.quiz-container{background:var(--surface);border:1px solid var(--border);border-radius:20px;max-width:800px;margin:0 auto;padding:2rem;box-shadow:0 8px 32px #0000000d}.quiz-header{border-bottom:1px solid var(--glass-border);justify-content:space-between;align-items:center;margin-bottom:1.5rem;padding-bottom:1rem;display:flex}.quiz-progress{color:var(--text-muted);font-size:1rem;font-weight:500}.quiz-errors{color:#ef4444;font-size:1rem;font-weight:600}.quiz-question-text{color:var(--text-primary);margin-bottom:1.5rem;font-size:1.3rem;font-weight:700;line-height:1.4}.quiz-options{flex-direction:column;gap:1rem;display:flex}.quiz-option{background:var(--surface);border:2px solid var(--border);cursor:pointer;text-align:left;color:var(--text);border-radius:12px;padding:1rem 1.5rem;font-size:1.1rem;transition:all .2s;box-shadow:0 2px 4px #00000005}.quiz-option:hover:not(:disabled){background:var(--bg);border-color:var(--primary-color);transform:translateY(-2px);box-shadow:0 4px 12px #2563eb1a}.quiz-option.correct{color:#166534;background:#22c55e1a;border-color:#22c55e}.quiz-option.wrong{color:#991b1b;background:#ef44441a;border-color:#ef4444}@media (prefers-color-scheme:dark){.quiz-option.correct{color:#4ade80}.quiz-option.wrong{color:#f87171}}.quiz-option:disabled{cursor:default}.quiz-feedback{border:1px solid var(--glass-border);background:#ffffff08;border-radius:12px;margin-top:1.5rem;padding:1.5rem;animation:.3s fadeIn}.quiz-explanation{color:var(--text-secondary);margin-bottom:1rem;font-size:1.05rem;line-height:1.5}.btn-next{width:100%}.quiz-result{text-align:center;padding:2rem 0}.quiz-result-title{color:var(--text-primary);margin-bottom:1rem;font-size:2rem;font-weight:700}.quiz-result-score{color:var(--text-secondary);margin-bottom:2rem;font-size:1.5rem}.quiz-result-message{color:var(--text-primary);margin-bottom:2.5rem;font-size:1.2rem;line-height:1.6}.quiz-result-actions{justify-content:center;gap:1rem;display:flex}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@media (max-width:640px){.quiz-container{padding:1.5rem}.quiz-question-text{font-size:1.2rem}.quiz-option{padding:.8rem 1.2rem;font-size:1rem}.quiz-result-actions{flex-direction:column}}