/* assets/styles.css - mobile-first, modern dark UI */
/* System font stack */
:root{
  --bg:#071028;
  --panel:#0b1020;
  --muted:#9aa4b2;
  --accent1:#7c5cff;
  --accent2:#21d4fd;
  --glass: rgba(255,255,255,0.03);
  --radius:14px;
}

*{box-sizing:border-box}
html,body{height:100%}
body{margin:0;font-family:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial;smooth-font-smoothing:antialiased;background:linear-gradient(180deg,var(--bg),#050618);color:#e6eef8;line-height:1.45}
.container{max-width:1100px;margin:0 auto;padding:20px}
.topbar{backdrop-filter: blur(6px);position:sticky;top:0;z-index:60;background:linear-gradient(180deg, rgba(11,16,32,0.6), transparent);}
.nav-inner{display:flex;gap:12px;align-items:center;justify-content:space-between;padding:10px 0}
.brand{display:flex;align-items:center;text-decoration:none;color:inherit}
.logo{width:140px;height:36px}
.nav{display:flex;gap:18px;align-items:center}
.nav a{color:var(--muted);text-decoration:none;font-weight:600;font-size:14px}
.nav a.cta{background:linear-gradient(90deg,var(--accent1),var(--accent2));padding:8px 12px;border-radius:10px;color:#031022}
.hamburger{display:none;background:none;border:0;cursor:pointer;padding:8px}
.hamburger span{display:block;width:20px;height:2px;background:var(--muted);margin:4px 0;border-radius:2px}

/* Mobile nav */
.mobile-nav{display:none;flex-direction:column;background:var(--panel);padding:12px;border-bottom-left-radius:10px;border-bottom-right-radius:10px}
.mobile-nav a{padding:8px 0;color:var(--muted);text-decoration:none}

/* Hero */
.hero{display:grid;grid-template-columns:1fr;gap:20px;padding:32px 0;align-items:center}
.headline{font-size:28px;margin:0 0 10px 0;line-height:1.05}
.lede{color:var(--muted);margin:0 0 16px}
.hero-ctas{display:flex;gap:10px;align-items:center}
.btn{display:inline-block;padding:10px 14px;border-radius:10px;text-decoration:none;font-weight:700;cursor:pointer}
.btn-primary{background:linear-gradient(90deg,var(--accent1),var(--accent2));color:#041024}
.btn-ghost{background:transparent;border:1px solid rgba(255,255,255,0.06);color:var(--muted)}
.btn-sm{background:transparent;border:1px solid rgba(255,255,255,0.06);padding:6px 10px;border-radius:8px}

/* quick-cta */
.quick-cta{display:flex;gap:12px;list-style:none;padding:8px 0;margin:14px 0 0;color:var(--muted)}
.quick-cta li{font-weight:600;font-size:13px}

/* Visual */
.hero-right{display:flex;justify-content:center}
.viz{width:100%;max-width:420px;height:220px;border-radius:12px;background:linear-gradient(180deg, rgba(255,255,255,0.02), transparent);display:flex;align-items:center;justify-content:center;padding:14px;border:1px solid rgba(255,255,255,0.03)}
.viz-svg{width:100%;height:100%}
.node{fill:transparent;stroke:url(#strokeGrad);stroke-width:1.6}
.edge{stroke:url(#strokeGrad);stroke-opacity:0.9;stroke-width:1.6;stroke-linecap:round}

/* Why grid */
.why{padding:40px 0}
.why-grid{display:grid;grid-template-columns:1fr;gap:14px}
.why-card{background:var(--panel);border-radius:12px;padding:18px;border:1px solid rgba(255,255,255,0.03)}
.why-card h3{margin:0 0 6px}
.muted{color:var(--muted);font-size:14px}

/* Featured cards */
.featured{padding:28px 0}
.section-head{margin-bottom:12px}
.cards{display:grid;grid-template-columns:1fr;gap:12px}
.product{background:linear-gradient(180deg, rgba(255,255,255,0.01), transparent);padding:16px;border-radius:12px;border:1px solid rgba(255,255,255,0.03)}
.product header{display:flex;gap:12px;align-items:center}
.p-icon{font-size:22px}
.product ul{list-style: none;padding:8px 0 0;margin:0;color:var(--muted)}
.product-foot{display:flex;gap:12px;align-items:center;justify-content:space-between;margin-top:12px}
.link{color:var(--accent2);text-decoration:none;font-weight:700}

/* Contact */
.contact{display:grid;grid-template-columns:1fr;gap:18px;padding:32px 0}
.contact-left{grid-column:1}
.contact-form{display:grid;gap:10px}
.contact-form label{display:block}
.contact-form span{display:block;font-weight:700;margin-bottom:6px}
.contact-form input,.contact-form select,.contact-form textarea{width:100%;padding:10px;border-radius:8px;border:1px solid rgba(255,255,255,0.04);background:rgba(255,255,255,0.02);color:inherit}

/* contact-right */
.contact-right{display:none}
.contact-card{background:var(--panel);padding:16px;border-radius:12px;border:1px solid rgba(255,255,255,0.03)}

/* Footer */
.footer{padding:24px 0;text-align:center;color:var(--muted)}

/* Models page */
.models-hero{padding:28px 0}
.model-grid{display:grid;gap:16px;padding:20px 0}
.model-card{background:linear-gradient(180deg, rgba(255,255,255,0.01), transparent);padding:18px;border-radius:12px;border:1px solid rgba(255,255,255,0.03)}
.model-head h2{margin:0}
.specs{list-style:none;padding:0;margin:10px 0;color:var(--muted)}
.model-footer{display:flex;gap:12px;align-items:center;justify-content:space-between;margin-top:12px}
.metric{color:var(--muted);font-size:13px}
.metric-val{color:var(--accent2);font-weight:800}

/* small contact */
.small-contact{padding:24px 0}

/* hidden */
.hidden{display:none}

/* Responsive */
@media(min-width:800px){
  .hero{grid-template-columns:1fr 480px;gap:30px;padding:56px 0}
  .headline{font-size:40px}
  .why-grid{grid-template-columns:repeat(3,1fr)}
  .cards{grid-template-columns:repeat(3,1fr)}
  .contact{grid-template-columns:2fr 1fr;gap:20px}
  .contact-right{display:block}
  .nav a{font-size:15px}
  .hamburger{display:none}
  .mobile-nav{display:none}
}

@media(max-width:799px){
  .nav{display:none}
  .hamburger{display:block}
  .mobile-nav{display:flex}
}