@charset "UTF-8";
    .card_21 {
background: #fff;
padding: 20px;
margin-top: 20px;
margin-bottom: 50px;
border-radius: 10px;
box-shadow: 0 4px 12px rgba(0,0,0,0.05);
}
.btn_21 {
display: inline-block;
padding: 10px 20px;
margin: 5px;
background: #007bff;
color: #fff;
text-decoration: none;
border-radius: 15px;
font-weight: bold;
}
.btn_21:hover {
background: #0056b3;
color: #fff;
}