:root{--primary-color:#4361ee;--secondary-color:#3a0ca3;--accent-color:#4cc9f0;--success-color:#4ade80;--warning-color:#facc15;--danger-color:#f87171;--light-bg:#f8fafc;--dark-text:#1e293b;--border-color:#e2e8f0;--card-shadow:0 4px 6px -1px rgba(0,0,0,0.1),0 2px 4px -1px rgba(0,0,0,0.06);--transition:all 0.3s ease;}body{font-family:'Segoe UI',Tahoma,Geneva,Verdana,sans-serif;margin:0;padding:0;background-color:var(--light-bg);color:var(--dark-text);line-height:1.6;}.up4{background:linear-gradient(135deg,var(--primary-color),var(--secondary-color));color:white;padding:80px 0;text-align:center;}.fp3 h1{font-size:3rem;margin-bottom:1rem;font-weight:700;}.fp3 p{font-size:1.2rem;max-width:800px;margin:0 auto 2rem;opacity:0.9;}.hiR{background-color:white;color:var(--primary-color);padding:12px 30px;border:none;border-radius:50px;font-size:1.1rem;font-weight:600;cursor:pointer;transition:var(--transition);}.hiR:hover{transform:translateY(-3px);box-shadow:0 10px 20px rgba(0,0,0,0.2);}.cBR{margin:40px 0;text-align:center;}.cBR h2{font-size:2.5rem;color:var(--secondary-color);margin-bottom:1rem;}.cBR p{font-size:1.2rem;color:var(--dark-text);max-width:800px;margin:0 auto;}.o58{display:flex;flex-wrap:wrap;justify-content:center;gap:15px;margin:20px 0;}.bNb{background-color:white;color:var(--primary-color);padding:10px 20px;border-radius:50px;display:flex;align-items:center;gap:8px;font-weight:600;box-shadow:var(--card-shadow);border:1px solid var(--border-color);}.card{border:none;border-radius:12px;overflow:hidden;transition:var(--transition);box-shadow:var(--card-shadow);margin-bottom:25px;}.card:hover{transform:translateY(-5px);box-shadow:0 10px 25px rgba(0,0,0,0.1);}.card-body{padding:25px;}.lfH{height:100%;background:linear-gradient(to bottom right,#ffffff,#f0f9ff);}.b2F{text-align:center;margin-bottom:20px;}.l0G{text-align:center;background:linear-gradient(to bottom right,#ffffff,#f0fdf4);padding:25px 20px;}.iUy{margin-bottom:15px;}.l0G h3{color:var(--secondary-color);margin-bottom:15px;}.cp6{margin-top:15px;font-size:0.9rem;}.s7n{background-color:white;border-radius:12px;padding:25px;margin-bottom:30px;box-shadow:var(--card-shadow);border:1px solid var(--border-color);}.jbn{margin-bottom:20px;}.jbn h3{color:var(--secondary-color);margin-bottom:10px;}.xoB{margin:20px 0;padding:20px;background-color:#f8fafc;border-radius:8px;}.zOT{display:flex;flex-wrap:wrap;gap:25px;margin:20px 0;}.uop,.lPZ{flex:1;min-width:300px;background-color:#f1f5f9;padding:15px;border-radius:8px;text-align:center;}.gdX,.hri{font-weight:600;margin-top:10px;color:var(--dark-text);}.exX,.aym{flex:1;min-width:300px;}.zf2{display:grid;grid-template-columns:repeat(auto-fit,minmax(120px,1fr));gap:15px;margin:20px 0;}.trS{background-color:#f1f5f9;padding:15px;border-radius:8px;text-align:center;}.eRK{font-size:0.9rem;color:#64748b;margin-bottom:5px;}.eTH{font-size:1.2rem;font-weight:600;color:var(--primary-color);}.gZd,.m1w{margin-top:20px;}.m1w{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:15px;}.aBJ{text-align:center;}.zRr{font-size:0.9rem;margin-top:8px;color:var(--dark-text);}.pQa{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px;}.pQa .btn{flex:1;min-width:120px;margin-bottom:10px;}.bMv{background-color:white;border-radius:12px;padding:25px;box-shadow:var(--card-shadow);border:1px solid var(--border-color);height:100%;}.bMv h3{color:var(--secondary-color);margin-bottom:15px;}.zoY{margin:20px 0;}.geS{margin-top:20px;padding:15px;background-color:#f8fafc;border-radius:8px;border-left:4px solid var(--primary-color);}.a8E{background-color:white;border-radius:12px;padding:25px;box-shadow:var(--card-shadow);border:1px solid var(--border-color);height:100%;}.a8E h3{color:var(--secondary-color);margin-bottom:15px;}.a8E ul{padding-left:20px;}.a8E li{margin-bottom:8px;}.accordion .card{margin-bottom:10px;border:1px solid var(--border-color);}.accordion .card-header{background-color:white;border:none;padding:0;}.btn-link{width:100%;text-align:left;padding:15px 20px;color:var(--secondary-color);font-weight:600;text-decoration:none !important;}.btn-link:hover{color:var(--primary-color);}.lsP{background-color:white;border-radius:12px;padding:25px;box-shadow:var(--card-shadow);border:1px solid var(--border-color);}.lsP h4{color:var(--secondary-color);margin-bottom:15px;}.options{margin:15px 0;}.form-check{margin-bottom:10px;}.wom{margin-top:10px;padding:10px;border-radius:5px;display:none;}.wom.correct{background-color:#dcfce7;color:#166534;display:block;}.wom.incorrect{background-color:#fee2e2;color:#b91c1c;display:block;}.f6Y{background:linear-gradient(to bottom right,#ffffff,#f0f9ff);border-radius:12px;padding:25px 15px;text-align:center;cursor:pointer;transition:var(--transition);border:1px solid var(--border-color);height:100%;}.f6Y:hover{transform:translateY(-5px);box-shadow:0 10px 25px rgba(0,0,0,0.1);background:linear-gradient(to bottom right,#f0f9ff,#e0f2fe);}.cJo{margin-bottom:15px;}.f6Y h4{color:var(--secondary-color);margin-bottom:10px;}.form-control{border-radius:8px;padding:10px 15px;border:1px solid var(--border-color);transition:var(--transition);}.form-control:focus{border-color:var(--primary-color);box-shadow:0 0 0 0.2rem rgba(67,97,238,0.25);}.form-control-range{width:100%;}.btn{border-radius:8px;padding:10px 20px;font-weight:600;transition:var(--transition);border:none;}.btn-primary{background-color:var(--primary-color);color:white;}.btn-primary:hover{background-color:#3651e0;transform:translateY(-2px);}.btn-secondary{background-color:var(--secondary-color);color:white;}.btn-secondary:hover{background-color:#2d098a;transform:translateY(-2px);}.btn-warning{background-color:var(--warning-color);color:#1e293b;}.btn-warning:hover{background-color:#e2b80d;transform:translateY(-2px);}.btn-success{background-color:var(--success-color);color:white;}.btn-success:hover{background-color:#3dd775;transform:translateY(-2px);}.btn-info{background-color:var(--accent-color);color:white;}.btn-info:hover{background-color:#3ab0d6;transform:translateY(-2px);}canvas{background-color:white;border-radius:8px;border:1px solid var(--border-color);width:100%;max-width:400px;height:auto;}@media (max-width:768px){.fp3 h1{font-size:2.2rem;}.cBR h2{font-size:2rem;}.zOT{flex-direction:column;}.uop,.lPZ,.exX,.aym{min-width:100%;}.pQa .btn{min-width:auto;}.zf2{grid-template-columns:repeat(2,1fr);}.m1w{grid-template-columns:repeat(2,1fr);}}@media (max-width:576px){.up4{padding:60px 0;}.fp3 h1{font-size:1.8rem;}.cBR h2{font-size:1.8rem;}.bNb{font-size:0.9rem;padding:8px 15px;}.s7n{padding:15px;}.zf2{grid-template-columns:1fr;}.m1w{grid-template-columns:1fr;}}.fade-in{animation:fadeIn 0.5s ease-in;}@keyframes fadeIn{from{opacity:0;transform:translateY(10px);}to{opacity:1;transform:translateY(0);}}.n7m{animation:slideUp 0.6s ease-out;}@keyframes slideUp{from{opacity:0;transform:translateY(30px);}to{opacity:1;transform:translateY(0);}}.tooltip{font-family:'Segoe UI',Tahoma,Geneva,Verdana,sans-serif;}.rZD{background-color:#f0f9ff;border-left:4px solid var(--primary-color);padding:15px;border-radius:0 8px 8px 0;margin-top:15px;}.rZD h5{color:var(--secondary-color);margin-bottom:5px;}.s8Z{margin-top:20px;}.xc8{display:flex;margin-bottom:20px;padding:15px;background-color:#f8fafc;border-radius:8px;border-left:4px solid var(--primary-color);}.krh{background-color:var(--primary-color);color:white;width:30px;height:30px;border-radius:50%;display:flex;align-items:center;justify-content:center;flex-shrink:0;margin-right:15px;font-weight:bold;}.bVx .dmU{color:var(--secondary-color);margin-bottom:5px;}