$extra_css = '<style>
        /* Global styles */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            background-color: #f5f7fa;
            color: #333;
            line-height: 1.6;
        }
        
        /* Header styles */
        .header {
            background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
            color: white;
            padding: 2rem 1rem;
            text-align: center;
            box-shadow: 0 2px 4px rgba(0,0,0,0.1);
        }
        
        .header h1 {
            font-size: 2rem;
            margin-bottom: 0.5rem;
        }
        
        .header p {
            font-size: 1rem;
            opacity: 0.9;
        }
        
        /* Main container styles */
        .container {
            max-width: 800px;
            margin: 2rem auto;
            padding: 0 1rem;
        }
        
        /* Tool card styles */
        .tool-card {
            background: white;
            border-radius: 12px;
            box-shadow: 0 4px 12px rgba(0,0,0,0.08);
            padding: 2rem;
            margin-bottom: 2rem;
        }
        
        /* Form styles */
        .form-group {
            margin-bottom: 1.5rem;
        }
        
        .form-label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: #495057;
        }
        
        .form-input {
            width: 100%;
            padding: 0.75rem 1rem;
            border: 2px solid #e1e5e9;
            border-radius: 8px;
            font-size: 1rem;
            transition: border-color 0.3s ease;
        }
        
        .form-input:focus {
            outline: none;
            border-color: #4facfe;
            box-shadow: 0 0 0 3px rgba(79, 172, 254, 0.1);
        }
        
        /* Button styles */
        .btn {
            display: inline-block;
            background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
            color: white;
            border: none;
            padding: 0.75rem 1.5rem;
            border-radius: 8px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            text-decoration: none;
        }
        
        .btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 4px 8px rgba(79, 172, 254, 0.3);
        }
        
        .btn:active {
            transform: translateY(0);
        }
        
        /* Result area styles */
        .result-container {
            margin-top: 2rem;
            padding: 1.5rem;
            background: #f8f9fa;
            border-radius: 8px;
            border: 1px solid #e9ecef;
        }
        
        .result-title {
            font-size: 1.25rem;
            font-weight: 600;
            margin-bottom: 1rem;
            color: #495057;
        }
        
        .result-item {
            margin-bottom: 0.75rem;
        }
        
        .result-label {
            font-weight: 600;
            color: #6c757d;
            display: inline-block;
            width: 120px;
        }
        
        .result-value {
            word-break: break-all;
        }
        
        .result-url {
            color: #007bff;
            text-decoration: none;
            word-break: break-all;
        }
        
        .result-url:hover {
            text-decoration: underline;
        }
        
        /* Error message styles */
        .error-message {
            background: #f8d7da;
            color: #721c24;
            padding: 1rem;
            border: 1px solid #f5c6cb;
            border-radius: 8px;
            margin-bottom: 1rem;
        }
        
        /* Success message styles */
        .success-message {
            background: #d4edda;
            color: #155724;
            padding: 1rem;
            border: 1px solid #c3e6cb;
            border-radius: 8px;
            margin-bottom: 1rem;
        }
        
        /* Copy button styles */
        .copy-btn {
            background: #6c757d;
            color: white;
            border: none;
            padding: 0.25rem 0.75rem;
            border-radius: 4px;
            font-size: 0.875rem;
            cursor: pointer;
            margin-left: 0.5rem;
            transition: background-color 0.3s ease;
        }
        
        .copy-btn:hover {
            background: #5a6268;
        }
        
        /* Copy success toast */
        .copy-toast {
            position: fixed;
            top: 2rem;
            right: 2rem;
            background: #28a745;
            color: white;
            padding: 0.75rem 1.5rem;
            border-radius: 8px;
            font-size: 0.875rem;
            font-weight: 600;
            opacity: 0;
            transform: translateY(-10px);
            transition: all 0.3s ease;
            z-index: 1000;
        }
        
        .copy-toast.show {
            opacity: 1;
            transform: translateY(0);
        }
        
        /* Responsive design */
        @media (max-width: 768px) {
            .header h1 {
                font-size: 1.5rem;
            }
            
            .tool-card {
                padding: 1.5rem;
            }
            
            .btn {
                width: 100%;
            }
            
            .result-label {
                width: 100%;
                margin-bottom: 0.25rem;
            }
        }
    </style>';

include_once '../includes/header.php';
?>
    
    <div class="container">
        <div class="tool-card">
            <form method="POST" action="">
                <div class="form-group">
                    <label for="short_url" class="form-label">Short URL</label>
                    <input 
                        type="url" 
                        id="short_url" 
                        name="short_url" 
                        class="form-input"
                        placeholder="e.g. https://bit.ly/3example"
                        required
                    >
                </div>
                
                <button type="submit" class="btn">Unshorten URL</button>
            </form>
            
                        
                    </div>
        
        <div style="text-align: center; margin-top: 2rem;">
            <a href="../index.php" class="btn">Back to Home</a>
        </div>
        
        <div style="margin-top: 2rem; text-align: center; color: #6c757d; font-size: 0.875rem;">
            <p><strong>Notes:</strong></p>
            <p>1. This tool can only unshorten URLs that use HTTP redirects</p>
            <p>2. Some short URLs may require login or have access restrictions and may not be unshortenable</p>
            <p>3. Please ensure you have permission to access and use the content at the target URL</p>
        </div>
    </div>
    
    <!-- Copy success toast -->
    <div class="copy-toast" id="copy-toast">Copied to clipboard</div>
    
    <script>
        // Get DOM elements
        const copyButtons = document.querySelectorAll('.copy-btn');
        const copyToast = document.getElementById('copy-toast');
        
        // Copy to clipboard
        function copyToClipboard(text) {
            navigator.clipboard.writeText(text).then(() => {
                showCopyToast();
            }).catch(err => {
                console.error('Copy failed:', err);
                
                // Fallback approach
                const textArea = document.createElement('textarea');
                textArea.value = text;
                document.body.appendChild(textArea);
                textArea.select();
                document.execCommand('copy');
                document.body.removeChild(textArea);
                showCopyToast();
            });
        }
        
        // Show copy success toast
        function showCopyToast() {
            copyToast.classList.add('show');
            setTimeout(() => {
                copyToast.classList.remove('show');
            }, 2000);
        }
        
        // Add click event listeners to copy buttons
        copyButtons.forEach(button => {
            button.addEventListener('click', () => {
                const textToCopy = button.getAttribute('data-text');
                copyToClipboard(textToCopy);
            });
        });
    </script>

    <!-- [AD SLOT 3] Before Footer Ad -->
    <div id="before-footer-ad" style="display:none;">
        <!-- Paste your before-footer ad code here -->
    </div>

    <footer>
        <div class="container">
            <p>&copy; 2026 Dev Toolbox - Making development more efficient</p>
        </div>
    </footer>

    <!-- [AD SLOT 4] Footer Ad -->
    <div id="footer-ad" style="display:none;">
        <!-- Paste your footer ad code here -->
    </div>

    <!-- Common JavaScript -->
    <script>
        // Mobile menu toggle
        document.addEventListener('DOMContentLoaded', function() {
            const mobileMenuToggle = document.getElementById('mobileMenuToggle');
            const categorySidebar = document.getElementById('categorySidebar');
            const overlay = document.getElementById('overlay');
            
            if (mobileMenuToggle && categorySidebar && overlay) {
                mobileMenuToggle.addEventListener('click', () => {
                    categorySidebar.classList.toggle('open');
                    overlay.classList.toggle('show');
                    mobileMenuToggle.innerHTML = categorySidebar.classList.contains('open') ?
                        '<i class="fas fa-times"></i>' : '<i class="fas fa-bars"></i>';
                });
                
                overlay.addEventListener('click', () => {
                    categorySidebar.classList.remove('open');
                    overlay.classList.remove('show');
                    mobileMenuToggle.innerHTML = '<i class="fas fa-bars"></i>';
                });
            }
        });
    </script>

    </body>
</html>