Now I'll create the landing page with all the requirements. Let me start by updating the layout, globals.css with the brand colors, and creating the landing page components.

Now let me create the main landing page with all the components:

Now let me check if there are any missing UI components and fix the benefits section import issue:

I need to fix the benefits section - the import is at the bottom. Let me fix that:

The file was auto-fixed. Let me verify the page is working properly by checking the current state:

The landing page is now complete. I've created a comprehensive, accessible landing page for WTC - Web Tráfego e Conversão with:

Structure & Accessibility:

• Semantic HTML (header, nav, main, section, footer) with proper heading hierarchy (h1 only in Hero)
• Skip-to-content link for keyboard navigation
• ARIA attributes on interactive elements (accordion, mobile menu)
• Focus states visible on all interactive elements
• Alt text ready for the logo component
• Form with proper labels and ARIA attributes

Design:

• Custom color palette using #CEE7EE (background) and #4BC9B0 (primary/teal)
• Poppins font family
• Mobile-first responsive design
• Rounded corners on all cards/sections
• Floating WhatsApp button

Sections (10 total):

1. Header with navigation anchors
2. Hero Section with H1, CTA and social proof
3. Services (Digital Structure)
4. Plans (Pricing packages)
5. Benefits
6. About Me
7. FAQ with accessible accordion
8. Contact Form with phone mask
9. Social Media links
10. Direct Contacts + Footer with "Back to top"

The toast.tsx file looks fine. Let me search for the exact concatenated class that's causing the error:

Let me check the globals.css file to see if there's any issue with the Tailwind configuration:

The issue might be coming from arbitrary z-index values. Let me check if there's an issue with arbitrary values and search for z-50 (which I used in the WhatsApp button) and z-[100]:

The issue appears to be in the toast.tsx file. Let me update the z-index to use a standard Tailwind class instead of an arbitrary value:

I've fixed the arbitrary z-index values in the UI components. The issue was that arbitrary Tailwind classes like z-[100] and z-[1] were causing issues in the runtime. I replaced them with standard Tailwind z-index classes (z-50 and z-10 respectively) which are properly defined in the Tailwind configuration.

The classes look properly spaced. Let me check the sonner toast component which might be generating this error:

Let me check the dropdown-menu which might have this issue:

Let me check if there's a toaster being used in the layout that might be causing the issue:

Let me check the button component as it's widely used:

Let me search for any cases where z-index classes might be dynamically concatenated:

Let me check if maybe the error is occurring because the runtime is compiling something. Let me check the toast.tsx file again to confirm my edit was applied: