:root{--q-bg: #f0f4ff;--q-card: #ffffff;--q-primary: #2563eb;--q-primary-dark: #1d4ed8;--q-text: #1e293b;--q-muted: #64748b;--q-border: #e2e8f0;--q-radius: 16px}*{box-sizing:border-box;margin:0;padding:0}body{font-family:Segoe UI,system-ui,sans-serif;background:var(--q-bg);min-height:100vh}.quiz-shell{min-height:100vh;display:flex;flex-direction:column}.quiz-header{background:#fff;border-bottom:1px solid var(--q-border);padding:14px 24px}.quiz-brand{display:flex;align-items:center;gap:8px;font-weight:700;color:var(--q-text);text-decoration:none;font-size:1.05rem}.quiz-brand-icon{font-size:1.3rem}.quiz-main{flex:1;display:flex;align-items:flex-start;justify-content:center;padding:40px 16px 60px}.quiz-card{width:100%;max-width:620px;background:var(--q-card);border-radius:var(--q-radius);box-shadow:0 4px 32px #2563eb14,0 1px 4px #0000000a;padding:40px 36px}@media(max-width:600px){.quiz-card{padding:24px 18px}}.anim-in{animation:fadeUp .35s ease both}@keyframes fadeUp{0%{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}.quiz-pill{display:inline-flex;align-items:center;background:#eff6ff;color:var(--q-primary);border-radius:99px;padding:4px 14px;font-size:.8rem;font-weight:600;margin-bottom:16px}.quiz-title{font-size:1.9rem;font-weight:800;color:var(--q-text);line-height:1.25;margin-bottom:12px}.quiz-desc{color:var(--q-muted);line-height:1.6;margin-bottom:16px}.quiz-meta{display:flex;gap:20px;color:var(--q-muted);font-size:.85rem;margin-bottom:28px}.quiz-author{color:var(--q-muted);font-size:.85rem;margin-top:16px;text-align:center}.quiz-btn-primary{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--q-primary);color:#fff;border:none;border-radius:10px;padding:14px 28px;font-size:1rem;font-weight:600;cursor:pointer;transition:background .2s,transform .1s;width:100%}.quiz-btn-primary:hover:not(:disabled){background:var(--q-primary-dark);transform:translateY(-1px)}.quiz-btn-primary:disabled{opacity:.6;cursor:not-allowed}.quiz-btn-outline{background:transparent;border:2px solid var(--q-border);border-radius:10px;padding:12px 20px;font-size:.95rem;font-weight:600;color:var(--q-muted);cursor:pointer}.quiz-btn-outline:hover{border-color:var(--q-primary);color:var(--q-primary)}.quiz-progress-wrap{height:6px;background:var(--q-border);border-radius:99px;margin-bottom:8px;overflow:hidden}.quiz-progress-bar{height:100%;background:var(--q-primary);border-radius:99px;transition:width .3s ease}.quiz-progress-label{font-size:.8rem;color:var(--q-muted);margin-bottom:24px}.quiz-question-text{font-size:1.2rem;font-weight:700;color:var(--q-text);margin-bottom:20px;line-height:1.4}.quiz-options{display:flex;flex-direction:column;gap:10px;margin-bottom:28px}.quiz-option{display:flex;align-items:center;gap:12px;background:#f8fafc;border:2px solid var(--q-border);border-radius:12px;padding:14px 18px;font-size:.95rem;cursor:pointer;text-align:left;transition:border-color .15s,background .15s;color:var(--q-text)}.quiz-option:hover{border-color:var(--q-primary);background:#eff6ff}.quiz-option--selected{border-color:var(--q-primary);background:#eff6ff;font-weight:600;color:var(--q-primary)}.quiz-option-icon{font-size:1rem;color:var(--q-primary);flex-shrink:0}.quiz-nav{display:flex;align-items:center;gap:12px}.flex-grow-1{flex:1}.quiz-contact-form{display:flex;flex-direction:column;gap:12px;margin:20px 0}.quiz-input{border:2px solid var(--q-border);border-radius:10px;padding:13px 16px;font-size:.95rem;outline:none;transition:border-color .2s;width:100%}.quiz-input:focus{border-color:var(--q-primary)}.quiz-divider{text-align:center;color:var(--q-muted);font-size:.85rem;position:relative}.quiz-divider:before,.quiz-divider:after{content:"";position:absolute;top:50%;width:40%;height:1px;background:var(--q-border)}.quiz-divider:before{left:0}.quiz-divider:after{right:0}.quiz-error{color:#ef4444;font-size:.9rem;margin-bottom:10px}.quiz-privacy{color:var(--q-muted);font-size:.8rem;text-align:center;margin-top:12px}.quiz-score-ring{width:140px;height:140px;border-radius:50%;display:flex;align-items:center;justify-content:center;margin:0 auto}.quiz-score-num{font-size:2rem;font-weight:800;color:var(--q-text)}.quiz-details{margin:24px 0;display:flex;flex-direction:column;gap:10px}.quiz-detail-item{border-radius:10px;padding:12px 16px;font-size:.9rem}.quiz-detail--correct{background:#f0fdf4;border-left:4px solid #22c55e}.quiz-detail--wrong{background:#fff1f2;border-left:4px solid #ef4444}.quiz-detail-q{display:flex;gap:8px;align-items:flex-start;font-weight:500;color:var(--q-text)}.quiz-detail-icon--correct{color:#22c55e;flex-shrink:0}.quiz-detail-icon--wrong{color:#ef4444;flex-shrink:0}.quiz-detail-exp{color:var(--q-muted);font-size:.85rem;margin-top:6px;padding-left:22px}.quiz-cta-block{background:linear-gradient(135deg,#1e40af,#6d28d9);border-radius:16px;padding:28px;margin-top:28px;color:#fff;text-align:center}.quiz-cta-block h3{font-size:1.2rem;margin-bottom:8px}.quiz-cta-block p{opacity:.85;font-size:.9rem;margin-bottom:20px}.quiz-cta-block .quiz-btn-primary{background:#fff;color:var(--q-primary)}.quiz-cta-block .quiz-btn-primary:hover{background:#eff6ff}.spinner{width:16px;height:16px;border:2px solid rgba(255,255,255,.4);border-top-color:#fff;border-radius:50%;animation:spin .7s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}