*{
margin:0;
padding:0;
box-sizing:border-box;
font-family:Arial,sans-serif;
}

body{
background:#050505;
color:white;
}

header{
display:flex;
justify-content:space-between;
align-items:center;
padding:20px 50px;
background:#0d0d0d;
position:sticky;
top:0;
}

.logo img{
height:60px;
}

nav a{
color:white;
text-decoration:none;
margin-left:20px;
}

.hero{
height:90vh;
background:url('preview.jpg') center/cover no-repeat;
display:flex;
align-items:center;
justify-content:center;
}

.overlay{
background:rgba(0,0,0,0.7);
padding:50px;
border-radius:20px;
text-align:center;
}

.hero h1{
font-size:60px;
margin-bottom:20px;
}

.hero span{
color:#9f5cff;
}

.btn{
display:inline-block;
margin-top:20px;
padding:15px 35px;
background:#9f5cff;
color:white;
text-decoration:none;
border-radius:10px;
}

.cards{
display:grid;
grid-template-columns:repeat(auto-fit,minmax(250px,1fr));
gap:20px;
padding:80px 50px;
}

.card{
background:#111;
padding:30px;
border-radius:20px;
border:1px solid #222;
}

.about, .reviews, footer{
padding:80px 50px;
text-align:center;
}

.review{
background:#111;
padding:20px;
margin:20px auto;
max-width:600px;
border-radius:15px;
}