body{
  margin:0;
  font-family: "Hiragino Kaku Gothic ProN", sans-serif;
  background: linear-gradient(135deg,#d7f5e9,#f0fff7);
  color:#333;
  text-align:center;
}

header{
  background:#2ecc71;
  color:white;
  padding:40px 20px;
}

header h1{
  margin:0;
  font-size:40px;
}

.section{
  padding:40px 20px;
}

.card{
  background:white;
  margin:20px auto;
  padding:25px;
  width:80%;
  max-width:600px;
  border-radius:15px;
  box-shadow:0 8px 20px rgba(0,0,0,0.1);
  transition:0.3s;
}

.card:hover{
  transform:scale(1.03);
}

.button{
  display:inline-block;
  padding:12px 25px;
  background:#27ae60;
  color:white;
  text-decoration:none;
  border-radius:30px;
  margin-top:20px;
  transition:0.3s;
}

.button:hover{
  background:#219150;
}

footer{
  background:#2ecc71;
  color:white;
  padding:15px;
  margin-top:40px;
}