.quiz-card.enhanced{background:var(--s1);border:1px solid var(--border);border-radius:12px;padding:2rem;margin-bottom:2rem}.quiz-header{display:flex;flex-direction:column;gap:1rem;margin-bottom:1.5rem}.quiz-n{display:flex;align-items:center;justify-content:space-between;font-family:var(--mono);font-size:.7rem;color:var(--purple);text-transform:uppercase;letter-spacing:2px}.difficulty{padding:.2rem .6rem;border-radius:4px;font-size:.65rem;font-weight:600}.difficulty-easy{background:#4ade8026;color:var(--green)}.difficulty-medium{background:#fbbf2426;color:var(--yellow)}.difficulty-hard{background:#f8717126;color:var(--red)}.quiz-progress-bar{width:100%;height:4px;background:var(--s3);border-radius:2px;overflow:hidden}.quiz-progress-fill{height:100%;background:var(--cyan);transition:width .3s ease}.btn-hint{background:#fbbf241a;border:1px solid rgba(251,191,36,.3);color:var(--yellow);padding:.7rem 1.2rem;border-radius:8px;cursor:pointer;font-family:var(--mono);font-size:.85rem;font-weight:600;margin-top:1rem;transition:all .2s}.btn-hint:hover{background:#fbbf2426;border-color:var(--yellow)}.hint-box{background:#fbbf2414;border:1px solid rgba(251,191,36,.25);border-left:3px solid var(--yellow);border-radius:0 8px 8px 0;padding:1rem 1.2rem;margin-top:1rem;animation:slideDown .3s ease}.hint-label{font-family:var(--mono);font-size:.7rem;color:var(--yellow);text-transform:uppercase;letter-spacing:1.5px;margin-bottom:.5rem}.explanation-box{border-radius:0 8px 8px 0;padding:1rem 1.2rem;margin-top:1rem;animation:slideDown .3s ease}.explanation-box.correct{background:#4ade8014;border:1px solid rgba(74,222,128,.25);border-left:3px solid var(--green)}.explanation-box.incorrect{background:#f8717114;border:1px solid rgba(248,113,113,.25);border-left:3px solid var(--red)}.explanation-label{font-family:var(--mono);font-size:.75rem;font-weight:600;margin-bottom:.5rem}.explanation-box.correct .explanation-label{color:var(--green)}.explanation-box.incorrect .explanation-label{color:var(--red)}.related-link{display:inline-flex;align-items:center;gap:.4rem;margin-top:.8rem;color:var(--cyan);text-decoration:none;font-size:.85rem;font-weight:500;transition:opacity .2s}.related-link:hover{opacity:.8}.opt{width:100%;text-align:left;color:var(--text)}.opt:focus-visible{outline:2px solid var(--cyan);outline-offset:2px}.opt:disabled{cursor:default;opacity:1}.opt.correct{border-color:var(--green);background:#4ade801a;color:var(--green)}.opt.incorrect{border-color:var(--red);background:#f871711a;color:var(--red)}.opt.correct-answer{border-color:var(--green);background:#4ade800d;animation:pulse 1s ease}.quiz-navigation{display:flex;justify-content:space-between;gap:1rem;margin-top:1.5rem}.btn-nav{padding:.7rem 1.5rem;border-radius:8px;border:1px solid var(--border);background:var(--s2);color:var(--text);font-family:var(--mono);font-size:.85rem;font-weight:600;cursor:pointer;transition:all .2s}.btn-nav:hover:not(:disabled){background:var(--s3);border-color:var(--cyan)}.btn-nav.btn-primary{background:var(--cyan);color:var(--bg);border-color:var(--cyan)}.btn-nav.btn-primary:hover:not(:disabled){background:#1ab8d4}.btn-nav:disabled{opacity:.5;cursor:not-allowed}.quiz-results{text-align:center;padding:2rem}.results-title{font-size:2rem;font-weight:900;color:var(--text);margin-bottom:2rem}.score-display{margin:2rem 0}.score-main{font-family:var(--mono);font-size:5rem;font-weight:700;color:var(--cyan);line-height:1}.score-subtitle{font-size:1.2rem;color:var(--muted);margin-top:.5rem}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:1rem;margin:2rem 0}.stat-card{background:var(--s2);border:1px solid var(--border);border-radius:8px;padding:1.2rem}.stat-label{font-family:var(--mono);font-size:.7rem;color:var(--muted);text-transform:uppercase;letter-spacing:1px;margin-bottom:.5rem}.stat-value{font-family:var(--mono);font-size:1.5rem;font-weight:700;color:var(--text)}.feedback-message{background:var(--s2);border-radius:8px;padding:1.5rem;margin:2rem 0;font-size:1.05rem;line-height:1.6}.feedback-excellent{border:2px solid var(--green);color:var(--green)}.feedback-good{border:2px solid var(--cyan);color:var(--cyan)}.feedback-average{border:2px solid var(--yellow);color:var(--yellow)}.feedback-poor{border:2px solid var(--orange);color:var(--orange)}.results-actions{display:flex;justify-content:center;gap:1rem;margin-top:2rem}.btn-action{padding:.8rem 2rem;border-radius:8px;border:none;background:var(--cyan);color:var(--bg);font-family:var(--mono);font-size:.9rem;font-weight:600;cursor:pointer;transition:all .2s}.btn-action:hover{background:#1ab8d4;transform:translateY(-2px)}.btn-action.btn-secondary{background:var(--s2);color:var(--text);border:1px solid var(--border)}.btn-action.btn-secondary:hover{background:var(--s3)}.progress-dashboard{background:var(--s1);border:1px solid var(--border);border-radius:12px;padding:2rem;margin-bottom:2rem}.progress-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1.5rem}.progress-header h3{font-size:1.5rem;font-weight:700;color:var(--text)}.progress-percentage{font-family:var(--mono);font-size:2rem;font-weight:700;color:var(--cyan)}.progress-bar-container{width:100%;height:24px;background:var(--s3);border-radius:12px;overflow:hidden;margin-bottom:2rem}.progress-bar-fill{height:100%;background:linear-gradient(90deg,var(--cyan),var(--purple));display:flex;align-items:center;justify-content:flex-end;padding-right:1rem;transition:width .5s ease}.progress-label{font-family:var(--mono);font-size:.75rem;font-weight:600;color:#fff}.modules-grid{display:grid;grid-template-columns:1fr;gap:.75rem;margin-bottom:2rem}.module-card{background:var(--s2);border:1px solid var(--border);border-radius:8px;padding:.9rem 1rem;display:flex;flex-wrap:wrap;align-items:center;gap:.6rem;transition:all .2s}.module-card.completed{border-color:var(--green);background:#4ade800d}.module-number{width:40px;height:40px;background:var(--s3);border-radius:50%;display:flex;align-items:center;justify-content:center;font-family:var(--mono);font-weight:700;color:var(--cyan);flex-shrink:0}.module-card.completed .module-number{background:var(--green);color:#fff}.module-info{flex:1;min-width:0}.module-title{font-size:.82rem;font-weight:600;color:var(--text);margin-bottom:.2rem;line-height:1.3}.module-badge{font-family:var(--mono);font-size:.7rem;color:var(--green)}.btn-mark-complete{padding:.35rem .7rem;border-radius:6px;border:1px solid var(--border);background:var(--s3);color:var(--text);font-size:.72rem;cursor:pointer;transition:all .2s;white-space:nowrap;flex-shrink:0}.btn-mark-complete:hover{border-color:var(--cyan);color:var(--cyan)}.quiz-scores-section{margin:2rem 0}.quiz-scores-section h4{font-size:1.2rem;font-weight:700;color:var(--text);margin-bottom:1rem}.quiz-score-card{background:var(--s2);border:1px solid var(--border);border-radius:8px;padding:1rem;margin-bottom:.8rem;display:flex;justify-content:space-between;align-items:center}.quiz-score-label{font-weight:600;color:var(--text)}.quiz-score-value{font-family:var(--mono);font-size:1.5rem;font-weight:700;color:var(--cyan)}.quiz-score-details{font-family:var(--mono);font-size:.75rem;color:var(--muted)}.notification{position:fixed;bottom:2rem;right:2rem;background:var(--s1);border:1px solid var(--border);border-radius:8px;padding:1rem 1.5rem;box-shadow:0 10px 30px #00000080;opacity:0;transform:translateY(20px);transition:all .3s ease;z-index:1000}.notification.show{opacity:1;transform:translateY(0)}@keyframes slideDown{0%{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}@keyframes pulse{0%,to{box-shadow:0 0 #4ade8066}50%{box-shadow:0 0 0 10px #4ade8000}}@media (max-width: 768px){.quiz-card.enhanced{padding:1.5rem}.stats-grid{grid-template-columns:repeat(2,1fr)}.modules-grid{grid-template-columns:1fr}.results-actions{flex-direction:column}.btn-action{width:100%}}