*{
    margin:0;
    padding:0;
    box-sizing:border-box;
    font-family:Arial,sans-serif;
}

body{
    background:#f4f4f4;
    color:#333;
}

header{
    display:flex;
    justify-content:space-between;
    align-items:center;
    padding:20px 50px;
    background:#222;
    color:white;
}

nav a{
    color:white;
    text-decoration:none;
    margin-left:20px;
}

.hero{
    text-align:center;
    padding:80px 20px;
    background:#0077ff;
    color:white;
}

.hero button{
    margin-top:20px;
    padding:12px 25px;
    border:none;
    background:white;
    color:#0077ff;
    cursor:pointer;
    font-size:16px;
    border-radius:5px;
}

section{
    padding:50px;
}

h2{
    margin-bottom:20px;
}

ul{
    list-style:none;
}

ul li{
    background:#0077ff;
    color:white;
    display:inline-block;
    padding:10px 20px;
    margin:10px;
    border-radius:5px;
}

.card{
    background:white;
    padding:20px;
    margin:20px 0;
    border-radius:10px;
    box-shadow:0 0 10px rgba(0,0,0,.2);
}

footer{
    text-align:center;
    padding:20px;
    background:#222;
    color:white;
}