```html
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Uber website: Services</title>
    <style>
        :root {
            --primary: #2A75F0;
            --secondary: #444444;
            --light: #F8F9FA;
            --dark: #1A202C;
            --white: #FFFFFF;
            --gray: #EFEFF2;
            --gradient-end: #0D47A1;
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        
        body {
            color: var(--secondary);
            background-color: var(--white);
            line-height: 1.6;
        }
        
        .placeholder-text {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 1.5rem;
            font-weight: bold;
        }
        
        .hero {
            height: 60vh;
            background: linear-gradient(to right, var(--primary), var(--gradient-end));
            position: relative;
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
        }
        
        .hero h1 {
            font-size: 3rem;
            font-weight: 700;
            color: white;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.2);
            max-width: 80%;
            margin: 0;
            position: relative;
            z-index: 2;
        }
        
        .hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-image: url('data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSI1IiBoZWlnaHQ9IjUiPgo8cmVjdCB3aWR0aD0iNSIgaGVpZ2h0PSI1IiBmaWxsPSIjZjhmOGZiIi8+CjxyZWN0IHg9IjAiIHk9IjAiIHdpZHRoPSI0MCIgaGVpZ2h0PSI0MCIgZmlsbD0iIznquLuGInNiYWNrIi8+Cjwvc3ZnPg==');
            opacity: 0.3;
        }
        
        .content {
            padding: 5rem 2rem;
            max-width: 1200px;
            margin: 0 auto;
        }
        
        .services-description {
            margin-bottom: 3rem;
            font-size: 1.25rem;
            line-height: 1.8;
        }
        
        .card-grid, .gallery {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 2rem;
            margin-bottom: 4rem;
        }
        
        .card {
            border-radius: 8px;
            overflow: hidden;
            box-shadow: 0 4px 6px rgba(0,0,0,0.1);
            transition: transform 0.3s ease;
            background-color: white;
        }
        
        .card:hover {
            transform: translateY(-5px);
        }
        
        .card img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            background-color: var(--gray);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--dark);
        }
        
        .card-content {
            padding: 1.5rem;
        }
        
        .card-content h3 {
            font-size: 1.5rem;
            color: var(--dark);
            margin-bottom: 0.5rem;
        }
        
        .gallery-item {
            position: relative;
            border-radius: 8px;
            overflow: hidden;
            box-shadow: 0 4px 6px rgba(0,0,0,0.1);
            height: 250px;
        }
        
        .gallery-item img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            background-color: var(--gray);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--dark);
        }
        
        .contact-form {
            background-color: white;
            padding: 3rem;
            border-radius: 8px;
            box-shadow: 0 4px 6px rgba(0,0,0,0.1);
            max-width: 700px;
            margin: 0 auto 5rem;
        }
        
        .form-group {
            margin-bottom: 1.5rem;
        }
        
        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 500;
        }
        
        .form-group input, 
        .form-group textarea {
            width: 100%;
            padding: 0.75rem;
            border: 1px solid #ddd;
            border-radius: 4px;
            font-size: 1rem;
        }
        
        .form-group textarea {
            min-height: 150px;
            resize: vertical;
        }
        
        .submit-btn {
            background-color: var(--primary);
            color: white;
            border: none;
            padding: 0.75rem 2rem;
            border-radius: 4px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background-color 0.3s;
        }
        
        .submit-btn:hover {
            background-color: var(--gradient-end);
            color: white;
        }
        
        .footer {
            background-color: var(--dark);
            color: white;
            padding: 3rem 2rem;
            text-align: center;
        }
        
        .footer p {
            margin: 0;
        }
        
        @media (max-width: 768px) {
            .hero h1 {
                font-size: 2.5rem;
                text-align: center;
            }
            
            .card-grid, .gallery {
                grid-template-columns: 1fr;
            }
            
            .contact-form {
                padding: 2rem;
            }
        }
    </style>
</head>
<body>
    <header class="header">
        <div class="hero">
            <div class="placeholder-text-override" style="display:none;">Uber website: Services</div>
        </div>
    </header>
    
    <section class="content">
        <div class="services-description">
            <p>Discover our range of innovative transportation services designed to make your urban experience seamless, reliable, and enjoyable.</p>
            <p>From ride-sharing to premium transportation and cargo solutions, Uber provides convenient options for every journey.</p>
        </div>
        
        <div class="card-grid">
            <div class="card">
                <div class="card-img">
                    <div class="placeholder-text">Ride</div>
                </div>
                <div class="card-content">
                    <h3>Ride Services</h3>
                    <p>Struggling with traffic? Book a reliable ride at your convenience through our easy-to-use app.</p>
                </div>
            </div>
            
            <div class="card">
                <div class="card-img">
                    <div class="placeholder-text">Food</div>
                </div>
                <div class="card-content">
                    <h3>Food Delivery</h3>
                    <p>Get your favorite meals delivered fast. Explore thousands of restaurants and enjoy dining in comfort.</p>
                </div>
            </div>
            
            <div class="card">
                <div class="card-img">
                    <div class="placeholder-text">Bikes</div>
                </div>
                <div class="card-content">
                    <h3>Bike & Scooter Rentals</h3>
                    <p>Navigate to your destination quickly with our shared bike and scooter options.</p>
                </div>
            </div>
        </div>
        
        <div class="gallery">
            <div class="gallery-item">
                <div class="placeholder-text">Urban Mobility Solutions</div>
            </div>
            <div class="gallery-item">
                <div class="placeholder-text">App User Interface</div>
            </div>
            <div class="gallery-item">
                <div class="placeholder-text">Ride Experience</div>
            </div>
            <div class="gallery-item">
                <div class="placeholder-text">Sustainability Initiatives</div>
            </div>
        </div>
        
        <section class="contact-form">
            <h2>Get in Touch</h2>
            <form id="contactForm">
                <div class="form-group">
                    <label for="name">Name</label>
                    <input type="text" id="name" name="name" required>
                </div>
                <div class="form-group">
                    <label for="email">Email</label>
                    <input type="email" id="email" name="email" required>
                </div>
                <div class="form-group">
                    <label for="message">Message</label>
                    <textarea id="message" name="message" required></textarea>
                </div>
                <button type="submit" class="submit-btn">Send Message</button>
            </form>
        </section>
    </section>
    
    <footer class="footer">
        <div class="content">
            <p>&copy; 2023 Uber Technologies Inc. All rights reserved.</p>
            <p>Designed with Uber | A leading mobility company</p>
        </div>
    </footer>
    
    <script>
        // Set header content based on variables
        document.addEventListener('DOMContentLoaded', function() {
            const vars = {
                theme: 'Uber website',
                page: 'Services'
            };
            
            // Set header text
            const headerContent = `Discover ${vars.page} | ${vars.theme}`;
            
            // Update any other elements if needed
        });
        
        // Form submission handling
        document.getElementById('contactForm').addEventListener('submit', function(e) {
            e.preventDefault();
            const formData = {
                name: document.getElementById('name').value,
                email: document.getElementById('email').value,
                message: document.getElementById('message').value
            };
            
            // Here you would typically send the form data to a server
            console.log('Form submitted:', formData);
            alert('Thank you for your message. We will get back to you soon!');
            this.reset();
        });
    </script>
</body>
</html>
```