:root{
  /* Light theme (default) */
  --bg:#f5f7fb;
  --bg-alt:#ffffff;
  --navy:#0f2e6b;
  --blue:#3b82f6;
  --blue-light:#60a5fa;
  --green:#3CB043;
  --ink:#101828;
  --muted:#5b6b85;
  --glass-bg:rgba(15,46,107,0.045);
  --glass-border:rgba(15,46,107,0.12);
  --hover-bg:rgba(15,46,107,0.06);
  --header-bg:rgba(245,247,251,0.72);
  --mobile-nav-bg:rgba(255,255,255,0.98);
  --input-bg:rgba(15,46,107,0.03);
  --svg-outline:rgba(15,46,107,0.16);
  --node-bg:rgba(15,46,107,0.06);
  --node-border:rgba(15,46,107,0.18);
  --node-icon:#0f2e6b;
  --blob-opacity:0.16;
  --shadow-strong:rgba(15,46,107,0.18);
  --shadow-mid:rgba(15,46,107,0.14);
  --radius:22px;
  --max-w:1200px;
}

[data-theme="dark"]{
  --bg:#05070d;
  --bg-alt:#0b0f1a;
  --ink:#e7ecf8;
  --muted:#93a1c2;
  --glass-bg:rgba(255,255,255,0.045);
  --glass-border:rgba(255,255,255,0.10);
  --hover-bg:rgba(255,255,255,0.06);
  --header-bg:rgba(5,7,13,0.6);
  --mobile-nav-bg:rgba(8,11,20,0.96);
  --input-bg:rgba(255,255,255,0.04);
  --svg-outline:rgba(255,255,255,0.14);
  --node-bg:rgba(255,255,255,0.08);
  --node-border:rgba(255,255,255,0.18);
  --node-icon:#ffffff;
  --blob-opacity:0.35;
  --shadow-strong:rgba(0,0,0,0.45);
  --shadow-mid:rgba(0,0,0,0.35);
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"Inter","Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  color:var(--ink);
  background:var(--bg);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
  transition:background-color .3s ease,color .3s ease;
}
img,svg{display:block;max-width:100%;}
a{color:inherit;text-decoration:none;}
ul{list-style:none;margin:0;padding:0;}
.container{max-width:var(--max-w);margin:0 auto;padding:0 24px;position:relative;z-index:1;}

/* ---------- Background mesh ---------- */
.bg-mesh{position:fixed;inset:0;z-index:0;overflow:hidden;pointer-events:none;}
.blob{
  position:absolute;
  border-radius:50%;
  filter:blur(90px);
  opacity:var(--blob-opacity);
  animation:float 14s ease-in-out infinite;
  transition:opacity .3s ease;
}
.blob-blue{width:520px;height:520px;background:var(--blue);top:-140px;left:-120px;}
.blob-green{width:480px;height:480px;background:var(--blue-light);top:250px;right:-160px;animation-delay:2s;}
.blob-blue-2{width:420px;height:420px;background:var(--navy);bottom:-160px;left:30%;animation-delay:4s;}

@keyframes float{
  0%,100%{transform:translate(0,0) scale(1);}
  50%{transform:translate(20px,-30px) scale(1.06);}
}

@media (prefers-reduced-motion: reduce){
  .blob{animation:none;}
}

/* ---------- Reveal on scroll ---------- */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .7s ease,transform .7s ease;}
.reveal.is-visible{opacity:1;transform:translateY(0);}

/* ---------- Glass card base ---------- */
.glass-card{
  background:var(--glass-bg);
  border:1px solid var(--glass-border);
  border-radius:var(--radius);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  transition:background-color .3s ease,border-color .3s ease;
}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:100;
  background:var(--header-bg);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--glass-border);
  transition:background-color .3s ease,border-color .3s ease;
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  height:76px;gap:20px;
}
.logo{font-size:1.4rem;font-weight:800;color:var(--ink);white-space:nowrap;letter-spacing:-0.02em;}
.logo span{color:var(--blue);}

.main-nav{display:flex;align-items:center;gap:6px;flex:1;justify-content:center;
  background:var(--glass-bg);border:1px solid var(--glass-border);
  border-radius:999px;padding:6px;
}
.main-nav a{
  font-weight:600;color:var(--muted);font-size:0.88rem;
  padding:9px 16px;border-radius:999px;
  transition:color .2s,background .2s;
  white-space:nowrap;
}
.main-nav a:hover{color:var(--ink);background:var(--hover-bg);}
.nav-market{color:var(--blue) !important;font-weight:700;}

.header-actions{display:flex;align-items:center;gap:12px;}
.nav-cta{white-space:nowrap;}

.theme-toggle{
  background:var(--glass-bg);border:1px solid var(--glass-border);
  color:var(--ink);border-radius:999px;
  width:38px;height:38px;
  display:flex;align-items:center;justify-content:center;
  cursor:pointer;padding:0;transition:background .2s;
}
.theme-toggle:hover{background:var(--hover-bg);}
.theme-toggle .icon-moon{display:none;}
[data-theme="dark"] .theme-toggle .icon-sun{display:none;}
[data-theme="dark"] .theme-toggle .icon-moon{display:block;}
.theme-toggle svg{stroke:var(--blue);}

.hamburger{
  display:none;flex-direction:column;justify-content:center;gap:5px;
  width:34px;height:34px;background:none;border:none;cursor:pointer;
}
.hamburger span{display:block;height:2px;background:var(--ink);border-radius:2px;}

@media (max-width:960px){
  .main-nav{
    position:absolute;top:76px;left:16px;right:16px;
    flex-direction:column;align-items:stretch;
    padding:10px;gap:2px;
    background:var(--mobile-nav-bg);
    display:none;
  }
  .main-nav.open{display:flex;}
  .main-nav a{text-align:center;}
  .nav-cta{display:none;}
  .hamburger{display:flex;}
}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  padding:13px 26px;border-radius:999px;font-weight:700;font-size:0.9rem;
  cursor:pointer;border:1px solid transparent;
  transition:transform .15s,box-shadow .2s,background .2s;
}
.btn:hover{transform:translateY(-2px);}
.btn-primary{background:linear-gradient(135deg,var(--blue),var(--navy));color:#ffffff;box-shadow:0 8px 24px rgba(59,130,246,0.35);}
.btn-primary:hover{box-shadow:0 10px 30px rgba(59,130,246,0.5);}
.btn-glass{
  background:var(--glass-bg);border:1px solid var(--glass-border);color:var(--ink);
}
.btn-glass:hover{background:var(--hover-bg);}
.btn-small{padding:9px 20px;font-size:0.8rem;}

/* ---------- Lang toggle ---------- */
.lang-toggle{
  background:var(--glass-bg);border:1px solid var(--glass-border);
  color:var(--ink);border-radius:999px;padding:6px 12px;
  cursor:pointer;font-size:0.78rem;display:flex;align-items:center;gap:6px;
}
.lang-opt{opacity:.5;font-weight:700;}
.lang-opt.active{opacity:1;color:var(--blue);}
.lang-sep{opacity:.35;}

/* ---------- Section base ---------- */
section{padding:110px 0;position:relative;z-index:1;}
.kicker{
  text-align:center;text-transform:uppercase;letter-spacing:2px;
  font-size:0.78rem;font-weight:700;color:var(--blue);margin:0 0 12px;
}
.section-title{
  text-align:center;font-size:clamp(1.8rem,3vw,2.5rem);font-weight:800;
  letter-spacing:-0.02em;max-width:820px;margin:0 auto 60px;color:var(--ink);
}

/* ---------- Hero ---------- */
.hero{padding-top:90px;}
.hero-inner{
  display:grid;grid-template-columns:1.05fr 0.95fr;gap:50px;align-items:center;
  min-height:70vh;
}
.eyebrow{
  text-transform:uppercase;letter-spacing:2px;font-size:0.78rem;font-weight:700;
  color:var(--blue);margin:0 0 16px;
}
.hero h1{
  font-size:clamp(2.2rem,4.4vw,3.4rem);line-height:1.12;font-weight:900;
  letter-spacing:-0.03em;margin:0 0 22px;
}
.hero h1 span{
  background:linear-gradient(90deg,var(--navy),var(--blue) 55%,var(--blue-light));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{font-size:1.1rem;color:var(--muted);max-width:480px;margin:0 0 32px;}
.hero-buttons{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:28px;}
.hero-trust{display:flex;align-items:center;gap:10px;color:var(--muted);font-size:0.88rem;}
.trust-dot{width:8px;height:8px;border-radius:50%;background:var(--blue);box-shadow:0 0 12px var(--blue);}

.hero-art{position:relative;min-height:420px;}
.device-card{
  padding:36px;display:flex;align-items:center;justify-content:center;
  box-shadow:0 30px 80px var(--shadow-strong);
}
.chip{
  position:absolute;padding:14px 18px;display:flex;flex-direction:column;gap:2px;
  box-shadow:0 20px 40px var(--shadow-mid);
}
.chip strong{font-size:1.15rem;font-weight:800;color:var(--blue);}
.chip span{font-size:0.76rem;color:var(--muted);white-space:nowrap;}
.chip-1{top:6%;right:-6%;}
.chip-2{bottom:14%;left:-8%;}
.chip-3{bottom:-4%;right:14%;}

@media (max-width:960px){
  .hero-inner{grid-template-columns:1fr;text-align:center;min-height:auto;}
  .hero-sub{margin-left:auto;margin-right:auto;}
  .hero-buttons{justify-content:center;}
  .hero-trust{justify-content:center;}
  .hero-art{margin-top:50px;min-height:340px;max-width:360px;margin-left:auto;margin-right:auto;}
  .chip{position:static;margin-top:14px;}
}

/* ---------- Stats ---------- */
.stats{padding:50px 0;}
.stats-grid{
  display:grid;grid-template-columns:repeat(4,1fr);
  background:var(--glass-bg);border:1px solid var(--glass-border);
  border-radius:var(--radius);padding:32px 20px;
}
.stat{text-align:center;border-right:1px solid var(--glass-border);}
.stat:last-child{border-right:none;}
.stat strong{display:block;font-size:1.6rem;font-weight:800;color:var(--blue);margin-bottom:4px;}
.stat span{font-size:0.82rem;color:var(--muted);}

@media (max-width:800px){
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:24px;}
  .stat{border-right:none;}
}

/* ---------- Bento grid ---------- */
.bento{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.bento-card{
  background:var(--glass-bg);border:1px solid var(--glass-border);
  border-radius:var(--radius);padding:30px;
  transition:transform .25s,border-color .25s,box-shadow .25s,background-color .3s;
}
.bento-card:hover{
  transform:translateY(-4px);
  border-color:rgba(59,130,246,0.4);
  box-shadow:0 16px 40px var(--shadow-mid);
}
.about-bento .span-big{grid-column:span 2;grid-row:span 2;}
.about-bento .bento-card:nth-child(2),.about-bento .bento-card:nth-child(3){grid-column:span 2;}

.info-icon{
  width:52px;height:52px;border-radius:14px;
  background:rgba(59,130,246,0.12);
  display:flex;align-items:center;justify-content:center;margin-bottom:18px;
}
.info-icon svg{width:26px;height:26px;fill:var(--blue);}
.bento-card h3{margin:0 0 10px;font-size:1.2rem;font-weight:700;}
.bento-card p{margin:0;color:var(--muted);font-size:0.92rem;}

@media (max-width:960px){
  .bento{grid-template-columns:1fr;}
  .about-bento .span-big,.about-bento .bento-card:nth-child(2),.about-bento .bento-card:nth-child(3){grid-column:span 1;grid-row:span 1;}
}

/* ---------- Products bento ---------- */
.products-bento .span-big{grid-column:span 2;grid-row:span 2;}
.product-hero-card{display:flex;flex-direction:column;}
.showcase-svg{width:100%;max-width:260px;margin:0 auto 20px;}
.product-hero-card h3{font-size:1.35rem;margin-bottom:10px;}
.feature-card{display:flex;gap:12px;align-items:flex-start;}
.feature-dot{
  width:10px;height:10px;border-radius:50%;background:var(--blue);
  box-shadow:0 0 10px var(--blue);margin-top:6px;flex-shrink:0;
}
.feature-card p{margin:0;font-size:0.92rem;color:var(--ink);}
.span-wide{grid-column:span 2;}

@media (max-width:960px){
  .products-bento .span-big,.span-wide{grid-column:span 1;grid-row:span 1;}
}

/* ---------- Solution / diagram ---------- */
.solution-sub{text-align:center;max-width:620px;margin:-30px auto 46px;color:var(--muted);}
.diagram-card{max-width:880px;margin:0 auto;padding:30px;}
.diagram-svg{width:100%;height:auto;}
.node-label{font-size:13px;fill:var(--muted);font-family:inherit;font-weight:600;}
.pulse-lines{animation:dash 3s linear infinite;}
@keyframes dash{to{stroke-dashoffset:-24;}}

/* SVG illustration helper classes so device/diagram mockups follow the theme */
.svg-panel{fill:var(--glass-bg);stroke:var(--svg-outline);transition:fill .3s ease,stroke .3s ease;}
.node-circle{fill:var(--node-bg);stroke:var(--node-border);transition:fill .3s ease,stroke .3s ease;}
.node-icon{fill:var(--node-icon);transition:fill .3s ease;}

/* ---------- Contact ---------- */
.contact-inner{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:start;}
.contact-info .section-title{text-align:left;margin:0 0 16px;}
.contact-info p{color:var(--muted);max-width:420px;}
.contact-list{margin:24px 0;display:flex;flex-direction:column;gap:12px;}
.contact-list li{font-size:0.95rem;}
.contact-list strong{color:var(--blue);margin-right:6px;}
.contact-list a{color:var(--ink);font-weight:600;}

.market-card{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;margin-top:8px;transition:transform .2s,border-color .2s;
}
.market-card:hover{transform:translateY(-3px);border-color:rgba(59,130,246,0.4);}
.market-card strong{display:block;font-size:0.98rem;margin-bottom:2px;}
.market-card span{font-size:0.82rem;color:var(--muted);}
.market-arrow{font-size:1.3rem;color:var(--blue);}

.contact-form{padding:32px;display:flex;flex-direction:column;gap:16px;}
.contact-form label{display:flex;flex-direction:column;gap:6px;font-size:0.85rem;font-weight:600;color:var(--muted);}
.contact-form input,.contact-form textarea{
  padding:12px 14px;border:1px solid var(--glass-border);border-radius:12px;
  font-family:inherit;font-size:0.95rem;resize:vertical;
  background:var(--input-bg);color:var(--ink);
  transition:background-color .3s ease,border-color .2s ease;
}
.contact-form input::placeholder,.contact-form textarea::placeholder{color:var(--muted);}
.contact-form input:focus,.contact-form textarea:focus{outline:none;border-color:var(--blue);}
.contact-form .btn{align-self:flex-start;}
.form-note{font-size:0.74rem;color:var(--muted);margin:0;}

.form-success{
  background:rgba(60,176,67,0.12);border:1px solid rgba(60,176,67,0.4);
  border-radius:12px;padding:14px 16px;
}
.form-success p{margin:0;color:var(--green);font-weight:600;font-size:0.9rem;}

@media (max-width:900px){
  .contact-inner{grid-template-columns:1fr;}
}

/* ---------- Footer ---------- */
.site-footer{border-top:1px solid var(--glass-border);}
.footer-inner{
  display:flex;flex-wrap:wrap;gap:30px;justify-content:space-between;align-items:center;
  padding:50px 24px;
}
.footer-brand p{margin:8px 0 0;font-size:0.85rem;max-width:260px;color:var(--muted);}
.footer-nav{display:flex;gap:20px;flex-wrap:wrap;}
.footer-nav a{font-size:0.86rem;color:var(--muted);}
.footer-nav a:hover{color:var(--blue);}
.footer-social a{
  width:34px;height:34px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--glass-bg);border:1px solid var(--glass-border);
  transition:background .2s;
}
.footer-social a:hover{background:rgba(59,130,246,0.18);}
.footer-social svg{width:15px;height:15px;fill:var(--ink);}
.footer-bottom{
  border-top:1px solid var(--glass-border);text-align:center;
  padding:18px 24px;font-size:0.8rem;color:var(--muted);
}