body{
font-family:Arial, sans-serif;
background:#f4f6f9;
margin:0;
text-align:center;
}

header{
background:#1976d2;
color:white;
padding:18px;
font-size:20px;
font-weight:bold;
}

.container{
display:grid;
grid-template-columns:repeat(3,1fr);
gap:16px;
padding:20px;
max-width:500px;
margin:auto;
}

.card{
background:white;
border-radius:14px;
padding:25px 10px;
box-shadow:0 4px 12px rgba(0,0,0,0.12);
cursor:pointer;
transition:0.2s;
display:flex;
align-items:center;
justify-content:center;
}

.card:hover{
transform:scale(1.05);
}

.logo{
max-width:90px;
height:auto;
}

footer{
margin-top:10px;
font-size:13px;
color:#555;
padding-bottom:20px;
}