<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Admin Panel</title>

<style>
body{
    margin:0;
    font-family:Arial;
    height:100vh;
    display:flex;
    justify-content:center;
    align-items:center;
    background:linear-gradient(135deg,#007185,#003f46);
}

.card{
    background:#fff;
    padding:30px;
    border-radius:12px;
    box-shadow:0 10px 30px rgba(0,0,0,0.2);
    width:100%;
    max-width:420px;
}

h1{
    text-align:center;
    color:#007185;
}
</style>
</head>
<body>