<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>404 - Page Not Found</title>
  <link rel="stylesheet" href="/en/css/bootstrap.min.css">
  <link rel="stylesheet" href="/en/css/style.css">
  <style>
    .error-page {
      min-height: 100vh;
      display: flex;
      align-items: center;
      justify-content: center;
      background: #f7f9fc;
      padding: 40px 20px;
    }
    .error-box {
      max-width: 720px;
      width: 100%;
      text-align: center;
      background: #fff;
      border-radius: 16px;
      padding: 48px 32px;
      box-shadow: 0 12px 40px rgba(0, 0, 0, 0.08);
    }
    .error-code {
      font-size: 72px;
      line-height: 1;
      font-weight: 700;
      color: #0d6efd;
      margin-bottom: 16px;
    }
    .error-title {
      font-size: 28px;
      font-weight: 600;
      color: #1f2937;
      margin-bottom: 12px;
    }
    .error-desc {
      font-size: 16px;
      color: #6b7280;
      margin-bottom: 28px;
    }
    .error-btn {
      display: inline-block;
      padding: 12px 28px;
      background: #0d6efd;
      color: #fff;
      border-radius: 8px;
      text-decoration: none;
    }
    .error-btn:hover {
      color: #fff;
      opacity: 0.92;
    }
  </style>
</head>
<body>
<div class="error-page">
  <div class="error-box">
    <div class="error-code">404</div>
    <div class="error-title">Page Not Found</div>
    <div class="error-desc">
      The page you are looking for does not exist or has been moved.
    </div>
    <a href="/en/" class="error-btn">Back to Home</a>
  </div>
</div>
</body>
</html>