.header{position:fixed;top:0;left:0;z-index:1000;width:100%;padding:15px 0;background:rgba(255,255,255,.94);border-bottom:1px solid #e8e8ef;backdrop-filter:blur(10px);transform:translateY(0);transition:transform .3s ease,box-shadow .3s ease;will-change:transform}.header.is-hidden{transform:translateY(-100%)}.header.is-scrolled{box-shadow:0 8px 24px rgba(0,0,0,.08)}.header .header-block{display:flex;align-items:center;justify-content:space-between}.header .logo{display:flex;align-items:center;flex-shrink:0}.header .logo img{display:block;max-width:245px;width:100%;height:auto;object-fit:contain}.header .nav{display:flex;align-items:center;justify-content:space-between;gap:40px;width:100%}.header .nav a{font-size:1rem;color:#5d6066;font-weight:500;text-decoration:none;transition:color .3s ease,background-color .3s ease}.header .nav a.active,.header .nav a:hover{color:#1a73e8!important}.header .left-section{display:flex;justify-content:center;gap:1rem;width:100%}.header .right-section{display:flex;gap:1rem;flex-shrink:0}.header .main-btn{padding:12px 32px;color:#fff;white-space:nowrap}.header .main-btn:hover{background:#fff;color:#1a73e8}.header .main-btn.outlined{color:#1a73e8;background:rgba(0,123,255,.1019607843);border:2px solid #1a73e8;box-shadow:none}.header .burger{display:none;align-items:center;justify-content:center;width:40px;height:40px;padding:0;background:0 0;border:none;cursor:pointer}.header .burger .burger__icon{display:block;width:100%;height:100%;object-fit:contain}.header .burger .burger__icon--close{display:none}.header .burger.active .burger__icon--open{display:none}.header .burger.active .burger__icon--close{display:block}body{padding-top:var(--header-height,90px)}body.menu-open{overflow:hidden}@media (max-width:768px){.header .burger{display:flex;z-index:2}.header .nav{position:absolute;top:100%;left:0;width:100%;padding:1rem;display:flex;flex-direction:column;align-items:stretch;gap:16px;background:#fff;opacity:0;pointer-events:none;transform:translateY(-10px);transition:opacity .3s ease,transform .3s ease}.header .nav a{width:100%;font-size:18px;text-align:left}.header .nav.active{opacity:1;pointer-events:auto;transform:translateY(0)}.header .left-section{flex-direction:column;gap:1rem}.header .right-section{display:flex;justify-content:space-between;gap:1rem;width:100%}.header .main-btn{max-width:fit-content}}