.hamburger{display:none;font-size:28px;cursor:pointer;color:var(--text)}@media (max-width: 768px){header nav{position:absolute;top:60px;right:20px;background:#fff;flex-direction:column;gap:8px;padding:16px;border:1px solid var(--border, #e8e8f0);border-radius:10px;box-shadow:0 12px 32px #0000001a;display:none;z-index:999}header nav.active{display:flex}.hamburger{display:block}}.ad{margin:30px 0;min-height:90px}