@media (max-width:980px){
  .about-top{grid-template-columns:1fr}
  .values-grid{grid-template-columns:repeat(2,1fr)}
  .programs-grid{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr;gap:48px}
  .footer-grid{grid-template-columns:1fr 1fr}
  .hero-grid{grid-template-columns:1fr;gap:32px}
}

@media (max-width:900px){
  .nav{
    position:absolute;top:var(--header-h);left:0;right:0;
    background:var(--paper);border-bottom:1px solid var(--line);
    flex-direction:column;align-items:flex-start;gap:0;
    max-height:0;overflow:hidden;transition:max-height .3s ease;
  }
  .nav a{width:100%;padding:16px 32px;border-bottom:1px solid var(--line)}
  .nav a::after{display:none}
  .nav.open{max-height:320px}
  .menu-toggle{display:block}
  .header-right{gap:14px}
  .lang-switch{order:2}
}

@media (max-width:760px){
  .hero-copy{padding-top:20px}
  .section{padding:64px 0}
  .news-item{grid-template-columns:1fr;gap:8px}
  .news-tag{order:-1}
  .container{padding:0 22px}
  .values-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:32px}
}