@media(max-width:900px){
  .main-nav{gap:17px}
  .hero-grid,.section-head.split,.security-grid,.offer-grid,.faq-grid,.contact-box{grid-template-columns:1fr;gap:45px}
  .hero{padding-top:70px}
  .hero-system{max-width:650px;width:100%;margin:auto}
  .product-grid{grid-template-columns:1fr}
  .product-card{min-height:260px}
  .product-card h3{margin-top:35px}
  .proof-grid{grid-template-columns:1fr 1fr}
  .proof-grid>div:nth-child(3){border-left:0;padding-left:0}
  .proof-grid>div:nth-child(3),.proof-grid>div:nth-child(4){border-top:1px solid var(--line)}
}
@media(max-width:700px){
  .wrap{width:min(100% - 30px,1180px)}
  .nav-wrap{height:68px}
  .menu-toggle{display:block}
  .main-nav{
    position:absolute;left:15px;right:15px;top:76px;display:none;
    flex-direction:column;align-items:stretch;padding:14px;background:#fff;border:1px solid var(--line);
    border-radius:18px;box-shadow:var(--shadow)
  }
  .main-nav.open{display:flex}
  .main-nav a{padding:10px}
  .nav-cta{text-align:center}
  .hero{padding:58px 0}
  .hero h1{font-size:57px}
  .hero-lead{font-size:17px}
  .hero-actions{align-items:flex-start;flex-direction:column;gap:18px}
  .hero-note{display:grid;gap:7px}
  .hero-note span+span{border-left:0;padding-left:0}
  .proof-grid{grid-template-columns:1fr}
  .proof-grid>div+div{border-left:0;border-top:1px solid var(--line);padding-left:0}
  .section{padding:82px 0}
  .section h2{font-size:46px}
  .step{grid-template-columns:45px 1fr;gap:12px}
  .contact-box{padding:32px 22px;border-radius:22px}
  .footer-top{flex-direction:column}
  .footer-top nav{justify-content:flex-start}
  .footer-bottom{flex-direction:column}
}


@media(max-width:900px){
  .nav-tools{margin-left:12px}
}
@media(max-width:700px){
  .nav-tools{margin-left:auto;margin-right:8px;gap:6px}
  .theme-icon{font-size:14px}
  .theme-track{width:31px}
}