/* ===== DESIGN TOKENS ===== */
:root {
  --navy: #141d48;
  --navy-light: #1c2757;
  --navy-dark: #0e1433;
  --turquoise: #97ebeb;
  --turquoise-dark: #6fd4d4;
  --cream: #f0f1ef;
  --white: #ffffff;
  --dark: #1a1a2e;
  --gray: #6b7280;
  --gray-light: #f3f4f6;
  --gray-border: #e5e7eb;
  --whatsapp: #25D366;
  --shadow-sm: 0 1px 3px rgba(0,0,0,.08);
  --shadow-md: 0 4px 16px rgba(0,0,0,.1);
  --shadow-lg: 0 8px 32px rgba(0,0,0,.15);
  --shadow-xl: 0 16px 48px rgba(0,0,0,.2);
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --transition: .3s cubic-bezier(.4,0,.2,1);
}

/* ===== RESET & BASE ===== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:'Inter',system-ui,-apple-system,sans-serif;color:var(--dark);background:var(--white);line-height:1.6;overflow-x:hidden;padding-top:74px}
h1,h2, .nav-links a{font-family:'Barlow Condensed',sans-serif;color:var(--navy);font-weight:700;line-height:1.2}
h3,h4,h5,h6{color:var(--navy);font-weight:700;line-height:1.3}
img{max-width:100%;height:auto;display:block}
a{text-decoration:none;color:inherit}
ul{list-style:none}
button{border:none;background:none;cursor:pointer;font-family:inherit}

/* ===== UTILITIES ===== */
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:80px 0}
.section-header{text-align:center;margin-bottom:56px}
.section-header h2{font-size:2.4rem;font-weight:700;color:var(--navy);margin-bottom:12px;position:relative;display:inline-block;text-transform:uppercase;letter-spacing:1px}
.section-header h2::after{content:'';position:absolute;bottom:-8px;left:50%;transform:translateX(-50%);width:60px;height:3px;background:var(--turquoise);border-radius:2px}
.section-header p{color:var(--gray);font-size:1.05rem;margin-top:20px;max-width:600px;margin-left:auto;margin-right:auto}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:14px 32px;border-radius:8px;font-weight:700;font-size:1rem;transition:all .3s cubic-bezier(.4,0,.2,1);cursor:pointer;position:relative;overflow:hidden;letter-spacing:1px;text-transform:uppercase}
.btn-primary{background:linear-gradient(135deg,var(--turquoise),#6fd4d4);color:var(--navy);border:none;box-shadow:0 4px 15px rgba(151,235,235,.2)}
.btn-primary::after{content:'';position:absolute;top:0;left:-100%;width:50%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.4),transparent);transform:skewX(-25deg);transition:none}
.btn-primary:hover{transform:translateY(-3px) scale(1.02);box-shadow:0 8px 25px rgba(151,235,235,.4)}
.btn-primary:hover::after{left:150%;transition:left .6s ease}
.btn-outline{background:rgba(255,255,255,.05);color:var(--cream);border:1px solid rgba(255,255,255,.2);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px)}
.btn-outline:hover{background:rgba(255,255,255,.1);border-color:var(--turquoise);color:var(--turquoise);transform:translateY(-3px) scale(1.02);box-shadow:0 8px 25px rgba(0,0,0,.2)}

/* ===== HEADER ===== */
.header{position:fixed;top:0;left:0;width:100%;z-index:1000;padding:12px 0;background:rgba(20,29,72,.97);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);box-shadow:0 4px 30px rgba(0,0,0,.25),0 1px 0 rgba(151,235,235,.08)}
.header .container{display:flex;align-items:center;justify-content:space-between}
.header-logo{display:flex;align-items:center}
.header-logo img{height:50px;width:auto;transition:var(--transition);filter:drop-shadow(0 2px 8px rgba(0,0,0,.25))}
.nav{display:flex;align-items:center;gap:36px}
.nav-links{display:flex;gap:6px;align-items:center}
.nav-links a{color:rgba(240,241,239,.9);font-size:1.05rem;font-weight:700;position:relative;padding:10px 16px;transition:var(--transition);letter-spacing:.8px;border-radius:6px;text-transform:uppercase}
.nav-links a::after{content:'';position:absolute;bottom:4px;left:50%;transform:translateX(-50%);width:0;height:2px;background:var(--turquoise);transition:var(--transition);border-radius:1px}
.nav-links a:hover::after,.nav-links a.active::after{width:calc(100% - 32px)}
.nav-links a:hover{color:var(--cream)}
.nav-links a.nav-cta{border:1.5px solid rgba(151,235,235,.5);border-radius:6px;padding:9px 22px;color:var(--turquoise);margin-left:8px}
.nav-links a.nav-cta::after{display:none}
.nav-links a.nav-cta:hover{background:var(--turquoise);color:var(--navy);border-color:var(--turquoise)}
.lang-toggle{display:flex;align-items:center;background:rgba(255,255,255,.08);border-radius:8px;overflow:hidden;border:1px solid rgba(255,255,255,.1);margin-left:4px}
.lang-toggle button{padding:7px 14px;font-size:.78rem;font-weight:700;color:rgba(240,241,239,.6);transition:var(--transition);letter-spacing:.8px}
.lang-toggle button:hover{color:var(--cream)}
.lang-toggle button.active{background:var(--turquoise);color:var(--navy)}
.hamburger{display:none;flex-direction:column;gap:5px;padding:8px;cursor:pointer;z-index:1001}
.hamburger span{display:block;width:22px;height:2px;background:var(--cream);transition:var(--transition);border-radius:2px}
.hamburger.active span:nth-child(1){transform:rotate(45deg) translate(5px,5px)}
.hamburger.active span:nth-child(2){opacity:0}
.hamburger.active span:nth-child(3){transform:rotate(-45deg) translate(5px,-5px)}

/* ===== HERO SLIDER ===== */
.hero{position:relative;height:70vh;min-height:500px;max-height:700px;overflow:hidden;background:var(--navy)}
.hero-slide{position:absolute;inset:0;opacity:0;visibility:hidden;pointer-events:none;transition:opacity 1s ease,visibility 1s ease;display:flex;align-items:center;justify-content:center}
.hero-slide.active{opacity:1;visibility:visible;pointer-events:auto}
.hero-slide-bg{position:absolute;inset:0;background-size:cover;background-position:center}
.hero-content-wrapper{position:absolute;inset:0;z-index:5;display:flex;align-items:center;pointer-events:none}
.hero-content{pointer-events:auto;max-width:650px;color:var(--white);margin-left:-80px}
.hero-tag{display:inline-block;padding:6px 16px;background:rgba(151,235,235,.15);color:var(--turquoise);border-radius:30px;font-weight:600;font-size:.9rem;margin-bottom:24px;border:1px solid rgba(151,235,235,.3);text-transform:uppercase;letter-spacing:1px}
.hero-content h1{font-size:4.5rem;color:var(--white);margin-bottom:24px;text-transform:uppercase;text-shadow:0 2px 10px rgba(0,0,0,.5)}
.hero-content h1 span{color:var(--turquoise)}
.hero-content p{font-size:1.15rem;color:rgba(240,241,239,.9);margin-bottom:36px;line-height:1.7;text-shadow:0 1px 5px rgba(0,0,0,.5)}
.hero-buttons{display:flex;gap:16px}
.hero-bottom{position:absolute;bottom:36px;left:50%;transform:translateX(-50%);z-index:10;display:flex;flex-direction:column;align-items:center;gap:20px}
.hero-controls{display:flex;align-items:center;gap:24px}
.hero-dots{display:flex;gap:10px}
.hero-dot{width:12px;height:12px;border-radius:50%;background:rgba(240,241,239,.25);cursor:pointer;transition:var(--transition);border:2px solid transparent}
.hero-dot.active{background:var(--turquoise);border-color:rgba(151,235,235,.4);transform:scale(1.2);box-shadow:0 0 12px rgba(151,235,235,.3)}
.hero-arrow{width:40px;height:40px;border-radius:50%;border:1px solid rgba(240,241,239,.25);color:var(--cream);display:flex;align-items:center;justify-content:center;cursor:pointer;transition:var(--transition);background:rgba(20,29,72,.4);backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px)}
.hero-arrow:hover{border-color:var(--turquoise);color:var(--turquoise);background:rgba(20,29,72,.7)}
.hero-arrow svg{width:18px;height:18px}

/* ===== FEATURES ===== */
.features{background:var(--white);position:relative}
.features::before{content:'';position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--navy),var(--turquoise),var(--navy))}
.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:32px}
.feature-card{text-align:center;padding:40px 28px;border-radius:var(--radius-md);background:var(--white);border:1px solid var(--gray-border);transition:var(--transition);position:relative;overflow:hidden}
.feature-card::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:var(--turquoise);transform:scaleX(0);transition:var(--transition)}
.feature-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:transparent}
.feature-card:hover::before{transform:scaleX(1)}
.feature-icon{width:64px;height:64px;border-radius:var(--radius-md);background:linear-gradient(135deg,rgba(20,29,72,.06),rgba(151,235,235,.12));display:flex;align-items:center;justify-content:center;margin:0 auto 20px;transition:var(--transition)}
.feature-icon svg{width:34px;height:34px;stroke-width:1.5;color:var(--navy);transition:var(--transition)}
.feature-card:hover .feature-icon{background:var(--navy)}
.feature-card:hover .feature-icon svg{color:var(--turquoise)}
.feature-card h3{font-size:1.1rem;font-weight:700;color:var(--navy);margin-bottom:10px}
.feature-card p{color:var(--gray);font-size:.92rem;line-height:1.65}

/* ===== PRODUCTS ===== */
.products{background:var(--gray-light)}
.product-filters{display:flex;justify-content:center;gap:10px;margin-bottom:40px;flex-wrap:wrap}
.product-filter{padding:8px 20px;border-radius:20px;font-size:.85rem;font-weight:600;color:var(--gray);background:var(--white);border:1px solid var(--gray-border);transition:var(--transition);cursor:pointer}
.product-filter.active,.product-filter:hover{background:var(--navy);color:var(--cream);border-color:var(--navy)}
.products-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:24px}
.product-card{background:var(--white);border-radius:var(--radius-md);overflow:hidden;border:1px solid var(--gray-border);transition:var(--transition);cursor:pointer}
.product-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:transparent}
.product-card-img{position:relative;padding-top:100%;background:var(--white);overflow:hidden}
.product-card-img img{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;padding:16px;transition:transform .4s ease}
.product-card:hover .product-card-img img{transform:scale(1.08)}
.product-card-badge{position:absolute;top:12px;left:12px;padding:4px 10px;border-radius:4px;font-size:.7rem;font-weight:700;letter-spacing:.5px;text-transform:uppercase}
.badge-stop{background:rgba(20,29,72,.9);color:var(--cream)}
.badge-krom{background:rgba(151,235,235,.9);color:var(--navy)}
.badge-pprc{background:rgba(20,29,72,.08);color:var(--navy);border:1px solid var(--navy)}
.product-card-info{padding:16px 20px}
.product-card-info h3{font-size:.95rem;font-weight:600;color:var(--dark);margin-bottom:4px}
.product-card-info span{font-size:.8rem;color:var(--gray)}
.product-card-detail{display:flex;align-items:center;gap:4px;margin-top:10px;font-size:.8rem;font-weight:600;color:var(--turquoise-dark);transition:var(--transition)}
.product-card:hover .product-card-detail{color:var(--navy)}
.product-card-detail svg{width:14px;height:14px}

/* ===== PRODUCT MODAL ===== */
.modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,.6);backdrop-filter:blur(4px);z-index:2000;display:flex;align-items:center;justify-content:center;padding:24px;opacity:0;visibility:hidden;transition:var(--transition)}
.modal-overlay.active{opacity:1;visibility:visible}
.modal{background:var(--white);border-radius:var(--radius-lg);max-width:720px;width:100%;max-height:90vh;overflow-y:auto;transform:translateY(24px) scale(.97);transition:var(--transition);box-shadow:var(--shadow-xl)}
.modal-overlay.active .modal{transform:translateY(0) scale(1)}
.modal-header{display:flex;align-items:center;justify-content:space-between;padding:20px 28px;border-bottom:1px solid var(--gray-border)}
.modal-header h3{font-size:1.15rem;font-weight:700;color:var(--navy)}
.modal-close{width:36px;height:36px;border-radius:50%;display:flex;align-items:center;justify-content:center;color:var(--gray);transition:var(--transition);background:var(--gray-light)}
.modal-close:hover{background:var(--navy);color:var(--cream)}
.modal-close svg{width:18px;height:18px}
.modal-body{padding:28px;display:grid;grid-template-columns:1fr 1fr;gap:28px}
.modal-img{border-radius:var(--radius-md);overflow:hidden;background:var(--gray-light);display:flex;align-items:center;justify-content:center;padding:20px}
.modal-img img{max-height:320px;object-fit:contain}
.modal-info h4{font-size:.85rem;font-weight:700;color:var(--turquoise-dark);text-transform:uppercase;letter-spacing:1px;margin-bottom:12px}
.modal-info .modal-category{display:inline-block;padding:4px 12px;border-radius:4px;font-size:.75rem;font-weight:600;background:rgba(20,29,72,.06);color:var(--navy);margin-bottom:16px}
.modal-specs{width:100%;border-collapse:collapse;margin-top:12px}
.modal-specs th,.modal-specs td{padding:10px 14px;text-align:left;font-size:.85rem;border-bottom:1px solid var(--gray-border)}
.modal-specs th{background:var(--gray-light);color:var(--navy);font-weight:600;width:40%}
.modal-specs td{color:var(--dark)}

/* ===== ABOUT ===== */
.about{background:var(--white)}
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:start}
.about-content h3{font-size:1.6rem;font-weight:700;color:var(--navy);margin-bottom:20px}
.about-content>p{color:var(--gray);line-height:1.75;margin-bottom:24px;font-size:.95rem}
.about-block{margin-bottom:28px;padding-left:20px;border-left:3px solid var(--turquoise)}
.about-block h4{font-size:1rem;font-weight:700;color:var(--navy);margin-bottom:8px}
.about-block p{color:var(--gray);font-size:.9rem;line-height:1.7}
.about-image{position:relative;border-radius:var(--radius-lg);overflow:hidden}
.about-image img{width:100%;height:100%;object-fit:cover;border-radius:var(--radius-lg)}
.about-image::after{content:'';position:absolute;inset:0;border-radius:var(--radius-lg);border:2px solid var(--turquoise);opacity:.3}
.about-badge{position:absolute;bottom:24px;right:24px;background:var(--navy);color:var(--cream);padding:16px 24px;border-radius:var(--radius-md);text-align:center;box-shadow:var(--shadow-lg)}
.about-badge .badge-num{font-size:2rem;font-weight:800;color:var(--turquoise);display:block;line-height:1}
.about-badge .badge-text{font-size:.75rem;font-weight:600;letter-spacing:.5px;text-transform:uppercase;margin-top:4px}

/* ===== GALLERY ===== */
.gallery{background:var(--gray-light)}
.gallery-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.gallery-item{position:relative;border-radius:var(--radius-md);overflow:hidden;cursor:pointer;aspect-ratio:1;background:var(--dark)}
.gallery-item:nth-child(1){grid-column:span 2;grid-row:span 2;aspect-ratio:auto}
.gallery-item img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.gallery-item:hover img{transform:scale(1.08)}
.gallery-item::after{content:'';position:absolute;inset:0;background:linear-gradient(to top,rgba(20,29,72,.5) 0%,transparent 50%);opacity:0;transition:var(--transition)}
.gallery-item:hover::after{opacity:1}
.gallery-item .gallery-zoom{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%) scale(0);width:48px;height:48px;border-radius:50%;background:rgba(255,255,255,.9);display:flex;align-items:center;justify-content:center;transition:var(--transition);z-index:2}
.gallery-item .gallery-zoom svg{width:20px;height:20px;color:var(--navy)}
.gallery-item:hover .gallery-zoom{transform:translate(-50%,-50%) scale(1)}

/* Lightbox */
.lightbox{position:fixed;inset:0;background:rgba(0,0,0,.92);z-index:3000;display:flex;align-items:center;justify-content:center;opacity:0;visibility:hidden;transition:var(--transition)}
.lightbox.active{opacity:1;visibility:visible}
.lightbox img{max-width:90vw;max-height:85vh;object-fit:contain;border-radius:var(--radius-sm)}
.lightbox-close{position:absolute;top:20px;right:20px;width:44px;height:44px;border-radius:50%;background:rgba(255,255,255,.1);color:var(--cream);display:flex;align-items:center;justify-content:center;transition:var(--transition);cursor:pointer}
.lightbox-close:hover{background:rgba(255,255,255,.25)}
.lightbox-close svg{width:22px;height:22px}
.lightbox-nav{position:absolute;top:50%;transform:translateY(-50%);width:48px;height:48px;border-radius:50%;background:rgba(255,255,255,.1);color:var(--cream);display:flex;align-items:center;justify-content:center;transition:var(--transition);cursor:pointer;border:none}
.lightbox-nav:hover{background:rgba(255,255,255,.25)}
.lightbox-nav svg{width:22px;height:22px}
.lightbox-prev{left:20px}
.lightbox-next{right:20px}

/* ===== CONTACT ===== */
.contact{background:var(--white)}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px}
.contact-info{display:flex;flex-direction:column;gap:24px}
.contact-item{display:flex;gap:16px;align-items:flex-start}
.contact-item-icon{width:48px;height:48px;min-width:48px;border-radius:var(--radius-md);background:linear-gradient(135deg,rgba(20,29,72,.06),rgba(151,235,235,.12));display:flex;align-items:center;justify-content:center}
.contact-item-icon svg{width:20px;height:20px;color:var(--navy)}
.contact-item h4{font-size:.9rem;font-weight:700;color:var(--navy);margin-bottom:4px}
.contact-item p,.contact-item a{color:var(--gray);font-size:.88rem;line-height:1.6;transition:var(--transition)}
.contact-item a:hover{color:var(--turquoise-dark)}
.contact-map{border-radius:var(--radius-md);overflow:hidden;min-height:360px;border:1px solid var(--gray-border)}
.contact-map iframe{width:100%;height:100%;min-height:360px;border:none}

/* ===== FOOTER ===== */
.footer{background:var(--navy);color:var(--cream);padding:56px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:48px;padding-bottom:40px;border-bottom:1px solid rgba(240,241,239,.1)}
.footer-brand img{max-width:320px;width:100%;height:auto;margin-bottom:20px;display:block}
.footer-brand p{color:rgba(240,241,239,.6);font-size:.88rem;line-height:1.7;max-width:320px}
.footer h4{font-size:.9rem;font-weight:700;text-transform:uppercase;letter-spacing:1px;margin-bottom:20px;color:var(--turquoise)}
.footer-links li{margin-bottom:10px}
.footer-links a{color:rgba(240,241,239,.6);font-size:.88rem;transition:var(--transition);display:flex;align-items:center;gap:6px}
.footer-links a:hover{color:var(--turquoise);transform:translateX(4px)}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;margin-bottom:12px;color:rgba(240,241,239,.6);font-size:.88rem}
.footer-contact svg{width:16px;height:16px;min-width:16px;color:var(--turquoise);margin-top:3px}
.footer-bottom{padding:20px 0;text-align:center}
.footer-bottom p{color:rgba(240,241,239,.4);font-size:.8rem}

/* ===== WHATSAPP BUTTON ===== */
.whatsapp-btn{position:fixed;bottom:28px;right:28px;z-index:999;width:60px;height:60px;border-radius:50%;background:var(--whatsapp);display:flex;align-items:center;justify-content:center;box-shadow:0 4px 20px rgba(37,211,102,.4);transition:var(--transition);animation:wp-pulse 2s infinite}
.whatsapp-btn:hover{transform:scale(1.1);box-shadow:0 6px 28px rgba(37,211,102,.5)}
.whatsapp-btn svg{width:30px;height:30px;fill:white}
@keyframes wp-pulse{0%,100%{box-shadow:0 4px 20px rgba(37,211,102,.4)}50%{box-shadow:0 4px 30px rgba(37,211,102,.6),0 0 0 12px rgba(37,211,102,.08)}}

/* ===== SCROLL TO TOP ===== */
.scroll-top{position:fixed;bottom:28px;right:100px;z-index:999;width:44px;height:44px;border-radius:50%;background:var(--navy);color:var(--cream);display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-md);opacity:0;visibility:hidden;transform:translateY(10px);transition:var(--transition)}
.scroll-top.visible{opacity:1;visibility:visible;transform:translateY(0)}
.scroll-top:hover{background:var(--turquoise);color:var(--navy)}
.scroll-top svg{width:20px;height:20px}

/* ===== RESPONSIVE ===== */
@media(min-width:1440px){
  .header-logo{margin-left:-80px}
}
@media(max-width:1366px){
  .hero-content{margin-left:0}
}
@media(max-width:1024px){
  .features-grid{grid-template-columns:repeat(3,1fr);gap:20px}
  .about-grid{grid-template-columns:1fr;gap:40px}
  .about-image{max-height:400px}
  .gallery-grid{grid-template-columns:repeat(3,1fr)}
  .gallery-item:nth-child(1){grid-column:span 2;grid-row:span 1;aspect-ratio:2/1}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:768px){
  .section{padding:60px 0}
  .section-header h2{font-size:1.6rem}
  .nav-links{position:fixed;top:0;right:-100%;width:280px;height:100vh;background:var(--navy);flex-direction:column;padding:80px 32px 40px;gap:20px;transition:var(--transition);box-shadow:var(--shadow-xl)}
  .nav-links.open{right:0}
  .nav-links a{font-size:1rem}
  .hamburger{display:flex}
  .hero{min-height:500px}
  .hero-content h1{font-size:2.2rem}
  .hero-content p{font-size:.95rem}
  .hero-content{padding-left:0;margin-left:0}
  .features-grid{grid-template-columns:1fr;max-width:420px;margin:0 auto}
  .products-grid{grid-template-columns:repeat(2,1fr);gap:16px}
  .modal-body{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr}
  .gallery-grid{grid-template-columns:repeat(2,1fr)}
  .gallery-item:nth-child(1){grid-column:span 2;aspect-ratio:2/1}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .scroll-top{right:28px;bottom:96px}
}
@media(max-width:480px){
  .container{padding:0 16px}
  .hero-content h1{font-size:1.8rem}
  .products-grid{grid-template-columns:1fr}
  .product-filters{gap:6px}
  .product-filter{padding:6px 14px;font-size:.8rem}
  .hero-buttons{flex-direction:column}
  .hero-buttons .btn{width:100%;justify-content:center}
}