body{
margin:0;
font-family:Arial;
background:#f2f2f2;
}

header{
background:#2c3e50;
color:white;
padding:15px;
}

nav a{
color:white;
margin-right:15px;
text-decoration:none;
}

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

.btn{
background:#3498db;
padding:10px 20px;
color:white;
text-decoration:none;
border-radius:5px;
}

.login-box{
width:350px;
margin:80px auto;
background:white;
padding:30px;
border-radius:10px;
box-shadow:0 0 10px #ccc;
}

input{
width:100%;
padding:10px;
margin:10px 0;
}

button{
width:100%;
padding:10px;
background:#3498db;
border:none;
color:white;
cursor:pointer;
}

.container{
padding:30px;
}

.card{
background:white;
padding:20px;
margin-top:15px;
border-radius:8px;
box-shadow:0 0 5px gray;
}