:root{--primary-color:#2d5016;--secondary-color:#386641;--accent-color:#6a994e;--light-color:#f7f9f2;--dark-color:#283618;--text-color:#333;--background-color:#f8fafc;}body{background-color:var(--background-color);color:var(--text-color);font-family:'Segoe UI',Tahoma,Geneva,Verdana,sans-serif;line-height:1.6;}.trC{background:linear-gradient(135deg,#e9ecef 0%,#d8e2dc 100%);padding:3rem 0;border-bottom:1px solid #dee2e6;}.fSA{display:inline-block;background:linear-gradient(45deg,var(--accent-color),var(--secondary-color));color:white;padding:0.5rem 1rem;border-radius:50px;margin:0.25rem;font-size:0.875rem;font-weight:500;transition:transform 0.2s ease;}.fSA:hover{transform:scale(1.05);}.srX{background:white;border-radius:12px;padding:25px;box-shadow:0 4px 6px rgba(0,0,0,0.1);margin-bottom:2rem;border:1px solid #e2e8f0;transition:box-shadow 0.3s ease;}.srX:hover{box-shadow:0 6px 12px rgba(0,0,0,0.15);}canvas{background-color:#f8fafc;border-radius:8px;width:100%;height:300px;display:block;margin:10px 0;border:1px solid #e2e8f0;}.controls{display:flex;flex-wrap:wrap;gap:10px;margin:15px 0;align-items:center;justify-content:flex-start;}.btn{padding:0.375rem 0.75rem;font-size:0.875rem;border-radius:6px;transition:all 0.2s ease;}.btn:hover{transform:translateY(-2px);}.accordion-button{font-weight:600;color:var(--dark-color);background-color:#f8fafc;}.accordion-button:not(.collapsed){background-color:var(--accent-color);color:white;}.sJw{background:white;border-radius:8px;padding:20px;margin:15px 0;border:1px solid #e2e8f0;box-shadow:0 2px 4px rgba(0,0,0,0.05);}.c42{display:flex;flex-wrap:wrap;gap:20px;margin:20px 0;}.rbF{flex:1;min-width:250px;background:white;border-radius:8px;padding:15px;box-shadow:0 2px 4px rgba(0,0,0,0.1);transition:transform 0.3s ease,box-shadow 0.3s ease;border:1px solid #e2e8f0;}.rbF:hover{transform:translateY(-5px);box-shadow:0 4px 8px rgba(0,0,0,0.15);}@media (max-width:768px){.controls{flex-direction:column;align-items:stretch;}.btn{width:100%;margin-bottom:5px;}.rbF{min-width:100%;}.trC{padding:2rem 0;}.srX{padding:15px;}}@media (prefers-contrast:high){.srX{border:2px solid var(--dark-color);}canvas{border:2px solid var(--dark-color);}}@media (prefers-reduced-motion:reduce){*{animation-duration:0.01ms !important;animation-iteration-count:1 !important;transition-duration:0.01ms !important;}.fSA:hover,.srX:hover,.rbF:hover,.btn:hover{transform:none;}}@media (prefers-color-scheme:dark){:root{--text-color:#e2e8f0;--background-color:#1a202c;--light-color:#2d3748;}body{background-color:var(--background-color);color:var(--text-color);}.srX{background:var(--light-color);border-color:#4a5568;}canvas{background-color:#2d3748;}.sJw{background:var(--light-color);border-color:#4a5568;}.rbF{background:var(--light-color);border-color:#4a5568;}}.form-control{border-radius:6px;padding:0.5rem 0.75rem;border:1px solid #cbd5e0;transition:border-color 0.2s ease;}.form-control:focus{border-color:var(--accent-color);box-shadow:0 0 0 0.2rem rgba(106,153,78,0.25);}footer{background-color:var(--dark-color);color:white;margin-top:3rem;}html{scroll-behavior:smooth;}@keyframes pulse{0%{transform:scale(1);}50%{transform:scale(1.05);}100%{transform:scale(1);}}.l6U{animation:pulse 2s infinite;}.hpI{font-family:'Courier New',monospace;background-color:#f1f5f9;padding:10px;border-radius:6px;border-left:4px solid var(--accent-color);margin:10px 0;}.rRA{padding:10px;margin-top:10px;border-radius:6px;display:none;}.gja{background-color:#d4edda;border:1px solid #c3e6cb;color:#155724;}.o_L{background-color:#f8d7da;border:1px solid #f5c6cb;color:#721c24;}@keyframes correct-answer{0%{background-color:#d4edda;}50%{background-color:#c3e6cb;}100%{background-color:#d4edda;}}.gja.zk1{animation:correct-answer 1s ease;}