body {
            margin: 0;
            padding: 0;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
            height: 100vh;
            display: flex;
            justify-content: center;
            align-items: center;
            color: #333;
        }

        .redirect-container {
            text-align: center;
            background: white;
            padding: 40px 60px;
            border-radius: 16px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
            max-width: 400px;
            width: 90%;
        }

        /* Animowany spinner */
        .spinner {
            width: 60px;
            height: 60px;
            border: 5px solid #f3f3f3;
            border-top: 5px solid #0066cc;
            border-radius: 50%;
            animation: spin 1s linear infinite;
            margin: 0 auto 20px auto;
        }

        .error-icon {
            font-size: 50px;
            color: #e74c3c;
            margin-bottom: 20px;
        }

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

        h2 {
            margin-bottom: 10px;
            font-size: 22px;
            color: #2c3e50;
        }

        .username-highlight {
            color: #0066cc;
        }

        p {
            color: #7f8c8d;
            font-size: 14px;
            margin-bottom: 20px;
        }

        a {
            color: #0066cc;
            text-decoration: none;
            font-weight: 600;
        }

        a:hover {
            text-decoration: underline;
        }