15s,border-color .15s,color .15s}.checkbox-opt.checked .cb-box{background:var(--primary);border-color:var(--primary);color:#fff}.checkbox-opt.correct .cb-box{background:var(--success-solid);border-color:var(--success-solid);color:#fff}.checkbox-opt.wrong 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.sc-lbl{font-size:.65rem;font-weight:600;opacity:.9;letter-spacing:.5px;text-transform:uppercase;margin-top:3px}.result-summary{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-md);box-shadow:var(--shadow);padding:6px 16px;margin-bottom:20px}.summary-row{display:flex;justify-content:space-between;align-items:center;padding:12px 0;font-size:.9rem;border-bottom:1px solid var(--border)}.summary-row:last-child{border-bottom:none}.summary-row .sr-label{color:var(--muted)}.summary-row .sr-value{font-weight:700;color:var(--text)}.summary-row .sr-value.good{color:var(--success-text)}.summary-row .sr-value.bad{color:var(--error-text)}.summary-note{color:var(--success-text);font-size:.84rem;font-weight:600}.result-actions{display:flex;flex-direction:column;gap:10px}@keyframes slideUp{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.slide-up{animation:slideUp .25s ease forwards}