<!DOCTYPE html>
<html lang="fr">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Connexion</title>
    <style>
        body {
            font-family: Arial, sans-serif;
            background: #f5f5f5;
            padding: 40px;
        }
        .card {
            max-width: 360px;
            margin: auto;
            background: #fff;
            padding: 30px;
            border-radius: 10px;
            box-shadow: 0 0 10px rgba(0,0,0,0.1);
        }
        input {
            width: 100%;
            padding: 10px;
            margin: 10px 0;
            border: 1px solid #ccc;
            border-radius: 5px;
        }
        input[type='submit'] {
            background: #007BFF;
            color: #fff;
            border: none;
            cursor: pointer;
        }
        input[type='submit']:hover {
            background: #0056b3;
        }
        .error {
            color: red;
            margin-bottom: 10px;
            text-align: center;
        }
    </style>
</head>
<body>
    <div class="card">
        <h2>Connexion requise</h2>
        <p>Veuillez entrer vos identifiants pour accéder au service.</p>
        {% if error %}
            <div class="error">{{ error }}</div>
        {% endif %}
        <form method="post">
            <input type="text" name="username" placeholder="Nom d'utilisateur" required>
            <input type="password" name="password" placeholder="Mot de passe" required>
            <input type="submit" value="Se connecter">
        </form>
    </div>
</body>
</html>