.quiznext-wrap *,.quiznext-wrap *::before,.quiznext-wrap *::after{box-sizing:border-box}.quiznext-wrap{--qn-primary:#2563eb;--qn-primary-h:#1d4ed8;--qn-success:#16a34a;--qn-error:#dc2626;--qn-warn:#d97706;--qn-bg:#f8fafc;--qn-card:#ffffff;--qn-border:#e2e8f0;--qn-text:#1e293b;--qn-muted:#64748b;--qn-radius:12px;--qn-shadow:0 4px 24px rgba(0,0,0,.08);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;color:var(--qn-text);max-width:720px;margin:0 auto}.quiznext-wrap.qn-style-vibrant{--qn-primary:#7c3aed;--qn-primary-h:#6d28d9;--qn-bg:#faf5ff}.quiznext-wrap.qn-style-minimal{--qn-shadow:0 1px 4px rgba(0,0,0,.06);--qn-radius:6px}.quiznext-error{color:#dc2626;border:1px solid #fca5a5;background:#fef2f2;padding:12px 16px;border-radius:8px}.qn-user-form{background:var(--qn-card);border:1px solid var(--qn-border);border-radius:var(--qn-radius);padding:28px;box-shadow:var(--qn-shadow)}.qn-user-form h2{margin-top:0;font-size:20px}.qn-form-group{margin-bottom:16px}.qn-form-group label{display:block;font-weight:600;margin-bottom:6px;font-size:14px}.qn-form-group input{width:100%;padding:10px 14px;border:1.5px solid var(--qn-border);border-radius:8px;font-size:15px;outline:none;transition:border-color .15s}.qn-form-group input:focus{border-color:var(--qn-primary)}.qn-quiz-container{background:var(--qn-bg);border-radius:var(--qn-radius);padding:8px 0}.qn-progress-bar-wrap{height:6px;background:var(--qn-border);border-radius:99px;overflow:hidden;margin-bottom:20px}.qn-progress-bar-fill{height:100%;background:var(--qn-primary);border-radius:99px;transition:width .4s ease}.qn-progress-label{font-size:12px;color:var(--qn-muted);text-align:right;margin-top:4px;margin-bottom:16px}.qn-timer{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--qn-text);background:var(--qn-card);border:1.5px solid var(--qn-border);border-radius:8px;padding:6px 14px;margin-bottom:16px;transition:color .2s,border-color .2s}.qn-timer.qn-timer-warning{color:var(--qn-warn);border-color:var(--qn-warn)}.qn-timer.qn-timer-critical{color:var(--qn-error);border-color:var(--qn-error);animation:qn-pulse .6s ease infinite alternate}@keyframes qn-pulse{from{opacity:1}to{opacity:.6}}.qn-question-card{background:var(--qn-card);border:1px solid var(--qn-border);border-radius:var(--qn-radius);padding:24px;box-shadow:var(--qn-shadow);animation:qn-slide-in .25s ease}@keyframes qn-slide-in{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.qn-question-text{font-size:17px;font-weight:600;margin:0 0 20px;line-height:1.5}.qn-options{display:flex;flex-direction:column;gap:10px;margin-bottom:24px}.qn-option{display:flex;align-items:center;gap:12px;padding:13px 16px;border:2px solid var(--qn-border);border-radius:10px;cursor:pointer;transition:border-color .15s,background .15s,transform .1s;user-select:none}.qn-option:hover{border-color:var(--qn-primary);background:#eff6ff;transform:translateX(2px)}.qn-option.qn-selected{border-color:var(--qn-primary);background:#eff6ff}.qn-option.qn-correct{border-color:var(--qn-success);background:#f0fdf4}.qn-option.qn-wrong{border-color:var(--qn-error);background:#fef2f2}.qn-option.qn-disabled{cursor:default}.qn-option.qn-disabled:hover{transform:none}.qn-option-indicator{width:20px;height:20px;border:2px solid var(--qn-border);border-radius:50%;flex-shrink:0;display:flex;align-items:center;justify-content:center;font-size:11px;transition:border-color .15s,background .15s}.qn-option.qn-multiple .qn-option-indicator{border-radius:4px}.qn-option.qn-selected .qn-option-indicator{border-color:var(--qn-primary);background:var(--qn-primary);color:#fff}.qn-option.qn-correct .qn-option-indicator{border-color:var(--qn-success);background:var(--qn-success);color:#fff}.qn-option.qn-wrong .qn-option-indicator{border-color:var(--qn-error);background:var(--qn-error);color:#fff}.qn-option-text{font-size:15px;line-height:1.4}.qn-explanation{margin-top:16px;padding:14px 16px;background:#fefce8;border:1px solid #fde68a;border-radius:8px;font-size:14px;line-height:1.5;animation:qn-fade-in .3s ease}.qn-explanation strong{display:block;margin-bottom:4px}@keyframes qn-fade-in{from{opacity:0}to{opacity:1}}.qn-navigation{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-top:8px}.qn-btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:11px 22px;border:none;border-radius:8px;font-size:15px;font-weight:600;cursor:pointer;transition:background .15s,transform .1s,opacity .15s;text-decoration:none}.qn-btn:hover{transform:translateY(-1px)}.qn-btn:active{transform:none}.qn-btn:disabled{opacity:.5;cursor:not-allowed;transform:none}.qn-btn-primary{background:var(--qn-primary);color:#fff}.qn-btn-primary:hover{background:var(--qn-primary-h)}.qn-btn-secondary{background:var(--qn-border);color:var(--qn-text)}.qn-btn-secondary:hover{background:#cbd5e1}.qn-btn-ghost{background:#fff0;color:var(--qn-primary)}.qn-result-screen{background:var(--qn-card);border:1px solid var(--qn-border);border-radius:var(--qn-radius);padding:32px 28px;box-shadow:var(--qn-shadow);text-align:center;animation:qn-slide-in .3s ease}.qn-result-emoji{font-size:56px;margin-bottom:12px}.qn-result-message{font-size:22px;font-weight:700;margin:0 0 8px}.qn-result-sub{color:var(--qn-muted);margin-bottom:24px;font-size:15px}.qn-score-circle{width:120px;height:120px;border-radius:50%;border:6px solid var(--qn-primary);display:flex;flex-direction:column;align-items:center;justify-content:center;margin:0 auto 24px}.qn-score-circle.qn-passed{border-color:var(--qn-success)}.qn-score-circle.qn-failed{border-color:var(--qn-error)}.qn-score-pct{font-size:30px;font-weight:700;line-height:1}.qn-score-pts{font-size:12px;color:var(--qn-muted)}.qn-result-stats{display:flex;justify-content:center;gap:24px;margin-bottom:28px}.qn-result-stat{text-align:center}.qn-result-stat-val{font-size:20px;font-weight:700}.qn-result-stat-lbl{font-size:12px;color:var(--qn-muted)}.qn-review{text-align:left;margin-top:28px}.qn-review h3{font-size:16px;margin-bottom:14px}.qn-review-item{border:1px solid var(--qn-border);border-radius:10px;padding:16px;margin-bottom:12px;font-size:14px}.qn-review-item.qn-correct{border-color:#86efac;background:#f0fdf4}.qn-review-item.qn-wrong{border-color:#fca5a5;background:#fef2f2}.qn-review-q{font-weight:600;margin-bottom:8px}.qn-review-answers{font-size:13px;color:var(--qn-muted)}.qn-review-answers span{display:inline-block;margin-right:12px}.qn-review-expl{margin-top:8px;padding-top:8px;border-top:1px solid var(--qn-border);font-style:italic;color:#555}.qn-leaderboard{margin-top:28px;text-align:left}.qn-leaderboard h3{font-size:16px;margin-bottom:12px}.qn-lb-row{display:flex;align-items:center;gap:12px;padding:10px 14px;border-bottom:1px solid var(--qn-border);font-size:14px}.qn-lb-row:last-child{border-bottom:none}.qn-lb-rank{font-weight:700;width:24px;flex-shrink:0}.qn-lb-name{flex:1}.qn-lb-score{font-weight:600}.qn-lb-time{color:var(--qn-muted);font-size:12px}.qn-result-actions{display:flex;justify-content:center;gap:12px;flex-wrap:wrap;margin-top:24px}.qn-loading{text-align:center;padding:48px;color:var(--qn-muted)}.qn-spinner{display:inline-block;width:32px;height:32px;border:3px solid var(--qn-border);border-top-color:var(--qn-primary);border-radius:50%;animation:qn-spin .7s linear infinite;margin-bottom:12px}@keyframes qn-spin{to{transform:rotate(360deg)}}@media (max-width:600px){.qn-question-card,.qn-result-screen,.qn-user-form{padding:18px 16px}.qn-result-stats{gap:16px}.qn-score-circle{width:100px;height:100px}.qn-score-pct{font-size:24px}}