body{
font-family: Arial, sans-serif;
background:#f5f5f5;
margin:0;
padding:0;
}

header{
text-align:center;
padding:20px;
background:#333;
color:white;
}

.container{
max-width:800px;
margin:40px auto;
padding:20px;
background:white;
border-radius:10px;
box-shadow:0 0 10px rgba(0,0,0,0.1);
}

textarea{
width:100%;
height:200px;
padding:10px;
font-size:16px;
border-radius:5px;
border:1px solid #ccc;
}

.result{
display:flex;
justify-content:space-between;
margin-top:20px;
}

.card{
flex:1;
margin:5px;
padding:10px;
background:#fafafa;
border-radius:6px;
text-align:center;
}

footer{
text-align:center;
margin-top:30px;
padding:10px;
color:#666;
}