/* ARIANE  Écrans de connexion Discord et d'erreur */

        /* LOGIN SCREEN */
        #login-screen {
            display: flex;
            justify-content: center;
            align-items: center;
            min-height: 100vh;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            z-index: 9999;
        }

        #login-screen.hidden {
            display: none;
        }

        .login-card {
            background: white;
            border-radius: 16px;
            padding: 60px 40px;
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
            text-align: center;
            max-width: 400px;
            width: 100%;
        }

        .login-card h1 {
            color: #667eea;
            margin-bottom: 15px;
            font-size: 2.2em;
        }

        .login-card p {
            color: #666;
            margin-bottom: 40px;
            font-size: 1.05em;
        }

        .login-btn {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            border: none;
            padding: 16px 32px;
            border-radius: 8px;
            font-size: 1.1em;
            font-weight: 600;
            cursor: pointer;
            transition: transform 0.3s, box-shadow 0.3s;
            width: 100%;
        }

        .login-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 30px rgba(102, 126, 234, 0.4);
        }

        .login-spinner {
            border: 4px solid #f0f0f0;
            border-top: 4px solid #667eea;
            border-radius: 50%;
            width: 40px;
            height: 40px;
            animation: spin 1s linear infinite;
            margin: 0 auto 20px;
        }

        @keyframes spin {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }

        /* ERROR SCREEN */
        .error-card {
            background: white;
            border-radius: 16px;
            padding: 60px 40px;
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
            text-align: center;
            max-width: 500px;
            width: 100%;
        }

        .error-icon {
            font-size: 4em;
            margin-bottom: 20px;
        }

        .error-card h1 {
            color: #ef4444;
            margin-bottom: 20px;
            font-size: 1.8em;
        }

        .error-card p {
            color: #666;
            margin-bottom: 15px;
            font-size: 1em;
            line-height: 1.6;
        }

        .error-code {
            background: #f5f5f5;
            color: #666;
            padding: 15px;
            border-radius: 8px;
            margin: 20px 0;
            font-size: 0.9em;
            font-family: monospace;
        }

        .seDeconnecter-btn-error {
            background: #667eea;
            color: white;
            border: none;
            padding: 12px 24px;
            border-radius: 8px;
            cursor: pointer;
            font-weight: 600;
            margin-top: 20px;
        }

        #error-screen {
            display: none;
            justify-content: center;
            align-items: center;
            min-height: 100vh;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            z-index: 9999;
        }

        #error-screen.visible {
            display: flex;
        }