Objective: Create a single, self-contained HTML file containing all necessary HTML, CSS, and JavaScript for a sophisticated, production-ready SaaS landing page.

Aesthetic: Modern Glass Morphism with Sophisticated Gradients
Definition: This style should feel modern, clean, and tech-focused. It uses layers, blur, and light to create a sense of depth. Key elements must include:

Glass Morphism: The core of the design. Containers, cards, and headers should have a frosted glass effect. This is achieved with a semi-transparent background, a background blur (e.g., backdrop-filter: blur(10px)), and a subtle, thin white border to catch the light and define the element's edge.

Sophisticated Gradients: The background should feature a slow-moving, multi-color gradient, often called an "aurora" or "mesh" gradient. This provides a colorful backdrop for the glass elements to sit on top of, making the blur effect visible and beautiful.

Typography: Clean, sharp, and highly readable sans-serif fonts (e.g., Inter, Roboto, or system-ui). Text should be primarily white or a very light gray to ensure high contrast against the semi-transparent glass elements.

Color Palette: The background gradients should use a palette of deep, modern colors like purples, teals, and blues. The overall feel should be luminous but professional. Accent colors for CTAs could be a brighter, more saturated version of one of the gradient colors.

Layout: Clean, grid-based, with ample whitespace. The layered glass elements should create a clear visual hierarchy.

Tone: Serious, professional, innovative, and trustworthy. The feel should be premium and suitable for an enterprise-level SaaS product.

Technical Requirements:
Single File: All HTML, CSS (in a style tag), and JavaScript (in a script tag) must be in one .html file.

Responsiveness: Must be fully responsive, looking excellent on mobile, tablet, and desktop screens. Use modern CSS like Flexbox and Grid.

Animations: Subtle, high-quality animations are required:
Hover Effects: Interactive elements (buttons, cards) should have clear hover states, such as a subtle glow, a change in border color, or a slight lift effect.
Scroll Animations: Sections should subtly fade in or slide up as they enter the viewport (using JavaScript and Intersection Observer).
Smooth Scrolling: Navigation links should smoothly scroll to the target sections.

Content and Structure (Minimum 6 Detailed Sections):
The content should be detailed and realistic for a fictional enterprise SaaS product (e.g., an AI-driven data compliance platform called "AegisFlow"). No lorem ipsum.

Navigation and Header: Sticky, glass morphism header with logo, links to sections, and a primary CTA button.

Hero Section: Strong, compelling headline, a detailed value proposition paragraph, two CTA buttons (e.g., "Request Demo", "Learn More"), and an abstract, glowing graphic or a data visualization element that complements the gradient and glass theme.

Problem and Solution / How It Works: A detailed section outlining the complex problem the SaaS solves (e.g., data silos, regulatory risk) and a 3-step visual breakdown of how AegisFlow addresses it. Use distinct glass morphism containers for each step.

Detailed Key Features: At least 3-4 feature blocks. Each must have a unique, simple SVG icon, a strong title, a comprehensive description (2-3 sentences), and a "Learn More" link. Use a grid layout with glass morphism cards for each feature.

Social Proof and Deep Testimonials:
A sub-section showing logos of trusted (fictional) enterprise clients.
At least two detailed, realistic testimonials from C-suite personas (e.g., CTO, Chief Data Officer), presented in glass morphism cards.

Pricing Tiers: Three clear pricing cards (e.g., "Basic," "Enterprise," "Custom") using the glass morphism style. Each card must have a price, a detailed list of features, and a CTA. Highlight the most popular plan, perhaps with a brighter border or a subtle glow.

Final CTA and Footer: A strong, full-width call-to-action block, followed by a functional footer with company info, necessary links (Privacy, Terms, Contact, Careers), and simple social icons.

Quality Standard: The output should look and feel like a real, live landing page for a serious company. Code should be clean, well-organized, and the design polished.