.header{background:linear-gradient(115deg,rgba(17,28,43,.96),rgba(5,12,21,.96))!important;border:1px solid #75c9ff45!important;box-shadow:0 12px 45px #0007,inset 0 1px #ffffff18!important;backdrop-filter:blur(24px)!important;overflow:visible!important}.header nav{position:static!important;gap:6px!important}.header nav>a:not(.nav-contact),.header .nav-group>summary{padding:12px 15px!important;border-radius:12px;font-size:13px!important;transition:background .2s,color .2s}.header nav>a:not(.nav-contact):hover,.header .nav-group>summary:hover,.header .nav-group[open]>summary{background:#159cfa20!important;color:#8fd8ff!important}.header .nav-group{position:static!important}.header .nav-submenu{position:absolute!important;top:calc(100% + 14px)!important;right:18px!important;left:auto!important;width:min(660px,calc(100vw - 64px))!important;min-width:0!important;padding:22px!important;background:radial-gradient(ellipse at top right,#123b58 0,transparent 65%),linear-gradient(145deg,#111d2c,#080f19)!important;border:1px solid #68c8ff55!important;border-radius:22px!important;box-shadow:0 28px 70px #000a,inset 0 1px #ffffff16!important;display:grid!important;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px!important;animation:oxoNavIn .18s ease-out;max-height:calc(100vh - 140px);overflow:auto}.header details:not([open])>.nav-submenu{display:none!important}.header .nav-submenu:before{content:attr(data-heading);grid-column:1/-1;color:#76caff;font-size:11px;letter-spacing:.16em;text-transform:uppercase;padding:0 5px 9px}.header .nav-submenu a{position:relative;display:flex!important;flex-direction:column;align-items:flex-start!important;gap:7px!important;margin:0!important;padding:19px 36px 19px 18px!important;border:1px solid #ffffff10!important;border-radius:13px!important;background:#ffffff04!important;font-size:14px!important;line-height:1.4!important;font-weight:600!important;white-space:normal!important;transition:background .2s,border-color .2s,transform .2s}.header .nav-submenu a:after{content:'↗';position:absolute;right:15px;top:18px;color:#67c9ff;font-size:17px}.header .nav-submenu a:hover,.header .nav-submenu a:focus-visible{background:#168bcc20!important;border-color:#68c8ff80!important;transform:translateY(-2px)}.header .nav-submenu small{font-size:11px;line-height:1.5;font-weight:400;color:#a8b8ca}.header summary:focus-visible,.header a:focus-visible{outline:2px solid #79d3ff;outline-offset:4px}@keyframes oxoNavIn{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}@media(prefers-reduced-motion:reduce){.header *{animation:none!important;transition:none!important}}@media(max-width:600px){.header .nav-submenu{grid-template-columns:1fr;width:calc(100vw - 40px)!important;right:0!important}}