.hero{position:relative;background:linear-gradient(135deg,var(--primary-color) 0%,var(--secondary-color) 100%);min-height:600px;display:flex;align-items:center;color:var(--white);overflow:hidden}.hero:before{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background:url(https://images.pexels.com/photos/271667/pexels-photo-271667.jpeg?auto=compress&cs=tinysrgb&w=1920) center/cover;opacity:.3}.hero-overlay{position:absolute;top:0;left:0;right:0;bottom:0;background:linear-gradient(135deg,#2b9b9ed9,#42c2c4bf)}.hero-content{position:relative;z-index:2;text-align:center;padding:80px 0}.hero-content h1{font-size:3.5rem;margin-bottom:20px;font-weight:700;animation:fadeInUp .8s ease}.hero-content p{font-size:1.5rem;margin-bottom:40px;opacity:.95;animation:fadeInUp .8s ease .2s backwards}.hero-buttons{display:flex;gap:20px;justify-content:center;animation:fadeInUp .8s ease .4s backwards}@keyframes fadeInUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}.services-preview{padding:80px 0;background:var(--white)}.services-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:30px}.service-card{background:var(--white);padding:40px 30px;border-radius:12px;text-align:center;transition:all .3s ease;border:2px solid var(--border-color);position:relative;overflow:hidden}.service-card:before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--primary-color),var(--secondary-color));transform:scaleX(0);transition:transform .3s ease}.service-card:hover{transform:translateY(-10px);box-shadow:0 10px 30px #0000001a;border-color:var(--primary-color)}.service-card:hover:before{transform:scaleX(1)}.service-icon{font-size:3.5rem;margin-bottom:20px}.service-card h3{font-size:1.5rem;margin-bottom:15px;color:var(--text-dark)}.service-card p{color:var(--text-light);line-height:1.6}.products-section{padding:80px 0;background:var(--bg-light);position:relative}.products-section:before{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background:url(https://images.pexels.com/photos/1098982/pexels-photo-1098982.jpeg?auto=compress&cs=tinysrgb&w=1920) center/cover;opacity:.03;pointer-events:none}.products-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:20px;position:relative;z-index:1}.product-card{background:var(--white);padding:30px;border-radius:12px;display:flex;align-items:center;gap:15px;transition:all .3s ease;border:2px solid transparent}.product-card:hover{border-color:var(--primary-color);transform:translate(5px);box-shadow:0 4px 12px #0000001a}.product-icon{width:40px;height:40px;background:var(--primary-color);color:var(--white);border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;flex-shrink:0}.product-card h3{font-size:1.125rem;color:var(--text-dark);margin:0}.why-choose{padding:80px 0;background:var(--white)}.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:40px}.feature{text-align:center}.feature-icon{font-size:3rem;margin-bottom:20px}.feature h3{font-size:1.25rem;margin-bottom:15px;color:var(--text-dark)}.feature p{color:var(--text-light)}.cta-section{padding:80px 0;background:linear-gradient(135deg,var(--primary-color) 0%,var(--secondary-color) 100%);color:var(--white)}.cta-content{text-align:center}.cta-content h2{font-size:2.5rem;margin-bottom:20px}.cta-content p{font-size:1.25rem;margin-bottom:40px;opacity:.95}.cta-buttons{display:flex;gap:20px;justify-content:center}.projects-showcase{padding:80px 0;background:var(--bg-light)}.section-subtitle{text-align:center;color:var(--text-light);font-size:1.125rem;margin-top:-10px;margin-bottom:50px}.projects-showcase .projects-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(350px,1fr));gap:30px;margin-bottom:50px}.project-item{background:var(--white);border-radius:12px;overflow:hidden;box-shadow:0 4px 15px #00000014;transition:all .3s ease}.project-item:hover{transform:translateY(-10px);box-shadow:0 10px 30px #00000026}.project-item:hover .project-image img{transform:scale(1.1)}.project-overlay{position:absolute;top:15px;right:15px}.project-category{background:var(--primary-color);color:var(--white);padding:8px 16px;border-radius:20px;font-size:.875rem;font-weight:600}.project-info h3{font-size:1.25rem;color:var(--text-dark);margin-bottom:10px}.section-cta{text-align:center;margin-top:30px}.testimonials-section{padding:80px 0;background:var(--white)}.testimonials-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(350px,1fr));gap:30px}.testimonial-card{background:var(--bg-light);padding:30px;border-radius:12px;border-left:4px solid var(--primary-color);transition:all .3s ease;position:relative}.testimonial-card:hover{transform:translateY(-5px);box-shadow:0 8px 20px #0000001a}.testimonial-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:20px;gap:15px}.customer-info h4{font-size:1.125rem;color:var(--text-dark);margin-bottom:5px}.customer-location{color:var(--text-light);font-size:.875rem}.rating{display:flex;gap:2px;flex-shrink:0}.star{font-size:1rem}.testimonial-comment{color:var(--text-dark);line-height:1.7;margin-bottom:15px;font-style:italic}.project-type{color:var(--primary-color);font-weight:600;font-size:.9rem;margin:0}.loading{text-align:center;padding:40px;color:var(--text-light);font-size:1.125rem}@media (max-width: 768px){.hero-content h1{font-size:2rem}.hero-content p{font-size:1.125rem}.hero-buttons,.cta-buttons{flex-direction:column;align-items:center}.services-grid,.products-grid,.features-grid,.projects-showcase .projects-grid,.testimonials-grid{grid-template-columns:1fr}.project-image{height:200px}.cta-content h2{font-size:1.75rem}.cta-content p{font-size:1rem}}.about-content{padding:60px 0;background:var(--bg-light);position:relative}.about-content:before{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background:url(https://images.pexels.com/photos/1098982/pexels-photo-1098982.jpeg?auto=compress&cs=tinysrgb&w=1920) center/cover;opacity:.02;pointer-events:none}.about-intro{max-width:800px;margin:0 auto 60px;text-align:center;position:relative;z-index:1}.about-intro h2{font-size:2.5rem;margin-bottom:25px;color:var(--text-dark)}.about-intro p{font-size:1.125rem;line-height:1.8;color:var(--text-light)}.about-mission{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:30px;margin-bottom:80px;position:relative;z-index:1}.mission-card{background:var(--white);padding:40px 30px;border-radius:12px;text-align:center;box-shadow:0 2px 8px #00000014;transition:all .3s ease}.mission-card:hover{transform:translateY(-8px);box-shadow:0 12px 32px #00000026}.mission-icon{font-size:3.5rem;margin-bottom:20px}.mission-card h3{font-size:1.5rem;margin-bottom:15px;color:var(--primary-color)}.mission-card p{color:var(--text-light);line-height:1.7}.about-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:30px;margin-bottom:80px;padding:60px 0;background:linear-gradient(135deg,var(--primary-color) 0%,var(--secondary-color) 100%);border-radius:16px}.stat-item{text-align:center;color:var(--white);padding:20px}.stat-number{font-size:3rem;font-weight:700;margin-bottom:10px}.stat-label{font-size:1.125rem;opacity:.95}.about-features{margin-bottom:80px}.about-features h2{font-size:2.5rem;text-align:center;margin-bottom:50px;color:var(--text-dark)}.features-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(350px,1fr));gap:30px}.feature-item{background:var(--white);padding:30px;border-radius:12px;display:flex;gap:20px;align-items:flex-start;box-shadow:0 2px 8px #00000014;transition:all .3s ease}.feature-item:hover{transform:translate(5px);box-shadow:0 4px 16px #0000001f}.feature-icon{width:50px;height:50px;background:var(--primary-color);color:var(--white);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.5rem;font-weight:700;flex-shrink:0}.feature-content h3{font-size:1.25rem;margin-bottom:10px;color:var(--text-dark)}.feature-content p{color:var(--text-light);line-height:1.6}.about-commitment{background:var(--white);padding:50px;border-radius:12px;margin-bottom:80px;box-shadow:0 2px 8px #00000014}.about-commitment h2{font-size:2.5rem;margin-bottom:30px;color:var(--text-dark);text-align:center}.commitment-content ul{list-style:none;max-width:800px;margin:0 auto}.commitment-content li{padding:15px 0 15px 40px;font-size:1.125rem;line-height:1.7;color:var(--text-dark);position:relative;border-bottom:1px solid var(--border-color)}.commitment-content li:last-child{border-bottom:none}.commitment-content li:before{content:"✓";position:absolute;left:0;color:var(--primary-color);font-weight:700;font-size:1.5rem}.about-contact-cta{background:var(--white);padding:50px;border-radius:12px;text-align:center;box-shadow:0 2px 8px #00000014}.about-contact-cta h2{font-size:2.5rem;margin-bottom:20px;color:var(--text-dark)}.about-contact-cta>p{font-size:1.125rem;color:var(--text-light);margin-bottom:40px}.contact-info-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:30px;max-width:900px;margin:0 auto}.contact-item{display:flex;flex-direction:column;gap:8px}.contact-item strong{color:var(--text-dark);font-size:1.125rem}.contact-item a,.contact-item span{color:var(--primary-color);text-decoration:none;font-size:1.125rem;transition:color .3s ease}.contact-item a:hover{color:var(--secondary-color);text-decoration:underline}@media (max-width: 768px){.about-intro h2,.about-features h2,.about-commitment h2,.about-contact-cta h2{font-size:2rem}.about-stats{grid-template-columns:repeat(2,1fr);padding:40px 20px}.stat-number{font-size:2.5rem}.features-list{grid-template-columns:1fr}.about-commitment,.about-contact-cta{padding:30px 25px}.commitment-content li{font-size:1rem}.contact-info-grid{grid-template-columns:1fr}}.services-detail{padding:60px 0;background:var(--bg-light);position:relative}.services-detail:before{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background:url(https://images.pexels.com/photos/534220/pexels-photo-534220.jpeg?auto=compress&cs=tinysrgb&w=1920) center/cover;opacity:.02;pointer-events:none}.service-detail-card{background:var(--white);border-radius:12px;padding:40px;margin-bottom:30px;box-shadow:0 2px 8px #00000014;transition:all .3s ease;position:relative;z-index:1}.service-detail-card:hover{transform:translateY(-5px);box-shadow:0 8px 24px #0000001f}.service-detail-header{display:flex;gap:25px;margin-bottom:25px;align-items:flex-start}.service-detail-icon{font-size:3.5rem;flex-shrink:0}.service-detail-header h2{font-size:1.75rem;color:var(--primary-color);margin-bottom:10px}.service-detail-header p{color:var(--text-light);line-height:1.6}.service-detail-list{list-style:none;display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:15px}.service-detail-list li{padding:12px 0;color:var(--text-dark);font-size:1rem;display:flex;align-items:center;gap:10px}.process-section{padding:80px 0;background:var(--white)}.process-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:30px}.process-step{text-align:center;padding:30px 20px;background:var(--bg-light);border-radius:12px;transition:all .3s ease;position:relative}.process-step:hover{transform:translateY(-5px);background:var(--white);box-shadow:0 8px 20px #0000001a}.step-number{width:60px;height:60px;background:var(--primary-color);color:var(--white);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.5rem;font-weight:700;margin:0 auto 20px}.process-step h3{font-size:1.25rem;margin-bottom:15px;color:var(--text-dark)}.process-step p{color:var(--text-light);line-height:1.6}.cta-box{background:var(--white);padding:60px 40px;border-radius:16px;text-align:center;box-shadow:0 4px 24px #00000014}.cta-box h2{font-size:2rem;margin-bottom:20px;color:var(--text-dark)}.cta-box p{font-size:1.125rem;color:var(--text-light);margin-bottom:30px}@media (max-width: 768px){.service-detail-card{padding:25px}.service-detail-header{flex-direction:column;text-align:center}.service-detail-list,.process-grid{grid-template-columns:1fr}.cta-box{padding:40px 25px}}.projects-content{padding:60px 0;background:var(--bg-light);min-height:60vh}.filter-tabs{display:flex;gap:15px;justify-content:center;margin-bottom:50px;flex-wrap:wrap}.filter-tabs button{padding:10px 24px;border:2px solid var(--border-color);background:var(--white);color:var(--text-dark);border-radius:8px;cursor:pointer;font-weight:500;transition:all .3s ease}.filter-tabs button:hover{border-color:var(--primary-color);color:var(--primary-color)}.filter-tabs button.active{background:var(--primary-color);color:var(--white);border-color:var(--primary-color)}.projects-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(350px,1fr));gap:30px}.project-card{background:var(--white);border-radius:12px;overflow:hidden;box-shadow:0 2px 8px #00000014;transition:all .3s ease}.project-card:hover{transform:translateY(-8px);box-shadow:0 12px 32px #00000026}.project-image{position:relative;width:100%;height:250px;overflow:hidden}.project-image img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}.project-card:hover .project-image img{transform:scale(1.1)}.project-category{position:absolute;top:15px;right:15px;background:var(--primary-color);color:var(--white);padding:6px 16px;border-radius:6px;font-size:.875rem;font-weight:600}.project-info{padding:25px}.project-info h3{font-size:1.25rem;margin-bottom:12px;color:var(--text-dark)}.project-info p{color:var(--text-light);line-height:1.6}.no-projects{text-align:center;padding:80px 20px}.no-projects p{font-size:1.125rem;color:var(--text-light)}@media (max-width: 768px){.projects-grid{grid-template-columns:1fr}.filter-tabs{gap:10px}.filter-tabs button{padding:8px 16px;font-size:.9rem}}.contact-content{padding:60px 0;background:var(--bg-light)}.contact-grid{display:grid;grid-template-columns:1fr 1.5fr;gap:40px}.contact-info-section h2,.contact-form-section h2{font-size:1.75rem;margin-bottom:30px;color:var(--text-dark)}.info-card{background:var(--white);padding:25px;border-radius:12px;margin-bottom:20px;display:flex;gap:20px;align-items:flex-start;box-shadow:0 2px 8px #00000014;transition:all .3s ease}.info-card:hover{transform:translate(5px);box-shadow:0 4px 12px #0000001f}.info-icon{font-size:2rem;flex-shrink:0}.info-card h3{font-size:1.125rem;margin-bottom:8px;color:var(--text-dark)}.info-card p{color:var(--text-light);line-height:1.6;margin:4px 0}.info-card a{color:var(--primary-color);text-decoration:none;font-weight:600;transition:color .3s ease}.info-card a:hover{color:var(--secondary-color)}.contact-form-section{background:var(--white);padding:40px;border-radius:12px;box-shadow:0 2px 8px #00000014}.alert{padding:15px 20px;border-radius:8px;margin-bottom:25px;font-weight:500}.alert-success{background:#d4edda;color:#155724;border:1px solid #c3e6cb}.alert-error{background:#f8d7da;color:#721c24;border:1px solid #f5c6cb}.contact-form{display:flex;flex-direction:column;gap:20px}.form-group{display:flex;flex-direction:column}.form-group label{font-weight:600;margin-bottom:8px;color:var(--text-dark)}.form-group input,.form-group select,.form-group textarea{padding:12px 16px;border:2px solid var(--border-color);border-radius:8px;font-size:1rem;font-family:inherit;transition:all .3s ease}.form-group input:focus,.form-group select:focus,.form-group textarea:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 3px #2c5f8d1a}.form-group textarea{resize:vertical;min-height:120px}.contact-form .btn{margin-top:10px;font-size:1.125rem}.contact-form .btn:disabled{opacity:.6;cursor:not-allowed}@media (max-width: 968px){.contact-grid{grid-template-columns:1fr}.contact-form-section{padding:30px 25px}}.header{background:var(--white);box-shadow:0 2px 8px #0000001a;position:sticky;top:0;z-index:100}.header-content{display:flex;justify-content:space-between;align-items:center;padding:20px 0}.logo{display:flex;align-items:center;gap:12px;text-decoration:none;transition:transform .3s ease}.logo:hover{transform:scale(1.05)}.logo-image{height:50px;width:auto;object-fit:contain}.nav{display:flex;gap:32px;align-items:center}.nav a{text-decoration:none;color:var(--text-dark);font-weight:500;position:relative;transition:color .3s ease}.nav a:after{content:"";position:absolute;bottom:-5px;left:0;width:0;height:2px;background:var(--primary-color);transition:width .3s ease}.nav a:hover,.nav a.active{color:var(--primary-color)}.nav a:hover:after,.nav a.active:after{width:100%}.phone-button{display:flex;align-items:center;gap:8px;padding:10px 20px;background:var(--primary-color);color:var(--white);border-radius:8px;text-decoration:none;font-weight:600;transition:all .3s ease}.phone-button:hover{background:var(--secondary-color);transform:translateY(-2px);box-shadow:0 4px 12px #2c5f8d4d}@media (max-width: 768px){.header-content{flex-direction:column;gap:20px}.nav{gap:20px;flex-wrap:wrap;justify-content:center}.header-contact{width:100%;text-align:center}.phone-button{display:inline-flex}}.footer{background:var(--text-dark);color:var(--white);padding:60px 0 20px;margin-top:80px}.footer-content{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:40px;margin-bottom:40px}.footer-section h3{font-size:1.25rem;margin-bottom:20px;color:var(--white)}.footer-section p{line-height:1.8;opacity:.9}.contact-info p{margin-bottom:12px}.social-links{display:flex;gap:20px;flex-direction:column}.social-links a{color:var(--white);text-decoration:none;opacity:.9;transition:all .3s ease;display:inline-block}.social-links a:hover{opacity:1;transform:translate(5px)}.footer-bottom{text-align:center;padding-top:30px;border-top:1px solid rgba(255,255,255,.1);opacity:.8}@media (max-width: 768px){.footer-content{grid-template-columns:1fr;gap:30px}}.floating-cta{position:fixed;bottom:30px;right:30px;z-index:1000;display:flex;flex-direction:column;align-items:flex-end;gap:15px}.cta-toggle{width:60px;height:60px;border-radius:50%;background:linear-gradient(135deg,var(--primary-color),var(--secondary-color));color:var(--white);border:none;font-size:1.5rem;cursor:pointer;box-shadow:0 4px 20px #0003;transition:all .3s ease;display:flex;align-items:center;justify-content:center;animation:pulse 2s infinite}.cta-toggle:hover{transform:scale(1.1);box-shadow:0 6px 30px #0000004d}.expanded .cta-toggle{animation:none;background:#e74c3c}@keyframes pulse{0%{box-shadow:0 4px 20px #0003}50%{box-shadow:0 4px 30px #2b9b9e99}to{box-shadow:0 4px 20px #0003}}.cta-buttons{display:flex;flex-direction:column;gap:12px;opacity:0;transform:translateY(20px);pointer-events:none;transition:all .3s ease}.expanded .cta-buttons{opacity:1;transform:translateY(0);pointer-events:all}.cta-button{display:flex;align-items:center;gap:10px;padding:12px 20px;border-radius:30px;border:none;font-size:1rem;font-weight:600;cursor:pointer;box-shadow:0 4px 15px #00000026;transition:all .3s ease;white-space:nowrap}.cta-button:hover{transform:translate(-5px);box-shadow:0 6px 25px #0003}.cta-call{background:linear-gradient(135deg,#27ae60,#2ecc71);color:var(--white)}.cta-call:hover{background:linear-gradient(135deg,#229954,#27ae60)}.cta-zalo{background:linear-gradient(135deg,#0068ff,#0084ff);color:var(--white)}.cta-zalo:hover{background:linear-gradient(135deg,#0052cc,#0068ff)}.cta-icon{font-size:1.25rem;display:flex;align-items:center;justify-content:center}.cta-text{font-size:.95rem}.cta-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#0000004d;z-index:999;animation:fadeIn .3s ease}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@media (max-width: 768px){.floating-cta{bottom:20px;right:20px}.cta-toggle{width:55px;height:55px;font-size:1.3rem}.cta-button{padding:10px 16px;font-size:.9rem}.cta-icon{font-size:1.1rem}.cta-text{font-size:.875rem}}@media (max-width: 480px){.cta-toggle{width:50px;height:50px;font-size:1.2rem}.cta-button{padding:10px 14px}}.app{min-height:100vh;display:flex;flex-direction:column}main{flex:1}*{margin:0;padding:0;box-sizing:border-box}:root{--primary-color: #2B9B9E;--secondary-color: #42C2C4;--accent-color: #1F7B7D;--text-dark: #2c3e50;--text-light: #7f8c8d;--bg-light: #f8f9fa;--white: #ffffff;--border-color: #e0e0e0;--success-color: #27ae60;--error-color: #e74c3c}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;color:var(--text-dark);line-height:1.6}.container{max-width:1200px;margin:0 auto;padding:0 20px}.section-title{font-size:2.5rem;text-align:center;margin-bottom:3rem;color:var(--text-dark);font-weight:700}.btn{display:inline-block;padding:12px 32px;border-radius:8px;text-decoration:none;font-weight:600;transition:all .3s ease;cursor:pointer;border:none;font-size:1rem}.btn-primary{background:var(--primary-color);color:var(--white)}.btn-primary:hover{background:var(--secondary-color);transform:translateY(-2px);box-shadow:0 4px 12px #2c5f8d4d}.btn-secondary{background:var(--white);color:var(--primary-color);border:2px solid var(--primary-color)}.btn-secondary:hover{background:var(--primary-color);color:var(--white);transform:translateY(-2px)}.page-header{background:linear-gradient(135deg,var(--primary-color) 0%,var(--secondary-color) 100%);color:var(--white);padding:80px 0 60px;text-align:center}.page-header h1{font-size:3rem;margin-bottom:1rem}.page-header p{font-size:1.25rem;opacity:.9}.loading{text-align:center;padding:60px 0;font-size:1.25rem;color:var(--text-light)}@media (max-width: 768px){.section-title,.page-header h1{font-size:2rem}.page-header p{font-size:1rem}}