body{
background:#0a0a0a;
color:white;
font-family:Arial;
margin:0;
}

.header{
background:black;
padding:20px;
text-align:center;
}

.hero{
text-align:center;
padding:100px 20px;
}

.btn{
background:#25D366;
padding:12px 20px;
color:white;
text-decoration:none;
border-radius:6px;
}

#diamond-grid{
display:grid;
grid-template-columns:repeat(auto-fill,minmax(260px,1fr));
gap:25px;
padding:40px;
}

.diamond-card{
background:#111;
border-radius:10px;
overflow:hidden;
}

.video-wrapper{
position:relative;
aspect-ratio:1;
}

.video-thumb{
width:100%;
height:100%;
object-fit:cover;
}

.hover-video{
position:absolute;
top:0;
left:0;
width:100%;
height:100%;
display:none;
}

.play-icon{
position:absolute;
top:50%;
left:50%;
transform:translate(-50%,-50%);
font-size:35px;
}

.whatsapp-btn{
display:block;
margin:10px;
padding:10px;
background:#25D366;
text-align:center;
border-radius:5px;
color:white;
text-decoration:none;
}