.exam-timer-box{display:flex;align-items:center;justify-content:space-between;gap:0.55rem;width:100%;background:var(--bg-card);border:1px solid rgba(57,255,20,0.45);border-radius:0.5rem;padding:0.5rem 0.9rem;box-shadow:0 0 10px rgba(57,255,20,0.3);transition:border-color 0.3s ease,box-shadow 0.3s ease;white-space:nowrap}.exam-timer-box .exam-timer-label{font-size:0.7rem;text-transform:uppercase;letter-spacing:0.05em;color:var(--text-secondary)}.exam-timer-box .exam-timer-value{font-family:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;font-weight:700;font-size:1.1rem;color:#39ff14;text-shadow:0 0 6px rgba(57,255,20,0.85),0 0 16px rgba(57,255,20,0.4)}.exam-timer-box.is-warning{border-color:rgba(255,45,85,0.55);box-shadow:0 0 12px rgba(255,45,85,0.4)}.exam-timer-box.is-warning .exam-timer-value{color:#ff2d55;text-shadow:0 0 6px rgba(255,45,85,0.9),0 0 18px rgba(255,45,85,0.5)}.exam-timer-box.is-critical{animation:exam-timer-pulse 1s ease-in-out infinite}@keyframes exam-timer-pulse{0%,100%{opacity:1}50%{opacity:0.45}}@media (prefers-reduced-motion:reduce){.exam-timer-box.is-critical{animation:none}}.qp-mode-toggle .btn.active{background-color:var(--btn-blue);border-color:var(--btn-blue);color:#fff}.qp-stepper{display:flex;position:sticky;bottom:0.75rem;z-index:5;background:var(--bg-card);border:1px solid var(--border);border-radius:0.5rem;padding:0.6rem 0.9rem;margin-top:1rem}.qp-stepper[hidden]{display:none!important}.qp-problem[hidden]{display:none!important}.qp-solution-toggle{background:none;border:none;padding:0;margin:0;color:inherit;font:inherit;cursor:pointer;display:flex;width:100%;justify-content:flex-start;text-align:left;align-items:center;gap:0.4rem}.qp-solution-toggle:hover,.qp-solution-toggle:focus{color:var(--text-primary)}.qp-solution-toggle::after{content:"\25BE";font-size:0.75em;transition:transform 0.15s ease}.qp-solution-toggle.collapsed::after{transform:rotate(-90deg)}.qp-solution-body{margin-top:0.75rem}.qp-nav-sidebar{position:sticky;top:0.75rem;z-index:10}.qp-nav-grid{display:flex;flex-wrap:wrap;gap:0.4rem}.qp-nav-btn{position:relative;width:2.5rem;height:2.5rem;display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--border);border-radius:0.35rem;background:var(--bg-canvas);color:var(--text-primary);font-weight:600;font-size:0.9rem;cursor:pointer;padding:0;line-height:1}.qp-nav-badge{position:absolute;bottom:-4px;right:-4px;width:1rem;height:1rem;border-radius:50%;background:#e8e8ea;color:#ba312b;font-size:0.6rem;line-height:1rem;text-align:center;border:1px solid #ba312b}.qp-nav-btn:hover{border-color:var(--link-blue)}.qp-nav-btn.is-current{border-width:2px;border-color:var(--text-primary)}.qp-nav-btn.is-answered{background:#127453;border-color:#a1e5cc}.qp-nav-btn.is-skipped{background:#7c7c81;border-color:#a8a8ad;color:#ffffff}.qp-nav-btn.is-correct{background:#0d875d;border-color:#0d875d;color:#fff}.qp-nav-btn.is-incorrect{background:#d83a2d;border-color:#d83a2d;color:#fff}.qp-nav-btn.is-unanswered{background:#e8e8ea;border-color:#ba312b;color:#ba312b}:root[data-bs-theme="light"] .exam-timer-box{border-color:rgba(11,107,74,0.55);box-shadow:0 0 6px rgba(11,107,74,0.25)}:root[data-bs-theme="light"] .exam-timer-box .exam-timer-value{color:#0b6b4a;text-shadow:none}:root[data-bs-theme="light"] .exam-timer-box.is-warning{border-color:rgba(165,0,52,0.6);box-shadow:0 0 8px rgba(165,0,52,0.3)}:root[data-bs-theme="light"] .exam-timer-box.is-warning .exam-timer-value{color:#a50034;text-shadow:none}