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span:nth-child(1){transform:translateY(8px) rotate(45deg)}.burger.active span:nth-child(2){opacity:0}.burger.active span:nth-child(3){transform:translateY(-8px) rotate(-45deg)}@media (max-width:1000px){.nav{display:none}.burger{display:flex}.lang-switcher{display:none}}.mobile-lang-switcher{display:flex;gap:12px;margin-top:24px;padding-top:16px;border-top:1px solid rgba(255,255,255,.2)}.mobile-lang-switcher button{flex:1;background:0 0;border:1px solid rgba(255,255,255,.4);color:#fff;padding:10px 0;font-size:.9rem;cursor:pointer;transition:background .2s,border-color .2s}.mobile-lang-switcher button:hover{background-color:var(--color-accent);border-color:var(--color-accent)}.fade-in{opacity:0;transform:translateY(48px);transition:opacity 1s ease,transform 1s ease}.fade-in.visible{opacity:1;transform:translateY(0)}@media (max-width:1024px){.services-grid{grid-template-columns:1fr}}@media (max-width:768px){section{padding:60px 16px}.nav{display:none}.hero{min-height:70vh}.equipment-swiper,.infrastructure-swiper{height:640px}}@media (max-width:480px){.about-facts{grid-template-columns:1fr}}