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

body{
    font-family:Arial, Helvetica, sans-serif;
    background:#000;
    color:#fff;
}

header{
    width:100%;
    height:100vh;
    background:#111;
    display:flex;
    justify-content:center;
    align-items:center;
    flex-direction:column;
    text-align:center;
}

header h1{
    font-size:80px;
    letter-spacing:10px;
}

header p{
    font-size:22px;
    margin-top:20px;
}

.btn{
    margin-top:40px;
    padding:18px 45px;
    border:2px solid white;
    color:white;
    text-decoration:none;
    transition:.3s;
}

.btn:hover{
    background:white;
    color:black;
}

section{
    padding:100px 10%;
}

h2{
    text-align:center;
    margin-bottom:50px;
}

.cards{
    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(250px,1fr));
    gap:25px;
}

.card{
    background:#111;
    border-radius:15px;
    overflow:hidden;
    transition:.3s;
}

.card:hover{
    transform:translateY(-10px);
}

.card img{
    width:100%;
}

.card h3{
    padding:20px;
    text-align:center;
}

footer{
    background:#111;
    text-align:center;
    padding:50px;
}