header{

display:flex;

justify-content:space-between;

align-items:center;

padding:25px 70px;

background:

rgba(
15,
23,
42,
0.92
);

backdrop-filter:blur(10px);

border-bottom:

1px solid rgba(
255,
255,
255,
0.08
);

position:sticky;

top:0;

z-index:1000;

}

.logo{

font-size:28px;

font-weight:700;

color:white;

}

nav{

display:flex;

gap:35px;

}

nav a{

text-decoration:none;

color:white;

font-weight:500;

transition:.3s;

position:relative;

}

nav a:hover{

color:#3B82F6;

}

nav a::after{

content:"";

position:absolute;

left:0;

bottom:-5px;

width:0;

height:2px;

background:#3B82F6;

transition:.3s;

}

nav a:hover::after{

width:100%;

}

@media(max-width:700px){

header{

flex-direction:column;

gap:15px;

padding:20px;

}

nav{

flex-wrap:wrap;

justify-content:center;

gap:20px;

}

}