Refactor how-it-works and pricing sections; update text and layout for clarity. Remove social proof section and related star component. Add demo and FAQ sections for enhanced user guidance. Introduce site configuration files for environment-specific settings.

src/_includes/layouts/base.njk

@@ -75,6 +75,8 @@
   <link href="https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800;900&display=swap" rel="stylesheet" />
   <style>
     [x-cloak] { display: none !important; }
+    html { scroll-padding-top: 6rem; }
+    body { text-rendering: optimizeLegibility; }
     input[type="range"] { accent-color: #3b63f5; }
     .price-ars { display: none; }
     html[data-currency="ars"] .price-ars { display: inline; }