body{
    margin:0;
    font-family:Arial, sans-serif;
    background:#f5f5f5;
}

header{
    background:#0d6efd;
    color:white;
    text-align:center;
    padding:25px;
}

nav{
    background:#222;
    text-align:center;
    padding:12px;
}

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

nav a:hover{
    color:yellow;
}

section{
    max-width:1000px;
    margin:20px auto;
    background:white;
    padding:25px;
    border-radius:10px;
    box-shadow:0 0 10px rgba(0,0,0,0.15);
}

h2{
    color:#0d6efd;
}

footer{
    background:#222;
    color:white;
    text-align:center;
    padding:15px;
    margin-top:30px;
}