.hch-header.scrolled{background:rgba(9,9,15,.96);backdrop-filter:blur(22px);-webkit-backdrop-filter:blur(22px);border-bottom:1px solid rgba(0,106,167,.18);box-shadow:0 1px 0 rgba(0,106,167,.1),0 8px 40px rgba(0,0,0,.75)}.hch-header.scrolled::before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:linear-gradient(90deg,var(--blued) 0%,var(--blue) 30%,var(--blueh) 50%,var(--blue) 70%,var(--blued) 100%);background-size:200% 100%;animation:hchSlide 4s linear infinite}.hch-burger.open span:nth-child(1){transform:translateY(6.5px) rotate(45deg)}.hch-burger.open span:nth-child(2){opacity:0}.hch-burger.open span:nth-child(3){transform:translateY(-6.5px) rotate(-45deg)}.hch-drawer.open{transform:translateX(0)}@media (prefers-reduced-motion:reduce){.hch-header.scrolled::before{animation:none}}