*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body{
    font-family: Arial, sans-serif;
    background: #f4f4f4;
    color: #333;
    line-height: 1.6;
}                                                                                    

header{
    background: #0077cc;
    color: white;
    text-align: center;
    padding: 40px 20px;
}

nav{
    background: #333;
    text-align: center;
    padding: 15px;
}

nav a{
    color: white;
    text-decoration: none;
    margin: 0 15px;
    font-weight: bold;
}

nav a:hover{
    color: #00ccff;
}

section{
    width: 80%;
    max-width: 900px;
    margin: 30px auto;
    background: white;
    padding: 25px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

h2{
    color: #0077cc;
    margin-bottom: 15px;
}

ul{
    padding-left: 20px;
}

footer{
    background: #333;
    color: white;
    text-align: center;
    padding: 20px;
    margin-top: 30px;
}