/* ===== RESET & BASE ===== */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
:root{
  --navy:#1a2332;--navy-light:#243044;--gold:#c9a84c;--gold-light:#e0c97a;
  --white:#ffffff;--gray-50:#f8f9fa;--gray-100:#f1f3f5;--gray-200:#e9ecef;
  --gray-600:#868e96;--gray-800:#343a40;
  --radius:12px;--shadow:0 4px 24px rgba(0,0,0,.08);--shadow-lg:0 8px 40px rgba(0,0,0,.12);
  --transition:all .3s ease;
}
html{scroll-behavior:smooth;scroll-padding-top:80px}
body{font-family:'Inter',system-ui,sans-serif;color:var(--gray-800);line-height:1.6;overflow-x:hidden}
img{max-width:100%;height:auto;display:block}
a{text-decoration:none;color:inherit}
.container{max-width:1200px;margin:0 auto;padding:0 20px}

/* ===== NAVBAR ===== */
.navbar{position:fixed;top:0;left:0;right:0;z-index:1000;background:var(--navy);padding:0 0;transition:var(--transition)}
.navbar.scrolled{box-shadow:0 2px 20px rgba(0,0,0,.3)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:70px}
.logo{display:flex;align-items:center;gap:10px;color:var(--white)}
.logo-icon{font-size:28px}
.logo-name{font-weight:700;font-size:18px;letter-spacing:1px;color:var(--gold)}
.logo-sub{font-size:10px;color:var(--gray-600);letter-spacing:2px;display:block}
.nav-menu{display:flex;list-style:none;gap:4px}
.nav-link{color:rgba(255,255,255,.75);padding:8px 14px;border-radius:8px;font-size:14px;font-weight:500;transition:var(--transition)}
.nav-link:hover,.nav-link.active{color:var(--white);background:rgba(255,255,255,.1)}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:8px}
.nav-toggle span{width:24px;height:2px;background:var(--white);transition:var(--transition)}
.nav-cta{background:var(--gold);color:var(--navy);padding:8px 20px;border-radius:8px;font-weight:600;font-size:14px;transition:var(--transition)}
.nav-cta:hover{background:var(--gold-light);transform:translateY(-1px)}

/* ===== HERO ===== */
.hero{position:relative;min-height:100vh;display:flex;align-items:center;justify-content:center;background:var(--navy);overflow:hidden;padding-top:70px}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.25}
.hero-content{position:relative;text-align:center;color:var(--white);padding:60px 20px}
.hero h1{font-size:clamp(2rem,5vw,3.5rem);font-weight:800;margin-bottom:16px;line-height:1.2}
.hero h1 .gold{color:var(--gold)}
.hero-sub{font-size:clamp(1rem,2vw,1.2rem);color:rgba(255,255,255,.7);max-width:600px;margin:0 auto 32px}
.hero-stats{display:flex;justify-content:center;gap:40px;margin-top:40px;flex-wrap:wrap}
.stat{text-align:center}
.stat-number{display:block;font-size:2rem;font-weight:800;color:var(--gold)}
.stat-label{font-size:.85rem;color:rgba(255,255,255,.6)}
.hero-actions{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
.btn{display:inline-block;padding:14px 32px;border-radius:10px;font-weight:600;font-size:15px;transition:var(--transition);cursor:pointer;border:none}
.btn-primary{background:var(--gold);color:var(--navy)}
.btn-primary:hover{background:var(--gold-light);transform:translateY(-2px);box-shadow:0 8px 24px rgba(201,168,76,.3)}
.btn-outline{border:2px solid rgba(255,255,255,.3);color:var(--white);background:transparent}
.btn-outline:hover{border-color:var(--white);background:rgba(255,255,255,.1)}

/* ===== SECTIONS ===== */
.section{padding:80px 0}
.section-alt{background:var(--gray-50)}
.section-dark{background:var(--navy);color:var(--white)}
.section-title{text-align:center;margin-bottom:48px}
.section-title h2{font-size:clamp(1.5rem,3vw,2.2rem);font-weight:700;color:var(--navy);margin-bottom:8px}
.section-dark .section-title h2{color:var(--white)}
.section-title .gold-line{width:60px;height:3px;background:var(--gold);margin:12px auto 0;border-radius:2px}
.section-title p{color:var(--gray-600);margin-top:12px;max-width:600px;margin-left:auto;margin-right:auto}
.section-dark .section-title p{color:rgba(255,255,255,.6)}

/* ===== COMPANY PROFILE ===== */
.profile-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.profile-img{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-lg)}
.profile-img img{width:100%;transition:transform .5s ease}
.profile-img:hover img{transform:scale(1.02)}
.profile-text h3{font-size:1.5rem;color:var(--navy);margin-bottom:16px}
.profile-text p{color:var(--gray-600);margin-bottom:12px;line-height:1.8}

/* ===== PRODUCT CATALOG ===== */
.catalog-nav{display:flex;flex-wrap:wrap;justify-content:center;gap:8px;margin-bottom:40px}
.catalog-btn{padding:8px 20px;border-radius:20px;border:2px solid var(--gray-200);background:var(--white);color:var(--gray-800);font-size:13px;font-weight:500;cursor:pointer;transition:var(--transition)}
.catalog-btn:hover,.catalog-btn.active{border-color:var(--gold);background:var(--gold);color:var(--navy)}

/* KEY FIX: 2-column grid, images shown at natural ratio, no crop */
.product-grid{
  display:grid;
  grid-template-columns:repeat(2, 1fr);
  gap:20px;
}
.product-card{
  background:var(--white);
  border-radius:var(--radius);
  overflow:hidden;
  box-shadow:var(--shadow);
  transition:var(--transition);
  cursor:pointer;
}
.product-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-lg);
}
/* Image: natural display, no aspect-ratio, no crop, no object-fit */
.product-card img{
  width:100%;
  height:auto;
  display:block;
  transition:transform .4s ease;
}
.product-card:hover img{
  transform:scale(1.03);
}
.product-card-overlay{display:none}
.product-card-label{
  padding:12px 16px;
  font-size:14px;
  font-weight:600;
  color:var(--navy);
  background:var(--white);
  border-top:1px solid var(--gray-100);
}
.product-card-desc{
  padding:0 16px 16px;
  font-size:13px;
  line-height:1.7;
  color:var(--gray-600);
  background:var(--white);
}
.category-section{margin-bottom:60px}
.category-section h3{
  font-size:1.3rem;
  font-weight:700;
  color:var(--navy);
  margin-bottom:20px;
  padding-left:12px;
  border-left:4px solid var(--gold);
}

/* ===== PROJECT ===== */
.project-img{max-width:800px;margin:0 auto;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-lg)}
.project-img img{width:100%;transition:transform .5s ease}
.project-img:hover img{transform:scale(1.02)}

/* ===== CONTACT ===== */
.contact-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:32px}
.contact-card{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.1);border-radius:var(--radius);padding:32px;text-align:center;transition:var(--transition)}
.contact-card:hover{background:rgba(255,255,255,.12);transform:translateY(-4px)}
.contact-icon{font-size:2.5rem;margin-bottom:16px}
.contact-card h4{color:var(--gold);margin-bottom:8px;font-size:1.1rem}
.contact-card p{color:rgba(255,255,255,.7);font-size:.95rem;line-height:1.6}
.contact-card a{color:var(--gold-light)}
.contact-card a:hover{text-decoration:underline}

/* ===== FOOTER ===== */
.footer{background:var(--navy);border-top:1px solid rgba(255,255,255,.1);padding:24px 0;text-align:center;color:rgba(255,255,255,.4);font-size:.85rem}

/* ===== LIGHTBOX ===== */
.lightbox{display:none;position:fixed;inset:0;z-index:9999;background:rgba(0,0,0,.92);align-items:center;justify-content:center;padding:20px}
.lightbox.active{display:flex}
.lightbox img{max-width:90vw;max-height:90vh;object-fit:contain;border-radius:4px}
.lightbox-close{position:absolute;top:20px;right:24px;color:var(--white);font-size:2rem;cursor:pointer;background:rgba(255,255,255,.1);width:48px;height:48px;border-radius:50%;display:flex;align-items:center;justify-content:center;border:none;transition:var(--transition)}
.lightbox-close:hover{background:rgba(255,255,255,.2)}
.lightbox-nav{position:absolute;top:50%;transform:translateY(-50%);color:var(--white);font-size:2.5rem;cursor:pointer;background:rgba(255,255,255,.1);width:56px;height:56px;border-radius:50%;display:flex;align-items:center;justify-content:center;border:none;transition:var(--transition)}
.lightbox-nav:hover{background:rgba(255,255,255,.2)}
.lightbox-prev{left:20px}
.lightbox-next{right:20px}
.lightbox-counter{position:absolute;bottom:20px;left:50%;transform:translateX(-50%);color:rgba(255,255,255,.6);font-size:.9rem}

/* ===== SCROLL TOP ===== */
.scroll-top{position:fixed;bottom:24px;right:24px;width:48px;height:48px;background:var(--gold);color:var(--navy);border:none;border-radius:50%;font-size:1.2rem;cursor:pointer;display:none;align-items:center;justify-content:center;box-shadow:var(--shadow);z-index:900;transition:var(--transition)}
.scroll-top.visible{display:flex}
.scroll-top:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg)}


/* ===== KNOWLEDGE / ARTICLES ===== */
.articles-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.article-card{background:var(--white);border-radius:var(--radius);padding:32px;box-shadow:var(--shadow);transition:var(--transition);border-left:4px solid var(--gold)}
.article-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg)}
.article-icon{font-size:2rem;margin-bottom:12px}
.article-card h3{font-size:1.1rem;font-weight:700;color:var(--navy);margin-bottom:12px;line-height:1.5}
.article-card h4{font-size:1rem;font-weight:600;color:var(--navy);margin:16px 0 8px;padding-left:8px;border-left:3px solid var(--gold-light)}
.article-card p{color:var(--gray-600);font-size:.9rem;line-height:1.8;margin-bottom:10px}
.article-card ul,.article-card ol{padding-left:20px;margin-bottom:12px}
.article-card li{color:var(--gray-600);font-size:.9rem;line-height:1.8;margin-bottom:6px}
.article-card li strong{color:var(--gray-800)}

/* ===== RESPONSIVE ===== */
@media(max-width:768px){
  .nav-menu{position:fixed;top:70px;left:0;right:0;background:var(--navy);flex-direction:column;padding:20px;gap:4px;transform:translateY(-120%);transition:var(--transition);box-shadow:0 8px 32px rgba(0,0,0,.3)}
  .nav-menu.open{transform:translateY(0)}
  .nav-toggle{display:flex}
  .nav-cta{display:none}
  .profile-grid{grid-template-columns:1fr}
  .product-grid{grid-template-columns:1fr;gap:16px}
  .hero-stats{gap:20px}
  .stat-number{font-size:1.5rem}
  .contact-grid{grid-template-columns:1fr}
  .articles-grid{grid-template-columns:1fr}
  .hero{min-height:80vh}
  .section{padding:50px 0}
  .lightbox-nav{width:40px;height:40px;font-size:1.5rem}
  .lightbox-prev{left:8px}
  .lightbox-next{right:8px}
}