:root{
--bg:#0b0f1c;
--bg2:#0a1224;
--card:#11172a;
--card2:#0f1527;
--stroke:rgba(255,255,255,.07);
--stroke2:rgba(0,255,220,.18);

--text:#e9eef7;
--muted:rgba(233,238,247,.62);
--muted2:rgba(233,238,247,.40);

--accent:#00e6ff;
--accent2:#00ffbf;

--shadow: 0 30px 80px rgba(0,0,0,.45);
--r:24px;
--r2:18px;

--container:1180px;
}

html{
scroll-behavior:smooth;
}

body{
font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
background: radial-gradient(1200px 700px at 20% 0%, rgba(0,230,255,.10), transparent 60%),
radial-gradient(900px 600px at 90% 10%, rgba(0,255,191,.10), transparent 55%),
linear-gradient(180deg, var(--bg) 0%, var(--bg2) 100%);
color:var(--text);
overflow-x:hidden;
}

.container{
width:min(var(--container), calc(100% - 48px));
margin-inline:auto;
}

.section{
padding: 72px 0;
}

.bg-aurora{
position:fixed;
inset:-30%;
pointer-events:none;
background:
radial-gradient(800px 500px at 30% 20%, rgba(0,230,255,.12), transparent 60%),
radial-gradient(700px 450px at 70% 35%, rgba(0,255,191,.10), transparent 60%),
radial-gradient(900px 700px at 50% 80%, rgba(90,120,255,.08), transparent 60%);
filter: blur(40px);
opacity:.75;
z-index:-1;
}

.topbar{
position:sticky;
top:0;
z-index:50;
backdrop-filter: blur(10px);
background: linear-gradient(180deg, rgba(10,14,28,.78) 0%, rgba(10,14,28,.55) 100%);
}

.topbar__inner{
height:74px;
display:flex;
align-items:center;
justify-content:space-between;
gap:24px;
}

.topbar__line{
height:1px;
background: linear-gradient(90deg, transparent 0%, rgba(255,255,255,.10) 20%, rgba(255,255,255,.05) 80%, transparent 100%);
}

.brand{
display:flex;
align-items:center;
gap:12px;
}

.brand__mark{
width:44px;height:44px;
border-radius:12px;
display:grid;place-items:center;
font-weight:900;
letter-spacing:.5px;
color:#07121a;
background: linear-gradient(135deg, var(--accent) 0%, var(--accent2) 100%);
box-shadow: 0 18px 40px rgba(0,230,255,.18);
}

.brand__text{display:flex;flex-direction:column;line-height:1.05}
.brand__name{font-weight:800; letter-spacing:.2px}
.brand__tag{font-size:12px;color:rgba(0,230,255,.85); margin-top:2px}

.nav{
display:flex;
gap:26px;
align-items:center;
font-family: "Space Grotesk", Inter, system-ui, sans-serif;
}

.nav__link{
font-size:15px;
color:rgba(233,238,247,.72);
position:relative;
padding:10px 0;
}

.nav__link.is-active{
color:var(--accent);
}

.nav__link.is-active::after{
content:"";
position:absolute;
left:0; right:0; bottom:4px;
height:2px;
background: linear-gradient(90deg, transparent 0%, var(--accent) 25%, var(--accent2) 75%, transparent 100%);
opacity:.95;
}

.card{
background: linear-gradient(180deg, rgba(17,23,42,.82) 0%, rgba(14,19,36,.70) 100%);
border:1px solid var(--stroke);
border-radius: var(--r);
box-shadow: var(--shadow);
}

.btn{
display:inline-flex;
align-items:center;
justify-content:center;
gap:10px;
padding:14px 18px;
border-radius: 14px;
border:1px solid rgba(255,255,255,.10);
font-weight:700;
letter-spacing:.6px;
text-transform:uppercase;
font-size:13px;
transition: transform .15s ease, filter .15s ease, border-color .15s ease;
user-select:none;
}

.btn:hover{transform: translateY(-1px); filter: brightness(1.05)}
.btn__arrow{font-size:18px; line-height:1; margin-top:-2px}

.btn--primary{
background: linear-gradient(135deg, var(--accent) 0%, var(--accent2) 100%);
color:#07121a;
border-color: transparent;
box-shadow: 0 18px 50px rgba(0,230,255,.18);
}

.btn--ghost{
background: transparent;
color: rgba(233,238,247,.85);
border-color: rgba(0,230,255,.20);
}

.btn--wide{min-width: 260px}

.kicker{
color: rgba(233,238,247,.65);
font-size:12px;
letter-spacing: 2px;
font-weight:700;
text-transform:uppercase;
margin-bottom:10px;
}

.display{
font-family:"Space Grotesk", Inter, system-ui, sans-serif;
font-size:72px;
line-height:.92;
letter-spacing: 1px;
text-transform:uppercase;
}

.display__line--white{color:rgba(233,238,247,.95)}
.display__line--accent{color:var(--accent)}

.footer{
padding: 22px 0 38px;
border-top:1px solid rgba(255,255,255,.06);
background: linear-gradient(180deg, rgba(10,14,28,.0) 0%, rgba(10,14,28,.35) 100%);
}

.footer__inner{
display:flex;
align-items:center;
justify-content:space-between;
gap:18px;
color:rgba(233,238,247,.65);
}

.footer__brand{color:rgba(233,238,247,.92); font-weight:800}
.footer__muted{margin-left:10px; color:rgba(0,230,255,.75)}
.footer__right a{color:rgba(233,238,247,.72)}
.footer__right a:hover{color:var(--accent)}

@media (max-width: 980px){
.display{font-size:56px}
.section{padding:56px 0}
}

@media (max-width: 720px){
.topbar__inner{height:auto; padding:14px 0; flex-wrap:wrap}
.nav{gap:16px}
.display{font-size:44px}
}