*{margin:0;padding:0;box-sizing:border-box}
:root{--primary:#1a5da6;--primary-light:#4a95dc;--accent:#c41e2a;--dark:#0c2340;--light:#f5f7fa;--gray:#6c757d}
html{scroll-behavior:smooth}
body{font-family:'Segoe UI',system-ui,-apple-system,sans-serif;color:#333;line-height:1.6}
a{text-decoration:none;color:inherit}
ul{list-style:none}
img{max-width:100%;display:block}

/* Nav */
.navbar{position:fixed;top:0;width:100%;z-index:1000;padding:1rem 5%;display:flex;justify-content:space-between;align-items:center;transition:all .3s}
.navbar.scrolled{background:rgba(12,35,64,.97);padding:.6rem 5%;box-shadow:0 2px 20px rgba(0,0,0,.3)}
.logo{display:flex;align-items:center;gap:.5rem}
.logo img{height:45px}
.nav-links{display:flex;gap:2rem;align-items:center}
.nav-links a{color:#fff;font-size:.95rem;transition:color .3s}
.nav-links a:hover,.nav-links a.active{color:var(--primary-light)}
.lang-btn{background:var(--accent);color:#fff;border:none;padding:.4rem 1rem;border-radius:4px;cursor:pointer;font-size:.85rem;font-weight:600;transition:background .3s}
.lang-btn:hover{background:#a01820}
.hamburger{display:none;flex-direction:column;gap:5px;cursor:pointer;background:none;border:none}
.hamburger span{width:25px;height:2px;background:#fff;transition:all .3s}

/* Hero */
.hero{height:100vh;background:linear-gradient(rgba(12,35,64,.6),rgba(12,35,64,.7)),url('../images/hero-slide1.jpg') center/cover no-repeat;display:flex;align-items:center;justify-content:center;text-align:center;color:#fff}
.hero-content h1{font-size:3rem;margin-bottom:1rem;font-weight:700}
.hero-content p{font-size:1.15rem;max-width:700px;margin:0 auto 2rem;opacity:.9}
.hero-stats{display:flex;gap:3rem;justify-content:center;margin-top:2.5rem}
.stat-item h3{font-size:2.5rem;color:var(--primary-light);font-weight:700}
.stat-item p{font-size:.9rem;opacity:.8}
.btn{display:inline-block;padding:.8rem 2rem;border-radius:4px;font-weight:600;transition:all .3s}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:#a01820;transform:translateY(-2px)}
.btn-outline{border:2px solid #fff;color:#fff;margin-left:1rem}
.btn-outline:hover{background:#fff;color:var(--dark)}

/* Page Banner */
.page-banner{height:300px;background:linear-gradient(rgba(12,35,64,.7),rgba(12,35,64,.8)),url('../images/banner.jpg') center/cover no-repeat;display:flex;align-items:center;justify-content:center;text-align:center;color:#fff;margin-top:0}
.page-banner h1{font-size:2.5rem;font-weight:700}
.page-banner .breadcrumb{margin-top:.5rem;opacity:.8;font-size:.95rem}
.page-banner .breadcrumb a{color:var(--primary-light)}

/* Sections */
section{padding:5rem 5%}
.section-header{text-align:center;margin-bottom:3rem}
.section-header h2{font-size:2.2rem;color:var(--primary);margin-bottom:.5rem}
.section-header .line{width:60px;height:3px;background:var(--accent);margin:0 auto}

/* About */
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:4rem;align-items:center;max-width:1200px;margin:0 auto}
.about-img{border-radius:8px;overflow:hidden;box-shadow:0 10px 30px rgba(0,0,0,.15)}
.about-text h3{font-size:1.5rem;color:var(--primary);margin-bottom:1rem}
.about-text p{margin-bottom:1rem;color:#555}
.about-highlights{display:grid;grid-template-columns:1fr 1fr;gap:1rem;margin-top:1.5rem}
.highlight-item{display:flex;align-items:center;gap:.5rem;font-weight:500;color:var(--primary)}
.highlight-item::before{content:"\2713";color:var(--accent);font-weight:700}

/* Services */
.services{background:var(--light)}
.services-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:2rem;max-width:1200px;margin:0 auto}
.service-card{background:#fff;border-radius:8px;overflow:hidden;box-shadow:0 5px 20px rgba(0,0,0,.08);transition:transform .3s}
.service-card:hover{transform:translateY(-5px)}
.service-card img{height:200px;width:100%;object-fit:cover}
.service-card-body{padding:1.5rem}
.service-card-body h3{color:var(--primary);margin-bottom:.5rem;font-size:1.1rem}
.service-card-body p{color:#666;font-size:.9rem}

/* Projects grid */
.projects-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:2rem;max-width:1200px;margin:0 auto}
a.project-card{display:block;text-decoration:none;color:inherit}
.project-card{position:relative;border-radius:8px;overflow:hidden;height:300px;cursor:pointer}
.project-card img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.project-card:hover img{transform:scale(1.05)}
.project-overlay{position:absolute;bottom:0;left:0;right:0;padding:1.5rem;background:linear-gradient(transparent,rgba(0,0,0,.8));color:#fff;transform:translateY(20px);opacity:0;transition:all .3s}
.project-card:hover .project-overlay{transform:translateY(0);opacity:1}
.project-overlay h3{font-size:1.1rem;margin-bottom:.3rem}
.project-overlay p{font-size:.85rem;opacity:.8}

/* Qualifications */
.qual-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1.5rem;max-width:1200px;margin:0 auto}
.qual-card{background:#fff;border-radius:8px;overflow:hidden;box-shadow:0 3px 15px rgba(0,0,0,.08);transition:transform .3s;cursor:pointer}
.qual-card:hover{transform:translateY(-3px)}
.qual-card img{width:100%;height:220px;object-fit:contain;background:#fafafa;padding:.5rem}

/* Lightbox */
.lightbox{display:none;position:fixed;inset:0;background:rgba(0,0,0,.85);z-index:2000;align-items:center;justify-content:center}
.lightbox.active{display:flex}
.lightbox img{max-width:90vw;max-height:90vh;border-radius:4px}
.lightbox-close{position:absolute;top:1.5rem;right:2rem;color:#fff;font-size:2.5rem;cursor:pointer;line-height:1}

/* Project Detail */
.project-detail{max-width:1000px;margin:0 auto}
.project-detail-img{border-radius:8px;overflow:hidden;margin-bottom:2rem;box-shadow:0 5px 20px rgba(0,0,0,.1)}
.project-detail-img img{width:100%;max-height:500px;object-fit:cover}
.project-detail h2{color:var(--primary);margin-bottom:1rem;font-size:1.8rem}
.project-detail table{width:100%;border-collapse:collapse;margin-bottom:1.5rem}
.project-detail td{padding:.6rem 1rem;border-bottom:1px solid #eee}
.project-detail td:first-child{font-weight:600;color:var(--primary);width:120px}
.project-detail p{color:#555;line-height:1.8;margin-bottom:1rem}
.project-detail .back-link{display:inline-block;margin-bottom:2rem;color:var(--primary);font-weight:600}
.project-detail .back-link:hover{color:var(--accent)}

/* Safety */
.safety-content{display:grid;grid-template-columns:1fr 1fr;gap:4rem;align-items:center;max-width:1200px;margin:0 auto}
.safety-list li{padding:.8rem 0;border-bottom:1px solid #eee;display:flex;align-items:center;gap:.8rem}
.safety-list li::before{content:"\25CF";color:var(--accent);font-size:.6rem}

/* Contact */
.contact{background:var(--light)}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:4rem;max-width:1200px;margin:0 auto}
.contact-info h3{color:var(--primary);margin-bottom:1.5rem;font-size:1.3rem}
.contact-item{display:flex;gap:1rem;margin-bottom:1.5rem;align-items:flex-start}
.contact-item .label{font-weight:600;color:var(--primary);min-width:80px}
.contact-item .value{color:#555}
.contact-map{border-radius:8px;overflow:hidden;height:100%;min-height:350px}
.contact-map iframe{width:100%;height:100%;border:0;min-height:350px}

/* Footer */
footer{background:var(--dark);color:#fff;padding:3rem 5% 1.5rem;text-align:center}
footer .footer-links{display:flex;justify-content:center;gap:2rem;margin-bottom:1.5rem;flex-wrap:wrap}
footer .footer-links a{color:rgba(255,255,255,.7);font-size:.9rem;transition:color .3s}
footer .footer-links a:hover{color:var(--primary-light)}
footer .copyright{color:rgba(255,255,255,.5);font-size:.8rem}

/* Responsive */
@media(max-width:768px){
  .hamburger{display:flex}
  .nav-links{position:fixed;top:0;right:-100%;width:70%;height:100vh;background:var(--dark);flex-direction:column;padding:5rem 2rem;transition:right .3s}
  .nav-links.active{right:0}
  .hero-content h1{font-size:2rem}
  .hero-stats{flex-direction:column;gap:1.5rem}
  .about-grid,.services-grid,.projects-grid,.contact-grid,.safety-content{grid-template-columns:1fr}
  .qual-grid{grid-template-columns:1fr 1fr}
  section{padding:3rem 5%}
  .page-banner{height:200px}
  .page-banner h1{font-size:1.8rem}
}