:root {
  --primary:#2a7a9c;
  --primary-dark:#1c5d7a;
  --primary-light:#e8f4f8;
  --accent:#f0b740;
  --white:#fff;
  --gray-100:#f8f9fa;
  --gray-900:#333;
  --shadow-sm:0 5px 20px rgba(0,0,0,0.05);
  --shadow-md:0 8px 30px rgba(0,0,0,0.1);
  --border-radius:12px;
}

* {margin:0;padding:0;box-sizing:border-box;}
body {
  font-family:'Inter',sans-serif;
  color:var(--gray-900);
  line-height:1.6;
  background:var(--white);
}

/* Headings */
h1,h2,h3,h4 {
  font-family:'Poppins',sans-serif;
  font-weight:600;
  margin-bottom:10px;
}

/* Container */
.container {
  width:90%;
  max-width:1280px;
  margin:0 auto;
  padding:0 20px;
}

/* Navbar */
.navbar {
  position:sticky;
  top:0;
  background:rgba(255,255,255,0.95);
  backdrop-filter:blur(10px);
  box-shadow:var(--shadow-sm);
  z-index:1000;
  padding:15px 0;
}

.navbar .container {
  display:flex;
  justify-content:space-between;
  align-items:center;
}

.logo {
  display:flex;
  align-items:center;
  gap:10px;
  text-decoration:none;
  color:var(--primary);
  font-weight:700;
  font-size:1.5rem;
}

.logo i { font-size:2rem; }

.nav-links {
  display:flex;
  gap:30px;
  list-style:none;
}

.nav-links a {
  text-decoration:none;
  color:var(--gray-900);
  font-weight:500;
  position:relative;
}

.nav-links a.active {
  color:var(--primary);
}

.nav-links a.active::after {
  content:'';
  position:absolute;
  bottom:-5px;
  left:0;
  width:100%;
  height:2px;
  background:var(--primary);
}

.mobile-menu-btn {
  display:none;
  background:none;
  border:none;
  font-size:1.8rem;
  color:var(--primary);
  cursor:pointer;
}

@media(max-width:768px){
  .mobile-menu-btn{display:block;}
  .nav-links{
    position:fixed;
    top:80px;
    left:-100%;
    width:100%;
    height:calc(100vh-80px);
    background:white;
    flex-direction:column;
    align-items:center;
    justify-content:center;
    gap:40px;
    transition:left 0.3s;
    box-shadow:var(--shadow-md);
  }
  .nav-links.active{left:0;}
}

/* Page Header */
.page-header {
  background:linear-gradient(135deg,var(--primary),#3a9ec4);
  color:white;
  padding:60px 0;
  text-align:center;
}

.page-header h1 { font-size:2.8rem; margin-bottom:10px; }
.page-header p { font-size:1.1rem; }

/* Product / Service Detail */
.product-detail, .service-page {
  padding:60px 0;
}

.product-gallery {
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(300px,1fr));
  gap:30px;
  margin-bottom:50px;
}

.main-image {
  border-radius:var(--border-radius);
  height:350px;
  display:flex;
  align-items:center;
  justify-content:center;
  background:var(--primary-light);
}

.main-image img {
  width:100%;
  height:100%;
  object-fit:cover;
  border-radius:var(--border-radius);
  box-shadow:var(--shadow-md);
}

.thumbnails {
  display:flex;
  gap:15px;
}

.thumb {
  width:80px;
  height:80px;
  border-radius:8px;
  display:flex;
  align-items:center;
  justify-content:center;
  background:var(--primary-light);
  cursor:pointer;
}

.thumb img { width:100%; height:100%; object-fit:cover; border-radius:8px; }

.product-info {
  max-width:800px;
  margin:0 auto;
}

.info-section {
  margin:40px 0;
}

.info-section h2 { color:var(--primary-dark); margin-bottom:20px; }

.info-grid {
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(250px,1fr));
  gap:30px;
}

.info-card {
  background:var(--gray-100);
  padding:25px;
  border-radius:var(--border-radius);
}

.feature-list {
  list-style:none;
}

.feature-list li {
  margin:10px 0;
  display:flex;
  align-items:center;
  gap:10px;
}

.feature-list i { color:var(--primary); }

.brand-list {
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:10px;
}

.brand-tag {
  background:var(--primary-light);
  color:var(--primary-dark);
  padding:5px 15px;
  border-radius:50px;
  font-weight:500;
}

/* Buttons */
.btn {
  display:inline-block;
  background:var(--accent);
  color:var(--gray-900);
  padding:12px 32px;
  border-radius:50px;
  text-decoration:none;
  font-weight:600;
  transition:all 0.3s;
  border:none;
  cursor:pointer;
  margin-top:20px;
}

.btn:hover {
  transform:translateY(-3px);
  box-shadow:var(--shadow-md);
  background:#e5a62e;
}

/* Footer */
footer {
  background:var(--primary-dark);
  color:white;
  padding:60px 0 20px;
}

.footer-grid {
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(200px,1fr));
  gap:40px;
  margin-bottom:40px;
}

.footer-col h3 {
  font-size:1.2rem;
  margin-bottom:20px;
  position:relative;
}

.footer-col h3::after {
  content:'';
  width:40px;
  height:2px;
  background:var(--accent);
  position:absolute;
  bottom:0;
  left:0;
}

.footer-col ul { list-style:none; }

.footer-col li { margin-bottom:10px; }

.footer-col a {
  color:rgba(255,255,255,0.8);
  text-decoration:none;
  transition:all 0.3s;
}

.footer-col a:hover {
  color:var(--accent);
  padding-left:5px;
}

.copyright {
  text-align:center;
  padding-top:20px;
  border-top:1px solid rgba(255,255,255,0.1);
  font-size:0.9rem;
  opacity:0.7;
}