:root{--primary-dark:#1e3c72;--primary-medium:#2a5298;--primary-light:#4facfe;--accent-blue:#00f2fe;--accent-orange:#ff7e5f;--text-dark:#333;--text-light:#777;--background-light:#f8f9fa;--white:#fff;--shadow:0 10px 30px #0000001a;--transition:all .3s ease}*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{color:var(--text-dark);background-color:var(--white);font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;line-height:1.6;overflow-x:hidden}a{color:inherit}.container{max-width:1200px;margin:0 auto;padding:0 2rem}.section{padding:100px 0}.section-alt{background:var(--background-light)}.section-title{text-align:center;color:var(--primary-dark);margin-bottom:4rem;font-size:2.8rem;position:relative}.section-title:after{content:"";background:linear-gradient(90deg, var(--accent-blue) 0%, var(--primary-light) 100%);border-radius:2px;width:100px;height:4px;position:absolute;bottom:-10px;left:50%;transform:translate(-50%)}.cta-button{background:linear-gradient(135deg, var(--accent-blue) 0%, var(--primary-light) 100%);color:var(--white);cursor:pointer;transition:var(--transition);border:none;border-radius:50px;padding:15px 40px;font-size:1.1rem;font-weight:700;text-decoration:none;display:inline-block;box-shadow:0 10px 30px #4facfe4d}.cta-button:hover{transform:translateY(-3px);box-shadow:0 15px 40px #4facfe66}main{padding-top:80px}@media (width<=768px){.section{padding:60px 0}.section-title{font-size:2.2rem}}header{-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);z-index:1000;width:100%;transition:var(--transition);background:#1e3c72f2;position:fixed;top:0;box-shadow:0 2px 20px #0000001a}.nav-container{justify-content:space-between;align-items:center;max-width:1200px;margin:0 auto;padding:1rem 2rem;display:flex}.logo{color:var(--white);align-items:center;font-size:1.8rem;font-weight:700;text-decoration:none;display:flex}.logo img{width:auto;height:40px;margin-right:10px}.nav-menu{gap:2rem;list-style:none;display:flex}.nav-menu a{color:var(--white);transition:var(--transition);padding:5px 0;font-weight:500;text-decoration:none;position:relative}.nav-menu a:hover{color:var(--accent-blue)}.nav-menu a:after{content:"";background:var(--accent-blue);width:0;height:2px;transition:var(--transition);position:absolute;bottom:0;left:0}.nav-menu a:hover:after{width:100%}.mobile-menu{color:var(--white);cursor:pointer;background:0 0;border:none;font-size:1.5rem;display:none}@media (width<=768px){.logo{font-size:1.2rem}.nav-menu{transition:var(--transition);background:#1e3c72fa;flex-direction:column;gap:0;padding:1rem 2rem;position:fixed;top:72px;left:0;right:0;transform:translateY(-150%)}.nav-menu.open{transform:translateY(0)}.nav-menu li{border-bottom:1px solid #ffffff1a;padding:.75rem 0}.mobile-menu{display:block}}.page-header{color:var(--white);text-align:center;background-position:50%;background-size:cover;padding-top:150px;padding-bottom:50px}.page-header h1{font-size:3rem}.hero{text-align:center;height:100vh;color:var(--white);background-color:#0000;background-image:linear-gradient(135deg,#1e3c72e6 0%,#2a5298e6 100%),url(/assets/construction-UFQ2joCW.jpg);background-position:50%;background-repeat:repeat,repeat;background-size:cover;background-attachment:scroll,scroll;background-origin:padding-box,padding-box;background-clip:border-box,border-box;justify-content:center;align-items:center;margin-top:-80px;padding-top:0;display:flex;position:relative;overflow:hidden}.hero-content{z-index:2;max-width:800px;padding:0 2rem}.hero h1{margin-bottom:1rem;font-size:3.5rem;animation:1s ease-out fadeInUp}.hero-tagline{opacity:.9;margin-bottom:2rem;font-size:1.5rem;animation:1s ease-out .3s both fadeInUp}.hero .cta-button{animation:1s ease-out .6s both fadeInUp}@keyframes fadeInUp{0%{opacity:0;transform:translateY(50px)}to{opacity:1;transform:translateY(0)}}@media (width<=768px){.hero h1{font-size:2.5rem}.hero-tagline{font-size:1.2rem}}.about-grid{grid-template-columns:1fr 1fr;align-items:center;gap:4rem;display:grid}.about-text{color:var(--text-light);font-size:1.1rem;line-height:1.8}.about-text h3{color:var(--primary-dark);margin-bottom:1rem;font-size:1.5rem}.about-text p+p{margin-top:1rem}.stats-grid{grid-template-columns:repeat(2,1fr);gap:2rem;margin-top:2rem;display:grid}.stat-item{text-align:center;background:var(--white);box-shadow:var(--shadow);transition:var(--transition);border-radius:15px;padding:2rem}.stat-item:hover{transform:translateY(-10px)}.stat-number{color:var(--primary-medium);font-size:2.5rem;font-weight:700}.stat-label{color:var(--text-light);font-weight:500}@media (width<=768px){.about-grid{grid-template-columns:1fr}.stats-grid{grid-template-columns:repeat(1,1fr)}}.services-grid{grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:2rem;display:grid}.service-card-link{color:inherit;text-decoration:none;display:block}.service-card{background:var(--white);box-shadow:var(--shadow);transition:var(--transition);border-radius:20px;height:100%;padding:2.5rem;position:relative;overflow:hidden}.service-card:before{content:"";background:linear-gradient(90deg, var(--accent-blue) 0%, var(--primary-light) 100%);height:5px;position:absolute;top:0;left:0;right:0}.service-card:hover{transform:translateY(-10px);box-shadow:0 25px 50px #00000026}.service-icon{background:linear-gradient(135deg, var(--accent-blue) 0%, var(--primary-light) 100%);width:70px;height:70px;color:var(--white);border-radius:15px;justify-content:center;align-items:center;margin-bottom:1.5rem;font-size:2rem;display:flex}.service-card h3{color:var(--primary-dark);margin-bottom:1rem;font-size:1.5rem}.service-card p{color:var(--text-light);line-height:1.6}.service-detail-content h3{color:var(--primary-dark);margin-top:2rem;margin-bottom:1rem;font-size:1.5rem}.service-detail-content ul{padding-left:1rem;list-style-position:inside}.service-detail-content li{margin-bottom:.5rem}.service-detail-content p{margin-bottom:1rem}.projects-grid{grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:2rem;display:grid}.project-card{box-shadow:var(--shadow);transition:var(--transition);border-radius:15px;overflow:hidden}.project-card:hover{transform:translateY(-10px)}.project-image{background-position:50%;background-size:cover;height:250px}.project-content{background:var(--white);padding:1.5rem}.project-content h3{color:var(--primary-dark);margin-bottom:.5rem}.project-content p{color:var(--text-light)}.contact-container{grid-template-columns:1fr 1fr;gap:4rem;display:grid}.contact-info{flex-direction:column;gap:2rem;display:flex}.contact-item{align-items:center;display:flex}.contact-icon{background:linear-gradient(135deg, var(--accent-blue) 0%, var(--primary-light) 100%);width:50px;height:50px;color:var(--white);border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;margin-right:1rem;font-size:1.2rem;display:flex}.contact-item h3{color:var(--primary-dark);font-size:1.1rem}.contact-item p{color:var(--text-light)}.contact-form{background:var(--white);box-shadow:var(--shadow);border-radius:15px;padding:2rem}.form-group{margin-bottom:1.5rem}.form-group label{color:var(--primary-dark);margin-bottom:.5rem;font-weight:500;display:block}.form-control{width:100%;transition:var(--transition);border:1px solid #ddd;border-radius:8px;padding:12px 15px;font-family:inherit;font-size:1rem}.form-control:focus{border-color:var(--primary-light);outline:none;box-shadow:0 0 0 3px #4facfe33}textarea.form-control{resize:vertical;min-height:150px}.submit-btn{background:linear-gradient(135deg, var(--accent-blue) 0%, var(--primary-light) 100%);color:var(--white);cursor:pointer;transition:var(--transition);border:none;border-radius:50px;padding:12px 30px;font-weight:700}.submit-btn:disabled{opacity:.6;cursor:not-allowed}.submit-btn:hover:not(:disabled){transform:translateY(-3px);box-shadow:0 10px 20px #4facfe4d}.form-feedback{text-align:center;border-radius:8px;margin-bottom:1.5rem;padding:1rem}.form-feedback.success{color:#155724;background-color:#d4edda;border:1px solid #c3e6cb}.form-feedback.error{color:#721c24;background-color:#f8d7da;border:1px solid #f5c6cb}@media (width<=768px){.contact-container{grid-template-columns:1fr}}footer{background:var(--primary-dark);color:var(--white);padding:4rem 0 2rem}.footer-content{grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:3rem;margin-bottom:3rem;display:grid}.footer-column h3{margin-bottom:1.5rem;padding-bottom:10px;font-size:1.3rem;position:relative}.footer-column h3:after{content:"";background:linear-gradient(90deg, var(--accent-blue) 0%, var(--primary-light) 100%);width:50px;height:3px;position:absolute;bottom:0;left:0}.footer-column p{color:#ffffffb3;margin-bottom:1rem}.social-links{gap:1rem;display:flex}.social-links a{width:40px;height:40px;color:var(--white);transition:var(--transition);background:#ffffff1a;border-radius:50%;justify-content:center;align-items:center;display:flex}.social-links a:hover{background:var(--accent-blue);transform:translateY(-3px)}.footer-links{list-style:none}.footer-links li{margin-bottom:.7rem}.footer-links a{color:#ffffffb3;transition:var(--transition);text-decoration:none}.footer-links a:hover{color:var(--accent-blue);padding-left:5px}.newsletter-form .form-control{color:var(--white);background:#ffffff1a;border:1px solid #fff3}.newsletter-form .form-control::placeholder{color:#fff9}.footer-bottom{text-align:center;color:#fff9;border-top:1px solid #ffffff1a;padding-top:2rem;font-size:.9rem}.modal-overlay{z-index:2000;background:#0009;justify-content:center;align-items:center;padding:1rem;display:flex;position:fixed;inset:0}.modal-content{background:var(--white);text-align:center;border-radius:20px;width:100%;max-width:420px;padding:2.5rem;position:relative}.close-button{cursor:pointer;color:var(--text-light);background:0 0;border:none;font-size:1.5rem;position:absolute;top:1rem;right:1.5rem}.modal-header-icon{background:linear-gradient(135deg, var(--accent-blue) 0%, var(--primary-light) 100%);width:70px;height:70px;color:var(--white);border-radius:50%;justify-content:center;align-items:center;margin:0 auto 1.5rem;font-size:1.8rem;display:flex}.modal-content h2{color:var(--primary-dark);margin-bottom:.5rem}.modal-content>p{color:var(--text-light);margin-bottom:2rem}.modal-actions{grid-template-columns:1fr 1fr;gap:1rem;display:grid}.modal-action{background:var(--background-light);color:var(--text-dark);transition:var(--transition);border-radius:12px;flex-direction:column;align-items:center;gap:.5rem;padding:1.2rem .5rem;font-size:.9rem;font-weight:500;text-decoration:none;display:flex}.modal-action:hover{box-shadow:var(--shadow);transform:translateY(-3px)}.modal-action i{font-size:1.5rem}.modal-action.whatsapp i{color:#25d366}.modal-action.call i{color:var(--primary-medium)}.modal-action.email i{color:var(--accent-orange)}.modal-action.map i{color:#ea4335}.back-to-top-btn{background:linear-gradient(135deg, var(--accent-blue) 0%, var(--primary-light) 100%);width:50px;height:50px;color:var(--white);box-shadow:var(--shadow);cursor:pointer;opacity:0;pointer-events:none;transition:var(--transition);z-index:900;border-radius:50%;justify-content:center;align-items:center;text-decoration:none;display:flex;position:fixed;bottom:2rem;right:2rem}.back-to-top-btn.visible{opacity:1;pointer-events:auto}.not-found{text-align:center;padding:180px 2rem 100px}