<!DOCTYPE html>
<html lang="id">
<head>
<meta charset="UTF-8">
<title>404</title>
<style>
body{
    font-family:Arial;
    background:#f5f5f5;
    display:flex;
    justify-content:center;
    align-items:center;
    height:100vh;
}
.box{
    background:white;
    padding:40px;
    border-radius:12px;
    text-align:center;
    box-shadow:0 5px 20px rgba(0,0,0,.15);
}
a{
    display:inline-block;
    margin-top:20px;
    text-decoration:none;
    color:#1565C0;
}
</style>
</head>
<body>

<div class="box">
<h1>404</h1>
<p>Dokumen tidak ditemukan.</p>

<a href="/">← Kembali ke Beranda</a>

</div>

</body>
</html>