#advantages{padding:80px 0;background-color:white}.advantages-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:30px;max-width:100%!important;width:100%!important;margin:0 auto!important;padding:0!important;box-sizing:border-box!important}.advantage-card{background:white;border-radius:10px;padding:40px 30px;box-shadow:0 5px 15px rgba(0,0,0,0.1);transition:all 0.3s ease;text-align:center;border:1px solid #e9ecef}.advantage-card:hover{transform:translateY(-10px);box-shadow:0 15px 30px rgba(0,0,0,0.15)}.advantage-icon{font-size:3rem;color:var(--primary);margin-bottom:25px;transition:all 0.3s ease}.advantage-card:hover .advantage-icon{color:var(--secondary);transform:scale(1.1)}.advantage-card h3{font-size:1.3rem;margin-bottom:15px;color:var(--primary)}.advantage-card p{color:var(--dark);line-height:1.6;font-size:1rem}#principles{padding:80px 0}.principles-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:30px;max-width:1920px;margin:0 auto;padding:0 5%}.principle-card{background:white;border-radius:10px;padding:40px;box-shadow:0 5px 15px rgba(0,0,0,0.1);transition:all 0.3s ease;text-align:center}.principle-card:hover{transform:translateY(-5px);box-shadow:0 10px 25px rgba(0,0,0,0.15)}.principle-icon{width:80px;height:80px;border-radius:50%;display:flex;align-items:center;justify-content:center;margin:0 auto 25px;font-size:2rem;transition:all 0.3s ease}.principle-icon.lifo{background-color:rgba(0,86,179,0.1);color:var(--primary)}.principle-icon.fifo{background-color:rgba(249,115,22,0.1);color:var(--secondary)}.principle-card:hover .principle-icon{transform:scale(1.1) rotate(5deg)}.principle-card h3{font-size:1.5rem;margin-bottom:20px;color:var(--primary)}.principle-card p{color:var(--dark);line-height:1.6}#comparison{padding:80px 0;background-color:white}.comparison-table{max-width:1920px;margin:0 auto;padding:0 5%;overflow-x:auto}.comparison-table table{width:100%;border-collapse:collapse;margin:30px 0;box-shadow:0 5px 15px rgba(0,0,0,0.1)}.comparison-table th,.comparison-table td{padding:15px 20px;text-align:left;border:1px solid #e9ecef}.comparison-table th{background-color:var(--primary);color:white;font-weight:600}.comparison-table tr:nth-child(even){background-color:#f8f9fa}.comparison-table tr:hover{background-color:rgba(0,86,179,0.05)}.comparison-table td:first-child{font-weight:600;color:var(--primary)}#projects{padding:80px 0;background-color:#f9f9f9}.project-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:30px;max-width:1920px;margin:0 auto;padding:0 5%}.project-card{background:white;border-radius:10px;overflow:hidden;box-shadow:0 5px 15px rgba(0,0,0,0.1);transition:all 0.3s ease;display:flex;flex-direction:column}.project-card:hover{transform:translateY(-10px);box-shadow:0 15px 30px rgba(0,0,0,0.15)}.project-image{height:250px;overflow:hidden}.project-image img{width:100%;height:100%;object-fit:cover;transition:transform 0.5s ease}.project-card:hover .project-image img{transform:scale(1.05)}.project-content{padding:30px;flex-grow:1;display:flex;flex-direction:column}.project-content h3{font-size:1.3rem;margin-bottom:15px;color:var(--primary)}.project-content ul{list-style:none;padding:0;margin:0;flex-grow:1}.project-content ul li{margin-bottom:10px;padding-left:25px;position:relative;color:var(--dark)}.project-content ul li::before{content:"•";color:var(--secondary);font-size:1.5rem;position:absolute;left:0;top:-5px}.project-content ul li strong{color:var(--primary)}#faq{padding:80px 0}.faq-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;max-width:1920px;margin:0 auto;padding:0 5%}.faq-item{background:white;border-radius:10px;box-shadow:0 5px 15px rgba(0,0,0,0.1);overflow:hidden}.faq-question{padding:25px;display:flex;justify-content:space-between;align-items:center;cursor:pointer;transition:all 0.3s ease}.faq-question:hover{background-color:#f8f9fa}.faq-question h3{font-size:1.2rem;color:var(--primary);margin:0;flex:1}.faq-question i{color:var(--secondary);transition:transform 0.3s ease}.faq-answer{padding:0 25px;max-height:0;overflow:hidden;transition:max-height 0.5s ease,padding 0.3s ease}.faq-answer p{color:var(--dark);line-height:1.6;margin:0 0 25px}.faq-item.active .faq-answer{max-height:500px;padding-bottom:25px}.faq-item.active .faq-question i{transform:rotate(180deg)}@media (max-width:1600px){.advantages-grid,.project-cards{grid-template-columns:repeat(3,1fr)}}@media (max-width:1200px){.advantages-grid{grid-template-columns:repeat(2,1fr)}.project-cards{grid-template-columns:repeat(2,1fr)}.faq-grid{grid-template-columns:1fr}}@media (max-width:992px){.advantage-card{padding:30px 20px}.advantage-icon{font-size:2.5rem;margin-bottom:20px}.principle-card{padding:30px}.principle-icon{width:70px;height:70px;font-size:1.8rem}.project-image{height:200px}}@media (max-width:768px){.advantages-grid,.principles-grid{grid-template-columns:1fr}.project-cards{grid-template-columns:1fr}.advantage-card,.principle-card{padding:25px}.comparison-table th,.comparison-table td{padding:12px 15px;font-size:0.9rem}}@media (max-width:480px){.advantage-icon{font-size:2rem}.advantage-card h3{font-size:1.2rem}.principle-card h3{font-size:1.3rem}.project-content{padding:20px}.faq-question{padding:20px}.faq-question h3{font-size:1.1rem}}.installation-section{padding:80px 0;background-color:#f9f9f9}.section-header{text-align:center;margin-bottom:60px}.section-subtitle{font-size:1.2rem;color:#000000;max-width:700px;margin:0 auto}.installation-process{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:40px;margin-bottom:60px}.process-step{background:white;border-radius:8px;overflow:hidden;box-shadow:0 5px 15px rgba(0,0,0,0.1);transition:transform 0.3s ease}.process-step:hover{transform:translateY(-10px)}.step-visual img{width:100%;height:250px;object-fit:cover}.step-content{padding:25px}.step-content h3{font-size:1.5rem;color:#2c3e50;margin-bottom:15px}.step-content p{color:#000000;line-height:1.6}.safety-features{background:white;padding:40px;border-radius:8px;box-shadow:0 5px 15px rgba(0,0,0,0.1)}.safety-features h3{text-align:center;font-size:1.8rem;color:#2c3e50;margin-bottom:40px}.feature-card{text-align:center;padding:25px;border-radius:8px;background:#f9f9f9;transition:all 0.3s ease}.feature-card:hover{background:#e8f4fc;transform:translateY(-5px)}.feature-icon{width:60px;height:60px;margin-bottom:20px;fill:#3498db}.feature-card h4{font-size:1.2rem;color:#2c3e50;margin-bottom:10px}.feature-card p{color:#000000;font-size:0.95rem;line-height:1.5}.portfolio-section{padding:80px 0;background-color:#fff}.portfolio-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(350px,1fr));gap:30px;margin-bottom:50px}.project-card{border-radius:8px;overflow:hidden;box-shadow:0 5px 15px rgba(0,0,0,0.1);transition:all 0.3s ease}.project-card:hover{transform:translateY(-10px);box-shadow:0 15px 30px rgba(0,0,0,0.15)}.project-image img{width:100%;height:250px;object-fit:cover}.project-info{padding:25px;background:white}.project-info h3{font-size:1.4rem;color:#2c3e50;margin-bottom:5px}.location{color:#3498db;font-weight:600;margin-bottom:15px;display:flex;align-items:center}.location:before{content:"📍";margin-right:5px}.project-desc{color:#7f8c8d;margin-bottom:15px;line-height:1.5}.project-features{list-style:none;padding:0;margin:0}.project-features li{padding:5px 0;color:#34495e;font-size:0.95rem;position:relative;padding-left:20px}.project-features li:before{content:"✓";color:#27ae60;position:absolute;left:0}.portfolio-cta{text-align:center;padding:30px;background:#f8f9fa;border-radius:8px;margin-top:40px}.portfolio-cta p{font-size:1.2rem;color:#2c3e50;margin-bottom:20px}.cta-button{display:inline-block;padding:12px 30px;background-color:#3498db;color:white;text-decoration:none;border-radius:50px;font-weight:600;transition:all 0.3s ease}.cta-button:hover{background-color:#2980b9;transform:translateY(-3px);box-shadow:0 5px 15px rgba(41,128,185,0.3)}@media (max-width:768px){.installation-process{grid-template-columns:1fr}.portfolio-grid{grid-template-columns:1fr}}