@media (max-width:768px){.header-container{flex-direction:column;text-align:center}nav ul{flex-wrap:wrap;justify-content:center;margin-top:15px}nav ul li{margin:0 10px 10px}.hero h1{font-size:2.5rem}.hero h2{font-size:1.4rem}.about-content{flex-direction:column}.mobile-menu{display:block;position:absolute;right:15px;top:15px}nav{display:none;margin-top:15px;width:100%}nav.active{display:block}nav ul{flex-direction:column}nav ul li{margin:10px 0}h1{font-size:2.5rem}h2{font-size:2rem}section{padding:70px 0}.contacts-content{gap:30px;grid-template-columns:1fr}.contact-form,.contact-info{width:100%}}@media (max-width:480px){.hero{padding:150px 0 100px}.hero h1{font-size:2rem}.hero h2{font-size:1.2rem}.advantages-grid,.products-grid{gap:20px;grid-template-columns:1fr}}@keyframes fadeInUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}@keyframes slideIn{0%{opacity:0;transform:translateX(-20px)}to{opacity:1;transform:translateX(0)}}