*{
    margin:0;
    padding:0;
    box-sizing:border-box;
    scroll-behavior:smooth;
}

body{
    font-family:'Poppins',sans-serif;
    background:#0b1120;
    color:#fff;
}

/* Navbar */

nav{
    position:fixed;
    top:0;
    left:0;
    width:100%;
    height:75px;
    background:rgba(15,23,42,.8);
    backdrop-filter:blur(15px);
    display:flex;
    justify-content:space-between;
    align-items:center;
    padding:0 70px;
    z-index:999;
}

.logo{
    font-size:28px;
    font-weight:700;
    color:#3b82f6;
}

nav ul{
    display:flex;
    list-style:none;
}

nav ul li{
    margin-left:30px;
}

nav ul li a{
    color:white;
    text-decoration:none;
    transition:.3s;
}

nav ul li a:hover{
    color:#60a5fa;
}

/* Hero */

.hero{
    height:100vh;
    display:flex;
    justify-content:center;
    align-items:center;
    text-align:center;
    background:
    radial-gradient(circle at top,#2563eb 0%,transparent 45%),
    #0b1120;
}

.hero h1{
    font-size:65px;
    margin-bottom:20px;
}

.hero span{
    color:#3b82f6;
}

.hero p{
    color:#cbd5e1;
    font-size:22px;
    margin-bottom:40px;
}

.btn{
    background:#2563eb;
    color:white;
    padding:16px 40px;
    text-decoration:none;
    border-radius:10px;
    transition:.3s;
}

.btn:hover{
    background:#1d4ed8;
}

/* Sections */

section{
    padding:120px 10%;
}

section h2{
    text-align:center;
    font-size:42px;
    margin-bottom:40px;
}

section p{
    color:#cbd5e1;
    font-size:18px;
    line-height:1.8;
    text-align:center;
}

/* Cards */

.cards{
    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(260px,1fr));
    gap:25px;
    margin-top:40px;
}

.card{
    background:#172033;
    padding:35px;
    border-radius:18px;
    transition:.35s;
    border:1px solid rgba(255,255,255,.08);
}

.card:hover{
    transform:translateY(-10px);
    box-shadow:0 0 30px rgba(59,130,246,.35);
}

.card h3{
    margin-bottom:18px;
}

/* Footer */

footer{
    background:#08101d;
    text-align:center;
    padding:35px;
    color:#94a3b8;
}

/* Mobile */

@media(max-width:768px){

nav{
padding:20px;
flex-direction:column;
height:auto;
}

nav ul{
margin-top:15px;
flex-wrap:wrap;
justify-content:center;
}

nav ul li{
margin:10px;
}

.hero h1{
font-size:40px;
}

.hero p{
font-size:18px;
}

}