:root{
  --bg:#0a0e17;
  --bg-alt:#0f1420;
  --surface:#131a29;
  --surface-2:#1a2436;
  --primary:#00d4a3;
  --primary-2:#3b82f6;
  --accent:#ff6b6b;
  --text:#e8ecf4;
  --text-dim:#8a95ab;
  --border:rgba(255,255,255,0.08);
  --radius:16px;
  --shadow:0 20px 60px -15px rgba(0,0,0,0.5);
  --grad:linear-gradient(135deg,var(--primary) 0%,var(--primary-2) 100%);
  font-size:16px;
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  background:var(--bg);
  color:var(--text);
  overflow-x:hidden;
  line-height:1.6;
}
body::before{
  content:"";
  position:fixed;top:0;left:0;width:100%;height:100%;
  background:
    radial-gradient(circle at 20% 20%, rgba(0,212,163,0.08), transparent 40%),
    radial-gradient(circle at 80% 80%, rgba(59,130,246,0.08), transparent 40%);
  z-index:-1;
  pointer-events:none;
}
a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;}
.container{max-width:1200px;margin:0 auto;padding:0 24px;}

/* Preloader */
#preloader{
  position:fixed;inset:0;background:var(--bg);z-index:9999;
  display:flex;align-items:center;justify-content:center;
  transition:opacity .5s ease, visibility .5s ease;
}
#preloader.hide{opacity:0;visibility:hidden;}
.loader-ring{
  width:56px;height:56px;border-radius:50%;
  border:3px solid var(--border);
  border-top-color:var(--primary);
  animation:spin 0.9s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg);}}

/* Navbar */
.navbar{
  position:fixed;top:0;left:0;width:100%;z-index:1000;
  padding:18px 0;
  transition:all .35s ease;
  background:transparent;
}
.navbar.scrolled{
  background:rgba(10,14,23,0.85);
  backdrop-filter:blur(16px) saturate(160%);
  border-bottom:1px solid var(--border);
  padding:12px 0;
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;}
.brand{display:flex;align-items:center;gap:12px;font-weight:800;font-size:1.3rem;letter-spacing:-0.5px;}
.brand img{width:42px;height:42px;border-radius:10px;object-fit:cover;}
.brand span.accent{color:var(--primary);}
.nav-links{display:flex;gap:36px;align-items:center;}
.nav-links a{
  font-weight:500;font-size:.95rem;color:var(--text-dim);
  position:relative;transition:color .25s;
}
.nav-links a::after{
  content:"";position:absolute;left:0;bottom:-8px;width:0;height:2px;
  background:var(--grad);transition:width .3s;
}
.nav-links a:hover, .nav-links a.active{color:var(--text);}
.nav-links a:hover::after,.nav-links a.active::after{width:100%;}
.nav-cta{
  background:var(--grad);color:#04120e;padding:10px 22px;border-radius:999px;
  font-weight:700;font-size:.9rem;box-shadow:0 8px 24px -8px rgba(0,212,163,0.5);
  transition:transform .25s;
}
.nav-cta:hover{transform:translateY(-2px);}
.burger{display:none;flex-direction:column;gap:5px;cursor:pointer;}
.burger span{width:26px;height:2px;background:var(--text);border-radius:2px;transition:.3s;}

/* Hero */
.hero{
  min-height:100vh;display:flex;align-items:center;position:relative;
  padding:140px 0 80px;overflow:hidden;
}
.hero-grid{display:grid;grid-template-columns:1.1fr 0.9fr;gap:60px;align-items:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--surface);border:1px solid var(--border);
  padding:8px 16px;border-radius:999px;font-size:.8rem;color:var(--primary);
  font-weight:600;margin-bottom:24px;
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--primary);animation:pulse 1.6s infinite;}
@keyframes pulse{0%,100%{opacity:1;}50%{opacity:.3;}}
h1{font-size:clamp(2.4rem,5vw,4rem);font-weight:800;line-height:1.08;letter-spacing:-1.5px;margin-bottom:20px;}
h1 .grad-text{
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero p.lead{color:var(--text-dim);font-size:1.15rem;max-width:520px;margin-bottom:36px;}
.btn-row{display:flex;gap:16px;flex-wrap:wrap;}
.btn{
  padding:15px 30px;border-radius:12px;font-weight:700;font-size:.95rem;
  display:inline-flex;align-items:center;gap:8px;cursor:pointer;border:none;
  transition:transform .25s,box-shadow .25s;
}
.btn-primary{background:var(--grad);color:#04120e;box-shadow:0 12px 30px -10px rgba(0,212,163,.55);}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 18px 36px -10px rgba(0,212,163,.65);}
.btn-outline{background:transparent;border:1px solid var(--border);color:var(--text);}
.btn-outline:hover{border-color:var(--primary);color:var(--primary);}

.hero-visual{position:relative;height:460px;}
.float-card{
  position:absolute;background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius);padding:18px 22px;box-shadow:var(--shadow);
  animation:floaty 5s ease-in-out infinite;backdrop-filter:blur(10px);
}
@keyframes floaty{0%,100%{transform:translateY(0);}50%{transform:translateY(-14px);}}
.hero-img-wrap{
  position:absolute;inset:0;border-radius:24px;overflow:hidden;border:1px solid var(--border);
}
.hero-img-wrap img{width:100%;height:100%;object-fit:cover;}

/* Stats */
.stats{padding:60px 0;border-top:1px solid var(--border);border-bottom:1px solid var(--border);}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:30px;text-align:center;}
.stat h3{font-size:2.6rem;font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;}
.stat p{color:var(--text-dim);font-size:.9rem;margin-top:4px;}

/* Sections */
section{padding:100px 0;}
.section-head{text-align:center;max-width:640px;margin:0 auto 60px;}
.tag{color:var(--primary);font-weight:700;font-size:.8rem;letter-spacing:1.5px;text-transform:uppercase;}
.section-head h2{font-size:clamp(1.8rem,3.5vw,2.6rem);font-weight:800;letter-spacing:-1px;margin:14px 0;}
.section-head p{color:var(--text-dim);}

/* Cards grid generic */
.grid{display:grid;gap:24px;}
.grid-3{grid-template-columns:repeat(3,1fr);}
.grid-4{grid-template-columns:repeat(4,1fr);}
.card{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  padding:30px;transition:transform .3s,border-color .3s,box-shadow .3s;position:relative;overflow:hidden;
}
.card:hover{transform:translateY(-8px);border-color:rgba(0,212,163,.4);box-shadow:var(--shadow);}
.card .icon{
  width:52px;height:52px;border-radius:12px;background:var(--grad);
  display:flex;align-items:center;justify-content:center;font-size:1.4rem;margin-bottom:18px;
}
.card h3{font-size:1.15rem;font-weight:700;margin-bottom:10px;}
.card p{color:var(--text-dim);font-size:.92rem;}

/* Product tabs */
.tabs{display:flex;gap:12px;justify-content:center;margin-bottom:40px;flex-wrap:wrap;}
.tab-btn{
  padding:10px 22px;border-radius:999px;border:1px solid var(--border);background:var(--surface);
  color:var(--text-dim);font-weight:600;font-size:.88rem;cursor:pointer;transition:.25s;
}
.tab-btn.active{background:var(--grad);color:#04120e;border-color:transparent;}
.product-panel{display:none;}
.product-panel.active{display:block;animation:fadeIn .4s ease;}
@keyframes fadeIn{from{opacity:0;transform:translateY(10px);}to{opacity:1;transform:translateY(0);}}
.product-list{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;}
.product-item{
  background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:18px 20px;
  display:flex;align-items:center;gap:14px;transition:.25s;
}
.product-item:hover{border-color:var(--primary);transform:translateX(4px);}
.product-item .bullet{width:8px;height:8px;border-radius:50%;background:var(--grad);flex-shrink:0;}
.product-item span{font-size:.92rem;font-weight:500;}

/* Timeline / About */
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center;}
.about-img{border-radius:20px;overflow:hidden;border:1px solid var(--border);box-shadow:var(--shadow);}
.timeline{border-left:2px solid var(--border);padding-left:28px;margin-top:24px;}
.timeline-item{position:relative;margin-bottom:24px;}
.timeline-item::before{content:"";position:absolute;left:-34px;top:4px;width:12px;height:12px;border-radius:50%;background:var(--grad);}
.timeline-item h4{font-weight:700;margin-bottom:4px;}
.timeline-item p{color:var(--text-dim);font-size:.9rem;}

/* Clients */
.clients-marquee{overflow:hidden;position:relative;}
.marquee-track{display:flex;gap:60px;animation:scroll 25s linear infinite;width:max-content;}
@keyframes scroll{from{transform:translateX(0);}to{transform:translateX(-50%);}}
.marquee-track img{height:44px;filter:grayscale(1) brightness(2);opacity:.6;transition:.3s;}
.marquee-track img:hover{filter:none;opacity:1;}

/* Contact */
.contact-grid{display:grid;grid-template-columns:0.9fr 1.1fr;gap:50px;}
.contact-info-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:34px;}
.info-row{display:flex;gap:16px;margin-bottom:24px;align-items:flex-start;}
.info-row .icon{width:44px;height:44px;flex-shrink:0;margin-bottom:0;}
.info-row h4{font-weight:700;margin-bottom:4px;font-size:.95rem;}
.info-row p{color:var(--text-dim);font-size:.88rem;}
.form-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:34px;}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:18px;}
.field{display:flex;flex-direction:column;gap:8px;}
.field label{font-size:.82rem;color:var(--text-dim);font-weight:600;}
.field input,.field select,.field textarea{
  background:var(--bg-alt);border:1px solid var(--border);border-radius:10px;
  padding:12px 14px;color:var(--text);font-family:inherit;font-size:.92rem;
  transition:border-color .25s;
}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--primary);}
.form-status{margin-top:14px;font-size:.88rem;color:var(--primary);min-height:20px;}

/* Footer */
footer{border-top:1px solid var(--border);padding:60px 0 30px;background:var(--bg-alt);}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:40px;margin-bottom:40px;}
.footer-grid h4{font-weight:700;margin-bottom:16px;font-size:.95rem;}
.footer-grid ul{list-style:none;}
.footer-grid li{margin-bottom:10px;}
.footer-grid a{color:var(--text-dim);font-size:.88rem;transition:.25s;}
.footer-grid a:hover{color:var(--primary);}
.footer-bottom{
  display:flex;justify-content:space-between;align-items:center;padding-top:24px;
  border-top:1px solid var(--border);color:var(--text-dim);font-size:.82rem;flex-wrap:wrap;gap:10px;
}
.socials{display:flex;gap:12px;}
.socials a{
  width:38px;height:38px;border-radius:10px;background:var(--surface);border:1px solid var(--border);
  display:flex;align-items:center;justify-content:center;transition:.25s;
}
.socials a:hover{background:var(--grad);color:#04120e;}

/* back to top */
#backToTop{
  position:fixed;bottom:30px;right:30px;width:48px;height:48px;border-radius:50%;
  background:var(--grad);display:flex;align-items:center;justify-content:center;
  cursor:pointer;opacity:0;pointer-events:none;transition:.3s;z-index:900;color:#04120e;font-weight:900;
}
#backToTop.show{opacity:1;pointer-events:auto;}

/* reveal animation */
.reveal{opacity:0;transform:translateY(30px);transition:opacity .7s ease,transform .7s ease;}
.reveal.in{opacity:1;transform:translateY(0);}

/* Page header (non-home pages) */
.page-hero{padding:150px 0 70px;text-align:center;}
.page-hero h1{font-size:clamp(2rem,4vw,3rem);}
.breadcrumb{color:var(--text-dim);font-size:.9rem;margin-top:12px;}
.breadcrumb a{color:var(--primary);}

@media(max-width:900px){
  .hero-grid,.about-grid,.contact-grid{grid-template-columns:1fr;}
  .stats-grid{grid-template-columns:repeat(2,1fr);}
  .grid-3,.grid-4{grid-template-columns:repeat(2,1fr);}
  .nav-links{position:fixed;top:0;right:-100%;width:70%;height:100vh;background:var(--bg-alt);
    flex-direction:column;justify-content:center;gap:30px;transition:right .35s;border-left:1px solid var(--border);}
  .nav-links.open{right:0;}
  .burger{display:flex;}
  .hero-visual{height:320px;margin-top:20px;}
  .product-list{grid-template-columns:1fr;}
  .form-row{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
}
@media(max-width:600px){
  .grid-3,.grid-4{grid-template-columns:1fr;}
  .stats-grid{grid-template-columns:repeat(2,1fr);}
}