@import"https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap";.modal-overlay[data-v-b39b9b74]{position:fixed;top:0;left:0;right:0;bottom:0;background-color:#00000080;display:flex;align-items:center;justify-content:center;z-index:1000;animation:fadeIn-b39b9b74 .3s ease}@keyframes fadeIn-b39b9b74{0%{opacity:0}to{opacity:1}}.modal-content[data-v-b39b9b74]{background:#fff;border-radius:16px;padding:32px;max-width:600px;width:90%;max-height:80vh;overflow-y:auto;box-shadow:0 20px 25px -5px #0000001a,0 10px 10px -5px #0000000a;animation:slideUp-b39b9b74 .3s ease}@keyframes slideUp-b39b9b74{0%{transform:translateY(20px);opacity:0}to{transform:translateY(0);opacity:1}}.welcome-modal[data-v-b39b9b74]{text-align:center}.modal-title[data-v-b39b9b74]{color:#1f2937;font-size:2rem;margin-bottom:24px;font-weight:700;background:linear-gradient(135deg,#1f2937,#374151,#4b5563,#6b7280,#9ca3af);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.modal-body[data-v-b39b9b74]{color:#4b5563;line-height:1.6;margin-bottom:32px}.modal-body p[data-v-b39b9b74]{margin-bottom:16px}.modal-body p[data-v-b39b9b74]:last-child{margin-bottom:0}.modal-footer[data-v-b39b9b74]{display:flex;justify-content:center}.continue-btn[data-v-b39b9b74]{background:linear-gradient(135deg,#1f2937,#374151);color:#fff;border:none;padding:14px 40px;border-radius:12px;font-size:1.1rem;font-weight:600;cursor:pointer;transition:all .3s cubic-bezier(.4,0,.2,1)}.continue-btn[data-v-b39b9b74]:hover{transform:translateY(-2px);box-shadow:0 8px 25px #1f293740;background:linear-gradient(135deg,#111827,#1f2937)}.continue-btn[data-v-b39b9b74]:active{transform:translateY(0)}@media (max-width: 640px){.modal-content[data-v-b39b9b74]{padding:24px;width:95%}.modal-title[data-v-b39b9b74]{font-size:1.5rem}.continue-btn[data-v-b39b9b74]{padding:12px 32px;font-size:1rem}}.feedback-button[data-v-89d5e950]{position:fixed;bottom:30px;right:30px;background:linear-gradient(135deg,#374151,#4b5563);color:#fff;border:none;padding:14px 24px;border-radius:50px;font-size:1rem;font-weight:600;cursor:pointer;box-shadow:0 4px 15px #3741514d;transition:all .3s cubic-bezier(.4,0,.2,1);display:flex;align-items:center;gap:8px;z-index:999}.feedback-button[data-v-89d5e950]:hover{transform:translateY(-3px);box-shadow:0 8px 25px #1f29374d;background:linear-gradient(135deg,#1f2937,#374151)}.feedback-button[data-v-89d5e950]:active{transform:translateY(-1px)}.feedback-button i[data-v-89d5e950]{font-size:1.2rem}.modal-overlay[data-v-89d5e950]{position:fixed;top:0;left:0;right:0;bottom:0;background-color:#00000080;display:flex;align-items:center;justify-content:center;z-index:1000;animation:fadeIn-89d5e950 .3s ease}@keyframes fadeIn-89d5e950{0%{opacity:0}to{opacity:1}}.modal-content[data-v-89d5e950]{background:#fff;border-radius:16px;padding:32px;max-width:500px;width:90%;position:relative;box-shadow:0 20px 25px -5px #0000001a,0 10px 10px -5px #0000000a;animation:slideUp-89d5e950 .3s ease}@keyframes slideUp-89d5e950{0%{transform:translateY(20px);opacity:0}to{transform:translateY(0);opacity:1}}.feedback-modal[data-v-89d5e950]{text-align:center}.close-btn[data-v-89d5e950]{position:absolute;top:16px;right:16px;background:none;border:none;color:#6b7280;font-size:1.5rem;cursor:pointer;padding:8px;transition:color .2s;width:40px;height:40px;display:flex;align-items:center;justify-content:center;border-radius:8px}.close-btn[data-v-89d5e950]:hover{color:#374151;background-color:#f3f4f6}.modal-title[data-v-89d5e950]{color:#1f2937;font-size:1.8rem;margin-bottom:20px;font-weight:700;background:linear-gradient(135deg,#1f2937,#374151,#4b5563,#6b7280,#9ca3af);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.modal-body[data-v-89d5e950]{color:#4b5563;line-height:1.6}.modal-body p[data-v-89d5e950]{margin-bottom:20px}.survey-link-container[data-v-89d5e950]{margin:30px 0}.survey-link[data-v-89d5e950]{display:inline-flex;align-items:center;gap:10px;background:linear-gradient(135deg,#1f2937,#374151);color:#fff;text-decoration:none;padding:14px 28px;border-radius:12px;font-weight:600;font-size:1.05rem;transition:all .3s cubic-bezier(.4,0,.2,1)}.survey-link[data-v-89d5e950]:hover{transform:translateY(-2px);box-shadow:0 8px 25px #1f293740;background:linear-gradient(135deg,#111827,#1f2937)}.survey-link[data-v-89d5e950]:active{transform:translateY(0)}.thank-you[data-v-89d5e950]{margin-top:20px;margin-bottom:0;font-style:italic;color:#6b7280}@media (max-width: 640px){.feedback-button[data-v-89d5e950]{bottom:20px;right:20px;padding:12px 20px;font-size:.9rem}.feedback-button span[data-v-89d5e950]{display:none}.feedback-button i[data-v-89d5e950]{font-size:1.3rem}.modal-content[data-v-89d5e950]{padding:24px;width:95%}.modal-title[data-v-89d5e950]{font-size:1.5rem}.survey-link[data-v-89d5e950]{padding:12px 24px;font-size:1rem}}.header[data-v-588cab90]{background:linear-gradient(135deg,#f8f9fa,#fff);border-bottom:1px solid #e5e7eb;padding:20px 0;margin-bottom:30px;box-shadow:0 1px 3px #00000008,0 4px 6px #00000005}.header .container[data-v-588cab90]{display:flex;justify-content:space-between;align-items:center}.header nav[data-v-588cab90]{display:flex;gap:15px;align-items:center}.header h1[data-v-588cab90]{font-size:2.5rem;margin:0}.nav-link[data-v-588cab90]{color:#374151;text-decoration:none;font-weight:600;padding:12px 24px;border-radius:12px;transition:all .3s cubic-bezier(.4,0,.2,1);background:linear-gradient(135deg,#1f2937,#374151);color:#fff;border:1px solid transparent;display:flex;align-items:center;gap:8px;cursor:pointer}.logout-btn[data-v-588cab90]{background:linear-gradient(135deg,#dc2626,#ef4444);border:none;font-family:inherit;font-size:1rem}.logout-btn[data-v-588cab90]:hover{transform:translateY(-2px);box-shadow:0 8px 25px #dc262640;background:linear-gradient(135deg,#b91c1c,#dc2626)}.nav-link[data-v-588cab90]:hover{transform:translateY(-2px);box-shadow:0 8px 25px #1f293740;background:linear-gradient(135deg,#111827,#1f2937)}.nav-link.router-link-active[data-v-588cab90]{background:linear-gradient(135deg,#1f2937,#374151);color:#fff;border-color:transparent;box-shadow:0 4px 12px #1f293740}@media (max-width: 768px){.header h1[data-v-588cab90]{font-size:1.8rem}.header .container[data-v-588cab90]{flex-direction:column;gap:15px}}.welcome-card[data-v-d759acd0]{text-align:center;max-width:900px;margin:40px auto}.welcome-card h2[data-v-d759acd0]{font-size:2.5rem;margin-bottom:20px}.welcome-card .subtitle[data-v-d759acd0]{font-size:1.6rem;color:#374151;margin:10px 0;font-weight:600}.welcome-card .description[data-v-d759acd0]{text-align:left;max-width:800px;margin:40px auto}.welcome-card .description p[data-v-d759acd0]{font-size:1rem;color:#666;margin-bottom:20px;line-height:1.6}.welcome-card .contact-info[data-v-d759acd0]{background:#f8f9fa;padding:20px;border-radius:8px;margin:30px 0}.welcome-card .contact-info p[data-v-d759acd0]{margin-bottom:10px}.welcome-card .reference[data-v-d759acd0]{font-size:.9rem;color:#888;font-style:italic;border-top:1px solid #e9ecef;padding-top:20px;margin-top:30px}.action-buttons[data-v-d759acd0]{display:flex;justify-content:center;gap:20px;margin-top:40px;padding-top:30px;border-top:2px solid #f3f4f6}.btn[data-v-d759acd0]{display:inline-flex;align-items:center;gap:10px;padding:12px 24px;font-size:1.1rem;font-weight:600;border:none;border-radius:8px;cursor:pointer;transition:all .3s ease}.btn-primary[data-v-d759acd0]{background:linear-gradient(135deg,#1f2937,#374151);color:#fff}.btn-primary[data-v-d759acd0]:hover{background:linear-gradient(135deg,#374151,#4b5563);transform:translate(2px)}.btn-secondary[data-v-d759acd0]{background:#fff;color:#374151;border:2px solid #e5e7eb}.btn-secondary[data-v-d759acd0]:hover{background:#f9fafb;border-color:#9ca3af}@media (max-width: 768px){.welcome-card h2[data-v-d759acd0]{font-size:2rem}.welcome-card .subtitle[data-v-d759acd0]{font-size:1.3rem}.action-buttons[data-v-d759acd0]{flex-direction:column;align-items:stretch}.btn[data-v-d759acd0]{justify-content:center}}.disclaimer-card[data-v-6e72d768]{background:#fff3cd;border:1px solid #ffc107;padding:20px;margin-bottom:30px;border-radius:8px}.disclaimer-card p[data-v-6e72d768]{margin:0;color:#856404;line-height:1.6}.progress-card[data-v-6e72d768]{text-align:center;margin-bottom:40px}.progress-card h2[data-v-6e72d768]{font-size:2.5rem;margin-bottom:30px}.stats-grid[data-v-6e72d768]{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:30px;text-align:center}.stat-item[data-v-6e72d768]{padding:20px;background:linear-gradient(135deg,#f8f9fa,#e9ecef);border-radius:12px}.stat-number[data-v-6e72d768]{font-size:2.5rem;font-weight:700;color:#374151;margin-bottom:5px}.stat-label[data-v-6e72d768]{color:#666;font-weight:500}.chapter-card[data-v-6e72d768]{cursor:pointer;position:relative;overflow:hidden;display:flex;flex-direction:column;min-height:320px}.chapter-card[data-v-6e72d768]:before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(135deg,#1f2937,#374151)}.chapter-card h3[data-v-6e72d768]{color:#333;margin-bottom:15px;font-size:1.4rem}.chapter-card p[data-v-6e72d768]{color:#666;margin-bottom:20px;line-height:1.6}.chapter-stats[data-v-6e72d768]{background:#f8f9fa;padding:15px;border-radius:8px;margin-bottom:20px}.stat-row[data-v-6e72d768]{display:flex;justify-content:space-between;padding:5px 0;font-size:.95rem}.stat-row .stat-label[data-v-6e72d768]{color:#666;font-weight:500}.stat-row .stat-value[data-v-6e72d768]{color:#374151;font-weight:700}.progress-section[data-v-6e72d768]{margin:20px 0}.progress-info[data-v-6e72d768]{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px;font-size:.9rem}.progress-info span[data-v-6e72d768]:first-child{font-weight:600;color:#333}.question-count[data-v-6e72d768]{color:#666}.chapter-actions[data-v-6e72d768]{margin-top:auto;padding-top:20px}@media (max-width: 768px){.progress-card h2[data-v-6e72d768]{font-size:2rem}.stats-grid[data-v-6e72d768]{grid-template-columns:1fr;gap:20px}}.back-link[data-v-cb80f2d4]{color:#374151;text-decoration:none;font-weight:600;margin-bottom:20px;display:inline-flex;align-items:center;padding:10px 16px;border-radius:12px;transition:all .3s cubic-bezier(.4,0,.2,1);background:#f9fafb;border:1px solid #e5e7eb}.back-link[data-v-cb80f2d4]:hover{background:linear-gradient(135deg,#1f2937,#374151);color:#fff;transform:translateY(-2px);box-shadow:0 4px 12px #1f293740}.chapter-header h1[data-v-cb80f2d4]{font-size:2.2rem;margin:20px 0}.chapter-description[data-v-cb80f2d4]{font-size:1.1rem;color:#666;margin-bottom:30px;line-height:1.6}.chapter-progress[data-v-cb80f2d4]{margin-bottom:20px}.section-card[data-v-cb80f2d4]{position:relative;overflow:hidden;display:flex;flex-direction:column;min-height:400px}.section-card[data-v-cb80f2d4]:before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(135deg,#1f2937,#374151)}.section-card h3[data-v-cb80f2d4]{color:#333;margin-bottom:20px;font-size:1.4rem}.section-progress[data-v-cb80f2d4]{margin-bottom:25px}.questions-grid[data-v-cb80f2d4]{display:grid;grid-template-columns:repeat(auto-fill,minmax(50px,1fr));gap:8px;margin:20px 0;padding:16px;background:linear-gradient(135deg,#f8f9fa,#fff);border-radius:12px;border:1px solid #e5e7eb;max-height:200px;overflow-y:auto;box-shadow:inset 0 2px 4px #00000008}.questions-grid[data-v-cb80f2d4]::-webkit-scrollbar{width:6px}.questions-grid[data-v-cb80f2d4]::-webkit-scrollbar-track{background:#f1f5f9;border-radius:3px}.questions-grid[data-v-cb80f2d4]::-webkit-scrollbar-thumb{background:#cbd5e1;border-radius:3px}.questions-grid[data-v-cb80f2d4]::-webkit-scrollbar-thumb:hover{background:#94a3b8}.question-item[data-v-cb80f2d4]{position:relative;width:60px;height:60px;border-radius:12px;background:linear-gradient(135deg,#f8f9fa,#fff);border:2px solid #e5e7eb;display:flex;flex-direction:column;align-items:center;justify-content:center;cursor:pointer;transition:all .3s cubic-bezier(.4,0,.2,1);box-shadow:0 2px 4px #0000000d}.question-item[data-v-cb80f2d4]:hover{transform:translateY(-2px);box-shadow:0 4px 12px #1f293726;background:#f9fafb;border-color:#374151;color:#1f2937}.question-item.completed[data-v-cb80f2d4]{border-color:#22c55e;background:linear-gradient(135deg,#f0fdf4,#dcfce7);box-shadow:0 4px 8px #22c55e33}.question-item.incorrect[data-v-cb80f2d4]{border-color:#ef4444;background:linear-gradient(135deg,#fef2f2,#fecaca);box-shadow:0 4px 8px #ef444433}.question-item.incorrect[data-v-cb80f2d4]:hover{border-color:#dc2626;background:linear-gradient(135deg,#fecaca,#fca5a5);transform:translateY(-2px);box-shadow:0 6px 12px #ef44444d}.question-item.current[data-v-cb80f2d4]{border-width:3px;box-shadow:0 0 0 3px #3b82f61a,0 2px 8px #3b82f633;background:#eff6ff}.question-item.flagged[data-v-cb80f2d4]{border-color:#f59e0b;background:linear-gradient(135deg,#fef3c7,#fde68a);box-shadow:0 4px 8px #f59e0b33}.question-item.flagged[data-v-cb80f2d4]:hover{border-color:#d97706;background:linear-gradient(135deg,#fde68a,#fcd34d);transform:translateY(-2px);box-shadow:0 6px 12px #f59e0b4d}.flag-indicator[data-v-cb80f2d4]{position:absolute;top:-5px;right:-5px;font-size:12px;background:#fff;border-radius:50%;width:20px;height:20px;display:flex;align-items:center;justify-content:center;box-shadow:0 2px 4px #0000001a}.question-number[data-v-cb80f2d4]{font-weight:600;font-size:.9rem}.incorrect-number[data-v-cb80f2d4]{color:#dc2626;font-weight:700;font-size:1.1rem}.question-item.completed .question-number[data-v-cb80f2d4]{display:none}.status-icon[data-v-cb80f2d4]{font-size:1.2rem;font-weight:700}.status-icon.correct[data-v-cb80f2d4]{color:#16a34a;font-weight:700}.status-icon.incorrect[data-v-cb80f2d4]{color:#dc2626;font-weight:700}.question-item.completed .status-icon[data-v-cb80f2d4]{display:block}.question-item:not(.completed) .status-icon[data-v-cb80f2d4]{display:none}.section-actions[data-v-cb80f2d4]{display:flex;gap:15px;margin-top:auto;padding-top:25px}.progress-info[data-v-cb80f2d4]{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px;font-size:.9rem}.progress-info span[data-v-cb80f2d4]:first-child{font-weight:600;color:#333}.question-count[data-v-cb80f2d4]{color:#666}.error-card[data-v-cb80f2d4]{text-align:center;padding:60px 30px}.error-card h2[data-v-cb80f2d4]{color:#e74c3c;margin-bottom:20px}@media (max-width: 768px){.chapter-header h1[data-v-cb80f2d4]{font-size:1.8rem}.questions-grid[data-v-cb80f2d4]{grid-template-columns:repeat(auto-fill,minmax(50px,1fr));gap:8px}.question-item[data-v-cb80f2d4]{width:50px;height:50px}.section-actions[data-v-cb80f2d4]{flex-direction:column}}.modal-overlay[data-v-f69ceaea]{position:fixed;top:0;left:0;right:0;bottom:0;background:#000000f2;z-index:9999;display:flex;align-items:center;justify-content:center;padding:20px;cursor:zoom-out}.modal-container[data-v-f69ceaea]{position:relative;max-width:95vw;max-height:95vh;display:flex;align-items:center;justify-content:center;cursor:default}.modal-close[data-v-f69ceaea]{position:absolute;top:-40px;right:0;background:#ffffff1a;border:2px solid rgba(255,255,255,.3);color:#fff;font-size:24px;width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .3s ease;z-index:10000}.modal-close[data-v-f69ceaea]:hover{background:#fff3;border-color:#ffffff80;transform:scale(1.1)}.modal-image-wrapper[data-v-f69ceaea]{display:flex;align-items:center;justify-content:center;width:100%;height:100%}.modal-image[data-v-f69ceaea]{max-width:100%;max-height:90vh;width:auto;height:auto;object-fit:contain;border-radius:8px;box-shadow:0 20px 60px #00000080}.modal-fade-enter-active[data-v-f69ceaea],.modal-fade-leave-active[data-v-f69ceaea]{transition:opacity .3s ease}.modal-fade-enter-from[data-v-f69ceaea],.modal-fade-leave-to[data-v-f69ceaea]{opacity:0}@media (max-width: 768px){.modal-overlay[data-v-f69ceaea]{padding:10px}.modal-close[data-v-f69ceaea]{top:10px;right:10px;position:fixed;width:35px;height:35px;font-size:20px}.modal-image[data-v-f69ceaea]{max-height:85vh}}.pdf-viewer-container[data-v-734ba096]{width:100%;background:#f8f9fa;border-radius:12px;padding:20px;margin-top:20px}.pdf-loading[data-v-734ba096]{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:600px}.spinner[data-v-734ba096]{width:40px;height:40px;border:4px solid #e5e7eb;border-top-color:#374151;border-radius:50%;animation:spin-734ba096 1s linear infinite}@keyframes spin-734ba096{to{transform:rotate(360deg)}}.pdf-content[data-v-734ba096]{display:flex;flex-direction:column;gap:20px}.pdf-iframe-container[data-v-734ba096]{background:#fff;border-radius:10px;padding:10px;box-shadow:0 4px 12px #0000001a}.pdf-iframe[data-v-734ba096]{width:100%;height:700px;border:none;border-radius:6px}@media (max-width: 768px){.pdf-viewer-container[data-v-734ba096]{padding:15px}.pdf-iframe[data-v-734ba096]{height:500px}}.back-link[data-v-d668f301]{color:#374151;text-decoration:none;font-weight:600;margin-bottom:20px;display:inline-flex;align-items:center;padding:10px 16px;border-radius:12px;transition:all .3s cubic-bezier(.4,0,.2,1);background:#f9fafb;border:1px solid #e5e7eb}.back-link[data-v-d668f301]:hover{background:linear-gradient(135deg,#1f2937,#374151);color:#fff;transform:translateY(-2px);box-shadow:0 4px 12px #1f293740}.question-meta[data-v-d668f301]{display:flex;justify-content:space-between;align-items:center;margin-bottom:30px;padding:20px 24px;background:linear-gradient(135deg,#f8f9fa,#fff);border-radius:16px;border:1px solid #e5e7eb;box-shadow:0 2px 4px #0000000a,0 4px 8px #00000005}.section-title[data-v-d668f301]{font-weight:600;color:#1f2937;font-size:1.1rem}.question-number[data-v-d668f301]{color:#374151;font-weight:600;background:linear-gradient(135deg,#1f2937,#374151);color:#fff;padding:8px 16px;border-radius:20px;font-size:.9rem}.question-text[data-v-d668f301]{font-size:1.5rem;color:#1f2937;margin-bottom:30px;line-height:1.6;font-weight:600;background:linear-gradient(135deg,#1f2937,#374151,#4b5563,#6b7280,#9ca3af);background-clip:text;-webkit-background-clip:text;-webkit-text-fill-color:transparent}.question-image[data-v-d668f301]{margin:20px 0 30px;padding:20px;background:#f8f9fa;border-radius:12px;border:1px solid #e5e7eb;display:flex;flex-direction:column;align-items:center;gap:15px}.question-image img[data-v-d668f301]{max-width:100%;height:auto;max-height:400px;border-radius:8px;box-shadow:0 4px 12px #0000001a}.image-container[data-v-d668f301]{display:flex;justify-content:center;width:100%}.enlarge-btn[data-v-d668f301]{background:linear-gradient(135deg,#1f2937,#374151);color:#fff;border:2px solid #374151;padding:10px 20px;border-radius:8px;font-size:.95rem;font-weight:600;cursor:pointer;transition:all .3s ease;box-shadow:0 2px 8px #00000026;display:inline-flex;align-items:center;gap:5px}.enlarge-btn[data-v-d668f301]:hover{background:linear-gradient(135deg,#111827,#1f2937);transform:translateY(-2px);box-shadow:0 4px 12px #1f29374d;border-color:#1f2937}.options-container[data-v-d668f301]{margin:30px 0}.question-option[data-v-d668f301]{margin-bottom:15px}.option-content[data-v-d668f301]{display:flex;align-items:center;gap:15px}.option-letter[data-v-d668f301]{display:flex;align-items:center;justify-content:center;width:40px;height:40px;background:linear-gradient(135deg,#1f2937,#374151);color:#fff;border-radius:50%;font-weight:600;flex-shrink:0;transition:all .3s cubic-bezier(.4,0,.2,1)}.option-text[data-v-d668f301]{flex:1;font-size:1.1rem;color:#374151;font-weight:500}.question-option.selected .option-text[data-v-d668f301]{color:#fff;font-weight:600}.options-container .question-option.correct .option-text[data-v-d668f301],.options-container .question-option.correct:hover .option-text[data-v-d668f301]{color:#166534!important}.option-indicator[data-v-d668f301]{width:30px;display:flex;justify-content:center;align-items:center;font-size:1.2rem;font-weight:700}.correct-icon[data-v-d668f301]{color:#166534}.incorrect-icon[data-v-d668f301]{color:#e74c3c}.question-option.selected .option-letter[data-v-d668f301]{background:#fff;color:#1f2937;box-shadow:0 4px 12px #ffffff4d;transform:scale(1.1);border:2px solid #065f46}.question-option.correct .option-letter[data-v-d668f301]{background:#166534;color:#f0fdf4;box-shadow:0 4px 12px #22c55e40;border:2px solid #22c55e}.question-option.incorrect .option-letter[data-v-d668f301]{background:#fff;color:#dc2626;box-shadow:0 4px 12px #dc262666;border:2px solid #dc2626}.question-option:not(.selected):not(.correct):not(.incorrect):hover .option-letter[data-v-d668f301]{background:linear-gradient(135deg,#111827,#1f2937);transform:scale(1.05);box-shadow:0 4px 12px #1f29374d}.question-option:not(.selected):not(.correct):not(.incorrect):hover .option-text[data-v-d668f301]{color:#1f2937;font-weight:600}.question-option.selected:hover .option-text[data-v-d668f301]{color:#fff;font-weight:600}.question-option.selected:hover .option-letter[data-v-d668f301]{background:#fff;color:#1f2937;transform:scale(1.1)}.question-option.correct:hover .option-letter[data-v-d668f301]{background:#166534;color:#f0fdf4;box-shadow:0 4px 12px #22c55e40;border:2px solid #22c55e;transform:scale(1.1)}.question-option.incorrect:hover .option-letter[data-v-d668f301]{background:#fff;color:#dc2626;box-shadow:0 4px 12px #dc262666;border:2px solid #dc2626;transform:scale(1.1)}.question-option.correct .option-text[data-v-d668f301]{color:#166534!important;font-weight:600}.question-option.incorrect:hover .option-text[data-v-d668f301]{color:#fff;font-weight:600}.question-actions[data-v-d668f301]{display:flex;gap:15px;margin:30px 0;flex-wrap:wrap}.btn-success[data-v-d668f301]{background:linear-gradient(135deg,#10b981,#059669);color:#fff;border:2px solid #10b981}.btn-success[data-v-d668f301]:hover{background:linear-gradient(135deg,#059669,#047857);border-color:#059669;transform:translateY(-2px);box-shadow:0 4px 12px #10b9814d}.btn-outline[data-v-d668f301]{background:transparent;color:#6b7280;border:2px solid #d1d5db}.btn-outline[data-v-d668f301]:hover{background:#f9fafb;color:#374151;border-color:#9ca3af}.btn-warning[data-v-d668f301]{background:linear-gradient(135deg,#f59e0b,#d97706);color:#fff;border:2px solid #f59e0b}.btn-warning[data-v-d668f301]:hover{background:linear-gradient(135deg,#d97706,#b45309);border-color:#d97706;transform:translateY(-2px);box-shadow:0 4px 12px #d977064d}.flag-icon[data-v-d668f301]{margin-right:5px}.explanation[data-v-d668f301]{margin-top:30px;padding:25px;border-radius:12px;background:#f8fafc;color:#374151;border:1px solid #e2e8f0;box-shadow:0 4px 6px #0000000a,0 8px 16px #00000008}.explanation h4[data-v-d668f301]{margin-bottom:15px;color:#1f2937;font-size:1.2rem}.explanation p[data-v-d668f301]{line-height:1.6;margin-bottom:15px;color:#374151}.diagram[data-v-d668f301]{margin-top:20px;padding:15px;background:#f3f4f6;border-radius:8px;border:1px solid #e5e7eb}.diagram pre[data-v-d668f301]{color:#374151;font-family:Courier New,monospace;margin-top:10px}.explanation-image[data-v-d668f301]{margin:20px 0;padding:20px;background:#ffffff1a;border-radius:12px;border:1px solid rgba(255,255,255,.2);display:flex;flex-direction:column;align-items:center;gap:15px}.explanation-image img[data-v-d668f301]{max-width:100%;height:auto;max-height:300px;border-radius:8px;box-shadow:0 4px 12px #0003}.explanation-image .image-container[data-v-d668f301]{display:flex;justify-content:center;width:100%}.result-message[data-v-d668f301]{margin:25px 0;padding:20px;border-radius:12px;display:flex;align-items:center;gap:15px;font-weight:600}.success-message[data-v-d668f301],.error-message[data-v-d668f301]{background:linear-gradient(135deg,#1f2937,#374151);color:#fff}.result-icon[data-v-d668f301]{font-size:1.5rem}.question-navigation[data-v-d668f301]{display:flex;justify-content:space-between;align-items:center;margin-top:40px;padding-top:30px;border-top:2px solid #f0f0f0}.navigation-info[data-v-d668f301]{font-weight:600;color:#fff;padding:12px 24px;background:linear-gradient(135deg,#1f2937,#374151);border-radius:20px;box-shadow:0 4px 12px #1f293740}.error-card[data-v-d668f301]{text-align:center;padding:60px 30px}.error-card h2[data-v-d668f301]{color:#e74c3c;margin-bottom:20px}@media (max-width: 768px){.question-meta[data-v-d668f301]{flex-direction:column;gap:10px;text-align:center}.question-text[data-v-d668f301]{font-size:1.2rem}.question-actions[data-v-d668f301]{flex-direction:column}.question-navigation[data-v-d668f301]{flex-direction:column;gap:20px}.option-content[data-v-d668f301]{gap:10px}.option-letter[data-v-d668f301]{width:35px;height:35px;font-size:.9rem}.question-image img[data-v-d668f301],.explanation-image img[data-v-d668f301]{max-height:250px}.question-image[data-v-d668f301],.explanation-image[data-v-d668f301]{padding:15px;margin:15px 0}.enlarge-btn[data-v-d668f301]{padding:8px 16px;font-size:.85rem}}.login-container[data-v-0f012cef]{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#f8f9fa,#e9ecef);padding:20px}.login-card[data-v-0f012cef]{max-width:480px;width:100%;margin:0 auto;box-shadow:0 8px 32px #0000001f,0 4px 16px #00000014,0 2px 8px #0000000a;border:1px solid #e5e7eb}.login-header[data-v-0f012cef]{text-align:center;margin-bottom:40px}.login-header h1[data-v-0f012cef]{font-size:2.5rem;margin-bottom:15px}.login-header h2[data-v-0f012cef]{font-size:1.5rem;color:#374151;margin-bottom:10px;background:linear-gradient(135deg,#1f2937,#374151,#4b5563,#6b7280,#9ca3af);background-clip:text;-webkit-background-clip:text;-webkit-text-fill-color:transparent}.login-header p[data-v-0f012cef]{color:#6b7280;font-size:1rem;line-height:1.5}.login-form[data-v-0f012cef]{margin-bottom:30px}.form-group[data-v-0f012cef]{margin-bottom:25px}.form-group label[data-v-0f012cef]{display:block;margin-bottom:8px;font-weight:600;color:#374151;font-size:.95rem}.form-input[data-v-0f012cef]{width:100%;padding:16px 20px;border:2px solid #e5e7eb;border-radius:12px;font-size:1rem;font-family:inherit;transition:all .3s cubic-bezier(.4,0,.2,1);background:#fff;color:#374151}.form-input[data-v-0f012cef]:focus{outline:none;border-color:#1f2937;box-shadow:0 0 0 3px #1f29371a,0 4px 12px #1f293726;transform:translateY(-1px)}.form-input.error[data-v-0f012cef]{border-color:#dc2626;box-shadow:0 0 0 3px #dc26261a,0 4px 12px #dc262626}.form-input.error[data-v-0f012cef]:focus{border-color:#dc2626;box-shadow:0 0 0 3px #dc26261a,0 4px 12px #dc262626}.form-input[data-v-0f012cef]::placeholder{color:#9ca3af}.error-message[data-v-0f012cef]{display:flex;align-items:center;gap:10px;padding:12px 16px;background:linear-gradient(135deg,#fef2f2,#fee2e2);border:1px solid #fecaca;border-radius:12px;color:#dc2626;font-weight:500;margin-bottom:20px}.error-icon[data-v-0f012cef]{font-size:1.1rem}.login-btn[data-v-0f012cef]{width:100%;padding:18px 32px;font-size:1.1rem;font-weight:600;margin-bottom:20px}.login-btn[data-v-0f012cef]:disabled{opacity:.7;cursor:not-allowed;transform:none}.login-btn[data-v-0f012cef]:disabled:hover{transform:none;box-shadow:0 8px 25px #1f293740}.login-footer[data-v-0f012cef]{text-align:center;padding-top:20px;border-top:2px solid #f3f4f6}.credentials-hint[data-v-0f012cef]{background:linear-gradient(135deg,#f8f9fa,#fff);padding:20px;border-radius:12px;border:1px solid #e5e7eb}.credentials-hint h4[data-v-0f012cef]{color:#374151;margin-bottom:12px;font-size:1rem;background:none;-webkit-text-fill-color:#374151}.credentials-hint p[data-v-0f012cef]{color:#6b7280;margin:8px 0;font-size:.9rem;line-height:1.4}.credentials-hint p strong[data-v-0f012cef]{color:#374151;font-weight:600}@media (max-width: 768px){.login-container[data-v-0f012cef]{padding:15px}.login-card[data-v-0f012cef]{padding:30px 25px}.login-header h1[data-v-0f012cef]{font-size:2rem}.login-header h2[data-v-0f012cef]{font-size:1.25rem}.form-input[data-v-0f012cef]{padding:14px 16px}.login-btn[data-v-0f012cef]{padding:16px 24px;font-size:1rem}}.acknowledgements-container[data-v-8c9d4452]{max-width:1200px;margin:0 auto;padding:40px 20px}.page-title[data-v-8c9d4452]{text-align:center;margin-bottom:50px;font-size:2.5rem;background:linear-gradient(135deg,#1f2937,#374151,#4b5563,#6b7280,#9ca3af);background-clip:text;-webkit-background-clip:text;-webkit-text-fill-color:transparent;font-weight:800}.section-title[data-v-8c9d4452]{font-size:1.8rem;margin-bottom:30px;color:#374151;font-weight:600}.authors-section[data-v-8c9d4452],.acknowledgements-section[data-v-8c9d4452],.funding-section[data-v-8c9d4452]{background:#fff;border-radius:16px;padding:40px;box-shadow:0 1px 3px #00000008,0 4px 6px #00000005,0 8px 12px #00000004;border:1px solid #f3f4f6;margin-bottom:30px}.funding-content[data-v-8c9d4452]{color:#4b5563;font-size:1.05rem;line-height:1.6}.funding-content p[data-v-8c9d4452]{margin:0}.authors-grid[data-v-8c9d4452]{display:grid;gap:24px}.author-card[data-v-8c9d4452]{padding:20px;background:linear-gradient(135deg,#f8f9fa,#fff);border-radius:12px;border-left:4px solid;border-image:linear-gradient(135deg,#1f2937,#374151) 1;transition:all .3s cubic-bezier(.4,0,.2,1)}.author-card[data-v-8c9d4452]:hover{transform:translate(4px);box-shadow:0 4px 12px #0000000d}.author-name[data-v-8c9d4452]{font-size:1.15rem;font-weight:700;color:#1f2937;margin-bottom:4px}.author-credentials[data-v-8c9d4452]{font-size:.95rem;color:#4b5563;font-weight:500;margin-bottom:8px}.author-affiliation[data-v-8c9d4452]{font-size:.9rem;color:#6b7280;line-height:1.5}@media (max-width: 768px){.acknowledgements-container[data-v-8c9d4452]{padding:20px 15px}.page-title[data-v-8c9d4452]{font-size:2rem;margin-bottom:30px}.section-title[data-v-8c9d4452]{font-size:1.5rem;margin-bottom:20px}.authors-section[data-v-8c9d4452],.acknowledgements-section[data-v-8c9d4452],.funding-section[data-v-8c9d4452]{padding:25px 20px}.author-card[data-v-8c9d4452]{padding:15px}.author-name[data-v-8c9d4452]{font-size:1.05rem}.author-credentials[data-v-8c9d4452]{font-size:.9rem}.author-affiliation[data-v-8c9d4452]{font-size:.85rem}}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,system-ui,sans-serif;background:#fff;min-height:100vh;color:#374151;line-height:1.6;font-feature-settings:"cv11","ss01";-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}#app{min-height:100vh}.container{max-width:1400px;margin:0 auto;padding:32px 24px}.card{background:#fff;border-radius:16px;padding:40px;box-shadow:0 1px 3px #00000008,0 4px 6px #00000005,0 8px 12px #00000004;border:1px solid #f3f4f6;margin-bottom:32px;transition:all .3s cubic-bezier(.4,0,.2,1);position:relative;overflow:hidden}.card:hover{transform:translateY(-4px);box-shadow:0 4px 6px #0000000a,0 10px 20px #00000008,0 20px 40px #00000005;border-color:#e5e7eb}h1,h2,h3,h4,h5,h6{background:linear-gradient(135deg,#1f2937,#374151,#4b5563,#6b7280,#9ca3af);background-clip:text;-webkit-background-clip:text;-webkit-text-fill-color:transparent;font-weight:700;letter-spacing:-.025em;line-height:1.2}h1{font-size:clamp(2.5rem,5vw,4rem);font-weight:800;margin-bottom:1.5rem;background:linear-gradient(135deg,#111827,#1f2937,#374151,#4b5563,#6b7280);background-clip:text;-webkit-background-clip:text;-webkit-text-fill-color:transparent}h2{font-size:clamp(1.75rem,3.5vw,2.5rem);font-weight:700;margin-bottom:1.25rem}h3{font-size:clamp(1.25rem,2.5vw,1.875rem);font-weight:600;margin-bottom:1rem}p{color:#6b7280;font-size:1.125rem;line-height:1.7;margin-bottom:1rem}.gradient-text{background:linear-gradient(135deg,#1f2937,#374151,#4b5563,#6b7280,#9ca3af);background-clip:text;-webkit-background-clip:text;-webkit-text-fill-color:transparent;font-weight:700}.btn{padding:16px 32px;border:none;border-radius:12px;font-weight:600;font-size:1rem;cursor:pointer;transition:all .3s cubic-bezier(.4,0,.2,1);text-decoration:none;display:inline-flex;align-items:center;justify-content:center;text-align:center;position:relative;overflow:hidden;font-family:inherit;letter-spacing:-.01em;line-height:1.2}.btn-primary{background:linear-gradient(135deg,#1f2937,#374151);color:#fff;border:1px solid transparent}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 25px #1f293740;background:linear-gradient(135deg,#111827,#1f2937)}.btn-secondary{background:#fff;color:#374151;border:1px solid #d1d5db;font-weight:500}.btn-secondary:hover{background:#f9fafb;color:#1f2937;border-color:#9ca3af;transform:translateY(-1px);box-shadow:0 4px 12px #00000014}.btn-success{background:linear-gradient(135deg,#f0fdf4,#dcfce7);color:#166534;border:1px solid #bbf7d0}.btn-success:hover{transform:translateY(-2px);box-shadow:0 4px 12px #22c55e26;background:linear-gradient(135deg,#dcfce7,#bbf7d0)}.btn-info{background:linear-gradient(135deg,#1e40af,#2563eb);color:#fff}.btn-info:hover{transform:translateY(-2px);box-shadow:0 8px 25px #1e40af40;background:linear-gradient(135deg,#2563eb,#1e40af)}.progress-bar{background:#f9fafb;border-radius:8px;height:8px;overflow:hidden;border:1px solid #f3f4f6}.progress-fill{height:100%;background:linear-gradient(135deg,#374151,#6b7280);border-radius:8px;transition:width .3s ease}.fade-enter-active,.fade-leave-active{transition:opacity .3s ease}.fade-enter-from,.fade-leave-to{opacity:0}.question-option{background:#fff;border:1px solid #f3f4f6;border-radius:12px;padding:20px 24px;margin:12px 0;cursor:pointer;transition:all .3s cubic-bezier(.4,0,.2,1);position:relative;overflow:hidden;font-weight:500;color:#374151}.question-option:not(.selected):not(.correct):not(.incorrect):hover{background:linear-gradient(135deg,#f8f9fa,#fff);border-color:#1f2937;transform:translateY(-2px);box-shadow:0 8px 20px #1f293726,0 4px 6px #0000000a}.question-option.selected{background:linear-gradient(135deg,#1f2937,#374151);color:#fff;border-color:#1f2937;box-shadow:0 8px 20px #1f293740,0 0 0 1px #1f29371a;transform:translateY(-2px)}.question-option.selected:hover{background:linear-gradient(135deg,#1f2937,#374151);color:#fff;transform:translateY(-2px)}.question-option.correct{background:linear-gradient(135deg,#f0fdf4,#dcfce7);color:#166534;border-color:#bbf7d0;box-shadow:0 4px 12px #22c55e26,0 0 0 1px #22c55e1a;transform:translateY(-2px)}.question-option.correct .option-text{color:#166534!important;font-weight:600}.question-option.correct:hover{background:linear-gradient(135deg,#f0fdf4,#dcfce7);color:#166534;border-color:#bbf7d0;box-shadow:0 4px 12px #22c55e26,0 0 0 1px #22c55e1a;transform:translateY(-2px)}.question-option.incorrect,.question-option.incorrect:hover{background:linear-gradient(135deg,#dc2626,#ef4444);color:#fff;border-color:#dc2626;box-shadow:0 8px 20px #dc262640,0 0 0 1px #dc26261a;transform:translateY(-2px)}.explanation{background:#f8fafc;color:#374151;padding:28px;border-radius:16px;margin-top:24px;border:1px solid #e2e8f0;box-shadow:0 4px 6px #0000000a,0 8px 16px #00000008;position:relative;overflow:hidden}.explanation:before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(135deg,#374151,#6b7280);border-radius:16px 16px 0 0}.chapter-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:20px;margin-top:20px}.subsection-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(350px,1fr));max-width:100%;gap:24px;margin-top:20px}@media (min-width: 1200px){.subsection-list{grid-template-columns:repeat(3,1fr)}}@media (min-width: 769px) and (max-width: 1199px){.subsection-list{grid-template-columns:repeat(2,1fr)}}@media (max-width: 768px){.container{padding:10px}.card{padding:20px}.chapter-grid,.subsection-list{grid-template-columns:1fr}}
